Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JMD callsign genealogy
Currently held by DAVIS, JAMES 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 K9JMD's current licensee, walking backwards.
- DAVIS, JAMES MINgranted 2015-03-30cancelled 2015-05-19
Successor callsigns
Callsigns held now by people who previously held K9JMD.
- DZIEDZIEJKO, JOHN MSCgranted 2020-09-22cancelled 2025-01-17
All historical holders
Every license row we've seen with the callsign K9JMD, oldest first.
- DZIEDZIEJKO, JOHN M IN2000-03-24 → cancelled 2000-12-09
- DAVIS, JAMES M IN2025-04-18 active