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: 671

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-671 A Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
971-671 0 Knappa OR PTLDORWAX7Y  073H TELNYX LLC 672   2023-07-31   
971-671 1 Knappa OR HMTNOR210MD  352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2022-07-24   
971-671 2 Knappa OR PTLDOR13XGX  506J TWILIO INTERNATIONAL, INC. 672   2021-01-15   
971-671 4 Knappa OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2021-09-18   
971-671 6 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-03-28   
971-671 7 Knappa OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2020-03-28   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.