Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9DWP callsign genealogy
Currently held by DUMDIE, ADAM 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 W9DWP's current licensee, walking backwards.
- DUMDIE, ADAM PILgranted 2017-02-07cancelled 2018-11-20
Successor callsigns
Callsigns held now by people who previously held W9DWP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DWP, oldest first.
- DUMDIE JR, PAUL R IL2017-01-17 → cancelled 2018-09-12
- DUMDIE, ADAM P IL2018-11-20 active