Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1DFD callsign genealogy
Currently held by SZYMANSKI JR, HENRY W
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 W1DFD's current licensee, walking backwards.
- SZYMANSKI JR, HENRY WCTgranted 1998-12-18cancelled 2003-10-07
Successor callsigns
Callsigns held now by people who previously held W1DFD.
No current licensee on record previously held this callsign.