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.
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OCN: 409F ONVOY, LLC - OK

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
918-960 9 Tulsa OK   538   2009-01-21   
918-965 4 Claremore OK   538   2021-03-04   
918-965 5 Claremore OK   538   2021-03-04   
918-965 6 Claremore OK   538   2021-03-04   
918-969 3 Bokoshe OK   538   2021-02-20   
918-969 4 Bokoshe OK   538   2021-02-20   
918-969 5 Bokoshe OK   538   2021-02-20   
918-969 6 Bokoshe OK   538   2021-02-20   
918-972 0 Dewey OK   538   2016-09-29   
918-972 1 Dewey OK   538   2016-09-29   
918-973 5 Owasso OK   538   2016-09-29   
918-973 6 Owasso OK   538   2016-03-07   
918-973 7 Owasso OK   538   2016-03-07   
918-981 3 Pryor OK   538   2016-03-26   
918-981 4 Pryor OK   538   2016-03-26   
918-981 7 Pryor OK   538   2016-09-29   
918-981 9 Pryor OK   538   2016-09-29   
918-984 2 Tulsa OK   538   2015-07-31   
918-992 9 Tulsa OK   538   2015-07-31   
918-995 4 Jenks OK   538   2020-11-14   
918-995 6 Jenks OK   538   2020-11-14   
918-999 A Tulsa OK TULSOKTBXHY  538      
918-999 9 Tulsa OK   538   2012-06-01   

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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