Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF7UCK callsign genealogy
Currently held by MUSTANG RANCH ARC
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 KF7UCK's current licensee, walking backwards.
- Sharer, Benjamin JUTgranted 2014-04-08cancelled 2022-11-19
Successor callsigns
Callsigns held now by people who previously held KF7UCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF7UCK, oldest first.
- MUSTANG RANCH ARC CA1998-12-30 → cancelled 1999-07-16
- Sharer, Benjamin J UT2022-11-19 active