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.

Detroit, OR

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
503-854 A DTRTORXARS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-854 0 PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-17   
503-854 1 PTLDORWADS2  750E ONVOY, LLC - OR 672   2014-01-02   
503-854 2 PTLDORWAXCY  647F ELTOPIA COMMUNICATIONS LLC - OR 672   2010-07-17   
503-854 3 DTRTORXARS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-854 4 PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-17   
503-854 5 PTLDORWADS2  750E ONVOY, LLC - OR 672   2014-01-02   
503-854 6 PTLDORWADS2  750E ONVOY, LLC - OR 672   2010-12-20   
503-854 7 PTLDORWADS2  750E ONVOY, LLC - OR 672   2007-04-15   
503-854 8 PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2014-02-17   
503-854 9 PTLDORWADS2  750E ONVOY, LLC - OR 672   2017-11-03   
971-365 A PTLDORWADS2  750E ONVOY, LLC - OR 672      
971-365 2 PTLDOR13XGX  506J TWILIO INTERNATIONAL, INC. 672   2021-01-15   
971-365 3 PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-12-21   
971-365 4 PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-08-14   
971-365 5 PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-12-21   
971-365 6 PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-08-14   
971-365 7 PTLDORWADS2  750E ONVOY, LLC - OR 672   2021-03-05   
971-365 8 PTLDORWADS2  750E ONVOY, LLC - OR 672   2021-03-05   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.