Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL0JB callsign genealogy
Currently held by Boggel-Trahe, Jorg
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 KL0JB's current licensee, walking backwards.
- Boggel-Trahe, JörgINgranted 2008-03-25cancelled 2015-10-14
Successor callsigns
Callsigns held now by people who previously held KL0JB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL0JB, oldest first.
- SIMMONDS JR, GILBERT T AK1997-06-24 → cancelled 2009-06-25
- Boggel-Trahe, Jorg AK2026-05-08 active