Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7QOO callsign genealogy
Currently held by CARLSON, JUSTIN Q
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 KD7QOO's current licensee, walking backwards.
- CARLSON, JUSTIN QIDgranted 1990-11-27cancelled 2002-04-02
Successor callsigns
Callsigns held now by people who previously held KD7QOO.
- CARLSON, JUSTIN QWYgranted 2021-05-18