Private IP addresses are more safer

Some ranges of IP addresses are reserved and not assigned to any computers connected directly to the Internet. These addresses are allocated for use only on private networks and between computers that aren’t connected to the Internet. These private IP address ranges are 10.0.0.0–10.255.255.255, 172.16.0.0–172.31.255.255 and 192.168.0.0–192.168.255.255. Using addresses from these ranges for the computers within an organization’s networks means that you don’t have to allocate any of the increasingly sparse regular addresses for all computers. You also increase security because a hacker can never send network packets directly from the Internet to a computer that’s inside a network that uses private addresses.