IPv4 + Port Keyspace

IP:port socket address combined keyspace
Bits
32 + 16 = 48 bits
Count
248 = 281,474,976,710,656

IPv4

Address class
Keyspace
232 possibilities • integers 0 to 4,294,967,295
Hex
Binary

Port

Keyspace
216 possibilities • ports 0 to 65,535
Port range label
Hex
Binary