If you have a computer with the IPv4 address 163.208.199.8. What class is this address?

The IPv4 address 163.208.199.8 belongs to the class B address range.

Class A - 1.0.0.0 - 126.0.0.0

Class B - 128.0.0.0 - 191.255.0.0

Class C - 192.0.0.0 - 233.255.255.0