Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8EIZ callsign genealogy
Currently held by CRYDERMAN, WILLIAM DALE
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 N8EIZ's current licensee, walking backwards.
- CRYDERMAN, WILLIAM MMIgranted 2004-04-03cancelled 2008-02-09
Successor callsigns
Callsigns held now by people who previously held N8EIZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8EIZ, oldest first.
- CRYDERMAN, WILLIAM DALE MI2001-03-13 → cancelled 2005-11-16
- CRYDERMAN, WILLIAM M MI2018-01-11 active