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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
667-493 8 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-10-06   
667-493 9 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-11-25   
667-494 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-12-26   
667-494 0 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-02-24   
667-494 1 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 2 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 3 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 4 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 6 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-12-26   
667-495 A Baltimore MD BLTQMD01GMD  616J LEAP TELECOM, LLC 238   2024-12-28   
667-495 0 Baltimore MD BLTQMD01GMD  616J LEAP TELECOM, LLC 238   2024-12-28   
667-495 1 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
667-495 2 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
667-495 3 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
667-495 4 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2025-01-31   
667-495 5 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2025-02-24   
667-495 6 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2025-03-24   
667-495 7 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2025-04-28   
667-495 8 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2025-05-26   
667-495 9 Baltimore MD BLTQMD019MD  490J BOOST SUBSCRIBERCO L.L.C. 238   2025-06-23   
667-496 A Salisbury MD SLBRMD90EMD  616J LEAP TELECOM, LLC 242   2025-01-02   
667-496 0 Salisbury MD SLBRMD90EMD  616J LEAP TELECOM, LLC 242   2025-01-02   
667-497 A Ocean City MD SLBRMDSBX8Y  7421 AT&T - LOCAL 242   2024-12-23   
667-497 0 Ocean City MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2025-05-10   
667-497 1 Ocean City MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2025-06-13   
667-497 2 Ocean City MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2025-07-31   
667-497 3 Ocean City MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2026-07-31   
667-497 9 Ocean City MD SLBRMDSBX8Y  7421 AT&T - LOCAL 242   2024-12-23   
667-498 A Arbutus MD BLTMMDCH57Z  7421 AT&T - LOCAL 238   2025-01-17   
667-498 1 Arbutus MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-05-30   
667-498 9 Arbutus MD BLTMMDCH57Z  7421 AT&T - LOCAL 238   2025-01-17   
667-499 A Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 0 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-01   
667-499 1 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-01   
667-499 2 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-01   
667-499 3 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 4 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 5 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 6 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 7 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 8 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 9 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-500 A Annapolis MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-500 0 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-23   
667-500 1 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-23   
667-500 2 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-11-22   
667-500 3 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-08-05   
667-500 4 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-08-05   
667-500 5 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-23   
667-500 6 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-30   
667-500 7 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-30   
667-500 8 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-30   
667-500 9 Annapolis MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-30   
667-501 A Dundalk MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-02   
667-501 7 Dundalk MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-16   
667-501 8 Dundalk MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-02   
667-501 9 Dundalk MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-02   
667-502 A Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-10   
667-502 0 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-10-13   
667-502 1 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2026-01-04   
667-502 2 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-06-13   
667-502 3 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-07-21   
667-502 4 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2026-06-29   
667-502 5 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-03-02   
667-502 6 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-10   
667-502 7 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-10   
667-502 8 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-10   
667-502 9 Columbia MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-10   
667-503 A Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2025-03-22   
667-503 0 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2025-03-22   
667-503 1 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2025-03-22   
667-503 2 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2025-03-22   
667-503 3 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2025-03-22   
667-503 4 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2025-03-22   
667-503 5 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-24   
667-503 6 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-03-24   
667-503 7 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-03-24   
667-503 8 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-03-24   
667-503 9 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-03-24   
667-504 A Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 0 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-28   
667-504 1 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-28   
667-504 2 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-28   
667-504 3 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 4 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 5 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 6 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 7 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 8 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-504 9 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-27   
667-505 A Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-06   
667-505 0 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-07   
667-505 1 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-07   
667-505 2 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-07   
667-505 3 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-07   
667-505 4 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-07   

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

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