Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FLF callsign genealogy
Currently held by Allison, Donald 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 K4FLF's current licensee, walking backwards.
- Allison, Donald MGAgranted 2025-05-14cancelled 2025-07-08
Successor callsigns
Callsigns held now by people who previously held K4FLF.
No current licensee on record previously held this callsign.