Local Calling Guide

Area code/prefix search

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NPA: 979 [Rate centres in NPA 979] [Dial plan for NPA 979]

NXX: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-478 A Wallis TX WALSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
979-478 2 Wallis TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
979-478 5 Wallis TX   903C ONVOY, LLC - TX 560   2021-03-18   
979-478 6 Wallis TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
979-478 7 Wallis TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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