Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3MST callsign genealogy
Currently held by ZELLEFROW, ALBERT E
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 W3MST's current licensee, walking backwards.
- Ferrari, JasonNCgranted 2026-06-30cancelled 2026-07-28
Successor callsigns
Callsigns held now by people who previously held W3MST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3MST, oldest first.
- ZELLEFROW, ALBERT E PA1998-04-28 → cancelled 2010-04-29
- Ferrari, Jason NC2026-07-28 active