410 Area Code
Area code 410 is in Maryland covering Baltimore , along with Columbia, Fort Meade and 205 towns and cities.
410 Area Code Phone Lookup
203/475
Cities covering area code 410
View more
Columbia
Fort Meade
North Beach
Shady Side
Marydel
Aberdeen
Aberdeen Proving Ground
Algonquin
Allen
Annapolis
Annapolis Neck
Arbutus
Arden On The Severn
Arnold
Baltimore
Baltimore Highlands
Barclay
Bel Air
Bel Air North
Bel Air South
Berlin
Betterton
Bishopville
Bivalve
Bowleys Quarters
Brooklyn Park
Brookview
Broomes Island
Butlertown
Calvert Beach
Cambridge
Cape St. Claire
Carney
Catonsville
Cecilton
Centreville
Chance
Charlestown
Chesapeake Beach
Chesapeake City
Chesapeake Ranch Estates
Chester
Chestertown
Choptank
Church Creek
Church Hill
Cockeysville
Cordova
Crisfield
Crofton
Crownsville
Dames Quarter
Darlington
Deal Island
Deale
Delmar
Denton
Drum Point
Dundalk
East New Market
Easton
Eden
Edesville
Edgemere
Edgewater
Edgewood
Eldersburg
Eldorado
Elkridge
Elkton
Ellicott City
Elliott
Essex
Fairlee
Fairmount
Fallston
Federalsburg
Ferndale
Fishing Creek
Frenchtown-rumbly
Friendship
Fruitland
Galena
Galestown
Galesville
Gambrills
Garrison
Georgetown
Girdletree
Glen Burnie
Goldsboro
Grasonville
Greensboro
Hampstead
Hampton
Havre De Grace
Hebron
Henderson
Herald Harbor
Highland Beach
Hillsboro
Huntingtown
Hurlock
Ilchester
Jarrettsville
Jessup
Jesterville
Joppatowne
Kennedyville
Kent Narrows
Kingstown
Kingsville
Lake Shore
Lansdowne
Linthicum
Lochearn
Long Beach
Lusby
Lutherville
Madison
Manchester
Mardela Springs
Mayo
Mays Chapel
Middle River
Milford Mill
Millington
Mount Vernon
Nanticoke
Nanticoke Acres
Naval Academy
New Windsor
Newark
North East
Ocean City
Ocean Pines
Odenton
Overlea
Owings
Owings Mills
Oxford
Parkville
Parole
Parsonsburg
Pasadena
Perry Hall
Perryman
Perryville
Pikesville
Pittsville
Pleasant Hills
Pocomoke City
Port Deposit
Powellville
Preston
Prince Frederick
Princess Anne
Pylesville
Quantico
Queen Anne
Queenstown
Randallstown
Reisterstown
Ridgely
Rising Sun
Riva
Riverside
Riviera Beach
Rock Hall
Rosedale
Rossville
Salisbury
Secretary
Severn
Severna Park
Sharptown
Smith Island
Snow Hill
Solomons
St. Leonard
St. Michaels
Stevensville
Stockton
Sudlersville
Sykesville
Taneytown
Taylors Island
Templeville
Tilghman Island
Timonium
Tolchester
Towson
Trappe
Tyaskin
Union Bridge
Vienna
Waterview
West Denton
West Ocean City
West Pocomoke
Westminster
Whaleyville
White Marsh
Whitehaven
Willards
Williston
Woodlawn
Worton
Zip Codes that Use 410 Area Code
21601
21804
21228
21229
21209
21811
21201
21801
21403
21221
20850
21060
21822
21613
21401
21217
21654
21230
21203
21215
21211
21120
21074
21233
21218
21236
21204
21842
21802
21113
21239
21226
20732
21212
21631
21210
21231
21035
21207
21001
21913
21224
21914
21402
21075
21042
21658
20755
21202
21012
21023
21048
21214
21015
21213
20629
21027
21220
21787
21610
21045
21813
21032
21225
21117
21223
21625
21244
20657
21030
21918
21227
21222
21921
21622
21031
21784
21061
21286
21044
21824
21206
20903
21607
21161
21216
21208
21114
21034
20706
21673
20639
21133
21629
20783
21723
21617
21017
20615
20707
21205
21051
21093
21009
21287
21054
21843
21090
21013
21037
20779
21619
20708
20678
21146
21156
21838
21829
21771
21661
21078
21635
21853
21917
21040
21609
21240
21028
21076
21657
21014
21108
21623
21071
20778
21252
21655
20724
21046
21826
20716
21612
21043
21875
21632
21757
21152
21620
21821
21738
21638
21791
21849
21405
20725
20723
20733
21234
21814
21915
21665
20720
21162
20782
21901
21047
21132
21136
21050
21235
21817
20701
21922
Phone Number Prefixes inArea code 410
| Prefix | County | City | Carrier | Type |
|---|---|---|---|---|
| (410) 200 | Talbot | Easton | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 202 | Wicomico | Salisbury | Nationsline, Inc.-md | Landline |
| (410) 203 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 204 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 205 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 206 | Baltimore | Catonsville | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 207 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 208 | Worcester | Berlin | Verizon Maryland, Inc. | Landline |
| (410) 209 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 210 | Wicomico | Salisbury | Aquis Communications, Inc. | Wireless |
| (410) 212 | Anne Arundel | Annapolis | Sprint Spectrum L.p. | Wireless |
| (410) 213 | Worcester | Berlin | Verizon Maryland, Inc. | Landline |
| (410) 214 | Baltimore City | Baltimore | Core Communications, Inc. - Md | Wireless |
| (410) 215 | Baltimore | Essex | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 216 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 217 | Montgomery | Rockville | Verizon Maryland, Inc. | Wireless |
| (410) 218 | Anne Arundel | Glen Burnie | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 219 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 221 | Dorchester | Cambridge | Verizon Maryland, Inc. | Landline |
| (410) 222 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 223 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 224 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 225 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 226 | Talbot | Oxford | Verizon Maryland, Inc. | Landline |
| (410) 227 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 228 | Dorchester | Cambridge | Verizon Maryland, Inc. | Landline |
| (410) 229 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 230 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 231 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 232 | Baltimore City | Baltimore | Usa Mobility Wireless, Inc. | Wireless |
| (410) 233 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 234 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 235 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 236 | Baltimore | Parkton | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 237 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 238 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 239 | Carroll | Hampstead | Verizon Maryland, Inc. | Landline |
| (410) 241 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 242 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 243 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 244 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 245 | Baltimore | Nottingham | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 246 | Baltimore City | Baltimore | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 247 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 248 | Baltimore | Nottingham | Verizon Maryland, Inc. | Landline |
| (410) 249 | Baltimore | Towson | Verizon Maryland, Inc. | Wireless |
| (410) 250 | Worcester | Ocean City | Verizon Maryland, Inc. | Landline |
| (410) 251 | Wicomico | Salisbury | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 252 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 253 | Anne Arundel | Odenton | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 254 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 255 | Anne Arundel | Curtis Bay | Verizon Maryland, Inc. | Landline |
| (410) 256 | Baltimore | Nottingham | Verizon Maryland, Inc. | Landline |
| (410) 257 | Calvert | Chesapeake Beach | Verizon Maryland, Inc. | Landline |
| (410) 258 | Baltimore City | Baltimore | Sprint Spectrum L.p. | Wireless |
| (410) 259 | Dorchester | East New Market | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 260 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 261 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 262 | Baltimore City | Baltimore | Sprint Spectrum L.p. | Wireless |
| (410) 263 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 264 | Anne Arundel | Davidsonville | Verizon Maryland, Inc. | Wireless |
| (410) 265 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 266 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 267 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 268 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 269 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 270 | Wicomico | Salisbury | Redi-call Communications Co | Wireless |
| (410) 271 | Anne Arundel | Annapolis | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 272 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 273 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 274 | Baltimore | Catonsville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 275 | Cecil | Cecilton | Verizon Maryland, Inc. | Landline |
| (410) 276 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 277 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 278 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 279 | Anne Arundel | Annapolis | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 280 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 281 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 282 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 283 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 284 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 285 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 286 | Calvert | Chesapeake Beach | Verizon Maryland, Inc. | Landline |
| (410) 287 | Cecil | Charlestown | Verizon Maryland, Inc. | Landline |
| (410) 288 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 289 | Worcester | Ocean City | Verizon Maryland, Inc. | Landline |
| (410) 290 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 291 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 292 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 293 | Anne Arundel | Annapolis | Paetec Communications, Inc. - Md | Landline |
| (410) 294 | Anne Arundel | Glen Burnie | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 295 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 296 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 297 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 298 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 299 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 300 | Howard | Elkridge | Sprint Spectrum L.p. | Wireless |
| (410) 302 | Baltimore | Catonsville | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 303 | Howard | Ellicott City | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 304 | Queen Annes | Queenstown | Idt America, Corp. - Md | N/A |
| (410) 305 | Anne Arundel | Fort George G Meade | Verizon Maryland, Inc. | Landline |
| (410) 306 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 307 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 308 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 309 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 310 | Talbot | Easton | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 312 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 313 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 314 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 315 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 316 | Baltimore | Butler | Verizon Maryland, Inc. | Landline |
| (410) 317 | Carroll | Finksburg | Mcimetro, Ats, Inc. | Landline |
| (410) 318 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 319 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 320 | Anne Arundel | Annapolis | Nextel Communications, Inc. | Wireless |
| (410) 321 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 322 | Harford | Bel Air | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 323 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 324 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 325 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 326 | Calvert | Dowell | Verizon Maryland, Inc. | Landline |
| (410) 327 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 328 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 329 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 330 | Dorchester | Cambridge | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 331 | Howard | Elkridge | Usa Mobility Wireless, Inc. | Wireless |
| (410) 332 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 333 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 334 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 335 | Baltimore | Chase | Verizon Maryland, Inc. | Landline |
| (410) 336 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 337 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 338 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 339 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 340 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 341 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 342 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 343 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 344 | Baltimore | Middle River | Verizon Maryland, Inc. | Landline |
| (410) 345 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 346 | Carroll | Taneytown | Verizon Maryland, Inc. | Landline |
| (410) 347 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 348 | Kent | Betterton | Verizon Maryland, Inc. | Landline |
| (410) 349 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 350 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 351 | Howard | Columbia | Usa Mobility Wireless, Inc. | Wireless |
| (410) 352 | Worcester | Bishopville | Verizon Maryland, Inc. | Landline |
| (410) 353 | Anne Arundel | Crownsville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 354 | Baltimore City | Brooklyn | Verizon Maryland, Inc. | Landline |
| (410) 355 | Baltimore City | Brooklyn | Verizon Maryland, Inc. | Landline |
| (410) 356 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 357 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 358 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 359 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Wireless |
| (410) 360 | Anne Arundel | Curtis Bay | Verizon Maryland, Inc. | Landline |
| (410) 361 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 362 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 363 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 364 | Talbot | Cordova | Verizon Maryland, Inc. | Landline |
| (410) 365 | Baltimore City | Brooklyn | Nextel Communications, Inc. | Wireless |
| (410) 366 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 367 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 368 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 369 | Baltimore City | Baltimore | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 370 | Baltimore | Windsor Mill | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 371 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 372 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 373 | Calvert | Lusby | Usa Mobility Wireless, Inc. | Wireless |
| (410) 374 | Carroll | Hampstead | Verizon Maryland, Inc. | Landline |
| (410) 375 | Baltimore | Cockeysville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 376 | Dorchester | Cambridge | Verizon Maryland, Inc. | Landline |
| (410) 377 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 378 | Cecil | Conowingo | Verizon Maryland, Inc. | Landline |
| (410) 379 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 380 | Wicomico | Salisbury | Redi-call Communications Co | Wireless |
| (410) 381 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 382 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 383 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 384 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 385 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 386 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 387 | Baltimore | Halethorpe | Usa Mobility Wireless, Inc. | Wireless |
| (410) 388 | Baltimore | Dundalk | Verizon Maryland, Inc. | Landline |
| (410) 389 | Baltimore City | Baltimore | Usa Mobility Wireless, Inc. | Wireless |
| (410) 390 | Baltimore City | Baltimore | Wireless | |
| (410) 391 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 392 | Cecil | Elkton | Verizon Maryland, Inc. | Landline |
| (410) 393 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 394 | Calvert | Dowell | Verizon Maryland, Inc. | Landline |
| (410) 395 | Baltimore | Halethorpe | Verizon Maryland, Inc. | Wireless |
| (410) 396 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 397 | Dorchester | Church Creek | Verizon Maryland, Inc. | Landline |
| (410) 398 | Cecil | Elkton | Verizon Maryland, Inc. | Landline |
| (410) 399 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 400 | Baltimore City | Baltimore | Cavalier Telephone Mid-atlantic. Llc - Md | N/A |
| (410) 401 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 402 | Baltimore | Catonsville | Mcimetro, Ats, Inc. | Landline |
| (410) 403 | Baltimore | Hunt Valley | Mcimetro, Ats, Inc. | Landline |
| (410) 404 | Carroll | Sykesville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 405 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 406 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 407 | Howard | Elkridge | Verizon Maryland, Inc. | Wireless |
| (410) 408 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 409 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 412 | Anne Arundel | Glen Burnie | Mcimetro, Ats, Inc. | Landline |
| (410) 413 | Baltimore | Owings Mills | Mcimetro, Ats, Inc. | Landline |
| (410) 414 | Calvert | Chesapeake Beach | Verizon Maryland, Inc. | Landline |
| (410) 415 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 416 | Baltimore | Towson | Verizon Maryland, Inc. | Wireless |
| (410) 417 | Howard | Ellicott City | Verizon Maryland, Inc. | Wireless |
| (410) 418 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 419 | Harford | Bel Air | Sprint Spectrum L.p. | Wireless |
| (410) 420 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 421 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 422 | Dorchester | East New Market | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 423 | Howard | Columbia | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 424 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 425 | Somerset | Ewell | Verizon Maryland, Inc. | Landline |
| (410) 426 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 427 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 428 | Baltimore | Nottingham | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 429 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 430 | Wicomico | Salisbury | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 431 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 432 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 433 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 434 | Montgomery | Silver Spring | Usa Mobility Wireless, Inc. | Wireless |
| (410) 435 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 436 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 437 | Anne Arundel | Curtis Bay | Verizon Maryland, Inc. | Landline |
| (410) 438 | Queen Annes | Barclay | Verizon Maryland, Inc. | Landline |
| (410) 439 | Anne Arundel | Curtis Bay | Verizon Maryland, Inc. | Landline |
| (410) 440 | Harford | White Hall | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 441 | Cecil | Elkton | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 442 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 443 | Talbot | Easton | Level 3 Communications, Llc - Md | Landline |
| (410) 444 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 445 | Baltimore City | Baltimore | Usa Mobility Wireless, Inc. | Wireless |
| (410) 446 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 447 | Howard | Columbia | Usa Mobility Wireless, Inc. | Wireless |
| (410) 448 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 449 | Baltimore | Pikesville | Weblink Wireless, Inc. | Wireless |
| (410) 450 | Howard | Ellicott City | Verizon Maryland, Inc. | Landline |
| (410) 451 | Anne Arundel | Crofton | Verizon Maryland, Inc. | Landline |
| (410) 452 | Harford | Darlington | Verizon Maryland, Inc. | Landline |
| (410) 453 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 454 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 455 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 456 | Prince Georges | Lanham | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 457 | Harford | Darlington | Verizon Maryland, Inc. | Landline |
| (410) 458 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 459 | Anne Arundel | Annapolis | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 460 | Anne Arundel | Glen Burnie | Usa Mobility Wireless, Inc. | Wireless |
| (410) 461 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 462 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 463 | Talbot | Trappe | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 464 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 465 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 466 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 467 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 468 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 469 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 470 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 471 | Howard | Elkridge | Verizon Maryland, Inc. | Landline |
| (410) 472 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 473 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 474 | Calvert | Huntingtown | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 475 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 476 | Dorchester | Cambridge | Verizon Maryland, Inc. | Landline |
| (410) 477 | Baltimore | Dundalk | Verizon Maryland, Inc. | Landline |
| (410) 478 | Baltimore | Randallstown | Usa Mobility Wireless, Inc. | Wireless |
| (410) 479 | Caroline | Denton | Verizon Maryland, Inc. | Landline |
| (410) 480 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 481 | Prince Georges | Hyattsville | Landline | |
| (410) 482 | Caroline | Denton | Verizon Maryland, Inc. | Landline |
| (410) 483 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 484 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 485 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 486 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 487 | Baltimore | Towson | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 488 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 489 | Howard | Cooksville | Verizon Maryland, Inc. | Landline |
| (410) 490 | Queen Annes | Centreville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 491 | Harford | Belcamp | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 492 | Wicomico | Salisbury | Usa Mobility Wireless, Inc. | Wireless |
| (410) 493 | Baltimore City | Baltimore | Sprint Spectrum L.p. | Wireless |
| (410) 494 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 495 | Calvert | Broomes Island | Verizon Maryland, Inc. | Landline |
| (410) 496 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 497 | Prince Georges | Laurel | Comcast Business Communications, Inc. - Md | Landline |
| (410) 498 | Baltimore City | Baltimore | Cavalier Telephone Mid-atlantic. Llc - Md | Landline |
| (410) 499 | Baltimore City | Baltimore | Sprint Spectrum L.p. | Wireless |
| (410) 500 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 501 | Baltimore | Halethorpe | Lightwave Communications, Llc - Md | Landline |
| (410) 502 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 503 | Howard | Elkridge | Verizon Maryland, Inc. | Wireless |
| (410) 504 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 505 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 506 | Cecil | Elkton | Verizon Maryland, Inc. | Landline |
| (410) 507 | Anne Arundel | Annapolis | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 508 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 509 | Baltimore City | Baltimore | Baltimore-washington Telephone Bwt | Landline |
| (410) 510 | Baltimore | Fork | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 512 | Baltimore | Lutherville Timonium | Verizon Maryland, Inc. | Landline |
| (410) 513 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 514 | Anne Arundel | Crownsville | Verizon Maryland, Inc. | Landline |
| (410) 515 | Harford | Abingdon | Verizon Maryland, Inc. | Landline |
| (410) 516 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 517 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 518 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 519 | Anne Arundel | Gambrills | Verizon Maryland, Inc. | Landline |
| (410) 520 | Worcester | Ocean City | Verizon Maryland, Inc. | Landline |
| (410) 521 | Baltimore | Pikesville | Verizon Maryland, Inc. | Landline |
| (410) 522 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 523 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 524 | Worcester | Ocean City | Verizon Maryland, Inc. | Landline |
| (410) 525 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 526 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 527 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 528 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 529 | Baltimore | Nottingham | Verizon Maryland, Inc. | Landline |
| (410) 530 | Baltimore | Gwynn Oak | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 531 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 532 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 533 | Anne Arundel | Crofton | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 534 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 535 | Calvert | Chesapeake Beach | Verizon Maryland, Inc. | Landline |
| (410) 536 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 537 | Worcester | Ocean City | Verizon Maryland, Inc. | Landline |
| (410) 538 | Harford | Abingdon | Verizon Maryland, Inc. | Landline |
| (410) 539 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 540 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 541 | Anne Arundel | Linthicum Heights | Verizon Maryland, Inc. | Landline |
| (410) 542 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 543 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 544 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 545 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 546 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 547 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 548 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 549 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 550 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 551 | Anne Arundel | Gambrills | Verizon Maryland, Inc. | Landline |
| (410) 552 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 553 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 554 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 556 | Queen Annes | Centreville | Verizon Maryland, Inc. | Landline |
| (410) 557 | Baltimore | Baldwin | Verizon Maryland, Inc. | Landline |
| (410) 558 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 559 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 560 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 561 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 562 | Anne Arundel | Odenton | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 563 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 564 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 565 | Baltimore | Halethorpe | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 566 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 567 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 568 | Baltimore | Cockeysville | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 569 | Harford | Abingdon | Verizon Maryland, Inc. | Landline |
| (410) 570 | Anne Arundel | Edgewater | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 571 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 572 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 573 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 574 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 575 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 576 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 577 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 578 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 579 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 580 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 581 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 582 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 583 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 584 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 585 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 586 | Calvert | Broomes Island | Verizon Maryland, Inc. | Landline |
| (410) 587 | Baltimore | Cockeysville | Verizon Maryland, Inc. | Landline |
| (410) 588 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 589 | Anne Arundel | Curtis Bay | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 590 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 591 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 592 | Baltimore | Baldwin | Verizon Maryland, Inc. | Landline |
| (410) 593 | Baltimore | Baldwin | Verizon Maryland, Inc. | Landline |
| (410) 594 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 595 | Baltimore | Halethorpe | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 596 | Howard | Columbia | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 597 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 598 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 599 | Anne Arundel | Tracys Landing | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 600 | Worcester | Berlin | Sprint Communications Company, L.p. - Md | N/A |
| (410) 601 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 602 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 603 | Wicomico | Salisbury | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 604 | Queen Annes | Chester | Verizon Maryland, Inc. | Landline |
| (410) 605 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 606 | Prince Georges | Laurel | Verizon Maryland, Inc. | Wireless |
| (410) 607 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 608 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 609 | Baltimore City | Brooklyn | Verizon Maryland, Inc. | Landline |
| (410) 610 | Calvert | Prince Frederick | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 612 | Harford | Abingdon | Verizon Maryland, Inc. | Landline |
| (410) 613 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 614 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 615 | Anne Arundel | Severna Park | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 616 | Baltimore | Towson | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 617 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 618 | Wicomico | Salisbury | Wireless | |
| (410) 619 | Baltimore | Upper Falls | Verizon Maryland, Inc. | Wireless |
| (410) 620 | Cecil | Elkton | Verizon Maryland, Inc. | Landline |
| (410) 621 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 622 | Wicomico | Salisbury | Usa Mobility Wireless, Inc. | Wireless |
| (410) 623 | Somerset | Marion Station | Verizon Maryland, Inc. | Landline |
| (410) 624 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 625 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 626 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 627 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 628 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 629 | Worcester | Berlin | Verizon Maryland, Inc. | Landline |
| (410) 630 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 631 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 632 | Worcester | Girdletree | Verizon Maryland, Inc. | Landline |
| (410) 633 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 634 | Caroline | Denton | Verizon Maryland, Inc. | Landline |
| (410) 635 | Frederick | Mount Airy | Verizon Maryland, Inc. | Landline |
| (410) 636 | Baltimore City | Brooklyn | Verizon Maryland, Inc. | Landline |
| (410) 637 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 638 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 639 | Kent | Rock Hall | Verizon Maryland, Inc. | Landline |
| (410) 640 | Baltimore City | Baltimore | Usa Mobility Wireless, Inc. | Wireless |
| (410) 641 | Worcester | Berlin | Verizon Maryland, Inc. | Landline |
| (410) 642 | Harford | Havre De Grace | Verizon Maryland, Inc. | Landline |
| (410) 643 | Queen Annes | Chester | Verizon Maryland, Inc. | Landline |
| (410) 644 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 645 | Baltimore City | Baltimore | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 646 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 647 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 648 | Kent | Galena | Verizon Maryland, Inc. | Landline |
| (410) 649 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 650 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 651 | Somerset | Princess Anne | Verizon Maryland, Inc. | Landline |
| (410) 652 | Harford | Bel Air | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 653 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 654 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 655 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 656 | Anne Arundel | Severna Park | Armstrong Telecommunications, Inc. - Md | Wireless |
| (410) 657 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 658 | Cecil | Colora | Armstrong Telephone Co. Of Maryland | Landline |
| (410) 659 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 660 | Howard | Elkridge | Sprint Spectrum L.p. | N/A |
| (410) 661 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 662 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 663 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 664 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 665 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 666 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 667 | Baltimore City | Baltimore | Landline | |
| (410) 668 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 669 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 670 | Harford | Edgewood | Mcimetro, Ats, Inc. | Landline |
| (410) 671 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 672 | Anne Arundel | Fort George G Meade | Verizon Maryland, Inc. | Landline |
| (410) 673 | Caroline | Bethlehem | Verizon Maryland, Inc. | Landline |
| (410) 674 | Anne Arundel | Fort George G Meade | Verizon Maryland, Inc. | Landline |
| (410) 675 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 676 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 677 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 678 | Baltimore | Essex | Usa Mobility Wireless, Inc. | Wireless |
| (410) 679 | Harford | Abingdon | Verizon Maryland, Inc. | Landline |
| (410) 680 | Howard | Ellicott City | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 681 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 682 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 683 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 684 | Anne Arundel | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 685 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 686 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 687 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 688 | Harford | Churchville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 689 | Anne Arundel | Hanover | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 690 | Queen Annes | Queen Anne | At&t Local | Landline |
| (410) 691 | Anne Arundel | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 692 | Baltimore | Baldwin | Verizon Maryland, Inc. | Landline |
| (410) 693 | Anne Arundel | Annapolis | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 694 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 695 | Anne Arundel | Gambrills | Verizon Maryland, Inc. | Landline |
| (410) 696 | Harford | Bel Air | Mcimetro, Ats, Inc. | Landline |
| (410) 697 | Anne Arundel | Millersville | Mcimetro, Ats, Inc. | Landline |
| (410) 698 | Baltimore | Fork | Mcimetro, Ats, Inc. | Landline |
| (410) 699 | Queen Annes | Church Hill | Sprint Spectrum L.p. | Wireless |
| (410) 701 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 702 | Baltimore | Glyndon | Mcimetro, Ats, Inc. | Landline |
| (410) 703 | Anne Arundel | West River | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 704 | Baltimore | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 705 | Prince Georges | Laurel | Verizon Maryland, Inc. | Landline |
| (410) 706 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 707 | Howard | Columbia | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 708 | Kent | Galena | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 709 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 710 | Baltimore City | Baltimore | Omnipoint Communications Cap Operations, Llc | Wireless |
| (410) 712 | Howard | Elkridge | Verizon Maryland, Inc. | Landline |
| (410) 713 | Wicomico | Salisbury | Level 3 Communications, Llc - Md | Landline |
| (410) 714 | Caroline | Preston | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 715 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 716 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 717 | Anne Arundel | Laurel | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 718 | Howard | Columbia | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 719 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 720 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 721 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 722 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 723 | Worcester | Ocean City | Verizon Maryland, Inc. | Landline |
| (410) 724 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 725 | Talbot | Easton | Sprint Spectrum L.p. | Wireless |
| (410) 726 | Wicomico | Fruitland | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 727 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 728 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 729 | Anne Arundel | Crownsville | Verizon Maryland, Inc. | Landline |
| (410) 730 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 731 | Anne Arundel | Annapolis | Usa Mobility Wireless, Inc. | Wireless |
| (410) 732 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 733 | Baltimore | Lutherville Timonium | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 734 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 735 | Baltimore City | Baltimore | Cavalier East Llc - Md | Landline |
| (410) 736 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 737 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 738 | Prince Georges | Laurel | Verizon Maryland, Inc. | Wireless |
| (410) 739 | Queen Annes | Centreville | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 740 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 741 | Prince Georges | Bowie | Verizon Maryland, Inc. | Landline |
| (410) 742 | Worcester | Eden | Verizon Maryland, Inc. | Landline |
| (410) 743 | Baltimore City | Baltimore | Usa Mobility Wireless, Inc. | Wireless |
| (410) 744 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 745 | Talbot | Bozman | Verizon Maryland, Inc. | Landline |
| (410) 746 | Baltimore | Pikesville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 747 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 748 | Howard | Ellicott City | Usa Mobility Wireless, Inc. | Landline |
| (410) 749 | Wicomico | Delmar | Verizon Maryland, Inc. | Landline |
| (410) 750 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 751 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 752 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 753 | Baltimore | Owings Mills | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 754 | Caroline | Federalsburg | Verizon Maryland, Inc. | Landline |
| (410) 755 | Cecil | Cecilton | Verizon Maryland, Inc. | Landline |
| (410) 756 | Carroll | Keymar | Verizon Maryland, Inc. | Landline |
| (410) 757 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 758 | Queen Annes | Centreville | Verizon Maryland, Inc. | Landline |
| (410) 759 | Anne Arundel | Curtis Bay | Verizon Maryland, Inc. | Wireless |
| (410) 760 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 761 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 762 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 763 | Talbot | Cordova | Verizon Maryland, Inc. | Landline |
| (410) 764 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 765 | Anne Arundel | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 766 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 767 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 768 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 769 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 770 | Talbot | Cordova | Verizon Maryland, Inc. | Landline |
| (410) 771 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 772 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 773 | Baltimore | Sparks Glencoe | Verizon Maryland, Inc. | Landline |
| (410) 774 | Anne Arundel | Crofton | Mcimetro, Ats, Inc. | Landline |
| (410) 775 | Carroll | Keymar | Verizon Maryland, Inc. | Landline |
| (410) 776 | Harford | Edgewood | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 777 | Anne Arundel | Severna Park | Mcimetro, Ats, Inc. | Landline |
| (410) 778 | Kent | Chestertown | Verizon Maryland, Inc. | Landline |
| (410) 779 | Baltimore City | Baltimore | Winstar Communications, Llc - Md | Landline |
| (410) 780 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 781 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 782 | Anne Arundel | Hanover | Verizon Maryland, Inc. | Landline |
| (410) 783 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 784 | Somerset | Deal Island | Verizon Maryland, Inc. | Landline |
| (410) 785 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 786 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 787 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 788 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 789 | Baltimore City | Brooklyn | Verizon Maryland, Inc. | Landline |
| (410) 790 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 791 | Prince Georges | Laurel | Verizon Maryland, Inc. | Wireless |
| (410) 792 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 793 | Anne Arundel | Crofton | Verizon Maryland, Inc. | Landline |
| (410) 794 | Anne Arundel | Laurel | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 795 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 796 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 797 | Anne Arundel | Laurel | Verizon Maryland, Inc. | Landline |
| (410) 798 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 799 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 800 | Baltimore City | Baltimore | Nationsline, Inc.-md | Landline |
| (410) 801 | Howard | Ellicott City | Verizon Maryland, Inc. | Wireless |
| (410) 802 | Howard | Elkridge | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 803 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 804 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 805 | Baltimore City | Baltimore | Usa Mobility Wireless, Inc. | Wireless |
| (410) 806 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 807 | Anne Arundel | Laurel | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 808 | Howard | Glenwood | Nextel Communications, Inc. | Wireless |
| (410) 809 | Harford | Bel Air | Cavalier Telephone, Llc (mid-atlantic) - Md | Landline |
| (410) 810 | Kent | Chestertown | Verizon Maryland, Inc. | Landline |
| (410) 812 | Baltimore | Towson | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 813 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 814 | Baltimore City | Baltimore | Cavalier Telephone Mid-atlantic. Llc - Md | Landline |
| (410) 815 | Prince Georges | Laurel | Verizon Maryland, Inc. | Wireless |
| (410) 816 | Baltimore | Towson | Verizon Maryland, Inc. | Wireless |
| (410) 817 | Baltimore | Baldwin | Verizon Maryland, Inc. | Landline |
| (410) 818 | Baltimore | Windsor Mill | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 819 | Talbot | Cordova | Verizon Maryland, Inc. | Landline |
| (410) 820 | Talbot | Cordova | Verizon Maryland, Inc. | Landline |
| (410) 821 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 822 | Talbot | Cordova | Verizon Maryland, Inc. | Landline |
| (410) 823 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 824 | Anne Arundel | Laurel | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 825 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 826 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Wireless |
| (410) 827 | Queen Annes | Grasonville | Verizon Maryland, Inc. | Landline |
| (410) 828 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 829 | Talbot | Easton | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 830 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 831 | Carroll | Union Bridge | Wireless | |
| (410) 832 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 833 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 834 | Cecil | Conowingo | Verizon Maryland, Inc. | Landline |
| (410) 835 | Wicomico | Parsonsburg | Verizon Maryland, Inc. | Landline |
| (410) 836 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 837 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 838 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 839 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 840 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 841 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 842 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 843 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 844 | Baltimore City | Baltimore | Landline | |
| (410) 845 | Wicomico | Salisbury | Sprint Spectrum L.p. | Wireless |
| (410) 846 | Dorchester | Cambridge | Mcimetro, Ats, Inc. | Landline |
| (410) 847 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 848 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 849 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 850 | Anne Arundel | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 851 | Baltimore | Towson | Verizon Maryland, Inc. | Wireless |
| (410) 852 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 853 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 854 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 855 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 856 | Prince Georges | Laurel | Verizon Maryland, Inc. | Landline |
| (410) 857 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 858 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 859 | Anne Arundel | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 860 | Wicomico | Delmar | Verizon Maryland, Inc. | Landline |
| (410) 861 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 862 | Howard | Laurel | Verizon Maryland, Inc. | Landline |
| (410) 863 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 864 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 865 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 866 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 867 | Anne Arundel | Churchton | Verizon Maryland, Inc. | Landline |
| (410) 868 | Baltimore City | Baltimore | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 869 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 870 | Baltimore | Parkville | Comcast Phone Of Northern Maryland, Inc. - Md | Landline |
| (410) 871 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 872 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 873 | Wicomico | Bivalve | Verizon Maryland, Inc. | Landline |
| (410) 874 | Anne Arundel | Odenton | Mcimetro, Ats, Inc. | Landline |
| (410) 875 | Frederick | Mount Airy | Verizon Maryland, Inc. | Landline |
| (410) 876 | Carroll | Finksburg | Verizon Maryland, Inc. | Landline |
| (410) 877 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 878 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 879 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 880 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 881 | Cecil | Chesapeake City | Mcimetro, Ats, Inc. | Landline |
| (410) 882 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 883 | Wicomico | Delmar | Verizon Maryland, Inc. | Landline |
| (410) 884 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 885 | Cecil | Chesapeake City | Verizon Maryland, Inc. | Landline |
| (410) 886 | Talbot | Sherwood | Verizon Maryland, Inc. | Landline |
| (410) 887 | Baltimore | Catonsville | Verizon Maryland, Inc. | Landline |
| (410) 888 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 889 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 890 | Baltimore | Randallstown | Usa Mobility Wireless, Inc. | Wireless |
| (410) 891 | Baltimore | Hunt Valley | Mci Worldcom Communications, Inc. - Md | Landline |
| (410) 892 | Anne Arundel | Baltimore | Verizon Maryland, Inc. | Wireless |
| (410) 893 | Harford | Bel Air | Verizon Maryland, Inc. | Landline |
| (410) 894 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 895 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 896 | Wicomico | Delmar | Verizon Maryland, Inc. | Landline |
| (410) 897 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 898 | Prince Georges | Bowie | Verizon Maryland, Inc. | Landline |
| (410) 899 | Baltimore | Towson | Usa Mobility Wireless, Inc. | Wireless |
| (410) 900 | Baltimore City | Baltimore | Ctc Communications - Md | Landline |
| (410) 901 | Dorchester | Cambridge | Verizon Maryland, Inc. | Landline |
| (410) 902 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 903 | Anne Arundel | Glen Burnie | Sprint Spectrum L.p. | Wireless |
| (410) 904 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 905 | Baltimore | White Marsh | Sprint Spectrum L.p. | Wireless |
| (410) 906 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 907 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 908 | Baltimore | Owings Mills | Sprint Spectrum L.p. | Wireless |
| (410) 909 | Howard | Elkridge | Usa Mobility Wireless, Inc. | Wireless |
| (410) 910 | Howard | Columbia | Mcimetro, Ats, Inc. | Landline |
| (410) 912 | Wicomico | Fruitland | Cavalier Telephone, Llc (mid-atlantic) - Md | Landline |
| (410) 913 | Carroll | Sykesville | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 914 | Harford | Churchville | Cavalier Telephone, Llc (mid-atlantic) - Md | Landline |
| (410) 915 | Baltimore City | Baltimore | Baltimore-washington Telephone Bwt | Landline |
| (410) 916 | Baltimore | Owings Mills | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 917 | Howard | Columbia | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 918 | Baltimore | Essex | Verizon Maryland, Inc. | Landline |
| (410) 919 | Anne Arundel | Annapolis | Mcimetro, Ats, Inc. | Landline |
| (410) 920 | Cecil | Elkton | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 921 | Prince Georges | Laurel | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 922 | Baltimore | Owings Mills | Verizon Maryland, Inc. | Landline |
| (410) 923 | Anne Arundel | Crownsville | Verizon Maryland, Inc. | Landline |
| (410) 924 | Caroline | Denton | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 925 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 926 | Baltimore | Catonsville | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 927 | Prince Georges | Hyattsville | Tw Telecom Of Maryland Llc - Md | Landline |
| (410) 928 | Kent | Chestertown | Verizon Maryland, Inc. | Landline |
| (410) 929 | Baltimore | Hunt Valley | Bandwidth.com Clec, Llc - Md | N/A |
| (410) 930 | Baltimore City | Baltimore | Redi-call Communications Co | Wireless |
| (410) 931 | Baltimore | Nottingham | Verizon Maryland, Inc. | Landline |
| (410) 932 | Cecil | North East | Usa Mobility Wireless, Inc. | Wireless |
| (410) 933 | Baltimore | Nottingham | Verizon Maryland, Inc. | Landline |
| (410) 934 | Howard | Laurel | Verizon Maryland, Inc. | Wireless |
| (410) 935 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 936 | Baltimore City | Baltimore | Landline | |
| (410) 937 | Harford | Fallston | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 938 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 939 | Cecil | Conowingo | Verizon Maryland, Inc. | Landline |
| (410) 940 | Anne Arundel | Annapolis | Atx Telecommunications Services, Ltd | Landline |
| (410) 941 | Harford | Pylesville | Verizon Maryland, Inc. | Landline |
| (410) 942 | Harford | Havre De Grace | Verizon Maryland, Inc. | Landline |
| (410) 943 | Dorchester | East New Market | Verizon Maryland, Inc. | Landline |
| (410) 944 | Baltimore | Gwynn Oak | Verizon Maryland, Inc. | Landline |
| (410) 945 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 946 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 947 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 948 | Baltimore | Catonsville | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 949 | Baltimore City | Baltimore | Mcimetro, Ats, Inc. | Landline |
| (410) 951 | Baltimore City | Baltimore | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 952 | Baltimore | Reisterstown | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 953 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 954 | Baltimore City | Baltimore | Landline | |
| (410) 955 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 956 | Anne Arundel | Davidsonville | Verizon Maryland, Inc. | Landline |
| (410) 957 | Somerset | Marion Station | Verizon Maryland, Inc. | Landline |
| (410) 960 | Harford | Forest Hill | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 961 | Baltimore City | Baltimore | Sprint Spectrum L.p. | Wireless |
| (410) 962 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 963 | Baltimore City | Baltimore | Sprint Spectrum L.p. | Wireless |
| (410) 964 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 965 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 966 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 967 | Baltimore | Pikesville | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 968 | Somerset | Crisfield | Verizon Maryland, Inc. | Landline |
| (410) 969 | Anne Arundel | Glen Burnie | Verizon Maryland, Inc. | Landline |
| (410) 970 | Anne Arundel | Annapolis | Mcimetro, Ats, Inc. | Landline |
| (410) 971 | Harford | Belcamp | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 972 | Anne Arundel | Annapolis | Teleport Communications Group America, Inc. - Md | Landline |
| (410) 973 | Baltimore City | Baltimore | Aquis Communications, Inc. | N/A |
| (410) 974 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 975 | Anne Arundel | Arnold | Verizon Maryland, Inc. | Landline |
| (410) 976 | Baltimore City | Baltimore | Landline | |
| (410) 977 | Harford | Bel Air | Nextel Communications, Inc. | Wireless |
| (410) 978 | Baltimore | Gwynn Oak | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 979 | Baltimore | Lutherville Timonium | New Cingular Wireless Pcs, Llc - Dc | Wireless |
| (410) 980 | Anne Arundel | Annapolis | Global Naps South, Inc. - Md | Landline |
| (410) 981 | Anne Arundel | Linthicum Heights | Verizon Maryland, Inc. | Landline |
| (410) 982 | Baltimore City | Baltimore | Quantum Telecommunications, Inc. - Md | Landline |
| (410) 983 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 984 | Carroll | Sykesville | Nextel Communications, Inc. | Wireless |
| (410) 985 | Howard | Annapolis Junction | Baltimore-washington Telephone Bwt | Landline |
| (410) 986 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 987 | Anne Arundel | Crownsville | Verizon Maryland, Inc. | Landline |
| (410) 988 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 989 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 990 | Anne Arundel | Annapolis | Verizon Maryland, Inc. | Landline |
| (410) 991 | Anne Arundel | Arnold | Cellco Partnership Dba Verizon Wireless - Md | Wireless |
| (410) 992 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 993 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 994 | Harford | Aberdeen | Verizon Maryland, Inc. | Landline |
| (410) 995 | Howard | Columbia | Verizon Maryland, Inc. | Landline |
| (410) 996 | Cecil | Elkton | Verizon Maryland, Inc. | Landline |
| (410) 997 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 998 | Baltimore City | Baltimore | Verizon Maryland, Inc. | Landline |
| (410) 999 | Baltimore City | Baltimore | Baltimore-washington Telephone Bwt | Landline |
Want to Know more about area code 410?
3,788,604
Total Number of Phone Numbers with +1-4102,103,768
Total Number of Owners with +1-4102,505
Total Number of carriers in the area code208
Total Number of cities in the area code90/10
% of Landline vs Wireless phone numbersN/A
Average Age$84,999
Medium Home value$37,593
Median Income620,961
Total population1.06%
Crime RateCounties that Use Area Code 410
Howard
Calvert
Anne Arundel
Caroline
Harford
Baltimore
Queen Annes
Worcester
Kent
Wicomico
Dorchester
Cecil
Talbot
Somerset
Carroll
Current time in 203 Area Code
8:36 AM on Apr 23, 2024
The 410 area code lies within the Pacific Daylight Time Zone (or PDT)