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

W1GAT callsign genealogy

Currently held by UNDERWOOD, DAVID 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 W1GAT's current licensee, walking backwards.

  1. KO4Nactive· E
    SPRINGTHORPE, DWIGHTPAgranted 2022-10-15
  2. KK4LYJcancelled· E
    SPRINGTHORPE, DWIGHTNCgranted 2012-10-09cancelled 2012-12-07

Successor callsigns

Callsigns held now by people who previously held W1GAT.

  1. W4GATactive· E
    UNDERWOOD, DAVID DTNgranted 2022-08-23
← Back to W1GAT License history →