Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KR1Z callsign genealogy
Currently held by RADSKY, ALEXANDER 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 KR1Z's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KR1Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR1Z, oldest first.
- RADSKY, ALEXANDER A NH1998-04-13 → cancelled 2010-04-14
- HERRICK, BRUCE F CA2020-04-29 active