Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4CK callsign genealogy
Currently held by Kilgore, Frank C
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 KK4CK's current licensee, walking backwards.
- Kilgore, Frank CFLgranted 2021-12-08cancelled 2022-01-05
Successor callsigns
Callsigns held now by people who previously held KK4CK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4CK, oldest first.
- SEAVER, JOHN J FL1996-07-31 → cancelled 2008-08-01
- Kilgore, Frank C FL2022-01-05 active