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

KK4TW callsign genealogy

Currently held by CULLIPHER SR, FLOYD M

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 KK4TW's current licensee, walking backwards.

  1. K6CEFcancelled· E
    RICKER, JAMES MTNgranted 2014-02-15cancelled 2020-12-18
  2. ND0Dactive· E
    Van Der Valk, Suzanne CIAgranted 2016-09-06
  3. KC0IXIcancelled· E
    Van Der Valk, Suzanne CIAgranted 2000-09-28cancelled 2006-10-11

Successor callsigns

Callsigns held now by people who previously held KK4TW.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KK4TW, oldest first.

  • CULLIPHER SR, FLOYD M FL
    2006-10-27 → cancelled 2019-02-12
  • RICKER, JAMES M TN
    2020-12-18 active
← Back to KK4TW License history →