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

W7HO callsign genealogy

Currently held by Schlitzkus, Ronnie W

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 W7HO's current licensee, walking backwards.

  1. KK7UUcancelled· E
    Schlitzkus, Ronnie WORgranted 2000-12-16cancelled 2007-02-17
  2. WB6EVQcancelled· A
    SCHLITZKUS, RONNIE WORgranted 1996-02-07cancelled 1999-11-16

Successor callsigns

Callsigns held now by people who previously held W7HO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W7HO, oldest first.

  • HEINZ III, O R NV
    1996-09-13 → cancelled 2005-01-29
  • Schlitzkus, Ronnie W OR
    2016-12-08 active
← Back to W7HO License history →