Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0HR callsign genealogy
Currently held by Seidel, Durbin
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 KD0HR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD0HR.