Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4UMA callsign genealogy
Currently held by HOOD, ROBERT C
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 K4UMA's current licensee, walking backwards.
- Karas, AdamGAgranted 2019-11-20cancelled 2019-12-17
Successor callsigns
Callsigns held now by people who previously held K4UMA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4UMA, oldest first.
- HOOD, ROBERT C MO1988-10-25 → cancelled 2000-10-26
- Karas, Adam GA2019-12-17 active