Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JJL callsign genealogy
Currently held by PLANK, DONALD L
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 K0JJL's current licensee, walking backwards.
- Lewis, James LAZgranted 2012-10-10cancelled 2013-10-01
Successor callsigns
Callsigns held now by people who previously held K0JJL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0JJL, oldest first.
- PLANK, DONALD L KS1997-01-02 → cancelled 2009-01-03
- Lewis, James L AZ2013-10-01 → cancelled 2026-03-07