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

K6TDR callsign genealogy

Currently held by Li, Tong

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 K6TDR's current licensee, walking backwards.

  1. K7IJKcancelled· G
    Li, TongCAgranted 2019-01-01cancelled 2019-02-20
  2. N8OOOactive· G
    Beaumont, Derek RMIgranted 2024-11-30
  3. KF8CNBcancelled· G
    Beaumont, Derek RMIgranted 2024-11-05cancelled 2024-11-30

Successor callsigns

Callsigns held now by people who previously held K6TDR.

  1. N2UWUactive· G
    Li, TongWAgranted 2022-04-22
  2. W7TDRactive· A
    Lee, Douglas DCAgranted 2017-11-22

All historical holders

Every license row we've seen with the callsign K6TDR, oldest first.

  • Li, Tong NJ
    2019-02-20 → cancelled 2022-04-22
  • LEE, DOUGLAS D
    — → cancelled 1997-09-17
← Back to K6TDR License history →