Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3DDF callsign genealogy
Currently held by WIRTH JR, CHARLES F
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 W3DDF's current licensee, walking backwards.
- WIRTH JR, CHARLES FMDgranted 2006-01-04cancelled 2009-02-13
Successor callsigns
Callsigns held now by people who previously held W3DDF.
No current licensee on record previously held this callsign.