Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DVM callsign genealogy
Currently held by LA MARCHE, PHILIP J
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 W9DVM's current licensee, walking backwards.
- Marthaler, Douglas VMNgranted 2023-05-06cancelled 2026-03-17
Successor callsigns
Callsigns held now by people who previously held W9DVM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DVM, oldest first.
- LA MARCHE, PHILIP J FL2011-05-24 → cancelled 2023-08-15
- Marthaler, Douglas V MN2026-03-17 active