Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MSM callsign genealogy
Currently held by MCINTOSH, MATT 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 W5MSM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W5MSM.
No current licensee on record previously held this callsign.