Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3CYB callsign genealogy
Currently held by COTTON, CHARLES 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 K3CYB's current licensee, walking backwards.
- COTTON, CHARLES JDEgranted 2010-05-18cancelled 2018-06-26
Successor callsigns
Callsigns held now by people who previously held K3CYB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3CYB, oldest first.
- GELLERT, ALVIN W PA1988-05-31 → cancelled 2000-06-01
- COTTON, CHARLES J DE2018-06-26 active