Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9CBM callsign genealogy
Currently held by Wise, Thomas
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 K9CBM's current licensee, walking backwards.
- Wise, ThomasWIgranted 2026-01-10cancelled 2026-01-30
Successor callsigns
Callsigns held now by people who previously held K9CBM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9CBM, oldest first.
- KLIMAS, STANLEY J FL1998-08-18 → cancelled 1998-12-08
- Wise, Thomas WI2026-01-30 active