uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KT1J callsign genealogy

Currently held by INGWERSEN, HENRY P

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 KT1J's current licensee, walking backwards.

  1. KE1ACcancelled· E
    INGWERSEN, HENRY PVTgranted 1999-03-08cancelled 2000-06-20

Successor callsigns

Callsigns held now by people who previously held KT1J.

No current licensee on record previously held this callsign.