Local Calling Guide

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

NXX: 836

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-836 A Astoria OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-836 0 Astoria OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-836 1 Astoria OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-836 2 Astoria OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2011-04-26   
503-836 3 Astoria OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-08-12   
503-836 4 Astoria OR   9638 QWEST CORPORATION 672   2011-04-06   
503-836 5 Astoria OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2012-08-25   
503-836 6 Astoria OR   5562 METROPCS, INC. 672   2012-09-25   
503-836 7 Astoria OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-06-04   
503-836 8 Astoria OR   750E ONVOY, LLC - OR 672   2020-11-10   
503-836 9 Astoria OR   750E ONVOY, LLC - OR 672   2011-01-08   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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