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: 908

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-908 A Clackamas OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
503-908 0 Clackamas OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2008-01-01   
503-908 1 Clackamas OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2010-10-25   
503-908 2 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-06-13   
503-908 3 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-06-13   
503-908 4 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-06-13   
503-908 5 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-06-13   
503-908 6 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-06-13   
503-908 7 Clackamas OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2012-07-29   
503-908 8 Clackamas OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2013-11-13   
503-908 9 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2015-05-15   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.