Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2MSX callsign genealogy
Currently held by SMITH, MARTIN J
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 W2MSX's current licensee, walking backwards.
- SMITH, MARTIN JNHgranted 2022-02-23cancelled 2022-03-15
Successor callsigns
Callsigns held now by people who previously held W2MSX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W2MSX, oldest first.
- MOSTEK, FRANK C NY1997-05-12 → cancelled 2009-05-13
- SMITH, MARTIN J NH2022-03-15 active