Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6KAT callsign genealogy
Currently held by Rio Hondo Amateur Radio Club
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 W6KAT's current licensee, walking backwards.
- KM6JXRcancelledRio Hondo Amateur Radio ClubCAgranted 2017-04-17cancelled 2017-06-27
Successor callsigns
Callsigns held now by people who previously held W6KAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6KAT, oldest first.
- Olejnik, Donald A CA2007-08-21 → cancelled 2015-08-23
- Rio Hondo Amateur Radio Club CA2017-06-27 active