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

W9JOK callsign genealogy

Currently held by O'Keefe, James 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 W9JOK's current licensee, walking backwards.

  1. AB9BJcancelled· E
    o Keefe, James AILgranted 2000-06-23cancelled 2001-03-27
  2. KB9WOScancelled· E
    o Keefe, James AILgranted 2000-06-23cancelled 2001-02-01

Successor callsigns

Callsigns held now by people who previously held W9JOK.

No current licensee on record previously held this callsign.

← Back to W9JOK License history →