Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0TDX callsign genealogy
Currently held by Twin City 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 W0TDX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0TDX.
- WT0DXcancelledTwin City DX AssociationMNgranted 2002-08-06cancelled 2002-08-28
All historical holders
Every license row we've seen with the callsign W0TDX, oldest first.
- Twin City DX Association MN1998-11-06 → cancelled 2002-08-06
- Twin City DX Association MN2012-12-13 → cancelled 2024-08-29