Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-488 1 Salisbury MD SLBRMDXZ4MD  475J CALLWORKS CORPORATION 242   2024-07-11   
667-489 A Hampstead MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-08-04   
667-489 0 Hampstead MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-08-04   
667-489 1 Hampstead MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2025-05-17   
667-490 A Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-490 0 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-22   
667-490 1 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-22   
667-490 2 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-22   
667-490 3 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-22   
667-490 4 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-490 5 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-490 6 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-490 7 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-490 8 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-490 9 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-11   
667-491 A Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-03   
667-491 0 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-05   
667-491 1 Pikesville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-11-20   
667-491 2 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-04   
667-491 3 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-04   
667-491 4 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-04   
667-491 5 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-04   
667-491 6 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-04   
667-491 7 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-03   
667-491 8 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-03   
667-491 9 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-11-03   
667-492 A Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 0 Severn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-07-23   
667-492 1 Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 2 Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 3 Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 4 Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 5 Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 6 Severn MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2024-07-22   
667-492 7 Severn MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-06   
667-492 8 Severn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-07-23   
667-492 9 Severn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-07-23   
667-493 A Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-11-25   
667-493 0 Annapolis MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-01-15   
667-493 1 Annapolis MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-01-15   
667-493 2 Annapolis MD   876D ONVOY, LLC - MD 238   2025-04-06   
667-493 4 Annapolis MD   5562 METROPCS, INC. 238   2025-05-09   
667-493 5 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-25   
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   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-02-24   
667-494 1 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 2 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 3 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 4 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-03-31   
667-494 5 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 6 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 7 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-05-09   
667-494 8 Aberdeen MD   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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
667-495 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
667-495 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
667-495 4 Baltimore MD   490J DISH WIRELESS, LLC 238   2025-01-31   
667-495 5 Baltimore MD   490J DISH WIRELESS, LLC 238   2025-02-24   
667-495 6 Baltimore MD   490J DISH WIRELESS, LLC 238   2025-03-24   
667-495 7 Baltimore MD   490J DISH WIRELESS, LLC 238   2025-04-28   
667-495 8 Baltimore MD   490J DISH WIRELESS, LLC 238   2025-05-26   
667-495 9 Baltimore MD   490J DISH WIRELESS, LLC 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   876D ONVOY, LLC - MD 242   2025-05-10   
667-497 1 Ocean City MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2025-06-13   
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 9 Arbutus MD BLTMMDCH57Z  7421 AT&T - LOCAL 238   2025-01-17   
667-499 A Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 0 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-01   
667-499 1 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-01   
667-499 2 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-03-01   
667-499 3 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 4 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 5 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 6 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 7 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 8 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-16   
667-499 9 Pikesville MD CLMAMDORGT0  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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-02   
667-501 7 Dundalk MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-16   
667-501 8 Dundalk MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-02   
667-501 9 Dundalk MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-02-02   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.