Not the DS servers, those used GameSpy, but the Wii servers are still up! They seem to keep all Call of Duty servers up, even if there's a lot of issues with the old servers. The Wii versions won't let you connect without a cheat code, but the PS3 versions of Call of Duty won't even let you connect unless you used your account on the servers before 2019. Not sure what's going on there, but at least new users can still access the Wii servers if they can install the update as a WAD (because Wii Shop Channel shut down) and use the cheat to get on the servers.