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

KG9OM callsign genealogy

Currently held by SNODGRASS, DONALD J

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 KG9OM's current licensee, walking backwards.

  1. K4QKYactive· A
    SNODGRASS, DONALD JALgranted 2018-10-12
  2. KC5YRcancelled· A
    SNODGRASS, DONALD JMSgranted 2017-04-15cancelled 2018-10-12

Successor callsigns

Callsigns held now by people who previously held KG9OM.

  1. K9XBactive· E
    DURFEE III, ROBERT FWIgranted 2021-12-06
  2. K4QKYcancelled· A
    SNODGRASS, DONALD JMSgranted 2013-11-09cancelled 2017-04-15

All historical holders

Every license row we've seen with the callsign KG9OM, oldest first.

  • Durfee III, Robert F WI
    1998-09-22 → cancelled 2002-03-06
  • SNODGRASS, DONALD J IL
    2007-11-09 → cancelled 2013-11-09
← Back to KG9OM License history →