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: 316

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-316 A Grand Island OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672      
971-316 0 Grand Island OR   157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2016-03-06   
971-316 1 Grand Island OR   750E ONVOY, LLC - OR 672   2021-03-05   
971-316 3 Grand Island OR   5562 METROPCS, INC. 672   2020-05-21   
971-316 4 Grand Island OR   750E ONVOY, LLC - OR 672   2019-10-19   
971-316 5 Grand Island OR   750E ONVOY, LLC - OR 672   2019-10-19   
971-316 6 Grand Island OR   5562 METROPCS, INC. 672   2019-02-26   
971-316 7 Grand Island OR   508J CENTURYLINK COMMUNICATIONS, LLC 672   2014-03-13   
971-316 8 Grand Island OR   750E ONVOY, LLC - OR 672   2021-03-05   
971-316 9 Grand Island OR   5562 METROPCS, INC. 672   2015-10-08   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.