Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7MJS callsign genealogy
Currently held by Whidbey Island Trailblazers
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 KJ7MJS's current licensee, walking backwards.
- SHAMPTON, MICHAEL JUTgranted 2024-01-30cancelled 2024-02-17
Successor callsigns
Callsigns held now by people who previously held KJ7MJS.
- W7WITactiveWhidbey Island TrailblazersWAgranted 2020-02-28
All historical holders
Every license row we've seen with the callsign KJ7MJS, oldest first.
- Whidbey Island Trailblazers WA2020-02-10 → cancelled 2020-02-28
- SHAMPTON, MICHAEL J UT2024-02-17 active