Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6KRT callsign genealogy
Currently held by Mumford, Kurtis C
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 K6KRT's current licensee, walking backwards.
- Steinkraus, Kurt ACAgranted 2026-03-17cancelled 2026-08-25
Successor callsigns
Callsigns held now by people who previously held K6KRT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6KRT, oldest first.
- Mumford, Kurtis C CA2009-05-19 → cancelled 2021-05-20
- Steinkraus, Kurt A CA2026-08-25 active