Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1UN callsign genealogy
Currently held by Fratto, Joseph 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 K1UN's current licensee, walking backwards.
- Fratto, Joseph TMAgranted 2023-11-28cancelled 2024-05-10
Successor callsigns
Callsigns held now by people who previously held K1UN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1UN, oldest first.
- RING, JORDAN L MA2012-02-03 → cancelled 2024-04-23
- Fratto, Joseph T MA2024-05-10 active