Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL7FJ callsign genealogy
Currently held by OSTROM, ROBERT E
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 KL7FJ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KL7FJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KL7FJ, oldest first.
- BRITTAIN, MICHAEL L AK1996-03-21 → cancelled 2008-03-22
- OSTROM, ROBERT E AK2024-07-23 active