Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD3P callsign genealogy
Currently held by Comer, Joseph P
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 AD3P's current licensee, walking backwards.
- Comer, Joseph PMDgranted 2016-11-22cancelled 2019-04-30
Successor callsigns
Callsigns held now by people who previously held AD3P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD3P, oldest first.
- Crain, Robert W AZ2007-01-29 → cancelled 2019-04-11
- Comer, Joseph P MD2019-04-30 active