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: 537

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-537 A Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   
971-537 0 Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   
971-537 1 Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   
971-537 2 Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   
971-537 3 Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   
971-537 4 Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   
971-537 5 Beaverton OR   750E ONVOY, LLC - OR 672   2026-08-21   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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