Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7YHX callsign genealogy
Currently held by Bielstein, Matthew
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 K7YHX's current licensee, walking backwards.
- Bielstein, MatthewWAgranted 2024-12-27cancelled 2025-03-25
Successor callsigns
Callsigns held now by people who previously held K7YHX.
No current licensee on record previously held this callsign.