Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0OB callsign genealogy
Currently held by Roop Jr, Gerald 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 AD0OB's current licensee, walking backwards.
- Roop Jr, Gerald CCOgranted 2005-11-16cancelled 2015-03-23
Successor callsigns
Callsigns held now by people who previously held AD0OB.
- Roop Jr, Gerald CCOgranted 2020-03-07