Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9CDX callsign genealogy
Currently held by SW CHICAGO DX CLUB
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 W9CDX's current licensee, walking backwards.
- KD9ASYcancelledSW CHICAGO DX CLUBILgranted 2014-03-26cancelled 2014-04-19
Successor callsigns
Callsigns held now by people who previously held W9CDX.
No current licensee on record previously held this callsign.