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: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
325-343 A Robert Lee TX SANGTXXAX0X  903C ONVOY, LLC - TX 961      
325-343 0 Robert Lee TX SANGTXXAXOX  515J IP HORIZON LLC 961   2024-01-03   
325-343 1 Robert Lee TX SANGTXXAXOX  515J IP HORIZON LLC 961   2024-01-03   
325-343 2 Robert Lee TX SANGTXXAX0X  903C ONVOY, LLC - TX 961   2023-10-23   
325-343 3 Robert Lee TX SANGTXXAXLX  624H ONVOY SPECTRUM, LLC 961   2024-01-05   
325-343 8 Robert Lee TX   515J IP HORIZON LLC 961   2025-03-07   
325-343 9 Robert Lee TX   515J IP HORIZON LLC 961   2025-03-07   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.