Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO1ATT callsign genealogy
Currently held by Mondelli, Luigi E
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 KO1ATT's current licensee, walking backwards.
- Mondelli, Luigi ECTgranted 2023-11-28cancelled 2023-12-16
Successor callsigns
Callsigns held now by people who previously held KO1ATT.
No current licensee on record previously held this callsign.