Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE7CAT callsign genealogy
Currently held by Brumme, Michael 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 KE7CAT's current licensee, walking backwards.
- Brumme, Michael JAZgranted 2007-04-26cancelled 2007-05-30
Successor callsigns
Callsigns held now by people who previously held KE7CAT.
- W7SYCactiveSeattle Yacht ClubWAgranted 2025-06-10
All historical holders
Every license row we've seen with the callsign KE7CAT, oldest first.
- Seattle Yacht Club WA2004-10-27 → cancelled 2004-11-16
- Brumme, Michael J AZ2017-03-17 active