Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1ZXH callsign genealogy
Currently held by SAWYER, BARBARA J
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 N1ZXH's current licensee, walking backwards.
- Zhang, XuehuoCAgranted 2022-12-09cancelled 2023-01-04
Successor callsigns
Callsigns held now by people who previously held N1ZXH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1ZXH, oldest first.
- SAWYER, BARBARA J MA1997-12-02 → cancelled 2009-12-03
- Zhang, Xuehuo SC2023-01-04 active