Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1H callsign genealogy
Currently held by Mark, Steve A
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 KC1H's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KC1H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC1H, oldest first.
- SASSANO, FELIX G CT1995-01-26 → cancelled 2007-01-27
- Mark, Steve A MA2017-06-08 active