Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4HYS callsign genealogy
Currently held by SPRAGUE, MICHAEL M
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 KN4HYS's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KN4HYS.
- SPRAGUE, MIKE MNCgranted 2017-12-22