Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4STM callsign genealogy
Currently held by STM Radio Club
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 KM4STM's current licensee, walking backwards.
- KM4FURcancelledSTM Radio ClubVAgranted 2014-11-12cancelled 2014-12-12
Successor callsigns
Callsigns held now by people who previously held KM4STM.
No current licensee on record previously held this callsign.