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: 746

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-746 A Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-746 0 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-746 1 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-746 2 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-746 3 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-746 4 Beaverton OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
503-746 5 Beaverton OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
503-746 6 Beaverton OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
503-746 7 Beaverton OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
503-746 8 Beaverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-746 9 Beaverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.