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

W9SWM callsign genealogy

Currently held by Salmon, William G

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 W9SWM's current licensee, walking backwards.

  1. KD9GILcancelled· T
    Salmon, William GWIgranted 2016-05-23cancelled 2018-05-30

Successor callsigns

Callsigns held now by people who previously held W9SWM.

  1. K9ADJactive· T
    Salmon, William GWIgranted 2021-09-11
  2. KC9REXactive· G
    Mosier, James SINgranted 2019-12-03

All historical holders

Every license row we've seen with the callsign W9SWM, oldest first.

  • MOSIER, LAURENS S OH
    1994-10-31 → cancelled 2006-11-01
  • Mosier, James S IN
    2010-02-02 → cancelled 2010-02-23
  • Salmon, William G WI
    2018-05-30 → cancelled 2021-09-11
← Back to W9SWM License history →