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: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-957 A Edinburg TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-957 0 Edinburg TX HRLNTXHG8MD  073H TELNYX LLC 568      
956-957 1 Edinburg TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-957 2 Edinburg TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-957 3 Edinburg TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-957 4 Edinburg TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-957 5 Edinburg TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-957 6 Edinburg TX   515J IP HORIZON LLC 568      
956-957 7 Edinburg TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-957 8 Edinburg TX HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-957 9 Edinburg TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.