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: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
539-305 A Ketchum OK TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538      
539-305 3 Ketchum OK   409F ONVOY, LLC - OK 538   2021-03-04   
539-305 4 Ketchum OK   073H TELNYX LLC 538   2018-10-31   
539-305 5 Ketchum OK   409F ONVOY, LLC - OK 538   2021-03-04   
539-305 7 Ketchum OK   508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-06-08   
539-305 8 Ketchum OK   530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 538   2021-11-22   

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

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