Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0OZZ callsign genealogy
Currently held by Kalafice, John W
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 W0OZZ's current licensee, walking backwards.
- Kalafice, John WOHgranted 2001-03-12cancelled 2002-11-15
Successor callsigns
Callsigns held now by people who previously held W0OZZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0OZZ, oldest first.
- KALAFICE, NICKOLAS L OH1997-08-29 → cancelled 2002-04-30
- Kalafice, John W SC2022-09-27 active