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

KI0U callsign genealogy

Currently held by SMITH, ROGER D

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 KI0U's current licensee, walking backwards.

  1. KK0Wactive· E
    Block, Seth MCTgranted 2024-12-07
  2. KC1VNIcancelled· E
    Block, Seth MCTgranted 2024-10-26cancelled 2024-12-07

Successor callsigns

Callsigns held now by people who previously held KI0U.

  1. AI0Hcancelled· E
    SMITH, ROGER DMOgranted 2020-10-06cancelled 2021-06-04

All historical holders

Every license row we've seen with the callsign KI0U, oldest first.

  • FINDLEY JR, FLETCHER P MN
    1994-07-21 → cancelled 2006-07-22
  • Foster, Randal C IA
    2007-07-03 → cancelled 2019-07-04
  • SMITH, ROGER D MO
    2019-07-23 → cancelled 2020-10-06
  • SMITH, ROGER D MO
    2022-11-18 active
← Back to KI0U License history →