Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4TT callsign genealogy
Currently held by FOX, HENRY 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 KF4TT's current licensee, walking backwards.
- Fox, Henry SCOgranted 2017-12-19cancelled 2018-01-09
Successor callsigns
Callsigns held now by people who previously held KF4TT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4TT, oldest first.
- FOX, HENRY S CA2000-02-11 → cancelled 2012-02-07
- Fox, Henry S CO2018-01-09 active