Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7VIN callsign genealogy
Currently held by KLEMMER, VINCENT J
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 K7VIN's current licensee, walking backwards.
- Klemmer, Vincent JAZgranted 2005-06-20cancelled 2006-02-04
Successor callsigns
Callsigns held now by people who previously held K7VIN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7VIN, oldest first.
- GAUDIO, JOHN J AZ1990-12-04 → cancelled 2002-12-05
- KLEMMER, VINCENT J AZ2026-03-14 active