Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9YZU callsign genealogy
Currently held by Sylvester, Stephen R
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 W9YZU's current licensee, walking backwards.
- Sylvester, Stephen RINgranted 2002-04-10cancelled 2004-11-13
Successor callsigns
Callsigns held now by people who previously held W9YZU.
No current licensee on record previously held this callsign.