Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5KOY callsign genealogy
Currently held by Johnson, Aaron M
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 KD5KOY's current licensee, walking backwards.
- Johnson, Aaron MTXgranted 2026-03-12cancelled 2026-03-31
Successor callsigns
Callsigns held now by people who previously held KD5KOY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5KOY, oldest first.
- Johnson, Aaron M TX2010-05-06 → cancelled 2022-06-15
- Johnson, Aaron M TX2026-03-31 active