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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KT4RFU callsign genealogy

Currently held by SCHARBARTH, ANDREW K

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 KT4RFU's current licensee, walking backwards.

  1. KD9LQFcancelled· G
    SCHARBARTH, ANDREW KWIgranted 2018-08-24cancelled 2018-09-11

Successor callsigns

Callsigns held now by people who previously held KT4RFU.

  1. KD9UQNcancelled· E
    SCHARBARTH, ANDREW KWIgranted 2018-09-11cancelled 2022-05-20
← Back to KT4RFU License history →