Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3CZ callsign genealogy
Currently held by Grier, Lloyd H
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 W3CZ's current licensee, walking backwards.
- Grier, Lloyd HDEgranted 2023-03-17cancelled 2024-05-21
Successor callsigns
Callsigns held now by people who previously held W3CZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3CZ, oldest first.
- HENNIGAN, WILLIAM R FL1992-08-11 → cancelled 2001-02-19
- Hennigan, Jozef L VA2012-04-23 → cancelled 2024-05-01
- Grier, Lloyd H DE2024-05-21 active