Local Calling Guide

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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   6529 T-MOBILE USA, INC. 672   2007-06-15   
971-340 1 Portland OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2008-04-07   
971-340 2 Portland OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2008-05-15   
971-340 3 Portland OR   6529 T-MOBILE USA, INC. 672   2007-05-11   
971-340 4 Portland OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2008-05-15   
971-340 5 Portland OR   6529 T-MOBILE USA, INC. 672   2007-04-20   
971-340 6 Portland OR   6529 T-MOBILE USA, INC. 672   2007-04-16   
971-340 7 Portland OR   6529 T-MOBILE USA, INC. 672   2007-04-16   
971-340 8 Portland OR   6529 T-MOBILE USA, INC. 672   2007-04-13   
971-340 9 Portland OR   6529 T-MOBILE USA, INC. 672   2007-04-13   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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