Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6OST callsign genealogy
Currently held by OSTRANDER, Steve A
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 K6OST's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6OST.
- OSTRANDER, ALBERT SCAgranted 2016-07-27cancelled 2023-10-11
All historical holders
Every license row we've seen with the callsign K6OST, oldest first.
- BRACKETT, SUMNER M CA1987-09-15 → cancelled 1999-09-16
- OSTRANDER, Steve A CA2016-07-27 → cancelled 2023-09-09