Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5MMM callsign genealogy
Currently held by LOST TRIBE DX & CONTEST CLUB
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 K5MMM's current licensee, walking backwards.
- KC7ZAPcancelledJONES, DALE Dcancelled 1997-11-19
Successor callsigns
Callsigns held now by people who previously held K5MMM.
No current licensee on record previously held this callsign.