Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9CAK callsign genealogy
Currently held by KASTEN, JOHN R
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 KB9CAK's current licensee, walking backwards.
- KEITH, KURT CILgranted 2013-10-21cancelled 2019-07-13
Successor callsigns
Callsigns held now by people who previously held KB9CAK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9CAK, oldest first.
- KASTEN, JOHN R IN1999-04-26 → cancelled 2011-04-27
- KEITH, KURT C IL2019-07-13 active