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

K4IC callsign genealogy

Currently held by Miller, 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 K4IC's current licensee, walking backwards.

  1. N4ILKcancelled· E
    WILLIAMS, MICHAEL GNCgranted 2008-12-02cancelled 2016-01-16

Successor callsigns

Callsigns held now by people who previously held K4IC.

  1. K4FLcancelled· E
    WILLIAMSON JR, O GORDONFLgranted 2013-12-28cancelled 2014-07-18
  2. K4FLcancelled· E
    WILLIAMSON JR, O GORDONFLgranted 2010-07-30cancelled 2012-01-04

All historical holders

Every license row we've seen with the callsign K4IC, oldest first.

  • Miller, Thomas H VA
    2005-09-02 → cancelled 2007-11-27
  • WILLIAMSON JR, O GORDON FL
    2009-12-18 → cancelled 2010-07-30
  • WILLIAMSON JR, O GORDON FL
    2012-08-17 → cancelled 2013-12-28
  • WILLIAMS, MICHAEL G NC
    2025-11-29 active
← Back to K4IC License history →