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: 487

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-487 A Newberg OR PTLGORIAAMD  8656 GLOBAL CROSSING LOCAL SERVICES, INC. - OR 672      
503-487 0 Newberg OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2005-10-24   
503-487 1 Newberg OR PTLGORIAAMD  8656 GLOBAL CROSSING LOCAL SERVICES, INC. - OR 672      
503-487 2 Newberg OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2021-11-26   
503-487 3 Newberg OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2005-10-24   
503-487 4 Newberg OR PTLGORIAAMD  8656 GLOBAL CROSSING LOCAL SERVICES, INC. - OR 672      
503-487 5 Newberg OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-07-28   
503-487 6 Newberg OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2006-05-07   
503-487 7 Newberg OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-14   
503-487 8 Newberg OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-07-28   
503-487 9 Newberg OR PTLGORIAAMD  8656 GLOBAL CROSSING LOCAL SERVICES, INC. - OR 672      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.