Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6DFM callsign genealogy
Currently held by Miller, Michael A
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 K6DFM's current licensee, walking backwards.
- May, David FCAgranted 2016-06-07cancelled 2023-12-08
Successor callsigns
Callsigns held now by people who previously held K6DFM.
- Miller, Michael ACAgranted 2021-05-08
All historical holders
Every license row we've seen with the callsign K6DFM, oldest first.
- WEST, DANIEL K CA1991-07-30 → cancelled 2003-07-31
- Miller, Michael A CA2020-05-16 → cancelled 2021-05-08
- May, David F CA2023-12-08 active