Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4TS callsign genealogy
Currently held by Catastrophic Amateur Tactical Squad
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 KC4TS's current licensee, walking backwards.
- KN4VWHcancelledCatastrophic Amateur Tactical SquadVAgranted 2019-07-23cancelled 2019-08-13
Successor callsigns
Callsigns held now by people who previously held KC4TS.
- RIGGS, MICHAEL SKYgranted 2023-09-02