Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9JAK callsign genealogy
Currently held by Dilger, Jack H
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 W9JAK's current licensee, walking backwards.
- Dilger, Jack HWIgranted 2009-02-27cancelled 2009-04-04
Successor callsigns
Callsigns held now by people who previously held W9JAK.
No current licensee on record previously held this callsign.