Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KQ4TZ callsign genealogy
Currently held by CROSSMAN, KARL R
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 KQ4TZ's current licensee, walking backwards.
- KD4GRIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KQ4TZ.
- Crossman, Karl RNCgranted 2021-09-08