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: 675

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-675 A Lyford TX HRLNTXDU5MD  490J DISH WIRELESS, LLC 568      
956-675 8 Lyford TX MCALTX935MD  073H TELNYX LLC 568   2022-05-02   
956-675 9 Lyford TX HRLNTXDU5MD  490J DISH WIRELESS, LLC 568   2022-05-01   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.