Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Haskell, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-221 A HSKLOKXAPS0  1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 538      
539-221 0   073H TELNYX LLC 538   2020-06-18   
539-221 1   073H TELNYX LLC 538   2023-08-05   
539-221 2   409F ONVOY, LLC - OK 538   2020-10-29   
539-221 4   409F ONVOY, LLC - OK 538   2021-01-21   
539-221 5   409F ONVOY, LLC - OK 538   2021-01-21   
539-221 6   409F ONVOY, LLC - OK 538   2021-01-21   
539-221 7   409F ONVOY, LLC - OK 538   2021-01-21   
539-221 8   624H ONVOY SPECTRUM, LLC 538   2025-01-23   
539-221 9   1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 538   2018-01-27   
918-482 A HSKLOKXARP0  1165 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 538      
918-736 A BXBYOKXBDS1  669B BTC BROADBAND, INC. 538      
918-736 0   669B BTC BROADBAND, INC. 538   2009-06-20   
918-736 5   409F ONVOY, LLC - OK 538   2021-02-21   
918-736 6   409F ONVOY, LLC - OK 538   2021-02-21   
918-736 7   508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-04-07   
918-736 9   119F BANDWIDTH.COM CLEC, LLC - OK 538   2020-03-02   

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

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