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: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-531 A Gresham OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2026-05-10   
971-531 8 Gresham OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2026-05-10   
971-531 9 Gresham OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2026-05-10   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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