Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MP callsign genealogy
Currently held by Teerasutthiborwon, Sitthiphong
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 K1MP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K1MP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1MP, oldest first.
- PENN, MORTON FL2006-10-11 → cancelled 2018-12-27
- Teerasutthiborwon, Sitthiphong CA2019-02-09 active