Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Headrick, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-738 A HDRCOKMARL0  9533 SOUTHWESTERN BELL 536      
580-738 0 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-19   
580-738 1 HDRCOKMARL0  9533 SOUTHWESTERN BELL 536      
580-738 2 OKCYOKCEXBZ  073H TELNYX LLC 536   2019-09-28   
580-738 3 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-14   
580-738 4 OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2019-06-28   
580-738 5   145J TERRA NOVA TELECOM INC. 536   2020-05-13   
580-738 6 OKCYOKCEXXY  516C AT&T CORP. 536   2022-12-12   
580-738 7 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
580-738 8 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
580-738 9 OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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