Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Carrier, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-329 A OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
580-329 0 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-19   
580-329 1 OKCYOKCEXBZ  073H TELNYX LLC 536   2019-09-28   
580-329 2 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2019-09-28   
580-329 3 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
580-329 4 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
580-329 5 OKCYOKCEXXY  516C AT&T CORP. 536   2011-08-25   
580-329 7 OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2019-06-28   
580-855 A CRRROKMARL0  9533 SOUTHWESTERN BELL 536      
580-855 1 CRRROKMARL0  9533 SOUTHWESTERN BELL 536      
580-855 2 CRRROKMARL0  9533 SOUTHWESTERN BELL 536      
580-855 4 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2018-04-30   
580-855 5 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-14   
580-855 7 OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536   2022-12-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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