uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W4ZTA callsign genealogy

Currently held by HOLLAND, WILLIAM O

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 W4ZTA's current licensee, walking backwards.

  1. W4LPMcancelled· G
    Kahan, MitchFLgranted 2022-04-15cancelled 2022-06-07
  2. W4KTTcancelled· G
    Kahan, MitchFLgranted 2022-03-26cancelled 2022-04-15
  3. KT6TTTcancelled· G
    Kahan, MitchFLgranted 2022-03-04cancelled 2022-03-26
  4. KO4WJGcancelled· G
    Kahan, MitchFLgranted 2022-02-02cancelled 2022-03-04

Successor callsigns

Callsigns held now by people who previously held W4ZTA.

  1. W3NHactive· E
    HOLLAND, WILLIAM OALgranted 2020-03-21

All historical holders

Every license row we've seen with the callsign W4ZTA, oldest first.

  • HOLLAND, WILLIAM O AL
    1998-11-12 → cancelled 2000-06-06
  • Kahan, Mitch FL
    2022-06-07 active
← Back to W4ZTA License history →