What class is the address 170.19.82.45?

To determine the class of the IP address 170.19.82.45, we need to look at the first octet of the address, which is 170. IP addresses are categorized into different classes based on the value of the first octet.

• Class A addresses range from 1.0.0.0 to 126.255.255.255.

• Class B addresses range from 128.0.0.0 to 191.255.255.255.

• Class C addresses range from 192.0.0.0 to 223.255.255.255.

• Class D addresses range from 224.0.0.0 to 239.255.255.255, which are used for multicast groups.

Since the first octet of 170 falls within the range of Class B (128 to 191), it confirms that the address 170.19.82.45 belongs to Class B. Class B addresses are typically used for medium to large-sized networks, allowing for a greater number of hosts than Class A but fewer than Class C. Understanding IP address classes is essential for tasks like network design and addressing schemes.