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.

Big Lake, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
325-323 A SANGTXXAXJX  073H TELNYX LLC 961      
325-323 0   073H TELNYX LLC 961   2021-03-13   
325-323 1   515J IP HORIZON LLC 961   2022-03-07   
325-323 2   939H COMMIO, LLC 961   2022-07-15   
325-323 3   413F HILL COUNTRY TELECOMMUNICATIONS, LLC - TX 961   2023-12-09   
325-323 4   515J IP HORIZON LLC 961   2025-03-07   
325-323 5   624H ONVOY SPECTRUM, LLC 961   2024-01-05   
325-323 6   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 961   2021-05-07   
325-323 7   515J IP HORIZON LLC 961   2025-03-07   
325-323 8   515J IP HORIZON LLC 961   2024-01-03   
325-323 9   515J IP HORIZON LLC 961   2024-01-03   
325-394 A   7421 AT&T - LOCAL 961   2025-10-24   
325-394 9   7421 AT&T - LOCAL 961   2025-10-24   
325-884 A BGLKTXXARS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-884 0   903C ONVOY, LLC - TX 961   2020-08-14   
325-884 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-884 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-884 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-884 4   903C ONVOY, LLC - TX 961   2017-05-03   
325-884 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-884 6   903C ONVOY, LLC - TX 961   2020-08-14   
325-884 7   508J CENTURYLINK COMMUNICATIONS, LLC 961   2016-07-28   
325-884 8   7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 961   2017-01-16   
325-884 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.