Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0AQ callsign genealogy
Currently held by Clark, John R
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 AD0AQ's current licensee, walking backwards.
- Clark, John RCOgranted 2008-09-08cancelled 2012-06-08
Successor callsigns
Callsigns held now by people who previously held AD0AQ.
No current licensee on record previously held this callsign.