The servers are available under many IPs. Especially the "Stevie" one. If you want the IP under which is available your website on this server then Krydos gave you the answer. Eventually you can also just check the DNS entries for your domain names hosted in here. If you need this for online payments then I believe you want either the IP of your website (to find it out read above) OR IP from which the outgoing connections go through and in a case of the server "Stevie" it's 65.19.143.2 and in a case of the server "Johnny" it's 64.62.211.131 - at least these are my results when I have just tried the outgoing connections with using cURL from the accounts on these servers. I don't know anything about online payments and procedures and techniques used, so unfortunatelly I can not give you the answer if you need either one or the other IP.