Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9WBT callsign genealogy
Currently held by Nintzel, James S
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 W9WBT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W9WBT.
No current licensee on record previously held this callsign.