Local Calling Guide

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

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-374 A Tillamook OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-374 0 Tillamook OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-374 1 Tillamook OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2004-12-29   
503-374 2 Tillamook OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2018-01-15   
503-374 3 Tillamook OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2018-01-15   
503-374 4 Tillamook OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2018-01-15   
503-374 5 Tillamook OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2017-10-28   
503-374 6 Tillamook OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2017-10-28   
503-374 7 Tillamook OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-12-10   
503-374 8 Tillamook OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2017-08-25   
503-374 9 Tillamook OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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