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

KR4I callsign genealogy

Currently held by WHITEHURST, ROGER E

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 KR4I's current licensee, walking backwards.

  1. K4FMIcancelled· E
    RAY, CHRISTOPHER ENCgranted 2020-10-07cancelled 2023-06-22
  2. KG4FMIcancelled· G
    RAY, CHRISTOPHER ENCgranted 1999-11-30cancelled 2000-12-27

Successor callsigns

Callsigns held now by people who previously held KR4I.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KR4I, oldest first.

  • TOPMILLER, CHARLES H FL
    1989-05-02 → cancelled 2001-05-03
  • WHITEHURST, ROGER E GA
    2011-07-19 → cancelled 2023-05-31
  • RAY, CHRISTOPHER E NC
    2023-06-22 active
← Back to KR4I License history →