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

KJ4UJU callsign genealogy

Currently held by TOMPKINS, RICHARD 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 KJ4UJU's current licensee, walking backwards.

The current licensee has not held any other callsign on record.

Successor callsigns

Callsigns held now by people who previously held KJ4UJU.

  1. WD4JKGactive· E
    TOMPKINS 293, RICHARD ESCgranted 2020-03-13