Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9UYS callsign genealogy
Currently held by Hamm, Myron D
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 K9UYS's current licensee, walking backwards.
- Hamm, Myron DINgranted 2016-09-14cancelled 2017-02-04
Successor callsigns
Callsigns held now by people who previously held K9UYS.
No current licensee on record previously held this callsign.