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: TULSOKTBXHY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-981 4 Pryor OK 409F ONVOY, LLC - OK 538   2016-03-26   
918-981 7 Pryor OK 409F ONVOY, LLC - OK 538   2016-09-29   
918-981 9 Pryor OK 409F ONVOY, LLC - OK 538   2016-09-29   
918-984 2 Tulsa OK 409F ONVOY, LLC - OK 538   2015-07-31   
918-992 9 Tulsa OK 409F ONVOY, LLC - OK 538   2015-07-31   
918-995 4 Jenks OK 409F ONVOY, LLC - OK 538   2020-11-14   
918-995 6 Jenks OK 409F ONVOY, LLC - OK 538   2020-11-14   
918-999 A Tulsa OK 409F ONVOY, LLC - OK 538      
918-999 9 Tulsa OK 409F ONVOY, LLC - OK 538   2012-06-01   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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