Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4JLC callsign genealogy
Currently held by SMITH, MARCUS C
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 KD4JLC's current licensee, walking backwards.
- Carr, Jeffery LALgranted 2011-03-10cancelled 2011-05-27
Successor callsigns
Callsigns held now by people who previously held KD4JLC.
- Carr, Jeffery LALgranted 2021-03-29
All historical holders
Every license row we've seen with the callsign KD4JLC, oldest first.
- SMITH, MARCUS C NC1992-07-21 → cancelled 2004-07-22
- Carr, Jeffery L AL2011-05-27 → cancelled 2011-06-21