Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4ITT callsign genealogy
Currently held by Kaiser, Stephen 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 KC4ITT's current licensee, walking backwards.
- Kaiser, Stephen CCOgranted 2016-10-25cancelled 2017-05-31
Successor callsigns
Callsigns held now by people who previously held KC4ITT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4ITT, oldest first.
- KAISER, STEPHEN C KY1989-01-31 → cancelled 2001-02-01
- Kaiser, Stephen C FL2017-05-31 active