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

KV4U callsign genealogy

Currently held by Giallo II, Joseph F

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 KV4U's current licensee, walking backwards.

  1. AF4XScancelled· E
    Giallo Ii, Joseph FNCgranted 2017-11-07cancelled 2024-01-17
  2. KA6BKKcancelled· A
    GIALLO II, JOSEPH FFLgranted 1997-12-08cancelled 2000-06-08

Successor callsigns

Callsigns held now by people who previously held KV4U.

  1. K1ZWactive· E
    Stowell, Larry CNCgranted 2021-12-28
  2. K0CUactive· E
    FROEHLICH, CARL TVAgranted 2019-11-13

All historical holders

Every license row we've seen with the callsign KV4U, oldest first.

  • FROEHLICH, CARL T VA
    2018-03-20 → cancelled 2019-11-13
  • Stowell, Larry C NC
    2021-12-03 → cancelled 2021-12-28
  • Giallo II, Joseph F NC
    2024-01-17 active
← Back to KV4U License history →