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: 227

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-227 A Mulhall OK OKCYOKCE07Z  490J BOOST SUBSCRIBERCO L.L.C. 536   2024-02-17   
572-227 0 Mulhall OK OKCYOKCE07Z  490J BOOST SUBSCRIBERCO L.L.C. 536   2024-02-17   
572-227 1 Mulhall OK   515J IP HORIZON LLC 536   2026-04-03   
572-227 9 Mulhall OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2024-12-26   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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