Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2HDS callsign genealogy
Currently held by Sollfrank, Horst
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 K2HDS's current licensee, walking backwards.
- Sollfrank, HorstCAgranted 2020-10-02cancelled 2020-10-31
Successor callsigns
Callsigns held now by people who previously held K2HDS.
- Sollfrank, JohnMSgranted 2022-03-04