Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB6TOZ callsign genealogy
Currently held by Rotter, David A
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 WB6TOZ's current licensee, walking backwards.
- Rotter, David ACAgranted 2019-04-01cancelled 2019-04-19
Successor callsigns
Callsigns held now by people who previously held WB6TOZ.
- Rotter, Gary DCAgranted 2025-04-09
All historical holders
Every license row we've seen with the callsign WB6TOZ, oldest first.
- Rotter, Gary D CA2002-08-14 → cancelled 2005-05-07
- Rotter, David A CA2019-04-19 active