Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9BUB callsign genealogy
Currently held by KOWOLS, GILBERT 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 W9BUB's current licensee, walking backwards.
- Mitchell, Robert WILgranted 2014-12-01cancelled 2017-08-18
Successor callsigns
Callsigns held now by people who previously held W9BUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9BUB, oldest first.
- KOWOLS, GILBERT J IL2003-10-10 → cancelled 2015-12-01
- Mitchell, robert W IL2017-08-18 active