Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9RKO callsign genealogy
Currently held by Ylinen, Steve L
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 W9RKO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W9RKO.
No current licensee on record previously held this callsign.