Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DPM callsign genealogy
Currently held by Mende, Darren 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 W9DPM's current licensee, walking backwards.
- Mann, Derek PINgranted 2021-03-01cancelled 2022-07-09
Successor callsigns
Callsigns held now by people who previously held W9DPM.
- Mende, Darren PILgranted 2007-08-18cancelled 2008-04-18
All historical holders
Every license row we've seen with the callsign W9DPM, oldest first.
- Mende, Darren P IL2006-12-19 → cancelled 2007-08-18
- Mann, Derek P IN2022-07-09 active