Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W9MCU callsign genealogy
Currently held by ST ONGE, STANLEY 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 W9MCU's current licensee, walking backwards.
- St Onge, Steven JWIgranted 2008-06-13cancelled 2009-06-05
Successor callsigns
Callsigns held now by people who previously held W9MCU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9MCU, oldest first.
- ST ONGE, STANLEY J WI1996-02-05 → cancelled 2008-02-06
- St Onge, Steven J WI2019-03-19 → cancelled 2025-01-10