Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD8TD callsign genealogy
Currently held by DUNHAM, TIM 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 AD8TD's current licensee, walking backwards.
- DUNHAM, TIM RMIgranted 2022-09-07
Successor callsigns
Callsigns held now by people who previously held AD8TD.
- DUNHAM, TIM RMIgranted 2022-09-07
- DUNHAM, TIM RMIgranted 2019-08-10cancelled 2021-10-16
- DUNHAM, TIM RMIgranted 2017-12-27cancelled 2018-04-03
- DUNHAM, TIM RMIgranted 2016-12-13cancelled 2017-02-25
- DUNHAM, TIM RMIgranted 2015-06-30cancelled 2015-10-20
All historical holders
Every license row we've seen with the callsign AD8TD, oldest first.
- DUNHAM, TIM R MI2015-03-07 → cancelled 2015-06-30
- DUNHAM, TIM R MI2015-10-20 → cancelled 2016-12-13
- DUNHAM, TIM R MI2017-02-25 → cancelled 2017-12-27
- DUNHAM, TIM R MI2018-04-03 → cancelled 2019-08-10
- DUNHAM, TIM R MI2021-10-16 → cancelled 2022-09-07