Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9CTJ callsign genealogy
Currently held by DUNKELBERGER, WILLIAM D
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 W9CTJ's current licensee, walking backwards.
- Dunkelberger, William DVAgranted 2008-02-25cancelled 2014-03-08
Successor callsigns
Callsigns held now by people who previously held W9CTJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9CTJ, oldest first.
- DUNKELBERGER, WILLIAM D VA2002-11-26 → cancelled 2007-08-24
- Dunkelberger, William D VA2025-04-01 active