Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4JAT callsign genealogy
Currently held by Tata, Dennis M
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 KJ4JAT's current licensee, walking backwards.
- Tata, Dennis MFLgranted 2006-01-23cancelled 2009-01-23
Successor callsigns
Callsigns held now by people who previously held KJ4JAT.
- Tata, Dennis MTNgranted 2019-02-20