Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JU callsign genealogy
Currently held by Todd, Randall B
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 K4JU's current licensee, walking backwards.
- Todd, Randall BVAgranted 2025-11-27cancelled 2026-03-24
Successor callsigns
Callsigns held now by people who previously held K4JU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4JU, oldest first.
- BURCHFIELD, JACK E TN2013-10-31 → cancelled 2026-03-06
- Todd, Randall B VA2026-03-24 active