Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1MM callsign genealogy
Currently held by PIONEER CHAPTER 183 QCWA
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 W1MM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1MM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1MM, oldest first.
- PIONEER CHAPTER 183 QCWA MA2007-08-23 → cancelled 2015-11-02
- Brasche, Mark D CT2017-11-21 active