Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4ACE callsign genealogy
Currently held by Cheng, Julien
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 KI4ACE's current licensee, walking backwards.
- Cheng, JulienCAgranted 2021-03-31cancelled 2022-11-22
Successor callsigns
Callsigns held now by people who previously held KI4ACE.
- NC4CAactiveNorth Carolina Four County ARESNCgranted 2023-05-26
All historical holders
Every license row we've seen with the callsign KI4ACE, oldest first.
- FOUR COUNTY ARES NC2003-05-05 → cancelled 2003-05-31
- Cheng, Julien CA2022-11-22 active