Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9BT callsign genealogy
Currently held by Ellis, Colin 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 AD9BT's current licensee, walking backwards.
- Ellis, Colin RINgranted 2020-06-16cancelled 2023-02-13
Successor callsigns
Callsigns held now by people who previously held AD9BT.
No current licensee on record previously held this callsign.