Local Calling Guide

Area code/prefix search

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

NXX: 491

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-491 A Sweeny-Old Ocean TX SWNYTXXARP0  2147 WINDSTREAM SUGAR LAND, LLC 560      
979-491 2 Sweeny-Old Ocean TX   2147 WINDSTREAM SUGAR LAND, LLC 560      
979-491 4 Sweeny-Old Ocean TX   2147 WINDSTREAM SUGAR LAND, LLC 560      
979-491 5 Sweeny-Old Ocean TX   2147 WINDSTREAM SUGAR LAND, LLC 560      
979-491 7 Sweeny-Old Ocean TX   624H ONVOY SPECTRUM, LLC 560   2021-07-11   
979-491 8 Sweeny-Old Ocean TX   2147 WINDSTREAM SUGAR LAND, LLC 560      
979-491 9 Sweeny-Old Ocean TX   903C ONVOY, LLC - TX 560   2019-07-10   

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

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