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: 755

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-755 A Jewell OR JEWLORXADS0  2360 CENTURYTEL OF OREGON, INC. DBA CENTURYLINK 672      
503-755 0 Jewell OR JEWLORXADS0  2360 CENTURYTEL OF OREGON, INC. DBA CENTURYLINK 672      
503-755 1 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2017-11-03   
503-755 2 Jewell OR JEWLORXADS0  2360 CENTURYTEL OF OREGON, INC. DBA CENTURYLINK 672      
503-755 3 Jewell OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-11-26   
503-755 4 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-11-08   
503-755 5 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2013-09-15   
503-755 6 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2011-03-20   
503-755 7 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2008-09-21   
503-755 8 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-08-14   
503-755 9 Jewell OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-11-08   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.