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

WT7O callsign genealogy

Currently held by Thompson, William C

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 WT7O's current licensee, walking backwards.

  1. W7OLTcancelled· E
    Thompson, William CWAgranted 2019-04-23cancelled 2026-03-27
  2. WC2Tactive· E
    Tripi, James PNYgranted 2021-05-14
  3. KD2TZDcancelled· E
    Tripi, James PNYgranted 2020-06-03cancelled 2021-05-14

Successor callsigns

Callsigns held now by people who previously held WT7O.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WT7O, oldest first.

  • KIASER, EDWIN R OR
    2003-07-02 → cancelled 2012-02-07
  • STAPP, MICHAEL F WA
    2014-02-28 → cancelled 2026-03-07
  • Thompson, William C WA
    2026-03-27 active
← Back to WT7O License history →