Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9DUB callsign genealogy
Currently held by Kashinski, Frank J
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 W9DUB's current licensee, walking backwards.
- Kashinski, Frank JWIgranted 2006-02-11cancelled 2007-04-06
Successor callsigns
Callsigns held now by people who previously held W9DUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DUB, oldest first.
- KASHINSKI, FRANK E WI1998-10-22 → cancelled 2004-10-26
- Kashinski, Frank J WI2017-03-01 active