Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   073H TELNYX LLC 538   2020-06-18   
539-866 1 Oilton OK   409F ONVOY, LLC - OK 538   2021-04-26   
539-866 2 Oilton OK   409F ONVOY, LLC - OK 538   2020-07-13   
539-866 3 Oilton OK   409F ONVOY, LLC - OK 538   2020-07-13   
539-866 4 Oilton OK   809H CROSS CABLE TELEVISION, LLC - OK 538   2021-12-31   
539-866 7 Oilton OK   409F ONVOY, LLC - OK 538   2021-05-28   
539-866 9 Oilton OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 538   2020-05-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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