Area Code Info

443 Area Code

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Maryland Area Codes Map

Area Code Information

Area Code: 443
State: Maryland
Primary City: Baltimore
Timezone: Eastern
State Code:

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Area code 443 was first put in service June 1, 1997. In 2012, area code 667 was created as an overlay to area code 443. Currently, the largest city it serves is Baltimore, MD, and it overlaps coverage areas with area codes 410 and 667.

Heavily Reported Numbers

Active Phone Number Prefixes

Prefix Usage Primary City Carrier Introduced
443200 Landline BALTIMORE Allegiance Telecom 02/21/2001
443201 Wireless GLEN BURNIE Cellco Partnership DBA Verizon Wireless 12/01/2011
443202 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 01/09/2012
443203 Landline WEST RIVER Verizon Maryland 03/03/2001
443204 Wireless PIKESVILLE New Cingular Wireless PCS - DC 05/15/2003
443205 Wireless CAMBRIDGE Sprint Spectrum L.p. 01/20/2004
443206 Wireless PERRYVILLE Cellco Partnership DBA Verizon Wireless 01/14/2000
443207 Wireless ELKTON Omnipoint Communications Enterprises, L.p. 08/14/1998
443208 Landline ESSEX Sprint Spectrum L.p. 02/01/2011
443209 Landline HAVRE DE GRACE Cavalier Telephone (mid-atlantic) 02/27/1999
443210 Landline ABERDEEN PROVING GROUND Sprint Spectrum L.p. 09/30/2011
443212 Landline SPARKS GLENCOE Us Lec Of Maryland 08/14/1998
443213 Landline BALTIMORE Verizon Maryland 05/18/1998
443214 Landline ANNAPOLIS New Cingular Wireless PCS - DC 10/11/2011
443215 Landline CHESTERTOWN Core Communications 01/14/2000
443216 Landline DUNDALK Cavalier Telephone Mid-atlantic 10/13/1999
443217 Landline ANNAPOLIS Core Communications 01/14/2000
443218 Landline GLYNDON Global Crossing Local Services-md 07/22/1999
443219 Landline BALTIMORE Level 3 Communications 05/18/1998
443220 Landline BALTIMORE Verizon Maryland 11/20/1998
443221 Landline ANNAPOLIS Level 3 Communications 08/20/2000
443222 Landline GLYNDON Xo Maryland 01/14/2000
443223 Wireless ANNAPOLIS Cellco Partnership DBA Verizon Wireless 10/13/1999
443224 Landline SEVERNA PARK Mci Worldcom Communications 05/10/1999
443225 Landline CAMBRIDGE Sprint Spectrum L.p. 01/20/2004
443226 Wireless ELKRIDGE Sprint Spectrum L.p. 08/14/1998
443227 Landline PORT DEPOSIT Ctc Communications Corp. 01/14/2000
443228 Landline WHITE MARSH Us Lec Of Maryland 06/30/2001
443229 Landline SEVERNA PARK Cavalier Telephone Mid-atlantic 05/10/2001
443230 Landline ELLICOTT CITY Ctc Communications Corp. 01/14/2000
443231 Landline BALTIMORE AT&T Local 08/14/1998
443232 Landline WILLARDS Cavalier Telephone (mid-atlantic) 11/20/1998
443233 Landline RHODESDALE Cavalier Telephone (mid-atlantic) 11/20/1998
443234 Landline SNOW HILL Cavalier Telephone (mid-atlantic) 11/20/1998
443235 Wireless CRISFIELD Cellco Partnership DBA Verizon Wireless 10/13/1999
443236 Landline WHITEFORD Core Communications 01/14/2000
443237 Landline NORTH BEACH Core Communications 01/14/2000
443238 Landline PARKTON Ctc Communications Corp. 01/14/2000
443239 Wireless EASTON New Cingular Wireless PCS - DC 01/20/2004
443240 Wireless BALTIMORE New Cingular Wireless PCS - DC 01/27/2012
443241 Landline WESTMINSTER Global Naps South 01/14/2000
443242 Landline SPARROWS POINT Cavalier Telephone Mid-atlantic 05/10/2001
443243 Wireless FALLSTON Cellco Partnership DBA Verizon Wireless 10/13/1999
443244 Landline WESTMINSTER Level 3 Communications 10/13/1999
443245 Landline ELKTON Cavalier Telephone (mid-atlantic) 02/27/1999
443246 Landline ELKTON Core Communications 01/14/2000
443247 Landline UNION BRIDGE Ctc Communications Corp. 01/14/2000
443248 Wireless CATONSVILLE Cellco Partnership DBA Verizon Wireless 01/15/2007
443249 Landline STEVENSVILLE Verizon Maryland 07/22/1999
443250 Wireless PERRY HALL Sprint Spectrum L.p. 08/14/1998
443251 Wireless CHESTERTOWN Local Access LLC 08/16/2013
443252 Wireless ELLICOTT CITY Cellco Partnership DBA Verizon Wireless 09/08/2009
443253 Wireless HYATTSVILLE New Cingular Wireless PCS - DC 08/14/1998
443254 Wireless DAVIDSONVILLE Omnipoint Communications Cap Operations 06/13/2000
443255 Wireless FINKSBURG New Cingular Wireless PCS - DC 07/22/1999
443256 Landline ELKTON Ctc Communications Corp. 01/14/2000
443257 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 08/14/1998
443258 Wireless EASTON New Cingular Wireless PCS - DC 07/22/1999
443259 Landline COLUMBIA Verizon Maryland 08/14/1998
443260 Landline SALISBURY Verizon Maryland 07/22/1999
443261 Landline SEVERNA PARK Mci Worldcom Communications 06/13/2000
443262 Landline CENTREVILLE Verizon Maryland 01/14/2000
443263 Landline BALTIMORE Verizon Maryland 07/22/1999
443264 Landline PIKESVILLE Xo Maryland 01/14/2000
443265 Landline FORK Cavalier Telephone Mid-atlantic 05/10/2001
443266 Landline GLENWOOD Global Crossing Local Services-md 07/22/1999
443267 Landline DARLINGTON Teleport Communications America 02/27/1999
443268 Landline DUNDALK Core Communications 01/14/2000
443269 Landline TOWSON Xo Maryland 01/14/2000
443270 Landline BALTIMORE Paetec Communications 10/13/1999
443271 Wireless BALTIMORE Sprint Spectrum L.p. 10/21/2002
443272 Landline BALTIMORE Teleport Communications America 08/14/1998
443273 Landline GLYNDON Teleport Communications America 08/14/1998
443274 Landline SEVERN Verizon Maryland 10/13/1999
443275 Landline TOWSON Comcast Phone Of Northern Maryland 05/18/1998
443276 Landline BALTIMORE Allegiance Telecom 06/13/2000
443277 Wireless SYKESVILLE Sprint Spectrum L.p. 07/22/1999
443278 Landline BALTIMORE Vdl DBA Global Telecom Brokers 10/02/2003
443279 Landline TOWSON Allegiance Telecom 10/13/1999
443280 Wireless COCKEYSVILLE New Cingular Wireless PCS - DC 08/14/1998
443281 Landline BALTIMORE Allegiance Telecom 06/13/2000
443282 Wireless CHESTERTOWN Sprint Spectrum L.p. 10/04/2004
443283 Landline BALTIMORE Paetec Communications 10/13/1999
443284 Landline ANNAPOLIS JUNCTION Xo Maryland 01/14/2000
443285 Landline COLUMBIA Verizon Maryland 10/13/1999
443286 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 08/14/1998
443287 Landline BALTIMORE Verizon Maryland 07/22/1999
443288 Landline BALTIMORE Allegiance Telecom 06/13/2000
443289 Landline CATONSVILLE Mci Worldcom Communications 05/16/2011
443290 Landline PARKVILLE Tw Telecom Of Maryland LLC 10/13/1999
443291 Landline HAMPSTEAD Global Crossing Local Services-md 07/22/1999
443292 Landline LAUREL Level 3 Communications 10/13/1999
443293 Landline WESTMINSTER Global Crossing Local Services-md 07/22/1999
443294 Landline WEST RIVER Global Crossing Local Services-md 07/22/1999
443295 Landline ANNAPOLIS Level 3 Communications 10/13/1999
443296 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443297 Landline HALETHORPE Teleport Communications America 08/14/1998
443298 Wireless EASTON New Cingular Wireless PCS - DC 11/15/2002
443299 Landline FALLSTON Global Crossing Local Services-md 07/22/1999
443300 Landline SYKESVILLE Broadwing Communications. LLC 08/20/2000
443301 Wireless BALTIMORE New Cingular Wireless PCS - DC 04/05/2012
443302 Landline CROFTON Global Crossing Local Services-md 07/22/1999
443303 Landline ABERDEEN Global Crossing Local Services-md 07/22/1999
443304 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443305 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443306 Wireless ELKRIDGE Sprint Spectrum L.p. 08/14/1998
443307 Landline BEL AIR Global Crossing Local Services-md 07/22/1999
443308 Landline BALTIMORE Allegiance Telecom 06/13/2000
443309 Wireless NORTH EAST Sprint Spectrum L.p. 11/20/1998
443310 Wireless BALTIMORE New Cingular Wireless PCS - DC 10/31/2000
443312 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443313 Landline FORK Global Crossing Local Services-md 07/22/1999
443314 Wireless PARKVILLE Sprint Spectrum L.p. 02/01/2011
443315 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443316 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443317 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443318 Landline HUNT VALLEY Cavalier Telephone (mid-atlantic) 11/20/1998
443319 Landline COLUMBIA Cavalier Telephone (mid-atlantic) 11/20/1998
443320 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443321 Landline ANNAPOLIS Paetec Communications 06/13/2000
443322 Landline TOWSON Cavalier Telephone Mid-atlantic 05/10/2001
443323 Landline MARDELA SPRINGS Cavalier Telephone (mid-atlantic) 11/20/1998
443324 Wireless GLEN BURNIE Sprint Spectrum L.p. 07/22/1999
443325 Landline ELLICOTT CITY Cavalier Telephone Mid-atlantic 11/20/1998
443326 Wireless BALTIMORE New Cingular Wireless PCS - DC 02/21/2001
443327 Landline ABERDEEN Cavalier Telephone Mid-atlantic 03/03/2001
443328 Landline BALTIMORE Ctc Communications Corp. 01/14/2000
443329 Landline ANNAPOLIS JUNCTION Global Crossing Local Services-md 02/27/1999
443330 Landline BALTIMORE Cavalier Telephone Mid-atlantic 05/18/1998
443331 Landline TANEYTOWN Ctc Communications Corp. 01/14/2000
443332 Landline CROFTON Cavalier Telephone Mid-atlantic 05/09/2001
443333 Wireless ANNAPOLIS Leap Wireless Intl DBA Cricket Comm 02/13/2009
443334 Landline TOWSON Allegiance Telecom 03/14/2001
443335 Landline LINTHICUM HEIGHTS Xo Maryland 01/14/2000
443336 Wireless CROFTON Sprint Spectrum L.p. 05/10/1999
443337 Landline SPARROWS POINT Xo Maryland 01/14/2000
443338 Landline SPARKS GLENCOE Ctc Communications Corp. 01/14/2000
443339 Landline ANNAPOLIS Ctc Communications Corp. 01/14/2000
443340 Wireless WESTMINSTER Cellco Partnership DBA Verizon Wireless 10/13/1999
443341 Landline BALTIMORE Level 3 Communications 05/18/1998
443342 Landline SOLOMONS Ctc Communications Corp. 01/14/2000
443343 Landline MILLERSVILLE Teleport Communications America 02/27/1999
443344 Landline SEVERNA PARK Core Communications 01/14/2000
443345 Landline ABERDEEN Level 3 Communications 10/13/1999
443346 Landline SEVERNA PARK Xo Maryland 01/14/2000
443347 Landline WHITEFORD Ctc Communications Corp. 01/14/2000
443348 Landline BALTIMORE Teleport Communications America 08/14/1998
443349 Landline TANEYTOWN Core Communications 01/14/2000
443350 Wireless ELKTON Cellco Partnership DBA Verizon Wireless 08/20/2000
443351 Landline COLUMBIA Us Lec Of Maryland 06/13/2000
443352 Landline BALTIMORE AT&T Local 11/20/1998
443353 Landline COCKEYSVILLE Verizon Maryland 03/19/2004
443354 Landline BROOKLYN Level 3 Communications 07/22/1999
443355 Landline BROOKLYN Level 3 Communications 07/22/1999
443356 Landline BEL AIR Level 3 Communications 07/22/1999
443357 Landline PIKESVILLE Verizon Maryland 10/13/1999
443358 Landline SALISBURY Ymax Communications Corp. 02/17/2011
443359 Wireless DELMAR Cellco Partnership DBA Verizon Wireless 06/13/2000
443360 Landline ABERDEEN Teleport Communications America 08/14/1998
443361 Landline SYKESVILLE Core Communications 01/14/2000
443362 Wireless EASTON Omnipoint Communications Cap Operations 06/13/2000
443363 Landline SEVERN Xo Maryland 01/14/2000
443364 Landline BALTIMORE Teleport Communications America 08/14/1998
443365 Wireless SALISBURY Omnipoint Communications Cap Operations 06/13/2000
443366 Wireless PARSONSBURG Sprint Spectrum L.p. 04/17/2001
443367 Landline COLUMBIA Verizon Maryland 06/13/2000
443368 Landline WESTMINSTER Core Communications 01/14/2000
443369 Landline BEL AIR Core Communications 01/14/2000
443370 Landline ANNAPOLIS New Cingular Wireless PCS - DC 10/31/2000
443371 Landline BEL AIR Broadwing Communications. LLC 10/31/2000
443372 Landline EDGEWOOD Us Lec Of Maryland 03/19/2001
443373 Wireless OCEAN CITY Sprint Spectrum L.p. 10/31/2000
443374 Landline ABERDEEN Cavalier Telephone (mid-atlantic) 02/27/1999
443375 Wireless HAMPSTEAD Sprint Spectrum L.p. 08/20/2000
443376 Landline BALTIMORE Teleport Communications America 08/14/1998
443377 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 06/09/2010
443378 Wireless BALTIMORE Sprint Spectrum L.p. 07/27/2004
443379 Landline PIKESVILLE Comcast Phone Of Northern Maryland 02/23/2007
443380 Landline BALTIMORE Level 3 Communications 05/18/1998
443381 Landline GLYNDON Xo Maryland 01/14/2000
443382 Landline CAMBRIDGE Core Communications 01/14/2000
443383 Landline TANEYTOWN Ctc Communications Corp. 01/14/2000
443384 Landline PARKVILLE Cavalier Telephone Mid-atlantic 10/13/1999
443385 Landline EASTON Core Communications 01/14/2000
443386 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 02/27/1999
443387 Landline POCOMOKE CITY Core Communications 01/14/2000
443388 Wireless DUNDALK Cellco Partnership DBA Verizon Wireless 04/13/2006
443389 Landline SALISBURY Core Communications 01/14/2000
443390 Landline CHURCHVILLE Global Crossing Local Services-md 07/22/1999
443391 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443392 Landline BALTIMORE AT&T Local 05/10/1999
443393 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443394 Landline OWINGS MILLS Verizon Maryland 11/20/1998
443395 Landline ABERDEEN Verizon Maryland 08/13/2009
443396 Landline ODENTON Global Crossing Local Services-md 07/22/1999
443397 Wireless SALISBURY Cellco Partnership DBA Verizon Wireless 04/06/2009
443398 Wireless SYKESVILLE Sprint Spectrum L.p. 03/15/2001
443399 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443400 Landline BALTIMORE Xo Maryland 10/31/2000
443401 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 10/17/2011
443402 Landline EDGEWOOD Teleport Communications America 02/27/1999
443403 Landline ABERDEEN Broadwing Communications. LLC 06/20/2001
443404 Wireless OWINGS Sprint Spectrum L.p. 10/31/2000
443405 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443406 Landline ELKTON Teleport Communications America 02/27/1999
443407 Landline BALTIMORE Allegiance Telecom 06/13/2000
443408 Landline BALTIMORE Xo Maryland 10/31/2000
443409 Landline EDGEWOOD Cavalier Telephone Mid-atlantic 10/31/2000
443410 Landline BALTIMORE CITY Centurylink Communications LLC 06/21/2013
443412 Landline CHURCHVILLE Teleport Communications America 02/27/1999
443413 Wireless ELKRIDGE Sprint Spectrum L.p. 05/10/1999
443414 Wireless BALTIMORE Sprint Spectrum L.p. 05/10/1999
443415 Wireless ELKRIDGE Sprint Spectrum L.p. 05/10/1999
443416 Wireless ELKRIDGE Sprint Spectrum L.p. 05/10/1999
443417 Landline FALLSTON Teleport Communications America 02/27/1999
443418 Wireless ELKRIDGE Sprint Spectrum L.p. 05/10/1999
443419 Landline GLENWOOD Cavalier Telephone Mid-atlantic 10/31/2000
443420 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443421 Wireless FORK New Cingular Wireless PCS - DC 08/14/1998
443422 Wireless GLEN BURNIE Leap Wireless Intl DBA Cricket Comm 02/13/2009
443423 Landline BALTIMORE Broadwing Communications. LLC 10/13/1999
443424 Landline WHITEFORD Teleport Communications America 02/27/1999
443425 Landline WHITE MARSH AT&T Local 08/14/1998
443426 Landline BALTIMORE Paetec Communications 06/30/2001
443427 Landline PRINCESS ANNE Core Communications 01/14/2000
443428 Landline HUNT VALLEY Core Communications 01/14/2000
443429 Landline GWYNN OAK Cavalier Telephone Mid-atlantic 10/13/1999
443430 Landline BALTIMORE Xo Maryland 05/18/2001
443431 Landline RANDALLSTOWN Xo Maryland 01/14/2000
443432 Landline PORT REPUBLIC Ctc Communications Corp. 01/14/2000
443433 Landline ANNAPOLIS Xo Maryland 02/21/2001
443434 Landline FEDERALSBURG Comcast Phone Of Northern Maryland 11/01/2004
443435 Wireless ESSEX Sprint Spectrum L.p. 02/01/2011
443436 Landline WINDSOR MILL Verizon Maryland 11/20/1998
443437 Landline POCOMOKE CITY Teleport Communications America 11/01/2004
443438 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 10/08/2008
443439 Landline TRAPPE Cellco Partnership DBA Verizon Wireless 11/01/2004
443440 Landline ANNAPOLIS Verizon Maryland 03/03/2001
443441 Landline GLENWOOD Teleport Communications America 02/27/1999
443442 Landline NOTTINGHAM Cavalier Telephone Mid-atlantic 05/09/2001
443444 Landline BALTIMORE Verizon Maryland 10/13/2005
443445 Landline ELKRIDGE Verizon Maryland 06/30/2001
443446 Landline QUEENSTOWN Mci Worldcom Communications 11/01/2004
443447 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 12/15/2008
443448 Landline DENTON Comcast Phone Of Northern Maryland 11/01/2004
443449 Landline BALTIMORE Broadview Networks 03/28/2007
443450 Landline BALTIMORE Level 3 Communications 05/10/1999
443451 Landline BALTIMORE Paetec Communications 10/13/1999
443452 Landline BALTIMORE Us Lec Of Maryland 09/07/2005
443453 Landline BALTIMORE Neutral Tandem-maryland 10/12/2007
443454 Wireless ANNAPOLIS Omnipoint Communications Cap Operations 03/03/2001
443455 Landline BALTIMORE Verizon Maryland 03/09/2006
443456 Landline EDGEWOOD AT&T Local 03/03/2001
443457 Landline BALTIMORE Teleport Communications America 08/14/1998
443458 Landline ANNAPOLIS Allegiance Telecom 03/03/2001
443459 Landline BALTIMORE Paetec Communications 03/03/2001
443460 Landline BALTIMORE Allegiance Telecom 06/13/2000
443461 Landline PARKVILLE Us Lec Of Maryland 06/13/2000
443462 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 11/06/2008
443463 Wireless CROWNSVILLE Sprint Spectrum L.p. 02/27/1999
443464 Landline BEL AIR Broadview Networks 03/16/2010
443465 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 06/13/2000
443466 Wireless ELKTON Sprint Spectrum L.p. 05/10/1999
443467 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 03/20/2009
443468 Wireless BALTIMORE Sprint Spectrum L.p. 04/04/2007
443469 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 03/20/2009
443470 Landline TOWSON Us Lec Of Maryland 04/29/2008
443471 Landline COLUMBIA Us Lec Of Maryland 06/13/2000
443472 Landline BALTIMORE Level 3 Communications 01/14/2000
443473 Wireless BALTIMORE Sprint Spectrum L.p. 03/28/2007
443474 Wireless CATONSVILLE New Cingular Wireless PCS - DC 02/27/1999
443475 Landline SEVERN Mci Worldcom Communications 06/01/2011
443476 Wireless ANNAPOLIS Verizon Maryland 11/20/1998
443477 Wireless ELLICOTT CITY Cellco Partnership DBA Verizon Wireless 01/13/2007
443478 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 03/06/2009
443479 Landline LAUREL Verizon Maryland 11/20/1998
443480 Wireless CHESTERTOWN Cellco Partnership DBA Verizon Wireless 08/20/2000
443481 Landline ANNAPOLIS Us Lec Of Maryland 06/30/2001
443482 Landline ANNAPOLIS Verizon Maryland 11/20/1998
443483 Landline WHITEFORD Broadwing Communications. LLC 08/20/2000
443484 Landline EDGEWOOD Broadwing Communications. LLC 08/20/2000
443485 Landline ELKTON Broadwing Communications. LLC 08/20/2000
443486 Landline PORT REPUBLIC Broadwing Communications. LLC 08/20/2000
443487 Landline WESTMINSTER Broadwing Communications. LLC 08/20/2000
443488 Wireless COLUMBIA Leap Wireless Intl DBA Cricket Comm 06/23/2010
443489 Landline BALTIMORE Teleport Communications America 02/27/1999
443490 Landline EDGEWOOD Global Crossing Local Services-md 07/22/1999
443491 Landline PARKTON Global Crossing Local Services-md 07/22/1999
443492 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443493 Wireless DELMAR Cellco Partnership DBA Verizon Wireless 03/06/2009
443494 Landline MILLERSVILLE Global Crossing Local Services-md 07/22/1999
443495 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443496 Wireless WYE MILLS Sprint Spectrum L.p. 08/14/1998
443497 Wireless BERLIN Sprint Spectrum L.p. 08/14/1998
443498 Landline BALTIMORE Allegiance Telecom 06/13/2000
443499 Landline JARRETTSVILLE Global Crossing Local Services-md 07/22/1999
443500 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 03/20/2009
443501 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443502 Landline HAVRE DE GRACE Teleport Communications America 02/27/1999
443503 Landline BALTIMORE Xo Maryland 10/31/2000
443504 Landline FALLSTON Cavalier Telephone Mid-atlantic 10/31/2000
443505 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443506 Wireless REISTERSTOWN Sprint Spectrum L.p. 06/13/2000
443507 Landline HAMPSTEAD Teleport Communications America 02/27/1999
443508 Landline HAMPSTEAD Cavalier Telephone Mid-atlantic 10/31/2000
443509 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 02/10/2009
443510 Wireless ANNAPOLIS Cellco Partnership DBA Verizon Wireless 12/04/2007
443512 Landline ABINGDON Verizon Maryland 07/22/1999
443513 Wireless BERLIN New Cingular Wireless PCS - DC 10/31/2000
443514 Landline COLUMBIA Us Lec Of Maryland 06/13/2000
443515 Wireless HALETHORPE Cellco Partnership DBA Verizon Wireless 06/08/2009
443516 Landline SYKESVILLE Global Crossing Local Services-md 07/22/1999
443517 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443518 Landline COLUMBIA Verizon Maryland 12/16/2008
443519 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443520 Wireless ELLICOTT CITY New Cingular Wireless PCS - DC 02/27/1999
443521 Wireless CAMBRIDGE Cellco Partnership DBA Verizon Wireless 01/14/2000
443522 Landline GLYNDON Paetec Communications 06/30/2001
443523 Landline SALISBURY Verizon Maryland 08/20/2000
443524 Landline BALTIMORE Allegiance Telecom 10/13/1999
443525 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 03/20/2009
443526 Landline HAVRE DE GRACE Ctc Communications Corp. 01/14/2000
443527 Wireless HAVRE DE GRACE Omnipoint Communications Cap Operations 03/19/2001
443528 Wireless BEL AIR Sprint Spectrum L.p. 08/20/2000
443529 Wireless BALTIMORE Omnipoint Communications Cap Operations 07/22/2008
443530 Landline BALTIMORE Paetec Communications 06/30/2001
443531 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 03/20/2009
443532 Wireless PORT REPUBLIC Sprint Spectrum L.p. 08/20/2000
443533 Landline JARRETTSVILLE Teleport Communications America 02/27/1999
443534 Landline ANNAPOLIS Cellco Partnership DBA Verizon Wireless 01/15/2001
443535 Landline CLARKSVILLE Verizon Maryland 02/27/1999
443536 Wireless WESTMINSTER Sprint Spectrum L.p. 08/20/2000
443537 Landline COLUMBIA Verizon Maryland 05/22/2009
443538 Wireless COLUMBIA Omnipoint Communications Cap Operations 06/20/2001
443539 Landline COLUMBIA Us Lec Of Maryland 01/14/2000
443540 Wireless BALTIMORE New Cingular Wireless PCS - DC 03/03/2001
443541 Landline BALTIMORE Paetec Communications 10/13/1999
443542 Landline COLUMBIA Comcast Phone Of Northern Maryland 06/30/2001
443543 Landline HALETHORPE Verizon Maryland 05/10/1999
443544 Landline LUTHERVILLE TIMONIUM Cavalier Telephone Mid-atlantic 05/10/2001
443545 Landline COLUMBIA Broadwing Communications. LLC 05/18/2001
443546 Landline BALTIMORE Verizon Maryland 05/18/1998
443547 Wireless WESTMINSTER Cellco Partnership DBA Verizon Wireless 05/07/2009
443548 Landline BALTIMORE Allegiance Telecom 10/13/1999
443549 Landline DUNDALK Us Lec Of Maryland 01/14/2000
443550 Landline NORTH BEACH Level 3 Communications 06/30/2001
443551 Landline BALTIMORE Level 3 Communications 01/14/2000
443552 Landline BALTIMORE Verizon Maryland 06/13/2000
443553 Wireless PORT DEPOSIT Cellco Partnership DBA Verizon Wireless 05/10/1999
443554 Wireless WHITE MARSH Omnipoint Communications Cap Operations 07/23/2001
443556 Landline COCKEYSVILLE Verizon Maryland 08/14/1998
443557 Landline BALTIMORE Allegiance Telecom 06/13/2000
443558 Landline ABERDEEN Xo Maryland 01/15/2001
443559 Landline ESSEX Comcast Phone Of Northern Maryland 06/30/2001
443560 Wireless ESSEX Sprint Spectrum L.p. 07/18/2011
443561 Landline COLUMBIA Us Lec Of Maryland 01/14/2000
443562 Wireless COCKEYSVILLE New Cingular Wireless PCS - DC 01/14/2000
443563 Wireless BALTIMORE Sprint Spectrum L.p. 11/14/2006
443564 Landline BALTIMORE Level 3 Communications 10/13/1999
443565 Landline RANDALLSTOWN Cavalier Telephone Mid-atlantic 05/10/2001
443566 Wireless CHESAPEAKE CITY Cellco Partnership DBA Verizon Wireless 09/16/2004
443567 Landline BEL AIR Level 3 Communications 10/13/1999
443568 Landline HALETHORPE Allegiance Telecom 06/13/2000
443569 Landline ANNAPOLIS Level 3 Communications 10/13/1999
443570 Wireless MIDDLE RIVER Omnipoint Communications Cap Operations 06/13/2000
443571 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 12/06/2011
443572 Landline GLEN BURNIE Verizon Maryland 05/18/1998
443573 Landline COLUMBIA Us Lec Of Maryland 01/14/2000
443574 Landline ELLICOTT CITY Us Lec Of Maryland 01/14/2000
443575 Landline HALETHORPE Cavalier Telephone Mid-atlantic 05/10/2001
443576 Landline BALTIMORE Allegiance Telecom 02/21/2001
443577 Landline COLUMBIA Us Lec Of Maryland 06/13/2000
443578 Landline BALTIMORE Xo Maryland 06/30/2001
443579 Landline ESSEX Us Lec Of Maryland 01/14/2000
443580 Wireless BALTIMORE Sprint Spectrum L.p. 08/25/2011
443581 Landline WHITE MARSH Xo Maryland 01/14/2000
443582 Landline CHURCHVILLE Ctc Communications Corp. 01/14/2000
443583 Landline COLUMBIA Ctc Communications Corp. 01/14/2000
443584 Landline CROFTON Ctc Communications Corp. 01/14/2000
443585 Landline DARLINGTON Ctc Communications Corp. 01/14/2000
443586 Landline DUNDALK Xo Maryland 01/14/2000
443587 Landline EDGEWOOD Ctc Communications Corp. 01/14/2000
443588 Landline BALTIMORE Allegiance Telecom 10/13/1999
443589 Landline HUNT VALLEY Us Lec Of Maryland 03/03/2001
443590 Landline GLYNDON Global Crossing Local Services-md 07/22/1999
443591 Wireless HUNT VALLEY Cellco Partnership DBA Verizon Wireless 05/07/2009
443592 Landline ELKRIDGE Xo Maryland 01/14/2000
443593 Landline ELKTON Ctc Communications Corp. 01/14/2000
443594 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443595 Landline SPARKS GLENCOE Global Crossing Local Services-md 07/22/1999
443596 Landline ESSEX Xo Maryland 01/14/2000
443597 Landline SEVERNA PARK Global Crossing Local Services-md 07/22/1999
443598 Landline ANNAPOLIS Global Crossing Local Services-md 07/22/1999
443599 Landline BALTIMORE Global Crossing Local Services-md 07/22/1999
443600 Wireless ESSEX Omnipoint Communications Cap Operations 07/23/2001
443601 Landline FALLSTON Ctc Communications Corp. 01/14/2000
443602 Wireless CATONSVILLE Cellco Partnership DBA Verizon Wireless 02/15/2007
443603 Landline ANNAPOLIS Paetec Communications 05/18/1998
443604 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 02/27/1999
443605 Landline WESTMINSTER Cavalier Telephone Mid-atlantic 10/31/2000
443606 Landline FORK Ctc Communications Corp. 01/14/2000
443607 Landline WEST RIVER Cavalier Telephone Mid-atlantic 10/31/2000
443608 Wireless TOWSON Leap Wireless Intl DBA Cricket Comm 02/27/2009
443609 Landline SYKESVILLE Cavalier Telephone Mid-atlantic 10/31/2000
443610 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 10/13/1999
443612 Landline CATONSVILLE Verizon Maryland 08/14/1998
443613 Wireless TOWSON Leap Wireless Intl DBA Cricket Comm 02/27/2009
443614 Wireless SALISBURY Cellco Partnership DBA Verizon Wireless 07/23/2001
443615 Wireless CATONSVILLE Cellco Partnership DBA Verizon Wireless 05/10/2007
443616 Landline BEL AIR Cavalier Telephone Mid-atlantic 10/31/2000
443617 Wireless FALLSTON Cellco Partnership DBA Verizon Wireless 04/11/2005
443618 Wireless GLEN BURNIE Cellco Partnership DBA Verizon Wireless 06/13/2000
443619 Wireless BEL AIR Cellco Partnership DBA Verizon Wireless 06/05/2009
443620 Landline BALTIMORE Teleport Communications America 08/14/1998
443621 Wireless ELKRIDGE Sprint Spectrum L.p. 02/27/1999
443622 Wireless ELKRIDGE Sprint Spectrum L.p. 02/27/1999
443623 Wireless GLEN BURNIE Sprint Spectrum L.p. 08/20/2002
443624 Wireless PORT REPUBLIC Cellco Partnership DBA Verizon Wireless 03/06/2002
443625 Landline FORK Broadwing Communications. LLC 02/21/2001
443626 Landline WHITE MARSH Cavalier Telephone Mid-atlantic 05/10/2001
443627 Landline BALTIMORE Verizon Maryland 09/26/2006
443628 Landline GLEN BURNIE Xo Maryland 01/14/2000
443629 Wireless GLEN BURNIE Sprint Spectrum L.p. 08/14/1998
443630 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 05/08/2008
443631 Wireless CATONSVILLE New Cingular Wireless PCS - DC 08/16/2005
443632 Landline TOWSON Us Lec Of Maryland 01/14/2000
443633 Wireless ANNAPOLIS JUNCTION Sprint Spectrum L.p. 07/18/2011
443634 Landline BALTIMORE Verizon Maryland 11/09/2011
443635 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 10/14/2009
443636 Landline CATONSVILLE Omnipoint Communications Cap Operations 06/25/2005
443637 Landline BALTIMORE Xo Maryland 02/21/2001
443638 Landline ELLICOTT CITY Global Naps South 01/14/2000
443639 Landline HAMPSTEAD Ctc Communications Corp. 01/14/2000
443640 Landline BEL AIR Us Lec Of Maryland 05/18/2001
443641 Landline PIKESVILLE Broadwing Communications. LLC 05/18/2001
443642 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 11/08/2006
443643 Landline BEL AIR Verizon Maryland 10/13/1999
443644 Landline JARRETTSVILLE Ctc Communications Corp. 01/14/2000
443645 Landline MILLERSVILLE Ctc Communications Corp. 01/14/2000
443646 Landline NORTH BEACH Ctc Communications Corp. 01/14/2000
443647 Landline NEW WINDSOR Ctc Communications Corp. 01/14/2000
443648 Landline BALTIMORE Teleport Communications America 08/14/1998
443649 Landline SPARROWS POINT Us Lec Of Maryland 06/20/2001
443650 Landline GLYNDON Allegiance Telecom 02/20/2001
443651 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 07/08/2011
443652 Landline TOWSON Verizon Maryland 05/28/2002
443653 Wireless BALTIMORE Omnipoint Communications Cap Operations 05/18/2001
443654 Landline ELKRIDGE Verizon Maryland 08/28/2008
443655 Wireless BEL AIR New Cingular Wireless PCS - DC 10/13/1999
443656 Landline COLUMBIA Cavalier Telephone Mid-atlantic 05/10/2001
443657 Landline RANDALLSTOWN Tw Telecom Of Maryland LLC 10/13/1999
443658 Landline GWYNN OAK Global Naps South 01/14/2000
443659 Landline WEST RIVER Global Naps South 01/14/2000
443660 Landline BALTIMORE Comcast Phone Of Northern Maryland 06/30/2001
443661 Landline ANNAPOLIS JUNCTION Cavalier Telephone Mid-atlantic 10/13/1999
443662 Landline SPARKS GLENCOE Cavalier Telephone Mid-atlantic 05/10/2001
443663 Landline GWYNN OAK Verizon Maryland 06/30/2001
443664 Landline OCEAN CITY Cavalier Telephone (mid-atlantic) 11/20/1998
443665 Landline NANTICOKE Cavalier Telephone (mid-atlantic) 11/20/1998
443666 Wireless PORT DEPOSIT Level 3 Communications 05/23/2012
443668 Wireless CATONSVILLE New Cingular Wireless PCS - DC 01/15/2001
443669 Landline DELMAR Cavalier Telephone (mid-atlantic) 11/20/1998
443670 Landline CATONSVILLE Cavalier Telephone Mid-atlantic 05/10/2001
443671 Landline NEW WINDSOR Teleport Communications America 02/27/1999
443672 Landline PARKTON Teleport Communications America 02/27/1999
443673 Landline LINTHICUM HEIGHTS Cavalier Telephone Mid-atlantic 05/10/2001
443674 Landline ELKTON Teleport Communications America 02/27/1999
443675 Landline RANDALLSTOWN Cavalier Telephone (mid-atlantic) 11/20/1998
443676 Wireless BALTIMORE New Cingular Wireless PCS - DC 06/20/2001
443677 Wireless BALTIMORE Sprint Spectrum L.p. 03/15/2001
443678 Landline PARKVILLE Verizon Maryland 08/20/2000
443679 Landline KINGSVILLE Teleport Communications America 08/14/1998
443680 Wireless BALTIMORE Sprint Spectrum L.p. 09/27/2010
443681 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 06/05/2009
443682 Landline BALTIMORE Cellco Partnership DBA Verizon Wireless 12/19/2006
443683 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 04/09/2007
443684 Wireless PORT REPUBLIC Cellco Partnership DBA Verizon Wireless 10/08/2008
443685 Landline SEVERN Cavalier Telephone (mid-atlantic) 11/20/1998
443686 Wireless FALLSTON Sprint Spectrum L.p. 05/10/2005
443687 Wireless SEVERN Cellco Partnership DBA Verizon Wireless 09/08/2009
443688 Landline SEVERN Cavalier Telephone Mid-atlantic 05/10/2001
443689 Landline HUNT VALLEY Cavalier Telephone Mid-atlantic 05/10/2001
443690 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 06/13/2000
443691 Wireless BALTIMORE New Cingular Wireless PCS - DC 01/15/2001
443692 Landline BALTIMORE Allegiance Telecom 06/13/2000
443693 Landline PERRYVILLE Teleport Communications America 02/27/1999
443694 Wireless SEVERNA PARK Sprint Spectrum L.p. 04/20/2001
443695 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 01/14/2000
443696 Landline DUNDALK Cavalier Telephone Mid-atlantic 05/10/2001
443697 Landline CATONSVILLE Global Naps South 01/14/2000
443698 Landline ODENTON Teleport Communications America 08/14/1998
443699 Wireless PIKESVILLE Cellco Partnership DBA Verizon Wireless 08/10/2011
443701 Landline HALETHORPE Xo Maryland 10/31/2000
443702 Landline GLEN BURNIE Cavalier Telephone Mid-atlantic 05/10/2001
443703 Landline BALTIMORE Xo Maryland 10/31/2000
443704 Landline ODENTON Cavalier Telephone Mid-atlantic 05/10/2001
443705 Landline HUNT VALLEY Xo Maryland 01/14/2000
443706 Landline CRISFIELD Cavalier Telephone (mid-atlantic) 11/20/1998
443707 Unknown BALTIMORE Local Access LLC
443708 Landline BALTIMORE Tw Telecom Of Maryland LLC 08/20/2000
443709 Landline HALETHORPE Cavalier Telephone Mid-atlantic 10/13/1999
443710 Landline BALTIMORE Xo Maryland 10/31/2000
443712 Landline GLYNDON Cavalier Telephone Mid-atlantic 10/31/2000
443713 Wireless COLUMBIA Peerless Network Of Maryland 09/19/2012
443714 Landline COLUMBIA Sprint Spectrum L.p. 09/30/2011
443715 Landline NORTH EAST Cavalier Telephone (mid-atlantic) 02/27/1999
443716 Landline ANNAPOLIS Cavalier Telephone Mid-atlantic 10/31/2000
443717 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 09/14/2005
443718 Landline COLUMBIA Us Lec Of Maryland 03/05/2008
443719 Landline JARRETTSVILLE Cavalier Telephone Mid-atlantic 10/31/2000
443720 Landline NORTH EAST Xo Maryland 11/27/2012
443721 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 07/06/2009
443722 Wireless BALTIMORE Omnipoint Communications Cap Operations 03/09/2001
443723 Landline BROOKLYN Sprint Spectrum L.p. 10/06/2011
443724 Landline EASTON Cavalier Telephone (mid-atlantic) 11/20/1998
443725 Landline BALTIMORE Paetec Communications 01/14/2000
443726 Landline TOWSON Sprint Spectrum L.p. 10/06/2011
443727 Landline BISHOPVILLE Cavalier Telephone (mid-atlantic) 11/20/1998
443728 Landline BERLIN Cavalier Telephone (mid-atlantic) 11/20/1998
443729 Landline BALTIMORE Paetec Communications 01/14/2000
443730 Landline BALTIMORE Paetec Communications 01/14/2000
443731 Landline PORT DEPOSIT Teleport Communications America 02/27/1999
443732 Landline TANEYTOWN Teleport Communications America 02/27/1999
443733 Landline BALTIMORE AT&T Local 10/31/2001
443734 Landline SEVERN Verizon Maryland 05/10/1999
443735 Wireless SALISBURY New Cingular Wireless PCS - DC 02/27/1999
443736 Wireless SALISBURY New Cingular Wireless PCS - DC 11/20/1998
443737 Landline BALTIMORE Paetec Communications 10/31/2001
443738 Landline BALTIMORE Paetec Communications 01/14/2000
443739 Wireless BALTIMORE Omnipoint Communications Cap Operations 07/23/2001
443740 Landline BALTIMORE Telcove Operations 02/03/2005
443741 Landline COLUMBIA Mci Worldcom Communications 03/29/2011
443742 Wireless BALTIMORE New Cingular Wireless PCS - DC 08/20/2000
443743 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 04/07/2008
443744 Wireless GLYNDON Sprint Spectrum L.p. 07/02/2002
443745 Wireless COLUMBIA Cellco Partnership DBA Verizon Wireless 11/20/1998
443746 Landline EASTON Level 3 Communications 02/22/2002
443747 Landline PORT DEPOSIT Core Communications 02/22/2002
443748 Landline MILLERSVILLE Cavalier Telephone Mid-atlantic 05/11/2001
443749 Landline BALTIMORE Cavalier Telephone Mid-atlantic 03/03/2001
443750 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 06/08/2010
443751 Landline GWYNN OAK Cavalier Telephone Mid-atlantic 05/11/2001
443752 Landline BEL AIR Cellco Partnership DBA Verizon Wireless 10/17/2001
443753 Landline ANNAPOLIS JUNCTION Allegiance Telecom 10/31/2000
443754 Wireless SALISBURY Cellco Partnership DBA Verizon Wireless 06/09/2010
443755 Landline ELKRIDGE Verizon Maryland 02/27/1999
443756 Wireless BALTIMORE New Cingular Wireless PCS - DC 08/20/2000
443757 Landline ELKRIDGE Cavalier Telephone Mid-atlantic 05/11/2001
443758 Landline ANNAPOLIS AT&T Local 08/14/1998
443759 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 10/29/2007
443760 Landline ABERDEEN AT&T Local 08/14/1998
443761 Wireless TOWSON Omnipoint Communications Cap Operations 05/28/2008
443762 Wireless ELKRIDGE Sprint Spectrum L.p. 01/10/2001
443763 Landline BALTIMORE Omnipoint Communications Cap Operations 05/18/1998
443764 Wireless GLEN BURNIE Omnipoint Communications Cap Operations 08/21/2008
443765 Wireless CATONSVILLE New Cingular Wireless PCS - DC 07/23/2001
443766 Landline COLUMBIA Us Lec Of Maryland 05/18/2005
443767 Landline GLYNDON Cavalier Telephone Mid-atlantic 05/11/2001
443768 Wireless ELKRIDGE Sprint Spectrum L.p. 05/18/2001
443769 Wireless BALTIMORE Omnipoint Communications Cap Operations 09/16/2008
443770 Landline PASADENA Verizon Maryland 03/03/2001
443771 Wireless PORT REPUBLIC Cellco Partnership DBA Verizon Wireless 09/08/2010
443772 Landline ESSEX Cavalier Telephone Mid-atlantic 07/23/2001
443773 Landline BALTIMORE Allegiance Telecom 08/20/2000
443774 Landline BALTIMORE Global Naps South 08/20/2000
443775 BALTIMORE
443776 Landline BALTIMORE Bandwidth.com Clec 01/17/2014
443777 Landline ROSEDALE Verizon Maryland 08/20/2000
443778 Landline LAUREL Verizon Maryland 05/18/1998
443779 Landline ABERDEEN Xo Maryland 06/30/2001
443780 Landline COLUMBIA Us Lec Of Maryland 07/23/2001
443781 Landline GLEN BURNIE Xo Maryland 01/14/2000
443782 Landline ANNAPOLIS Xo Maryland 01/14/2000
443783 Wireless BERLIN Cellco Partnership DBA Verizon Wireless 02/27/1999
443784 Landline BALTIMORE Teleport Communications America 02/27/1999
443785 Landline HALETHORPE Global Naps South 01/14/2000
443786 Wireless EASTON Cellco Partnership DBA Verizon Wireless 06/13/2000
443787 Landline BEL AIR Ctc Communications Corp. 01/14/2000
443788 Landline ABERDEEN Xo Maryland 01/14/2000
443789 Wireless WESTMINSTER New Cingular Wireless PCS - DC 08/20/2000
443790 Wireless GLEN BURNIE Sprint Spectrum L.p. 11/19/2001
443791 Wireless TOWSON New Cingular Wireless PCS - DC 08/20/2000
443792 Landline LINTHICUM HEIGHTS Verizon Maryland 10/18/2007
443793 Landline BALTIMORE Xo Maryland 10/31/2000
443794 Wireless BALTIMORE New Cingular Wireless PCS - DC 01/14/2000
443795 Landline BALTIMORE Xo Maryland 10/31/2000
443796 Landline BALTIMORE Xo Maryland 10/31/2000
443797 Landline BALTIMORE Xo Maryland 10/31/2000
443798 Landline TOWSON Tw Telecom Of Maryland LLC 05/10/1999
443799 Wireless BALTIMORE New Cingular Wireless PCS - DC 07/23/2001
443800 Wireless BALTIMORE Sprint Spectrum L.p. 01/31/2011
443801 Wireless ELKRIDGE Sprint Spectrum L.p. 07/22/1999
443802 Wireless ELKRIDGE Sprint Spectrum L.p. 07/22/1999
443803 Wireless COLUMBIA Sprint Spectrum L.p. 07/22/1999
443804 Wireless ELKRIDGE Sprint Spectrum L.p. 07/22/1999
443805 Wireless GLEN BURNIE Omnipoint Communications Cap Operations 07/24/2008
443806 Wireless BALTIMORE Sprint Spectrum L.p. 03/08/2006
443807 Wireless FALLSTON Sprint Spectrum L.p. 08/20/2000
443808 Landline BALTIMORE Bandwidth.com Clec 04/04/2014
443809 Unknown BALTIMORE Level 3 Communications
443810 Wireless BALTIMORE Sprint Spectrum L.p. 09/04/2008
443812 Wireless COLUMBIA Cellco Partnership DBA Verizon Wireless 01/15/2001
443813 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 09/14/2007
443814 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 06/15/2010
443815 Landline BALTIMORE Xo Maryland 10/31/2000
443816 Landline SEVERNA PARK Allegiance Telecom 10/31/2000
443817 Landline BALTIMORE Allegiance Telecom 10/31/2000
443818 Landline GLEN BURNIE Level 3 Communications 12/30/2005
443819 BALTIMORE
443820 Landline BALTIMORE Paetec Communications 05/18/1998
443821 Wireless WESTMINSTER Sprint Spectrum L.p. 07/13/2010
443822 Wireless EDGEWATER Sprint Spectrum L.p. 08/14/1998
443823 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 07/13/2006
443824 Wireless TOWSON Omnipoint Communications Cap Operations 05/18/2001
443825 Wireless BALTIMORE Omnipoint Communications Cap Operations 11/29/2006
443826 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 06/25/2010
443827 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 11/20/1998
443828 Landline ELLICOTT CITY Cavalier Telephone Mid-atlantic 05/11/2001
443829 Wireless BALTIMORE Sprint Spectrum L.p. 06/13/2000
443830 Landline CATONSVILLE Cavalier Telephone Mid-atlantic 08/21/2001
443831 Wireless HUNT VALLEY New Cingular Wireless PCS - DC 11/20/1998
443832 Landline BALTIMORE Level 3 Communications 07/22/1999
443833 Landline HALETHORPE Us Lec Of Maryland 03/03/2001
443834 Landline TOWSON Cavalier Telephone Mid-atlantic 10/13/1999
443835 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 12/11/2008
443836 Landline BALTIMORE Xo Maryland 01/14/2000
443837 Landline ANNAPOLIS Us Lec Of Maryland 09/24/2001
443838 Wireless MANCHESTER New Cingular Wireless PCS - DC 07/22/1999
443839 Wireless BALTIMORE Omnipoint Communications Cap Operations 04/17/2006
443840 Wireless CATONSVILLE New Cingular Wireless PCS - DC 05/04/2005
443841 Landline BALTIMORE Verizon Maryland 07/22/1999
443842 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 03/10/2011
443843 Landline HAVRE DE GRACE Verizon Maryland 07/22/1999
443844 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 02/13/2006
443845 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 02/27/1999
443846 Landline TOWSON New Cingular Wireless PCS - DC 03/03/2001
443847 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 10/12/2006
443848 Landline ELKRIDGE Sprint Spectrum L.p. 03/03/2001
443849 Landline TOWSON Verizon Maryland 05/18/2001
443850 Wireless BALTIMORE Omnipoint Communications Cap Operations 09/24/2001
443851 Wireless CATONSVILLE Omnipoint Communications Cap Operations 08/21/2001
443852 Wireless ANNAPOLIS New Cingular Wireless PCS - DC 08/21/2001
443853 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 07/27/2010
443854 Wireless BALTIMORE Omnipoint Communications Cap Operations 11/19/2001
443855 Landline ABERDEEN PROVING GROUND Lightwave Communications 05/20/2005
443856 Landline OCEAN CITY Core Communications 07/02/2002
443857 Wireless MOUNT AIRY Omnipoint Communications Cap Operations 06/13/2000
443858 Wireless BALTIMORE Omnipoint Communications Cap Operations 06/13/2000
443859 Wireless SALISBURY Omnipoint Communications Cap Operations 06/13/2000
443860 Wireless CATONSVILLE New Cingular Wireless PCS - DC 05/04/2005
443861 Landline ABERDEEN Verizon Maryland 08/13/2009
443862 Wireless DUNDALK Cellco Partnership DBA Verizon Wireless 10/07/2011
443863 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 08/09/2010
443864 Wireless COLUMBIA Sprint Spectrum L.p. 12/19/2001
443865 Wireless BALTIMORE Sprint Spectrum L.p. 04/19/2002
443866 Wireless BEL AIR Sprint Spectrum L.p. 07/02/2002
443867 Landline GLEN BURNIE Paetec Communications 10/13/1999
443868 Landline ROSEDALE Verizon Maryland 07/22/1999
443869 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 06/12/2006
443870 Landline PIKESVILLE Tw Telecom Of Maryland LLC 05/10/1999
443871 Wireless ANNAPOLIS Sprint Spectrum L.p. 11/20/1998
443872 Landline ELKRIDGE Cavalier Telephone Mid-atlantic 03/03/2001
443873 Landline PIKESVILLE Broadvox-clec 02/23/2010
443874 Landline BALTIMORE Cavalier Telephone Mid-atlantic 03/03/2001
443875 Landline ANNAPOLIS New Cingular Wireless PCS - DC 03/03/2001
443876 Landline BEL AIR Sprint Spectrum L.p. 03/03/2001
443877 Landline BEL AIR Level 3 Communications 10/13/1999
443878 Landline ELKRIDGE Cellco Partnership DBA Verizon Wireless 03/03/2001
443879 Landline ELKRIDGE Verizon Maryland 03/03/2001
443880 Landline SALISBURY AT&T Local 11/20/1998
443881 Wireless REISTERSTOWN Sprint Spectrum L.p. 09/26/2006
443882 Wireless BALTIMORE Sprint Spectrum L.p. 02/01/2011
443883 Landline BALTIMORE AT&T Local 08/14/1998
443884 Landline BALTIMORE Cavalier Telephone Mid-atlantic 03/03/2001
443885 Landline BALTIMORE Verizon Maryland 08/14/1998
443886 Landline BALTIMORE AT&T Local 08/14/1998
443887 Landline HANOVER Cavalier Telephone Mid-atlantic 05/05/2010
443888 Landline PRINCESS ANNE Cavalier Telephone (mid-atlantic) 01/06/2011
443889 Wireless GLEN BURNIE Omnipoint Communications Cap Operations 04/20/2001
443890 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 08/10/2011
443891 Landline BALTIMORE Xo Maryland 10/31/2000
443892 Landline NEW WINDSOR Bandwidth.com Clec 08/11/2011
443893 Landline BALTIMORE Xo Maryland 10/31/2000
443894 Wireless BALTIMORE Sprint Spectrum L.p. 06/30/2011
443895 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 04/09/2007
443896 Landline COLUMBIA AT&T Local 08/14/1998
443897 Wireless BALTIMORE Leap Wireless Intl DBA Cricket Comm 04/12/2011
443898 Landline PIKESVILLE Level 3 Communications 12/08/2005
443899 Landline ANNAPOLIS JUNCTION Broadwing Communications. LLC 03/03/2001
443900 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 05/23/2012
443901 Landline TOWSON Cavalier Telephone Mid-atlantic 08/21/2001
443902 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 01/06/2011
443903 Wireless BEL AIR Cellco Partnership DBA Verizon Wireless 09/07/2011
443904 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 10/17/2001
443905 Wireless ANNAPOLIS Sprint Spectrum L.p. 08/12/2011
443906 Landline SEVERNA PARK Peerless Network Of Maryland 09/20/2012
443907 Wireless ELKTON Cellco Partnership DBA Verizon Wireless 04/20/2001
443908 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 06/29/2011
443909 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 08/09/2006
443910 Wireless BEL AIR New Cingular Wireless PCS - DC 04/20/2001
443912 Landline TOWSON Core Communications 07/02/2002
443913 Wireless BALTIMORE Sprint Spectrum L.p. 06/30/2011
443914 Landline GLYNDON Teleport Communications America 02/27/1999
443915 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 09/07/2011
443916 Wireless BALTIMORE Sprint Spectrum L.p. 08/22/2011
443917 Wireless COLUMBIA Broadvox-clec 10/07/2011
443918 Landline TANEYTOWN Teleport Communications America 02/27/1999
443919 Landline BALTIMORE Cavalier Telephone Mid-atlantic 03/03/2001
443920 Landline SYKESVILLE Teleport Communications America 02/27/1999
443921 Landline BALTIMORE Paetec Communications 10/13/1999
443922 Landline EDGEWOOD Atx Telecommunications Services, Ltd 02/07/2006
443923 Landline BALTIMORE Cavalier Telephone Mid-atlantic 05/11/2001
443924 Wireless ANNAPOLIS Cellco Partnership DBA Verizon Wireless 07/06/2009
443925 Wireless BALTIMORE Omnipoint Communications Cap Operations 02/24/2006
443926 Landline ANNAPOLIS Broadwing Communications. LLC 08/20/2000
443927 Landline BALTIMORE Broadwing Communications. LLC 08/20/2000
443928 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 09/24/2001
443929 Wireless PIKESVILLE Omnipoint Communications Cap Operations 04/20/2001
443930 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 04/06/2011
443931 Landline BALTIMORE Mci Worldcom Communications 10/24/2011
443932 Wireless BALTIMORE Sprint Spectrum L.p. 08/22/2011
443933 Landline COCKEYSVILLE Teleport Communications America 04/20/2004
443934 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 12/04/2007
443935 Wireless TOWSON New Cingular Wireless PCS - DC 07/31/2006
443936 BALTIMORE
443937 Landline UNION BRIDGE Teleport Communications America 02/27/1999
443938 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 08/06/2007
443939 Wireless BALTIMORE Omnipoint Communications Cap Operations 09/23/2002
443940 Landline PIKESVILLE Cavalier Telephone Mid-atlantic 08/21/2001
443941 Wireless NORTH EAST New Cingular Wireless PCS - DC 09/07/2011
443942 Landline SEVERNA PARK Teleport Communications America 08/14/1998
443943 Landline BALTIMORE Teleport Communications America 08/14/1998
443944 Landline SALISBURY Comcast Phone Of Northern Maryland 06/08/2006
443945 Wireless ELKTON New Cingular Wireless PCS - DC 07/02/2002
443946 Landline PARKVILLE Xo Maryland 01/14/2000
443947 Landline PERRYVILLE Ctc Communications Corp. 01/14/2000
443948 Wireless BALTIMORE Sprint Spectrum L.p. 08/22/2011
443949 Landline ANNAPOLIS Comcast Phone Of Northern Maryland 06/28/2006
443951 Landline ANNAPOLIS Global Crossing Local Services-md 07/22/1999
443952 Wireless WESTMINSTER Cellco Partnership DBA Verizon Wireless 09/07/2011
443953 Wireless SALISBURY Cellco Partnership DBA Verizon Wireless 09/07/2011
443954 Landline BALTIMORE Paetec Communications 07/06/2005
443955 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 03/13/2006
443956 Wireless BALTIMORE New Cingular Wireless PCS - DC 01/14/2000
443957 Landline BALTIMORE AT&T Local 08/14/1998
443960 Wireless GLEN BURNIE Cellco Partnership DBA Verizon Wireless 10/07/2011
443961 PERRYVILLE
443962 Wireless GLEN BURNIE Cellco Partnership DBA Verizon Wireless 09/14/2007
443963 Wireless BALTIMORE Halo Wireless Services 12/01/2011
443964 Landline NORTH BEACH Level 3 Communications 05/12/2006
443965 Wireless BALTIMORE Sprint Spectrum L.p. 06/21/2006
443966 Wireless FALLSTON Cellco Partnership DBA Verizon Wireless 09/13/2006
443967 Landline ELKTON Verizon Maryland 04/20/2001
443968 Wireless PORT REPUBLIC New Cingular Wireless PCS - DC 07/22/1999
443969 Landline ESSEX Cavalier Telephone Mid-atlantic 05/11/2001
443970 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 11/21/2011
443971 Landline HUNT VALLEY Bandwidth.com Clec 02/16/2011
443972 Wireless CAMBRIDGE Us Lec Of Maryland 11/21/2011
443973 Landline ELKRIDGE Xo Maryland 06/30/2001
443974 Landline WESTMINSTER Teleport Communications America 02/27/1999
443975 Wireless SEVERNA PARK New Cingular Wireless PCS - DC 03/03/2001
443976 Unknown CROFTON Baltimore-washington Telephone (bwt)
443977 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 10/12/2006
443978 Wireless SALISBURY Cellco Partnership DBA Verizon Wireless 11/21/2011
443979 Wireless COLUMBIA Cellco Partnership DBA Verizon Wireless 11/21/2011
443980 Wireless CATONSVILLE New Cingular Wireless PCS - DC 10/13/1999
443981 Wireless FALLSTON Cellco Partnership DBA Verizon Wireless 11/21/2011
443982 Landline BALTIMORE Ymax Communications Corp. 05/30/2007
443983 Wireless BALTIMORE Omnipoint Communications Cap Operations 07/02/2002
443984 Landline BALTIMORE Verizon Maryland 10/31/2000
443985 Wireless RANDALLSTOWN Omnipoint Communications Cap Operations 06/20/2001
443986 Wireless BALTIMORE Cellco Partnership DBA Verizon Wireless 07/13/2006
443987 Landline BALTIMORE AT&T Local 11/20/1998
443988 Landline CENTREVILLE Level 3 Communications 06/08/2006
443989 Landline GLEN BURNIE Cavalier Telephone Mid-atlantic 05/11/2001
443990 Landline CATONSVILLE Bandwidth.com Clec 02/04/2011
443991 Wireless TOWSON Cellco Partnership DBA Verizon Wireless 12/01/2011
443992 Landline COLUMBIA Level 3 Communications 01/14/2000
443993 Wireless NORTH EAST Metro PCS 12/13/2010
443994 Wireless ANNAPOLIS New Cingular Wireless PCS - DC 11/20/1998
443995 Wireless EDGEWATER New Cingular Wireless PCS - DC 08/20/2000
443996 Wireless CATONSVILLE New Cingular Wireless PCS - DC 11/20/1998
443997 Landline COLUMBIA Verizon Maryland 03/03/2001
443998 Landline PARKVILLE Verizon Maryland 03/19/2001