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: 340

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-340 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
971-340 0 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-06-15   
971-340 1 Portland OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2008-04-07   
971-340 2 Portland OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2008-05-15   
971-340 3 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-05-11   
971-340 4 Portland OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2008-05-15   
971-340 5 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-04-20   
971-340 6 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-04-16   
971-340 7 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-04-16   
971-340 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-04-13   
971-340 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-04-13   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.