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: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-592 A Canby-Needy OR PTLEORXMAMD  7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-592 0 Canby-Needy OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2008-11-29   
503-592 1 Canby-Needy OR PTLEORXMAMD  7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-592 2 Canby-Needy OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2017-10-02   
503-592 3 Canby-Needy OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2018-07-25   
503-592 4 Canby-Needy OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2022-07-15   
503-592 5 Canby-Needy OR THDLORXADMD  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672   2021-12-17   
503-592 6 Canby-Needy OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2020-04-20   
503-592 7 Canby-Needy OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2019-06-26   
503-592 8 Canby-Needy OR PTLDORWAXCY  647F ELTOPIA COMMUNICATIONS LLC - OR 672   2012-03-21   
503-592 9 Canby-Needy OR PTLDORWAXKY  936F ASTOUND BROADBAND, LLC - OR 672   2009-07-20   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.