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: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-230 A Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 0 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 1 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 2 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 3 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 4 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2004-01-06   
971-230 5 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 6 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 7 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      
971-230 8 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2004-01-06   
971-230 9 Portland OR PTLDORWAXDY  2998 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - OR 672      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.