Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3MM callsign genealogy
Currently held by HOGAN, WILLIAM T
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 AB3MM's current licensee, walking backwards.
- MARZELLI, MICHAEL JILgranted 2018-09-07cancelled 2018-10-13
Successor callsigns
Callsigns held now by people who previously held AB3MM.
- HOGAN, WILLIAM TGAgranted 2020-06-19
All historical holders
Every license row we've seen with the callsign AB3MM, oldest first.
- HOGAN, WILLIAM T GA2010-07-02 → cancelled 2013-08-31
- MARZELLI, MICHAEL J IL2018-10-13 active