Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4CMM callsign genealogy
Currently held by Wily, Robert 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 KD4CMM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD4CMM.
- Wily, Robert MUTgranted 2025-02-28
All historical holders
Every license row we've seen with the callsign KD4CMM, oldest first.
- WILY, ROBERT M VA1991-07-02 → cancelled 2003-07-03
- Wily, Robert M UT2014-11-25 → cancelled 2015-03-10