Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4QQ callsign genealogy
Currently held by TORRES, JUAN C
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 KJ4QQ's current licensee, walking backwards.
- TORRES, JUAN CVAgranted 2017-02-18cancelled 2017-03-07
Successor callsigns
Callsigns held now by people who previously held KJ4QQ.
- WILLIAMS, MARK LWVgranted 2017-01-05