Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0S callsign genealogy
Currently held by ZAHRADNICEK, JAMES D
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 KD0S's current licensee, walking backwards.
- ZAHRADNICEK, JAMES DSDgranted 1998-10-15cancelled 2000-03-17
Successor callsigns
Callsigns held now by people who previously held KD0S.
No current licensee on record previously held this callsign.