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: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-597 A Donna TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568      
956-597 0 Donna TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568      
956-597 1 Donna TX HRLNTXHG8MD  073H TELNYX LLC 568      
956-597 2 Donna TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568      
956-597 3 Donna TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568      
956-597 4 Donna TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-597 5 Donna TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-597 6 Donna TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-597 7 Donna TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-597 8 Donna TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-597 9 Donna TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.