Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9BBH callsign genealogy
Currently held by BRENNAN, 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 W9BBH's current licensee, walking backwards.
- BRENNAN, MICHAELILgranted 2016-06-21cancelled 2016-07-12
Successor callsigns
Callsigns held now by people who previously held W9BBH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9BBH, oldest first.
- JANKAUSKI, RONALD E IL1994-01-04 → cancelled 2006-01-05
- BRENNAN, MICHAEL IL2016-07-12 active