Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MSC callsign genealogy
Currently held by COWART, MARK 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 W4MSC's current licensee, walking backwards.
- COWART, MARK SFLgranted 1996-04-10cancelled 2002-09-13
Successor callsigns
Callsigns held now by people who previously held W4MSC.
No current licensee on record previously held this callsign.