Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9SFC callsign genealogy
Currently held by WALLACE, GILBERT T
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 K9SFC's current licensee, walking backwards.
- Fritz, Michael ENVgranted 2007-10-19cancelled 2010-08-13
Successor callsigns
Callsigns held now by people who previously held K9SFC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9SFC, oldest first.
- WALLACE, GILBERT T FL1995-06-14 → cancelled 2007-06-15
- Fritz, Michael E SD2021-06-29 active