Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM1N callsign genealogy
Currently held by BROWN, ROBERT G
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 WM1N's current licensee, walking backwards.
- COSTA, ALANMAgranted 2011-09-21cancelled 2019-11-22
Successor callsigns
Callsigns held now by people who previously held WM1N.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WM1N, oldest first.
- BROWN, ROBERT G MA2010-07-27 → cancelled 2017-11-01
- COSTA, ALAN MA2019-11-22 active