Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY1R callsign genealogy
Currently held by MAC DONALD, LOUIS 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 KY1R's current licensee, walking backwards.
- Chansirikamon, BanchaFLgranted 2011-06-20cancelled 2011-07-15
Successor callsigns
Callsigns held now by people who previously held KY1R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KY1R, oldest first.
- MAC DONALD, LOUIS C ME1998-11-20 → cancelled 2010-11-23
- Chansirikamon, Bancha FL2021-06-22 active