Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI9TIM callsign genealogy
Currently held by KALLIO, TIM S
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 WI9TIM's current licensee, walking backwards.
- KALLIO, TIM SWIgranted 2004-03-18cancelled 2008-01-23
Successor callsigns
Callsigns held now by people who previously held WI9TIM.
No current licensee on record previously held this callsign.