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.

Calvin, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
405-299 A OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
405-299 0 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-18   
405-299 1 OKCYOKCEXBZ  073H TELNYX LLC 536   2019-01-21   
405-299 2 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2018-04-30   
405-299 3 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-06-26   
405-299 4 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
405-299 5 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
405-299 6 OKCYOKCEXXY  516C AT&T CORP. 536   2024-10-07   
405-299 7 OKCZOKZC8MD  073H TELNYX LLC 536   2022-07-28   
405-299 8 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-08-23   
405-299 9 OKCYOKCEXLZ  965H FRACTEL, LLC 536   2020-08-08   
405-645 A CLVNOKMARS1  9533 SOUTHWESTERN BELL 536      
405-645 0 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-07-06   
405-645 1 CLVNOKMARS1  9533 SOUTHWESTERN BELL 536      
405-645 2 CLVNOKMARS1  9533 SOUTHWESTERN BELL 536      
405-645 3 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-10-03   
405-645 5 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-07-12   
405-645 6 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-07-12   
405-645 7 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2019-01-21   
405-645 8 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2018-11-08   
405-645 9 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2019-01-21   
572-552 A OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
572-552 0 OKCZOKZC8MD  073H TELNYX LLC 536   2023-05-14   
572-552 1 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-07-24   
572-552 5 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-03-16   
572-552 8 OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
572-552 9 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2023-07-27   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.