Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1JAK callsign genealogy
Currently held by Otten, Ronald
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 KD1JAK's current licensee, walking backwards.
- Otten, RonaldCAgranted 2019-07-25cancelled 2019-08-17
Successor callsigns
Callsigns held now by people who previously held KD1JAK.
No current licensee on record previously held this callsign.