Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DFS callsign genealogy
Currently held by Souza, David 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 W1DFS's current licensee, walking backwards.
- Souza, David FMAgranted 2006-04-28cancelled 2006-09-30
Successor callsigns
Callsigns held now by people who previously held W1DFS.
No current licensee on record previously held this callsign.