Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH2MM callsign genealogy
Currently held by Althoff, Jochen
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 KH2MM's current licensee, walking backwards.
- Althoff, JochenGUgranted 2011-09-01cancelled 2011-10-08
Successor callsigns
Callsigns held now by people who previously held KH2MM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH2MM, oldest first.
- COMIA, RHONDA I GU1995-01-31 → cancelled 2007-02-01
- Althoff, Jochen GU2021-07-20 active