Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3MJW callsign genealogy
Currently held by Wallin, Mark J
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 W3MJW's current licensee, walking backwards.
- Webber, Michele JMNgranted 2016-08-24cancelled 2021-06-07
Successor callsigns
Callsigns held now by people who previously held W3MJW.
- Wallin, Mark JPAgranted 2026-08-13
All historical holders
Every license row we've seen with the callsign W3MJW, oldest first.
- Wallin, Mark J PA2015-11-10 → cancelled 2016-10-25
- Webber, Michele J MN2021-06-07 active