Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0PBZ callsign genealogy
Currently held by WILLIAMS, KERSTIN M
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 N0PBZ's current licensee, walking backwards.
- Williams, Kerstin MORgranted 2007-11-19cancelled 2007-12-28
Successor callsigns
Callsigns held now by people who previously held N0PBZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0PBZ, oldest first.
- WILLIAMS, KERSTIN M CO1991-08-20 → cancelled 2003-08-21
- WILLIAMS, KERSTIN M AZ2017-10-24 active