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: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-281 A Crescent OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2026-07-10   
572-281 4 Crescent OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2026-07-10   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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