Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1TLA callsign genealogy
Currently held by Doble, Malcolm S
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 K1TLA's current licensee, walking backwards.
- Doble, Malcolm SMAgranted 2020-05-11cancelled 2020-06-02
Successor callsigns
Callsigns held now by people who previously held K1TLA.
- Laursen, Tyler RCAgranted 2026-04-18
All historical holders
Every license row we've seen with the callsign K1TLA, oldest first.
- Laursen, Tyler R CA2016-01-22 → cancelled 2016-05-17
- Doble, Malcolm S MA2020-06-02 active