Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4DFE callsign genealogy
Currently held by COLE, JAMES D
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 KJ4DFE's current licensee, walking backwards.
- COLE, JAMES DNCgranted 2016-02-01cancelled 2022-03-15
Successor callsigns
Callsigns held now by people who previously held KJ4DFE.
- Laughmiller, Michael KALgranted 2008-05-10cancelled 2011-09-16
All historical holders
Every license row we've seen with the callsign KJ4DFE, oldest first.
- Laughmiller, Michael K AL2008-04-10 → cancelled 2008-05-10
- COLE, JAMES D NC2022-03-15 active