Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR9T callsign genealogy
Currently held by Krain, Burton F
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 KR9T's current licensee, walking backwards.
- Krain, Burton FILgranted 2012-08-21cancelled 2016-06-01
Successor callsigns
Callsigns held now by people who previously held KR9T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR9T, oldest first.
- NINIO, SHIMON J NV2004-02-17 → cancelled 2016-05-11
- Krain, Burton F IL2026-03-05 active