Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW8MM callsign genealogy
Currently held by Mettler, 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 WW8MM's current licensee, walking backwards.
- Moss, MartinUTgranted 2024-08-31cancelled 2025-08-05
Successor callsigns
Callsigns held now by people who previously held WW8MM.
- Mettler, Michael JOHgranted 2025-09-05
All historical holders
Every license row we've seen with the callsign WW8MM, oldest first.
- Mettler, Michael J OH1997-09-17 → cancelled 2005-09-09
- Ayres, Robert J VA2012-05-22 → cancelled 2024-05-23
- Moss, Martin UT2025-08-05 active