Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9JMK callsign genealogy
Currently held by KINDERMANN, JOANNA
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 K9JMK's current licensee, walking backwards.
- KINDERMANN, JOANNANCgranted 2023-01-07cancelled 2024-01-06
Successor callsigns
Callsigns held now by people who previously held K9JMK.
- Kania, John MCTgranted 2018-05-12
All historical holders
Every license row we've seen with the callsign K9JMK, oldest first.
- Kania, John M CT2015-05-19 → cancelled 2018-05-12
- KINDERMANN, JOANNA NC2024-01-06 active