Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0IZ callsign genealogy
Currently held by ZDOROV, IGOR P
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 W0IZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0IZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0IZ, oldest first.
- REPP, DALE E IA1998-07-20 → cancelled 1999-06-03
- ZDOROV, IGOR P CO2021-06-09 active