Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 936 [Rate centres in NPA 936] [Dial plan for NPA 936]

NXX: 879

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
936-879 A Alto TX ALTOTXXORS0  2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-879 0 Alto TX ALTOTXXORS0  2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-879 1 Alto TX   793K TWC IP ENABLED SERVICES, LLC 560   2024-10-13   
936-879 6 Alto TX LFKNTXXA6MD  903C ONVOY, LLC - TX 560   2019-12-20   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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