Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9FIN callsign genealogy
Currently held by Hilvo, Mikko J
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 W9FIN's current licensee, walking backwards.
- Hilvo, Mikko JWIgranted 2007-04-02cancelled 2007-05-01
Successor callsigns
Callsigns held now by people who previously held W9FIN.
No current licensee on record previously held this callsign.