We can assign as many IP addresses as needed per ARIN's justifications.  We must obey the rules and thus pass on the same policies to our users.  An example to a requirement of having additional IP addresses would be for SSL Secure Certificates.  We have no problem assisting customers in setting up hostname servers and additional IP addresses on servers. 

If you need multiple IP addresses on a shared hosting package, please let us know before you order your account. 

If you have already been setup and your account is active, open a support ticket with your IP address request.  Your request should include reasons for the additional IP addresses, length of expected time using the additional IP addresses, your current IP address assigned to you, the websites that will be utilizing the new IP addresses.