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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KC4OI callsign genealogy

Currently held by Brantley, Winfield 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 KC4OI's current licensee, walking backwards.

  1. W3ZDactive· E
    RICHIE, KEITH GNCgranted 2020-11-10
  2. N4QQHcancelled· E
    RICHIE, KEITH GNCgranted 2017-06-06cancelled 2020-11-10

Successor callsigns

Callsigns held now by people who previously held KC4OI.

  1. N4EVcancelled· E
    Brantley, Winfield CSCgranted 2010-09-11cancelled 2017-12-12
  2. W3ZDcancelled· E
    Brantley, Winfield CSCgranted 2004-02-18cancelled 2006-12-22

All historical holders

Every license row we've seen with the callsign KC4OI, oldest first.

  • Brantley, Winfield C TN
    2003-12-31 → cancelled 2004-02-18
  • Brantley, Winfield C SC
    2006-12-22 → cancelled 2010-09-11
← Back to KC4OI License history →