Confidence: Medium · Source: FCC ULS · As of 2026-10-24
K4DOS callsign genealogy
Currently held by US DEPT OF STATE RADIO CLUB
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 K4DOS's current licensee, walking backwards.
- TRUITT, KEVIN RCOgranted 2020-09-03cancelled 2026-09-11
Successor callsigns
Callsigns held now by people who previously held K4DOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DOS, oldest first.
- US DEPT OF STATE RADIO CLUB FL2012-01-28 → cancelled 2024-01-30
- TRUITT, KEVIN R CO2026-09-11 active