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

W4MOO callsign genealogy

Currently held by ANDERSON, JOE R

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 W4MOO's current licensee, walking backwards.

  1. KC4VPEcancelled· G
    ANDERSON, JOE RTNgranted 2020-11-03cancelled 2020-11-24
  2. KC4OQX
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held W4MOO.

  1. K4WJJcancelled· E
    JOHNSON, WILLIAM JFLgranted 2009-02-10cancelled 2009-06-02
  2. W4WUcancelled· E
    JOHNSON, WILLIAM JFLgranted 2003-06-21cancelled 2006-03-07

All historical holders

Every license row we've seen with the callsign W4MOO, oldest first.

  • JOHNSON, WILLIAM J FL
    2002-08-02 → cancelled 2003-06-21
  • JOHNSON, WILLIAM J FL
    2006-03-07 → cancelled 2009-02-10
  • ANDERSON, JOE R TN
    2020-11-24 active
← Back to W4MOO License history →