Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7OSN callsign genealogy
Currently held by MARGESON, ERIC C
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 W7OSN's current licensee, walking backwards.
- MARGESON, ERIC CORgranted 1998-07-16cancelled 2000-04-25
Successor callsigns
Callsigns held now by people who previously held W7OSN.
No current licensee on record previously held this callsign.