Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9LL callsign genealogy
Currently held by Bartels Jr, Louis F
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 K9LL's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K9LL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9LL, oldest first.
- KRUGMAN, NEAL G IL2005-12-12 → cancelled 2018-03-08
- Bartels Jr, Louis F IL2018-03-27 active