uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W9XH callsign genealogy

Currently held by OFFERDAHL, JOHN E

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 W9XH's current licensee, walking backwards.

  1. AB9WKcancelled· E
    Kirkland, William DILgranted 2007-11-17cancelled 2008-03-14
  2. AB9PTcancelled· E
    Kirkland, William DILgranted 2007-10-26cancelled 2007-11-17

Successor callsigns

Callsigns held now by people who previously held W9XH.

  1. W2DEKcancelled· E
    Kalmikoff, David ENJgranted 2006-02-22cancelled 2007-04-03

All historical holders

Every license row we've seen with the callsign W9XH, oldest first.

  • OFFERDAHL, JOHN E WI
    1999-06-02 → cancelled 1999-11-04
  • Kalmikoff, David E NJ
    2002-04-05 → cancelled 2006-02-22
  • Kirkland, William D TN
    2018-01-09 active
← Back to W9XH License history →