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

KI4D callsign genealogy

Currently held by Tombaugh Jr, John 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 KI4D's current licensee, walking backwards.

  1. KI4MAGcancelled· E
    Lewis Sr, Donovan JVAgranted 2005-10-11cancelled 2006-09-15

Successor callsigns

Callsigns held now by people who previously held KI4D.

  1. W1YPactive· E
    GAYLER, ANTHONY DGAgranted 2018-10-09
  2. N3MOcancelled· E
    TOMBAUGH JR, JOHN RNYgranted 2004-08-24cancelled 2010-07-27

All historical holders

Every license row we've seen with the callsign KI4D, oldest first.

  • Tombaugh Jr, John R PA
    2001-02-10 → cancelled 2004-08-24
  • LEWIS SR, DONOVAN J VA
    2026-08-05 active
  • GAYLER, ANTHONY D
    — → cancelled 1999-01-07
← Back to KI4D License history →