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

N9GTW callsign genealogy

Currently held by Clark, Gary R

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 N9GTW's current licensee, walking backwards.

  1. KC9GYGcancelled· E
    Clark, Gary RINgranted 2014-09-19cancelled 2021-08-31

Successor callsigns

Callsigns held now by people who previously held N9GTW.

  1. W9MBcancelled· E
    Klusman, James EINgranted 2006-11-10cancelled 2009-06-19

All historical holders

Every license row we've seen with the callsign N9GTW, oldest first.

  • Klusman, James E IN
    1997-04-19 → cancelled 2006-11-10
  • Clark, Gary R IN
    2021-08-31 active
← Back to N9GTW License history →