Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1GDI callsign genealogy
Currently held by SZADIS, LINDA M
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 W1GDI's current licensee, walking backwards.
- SZADIS, LINDA MMEgranted 2007-05-10cancelled 2009-12-04
Successor callsigns
Callsigns held now by people who previously held W1GDI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1GDI, oldest first.
- LANGELO, VINCENT A MA1997-11-13 → cancelled 2009-11-14
- SZADIS, LINDA M ME2020-01-28 active