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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-400 A Lawton OK OKCYOKCEXLZ  965H FRACTEL, LLC 536      
580-400 0 Lawton OK OKCYOKCEXLZ  965H FRACTEL, LLC 536   2021-12-24   
580-400 1 Lawton OK   612K CSC VOICE, LLC 536   2022-10-19   
580-400 2 Lawton OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2023-08-25   
580-400 3 Lawton OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2022-12-11   
580-400 4 Lawton OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2022-12-11   
580-400 5 Lawton OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-05-20   
580-400 6 Lawton OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
580-400 7 Lawton OK OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2024-02-05   
580-400 8 Lawton OK OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536   2024-02-14   
580-400 9 Lawton OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-08-12   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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