Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DMM callsign genealogy
Currently held by MURPHY, DANIEL M
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 W1DMM's current licensee, walking backwards.
- Marchand, Matthew JMAgranted 2025-11-21cancelled 2026-01-06
Successor callsigns
Callsigns held now by people who previously held W1DMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1DMM, oldest first.
- MURPHY, DANIEL M CT2011-07-26 → cancelled 2023-08-08
- Marchand, Matthew J MA2026-01-06 active