Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3MAS callsign genealogy
Currently held by SHANBLATT, MICHAEL A
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 W3MAS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W3MAS.
- SAYLOR, MARK ATXgranted 2005-01-14cancelled 2017-01-18
All historical holders
Every license row we've seen with the callsign W3MAS, oldest first.
- SAYLOR, MARK A VA2003-05-28 → cancelled 2005-01-14
- SHANBLATT, MICHAEL A PA2024-02-13 active