Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2SYO callsign genealogy
Currently held by Hauptman, William L
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 KC2SYO's current licensee, walking backwards.
- Hauptman, William LNYgranted 2022-09-08cancelled 2023-02-22
Successor callsigns
Callsigns held now by people who previously held KC2SYO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC2SYO, oldest first.
- Hauptman, William L NY2008-03-04 → cancelled 2020-03-05
- Hauptman, William L NY2023-02-22 active