Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MJC callsign genealogy
Currently held by CAMPBELL, MARCUS
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 K4MJC's current licensee, walking backwards.
- CAMPBELL, MARCUSALgranted 2025-04-16cancelled 2026-06-23
Successor callsigns
Callsigns held now by people who previously held K4MJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MJC, oldest first.
- DRIEST, CHESTER W FL1996-03-05 → cancelled 2008-03-06
- Carpenter, Julie M FL2012-07-03 → cancelled 2024-07-04
- CAMPBELL, MARCUS AL2026-06-23 active