Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4JJK callsign genealogy
Currently held by Anderson, Kenneth B
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 KK4JJK's current licensee, walking backwards.
- KLAYBOR, JONNYgranted 2025-05-07cancelled 2025-07-15
Successor callsigns
Callsigns held now by people who previously held KK4JJK.
- KLAYBOR, JONNYgranted 2025-12-30
All historical holders
Every license row we've seen with the callsign KK4JJK, oldest first.
- Anderson, Kenneth B AL2012-05-17 → cancelled 2024-05-18
- KLAYBOR, JON NY2025-07-15 → cancelled 2025-12-30