Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4OOT callsign genealogy
Currently held by DeMersseman, Daniel B
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 KD4OOT's current licensee, walking backwards.
- DeMersseman, Daniel BGAgranted 2022-04-04cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held KD4OOT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4OOT, oldest first.
- KAUER, DON C FL1992-05-19 → cancelled 2004-05-20
- DeMersseman, Daniel B GA2022-05-03 active