Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4LEN callsign genealogy
Currently held by DOWNING JR, LEN W
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 K4LEN's current licensee, walking backwards.
- KILLEN, JUSTIN KTNgranted 2020-05-11cancelled 2020-10-16
Successor callsigns
Callsigns held now by people who previously held K4LEN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4LEN, oldest first.
- DOWNING JR, LEN W NC2007-04-13 → cancelled 2019-07-04
- KILLEN, JUSTIN K TN2020-10-16 active