Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM5MM callsign genealogy
Currently held by MOOS, WILLIAM 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 WM5MM's current licensee, walking backwards.
- MOOS, WILLIAM HTXgranted 2013-11-26cancelled 2016-04-12
Successor callsigns
Callsigns held now by people who previously held WM5MM.
No current licensee on record previously held this callsign.