Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5DN callsign genealogy
Currently held by Thorn Jr, Robert P
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 AD5DN's current licensee, walking backwards.
- Thorn Jr, Robert PTXgranted 1994-10-19cancelled 2001-03-27
Successor callsigns
Callsigns held now by people who previously held AD5DN.
No current licensee on record previously held this callsign.