Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB9GIU callsign genealogy
Currently held by MERKEL, RUSSELL D
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 WB9GIU's current licensee, walking backwards.
- Merkel, Stephen DFLgranted 2021-06-04
Successor callsigns
Callsigns held now by people who previously held WB9GIU.
- Merkel, Stephen DFLgranted 2021-06-04
All historical holders
Every license row we've seen with the callsign WB9GIU, oldest first.
- MERKEL, RUSSELL D FL2002-11-05 → cancelled 2012-07-13
- Merkel, Stephen D FL2014-06-21 → cancelled 2021-06-04