Class B, if you are referring to classful addressing schemes.
The difference between classful IP addressing and classless IP addressing is in selecting the number of bits used for the network ID portion of an IP address. In classful IP addressing, the network ID portion can take only the predefined number of bits 8, 16, or 24. In classless addressing, any number of bits can be assigned to the network ID.
The IP address is of class C.
security
Class C
In classful addressing, the class of an IP address can be determined by the value in the first octet: 0 - 126 class A 128 - 191 class B 192 - 223 class C
The first octet determines the class, so-0-127 is Class 1128-191 is Class 2192-223 is Class 3So the IP address 203.12.176.55 is a Class 3 address.
If the first byte is in the range 192-223, that's a class C address.
For multicast, ip addresses in the range of 224.0.0.0 - 239.255.255.255 are used.
Static IP
Class D
No, not all Class B addresses are APIPA addresses. APIPA (Automatic Private IP Addressing) specifically refers to the range of IP addresses from 169.254.0.1 to 169.254.255.254, which is used for automatic private addressing when a device cannot obtain an IP address from a DHCP server. Class B addresses encompass a broader range from 128.0.0.0 to 191.255.255.255, which includes both public and private addresses, but only a small subset of APIPA addresses.