Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0FAT callsign genealogy
Currently held by HELLSTERN, ROBERT 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 K0FAT's current licensee, walking backwards.
- Kinlund, Kenneth ANEgranted 2021-05-07cancelled 2021-05-28
Successor callsigns
Callsigns held now by people who previously held K0FAT.
- HELLSTERN JR, ROBERT FIAgranted 2021-08-09
All historical holders
Every license row we've seen with the callsign K0FAT, oldest first.
- HELLSTERN, ROBERT F IA1998-12-16 → cancelled 2001-10-02
- Kinlund, Kenneth A NE2021-05-28 active