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

W1DBO callsign genealogy

Currently held by JOHNSON, BRANDON G

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 W1DBO's current licensee, walking backwards.

  1. KE5MATactive· T
    Langbehn, MatthewTXgranted 2022-04-05
  2. KI5SWOcancelled· T
    Langbehn, MatthewTXgranted 2021-12-07cancelled 2022-04-05

Successor callsigns

Callsigns held now by people who previously held W1DBO.

No current licensee on record previously held this callsign.