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

KF7TXO callsign genealogy

Currently held by Johnson, Kenneth H

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 KF7TXO'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 KF7TXO.

  1. AE7SXcancelled· E
    Johnson, Kenneth HAZgranted 2022-01-12cancelled 2025-04-04