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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-403 A Pharr TX HRLNTXHGFMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568      
956-403 0 Pharr TX HRLNTXFPDMD  776A VTX COMMUNICATIONS, LLC 568      
956-403 1 Pharr TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-403 2 Pharr TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-403 3 Pharr TX HRLNTXHGFMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568      
956-403 4 Pharr TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-403 5 Pharr TX MCALTXHBDS0  4866 SMARTCOM TELEPHONE, LLC 568      
956-403 6 Pharr TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-403 8 Pharr TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-403 9 Pharr TX HRLNTXKX7MD  5562 METROPCS, INC. 568      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.