Instead of providing IPv4 addresses we have a system in place called Self-Healing Proxy Servers (SHP).
We issue these so that if we detect a problem with a server requiring it to be replaced, or you report a problem to us, we can easily switch out the underlying server, you keep the same hostname and you won’t need to change anything in your software.
An SHP hostname address for Parallel/Geo Proxy Servers looks like this:
shp-<customer account>-<two letter country code>-<v/d><5 digit number>.tp-ns.com
customer account: is your server account username
two letter country code: helps you identify where a server is located (for example, US, UK, DE).
v/d: Identifies whether the server is a Virtual-Dedicated or Dedicated server.
5 digit unique identifier: Is an identifier for that specific server.
You should be able to use these with no problems in your software, but if you require any assistance please open a support ticket and we’ll help you as best we can.