Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4KLF callsign genealogy
Currently held by FROST JR, KENNETH L
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 W4KLF's current licensee, walking backwards.
- FROST JR, KENNETH LKYgranted 2015-01-09cancelled 2017-03-07
Successor callsigns
Callsigns held now by people who previously held W4KLF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4KLF, oldest first.
- ACKERMAN, CHARLES T FL1994-05-24 → cancelled 2006-05-25
- FROST JR, KENNETH L KY2017-03-07 active