Local Calling Guide
Area code/prefix search
Washington Zone 14, MD
<< 1 2 3 4 5 6 7 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-245
| A |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-245
| 0 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2008-12-13 |
|
| 240-245
| 1 |
WASHDCSW00Z |
829J PAETEC ITEL, LLC |
236 |
|
2006-01-14 |
|
| 240-245
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2012-10-07 |
|
| 240-245
| 3 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2007-05-02 |
|
| 240-245
| 4 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2006-10-21 |
|
| 240-245
| 5 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-245
| 6 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-245
| 7 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-05-20 |
|
| 240-245
| 8 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-245
| 9 |
|
515J IP HORIZON LLC |
236 |
|
2013-09-06 |
|
| 240-260
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-260
| 0 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-260
| 1 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-260
| 2 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-260
| 3 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2017-11-13 |
|
| 240-260
| 4 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-260
| 5 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-260
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-260
| 7 |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2017-10-01 |
|
| 240-260
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2018-10-22 |
|
| 240-260
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2023-06-30 |
|
| 240-266
| A |
SLSPMD91DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-266
| 0 |
SLSPMD91DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-266
| 1 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2021-10-07 |
|
| 240-266
| 2 |
WASHDC12MMD |
516J TON80 COMMUNICATIONS, LLC |
236 |
|
2021-06-10 |
|
| 240-266
| 3 |
SLSPMD91DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2020-04-19 |
|
| 240-266
| 4 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-09-10 |
|
| 240-266
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-09-24 |
|
| 240-266
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2023-10-31 |
|
| 240-266
| 7 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-266
| 8 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-09-24 |
|
| 240-266
| 9 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-04-30 |
|
| 240-334
| A |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-334
| 0 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2024-10-19 |
|
| 240-334
| 1 |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2013-06-16 |
|
| 240-334
| 2 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2013-10-25 |
|
| 240-334
| 4 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-334
| 6 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-334
| 7 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2014-06-06 |
|
| 240-334
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-09-16 |
|
| 240-334
| 9 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2024-10-19 |
|
| 240-335
| A |
WASHDCSW01Z |
829J PAETEC ITEL, LLC |
236 |
|
2025-04-02 |
|
| 240-335
| 0 |
WASHDCSW01Z |
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-335
| 1 |
WASHDCSW01Z |
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-335
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-10-24 |
|
| 240-335
| 3 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-10-24 |
|
| 240-335
| 4 |
WASHDCSW01Z |
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-335
| 5 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2020-05-20 |
|
| 240-335
| 6 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2020-05-20 |
|
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Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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