Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM3SH callsign genealogy
Currently held by Sierra Madre Emergency Communications Team
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 WM3SH's current licensee, walking backwards.
- KM6PVWcancelledSierra Madre Emergency Communications TeamCAgranted 2018-02-02cancelled 2018-02-24
Successor callsigns
Callsigns held now by people who previously held WM3SH.
No current licensee on record previously held this callsign.