Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NC4ZA callsign genealogy
Currently held by Houser, Mark Steven
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 NC4ZA's current licensee, walking backwards.
- Houser, Mark StevenNCgranted 1998-01-30cancelled 2007-05-26
Successor callsigns
Callsigns held now by people who previously held NC4ZA.
No current licensee on record previously held this callsign.