Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5QM callsign genealogy
Currently held by MARSH II, OTIS B
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 KM5QM's current licensee, walking backwards.
- MARSH II, OTIS Bcancelled 1998-05-19
Successor callsigns
Callsigns held now by people who previously held KM5QM.
- MARSH II, OTIS BIDgranted 2018-10-01