Confidence: Medium · Source: FCC ULS · As of 2026-09-16
KM4MSS callsign genealogy
Currently held by Smith, Matthew S
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 KM4MSS's current licensee, walking backwards.
- Smith, Matthew SSCgranted 2014-06-10cancelled 2014-07-08
Successor callsigns
Callsigns held now by people who previously held KM4MSS.
No current licensee on record previously held this callsign.