You can actually find it yourself by google, isn't it? But forget it, this is what I found using a tool called findsubdomains.
omail.bitcointalk.org
beta.bitcointalk.org
ip.bitcointalk.org
staging.bitcointalk.org
dev.bitcointalk.org
payments.bitcointalk.org
bitcointalk.org
images.bitcointalk.org
www.bitcointalk.org
www.ip.bitcointalk.org