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

W4YDD callsign genealogy

Currently held by Thomas, William D

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 W4YDD's current licensee, walking backwards.

  1. KC4YDDcancelled· G
    Thomas, William DTNgranted 2018-09-12cancelled 2020-03-21
  2. KN4OQPcancelled· T
    Thomas, William DTNgranted 2018-08-21cancelled 2018-09-12

Successor callsigns

Callsigns held now by people who previously held W4YDD.

  1. AA4YDcancelled· E
    Thomas, William DTNgranted 2024-02-23cancelled 2024-05-18

All historical holders

Every license row we've seen with the callsign W4YDD, oldest first.

  • NANCE, PAUL M SC
    1993-10-05 → cancelled 2005-10-06
  • Thomas, William D TN
    2020-03-21 → cancelled 2024-02-23
← Back to W4YDD License history →