Local Calling Guide

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

NXX: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-366 A Northrup TX NRUPTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-366 0 Northrup TX   903C ONVOY, LLC - TX 570   2015-08-19   
979-366 1 Northrup TX   903C ONVOY, LLC - TX 570   2021-03-14   
979-366 2 Northrup TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-366 3 Northrup TX   903C ONVOY, LLC - TX 570   2020-08-27   
979-366 4 Northrup TX   903C ONVOY, LLC - TX 570   2020-08-27   
979-366 6 Northrup TX   903C ONVOY, LLC - TX 570   2020-11-22   
979-366 7 Northrup TX   903C ONVOY, LLC - TX 570   2020-11-22   
979-366 8 Northrup TX   903C ONVOY, LLC - TX 570   2021-03-14   
979-366 9 Northrup TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      

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

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