Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3GRV callsign genealogy
Currently held by Singer, Bret C
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 W3GRV's current licensee, walking backwards.
- Singer, Bret CPAgranted 2002-11-05cancelled 2009-12-11
Successor callsigns
Callsigns held now by people who previously held W3GRV.
- Singer, Bret CPAgranted 2020-04-07