Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WN7SM callsign genealogy
Currently held by Martinenko, Stephen 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 WN7SM's current licensee, walking backwards.
- Martinenko, Stephen GORgranted 2017-01-23cancelled 2017-02-14
Successor callsigns
Callsigns held now by people who previously held WN7SM.
No current licensee on record previously held this callsign.