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NPA: 227 [Rate centres in NPA 227] [Dial plan for NPA 227]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-304 6 Washington Zone 10 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2026-01-15   
227-304 7 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-304 8 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-12-15   
227-304 9 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-12-15   
227-305 A Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
227-305 1 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-305 2 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-305 3 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-305 4 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-305 5 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-306 A Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2026-08-10   
227-306 0 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2026-08-10   
227-306 1 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2026-08-10   
227-306 2 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2026-08-10   
227-306 8 Leonardtown MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-08-11   
227-307 A Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-09-06   
227-307 8 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-09-07   
227-307 9 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-09-06   
227-308 A Washington Zone 3 MD   876D ONVOY, LLC - MD 236   2026-09-17   
227-308 0 Washington Zone 3 MD   876D ONVOY, LLC - MD 236   2026-09-17   
227-308 1 Washington Zone 3 MD   876D ONVOY, LLC - MD 236   2026-09-17   
227-309 A Washington Zone 13 MD   876D ONVOY, LLC - MD 236   2026-09-17   
227-309 0 Washington Zone 13 MD   876D ONVOY, LLC - MD 236   2026-09-17   
227-310 A Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2026-04-25   
227-310 3 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-27   
227-310 4 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-27   
227-310 5 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-27   
227-310 6 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-27   
227-310 7 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-27   
227-310 8 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-27   
227-310 9 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2026-04-25   
227-315 A Ashton MD   071F BANDWIDTH.COM CLEC, LLC - MD 236      
227-315 0 Ashton MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-06-06   
227-315 1 Ashton MD   876D ONVOY, LLC - MD 236   2026-08-23   
227-315 8 Ashton MD   876D ONVOY, LLC - MD 236   2026-07-24   
227-333 A Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-333 0 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-17   
227-333 1 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2026-05-08   
227-333 3 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-333 4 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-333 5 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-333 6 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-333 9 Washington Zone 16 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-06-07   
227-334 A Keedysville MD FRDRMDFRX2Y  7421 AT&T - LOCAL 240   2024-12-23   
227-334 0 Keedysville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2025-10-12   
227-334 1 Keedysville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2026-06-22   
227-334 4 Keedysville MD   145J TERRA NOVA TELECOM INC. 240   2025-02-13   
227-334 9 Keedysville MD FRDRMDFRX2Y  7421 AT&T - LOCAL 240   2024-12-23   
227-338 A Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-12-04   
227-338 0 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 1 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 2 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 3 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 4 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 5 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 6 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 7 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 8 Washington Zone 10 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-23   
227-338 9 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-12-04   
227-368 A Mechanicsville MD WASHDCSWFMD  530H WIDE VOICE, LLC - MD 236      
227-368 0 Mechanicsville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-03-07   
227-368 1 Mechanicsville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-12   
227-368 6 Mechanicsville MD WASHDCSWFMD  530H WIDE VOICE, LLC - MD 236   2023-10-21   
227-444 A Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-444 0 Washington Zone 2 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-444 1 Washington Zone 2 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-444 2 Washington Zone 2 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-444 3 Washington Zone 2 MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-444 4 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-444 5 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-444 6 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-444 7 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-16   
227-444 8 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-19   
227-444 9 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2025-10-19   
227-500 A Gaithersburg MD WASHDC12X6X  824J OPENTACT INC. 236   2026-05-09   
227-500 0 Gaithersburg MD WASHDC12X6X  824J OPENTACT INC. 236   2026-05-09   
227-500 1 Gaithersburg MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-05-11   
227-500 2 Gaithersburg MD   876D ONVOY, LLC - MD 236   2026-08-20   
227-500 3 Gaithersburg MD   876D ONVOY, LLC - MD 236   2026-08-20   
227-500 4 Gaithersburg MD   876D ONVOY, LLC - MD 236   2026-08-20   
227-500 5 Gaithersburg MD   876D ONVOY, LLC - MD 236   2026-08-20   
227-500 8 Gaithersburg MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2026-07-07   
227-500 9 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2026-05-30   
227-529 A Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2026-02-20   
227-529 0 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2026-02-20   
227-529 1 Gaithersburg MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2026-02-27   
227-529 5 Gaithersburg MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2026-03-07   
227-529 6 Gaithersburg MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-05-02   
227-529 7 Gaithersburg MD CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-04-20   
227-529 8 Gaithersburg MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-04-11   
227-529 9 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2026-02-20   
227-666 A Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2026-02-17   
227-666 0 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2026-02-17   
227-666 1 Frederick MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2026-06-06   
227-666 5 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2026-06-01   
227-666 6 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2026-02-17   
227-666 7 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2026-06-01   
227-666 8 Frederick MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2026-07-13   
227-666 9 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2026-06-13   
227-722 A Waldorf MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-06-26   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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