Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SDM callsign genealogy
Currently held by Messick, Scott D
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 W9SDM's current licensee, walking backwards.
- Messick, Scott DINgranted 2019-02-20cancelled 2020-09-04
Successor callsigns
Callsigns held now by people who previously held W9SDM.
No current licensee on record previously held this callsign.