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

WB4ICJ callsign genealogy

Currently held by 50TH ANNIVERSARY FIRST MANNED LUNAR LANDING GROUP

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 WB4ICJ's current licensee, walking backwards.

  1. KV4ZKcancelled
    CARLSON MEMORIAL REPEATER GROUPILgranted 2013-08-13cancelled 2018-07-03
  2. KC9ZILcancelled
    CARLSON MEMORIAL REPEATER GROUPILgranted 2013-07-18cancelled 2013-08-13

Successor callsigns

Callsigns held now by people who previously held WB4ICJ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WB4ICJ, oldest first.

  • SPACE CENTER AMATEUR RADIO SOCIETY FL
    1988-07-05 → cancelled 1999-12-02
  • 50TH ANNIVERSARY FIRST MANNED LUNAR LANDING GROUP IL
    2018-07-03 active
← Back to WB4ICJ License history →