Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6DUB callsign genealogy
Currently held by CHIRONE, MARIO L
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 W6DUB's current licensee, walking backwards.
- CHOW, WILEY HCAgranted 2005-06-04cancelled 2014-03-15
Successor callsigns
Callsigns held now by people who previously held W6DUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6DUB, oldest first.
- CHIRONE, MARIO L CA1995-05-11 → cancelled 2007-05-12
- CHOW, WILEY H CA2025-08-05 active