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

KT4Z callsign genealogy

Currently held by Southard Jr, James 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 KT4Z's current licensee, walking backwards.

  1. W4OOMcancelled· E
    Southard Jr, James ESCgranted 2020-04-24cancelled 2020-12-29
  2. KO4CYHcancelled· T
    Southard Jr, James ESCgranted 2020-03-26cancelled 2020-04-24

Successor callsigns

Callsigns held now by people who previously held KT4Z.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KT4Z, oldest first.

  • Blevins, Richard D VA
    2014-07-24 → cancelled 2018-12-05
  • Southard Jr, James E SC
    2020-12-29 active