Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NZ3B callsign genealogy
Currently held by Hlavin II, James E
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 NZ3B's current licensee, walking backwards.
- Hlavin II, James EGAgranted 2024-10-25cancelled 2026-02-03
Successor callsigns
Callsigns held now by people who previously held NZ3B.
- Closson, Erik CPAgranted 2023-11-10
All historical holders
Every license row we've seen with the callsign NZ3B, oldest first.
- SABLE, WILLIAM M PA2010-01-26 → cancelled 2022-04-12
- Closson, Erik C PA2022-05-10 → cancelled 2023-11-10
- Hlavin II, James E GA2026-02-03 active