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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KT4YD callsign genealogy

Currently held by Overholser Jr, Jack B

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 KT4YD's current licensee, walking backwards.

  1. KT5Jactive
    Contest Wireless GroupTXgranted 2023-09-19
  2. KC9ERYcancelled
    Contest Wireless GroupWIgranted 2003-09-08cancelled 2003-12-05

Successor callsigns

Callsigns held now by people who previously held KT4YD.

  1. K4OWcancelled· E
    Overholser Jr, Jack BFLgranted 2012-06-28cancelled 2019-04-30
  2. KT5Jcancelled· E
    Overholser Jr, Jack BTNgranted 2001-03-16cancelled 2001-09-07

All historical holders

Every license row we've seen with the callsign KT4YD, oldest first.

  • Overholser Jr, Jack B FL
    1998-03-17 → cancelled 2001-03-16
  • Overholser Jr, Jack B TN
    2001-09-07 → cancelled 2002-08-17
← Back to KT4YD License history →