Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 572 [Rate centres in NPA 572] [Dial plan for NPA 572]

NXX: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-283 A Britton OK   409F ONVOY, LLC - OK 536   2026-11-08   
572-283 0 Britton OK   409F ONVOY, LLC - OK 536   2026-11-08   
572-283 1 Britton OK   409F ONVOY, LLC - OK 536   2026-11-08   
572-283 2 Britton OK   409F ONVOY, LLC - OK 536   2026-11-08   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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