Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8MMW callsign genealogy
Currently held by BORGELT, LARRY R
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 W8MMW's current licensee, walking backwards.
- Willemstein, Madison MMIgranted 2021-04-05cancelled 2022-06-07
Successor callsigns
Callsigns held now by people who previously held W8MMW.
- BORGELT, LARRY RMIgranted 2007-08-24cancelled 2019-10-08
All historical holders
Every license row we've seen with the callsign W8MMW, oldest first.
- Willemstein, Madison M MI2022-06-07 active
- BORGELT, LARRY R— → cancelled 1997-10-07