Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4DER callsign genealogy
Currently held by LABADIE, JUSTIN T
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 KV4DER's current licensee, walking backwards.
- LABADIE, JUSTIN TCAgranted 2008-01-24cancelled 2008-04-26
Successor callsigns
Callsigns held now by people who previously held KV4DER.
No current licensee on record previously held this callsign.