Local Calling Guide

Area code/prefix search

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

NXX: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-529 A Fort Worth TX   903C ONVOY, LLC - TX 552      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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