Quick Answer: How Many Networks Are There In Class A?

How many networks are in Class A?

Classful addressing definitionClassLeading bitsNumber of networksClass A0128 (27)Class B1016,384 (214)Class C1102,097,152 (221)Class D (multicast)1110not defined1 more row.

What are Class A networks?

Class A addresses are IP addresses that are assigned to network devices, such as computers, and include all addresses in which the first bit of the first octet is set to 0 (zero). … For Class A networks, the first octet represents a network ID that is defined in the address by a subnet mask.

What kind of networks use a Class A or Class B or Class C IP address typically?

What kind of networks use a Class A or Class B or Class C IP address typically? Class A IP address is used for a network with large number of hosts. Class C IP address is used for a network with less number of hosts. Class B IP address is used for a network with medium number of hosts.

What is a Class A network used for?

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 in IP address?

Class-a-ip-address definitions 0.1 to 126.255. 255.254. Class A addresses are identified by a beginning 0 bit. The next 7 bits identify the specific network, with 128 (2 7 ) theoretically possible. … Class A addresses are intended for very large networks supporting a great number of host computers.

How do you know what class a network is?

Only 1-126 can be used to identify Class A networks because 0 and 127 are reserved. To find the valid host addresses in a Class A network, you must find the network and broadcast address in the IP range. Since the Class A address only uses the first byte to identify the network, the last three octets are host bits.

What is a Class A address?

Class A IP addresses, where the 1st bit is 0, encompass the range of 0.0. 0.0 to 127.255. 255.255. This class is for large networks and has 8 bits for network and 24 bits for hosts. Class B IP addresses, where the 1st two bits are 10, are in the range of 128.0.

How many IP addresses does a Class A network have?

IP address classesClassLeading bitsNumber of networksClass A0128 (27)Class B1016,384 (214)Class C1102,097,152 (221)Class D (multicast)1110not defined1 more row

How many hosts can a Class A network have?

Table 2-1 IP Addresses Available to Internet HostsAddress ClassFirst Octet RangeNumber of Hosts Per NetworkClass A0 to 12616,777,214Class B128 to 19165,534Class C192 to 223254Aug 27, 2004

What is a Class A subnet?

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.

What are the first 3 octets of an IP address?

The first 24 bits (the first three octets) identify the network and the remaining 8 bits indicate the host within the network. An example of a Class C IP address is 200.168. 212.226 where “200.168. 212” identifies the network and “226” identifies the host on that network.

What is the difference between Class A Class B and Class C networks?

If the first number is between 0 and 127 inclusive, the address is class A. If the first number is between 128 and 191 inclusive, the address is class B. If the first number is between 192 and 223 inclusive, the address is class C. If the first number is between 224 and 239 inclusive, the address is class D.

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….128.0 subnet:Subnet: 10.0. 128.0.Broadcast: 10.0. 255.255.Valid host range: 10.0. 128.1 through 10.0. 255.254.