Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC5UZI callsign genealogy
Currently held by PENNING, JULIE A
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 KC5UZI's current licensee, walking backwards.
- THOMPSON JR, MICHAEL MTXgranted 2015-08-17cancelled 2015-09-15
Successor callsigns
Callsigns held now by people who previously held KC5UZI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC5UZI, oldest first.
- PENNING, JULIE A TX1996-06-14 → cancelled 2008-06-17
- THOMPSON JR, MICHIAL M TX2025-06-27 active