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

KK0SS callsign genealogy

Currently held by SPARKS, STEVEN 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 KK0SS's current licensee, walking backwards.

  1. W1SSSactive· E
    KOERNER, LEO AMAgranted 2020-08-01
  2. KX2LEOactive· T
    Galvan, MartinFLgranted 2025-05-10
  3. KQ4YFLcancelled· T
    Galvan, MartinFLgranted 2024-11-08cancelled 2025-05-10

Successor callsigns

Callsigns held now by people who previously held KK0SS.

  1. K0RHcancelled· E
    COCHRAN, JAMES EKSgranted 2012-03-23cancelled 2015-11-01

All historical holders

Every license row we've seen with the callsign KK0SS, oldest first.

  • COCHRAN, JAMES E KS
    1997-10-07 → cancelled 2002-05-28
  • SPARKS, STEVEN S MO
    2016-09-20 active
← Back to KK0SS License history →