Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9YDR callsign genealogy
Currently held by LA CROSSE COUNTY SKYWARN
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 KB9YDR'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 KB9YDR.
- WX9ARXactiveLA CROSSE COUNTY SKYWARNWIgranted 2020-11-13