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: 904

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-904 A Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
817-904 1 Acton TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2020-12-14   
817-904 2 Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2010-06-15   
817-904 3 Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-08-16   
817-904 4 Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-08-16   
817-904 5 Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-08-16   
817-904 7 Acton TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2014-12-22   
817-904 8 Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-09-26   
817-904 9 Acton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-09-26   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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