Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0AD callsign genealogy
Currently held by Olsen Jr, Ronald J
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 AD0AD's current licensee, walking backwards.
- Olsen Jr, Ronald JMNgranted 2011-10-25cancelled 2012-05-01
Successor callsigns
Callsigns held now by people who previously held AD0AD.
No current licensee on record previously held this callsign.