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

KO7V callsign genealogy

Currently held by Fial, Ronald A

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 KO7V's current licensee, walking backwards.

  1. AC7XNcancelled· E
    Fial, Ronald AORgranted 2003-02-06cancelled 2003-03-18
  2. KD7UHBcancelled· E
    Fial, Ronald AORgranted 2003-02-06cancelled 2003-02-21

Successor callsigns

Callsigns held now by people who previously held KO7V.

  1. W3MCcancelled· E
    CIZEK, MICHAEL GMDgranted 2007-06-02cancelled 2014-06-14

All historical holders

Every license row we've seen with the callsign KO7V, oldest first.

  • Fial, Ronald A OR
    2023-03-07 active
  • CIZEK, MICHAEL G
    — → cancelled 1997-08-21
← Back to KO7V License history →