Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ASK callsign genealogy
Currently held by Roebuck, Steven T
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K4ASK's current licensee, walking backwards.
- Roebuck, Steven TFLgranted 2015-12-18cancelled 2016-01-08
Successor callsigns
Callsigns held now by people who previously held K4ASK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ASK, oldest first.
- DISMUKE, OLIVER TN1993-10-26 → cancelled 2005-10-27
- Roebuck, Steven T FL2026-05-05 active