Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1NBV callsign genealogy
Currently held by WENTZEL, MAYNARD 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 W1NBV's current licensee, walking backwards.
- Schwarzchild, MichaelCTgranted 2015-01-14cancelled 2015-02-07
Successor callsigns
Callsigns held now by people who previously held W1NBV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1NBV, oldest first.
- WENTZEL, MAYNARD E MA1989-02-21 → cancelled 2001-02-22
- Schwarzchild, Michael CT2025-01-08 active