Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0RU callsign genealogy
Currently held by KJELDERGAARD, ERIC 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 AD0RU's current licensee, walking backwards.
- KJELDERGAARD, ERIC DNDgranted 2015-11-02cancelled 2016-01-11
Successor callsigns
Callsigns held now by people who previously held AD0RU.
No current licensee on record previously held this callsign.