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]

Block: A

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-402 A Baltimore MD BLTMMDCHX7X  073H TELNYX LLC 238      
667-403 A Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-404 A Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-405 A Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-406 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-407 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-408 A Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
667-409 A Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-410 A Severn MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-412 A Easton MD SLBRMDSBX4Y  732J NUSO, LLC 242      
667-413 A Armiger-Gibson Island MD BLTMMDWLAMD  732J NUSO, LLC 238      
667-414 A Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-415 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
667-416 A Essex MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-417 A Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-418 A Greensboro MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
667-419 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-420 A Federalsburg MD SLBRMD908MD  490J DISH WIRELESS, LLC 242      
667-421 A Columbia MD BLTMMDCHX7X  073H TELNYX LLC 238      
667-422 A Baltimore MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238      
667-423 A Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-424 A Odenton MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
667-425 A Baltimore MD BLTMMDSNLMD  732J NUSO, LLC 238      
667-426 A Taneytown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-427 A West River MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-428 A Salisbury MD SLBRMDXZ5MD  732J NUSO, LLC 242      
667-429 A Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-430 A Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-431 A Arbutus MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
667-432 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-433 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-434 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-435 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-436 A Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-437 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-438 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-439 A Pikesville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-440 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-441 A Parkville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-442 A Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-443 A Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-444 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-445 A Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-446 A Elkridge MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-447 A Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-448 A Reisterstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-449 A Preston MD SLBRMD901MD  939H COMMIO, LLC 242      
667-450 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
667-451 A Fork MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-452 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      

<< 1 2 3 4 5 6 7 8 9 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.