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

KO4LCB callsign genealogy

Currently held by Hammond, Tommy S

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 KO4LCB's current licensee, walking backwards.

  1. W9NTactive· E
    Nicholas, JohnILgranted 2023-06-22
  2. N9REIcancelled· E
    Nicholas, JohnILgranted 2016-01-12cancelled 2023-06-22
  3. KC9ISMcancelled· T
    Nicholas, JohnILgranted 2006-01-26cancelled 2006-02-25

Successor callsigns

Callsigns held now by people who previously held KO4LCB.

  1. W4LCBactive· E
    Hammond, Tommy STNgranted 2024-11-30
  2. W9NTcancelled· E
    Hammond, Tommy STNgranted 2021-05-07cancelled 2021-05-28

All historical holders

Every license row we've seen with the callsign KO4LCB, oldest first.

  • Hammond, Tommy S TN
    2021-01-19 → cancelled 2021-05-07
  • Hammond, Tommy S TN
    2021-05-28 → cancelled 2024-11-30
← Back to KO4LCB License history →