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

N4UK callsign genealogy

Currently held by RAMIREZ, KENNETH

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 N4UK's current licensee, walking backwards.

  1. KK4CAMcancelled· E
    Vetter Jr, William EFLgranted 2021-03-16cancelled 2021-04-02

Successor callsigns

Callsigns held now by people who previously held N4UK.

  1. KP4XScancelled· E
    RAMIREZ, KENNETHPRgranted 2019-03-12cancelled 2019-05-07
  2. W0MZcancelled· E
    RAMIREZ, KENNETHCOgranted 2007-12-18cancelled 2009-03-31

All historical holders

Every license row we've seen with the callsign N4UK, oldest first.

  • RAMIREZ, KENNETH CO
    2006-08-08 → cancelled 2007-12-18
  • RAMIREZ, KENNETH PR
    2019-02-01 → cancelled 2019-03-12
  • Vetter Jr, William E FL
    2021-04-02 active
← Back to N4UK License history →