Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IRA callsign genealogy
Currently held by Rosenberg, Ira
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 K4IRA's current licensee, walking backwards.
- Kripton, Kira NCAgranted 2019-01-30cancelled 2022-04-19
Successor callsigns
Callsigns held now by people who previously held K4IRA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IRA, oldest first.
- Rosenberg, Ira FL2009-08-08 → cancelled 2021-11-05
- Kripton, Kira N CA2022-04-19 active