Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4RKS callsign genealogy
Currently held by Erdosi Szucs, Frigyes
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 KB4RKS's current licensee, walking backwards.
- Erdosi-Szucs, FrigyesCAgranted 2021-09-03cancelled 2023-02-28
Successor callsigns
Callsigns held now by people who previously held KB4RKS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4RKS, oldest first.
- DIVVER, MARLY S WI2006-07-11 → cancelled 2018-10-10
- Erdosi Szucs, Frigyes CA2023-02-28 active