Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9DTJ callsign genealogy
Currently held by ARNOLD, DAVID G
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 W9DTJ's current licensee, walking backwards.
- Jones, Derek TARgranted 2011-01-28cancelled 2018-08-03
Successor callsigns
Callsigns held now by people who previously held W9DTJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DTJ, oldest first.
- ARNOLD, DAVID G IL2004-01-10 → cancelled 2016-02-23
- Jones, Derek T AR2018-08-03 active