Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5SYL callsign genealogy
Currently held by KUPERS, SYLVIAH 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 K5SYL's current licensee, walking backwards.
- Kupers, William JARgranted 2014-10-14cancelled 2017-07-21
- N3GXSno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K5SYL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5SYL, oldest first.
- KUPERS, SYLVIAH J AR2010-03-12 → cancelled 2015-07-19
- Kupers, William J AR2017-07-21 active