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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-557 A Tonkawa OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536      
580-557 0 Tonkawa OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536   2021-10-28   
580-557 1 Tonkawa OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536   2022-02-20   
580-557 7 Tonkawa OK OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536   2024-02-14   
580-557 8 Tonkawa OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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