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

K0UI callsign genealogy

Currently held by COOK, DOUGLAS 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 K0UI's current licensee, walking backwards.

  1. AF4BO
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held K0UI.

No current licensee on record previously held this callsign.

← Back to K0UI License history →