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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KC4IOL callsign genealogy

Currently held by WITHERS, JEFFREY 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 KC4IOL's current licensee, walking backwards.

  1. NC0Cactive· E
    RUSSO, JEAN M BERNARDNCgranted 2023-10-11
  2. KK4PICcancelled· E
    RUSSO, JEAN MNCgranted 2013-03-11cancelled 2013-10-01

Successor callsigns

Callsigns held now by people who previously held KC4IOL.

  1. NC0Ccancelled· E
    Withers, Jeffrey RKYgranted 2009-06-13cancelled 2011-09-03

All historical holders

Every license row we've seen with the callsign KC4IOL, oldest first.

  • WITHERS, JEFFREY R KY
    1989-01-17 → cancelled 2001-01-18
  • Withers, Jeffrey R MO
    2005-02-15 → cancelled 2009-06-13
  • Withers, Jeffrey R KY
    2022-08-24 active
← Back to KC4IOL License history →