Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JKB callsign genealogy
Currently held by BRODERSON, JUDITH D
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 K9JKB's current licensee, walking backwards.
- Davida, JacobWIgranted 2021-03-24cancelled 2023-12-09
Successor callsigns
Callsigns held now by people who previously held K9JKB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9JKB, oldest first.
- BRODERSON, JUDITH D WA2007-11-14 → cancelled 2020-01-08
- Davida, Jacob WI2023-12-09 active