Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0ER callsign genealogy
Currently held by Maunder, Mark D
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 AD0ER's current licensee, walking backwards.
- Roberts, Danny LCOgranted 2015-05-27cancelled 2015-12-05
Successor callsigns
Callsigns held now by people who previously held AD0ER.
All historical holders
Every license row we've seen with the callsign AD0ER, oldest first.
- Maunder, Mark D CO2013-07-11 → cancelled 2013-07-30
- Roberts, Danny L IL2015-12-05 → cancelled 2020-04-07