Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD2JO callsign genealogy
Currently held by Hildreth, William
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 KD2JO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD2JO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD2JO, oldest first.
- Hildreth, William FL2004-06-14 → cancelled 2016-09-08
- Shoup, Joseph A NY2022-02-23 active