Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9KMS callsign genealogy
Currently held by AARON, JAMES A
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 W9KMS's current licensee, walking backwards.
- Seifert, Steven SINgranted 2017-06-22cancelled 2018-05-18
Successor callsigns
Callsigns held now by people who previously held W9KMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9KMS, oldest first.
- AARON, JAMES A IL1996-06-28 → cancelled 2008-07-01
- Seifert, Steven S IN2018-05-18 active