Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD1TAT callsign genealogy
Currently held by Winczewski, Christopher 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 KD1TAT's current licensee, walking backwards.
- Winczewski, Christopher FMAgranted 2016-02-25cancelled 2016-04-16
Successor callsigns
Callsigns held now by people who previously held KD1TAT.
- Winczewski, Christopher FMAgranted 2016-08-02cancelled 2021-07-24