What is Class A in IP address?

Published by Charlie Davidson on

What is Class A in IP address?

IP addresses are broken into different classes. 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.)

How do you use class A IP address?

Class A Network This IP address class is used when there are a large number of hosts. In a Class A type of network, the first 8 bits (also called the first octet) identify the network, and the remaining have 24 bits for the host into that network. An example of a Class A address is 102.168. 212.226.

What is a Class A subnet?

A Class A IP address reserves 8 bits for a network with 24 bits dedicated to hosts. Its IP address spans from 0 to 126. The Class A subnet mask is 255.0. Network addresses for these range from 128 to 191.

Is Class A IP address private or public?

Address ranges to be use by private networks are: Class A: 10.0. 0.0 to 10.255. 255.255.

How many IP addresses does a Class A network have?

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)

How many networks are there in Class A?

IP address classes

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

How do I subnet ipv4 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 first available subnet is:

  1. Subnet: 10.0. 0.0.
  2. Broadcast: 10.0. 127.255.
  3. Valid host range: 10.0. 0.1 through 10.0. 127.254.

Is 172 a private IP address?

Note that only a portion of the “172” and the “192” address ranges are designated for private use. The remaining addresses are considered “public,” and thus are routable on the global Internet. Use caution when setting filters to exclude these private address ranges.

How do you subnet a Class A?

Class A networks use a default subnet mask of 255.0. 0.0 and have 0-127 as their first octet.

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