Which one of the following prefixes matches 28.53.22.211?
Which one of the following prefixes matches both 34.19.252.242 and 76.177.169.177?
Which one of the following address prefixes contains 223.98.232.36/30?
Enter an address prefix that matches 86.68.218.3:
Enter an address that matches 231.69.43.48/28: