Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF9TU callsign genealogy
Currently held by SCHMUDE, GREGORY L
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 KF9TU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KF9TU.
No current licensee on record previously held this callsign.