Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9BM callsign genealogy
Currently held by MIROCHA, JOHN A
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 AC9BM's current licensee, walking backwards.
- MIROCHA, JOHN AILgranted 2011-12-09cancelled 2012-03-15
Successor callsigns
Callsigns held now by people who previously held AC9BM.
No current licensee on record previously held this callsign.