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: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 750

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-750 A Fort Worth TX   004F BANDWIDTH.COM CLEC, LLC - TX 552      
817-750 0 Fort Worth TX   004F BANDWIDTH.COM CLEC, LLC - TX 552      
817-750 1 Fort Worth TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
817-750 8 Fort Worth TX   6529 T-MOBILE USA, INC. 552   2025-02-24   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.