Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4MIG callsign genealogy
Currently held by KOTZE, JOHN
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 W4MIG's current licensee, walking backwards.
- Calvert Jr, Marvin OFLgranted 2017-12-20cancelled 2018-01-30
Successor callsigns
Callsigns held now by people who previously held W4MIG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MIG, oldest first.
- KOTZE, JOHN FL1995-09-26 → cancelled 2007-09-27
- Calvert Jr, Marvin O FL2018-01-30 active