Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3I callsign genealogy
Currently held by King Jr, William D
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 AC3I's current licensee, walking backwards.
- King Jr, William DMOgranted 2026-02-28cancelled 2026-05-02
Successor callsigns
Callsigns held now by people who previously held AC3I.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC3I, oldest first.
- Keim Jr, William D PA2014-01-16 → cancelled 2026-04-14
- King Jr, William D MO2026-05-02 active