Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD2TMH callsign genealogy
Currently held by Heyn, Todd 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 KD2TMH's current licensee, walking backwards.
- Heyn, Todd MNYgranted 2017-04-03cancelled 2017-04-22
Successor callsigns
Callsigns held now by people who previously held KD2TMH.
- Heyn, Todd MNYgranted 2021-08-10