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

N6OJU callsign genealogy

Currently held by FELDSTEIN, JEFFREY B

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 N6OJU's current licensee, walking backwards.

  1. KB6NWE
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N6OJU.

  1. K9BZactive· E
    FELDSTEIN, JEFFREY BUTgranted 2021-02-02