Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5ZXM callsign genealogy
Currently held by SCHMIDT, JOHN J
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 W5ZXM's current licensee, walking backwards.
- MC MILLAN, CHARLES GMOgranted 2016-01-21cancelled 2016-02-17
Successor callsigns
Callsigns held now by people who previously held W5ZXM.
- SCHMIDT, JOHN JOKgranted 2009-10-23cancelled 2018-10-22
All historical holders
Every license row we've seen with the callsign W5ZXM, oldest first.
- SCHMIDT, JOHN J OK2007-03-22 → cancelled 2009-10-23
- MC MILLAN, CHARLES G MO2026-01-03 active