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 OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2025-08-23   
580-640 0 Tishomingo OK   145J TERRA NOVA TELECOM INC. 536   2025-08-30   
580-640 1 Tishomingo OK OKCYOKCEXWZ  515J IP HORIZON LLC 536   2026-04-12   
580-640 4 Tishomingo OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2026-05-16   
580-640 5 Tishomingo OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2026-07-02   
580-640 8 Tishomingo OK OKCYOKSX4MD  6529 T-MOBILE USA, INC. 536   2026-07-02   
580-640 9 Tishomingo OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2025-08-23   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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