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

WK1T callsign genealogy

Currently held by Schwartz, Matthew E

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 WK1T's current licensee, walking backwards.

  1. N9AAKcancelled· E
    Schwartz, Matthew EDEgranted 2018-06-19cancelled 2018-11-14
  2. KF7SVXcancelled· E
    Schwartz, Matthew EPAgranted 2011-11-30cancelled 2018-06-19

Successor callsigns

Callsigns held now by people who previously held WK1T.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WK1T, oldest first.

  • SIMARD, WARREN A NH
    2010-12-28 → cancelled 2016-10-25
  • Schwartz, Matthew E DE
    2018-11-14 active