Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4IZE callsign genealogy
Currently held by SCHADE, ROBERT O
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 KA4IZE's current licensee, walking backwards.
- SCHADE, ROBIN ASCgranted 2020-03-23cancelled 2020-04-10
Successor callsigns
Callsigns held now by people who previously held KA4IZE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA4IZE, oldest first.
- SCHADE, ROBERT O VA1997-12-08 → cancelled 2009-12-09
- SCHADE, ROBIN A SC2020-04-10 active