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: 742

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-742 A Roanoke TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
817-742 0 Roanoke TX DLLSTX97X6X  145J TERRA NOVA TELECOM INC. 552   2026-03-29   
817-742 2 Roanoke TX   145J TERRA NOVA TELECOM INC. 552   2025-07-26   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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