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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-387 A Clackamas OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-387 0 Clackamas OR   5562 METRO PCS, INC. 672   2017-03-27   
503-387 1 Clackamas OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2017-04-27   
503-387 2 Clackamas OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-387 3 Clackamas OR   6064 COMCAST PHONE OF OREGON, LLC - OR 672   2006-09-14   
503-387 4 Clackamas OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-387 5 Clackamas OR   6064 COMCAST PHONE OF OREGON, LLC - OR 672   2006-09-14   
503-387 6 Clackamas OR   6064 COMCAST PHONE OF OREGON, LLC - OR 672   2014-05-26   
503-387 7 Clackamas OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2017-04-27   
503-387 8 Clackamas OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-387 9 Clackamas OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2017-04-27   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.