Local Calling Guide
Area code/prefix search
Washington Zone 3, MD
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-867
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-03-29 |
|
| 240-867
| 8 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-867
| 9 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-893
| A |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
|
|
| 240-945
| A |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
|
|
| 240-945
| 0 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-09-23 |
|
| 240-945
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-09-23 |
|
| 240-945
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-01-07 |
|
| 240-945
| 3 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-01-07 |
|
| 240-945
| 4 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-01-07 |
|
| 240-945
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-01-07 |
|
| 240-945
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-09-23 |
|
| 240-945
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-09-23 |
|
| 240-945
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-09-23 |
|
| 240-945
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-09-23 |
|
| 240-963
| A |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
|
|
| 240-963
| 0 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-12-18 |
|
| 240-963
| 1 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-12-18 |
|
| 240-963
| 2 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-12-18 |
|
| 240-963
| 3 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-12-18 |
|
| 240-963
| 4 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2026-07-13 |
|
| 240-963
| 5 |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2023-04-07 |
|
| 240-963
| 6 |
|
876D ONVOY, LLC - MD |
236 |
|
2026-08-20 |
|
| 240-963
| 7 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-02-26 |
|
| 240-963
| 8 |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2022-12-19 |
|
| 240-963
| 9 |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2022-12-19 |
|
| 240-988
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 0 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 3 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-988
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-997
| A |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-997
| 0 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-997
| 1 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-997
| 2 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2004-06-18 |
|
| 240-997
| 3 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2004-09-20 |
|
| 240-997
| 4 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2004-09-20 |
|
| 240-997
| 5 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2004-09-20 |
|
| 240-997
| 6 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-997
| 7 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2004-09-20 |
|
| 240-997
| 8 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2005-02-03 |
|
| 240-997
| 9 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 301-213
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 301-213
| 0 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
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Last updated: Sat, 01 Aug 2026 03:19:33 UTC
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