Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR1JAD callsign genealogy
Currently held by Newstedt, Jack S
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 KR1JAD's current licensee, walking backwards.
- Newsted, Jack SFLgranted 2018-09-25cancelled 2018-10-16
Successor callsigns
Callsigns held now by people who previously held KR1JAD.
No current licensee on record previously held this callsign.