< 1 min read we have, for now at least, shut down our San Jose monitoring centre (it only supported iPv4) and added in a new monitoring centre in Las Vegas.  We now have six monitoring centres in the United States, all save for our second server in New York are fully iPv6 supported. Details of their IPs, so that you can white-list them, are provided below. You’ll find details of all our monitoring centers in the Knowledge Base.