Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 971 [Rate centres in NPA 971] [Dial plan for NPA 971]

NXX: 381

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-381 A Clackamas OR PTLDOR13YMD  197D VONAGE AMERICA LLC 672      
971-381 0 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2021-01-18   
971-381 1 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2021-01-18   
971-381 2 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2021-01-18   
971-381 3 Clackamas OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2024-08-12   
971-381 4 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2021-01-18   
971-381 5 Clackamas OR PTLDOR13YMD  197D VONAGE AMERICA LLC 672   2020-11-07   
971-381 6 Clackamas OR PTLDOR13DS4  157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2020-11-08   
971-381 7 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2022-09-09   
971-381 8 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2020-11-08   
971-381 9 Clackamas OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2020-11-08   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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