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: 979 [Rate centres in NPA 979] [Dial plan for NPA 979]

NXX: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-497 A Kurten TX BRYNTXXAXGX  624H ONVOY SPECTRUM, LLC 570      
979-497 0 Kurten TX BRYNTXEH2MD  939H COMMIO, LLC 570   2022-09-05   
979-497 2 Kurten TX BRYNTXXAQMD  903C ONVOY, LLC - TX 570   2023-07-22   
979-497 3 Kurten TX BRYNTXXAQMD  903C ONVOY, LLC - TX 570   2023-10-29   
979-497 4 Kurten TX BRYNTXXAXGX  624H ONVOY SPECTRUM, LLC 570   2021-07-27   
979-497 5 Kurten TX BRYNTXXAQMD  903C ONVOY, LLC - TX 570   2023-10-29   
979-497 6 Kurten TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570   2023-04-30   
979-497 7 Kurten TX BRYNTXXAXGX  624H ONVOY SPECTRUM, LLC 570   2021-12-04   
979-497 8 Kurten TX BRYNTXXAXGX  624H ONVOY SPECTRUM, LLC 570   2021-12-04   
979-497 9 Kurten TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570   2021-10-31   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.