Local Calling Guide

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

NXX: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-423 A Yamhill OR   506J TWILIO INTERNATIONAL, INC. 672      
971-423 0 Yamhill OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2022-03-25   
971-423 2 Yamhill OR BVTNORXBXMX  624H ONVOY SPECTRUM, LLC 672   2025-01-23   
971-423 3 Yamhill OR   506J TWILIO INTERNATIONAL, INC. 672   2025-12-03   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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