Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0MAM callsign genealogy
Currently held by Bruhnke, Thomas E
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 KC0MAM's current licensee, walking backwards.
- Isringhaus, Michelle AMOgranted 2011-12-19cancelled 2012-01-07
Successor callsigns
Callsigns held now by people who previously held KC0MAM.
All historical holders
Every license row we've seen with the callsign KC0MAM, oldest first.
- Bruhnke, Thomas E MN2002-01-02 → cancelled 2002-03-28
- Isringhaus, Michelle A MO2012-01-07 → cancelled 2020-06-23