Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4WMU callsign genealogy
Currently held by WESTERMAN, CARLOS W
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 W4WMU's current licensee, walking backwards.
- WESTERMAN, CARLOS WGAgranted 2010-01-19cancelled 2018-02-06
Successor callsigns
Callsigns held now by people who previously held W4WMU.
No current licensee on record previously held this callsign.