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

K4OKA callsign genealogy

Currently held by GERRINGER, RANDY J

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 K4OKA's current licensee, walking backwards.

  1. N4GKScancelled· E
    Thrower, Casey RALgranted 2021-07-12cancelled 2025-06-14
  2. AF4CQcancelled· E
    Thrower, Casey RALgranted 2021-03-30cancelled 2021-07-12

Successor callsigns

Callsigns held now by people who previously held K4OKA.

  1. AF4CQcancelled· E
    Thrower, Casey RALgranted 2021-03-30cancelled 2021-07-12
  2. KM4AHactive· A
    GERRINGER, RANDY JNCgranted 2017-10-31

All historical holders

Every license row we've seen with the callsign K4OKA, oldest first.

  • ABERNETHY, JOHN A NC
    1996-08-01 → cancelled 2008-08-02
  • GERRINGER, RANDY J NC
    2017-03-17 → cancelled 2017-10-31
  • Thrower, Casey R AL
    2021-02-09 → cancelled 2021-03-30
← Back to K4OKA License history →