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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AB4B callsign genealogy

Currently held by HOLT JR, WILLIAM H

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 AB4B's current licensee, walking backwards.

  1. KT4TXactive· E
    WHITE, JOSEPH EFLgranted 2017-07-01
  2. AK4UUcancelled· E
    WHITE, JOSEPH EGAgranted 2012-04-04cancelled 2017-07-01
  3. KK4IMAcancelled· E
    WHITE, JOSEPH EGAgranted 2012-04-04cancelled 2012-05-17
  4. KK4IGWcancelled· G
    WHITE, JOSEPH EGAgranted 2012-04-04cancelled 2012-04-11

Successor callsigns

Callsigns held now by people who previously held AB4B.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AB4B, oldest first.

  • HOLT JR, WILLIAM H GA
    2005-03-28 → cancelled 2011-09-22
  • WININGER, TIM L AL
    2024-01-27 active
← Back to AB4B License history →