What address class does Tom's IP address 192.10.10.10 belong to?

Tom's IP address 192.10.10.10 belongs to Class C.

IP addresses are classified into different classes based on their leading octet (the first number when the address is broken into four parts). For Class C addresses, the leading octet falls within the range of 192 to 223. Since 192 is the leading number in Tom's IP address, it clearly fits within this range, categorizing it as a Class C address.

Class C addresses are typically used for smaller networks, allowing for a maximum of 254 hosts (with 2^8 - 2 = 256 - 2 due to network and broadcast addresses being reserved). This class is particularly popular among small to medium-sized organizations or individual use cases, where a limited number of IP addresses are needed.

In contrast, Class A addresses start with any number from 1 to 126, and they are designed for very large networks, while Class B addresses range from 128 to 191, intended for moderately sized networks. Class D is reserved for multicast addresses and does not fall under the standard addressing for typical networks. Thus, knowing the range of each class helps in properly identifying the class associated with a given IP address.