Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3KF callsign genealogy
Currently held by STEINGRUBE, AUSTIN S
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 AC3KF's current licensee, walking backwards.
- STEINGRUBE, AUSTIN SMDgranted 2019-06-27cancelled 2023-06-26
Successor callsigns
Callsigns held now by people who previously held AC3KF.
- STEINGRUBE, AUSTIN SMDgranted 2024-09-24