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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
325-757 A Trent TX TRNTTXXAPS0  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 550      
325-757 0 Trent TX   0132 AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 550   2019-03-30   
325-757 1 Trent TX   004F BANDWIDTH.COM CLEC, LLC - TX 550   2019-04-29   
325-757 2 Trent TX   903C ONVOY, LLC - TX 550   2021-03-14   
325-757 3 Trent TX   073H TELNYX LLC 550   2021-04-09   
325-757 4 Trent TX   624H ONVOY SPECTRUM, LLC 550   2024-03-11   
325-757 7 Trent TX   903C ONVOY, LLC - TX 550   2017-03-24   
325-757 8 Trent TX   903C ONVOY, LLC - TX 550   2019-02-03   
325-757 9 Trent TX   1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 550   2016-09-10   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.