uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KO4RX callsign genealogy

Currently held by Holmes, George B

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 KO4RX's current licensee, walking backwards.

  1. KO4WRXcancelled· E
    Holmes, George BGAgranted 2021-11-30cancelled 2022-12-23
  2. KO4UIIcancelled· T
    Holmes, George BGAgranted 2021-10-27cancelled 2021-11-30

Successor callsigns

Callsigns held now by people who previously held KO4RX.

  1. N4TNTactive· A
    TAYLOR, TODD NFLgranted 2022-02-26

All historical holders

Every license row we've seen with the callsign KO4RX, oldest first.

  • TAYLOR, TODD N GA
    1992-02-11 → cancelled 2002-03-08
  • Holmes, George B GA
    2022-12-23 active
← Back to KO4RX License history →