Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4IQ callsign genealogy
Currently held by McDonaldson, Aaron K
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 AA4IQ's current licensee, walking backwards.
- McDonaldson, Aaron KVAgranted 2019-04-16cancelled 2026-04-07
Successor callsigns
Callsigns held now by people who previously held AA4IQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4IQ, oldest first.
- Prast, William H FL2010-05-11 → cancelled 2022-05-12
- McDonaldson, Aaron K VA2026-04-07 active
- —— → cancelled 1997-08-05