Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9BDI callsign genealogy
Currently held by MARTY, RODNEY H
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 KA9BDI's current licensee, walking backwards.
- Marty Johnson, Thomas DWIgranted 2018-02-09cancelled 2018-05-08
Successor callsigns
Callsigns held now by people who previously held KA9BDI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA9BDI, oldest first.
- MARTY, RODNEY H WI2008-05-03 → cancelled 2016-05-17
- Marty Johnson, Thomas D WI2018-05-08 active