Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NZ3K callsign genealogy
Currently held by DUVALL, DOROTHY 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 NZ3K's current licensee, walking backwards.
- ROSADO, JASONPAgranted 2006-08-10cancelled 2011-11-29
Successor callsigns
Callsigns held now by people who previously held NZ3K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NZ3K, oldest first.
- DUVALL, DOROTHY E MD1990-05-01 → cancelled 2002-05-02
- ROSADO, JASON PA2021-10-13 active