Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4GO callsign genealogy
Currently held by St Cyr, William 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 KK4GO's current licensee, walking backwards.
- St Cyr, William JFLgranted 2012-02-10cancelled 2013-04-30
Successor callsigns
Callsigns held now by people who previously held KK4GO.
No current licensee on record previously held this callsign.