Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SMS callsign genealogy
Currently held by Schindler, Steven M
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 W9SMS's current licensee, walking backwards.
- Schindler, Steven MINgranted 2016-06-27cancelled 2016-07-15
Successor callsigns
Callsigns held now by people who previously held W9SMS.
No current licensee on record previously held this callsign.