Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9DI callsign genealogy
Currently held by HUFFMAN, ROBERT 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 KD9DI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD9DI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD9DI, oldest first.
- HUFFMAN, ROBERT A IL1990-07-17 → cancelled 2002-07-18
- HUDSON, DIANE E IL2017-11-21 active