Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC2MB callsign genealogy
Currently held by Breslin, 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 AC2MB's current licensee, walking backwards.
- Breslin, MichaelNJgranted 2016-03-29cancelled 2017-01-06
Successor callsigns
Callsigns held now by people who previously held AC2MB.
- Rivai, Muhammad SubhanNJgranted 2013-12-03cancelled 2014-04-01
All historical holders
Every license row we've seen with the callsign AC2MB, oldest first.
- Rivai, Muhammad Subhan NJ2013-11-12 → cancelled 2013-12-03
- Breslin, Michael NJ2017-01-06 active