Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5RN callsign genealogy
Currently held by Bosshard, John C
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 AD5RN's current licensee, walking backwards.
- Bosshard, John CTXgranted 1998-02-03cancelled 2004-06-17
Successor callsigns
Callsigns held now by people who previously held AD5RN.
No current licensee on record previously held this callsign.