Local Calling Guide

Area code/prefix search

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NPA: 572 [Rate centres in NPA 572] [Dial plan for NPA 572]

NXX: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-224 A Norman OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
572-224 1 Norman OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-10-29   
572-224 4 Norman OK   145J TERRA NOVA TELECOM INC. 536   2025-10-04   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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