Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 720

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-720 A Elgin OK OKCYOKCEXOY  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536      
580-720 0 Elgin OK   145J TERRA NOVA TELECOM INC. 536   2025-07-10   
580-720 6 Elgin OK OKCYOKCEXOY  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536   2020-12-28   
580-720 7 Elgin OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-11-25   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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