Local Calling Guide

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

NXX: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-400 A Salem OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-400 0 Salem OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2008-05-23   
503-400 1 Salem OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2008-06-23   
503-400 2 Salem OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2008-07-23   
503-400 3 Salem OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2008-06-27   
503-400 4 Salem OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2014-10-02   
503-400 5 Salem OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2014-10-02   
503-400 6 Salem OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2008-07-17   
503-400 7 Salem OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2008-07-17   
503-400 8 Salem OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2008-07-06   
503-400 9 Salem OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2008-03-14   

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

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