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: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-940 A Portland OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672      
971-940 0 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2016-07-16   
971-940 1 Portland OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2017-05-27   
971-940 2 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-10-16   
971-940 3 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-10-31   
971-940 4 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-10-31   
971-940 5 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-05-31   
971-940 6 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-06-11   
971-940 7 Portland OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2016-07-15   
971-940 8 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-06-30   
971-940 9 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-07-11   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.