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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N9KOJ callsign genealogy

Currently held by CHOI, ROBERT

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 N9KOJ's current licensee, walking backwards.

  1. KB9EJT
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N9KOJ.

No current licensee on record previously held this callsign.

← Back to N9KOJ License history →