Local Calling Guide

Area code/prefix search

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NPA: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 772

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-772 A Atlas TX   903C ONVOY, LLC - TX 552      
817-772 8 Atlas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2003-10-27   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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