Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7JJ callsign genealogy
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 KJ7JJ's current licensee, walking backwards.
- JEWKES, JOHN JUTgranted 2019-01-30cancelled 2020-09-15
Successor callsigns
Callsigns held now by people who previously held KJ7JJ.
- LUNA, MARTIN AWYgranted 2018-07-31
All historical holders
Every license row we've seen with the callsign KJ7JJ, oldest first.
- JEWKES, JOHN J UT2020-09-15 active
- —— → cancelled 1998-08-19