How many subnets are in Class A?

How many subnets are in Class A?

The two bits added to the network part from the host part can have four possible values in second octet of a Class A network , 00, 01, 10, and 11. That means, we can get four networks if we do a 2-bit subnetting on a Class A network. Ths subnet mask to use for Class A network 2-bit subnetting is 255.192. 0.0.

What are Class A IP addresses?

Class A IP addresses are used for huge networks, like those deployed by Internet Service Providers (ISPs). Class A IP addresses support up to 16 million hosts (hosts are devices that connect to a network (computers, servers, switches, routers, printers…etc.)

What is class A subnet mask?

Class A networks use a default subnet mask of 255.0. 0.0 and have 0-127 as their first octet. The address 10.52. 36.11 is a class A address. Its first octet is 10, which is between 1 and 126, inclusive.

How do you calculate class A IP address?

The class of an IP address is determined by the starting bits of the address:

1. Starts with 0 , it is a Class A.
2. Starts with 10 , it is a Class B.
3. Starts with 110 , it is a class C.
4. Starts with 1110 , it is a class D.
5. Starts with 1111 , it is a Class E.

How many networks are in Class A?

Classful addressing definition

Class	Leading bits	Number of networks
Class A	0	128 (27)
Class B	10	16,384 (214)
Class C	110	2,097,152 (221)
Class D (multicast)	1110	not defined

What are the 3 major classes of an IP network?

Currently there are three classes of TCP/IP networks. Each class uses the 32-bit IP address space differently, providing more or fewer bits for the network part of the address. These classes are class A, class B, and class C.

What is a Class C IP address?

A Class C address consists of a 24-bit network address and an 8-bit local host address. The first three bits in the network address indicate the network class, leaving 21 bits for the actual network address. In other words, the first octet of a Class C address is in the range 192 to 223.

How many IP classes are there?

How do you calculate subnet mask for Class A?

Valid subnet address: To figure out the valid subnet address, simply subtract the subnet mask from 256. For example, if you had a Class A mask of 255.240. 0.0, the equation would be 256-240=16. The number 16 is the first subnet and also your block size.

How is subnetting calculated?

Total number of subnets: Using the subnet mask 255.255. 255.248, number value 248 (11111000) indicates that 5 bits are used to identify the subnet. To find the total number of subnets available simply raise 2 to the power of 5 (2^5) and you will find that the result is 32 subnets.

How many bits is Class A IP?

IP address classes

Class	Leading bits	Total addresses in class
Class A	0	2,147,483,648 (231)
Class B	10	1,073,741,824 (230)
Class C	110	536,870,912 (229)
Class D (multicast)	1110	268,435,456 (228)