Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Washington Zone 1, DC

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
771-239 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-240 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-240 0   850D ONVOY, LLC - DC 236   2024-01-09   
771-240 1   850D ONVOY, LLC - DC 236   2024-01-09   
771-240 2   850D ONVOY, LLC - DC 236   2024-01-09   
771-240 3   850D ONVOY, LLC - DC 236   2024-01-09   
771-240 4   850D ONVOY, LLC - DC 236   2024-01-09   
771-240 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-240 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-240 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-240 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-240 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-241 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-02-17   
771-241 0   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-02-17   
771-241 1   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 2   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 3   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 4   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 5   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 6   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 7   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 8   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-241 9   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-10-30   
771-242 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-06-15   
771-242 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-242 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-02-24   
771-243 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-243 0   850D ONVOY, LLC - DC 236   2024-07-21   
771-243 1   850D ONVOY, LLC - DC 236   2024-07-21   
771-243 2   850D ONVOY, LLC - DC 236   2024-07-21   
771-243 3   197D VONAGE AMERICA LLC 236   2024-07-21   
771-243 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-243 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-243 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-243 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-243 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-243 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-07-20   
771-244 A VINNVACBDS0  850D ONVOY, LLC - DC 236   2024-08-09   
771-244 0   850D ONVOY, LLC - DC 236   2024-08-09   
771-244 1   850D ONVOY, LLC - DC 236   2024-08-09   
771-244 2   850D ONVOY, LLC - DC 236   2024-08-09   
771-244 3   850D ONVOY, LLC - DC 236   2024-08-09   
771-244 4   850D ONVOY, LLC - DC 236   2024-08-09   
771-244 5   850D ONVOY, LLC - DC 236   2024-08-09   
771-244 6   074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-08-10   
771-244 7   478J NUSO, LLC 236   2024-08-10   
771-244 8   478J NUSO, LLC 236   2024-08-10   
771-244 9   478J NUSO, LLC 236   2024-08-10   
771-245 A WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-09-14   
771-245 0   074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-09-14   
771-245 1   074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-09-14   
771-245 2   074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-09-14   
771-245 3   074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-09-14   
771-245 4   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-09-15   
771-245 5   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2024-09-15   
771-245 6   490J DISH WIRELESS, LLC 236   2024-09-16   
771-245 7   490J DISH WIRELESS, LLC 236   2024-10-28   
771-245 8   616J LEAP TELECOM, LLC 236   2025-07-21   
771-245 9   490J DISH WIRELESS, LLC 236   2025-01-20   
771-246 A VINNVACBDS0  850D ONVOY, LLC - DC 236   2024-12-06   
771-246 0   850D ONVOY, LLC - DC 236   2024-12-06   
771-246 1   850D ONVOY, LLC - DC 236   2024-12-06   
771-246 2   850D ONVOY, LLC - DC 236   2024-12-06   
771-246 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-246 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-246 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-246 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-246 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-246 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-246 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-07   
771-247 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2025-01-18   
771-247 0   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2025-11-03   
771-247 1   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2025-11-03   
771-247 2   073H TELNYX LLC 236   2025-01-20   
771-247 3   073H TELNYX LLC 236   2025-01-20   
771-247 4   073H TELNYX LLC 236   2025-01-20   
771-247 5   850D ONVOY, LLC - DC 236   2025-01-20   
771-247 6   850D ONVOY, LLC - DC 236   2025-01-20   
771-247 7   850D ONVOY, LLC - DC 236   2025-01-20   
771-247 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-01-20   
771-247 9   073H TELNYX LLC 236   2025-01-20   
771-248 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-30   
771-248 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-31   
771-248 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-31   
771-248 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-31   
771-248 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-31   
771-248 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-31   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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