Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1SGM callsign genealogy
Currently held by Mason, Scott G
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 K1SGM's current licensee, walking backwards.
- Mason, Scott GNHgranted 2019-11-22cancelled 2020-05-15
Successor callsigns
Callsigns held now by people who previously held K1SGM.
No current licensee on record previously held this callsign.