Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7JAC callsign genealogy
Currently held by JACKSON HOLE AREA 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 K7JAC's current licensee, walking backwards.
- Mark, JackCAgranted 2017-07-21cancelled 2018-05-11
Successor callsigns
Callsigns held now by people who previously held K7JAC.
- WY7JHactiveJACKSON HOLE AREA AMATEUR RADIO CLUBWYgranted 2026-04-08
All historical holders
Every license row we've seen with the callsign K7JAC, oldest first.
- JACKSON HOLE AREA AMATEUR RADIO CLUB WY2008-07-02 → cancelled 2016-04-12
- Mark, Jack CA2018-05-11 active