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

KF8IV callsign genealogy

Currently held by FERDEN, FRANCIS C

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 KF8IV's current licensee, walking backwards.

  1. KE8FJQcancelled· E
    HARTNETT, RYAN POHgranted 2016-11-04cancelled 2016-12-23

Successor callsigns

Callsigns held now by people who previously held KF8IV.

  1. W8RRWexpired· A
    FERDEN, FRANCIS CMIgranted 2000-07-29cancelled 2012-07-31

All historical holders

Every license row we've seen with the callsign KF8IV, oldest first.

  • FERDEN, FRANCIS C MI
    1990-08-21 → cancelled 2000-07-29
  • HARTNETT, RYAN P TX
    2016-12-23 active
← Back to KF8IV License history →