Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6RIZ callsign genealogy
Currently held by RIZIO, LAWRENCE A
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 K6RIZ's current licensee, walking backwards.
- RIZIO, LAWRENCE ACAgranted 2006-11-20cancelled 2008-11-29
Successor callsigns
Callsigns held now by people who previously held K6RIZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6RIZ, oldest first.
- GERSHUNY SR, HAROLD U CA1996-07-08 → cancelled 2008-07-09
- RIZIO, LAWRENCE A CA2018-09-04 active