Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ONE callsign genealogy
Currently held by ZUK, THEODORE J
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 W4ONE's current licensee, walking backwards.
- ZUK, GREGORY MVAgranted 1997-03-20cancelled 2006-08-29
Successor callsigns
Callsigns held now by people who previously held W4ONE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ONE, oldest first.
- ZUK, THEODORE J VA1994-07-14 → cancelled 2006-07-15
- ZUK, GREGORY M VA2016-08-03 active