Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4HST callsign genealogy
Currently held by Rosenberger, Robin J
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 K4HST's current licensee, walking backwards.
- Rosenberger, Robin JFLgranted 2025-12-10cancelled 2026-01-21
Successor callsigns
Callsigns held now by people who previously held K4HST.
No current licensee on record previously held this callsign.