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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-600 A Maud OK OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536      
572-600 1 Maud OK   119F BANDWIDTH.COM CLEC, LLC - OK 536   2022-08-18   
572-600 2 Maud OK   409F ONVOY, LLC - OK 536   2021-07-24   
572-600 3 Maud OK   409F ONVOY, LLC - OK 536   2021-09-03   
572-600 8 Maud OK   624H ONVOY SPECTRUM, LLC 536   2025-01-22   
572-600 9 Maud OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2022-04-04   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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