Confidence: Medium · Source: FCC ULS · As of 2026-09-11
W0CSZ callsign genealogy
Currently held by BYRNE, ROBERT H
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 W0CSZ's current licensee, walking backwards.
- Byrne, Patricia AVAgranted 2020-07-01cancelled 2021-02-27
Successor callsigns
Callsigns held now by people who previously held W0CSZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CSZ, oldest first.
- BYRNE, ROBERT H FL1995-05-17 → cancelled 2007-05-18
- Byrne, Patricia A VA2021-02-27 active