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: 386

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-386 A Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
503-386 0 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-11-10   
503-386 1 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-17   
503-386 2 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-17   
503-386 3 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-17   
503-386 4 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-11-08   
503-386 5 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2014-01-02   
503-386 6 Knappa OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-11-26   
503-386 7 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2008-11-02   
503-386 8 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2011-03-20   
503-386 9 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2014-01-02   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.