Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5DFS callsign genealogy
Currently held by Sullivan, Don 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 N5DFS's current licensee, walking backwards.
- Sullivan, Don FTXgranted 2015-12-10cancelled 2016-01-01
Successor callsigns
Callsigns held now by people who previously held N5DFS.
No current licensee on record previously held this callsign.