Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MGZ callsign genealogy
Currently held by BAUMGARTEN, DANIEL H
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 W4MGZ's current licensee, walking backwards.
- Walker, CarlFLgranted 2024-07-23cancelled 2024-11-19
Successor callsigns
Callsigns held now by people who previously held W4MGZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MGZ, oldest first.
- BAUMGARTEN, DANIEL H NC2009-08-19 → cancelled 2021-10-27
- Walker, Carl FL2024-11-19 active