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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KO5TI callsign genealogy

Currently held by Hennighausen, Konstantinos

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 KO5TI's current licensee, walking backwards.

  1. AC1GJcancelled· E
    Hennighausen, KonstantinosMAgranted 2018-10-17cancelled 2018-12-04
  2. KC1KJUcancelled· E
    Hennighausen, KonstantinosMAgranted 2018-10-17cancelled 2018-11-13

Successor callsigns

Callsigns held now by people who previously held KO5TI.

  1. WA1Bactive· E
    Hennighausen, KonstantinosMAgranted 2021-02-23
← Back to KO5TI License history →