Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI6ACA callsign genealogy
Currently held by Mc Donald, Duncan
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 KI6ACA's current licensee, walking backwards.
- Mc Donald, DuncanWAgranted 2026-01-06cancelled 2026-01-24
Successor callsigns
Callsigns held now by people who previously held KI6ACA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI6ACA, oldest first.
- Mc Donald, Duncan CA2005-07-18 → cancelled 2017-07-19
- Mc Donald, Duncan WA2026-01-24 active