Well, this is the beauty of what cPanel does best, that is:
Virtual Domain Hosting.
Most hosts I would guess, don't give every account it's own Dedicated IP. But you could in the way mentioned previously, or, you can use the tools cPanel provides to give accounts you wish, their own Dedicated IPs, here:
WHM > Account Functions > Change Site's IP Address
(which BTW, I believe was the answer you were originally looking for. sorry for taking you somewhere else.)