Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4AST callsign genealogy
Currently held by SIMPSON, GREGORY S
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 KC4AST's current licensee, walking backwards.
- SIMPSON, GREGORY SALgranted 2015-12-16cancelled 2017-07-25
Successor callsigns
Callsigns held now by people who previously held KC4AST.
No current licensee on record previously held this callsign.