Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5DSM callsign genealogy
Currently held by McMasters, David 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 K5DSM's current licensee, walking backwards.
- McMasters, David STXgranted 2016-03-21cancelled 2016-05-20
Successor callsigns
Callsigns held now by people who previously held K5DSM.
No current licensee on record previously held this callsign.