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.

NPA: 539 [Rate centres in NPA 539] [Dial plan for NPA 539]

NXX: 866

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
539-866 A Oilton OK TULSOKTBXCZ  145J TERRA NOVA TELECOM INC. 538      
539-866 0 Oilton OK TULSOKTBXRZ  073H TELNYX LLC 538   2020-06-18   
539-866 1 Oilton OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-04-26   
539-866 2 Oilton OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-07-13   
539-866 3 Oilton OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-07-13   
539-866 4 Oilton OK TULSOKTBXZZ  809H CROSS CABLE TELEVISION, LLC - OK 538   2021-12-31   
539-866 6 Oilton OK   145J TERRA NOVA TELECOM INC. 538   2023-08-10   
539-866 7 Oilton OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-05-28   
539-866 9 Oilton OK TULSOKTBDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 538   2020-05-19   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.