Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1MRD callsign genealogy
Currently held by Desjardin, Mark R
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 W1MRD's current licensee, walking backwards.
- Desjardin, Mark RMEgranted 2024-08-01cancelled 2024-09-17
Successor callsigns
Callsigns held now by people who previously held W1MRD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1MRD, oldest first.
- Simons, Robert L NH2005-11-29 → cancelled 2015-08-31
- Desjardin, Mark R ME2024-09-17 active