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

KF0K callsign genealogy

Currently held by Christie Jr, James 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 KF0K's current licensee, walking backwards.

  1. KD0JCcancelled· E
    Christie Jr, James RNEgranted 2014-06-24cancelled 2014-07-29
  2. AD0JIcancelled· E
    Christie Jr, James RNEgranted 2014-02-07cancelled 2014-06-24
  3. KD0YZZcancelled· E
    Christie Jr, James RNEgranted 2014-02-07cancelled 2014-06-04

Successor callsigns

Callsigns held now by people who previously held KF0K.

  1. W0INScancelled· E
    HARSHBARGER, THOMAS WMOgranted 2012-07-10cancelled 2013-05-21

All historical holders

Every license row we've seen with the callsign KF0K, oldest first.

  • HARSHBARGER, THOMAS W FL
    2010-01-15 → cancelled 2012-07-10
  • Christie Jr, James R NE
    2024-10-18 active
← Back to KF0K License history →