Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ8K callsign genealogy
Currently held by Wolf, Robert 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 KJ8K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KJ8K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ8K, oldest first.
- Grider, Sam L OH2008-08-07 → cancelled 2020-10-27
- Wolf, Robert C CO2020-11-17 active