Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4IIN callsign genealogy
Currently held by Milosch, Joseph
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 K4IIN's current licensee, walking backwards.
- Milosch, JosephGAgranted 2018-08-16cancelled 2019-10-18
Successor callsigns
Callsigns held now by people who previously held K4IIN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IIN, oldest first.
- BOSS, BERNIE A FL2006-11-29 → cancelled 2019-02-22
- Milosch, Joseph GA2019-10-18 active