Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0E callsign genealogy
Currently held by GIESMAN, RALPH 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 KD0E's current licensee, walking backwards.
- HEDSTROM, DEAN KMNgranted 2020-02-25cancelled 2026-06-09
Successor callsigns
Callsigns held now by people who previously held KD0E.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD0E, oldest first.
- GIESMAN, RALPH E IA2015-04-30 → cancelled 2026-05-21
- HEDSTROM, DEAN K MN2026-06-09 active