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: 993

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-993 A Keller TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
817-993 0 Keller TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
817-993 1 Keller TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
817-993 2 Keller TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2021-07-15   
817-993 3 Keller TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-27   
817-993 4 Keller TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2014-10-10   
817-993 5 Keller TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2014-10-10   
817-993 6 Keller TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-12-24   
817-993 7 Keller TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-15   
817-993 8 Keller TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-27   
817-993 9 Keller TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-02-21   

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

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