You are welcome to add as many IPs as you need. There is a $1.50 per IP address . We also sell IPs in blocks as follows:

7 IPs (5 IPs useable) [Included in Price]
13 IPs $16.25
29 IPs $36.25
61 IPs $76.25

Every server comes with 7 IPs included in the price of which 5 our usable. These prices are paid monthly. If you buy the package of 13, you will receive 8 additional IPs along with the 5 that come with the server. If you buy the package of 29, you will receive 24 additional IPs along with the 5 that come with your server, etc. We have to report what the IPs are being used for so you will need to include an explanation upon purchase.