Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KX4ZZ callsign genealogy
Currently held by STEINBRECHER, HERMAN F
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 KX4ZZ's current licensee, walking backwards.
- STEINBRECHER, HERMAN FGAgranted 1993-05-11cancelled 2002-04-10
Successor callsigns
Callsigns held now by people who previously held KX4ZZ.
No current licensee on record previously held this callsign.