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: 971 [Rate centres in NPA 971] [Dial plan for NPA 971]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-231 A Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672      
971-231 0 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672      
971-231 1 Gresham OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
971-231 2 Gresham OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
971-231 3 Gresham OR PTLDOR13DS4  157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2017-05-29   
971-231 4 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-06-04   
971-231 5 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-06-04   
971-231 6 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-06-04   
971-231 7 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2015-05-15   
971-231 8 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2015-05-15   
971-231 9 Gresham OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2015-05-15   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.