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

KO4ZZT callsign genealogy

Currently held by Calloway Jr, David L

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 KO4ZZT's current licensee, walking backwards.

  1. KK4ETNcancelled· T
    Calloway Jr, David LNCgranted 2022-03-08cancelled 2022-04-29
  2. KM4GNXcancelled· T
    Calloway Jr, David LNCgranted 2018-07-10cancelled 2022-03-08
  3. N4AFVactive· G
    Evans, Douglas EFLgranted 2020-12-15
  4. KO4JPNcancelled· T
    Evans, Douglas EFLgranted 2020-11-20cancelled 2020-12-15

Successor callsigns

Callsigns held now by people who previously held KO4ZZT.

No current licensee on record previously held this callsign.

← Back to KO4ZZT License history →