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

K4KOZ callsign genealogy

Currently held by BASCOMB, FRANK C

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 K4KOZ's current licensee, walking backwards.

  1. KK4JZLcancelled· G
    Kozdron, Jeffrey LFLgranted 2010-12-01cancelled 2012-07-06
  2. KJ4ZKPcancelled· G
    Kozdron, Jeffrey LFLgranted 2010-12-01cancelled 2012-06-15

Successor callsigns

Callsigns held now by people who previously held K4KOZ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K4KOZ, oldest first.

  • BASCOMB, FRANK C FL
    1994-04-05 → cancelled 2006-04-06
  • Kozdron, Jeffrey L FL
    2022-06-14 active
← Back to K4KOZ License history →