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

KF4MOM callsign genealogy

Currently held by RITCHIE, RONALD D

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 KF4MOM's current licensee, walking backwards.

  1. N4MOMactive· G
    Sorensen, Barbara CALgranted 2020-10-02
  2. KJ4VXVcancelled· T
    Sorensen, Barbara CALgranted 2010-06-18cancelled 2010-09-10

Successor callsigns

Callsigns held now by people who previously held KF4MOM.

  1. N4MOMcancelled· A
    RITCHIE, RONALD DKYgranted 2001-08-10cancelled 2008-08-22

All historical holders

Every license row we've seen with the callsign KF4MOM, oldest first.

  • RITCHIE, RONALD D KY
    1999-02-24 → cancelled 2001-08-10
  • RITCHIE, RONALD D KY
    2018-09-19 active
← Back to KF4MOM License history →