Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6AST callsign genealogy
Currently held by TOPINIO JR, WILFREDO B
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 KF6AST's current licensee, walking backwards.
- Slate, Channing SHIgranted 2024-03-05cancelled 2025-08-22
Successor callsigns
Callsigns held now by people who previously held KF6AST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF6AST, oldest first.
- TOPINIO JR, WILFREDO B CA2006-05-11 → cancelled 2018-01-13
- Slate, Channing S HI2025-08-22 active