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: 945

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-945 A Fort Worth TX   903C ONVOY, LLC - TX 552      
817-945 0 Fort Worth TX   4009 MILLENNIUM TELCOM, LLC DBA ONESOURCE COMM. - TX 552   2006-03-10   
817-945 1 Fort Worth TX   792K CHARTER IP ENABLED SERVICES, LLC 552   2012-08-07   
817-945 2 Fort Worth TX   792K CHARTER IP ENABLED SERVICES, LLC 552   2012-09-20   
817-945 3 Fort Worth TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-12-07   
817-945 4 Fort Worth TX   903C ONVOY, LLC - TX 552   2021-07-15   
817-945 5 Fort Worth TX   903C ONVOY, LLC - TX 552   2021-07-15   
817-945 6 Fort Worth TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-12-07   
817-945 7 Fort Worth TX   903C ONVOY, LLC - TX 552   2012-12-14   
817-945 8 Fort Worth TX   903C ONVOY, LLC - TX 552   2012-12-14   
817-945 9 Fort Worth TX   903C ONVOY, LLC - TX 552   2012-12-14   

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

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