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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Avant, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-279 A TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538      
539-279 0 TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2022-03-07   
539-279 1 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-02-25   
539-279 2 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-03-16   
539-279 3 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-03-16   
539-279 4 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-03-16   
539-279 5 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-03-16   
539-279 6 TULSOKTBXXZ  624H ONVOY SPECTRUM, LLC 538   2025-01-23   
539-279 7 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-02-25   
539-279 8 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-02-25   
539-279 9 TULSOKTBX8Z  939H COMMIO, LLC 538   2024-02-25   
539-585 A TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538      
539-585 0 TULSOKTBX8Z  939H COMMIO, LLC 538   2021-07-08   
539-585 1 TULSOKTBX8Z  939H COMMIO, LLC 538   2021-07-08   
539-585 2 TULSOKTBX8Z  939H COMMIO, LLC 538   2021-07-08   
539-585 3 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-10-29   
539-585 4 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-03-04   
539-585 5 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-03-04   
539-585 6 TULSOKTBX8Z  939H COMMIO, LLC 538   2021-07-08   
539-585 7 TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-06-09   
539-585 9 TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2020-03-14   
918-263 A AVNTOKXCRS0  1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 538      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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