Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0DRR callsign genealogy
Currently held by GREVILLIUS, ROBERT 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 W0DRR's current licensee, walking backwards.
- Robinson, David RCOgranted 2013-12-18cancelled 2014-01-07
Successor callsigns
Callsigns held now by people who previously held W0DRR.
- GREVILLIUS, ROBERT AMOgranted 2024-11-13
All historical holders
Every license row we've seen with the callsign W0DRR, oldest first.
- GREVILLIUS, ROBERT A GA2003-10-07 → cancelled 2005-02-05
- Robinson, David R CO2023-10-17 active