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

KO4T callsign genealogy

Currently held by TATTERSALL, DEREK 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 KO4T's current licensee, walking backwards.

  1. KW4XRcancelled· E
    DEAN, JAMIE RNCgranted 2014-09-26cancelled 2019-03-12
  2. WX4PUPcancelled· E
    DEAN, JAMIE RNCgranted 2014-09-26cancelled 2016-09-08
  3. K4RITactive· G
    THORN, MICHAEL KNCgranted 2017-10-17
  4. KM4OCNcancelled· G
    THORN, MICHAEL KNCgranted 2015-10-14cancelled 2017-10-17

Successor callsigns

Callsigns held now by people who previously held KO4T.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KO4T, oldest first.

  • TATTERSALL, DEREK L NC
    2007-02-07 → cancelled 2016-12-29
  • DEAN, JAMIE R NC
    2019-03-12 active
← Back to KO4T License history →