Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8CSO callsign genealogy
Currently held by NORTH OTTAWA AMATEUR RADIO CLUB
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 W8CSO's current licensee, walking backwards.
- KB8YXRcancelledNUYENS, THOMAS Rcancelled 1998-05-07
Successor callsigns
Callsigns held now by people who previously held W8CSO.
No current licensee on record previously held this callsign.