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: 201

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-201 A Granite OK OKCYOKCEXOY  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536      
580-201 0 Granite OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
580-201 6 Granite OK OKCYOKCEXOY  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536   2022-12-20   

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

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