Local Calling Guide

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

NXX: 512

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-512 A Cresson EMS TX CRSNTXXARS0  2153 TEXAS WINDSTREAM, LLC 552      
817-512 0 Cresson EMS TX   2153 TEXAS WINDSTREAM, LLC 552      
817-512 1 Cresson EMS TX   903C ONVOY, LLC - TX 552   2021-04-12   
817-512 2 Cresson EMS TX   903C ONVOY, LLC - TX 552   2021-04-12   
817-512 3 Cresson EMS TX   2153 TEXAS WINDSTREAM, LLC 552      
817-512 4 Cresson EMS TX   2153 TEXAS WINDSTREAM, LLC 552      
817-512 5 Cresson EMS TX   903C ONVOY, LLC - TX 552   2021-02-14   
817-512 6 Cresson EMS TX   624H ONVOY SPECTRUM, LLC 552   2021-07-08   
817-512 7 Cresson EMS TX   903C ONVOY, LLC - TX 552   2021-10-03   
817-512 8 Cresson EMS TX   903C ONVOY, LLC - TX 552   2021-02-03   
817-512 9 Cresson EMS TX   903C ONVOY, LLC - TX 552   2021-02-03   

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

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