Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG0CK callsign genealogy
Currently held by SYLVESTER, TIM C
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 KG0CK's current licensee, walking backwards.
- BARNETT, ALLEN EIAgranted 2018-11-20cancelled 2026-08-14
Successor callsigns
Callsigns held now by people who previously held KG0CK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG0CK, oldest first.
- SYLVESTER, TIM C IA2012-12-27 → cancelled 2025-01-07
- BARNETT, ALLEN E IA2026-08-14 active