Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6RT callsign genealogy
Currently held by French, Michael D
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 K6RT's current licensee, walking backwards.
- French, Michael DCAgranted 1998-07-20cancelled 2001-07-27
Successor callsigns
Callsigns held now by people who previously held K6RT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6RT, oldest first.
- RAINBOW RIDGE RADIO ASSOCIATION CA1998-03-10 → cancelled 1999-07-07
- French, Michael D CA2021-05-01 active