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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-370 A Silverton OR THDLORXADMD  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
971-370 0 Silverton OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2017-06-19   
971-370 1 Silverton OR PTLDORWAX7Y  073H TELNYX LLC 672   2023-07-31   
971-370 2 Silverton OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2018-04-29   
971-370 3 Silverton OR PTLDOR13XGX  506J TWILIO INTERNATIONAL, INC. 672   2021-01-15   
971-370 4 Silverton OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672   2021-11-05   
971-370 5 Silverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2021-07-22   
971-370 6 Silverton OR THDLORXADMD  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672   2016-05-06   
971-370 7 Silverton OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-02-22   
971-370 8 Silverton OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2020-09-28   
971-370 9 Silverton OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2020-05-12   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.