Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9GK callsign genealogy
Currently held by DEEM, JAY 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 W9GK's current licensee, walking backwards.
- Deem, Jake OCOgranted 2014-07-10cancelled 2021-12-11
Successor callsigns
Callsigns held now by people who previously held W9GK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9GK, oldest first.
- DEEM, JAY A IL2013-12-31 → cancelled 2020-02-13
- Deem, Jake O CO2021-12-11 active