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

KI0SZ callsign genealogy

Currently held by HARRISON, ROBERT M

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 KI0SZ's current licensee, walking backwards.

  1. KI0STcancelled· A
    HARRISON, ROBERT MKYgranted 2002-11-21cancelled 2007-12-13
  2. AH6RScancelled· A
    HARRISON, ROBERT MIAgranted 2002-11-21cancelled 2006-02-07
  3. AL7RQcancelled· A
    HARRISON, ROBERT MHIgranted 2002-11-21cancelled 2004-01-13
  4. KF8ZBcancelled· A
    HARRISON, ROBERT MOHgranted 1993-02-16cancelled 2000-07-07
  5. N8PSMcancelled· G
    MICHAELSON, PAUL Scancelled 1999-02-03

Successor callsigns

Callsigns held now by people who previously held KI0SZ.

  1. KV4IFactive· A
    HARRISON, ROBERT MKYgranted 2023-04-04
← Back to KI0SZ License history →