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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-750 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
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   792K CHARTER IP ENABLED SERVICES, LLC 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   
503-752 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 0 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 1 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 2 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 3 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 4 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 5 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 6 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 7 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 0 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 1 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 2 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 3 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 4 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 5 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 6 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 7 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 0 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 1 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 2 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 3 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 4 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 5 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 6 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 7 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-755 A Jewell OR JEWLORXADS0  2360 CENTURYTEL OF OREGON, INC. DBA CENTURYLINK 672      
503-755 0 Jewell OR JEWLORXADS0  2360 CENTURYTEL OF OREGON, INC. DBA CENTURYLINK 672      
503-755 1 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2017-11-03   
503-755 2 Jewell OR JEWLORXADS0  2360 CENTURYTEL OF OREGON, INC. DBA CENTURYLINK 672      
503-755 3 Jewell OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-11-26   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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