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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-640 A Tishomingo OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2025-08-23   
580-640 9 Tishomingo OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2025-08-23   

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

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