Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB6CRG callsign genealogy
Currently held by OPPENHEIMER, DAVID R
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 WB6CRG's current licensee, walking backwards.
- OPPENHEIMER, DAVID RCAgranted 2012-07-17cancelled 2021-01-22
- KA6UOJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held WB6CRG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB6CRG, oldest first.
- OPPENHEIMER, DONALD S NM2002-07-13 → cancelled 2014-10-07
- OPPENHEIMER, DAVID R CA2021-01-22 active