Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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London, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
325-377 A   515J IP HORIZON LLC 961   2025-04-04   
325-377 1   515J IP HORIZON LLC 961   2025-04-04   
325-377 2   515J IP HORIZON LLC 961   2025-04-04   
325-475 A LONDTXXARS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-475 0   903C ONVOY, LLC - TX 961   2021-02-03   
325-475 1   903C ONVOY, LLC - TX 961   2021-02-03   
325-475 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-475 3   624H ONVOY SPECTRUM, LLC 961   2023-04-27   
325-475 4   903C ONVOY, LLC - TX 961   2019-03-14   
325-475 5   413F HILL COUNTRY TELECOMMUNICATIONS, LLC - TX 961   2025-10-26   
325-475 6   515J IP HORIZON LLC 961   2024-01-03   
325-475 7   508J CENTURYLINK COMMUNICATIONS, LLC 961   2016-07-28   
325-475 8   515J IP HORIZON LLC 961   2024-01-03   
325-475 9   515J IP HORIZON LLC 961   2022-04-01   

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

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