Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2MMX callsign genealogy
Currently held by Adler, Rudolf A
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 K2MMX's current licensee, walking backwards.
- Adler, Rudolf AALgranted 2024-03-26cancelled 2024-08-03
Successor callsigns
Callsigns held now by people who previously held K2MMX.
- SAAKE, HARRY ANCgranted 2020-12-18
All historical holders
Every license row we've seen with the callsign K2MMX, oldest first.
- SAAKE, HARRY A NC2011-04-15 → cancelled 2020-12-18
- Adler, Rudolf A AL2024-08-03 active