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: 325 [Rate centres in NPA 325] [Dial plan for NPA 325]

NXX: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
325-770 A Junction TX BWWDTXXATMD  903C ONVOY, LLC - TX 961      
325-770 0 Junction TX   903C ONVOY, LLC - TX 961   2020-09-13   
325-770 1 Junction TX   903C ONVOY, LLC - TX 961   2020-09-13   
325-770 2 Junction TX   903C ONVOY, LLC - TX 961   2021-02-03   
325-770 3 Junction TX   903C ONVOY, LLC - TX 961   2021-02-03   
325-770 4 Junction TX   939H COMMIO, LLC 961   2022-09-22   
325-770 5 Junction TX   624H ONVOY SPECTRUM, LLC 961   2023-04-27   
325-770 6 Junction TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 961   2019-09-21   
325-770 7 Junction TX   903C ONVOY, LLC - TX 961   2019-09-20   
325-770 8 Junction TX   903C ONVOY, LLC - TX 961   2019-09-20   
325-770 9 Junction TX   6529 T-MOBILE USA, INC. 961   2021-09-14   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.