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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Bessie, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-337 A BESSOKMARS1  9533 SOUTHWESTERN BELL 536      
580-337 0 OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2006-09-25   
580-337 1 BESSOKMARS1  9533 SOUTHWESTERN BELL 536      
580-337 3 OKCYOKCEXBZ  073H TELNYX LLC 536   2019-09-28   
580-337 4 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2018-04-21   
580-337 5 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2019-12-19   
580-337 6   145J TERRA NOVA TELECOM INC. 536   2021-09-26   
580-337 7 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-14   
580-337 8 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2019-01-19   
580-337 9 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2019-01-19   
580-373 A BESSOKMARS1  9533 SOUTHWESTERN BELL 536      
580-373 0 BESSOKMARS1  9533 SOUTHWESTERN BELL 536      
580-373 2 OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2021-07-04   
580-373 4 OKCYOKCEXVZ  506J TWILIO INTERNATIONAL, INC. 536   2021-07-16   
580-373 5 OKCYOKCEXXY  516C AT&T CORP. 536   2015-04-27   
580-373 6 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-12-28   
580-373 7 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-12-28   
580-373 8 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2015-01-09   
580-373 9 OKCYOKCE13Z  4196 CELLULAR NETWORK PARTNERSHIP 536   2010-09-05   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.