Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MOO callsign genealogy
Currently held by BRUCE, JONATHAN M
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 K1MOO's current licensee, walking backwards.
- BRUCE, JONATHAN MMAgranted 2014-10-28cancelled 2014-11-15
Successor callsigns
Callsigns held now by people who previously held K1MOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1MOO, oldest first.
- ST JOHN, ROBERT E FL1997-05-15 → cancelled 2009-05-16
- BRUCE, JONATHAN M MA2024-08-23 active