Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ7X callsign genealogy
Currently held by HAUSHERR, MAURICE 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 KZ7X's current licensee, walking backwards.
- KD7UDJcancelledSouthwest Arizona Contest ClubAZgranted 2003-01-27cancelled 2003-03-04
Successor callsigns
Callsigns held now by people who previously held KZ7X.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ7X, oldest first.
- HAUSHERR, MAURICE R OR1990-12-11 → cancelled 2002-12-12
- SOUTHWEST ARIZONA CONTEST CLUB AZ2023-01-19 active