Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS7DX callsign genealogy
Currently held by Southern Arizona DX Association
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 WS7DX's current licensee, walking backwards.
- KF7BMNcancelledSouthern Arizona DX AssociationAZgranted 2009-03-31cancelled 2009-04-21
Successor callsigns
Callsigns held now by people who previously held WS7DX.
No current licensee on record previously held this callsign.