Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

NXX: 751

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-751 A Dallas OR INDPOR58DS0  9638 QWEST CORPORATION 672      
503-751 0 Dallas OR INDPOR58DS0  9638 QWEST CORPORATION 672      
503-751 1 Dallas OR HMTNOR210MD  352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2008-03-03   
503-751 2 Dallas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-06-13   
503-751 3 Dallas OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2014-01-02   
503-751 4 Dallas OR INDPOR58DS0  9638 QWEST CORPORATION 672      
503-751 5 Dallas OR INDPOR58DS0  9638 QWEST CORPORATION 672      
503-751 6 Dallas OR INDPOR58DS0  9638 QWEST CORPORATION 672      
503-751 7 Dallas OR INDPOR58DS0  9638 QWEST CORPORATION 672      
503-751 8 Dallas OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2014-01-02   
503-751 9 Dallas OR PTLDORWAXCY  647F ELTOPIA COMMUNICATIONS LLC - OR 672   2010-07-17   

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

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