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: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
325-331 A Brownwood TX SANHTX324MD  732J NUSO, LLC 961      
325-331 0 Brownwood TX BWWDTXXARMD  624H ONVOY SPECTRUM, LLC 961   2023-12-10   
325-331 1 Brownwood TX BWWDTXXARMD  624H ONVOY SPECTRUM, LLC 961   2023-12-10   
325-331 2 Brownwood TX SANHTX324MD  732J NUSO, LLC 961   2023-04-24   
325-331 3 Brownwood TX SANHTX324MD  732J NUSO, LLC 961   2023-11-23   
325-331 4 Brownwood TX BWWDTXXATMD  903C ONVOY, LLC - TX 961   2024-06-07   
325-331 5 Brownwood TX BWWDTXXATMD  903C ONVOY, LLC - TX 961   2024-07-15   
325-331 8 Brownwood TX BWWDTXXATMD  903C ONVOY, LLC - TX 961   2024-03-02   
325-331 9 Brownwood TX BWWDTXXATMD  903C ONVOY, LLC - TX 961   2024-03-02   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.