Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0SA callsign genealogy
Currently held by COLTON, HENRY
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 KC0SA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KC0SA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0SA, oldest first.
- COLTON, HENRY IA1992-01-14 → cancelled 2004-01-15
- Allen, Walter S MO2023-10-24 active