Local Calling Guide
Area code/prefix search
Gaithersburg, MD
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-654
| 1 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2008-05-15 |
|
| 240-654
| 2 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2006-07-10 |
|
| 240-654
| 3 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2008-03-28 |
|
| 240-654
| 4 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2008-03-28 |
|
| 240-654
| 5 |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2009-07-24 |
|
| 240-654
| 6 |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2009-07-24 |
|
| 240-654
| 7 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2008-07-17 |
|
| 240-654
| 8 |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2008-08-08 |
|
| 240-654
| 9 |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2008-08-08 |
|
| 240-658
| A |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
|
|
| 240-658
| 0 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2019-01-25 |
|
| 240-658
| 1 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2019-01-25 |
|
| 240-658
| 2 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2019-01-25 |
|
| 240-658
| 3 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2019-01-25 |
|
| 240-658
| 4 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2019-01-25 |
|
| 240-658
| 5 |
BTVLMD127MD |
5562 METROPCS, INC. |
236 |
|
2019-11-29 |
|
| 240-658
| 6 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2019-01-25 |
|
| 240-658
| 7 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-658
| 8 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-02-18 |
|
| 240-658
| 9 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-02-18 |
|
| 240-683
| A |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| A |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 0 |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 1 |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 2 |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 3 |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 4 |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 5 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-08-12 |
|
| 240-686
| 6 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2014-06-20 |
|
| 240-686
| 7 |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-686
| 8 |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2007-07-28 |
|
| 240-686
| 9 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2014-09-19 |
|
| 240-690
| A |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 240-690
| 0 |
WASHDC127MD |
073H TELNYX LLC |
236 |
|
2017-03-14 |
|
| 240-690
| 1 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2017-01-25 |
|
| 240-690
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2018-06-14 |
|
| 240-690
| 3 |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
2017-01-09 |
|
| 240-690
| 4 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2017-03-10 |
|
| 240-690
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-15 |
|
| 240-690
| 6 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-15 |
|
| 240-690
| 7 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2019-05-27 |
|
| 240-690
| 8 |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2019-08-28 |
|
| 240-690
| 9 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2018-12-24 |
|
| 240-702
| A |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-702
| 0 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2015-07-22 |
|
| 240-702
| 1 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-12-01 |
|
| 240-702
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-12-01 |
|
| 240-702
| 3 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2015-10-15 |
|
| 240-702
| 4 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2014-11-24 |
|
| 240-702
| 5 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2014-11-24 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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