Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-836 1 Astoria OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-836 2 Astoria OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-836 3 Astoria OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672      
503-836 4 Astoria OR ASTROR64DS0  9638 QWEST CORPORATION 672      
503-836 5 Astoria OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-836 6 Astoria OR   5562 METROPCS, INC. 672      
503-836 7 Astoria OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672      
503-836 8 Astoria OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
503-836 9 Astoria OR PTLDORWADS2  750E ONVOY, LLC - OR 672      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.