Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX7RS callsign genealogy
Currently held by SIEVERS, ROY K
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 KX7RS's current licensee, walking backwards.
- SIEVERS, ROY KAZgranted 2010-04-06cancelled 2017-05-31
Successor callsigns
Callsigns held now by people who previously held KX7RS.
- SIEVERS, ROY KAZgranted 2017-09-16