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

W3TKO callsign genealogy

Currently held by ROBERTS, JOSEPH F

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 W3TKO's current licensee, walking backwards.

  1. N5KATactive· E
    Katinsky, Steven BCAgranted 2020-03-20
  2. KN6HSZcancelled· E
    Katinsky, Steven BCAgranted 2020-02-21cancelled 2020-03-20

Successor callsigns

Callsigns held now by people who previously held W3TKO.

  1. AC3Yactive· E
    ROBERTS, JOSEPH FPAgranted 2021-09-17
← Back to W3TKO License history →