Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4FX callsign genealogy
Currently held by Mills, Phil D
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 KD4FX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD4FX.
- Mills, Phil DMOgranted 2026-01-16