Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA3MMM callsign genealogy
Currently held by SCHMIDT, STEPHEN W
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 WA3MMM's current licensee, walking backwards.
- Mackey, Michael MPAgranted 2017-05-01cancelled 2017-07-15
Successor callsigns
Callsigns held now by people who previously held WA3MMM.
- Mackey, Michael MPAgranted 2019-02-20
All historical holders
Every license row we've seen with the callsign WA3MMM, oldest first.
- SCHMIDT, STEPHEN W PA1994-08-16 → cancelled 2006-08-17
- Mackey, Michael M PA2017-07-15 → cancelled 2019-02-20