Go to https://www.xfinity.com/support/rate-card (requires XFINITY Account login) and scroll to the very end of the rate card under "Xfinity Internet'.
If the option for an additional IP address is listed there, let me know and I can escalate this to the appropriate Comcast specialist.
If it's NOT listed, then it is not available in your area.
Hello, Jlugo1185! I just responded back to your PM. Please get back to me there when you can. Thank you!
Jlugo1185, so sorry that the additional IP address is not available in your area for us to add! Please let us know if we can assist with anything else.