Local Calling Guide

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

NXX: 410

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-410 A St Helens OR PTLJORIY1MD  5562 METROPCS, INC. 672      
503-410 0 St Helens OR PTLJORIY1MD  5562 METROPCS, INC. 672   2004-07-19   
503-410 1 St Helens OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2009-10-19   
503-410 2 St Helens OR PTLJORIY1MD  5562 METROPCS, INC. 672   2007-10-13   
503-410 3 St Helens OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-02-21   
503-410 4 St Helens OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2010-06-05   
503-410 5 St Helens OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2010-06-09   
503-410 6 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2011-05-18   
503-410 7 St Helens OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2011-03-20   
503-410 8 St Helens OR PTLJORIY1MD  5562 METROPCS, INC. 672   2006-01-16   
503-410 9 St Helens OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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