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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-999 6 Guthrie OK   409F ONVOY, LLC - OK 536   2021-05-28   
572-999 7 Guthrie OK   965H FRACTEL, LLC 536   2021-05-24   
572-999 8 Guthrie OK   965H FRACTEL, LLC 536   2021-05-24   
572-999 9 Guthrie OK   965H FRACTEL, LLC 536   2021-05-24   

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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