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 |
| 227-218
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 227-218
| 0 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-02-19 |
|
| 227-218
| 1 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-02-19 |
|
| 227-218
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-02-19 |
|
| 227-218
| 3 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-02-19 |
|
| 227-218
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-05-16 |
|
| 227-218
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-05-16 |
|
| 227-218
| 6 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-06-06 |
|
| 227-218
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2023-12-03 |
|
| 227-218
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2023-12-03 |
|
| 227-218
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2023-12-03 |
|
| 227-238
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-20 |
|
| 227-238
| 0 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-07-12 |
|
| 227-238
| 1 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-07-12 |
|
| 227-238
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-07-12 |
|
| 227-238
| 7 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-11-04 |
|
| 227-238
| 8 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2024-11-02 |
|
| 227-238
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-20 |
|
| 227-257
| A |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-12-05 |
|
| 227-257
| 0 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-12-05 |
|
| 227-257
| 1 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-12-14 |
|
| 227-257
| 2 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-04-06 |
|
| 227-257
| 3 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-05-10 |
|
| 227-257
| 4 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-11-28 |
|
| 227-257
| 5 |
|
876D ONVOY, LLC - MD |
236 |
|
2026-06-13 |
|
| 227-257
| 8 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-12 |
|
| 227-257
| 9 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-09-06 |
|
| 240-206
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-206
| 0 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-206
| 1 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-04-18 |
|
| 240-206
| 2 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-206
| 3 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2005-08-15 |
|
| 240-206
| 4 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2005-08-15 |
|
| 240-206
| 5 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2007-09-13 |
|
| 240-206
| 6 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2008-02-15 |
|
| 240-206
| 7 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2008-10-01 |
|
| 240-206
| 8 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2007-11-01 |
|
| 240-206
| 9 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2006-03-14 |
|
| 240-232
| A |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-232
| 0 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-232
| 1 |
WASHDC127MD |
073H TELNYX LLC |
236 |
|
2021-07-29 |
|
| 240-232
| 2 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-13 |
|
| 240-232
| 3 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-10-10 |
|
| 240-232
| 4 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-09-24 |
|
| 240-232
| 5 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-10-17 |
|
| 240-232
| 6 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-02-26 |
|
| 240-232
| 7 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-05-20 |
|
| 240-232
| 8 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2014-06-06 |
|
| 240-232
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-10 |
|
| 240-245
| A |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
1 2 3 4 5 6 7 >>
Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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