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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-543 4 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 5 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 6 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 7 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 8 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 9 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 A Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 0 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 1 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 2 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 3 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 4 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 5 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 6 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 7 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 8 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 9 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-545 A Warwick MD ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-545 0 Warwick MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-545 1 Warwick MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-545 2 Warwick MD SLBRMD90DS0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-545 3 Warwick MD SLBRMD90DS0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-545 4 Warwick MD SLBRMD90DS0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-545 5 Warwick MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-545 6 Warwick MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-02   
667-545 7 Warwick MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-02   
667-545 8 Warwick MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-10   
667-545 9 Warwick MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-10   
667-546 A Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-05-30   
667-546 0 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-05-30   
667-546 1 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-05-30   
667-546 7 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-07-04   
667-546 8 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-07-04   
667-546 9 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-07-04   
667-547 A Baltimore MD BLTMMDSNOMD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 238   2026-07-21   
667-547 1 Baltimore MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2026-08-08   
667-547 2 Baltimore MD   490J BOOST SUBSCRIBERCO L.L.C. 238   2026-08-13   
667-547 5 Baltimore MD BLTMMDSNOMD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 238   2026-07-21   
667-547 6 Baltimore MD   490J BOOST SUBSCRIBERCO L.L.C. 238   2026-09-21   
667-547 7 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2026-10-26   
667-547 8 Baltimore MD   876D ONVOY, LLC - MD 238   2026-07-22   
667-547 9 Baltimore MD   876D ONVOY, LLC - MD 238   2026-07-22   
667-548 A Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2026-07-23   
667-548 0 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2026-07-23   
667-549 A Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-549 0 Annapolis MD   876D ONVOY, LLC - MD 238   2026-07-24   
667-549 3 Annapolis MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-07-03   
667-549 4 Annapolis MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-07-03   
667-549 5 Annapolis MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-07-03   
667-549 6 Annapolis MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-07-03   
667-549 7 Annapolis MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-06-26   
667-550 A Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-550 4 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-550 5 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-550 6 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-550 7 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-550 8 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-550 9 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-21   
667-551 A Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 0 Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 1 Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 2 Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 3 Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 4 Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 5 Annapolis MD   876D ONVOY, LLC - MD 238   2026-08-29   
667-551 6 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-31   
667-551 7 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-31   
667-551 8 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-31   
667-551 9 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-31   
667-552 A Severna Park MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-22   
667-552 8 Severna Park MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-22   
667-552 9 Severna Park MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-22   
667-553 A Sudlersville MD   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 242   2026-09-29   
667-553 8 Sudlersville MD   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 242   2026-09-29   
667-566 A Stevensville MD SLBRMDXZ0MD  939H COMMIO, LLC 242      
667-566 0 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2023-10-22   
667-566 1 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2023-10-22   
667-566 2 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2023-10-22   
667-566 3 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2023-10-22   
667-566 4 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2023-10-22   
667-566 6 Stevensville MD SLBRMDXZ0MD  939H COMMIO, LLC 242   2022-11-18   
667-566 7 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2024-05-03   
667-566 8 Stevensville MD SLBRMD901MD  939H COMMIO, LLC 242   2023-12-21   
667-566 9 Stevensville MD SLBRMD901MD  939H COMMIO, LLC 242   2023-12-21   
667-567 A Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-567 0 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-567 1 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-567 2 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
667-567 3 Havre de Grace MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-01-01   
667-567 4 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-567 5 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-567 6 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-22   
667-567 7 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-567 8 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-567 9 Havre de Grace MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-576 A Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-576 1 Jarrettsville MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2022-09-08   
667-576 2 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-11   
667-576 3 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-11   
667-576 4 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-11-24   

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

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