Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KA3RAZ callsign genealogy
Currently held by Zintner Jr, Robert 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 KA3RAZ's current licensee, walking backwards.
- Zintner Jr, Robert APAgranted 2020-11-23cancelled 2020-12-11
Successor callsigns
Callsigns held now by people who previously held KA3RAZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA3RAZ, oldest first.
- DOWNING, MARK K PA1991-06-04 → cancelled 2003-06-05
- Zintner Jr, Robert A FL2020-12-11 active