Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4NZZ callsign genealogy
Currently held by HOLMES 3rd, WILLIAM L
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 N4NZZ's current licensee, walking backwards.
- HOLMES 3rd, WILLIAM LOHgranted 2021-11-22cancelled 2021-12-21
Successor callsigns
Callsigns held now by people who previously held N4NZZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4NZZ, oldest first.
- HOLMES III, WILLIAM L VA1996-02-07 → cancelled 2008-02-08
- HOLMES 3rd, WILLIAM L OH2021-12-21 active