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.

Switch: OKCYOKCEXCZ

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
580-391 2 Caddo OK 939H COMMIO, LLC 536   2021-09-16   
580-391 5 Caddo OK 939H COMMIO, LLC 536   2024-03-16   
580-391 6 Caddo OK 939H COMMIO, LLC 536   2024-03-16   
580-391 7 Caddo OK 939H COMMIO, LLC 536   2024-02-25   
580-391 8 Caddo OK 939H COMMIO, LLC 536   2024-02-25   
580-565 8 Kingston OK 939H COMMIO, LLC 536   2024-02-24   
580-596 9 Cherokee OK 939H COMMIO, LLC 536   2022-12-11   
580-603 6 Enid OK 939H COMMIO, LLC 536   2022-08-11   
580-606 5 Duncan OK 939H COMMIO, LLC 536   2022-08-11   
580-615 0 Durant OK 939H COMMIO, LLC 536   2022-04-01   
580-624 1 Kingston OK 939H COMMIO, LLC 536   2024-02-24   
580-624 5 Kingston OK 939H COMMIO, LLC 536   2024-03-16   
580-624 8 Kingston OK 939H COMMIO, LLC 536   2024-02-24   
580-624 9 Kingston OK 939H COMMIO, LLC 536   2024-02-24   
580-722 9 Newkirk OK 939H COMMIO, LLC 536   2022-11-24   
580-798 9 Ardmore OK 939H COMMIO, LLC 536   2022-08-11   
580-806 0 Kingston OK 939H COMMIO, LLC 536   2024-03-16   
580-806 1 Kingston OK 939H COMMIO, LLC 536   2021-09-16   
580-806 3 Kingston OK 939H COMMIO, LLC 536   2021-09-16   
580-806 4 Kingston OK 939H COMMIO, LLC 536   2021-09-16   
580-806 7 Kingston OK 939H COMMIO, LLC 536   2021-09-16   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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