Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6DBM callsign genealogy
Currently held by GRAHAM IV, OSCAR 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 W6DBM's current licensee, walking backwards.
- GRAHAM IV, OSCAR RCAgranted 2014-11-06cancelled 2015-08-11
Successor callsigns
Callsigns held now by people who previously held W6DBM.
- K6SBactiveCONEJO VALLEY WIRELESS ASSOCIATIONCAgranted 2020-09-10
All historical holders
Every license row we've seen with the callsign W6DBM, oldest first.
- CONEJO VALLEY WIRELESS ASSOCIATION CA1997-08-08 → cancelled 2000-09-06
- McRae, DANA B CA2002-09-27 → cancelled 2014-09-30
- GRAHAM IV, OSCAR R CA2025-07-25 active