Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DI callsign genealogy
Currently held by ROBILLON, ERNEST 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 K1DI's current licensee, walking backwards.
- Hooper, Kenneth DTNgranted 2008-06-19cancelled 2008-07-08
Successor callsigns
Callsigns held now by people who previously held K1DI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1DI, oldest first.
- ROBILLON, ERNEST A MA1997-03-27 → cancelled 2006-06-14
- Hooper, Kenneth D CA2018-07-18 active