Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ3Z callsign genealogy
Currently held by NELSON, BOYD 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 KZ3Z's current licensee, walking backwards.
- Spencer Jr, Alton JPAgranted 2004-03-01cancelled 2007-12-27
Successor callsigns
Callsigns held now by people who previously held KZ3Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ3Z, oldest first.
- NELSON, BOYD L MD1995-12-06 → cancelled 2005-10-23
- SPENCER JR, ALTON J PA2017-12-06 active