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

AI4DP callsign genealogy

Currently held by Harada, Koichi

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 AI4DP's current licensee, walking backwards.

  1. AB2LGcancelled· E
    Harada, KoichiVAgranted 1994-08-11cancelled 2004-01-15
  2. KA2SHOcancelled· E
    HARADA, KOICHINYgranted 1994-08-11cancelled 2000-12-28

Successor callsigns

Callsigns held now by people who previously held AI4DP.

No current licensee on record previously held this callsign.

← Back to AI4DP License history →