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

K2ZU callsign genealogy

Currently held by MARTIN, DAVID T

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 K2ZU's current licensee, walking backwards.

  1. NB7Nactive· E
    Wallis, Bryan PORgranted 2020-06-30
  2. AB7BWcancelled· E
    Wallis, Bryan PORgranted 2019-06-18cancelled 2020-06-30
  3. W8RYAcancelled· E
    Wallis, Bryan PORgranted 2018-03-20cancelled 2019-06-18
  4. KI7URScancelled· T
    Wallis, Bryan PORgranted 2018-02-27cancelled 2018-03-20

Successor callsigns

Callsigns held now by people who previously held K2ZU.

  1. NB7Ncancelled· E
    MARTIN, DAVID TWAgranted 2002-03-06cancelled 2002-07-06
  2. W2ZUcancelled· E
    JEFFREY JR, JOHN JNYgranted 1997-03-27cancelled 2001-11-24

All historical holders

Every license row we've seen with the callsign K2ZU, oldest first.

  • MARTIN, DAVID T WA
    2001-01-20 → cancelled 2002-03-06
  • MARTIN, DAVID T WA
    2023-04-14 active
← Back to K2ZU License history →