Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OOH callsign genealogy
Currently held by Hookassian, Zareh
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 K4OOH's current licensee, walking backwards.
- Hookassian, ZarehTNgranted 2016-07-30cancelled 2018-05-15
Successor callsigns
Callsigns held now by people who previously held K4OOH.
- Mc Roberts, Jason BKYgranted 2004-11-23cancelled 2007-03-30
All historical holders
Every license row we've seen with the callsign K4OOH, oldest first.
- Mc Roberts, Jason B KY2001-09-11 → cancelled 2004-11-23
- Hookassian, Zareh TN2018-05-15 active