Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6QMT callsign genealogy
Currently held by Johnston, Karl M
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 K6QMT's current licensee, walking backwards.
- Johnston, Karl MCAgranted 2001-08-29cancelled 2001-09-18
Successor callsigns
Callsigns held now by people who previously held K6QMT.
No current licensee on record previously held this callsign.