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

AI4FB callsign genealogy

Currently held by Doby, Ronald A

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 AI4FB's current licensee, walking backwards.

  1. KU4RJcancelled· E
    Doby, Ronald AVAgranted 1998-05-04cancelled 2004-04-13
  2. WD9DINcancelled
    cancelled 1998-05-04

Successor callsigns

Callsigns held now by people who previously held AI4FB.

  1. AE4RDactive· E
    Doby, Ronald AVAgranted 2024-02-21
← Back to AI4FB License history →