Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8GRZ callsign genealogy
Currently held by Schonewald, Benjamin T
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 W8GRZ's current licensee, walking backwards.
- Schonewald, Benjamin TUTgranted 2021-07-13cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held W8GRZ.
- Rose, David AOHgranted 2019-05-03
All historical holders
Every license row we've seen with the callsign W8GRZ, oldest first.
- Rose, David A OH2018-11-09 → cancelled 2019-05-03
- Schonewald, Benjamin T UT2025-12-09 active