Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4AC callsign genealogy
Currently held by CLAUSEN, ANDREW C
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 KI4AC's current licensee, walking backwards.
- Clausen, Andrew CALgranted 2008-04-21cancelled 2009-08-04
Successor callsigns
Callsigns held now by people who previously held KI4AC.
No current licensee on record previously held this callsign.