Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7MS callsign genealogy
Currently held by Stump, J Michael
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 AC7MS's current licensee, walking backwards.
- Stump, J MichaelORgranted 2017-03-17cancelled 2017-10-03
Successor callsigns
Callsigns held now by people who previously held AC7MS.
- FIMREITE, PAULUSAZgranted 2025-12-31
All historical holders
Every license row we've seen with the callsign AC7MS, oldest first.
- FIMREITE, PAUL CO1999-07-27 → cancelled 2006-01-21
- Stump, J Michael OR2017-10-03 active