As far as I'm aware, Kaspersky were the first company to discover it and they've written some great blogs on it, with excellent detail on the registry keys, files etc that are affected but there isn't much information on the IP addresses of CC servers. Here's their most recent blog detailed the registry keys etc -
and in a previous blog, they talked about the communications to the C&C servers -
"Recorded data is sent to the C&C through a covert SSL channel, on a regular schedule. We are still analyzing this; more information will be available on our website soon.
so I think it's probably best to keep watching Kaspersky's blog as they appear to be further along in analysing Flame (although that can obviously change).
According to this post (http://blog.cuckoobox.org/2012/05/29/cuckoo-in-flame/), the domains/ips are being actively sinkholed, which possibly explains why there's nothing been publicised as of yet.
Update: Looks like Kaspersky have identified information on the C&C servers - http://www.securelist.com/en/blog/208193540/The_Roof_Is_on_Fire_Tackling_Flames_C_C_Servers.