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

WB4J callsign genealogy

Currently held by DORSET, THOMAS H

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 WB4J's current licensee, walking backwards.

  1. N4WBJcancelled· E
    Johnson, Warner BFLgranted 2003-03-22cancelled 2009-11-24
  2. KG4WOOcancelled· T
    Johnson, Warner BFLgranted 2002-12-19cancelled 2003-03-22

Successor callsigns

Callsigns held now by people who previously held WB4J.

  1. W4THDactive· E
    DORSET, THOMAS HVAgranted 2017-08-22

All historical holders

Every license row we've seen with the callsign WB4J, oldest first.

  • DORSET, THOMAS H VA
    2006-08-08 → cancelled 2007-11-03
  • Johnson, Warner B TX
    2019-09-09 active
← Back to WB4J License history →