Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9IHW callsign genealogy
Currently held by Bonow, John G
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 W9IHW's current licensee, walking backwards.
- Bonow, John GWIgranted 2007-01-08cancelled 2007-10-30
Successor callsigns
Callsigns held now by people who previously held W9IHW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9IHW, oldest first.
- BONOW, GUSTAV C WI1996-04-10 → cancelled 2005-12-01
- Bonow, John G WI2017-08-26 active