Local Calling Guide

Area code/prefix search

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

NXX: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-971 A Fort Worth TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2024-08-11   
817-971 0 Fort Worth TX   903C ONVOY, LLC - TX 552   2025-02-02   
817-971 1 Fort Worth TX DLLSTX97XGX  490J DISH WIRELESS, LLC 552   2024-08-12   
817-971 2 Fort Worth TX DLLSTX97XGX  490J DISH WIRELESS, LLC 552   2024-09-09   
817-971 3 Fort Worth TX DLLSTXALEMD  732J NUSO, LLC 552   2024-08-12   
817-971 4 Fort Worth TX DLLSTXALEMD  732J NUSO, LLC 552   2024-08-12   
817-971 5 Fort Worth TX   6529 T-MOBILE USA, INC. 552   2025-02-24   
817-971 6 Fort Worth TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2024-08-11   
817-971 7 Fort Worth TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2024-08-11   
817-971 8 Fort Worth TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2024-08-11   
817-971 9 Fort Worth TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2024-08-11   

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

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