Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4XZ callsign genealogy
Currently held by LAVIS, JOHN L
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 W4XZ's current licensee, walking backwards.
- LAVIS, JOHN LGAgranted 2014-05-01cancelled 2018-06-05
Successor callsigns
Callsigns held now by people who previously held W4XZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4XZ, oldest first.
- RICE, SAMUEL M SC2007-08-22 → cancelled 2016-05-17
- LAVIS, JOHN L GA2018-06-05 active