Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT4TW callsign genealogy
Currently held by T4T Contest 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 WT4TW's current licensee, walking backwards.
- KM7CEXcancelledT4T Contest ClubORgranted 2025-09-04cancelled 2025-09-23
Successor callsigns
Callsigns held now by people who previously held WT4TW.
No current licensee on record previously held this callsign.