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

WN9Z callsign genealogy

Currently held by MC KEE, TIMOTHY R

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 WN9Z's current licensee, walking backwards.

  1. KO4BAQcancelled· E
    MC KEE, TIMOTHY RSCgranted 2020-01-16cancelled 2020-03-13

Successor callsigns

Callsigns held now by people who previously held WN9Z.

  1. K6BOScancelled· E
    BOSWORTH, CRAIG SFLgranted 2018-02-21cancelled 2022-12-16

All historical holders

Every license row we've seen with the callsign WN9Z, oldest first.

  • TERPSTRA, RICHARD L IN
    2009-11-02 → cancelled 2016-01-11
  • BOSWORTH, CRAIG S CA
    2018-01-30 → cancelled 2018-02-21
  • MC KEE, TIMOTHY R SC
    2020-03-13 active
← Back to WN9Z License history →