Area Code Info

240 Area Code

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Maryland Area Codes Map

Area Code Information

Area Code: 240
State: Maryland
Primary City: Germantown
Timezone: Eastern
State Code:

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Area code 240 was first put in service June 1, 1997. Currently, the largest city it serves is Germantown, MD, and it overlaps coverage areas with area codes 227 and 301.

Heavily Reported Numbers

Active Phone Number Prefixes

Prefix Usage Primary City Carrier Introduced
240200 Landline BRENTWOOD Bandwidth.com Clec 10/04/2010
240201 Landline RIDGE Peerless Network Of The District Of Columbia, Dc 07/22/1999
240203 Wireless HAGERSTOWN Sprint Spectrum L.p. 10/04/2011
240204 Wireless CHEVY CHASE Cellco Partnership DBA Verizon Wireless 09/07/2011
240205 Wireless ROCKVILLE New Cingular Wireless PCS - DC 07/23/2003
240206 Landline BOWIE Xo Maryland 10/31/2001
240207 Landline CLARKSBURG Cavalier East LLC 08/20/2000
240208 Landline PORT TOBACCO Peerless Network Of The District Of Columbia, Dc 07/22/1999
240209 Landline INDIAN HEAD Peerless Network Of The District Of Columbia, Dc 07/22/1999
240210 Wireless WALDORF New Cingular Wireless PCS - DC 08/20/2000
240212 Landline OAKLAND Core Communications 06/13/2000
240213 Landline WALDORF Peerless Network Of The District Of Columbia, Dc 07/22/1999
240214 Landline MECHANICSVILLE Peerless Network Of The District Of Columbia, Dc 07/22/1999
240215 Landline FREDERICK Telcove Operations 01/14/2000
240216 Wireless WALDORF Sprint Spectrum L.p. 03/15/2001
240217 Wireless HAGERSTOWN Omnipoint Communications Cap Operations 04/16/2001
240218 Landline NANJEMOY Peerless Network Of The District Of Columbia, Dc 02/27/1999
240219 FAULKNER
240220 Landline POOLESVILLE Peerless Network Of Maryland 02/27/1999
240221 Landline ROCKVILLE Verizon Maryland 05/10/1999
240222 Landline WALDORF Cavalier Telephone Mid-atlantic 08/20/2000
240223 Landline BETHESDA Allegiance Telecom 02/27/1999
240224 Wireless TEMPLE HILLS Cellco Partnership DBA Verizon Wireless 09/10/2012
240225 Landline FREDERICK Core Communications 06/13/2000
240228 Landline LAUREL Verizon Maryland 11/20/1998
240229 Landline WALDORF Broadwing Communications. LLC 07/22/1999
240230 Landline HUGHESVILLE Global Crossing Local Services-md 05/10/1999
240231 Landline HAGERSTOWN Core Communications 06/13/2000
240232 Landline BRENTWOOD Broadwing Communications. LLC 07/22/1999
240233 Landline FAULKNER Teleport Communications America - DC 02/27/1999
240234 Wireless CLARKSBURG Cellco Partnership DBA Verizon Wireless 10/04/2011
240235 Landline CHEVY CHASE Paetec Communications 10/13/1999
240236 Landline FREDERICK Verizon Maryland 06/13/2000
240237 Landline GREAT MILLS Teleport Communications America - DC 02/27/1999
240238 Landline ROCKVILLE Paetec Communications 10/13/1999
240239 Landline LEONARDTOWN Core Communications 10/31/2000
240241 Landline GREENBELT Starpower Communications 02/27/1999
240242 Landline SILVER SPRING Starpower Communications 02/27/1999
240243 Landline GAITHERSBURG Allegiance Telecom 01/14/2000
240244 Landline ANDREWS AIR FORCE BASE Starpower Communications 02/27/1999
240245 Landline BOWIE Starpower Communications 02/27/1999
240246 Landline GAITHERSBURG Starpower Communications 11/20/1998
240247 Landline SILVER SPRING Allegiance Telecom 02/27/1999
240248 Landline RIDGE Peerless Network Of Maryland 02/27/1999
240249 Landline MECHANICSVILLE Teleport Communications America - DC 02/27/1999
240250 Landline BRANDYWINE Peerless Network Of Maryland 02/27/1999
240251 Landline CASCADE Core Communications 06/13/2000
240252 Landline GAITHERSBURG Level 3 Communications 05/10/1999
240253 Landline TEMPLE HILLS Global Crossing Local Services-md 02/27/1999
240254 Landline HUGHESVILLE Teleport Communications America - DC 02/27/1999
240255 Landline POOLESVILLE Peerless Network Of Maryland 07/22/1999
240256 Landline LEONARDTOWN Teleport Communications America - DC 02/27/1999
240257 Landline NANJEMOY Teleport Communications America - DC 02/27/1999
240258 Landline RIDGE Teleport Communications America - DC 02/27/1999
240260 Landline BRENTWOOD Allegiance Telecom 06/13/2000
240261 SHADY SIDE
240262 Wireless CLARKSBURG Sprint Spectrum L.p. 10/17/2011
240263 Wireless CLARKSBURG Sprint Spectrum L.p. 11/10/2011
240264 Landline LAUREL Verizon Maryland 02/27/1999
240265 Wireless UPPER MARLBORO Sprint Spectrum L.p. 11/10/2011
240266 Landline BOWIE Peerless Network Of Maryland 02/27/1999
240267 UPPER MARLBORO
240268 Landline BRENTWOOD Allegiance Telecom 02/27/1999
240269 Landline ANDREWS AIR FORCE BASE Peerless Network Of Maryland 02/27/1999
240270 Wireless BOWIE Cellco Partnership DBA Verizon Wireless 11/07/2011
240271 Wireless SILVER SPRING New Cingular Wireless PCS - DC 02/27/1999
240272 Wireless BOWIE Sprint Spectrum L.p. 11/10/2011
240273 Landline BRENTWOOD Broadwing Communications. LLC 07/22/1999
240274 Wireless CHEVY CHASE New Cingular Wireless PCS - DC 02/27/1999
240275 Landline GRANTSVILLE Core Communications 10/31/2000
240276 Landline ROCKVILLE Verizon Maryland 05/04/2004
240277 Wireless CHEVY CHASE Sprint Spectrum L.p. 10/18/2002
240278 Wireless LAUREL Cellco Partnership DBA Verizon Wireless 07/08/2011
240279 Landline WALDORF Core Communications 10/31/2000
240280 Landline ELKRIDGE Comcast Phone Of Northern Maryland 03/03/2001
240281 Wireless CHEVY CHASE New Cingular Wireless PCS - DC 10/13/1999
240282 Landline MECHANICSVILLE Peerless Network Of Maryland 02/27/1999
240283 Landline SILVER SPRING Paetec Communications 10/13/1999
240284 Landline FROSTBURG Level 3 Communications 11/01/2004
240285 Landline FREDERICK Cellco Partnership DBA Verizon Wireless 06/13/2000
240286 Wireless CHEVY CHASE Sprint Spectrum L.p. 09/17/2002
240287 Landline HANCOCK Core Communications 06/13/2000
240288 Landline THURMONT Comcast Phone Of Northern Maryland 11/01/2004
240289 Landline TEMPLE HILLS Cavalier Telephone Mid-atlantic 08/20/2000
240290 Landline BRENTWOOD Allegiance Telecom 02/27/1999
240291 Wireless HAGERSTOWN New Cingular Wireless PCS - DC 10/15/2002
240292 Landline KENSINGTON Verizon Maryland 10/13/1999
240293 Landline ROCKVILLE Starpower Communications 02/27/1999
240294 Landline LAUREL Xo Maryland 06/30/2001
240295 Landline LAUREL Cavalier Telephone Mid-atlantic 08/20/2000
240296 Landline BRENTWOOD Cavalier Telephone Mid-atlantic 08/20/2000
240297 Landline GREENBELT Level 3 Communications 10/13/1999
240298 Wireless LEONARDTOWN Cellco Partnership DBA Verizon Wireless 10/13/1999
240299 Wireless WALDORF Sprint Spectrum L.p. 10/13/1999
240300 Wireless WALDORF Cellco Partnership DBA Verizon Wireless 12/07/2010
240303 Landline ANDREWS AIR FORCE BASE Cavalier Telephone Mid-atlantic 08/20/2000
240304 Wireless DISTRICT HEIGHTS Sprint Spectrum L.p. 07/03/2002
240305 Wireless CLINTON Sprint Spectrum L.p. 02/27/1999
240306 Landline GAITHERSBURG Allegiance Telecom 06/13/2000
240307 Landline EMMITSBURG AT&T Local 03/27/2003
240308 Wireless CLARKSBURG New Cingular Wireless PCS - DC 08/20/2000
240309 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 09/10/2012
240310 Wireless HAGERSTOWN Uscoc Of Cumberland DBA United States Cel Md 02/27/1999
240312 Landline DISTRICT HEIGHTS Cavalier Telephone Mid-atlantic 08/20/2000
240313 Landline HAGERSTOWN Verizon Maryland 10/31/2000
240314 Landline ROCKVILLE Verizon Maryland 06/13/2000
240315 Landline FREDERICK Verizon Maryland 08/20/2000
240316 Wireless BETHESDA Sprint Spectrum L.p.
240317 Landline GREAT MILLS Starpower Communications 11/20/1998
240318 Landline ANDREWS AIR FORCE BASE Verizon Maryland 01/14/2000
240319 Wireless COLUMBIA Cellco Partnership DBA Verizon Wireless 06/06/2008
240320 Landline WALDORF Cavalier East LLC 10/31/2000
240321 Wireless OAKLAND Uscoc Of Cumberland DBA United States Cel Md 02/27/1999
240322 Landline WESTERNPORT Core Communications 10/31/2000
240323 Landline EMMITSBURG Core Communications 10/31/2000
240324 Landline HIGHLAND Ymax Communications Corp. 10/08/2008
240325 Landline CLARKSBURG Core Communications 10/31/2000
240326 Landline UPPER MARLBORO Cavalier Telephone Mid-atlantic 08/20/2000
240327 Landline GAITHERSBURG Core Communications 10/31/2000
240328 Landline ROCKVILLE Verizon Maryland 08/20/2000
240329 Landline HAGERSTOWN Level 3 Communications 10/31/2000
240330 Wireless GLEN ECHO Sprint Spectrum L.p. 12/14/2007
240331 Landline SILVER SPRING Peerless Network Of Maryland 02/27/1999
240332 Landline FAULKNER Peerless Network Of Maryland 02/27/1999
240333 Landline CHEVY CHASE Cavalier East LLC 05/09/2001
240334 Landline BOWIE Global Crossing Local Services-md 02/27/1999
240335 Landline BOWIE Cavalier Telephone Mid-atlantic 08/20/2000
240336 Landline CHEVY CHASE Core Communications 10/31/2000
240337 Landline DISTRICT HEIGHTS Peerless Network Of Maryland 02/27/1999
240338 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 01/14/2000
240339 Landline UPPER MARLBORO Cavalier East LLC 10/31/2000
240340 Wireless CHEVY CHASE Sprint Spectrum L.p. 08/18/2011
240341 Landline FREDERICK Mci Worldcom Communications 02/25/2009
240342 Landline ASHTON Starpower Communications 11/20/1998
240343 Wireless HANCOCK Cellco Partnership DBA Verizon Wireless 05/10/2011
240344 Wireless FREDERICK New Cingular Wireless PCS - DC 10/15/2002
240345 Landline SANDY SPRING Level 3 Communications 03/09/2006
240346 Wireless WALDORF Sprint Spectrum L.p. 08/20/2000
240347 Landline HAGERSTOWN Bandwidth.com Clec 08/04/2008
240348 Landline ANDREWS AIR FORCE BASE Level 3 Communications 08/20/2000
240349 Landline PORT TOBACCO Global Crossing Local Services-md 05/10/1999
240350 Wireless BETHESDA Sprint Spectrum L.p. 05/10/1999
240351 Wireless FREDERICK Sprint Spectrum L.p. 05/10/1999
240352 Landline PORT TOBACCO Peerless Network Of Maryland 02/27/1999
240353 Wireless LAUREL Sprint Spectrum L.p. 05/10/1999
240354 Wireless BETHESDA Sprint Spectrum L.p. 05/10/1999
240355 Wireless LAUREL Sprint Spectrum L.p. 05/10/1999
240356 Landline FREDERICK Level 3 Communications 03/03/2001
240357 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 06/12/2006
240358 Landline CLARKSBURG Peerless Network Of Maryland 02/27/1999
240359 Landline INDIAN HEAD Peerless Network Of Maryland 02/27/1999
240360 Wireless Omnipoint Communications Cap Operations 09/17/2013
240361 Landline GAITHERSBURG Cavalier Telephone Mid-atlantic 08/20/2000
240362 Landline CUMBERLAND Verizon Maryland 02/27/1999
240363 Landline SILVER SPRING Global Naps South 02/27/1999
240364 Landline GAITHERSBURG Cavalier East LLC 05/09/2001
240365 Landline CLARKSBURG Baltimore-washington Telephone (bwt) 08/20/2000
240366 Landline WILLIAMSPORT AT&T Local 03/03/2001
240367 Wireless FREDERICK Sprint Spectrum L.p. 10/18/2002
240368 Landline ROCKVILLE Peerless Network Of Maryland 02/27/1999
240369 Landline MOUNT AIRY Core Communications 10/31/2000
240370 Wireless CHEVY CHASE Sprint Spectrum L.p. 12/14/2007
240371 Landline ROCKVILLE Peerless Network Of Maryland 02/27/1999
240372 Wireless POTOMAC Sprint Spectrum L.p. 10/13/1999
240373 Landline ODENTON Verizon Maryland 11/20/1998
240374 Landline LAUREL Global Crossing Local Services-md 02/27/1999
240375 Wireless WALDORF Sprint Spectrum L.p. 11/20/1998
240376 Landline HUGHESVILLE Peerless Network Of Maryland 02/27/1999
240377 Landline INDIAN HEAD Global Crossing Local Services-md 05/10/1999
240378 Landline CUMBERLAND Core Communications 10/31/2000
240379 Landline FREDERICK Verizon Maryland 03/03/2001
240380 Wireless GLEN ECHO Cellco Partnership DBA Verizon Wireless 09/17/2007
240381 Wireless UPPER MARLBORO New Cingular Wireless PCS - DC 01/14/2000
240382 Landline HAGERSTOWN Teleport Communications America 06/11/2009
240383 Wireless ROCKVILLE New Cingular Wireless PCS - DC 08/20/2000
240384 Landline GREAT MILLS Peerless Network Of Maryland 02/27/1999
240385 Landline MYERSVILLE Verizon Maryland 10/31/2000
240386 Landline ROCKVILLE Verizon Maryland 08/20/2000
240387 Landline SILVER SPRING Cavalier East LLC 01/14/2000
240388 Wireless GAITHERSBURG Sprint Spectrum L.p. 11/04/2002
240389 Landline ASHTON Atx Telecommunications Services, Ltd 06/30/2001
240390 Landline ASHTON Cavalier Telephone Mid-atlantic 08/20/2000
240391 Landline GREENBELT Global Crossing Local Services-md 02/27/1999
240392 Landline DISTRICT HEIGHTS Starpower Communications 02/27/1999
240393 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 06/13/2000
240394 Wireless MOUNT AIRY New Cingular Wireless PCS - DC 12/13/2004
240395 Landline CHEVY CHASE Cavalier Telephone Mid-atlantic 08/20/2000
240396 Landline CHEVY CHASE Global Crossing Local Services-md 02/27/1999
240397 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 03/06/2009
240398 Wireless SILVER SPRING Sprint Spectrum L.p. 07/03/2002
240399 Landline ROCKVILLE Xo Maryland 10/13/1999
240400 Wireless CHEVY CHASE Sprint Spectrum L.p. 08/18/2011
240401 Wireless GERMANTOWN New Cingular Wireless PCS - DC 11/20/1998
240402 Landline GREENBELT Mci Worldcom Communications 09/21/2010
240403 Landline ROCKVILLE Cavalier Telephone Mid-atlantic 08/20/2000
240404 Landline GAITHERSBURG Xo Maryland 02/13/2001
240405 Landline FREDERICK Us Lec Of Maryland 07/27/2004
240406 Wireless ROCKVILLE Leap Wireless Intl DBA Cricket Comm 09/17/2009
240407 Landline ANDREWS AIR FORCE BASE Global Crossing Local Services-md 02/27/1999
240408 Wireless ROCKVILLE Leap Wireless Intl DBA Cricket Comm 10/14/2009
240409 Wireless FREDERICK New Cingular Wireless PCS - DC 02/27/1999
240412 Wireless PORT TOBACCO Sprint Spectrum L.p. 01/16/2001
240413 Wireless BRENTWOOD Omnipoint Communications Cap Operations 03/12/2001
240414 Landline TEMPLE HILLS Peerless Network Of Maryland 02/27/1999
240415 Landline FREDERICK Ymax Communications Corp. 12/16/2008
240416 Wireless WALDORF New Cingular Wireless PCS - DC 05/18/2001
240417 Wireless DISTRICT HEIGHTS Sprint Spectrum L.p. 03/03/2001
240418 Wireless LAUREL Sprint Spectrum L.p. 11/12/2001
240419 Wireless WALDORF Cellco Partnership DBA Verizon Wireless 10/29/2007
240420 Landline HAGERSTOWN Verizon Maryland 07/22/1999
240421 Wireless ROCKVILLE Omnipoint Communications Cap Operations 04/09/2001
240422 Wireless FREDERICK Omnipoint Communications Cap Operations 05/15/2002
240423 Wireless SILVER SPRING Omnipoint Communications Cap Operations 05/21/2001
240424 Wireless BRENTWOOD Sprint Spectrum L.p. 11/16/2007
240425 Landline CHEVY CHASE Dslnet Communications Va 01/25/2001
240426 Wireless CHEVY CHASE Sprint Spectrum L.p. 10/25/2001
240427 Landline WALDORF Xo Maryland 04/23/2001
240428 Landline ROCKVILLE Bandwidth.com Clec 10/14/2009
240429 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 12/19/2006
240430 Landline SILVER SPRING Cavalier Telephone Mid-atlantic 08/20/2000
240431 Wireless GREAT MILLS Sprint Spectrum L.p. 10/31/2000
240432 Wireless LAUREL Sprint Spectrum L.p. 02/27/1999
240433 Landline ROCKVILLE Cavalier Telephone Mid-atlantic 08/20/2000
240434 Landline LEONARDTOWN Broadwing Communications. LLC 10/31/2000
240435 Wireless WALDORF Cellco Partnership DBA Verizon Wireless 05/07/2009
240436 Landline IJAMSVILLE Telcove Operations 08/20/2000
240437 Landline ASHTON Xo Maryland 06/30/2001
240438 Wireless SILVER SPRING Sprint Spectrum L.p. 08/15/2011
240439 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 06/06/2008
240440 Wireless FREDERICK Leap Wireless Intl DBA Cricket Comm 02/27/2009
240441 Wireless TEMPLE HILLS Omnipoint Communications Cap Operations 06/06/2001
240442 Landline OAKLAND Verizon Maryland 05/22/2001
240444 Wireless LAUREL Cellco Partnership DBA Verizon Wireless 09/07/2011
240445 Wireless CHEVY CHASE Sprint Spectrum L.p. 11/10/2011
240446 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 08/09/2001
240447 Wireless LAUREL New Cingular Wireless PCS - DC 02/27/1999
240448 Wireless WALDORF Sprint Spectrum L.p. 09/07/2011
240449 Wireless GAITHERSBURG New Cingular Wireless PCS - DC 03/03/2001
240450 Landline SILVER SPRING Cavalier Telephone Mid-atlantic 08/20/2000
240452 Landline HAGERSTOWN Lumos Networks Inc. - VA 07/22/2010
240453 Landline ROCKVILLE Verizon Maryland 11/20/1998
240454 Wireless GAITHERSBURG Paetec Communications 04/22/2005
240455 Landline DISTRICT HEIGHTS Paetec Communications 06/20/2001
240456 Landline LAUREL Verizon Maryland 08/20/2000
240457 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 09/04/2008
240458 Wireless WALDORF Cellco Partnership DBA Verizon Wireless 10/04/2011
240459 Wireless LAUREL Cellco Partnership DBA Verizon Wireless 07/27/2010
240460 Wireless SILVER SPRING New Cingular Wireless PCS - DC 07/22/1999
240461 Wireless SILVER SPRING New Cingular Wireless PCS - DC 07/22/1999
240462 Wireless ANDREWS AIR FORCE BASE Sprint Spectrum L.p. 02/27/1999
240463 Wireless SILVER SPRING New Cingular Wireless PCS - DC 02/27/1999
240464 Landline CHEVY CHASE Sprint Spectrum L.p. 05/10/1999
240465 Landline CHEVY CHASE Peerless Network Of Maryland 02/27/1999
240466 Wireless MECHANICSVILLE New Cingular Wireless PCS - DC 10/31/2001
240467 Landline FORT WASHINGTON Comcast Phone Of Northern Maryland 04/25/2013
240468 Wireless BRENTWOOD Sprint Spectrum L.p. 11/16/2007
240469 Wireless HAGERSTOWN Sprint Spectrum L.p. 02/14/2008
240470 Wireless LAUREL Cellco Partnership DBA Verizon Wireless 10/04/2011
240471 Landline ROCKVILLE Global Crossing Local Services-md 02/27/1999
240472 Wireless SILVER SPRING New Cingular Wireless PCS - DC 08/20/2000
240473 Landline GREENBELT Cavalier Telephone Mid-atlantic 08/20/2000
240475 Wireless SILVER SPRING New Cingular Wireless PCS - DC 08/20/2000
240476 Wireless SILVER SPRING Omnipoint Communications Cap Operations 02/21/2001
240477 Landline GAITHERSBURG Lightwave Communications 05/20/2005
240478 Wireless SILVER SPRING New Cingular Wireless PCS - DC 07/27/2004
240479 Wireless FORT WASHINGTON Cellco Partnership DBA Verizon Wireless 04/07/2008
240480 Wireless CHEVY CHASE Sprint Spectrum L.p. 09/27/2010
240481 Wireless SILVER SPRING Omnipoint Communications Cap Operations 05/11/2001
240482 Landline CHEVY CHASE Us Lec Of Maryland 01/14/2000
240483 Landline CHEVY CHASE Comcast Phone Of Northern Maryland 10/31/2001
240485 Landline SILVER SPRING Us Lec Of Maryland 01/14/2000
240486 Wireless BOWIE Omnipoint Communications Cap Operations 03/12/2001
240487 Landline BRENTWOOD Us Lec Of Maryland 01/14/2000
240488 Landline OAKLAND Shentel Communications 05/16/2012
240489 Landline POOLESVILLE Xo Maryland 02/13/2001
240490 Wireless MIDDLETOWN Omnipoint Communications Cap Operations 06/12/2001
240491 Landline SILVER SPRING Global Crossing Local Services-md 02/27/1999
240492 Landline DISTRICT HEIGHTS Us Lec Of Maryland 01/14/2000
240493 Landline TEMPLE HILLS Us Lec Of Maryland 01/14/2000
240494 Landline SILVER SPRING Cavalier East LLC 05/09/2001
240495 Wireless Mount Rainier Cellco Partnership DBA Verizon Wireless 10/29/2013
240497 Landline CHEVY CHASE Verizon Maryland 10/31/2000
240498 Wireless LAUREL Sprint Spectrum L.p. 10/31/2000
240499 Landline ROCKVILLE Us Lec Of Maryland 01/14/2000
240500 Landline HAGERSTOWN Us Lec Of Maryland 10/21/2010
240501 Wireless SILVER SPRING Sprint Spectrum L.p. 10/08/2001
240502 Wireless SILVER SPRING Sprint Spectrum L.p. 10/04/2011
240503 Landline ISSUE Peerless Network Of Maryland 04/09/2013
240504 Wireless SILVER SPRING Sprint Spectrum L.p. 10/04/2011
240505 Wireless SILVER SPRING Omnipoint Communications Cap Operations 10/31/2001
240506 Wireless ROCKVILLE New Cingular Wireless PCS - DC 01/09/2002
240507 Wireless GLEN ECHO Cellco Partnership DBA Verizon Wireless 09/05/2008
240508 Wireless DISTRICT HEIGHTS Sprint Spectrum L.p. 02/27/1999
240509 Landline GAMBRILLS Bandwidth.com Clec 03/31/2008
240510 Landline UPPER MARLBORO Xo Maryland 10/31/2001
240512 Landline COLLEGE PARK Core Communications 08/08/2006
240513 Wireless HAGERSTOWN Sprint Spectrum L.p. 10/19/2011
240514 Landline SILVER SPRING Us Lec Of Maryland 01/14/2000
240515 Wireless CHEVY CHASE New Cingular Wireless PCS - DC 06/20/2001
240516 Landline ROCKVILLE Us Lec Of Maryland 01/14/2000
240517 WASHINGTON
240518 Wireless WALDORF Sprint Spectrum L.p. 10/21/2011
240519 Wireless CHEVY CHASE Sprint Spectrum L.p. 11/10/2011
240520 Wireless HAGERSTOWN Sprint Spectrum L.p. 03/29/2006
240522 Wireless CUMBERLAND Sprint Spectrum L.p. 12/12/2001
240523 Landline PORT TOBACCO Xo Maryland 02/13/2001
240524 Landline LAUREL Peerless Network Of Maryland 02/27/1999
240525 Landline UPPER MARLBORO Peerless Network Of Maryland 02/27/1999
240526 Landline LEONARDTOWN Peerless Network Of Maryland 02/27/1999
240527 Landline HAGERSTOWN Verizon Maryland 10/31/2000
240528 Landline HUGHESVILLE Broadwing Communications. LLC 10/31/2000
240529 Landline FREDERICK Verizon Maryland 10/31/2000
240530 Landline CHARLES Local Access LLC 08/01/2013
240532 Wireless Oxon Hill Cellco Partnership DBA Verizon Wireless 10/29/2013
240533 Landline BRENTWOOD Teleport Communications America - DC 07/22/1999
240534
240535 Wireless PRINCE FREDERICK New Cingular Wireless PCS - DC 01/09/2001
240536 Landline ASHTON Peerless Network Of Maryland 02/27/1999
240538 Landline LEONARDTOWN Xo Maryland 02/13/2001
240539 Landline BRENTWOOD Peerless Network Of Maryland 02/27/1999
240540 CHARLES
240541 Wireless CHEVY CHASE Sprint Spectrum L.p. 10/31/2011
240542 Landline GREENBELT Us Lec Of Maryland 01/14/2000
240543 Wireless BETHESDA Sprint Spectrum L.p. 07/25/2006
240544 Landline BOWIE Us Lec Of Maryland 01/14/2000
240545 Landline UPPER MARLBORO Us Lec Of Maryland 01/14/2000
240546 Landline ANDREWS AIR FORCE BASE Us Lec Of Maryland 01/14/2000
240547 Landline LAUREL Level 3 Communications 07/22/1999
240548 Landline BOWIE Allegiance Telecom 10/31/2000
240550 Wireless ROCKVILLE Leap Wireless Intl DBA Cricket Comm 03/26/2009
240551 Wireless ROCKVILLE Leap Wireless Intl DBA Cricket Comm 03/25/2009
240552 Wireless ROCKVILLE Leap Wireless Intl DBA Cricket Comm 03/25/2009
240553 Landline GREENBELT Allegiance Telecom 08/20/2000
240554 Landline LAUREL Allegiance Telecom 10/31/2000
240556 Landline BOWIE Paetec Communications 10/31/2001
240558 Landline ROCKVILLE Cavalier Telephone Mid-atlantic 06/30/2001
240559 Landline ASHTON Allegiance Telecom 10/31/2000
240560 Landline ROCKVILLE Xo Maryland 04/23/2001
240561 Wireless LEONARDTOWN Cellco Partnership DBA Verizon Wireless 07/07/2008
240562
240563
240565 Wireless LAUREL Omnipoint Communications Cap Operations 12/30/2005
240566 Landline FREDERICK Verizon Maryland 06/11/2002
240567 Landline ROCKVILLE Verizon Maryland 07/12/2006
240568 Landline LAUREL Verizon Maryland 07/22/1999
240573 Landline UPPER MARLBORO Global Crossing Local Services-md 07/22/1999
240574 CHARLES
240575 Landline FREDERICK Level 3 Communications 12/30/2005
240577 Wireless LEONARDTOWN Cellco Partnership DBA Verizon Wireless 08/09/2006
240578 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 07/08/2011
240580 Wireless CUMBERLAND Sprint Spectrum L.p. 06/14/2001
240581 Landline LAUREL Paetec Communications - DC 03/03/2001
240582 Landline MOUNT RAINIER Verizon Maryland 07/22/1999
240583 Landline LAUREL Verizon Maryland 04/28/2010
240585 Wireless WALDORF Cellco Partnership DBA Verizon Wireless 06/29/2011
240586 Landline FREDERICK Verizon Maryland 12/22/2006
240587 Wireless LEONARDTOWN Cellco Partnership DBA Verizon Wireless 07/06/2009
240593 Wireless LAUREL Omnipoint Communications Cap Operations 03/13/2001
240595 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 09/13/2006
240597 Landline GAITHERSBURG Peerless Network Of Maryland 02/27/1999
240599 Landline ROCKVILLE Broadwing Communications. LLC 07/22/1999
240600 Wireless FREDERICK Sprint Spectrum L.p. 04/27/2011
240601 Wireless BETHESDA Sprint Spectrum L.p. 07/22/1999
240602 Wireless LAUREL Sprint Spectrum L.p. 07/22/1999
240603 Wireless LAUREL Sprint Spectrum L.p. 07/22/1999
240604 Wireless HYATTSVILLE Sprint Spectrum L.p. 07/22/1999
240605 Wireless BETHESDA Sprint Spectrum L.p. 07/22/1999
240606 Wireless HYATTSVILLE Sprint Spectrum L.p. 07/22/1999
240607 Landline WALDORF Global Crossing Local Services-md 05/10/1999
240608 Wireless FREDERICK 365 Wireless 03/11/2013
240612 Landline BRENTWOOD Tw Telecom Of Maryland LLC 08/04/2010
240613 Landline BRENTWOOD Us Lec Of Maryland 04/05/2012
240614 Wireless Metro PCS 07/16/2013
240615 Wireless Metro PCS 05/29/2013
240616 Landline LAUREL Mci Worldcom Communications 06/30/2001
240617 Unknown Shentel Communications
240618 LAUREL
240619 Landline ANDREWS AIR FORCE BASE Mci Worldcom Communications 08/20/2000
240620 Landline ROCKVILLE Mci Worldcom Communications 08/20/2000
240621 Landline ROCKVILLE Mci Worldcom Communications 08/20/2000
240623
240624 Landline COLLEGE PARK Verizon Maryland 06/13/2000
240625 Wireless HAGERSTOWN Sprint Spectrum L.p. 04/17/2001
240626 Wireless FREDERICK Sprint Spectrum L.p. 05/10/1999
240627 Landline SILVER SPRING Global Crossing Local Services-md 02/27/1999
240629 Landline FREDERICK Verizon Maryland 10/13/1999
240630 Landline BRENTWOOD Bandwidth.com Clec 10/31/2011
240631 Landline GAITHERSBURG Verizon Maryland 11/20/1998
240632 Landline GAITHERSBURG Verizon Maryland 07/22/1999
240636
240638 Landline SILVER SPRING Broadwing Communications. LLC 05/10/1999
240640 Wireless WALDORF Leap Wireless Intl DBA Cricket Comm 03/24/2009
240641 ROCKVILLE
240642 ROCKVILLE
240643 Wireless SILVER SPRING Omnipoint Communications Cap Operations 05/16/2002
240644 Landline CHEVY CHASE Xo Maryland 10/31/2000
240645 Landline SILVER SPRING Xo Maryland 10/31/2000
240646 Landline LAUREL Cavalier East LLC 10/13/1999
240650 Landline GLEN ECHO Broadvox-clec - DC 11/17/2011
240651 Wireless FREDERICK Halo Wireless Services 11/28/2011
240652 Landline MECHANICSVILLE Xo Maryland 02/13/2001
240654 Wireless GAITHERSBURG New Cingular Wireless PCS - DC 05/19/2006
240657
240660
240661 FREDERICK
240662 Landline TAKOMA PARK Verizon Maryland 01/14/2000
240667 Landline BRENTWOOD Global Crossing Local Services-md 02/27/1999
240668 Landline CLARKSBURG Starpower Communications 11/20/1998
240669 Landline SILVER SPRING Comcast Phone Of Northern Maryland 10/31/2000
240670 Landline BRENTWOOD Local Access LLC 03/06/2012
240671 Wireless CHEVY CHASE Sprint Spectrum L.p. 10/31/2000
240672 Landline ROCKVILLE Cellco Partnership DBA Verizon Wireless 10/31/2000
240674 Wireless FREDERICK Sprint Spectrum L.p. 10/13/1999
240675 Wireless MYERSVILLE New Cingular Wireless PCS - DC 05/10/1999
240676 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 02/27/1999
240678 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 02/27/1999
240681 BRANDYWINE
240682 Landline WALDORF Starpower Communications 11/20/1998
240683 Landline ROCKVILLE Verizon Maryland 03/03/2001
240684 Landline COLLEGE PARK Verizon Maryland 10/31/2000
240685 Landline BRANDYWINE Global Crossing Local Services-md 05/10/1999
240686 Landline GERMANTOWN Verizon Maryland 03/03/2001
240687 Wireless KENSINGTON Cellco Partnership DBA Verizon Wireless 02/27/1999
240688 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 06/12/2006
240691 Landline DISTRICT HEIGHTS Global Crossing Local Services-md 02/27/1999
240694 Landline BETHESDA Verizon Maryland 11/20/1998
240695 Landline SUITLAND Verizon Maryland 11/20/1998
240696 Landline BRENTWOOD Level 3 Communications 07/22/1999
240699 Landline FREDERICK Verizon Maryland 05/22/2001
240701 Wireless SILVER SPRING Leap Wireless Intl DBA Cricket Comm 03/25/2009
240702
240704 Wireless BRENTWOOD Leap Wireless Intl DBA Cricket Comm 03/25/2009
240705 Wireless BETHESDA Leap Wireless Intl DBA Cricket Comm 03/25/2009
240706 Wireless BETHESDA Leap Wireless Intl DBA Cricket Comm 03/26/2009
240707 Wireless HAGERSTOWN New Cingular Wireless PCS - DC 01/27/2012
240708 Wireless COLUMBIA Level 3 Communications 06/08/2012
240712 Wireless COLUMBIA Cellco Partnership DBA Verizon Wireless 11/01/2011
240713 Landline LAUREL Peerless Network Of Maryland 11/02/2011
240714 WASHINGTON
240715 Landline ROCKVILLE Global Crossing Local Services-md 02/27/1999
240716 Wireless FREDERICK Omnipoint Communications Cap Operations 11/15/2013
240718 Landline GREAT MILLS Xo Maryland 02/13/2001
240719
240720 Landline GAITHERSBURG Global Crossing Local Services-md 02/27/1999
240722 Landline ASHTON Global Crossing Local Services-md 02/27/1999
240723 Landline SILVER SPRING Cellco Partnership DBA Verizon Wireless 05/10/1999
240724 Landline TEMPLE HILLS Cavalier East LLC 10/31/2000
240725 Landline LEXINGTON PARK Verizon Maryland 11/20/1998
240727 Wireless CUMBERLAND New Cingular Wireless PCS - DC 07/22/1999
240731 Wireless ROCKVILLE New Cingular Wireless PCS - DC 10/31/2000
240734 Landline HAGERSTOWN Bandwidth.com Clec 03/22/2012
240737 Landline BRENTWOOD Cavalier East LLC 05/09/2001
240740 WALDORF
240743 Landline BETHESDA Local Access LLC 11/16/2006
240744 Landline CHEVY CHASE Broadwing Communications. LLC 05/10/1999
240745 Landline CLARKSBURG Xo Maryland 10/31/2001
240747 Landline BETHESDA Cavalier East LLC 05/09/2001
240750 Wireless GAITHERSBURG New Cingular Wireless PCS - DC 05/06/2005
240751 Landline GAITHERSBURG Telcove Operations 08/20/2000
240752 Landline CHEVY CHASE Telcove Operations 08/20/2000
240753 Landline ROCKVILLE Telcove Operations 08/20/2000
240754 Landline WALDORF Level 3 Communications 11/11/2011
240755 Landline LAUREL Comcast Phone Of Northern Maryland 01/05/2006
240757 Landline GREENBELT Peerless Network Of Maryland 07/22/1999
240762 Wireless BRENTWOOD Cellco Partnership DBA Verizon Wireless 08/22/2012
240764 Landline BRENTWOOD Xo Maryland 10/31/2000
240765 Landline DISTRICT HEIGHTS Xo Maryland 10/31/2000
240766 Landline TEMPLE HILLS Xo Maryland 10/31/2000
240767 Landline DISTRICT HEIGHTS Cavalier East LLC 05/09/2001
240770 Landline BRENTWOOD Comcast Phone Of Northern Maryland 11/22/2004
240772 Wireless FREDERICK Cellco Partnership DBA Verizon Wireless 11/17/2011
240773 Landline ROCKVILLE Verizon Maryland 10/13/1999
240776 Landline PORT TOBACCO Broadwing Communications. LLC 05/10/1999
240777 Landline ROCKVILLE Verizon Maryland 05/10/1999
240778 Landline ROCKVILLE Xo Maryland 10/31/2000
240779 Landline ASHTON Cavalier East LLC 10/31/2000
240780 Landline GAITHERSBURG Broadwing Communications. LLC 05/10/1999
240782 Landline CLARKSBURG Global Crossing Local Services-md 05/10/1999
240783 Wireless CHEVY CHASE Mte DBA Mte Paging Network 05/10/1999
240784 Wireless MYERSVILLE Omnipoint Communications Cap Operations 06/06/2001
240786 Landline LAUREL Broadwing Communications. LLC 05/10/1999
240787 Landline BRANDYWINE Broadwing Communications. LLC 05/10/1999
240788 Landline BRENTWOOD Broadwing Communications. LLC 05/10/1999
240790 Landline BRENTWOOD Broadwing Communications. LLC 05/10/1999
240793 Wireless GAITHERSBURG Sprint Spectrum L.p. 03/15/2001
240794 Landline GREAT MILLS Broadwing Communications. LLC 05/10/1999
240800 Landline BETHESDA Core Communications 06/22/2012
240801 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 10/04/2013
240802 Wireless 365 Wireless 05/10/2013
240803 Wireless CUMBERLAND New Cingular Wireless PCS - DC 01/27/2012
240804 Landline FAULKNER Xo Maryland 04/23/2001
240812 Landline POOLESVILLE Global Crossing Local Services-md 05/10/1999
240813 Landline GAITHERSBURG Atx Telecommunications Services, Ltd 06/30/2001
240818 Landline SMITHSBURG Verizon Maryland 10/13/1999
240821 Landline SILVER SPRING Lightwave Communications 05/27/2005
240823 Landline BRANDYWINE Xo Maryland 02/13/2001
240825 ROCKVILLE
240826 Landline ROCKVILLE Verizon Maryland 05/07/2007
240832 Wireless CHEVY CHASE Sprint Spectrum L.p. 05/10/1999
240833 Landline SILVER SPRING Xo Maryland 10/31/2000
240835 ROCKVILLE
240837 Landline HUGHESVILLE Xo Maryland 02/13/2001
240838 Wireless DISTRICT HEIGHTS Omnipoint Communications Cap Operations 03/12/2001
240839 Wireless HYATTSVILLE Cellco Partnership DBA Verizon Wireless 01/13/2007
240841 Landline LAUREL Allegiance Telecom 10/31/2000
240842 Landline BOWIE Allegiance Telecom 10/31/2000
240843 Landline HYATTSVILLE Allegiance Telecom 10/31/2000
240844 Landline RIDGE Xo Maryland 02/13/2001
240845 Landline GREENBELT Xo Maryland 10/31/2000
240846 Landline ANDREWS AIR FORCE BASE Xo Maryland 10/31/2000
240848 Wireless GAITHERSBURG Sprint Spectrum L.p. 03/03/2001
240855 Wireless BETHESDA Sprint Spectrum L.p. 10/09/2006
240857 Landline ANDREWS AIR FORCE BASE Tw Telecom Of Maryland LLC 05/10/1999
240863 Landline UPPER MARLBORO Tw Telecom Of Maryland LLC 05/10/1999
240864 Landline COLLEGE PARK Cavalier East LLC 05/09/2001
240865 Landline ELKRIDGE Level 3 Communications 03/03/2001
240868 Landline ROCKVILLE Cavalier East LLC 05/09/2001
240876 Wireless GAITHERSBURG Sprint Spectrum L.p. 11/20/1998
240880 Landline BRENTWOOD Broadwing Communications. LLC 07/22/1999
240882 Wireless DISTRICT HEIGHTS Sprint Spectrum L.p. 11/20/1998
240883 Landline ASHTON Broadwing Communications. LLC 07/22/1999
240888 Wireless ROCKVILLE New Cingular Wireless PCS - DC 03/03/2001
240892 Landline UPPER MARLBORO Broadwing Communications. LLC 07/22/1999
240893 Wireless SILVER SPRING New Cingular Wireless PCS - DC 03/03/2001
240895 Landline PATUXENT RIVER Verizon Maryland 06/30/2001
240897 Landline BRENTWOOD Broadwing Communications. LLC 07/22/1999
240898 Landline HYATTSVILLE Broadwing Communications. LLC 07/22/1999
240899 Wireless CHEVY CHASE Omnipoint Communications Cap Operations 03/13/2001
240901 Unknown Centurylink Communications LLC
240903 Landline Indian Head Comcast Phone Of Northern Maryland 12/03/2013
240912 Landline GAITHERSBURG Us Lec Of Maryland 01/14/2000
240920 Landline CUMBERLAND Level 3 Communications 05/03/2001
240925 Wireless LEONARDTOWN Cellco Partnership DBA Verizon Wireless 08/09/2001
240929 Landline BOWIE Cavalier East LLC 10/13/1999
240938 Wireless ASHTON Omnipoint Communications Cap Operations 06/06/2001
240949 Landline ANDREWS AIR FORCE BASE Cavalier East LLC 05/09/2001
240964 Landline CUMBERLAND Verizon Maryland 05/27/2008
240965 Landline GREENBELT Paetec Communications 10/31/2000
240976 Unknown DAMASCUS Baltimore-washington Telephone (bwt)
240979 Landline CUMBERLAND Level 3 Communications 03/03/2001
240986 Landline NANJEMOY Xo Maryland 02/13/2001
240988 Wireless LAUREL Sprint Spectrum L.p. 05/10/1999
240993 Landline INDIAN HEAD Xo Maryland 02/13/2001
240994 Wireless ROCKVILLE Cellco Partnership DBA Verizon Wireless 10/13/1999
240997 Wireless SILVER SPRING Cellco Partnership DBA Verizon Wireless 10/13/1999