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: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-543 A Stafford-Sandy OR BVTNORXBX1Y  750E ONVOY, LLC - OR 672   2026-07-23   
971-543 0 Stafford-Sandy OR BVTNORXBX1Y  750E ONVOY, LLC - OR 672   2026-07-23   
971-543 1 Stafford-Sandy OR BVTNORXBX1Y  750E ONVOY, LLC - OR 672   2026-07-23   
971-543 2 Stafford-Sandy OR THDLORXABMD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2026-07-24   
971-543 3 Stafford-Sandy OR   750E ONVOY, LLC - OR 672   2026-08-30   
971-543 8 Stafford-Sandy OR   624H ONVOY SPECTRUM, LLC 672   2026-08-28   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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