uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KT4TX callsign genealogy

Currently held by WHITE, JOSEPH E

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 KT4TX's current licensee, walking backwards.

  1. AK4UUcancelled· E
    WHITE, JOSEPH EGAgranted 2012-04-04cancelled 2017-07-01
  2. KK4IMAcancelled· E
    WHITE, JOSEPH EGAgranted 2012-04-04cancelled 2012-05-17
  3. KK4IGWcancelled· G
    WHITE, JOSEPH EGAgranted 2012-04-04cancelled 2012-04-11

Successor callsigns

Callsigns held now by people who previously held KT4TX.

  1. AE4YXactive· E
    STILLS, RICK GKYgranted 2025-09-30
  2. AB4Bactive· E
    WININGER, TIM LALgranted 2024-01-27

All historical holders

Every license row we've seen with the callsign KT4TX, oldest first.

  • WININGER, TIM L AL
    2012-08-17 → cancelled 2013-10-17
  • WHITE, JOSEPH E FL
    2017-07-01 active
← Back to KT4TX License history →