Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4DDS callsign genealogy
Currently held by Sullivan, Dwight D
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 KT4DDS's current licensee, walking backwards.
- Sullivan, Dwight DFLgranted 2018-06-27cancelled 2018-07-17
Successor callsigns
Callsigns held now by people who previously held KT4DDS.
- Sullivan, Dwight DFLgranted 2025-12-09