Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3ZS callsign genealogy
Currently held by Sigismondi, Randy T
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 W3ZS's current licensee, walking backwards.
- Sigismondi, Randy TMDgranted 2002-01-28cancelled 2008-09-09
Successor callsigns
Callsigns held now by people who previously held W3ZS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3ZS, oldest first.
- MODESTE, RONALD L FL1997-03-27 → cancelled 2006-07-10
- Sigismondi, Randy T MD2019-01-30 active