Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 508

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-508 A Euless TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
817-508 0 Euless TX   793K TWC IP ENABLED SERVICES, LLC 552      
817-508 1 Euless TX   145J TERRA NOVA TELECOM INC. 552   2022-05-23   
817-508 2 Euless TX   903C ONVOY, LLC - TX 552   2023-04-28   
817-508 3 Euless TX   516C AT&T CORP. 552   2015-10-05   
817-508 4 Euless TX   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552   2015-03-26   
817-508 5 Euless TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2010-11-08   
817-508 6 Euless TX   073H TELNYX LLC 552   2021-03-12   
817-508 7 Euless TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
817-508 8 Euless TX   516C AT&T CORP. 552   2011-05-02   
817-508 9 Euless TX   903C ONVOY, LLC - TX 552   2016-11-19   

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

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