# Quick answer: How do you find first and last IP address?

As many you asked, how do I find the first IP address? The first address of a network is a network address. It is obtained by ANDing the mask with the IP address (Both in binary form). Another method is to set the last 32-n bits of the IP address to 0.

Also, what is the first and last IP? Internet Corporation for Assigned Names and Numbers is responsible for assigning IP addresses. When calculating hosts’ IP addresses, 2 IP addresses are decreased because they cannot be assigned to hosts, i.e. the first IP of a network is network number and the last IP is reserved for Broadcast IP.

You asked, how do you find first and last address of the block in which IP belongs? At 8 bits per byte you get 24 for the first three bytes, and two for the last. It means your last byte will be of the form (nnhh hhhh), where n is a subnet bit and h a host bit. 16 is indeed (0001 0000), so you get (00xx xxxx). Thus the network address is (00|00 0000) -> .

In this regard, how do I find my first host address? First Host Address: The first host address is always the subnet address with the last octet incremented by 1. So, in our class C example, subnet #3’s base address is 211.77. 20.96. The first host address in subnet #3 is thus 211.77.

## What is the first IP?

The original version of the Internet Protocol that was first deployed in 1983 in the ARPANET, the predecessor of the Internet, is Internet Protocol version 4 (IPv4).

## What is the first address of a block of classless addresses?

An organization is granted a block of classless addresses with the starting address 199.34.

1. In the Windows search fields, type cmd, to open command prompt.
2. Press Enter.
3. Type ipconfig/all press Enter.

## How do I find the host number of an IP address?

In simple words, the Number of hosts in any network can be calculated with the formula = 2x– 2, where x is the number of host ID bits in the IP address.

## How do I find my IP address class?

You can identify the class of an IP address by looking at its first octet. Following are the ranges of Class A, B, and C Internet addresses, each with an example address: Class A networks use a default subnet mask of 255.0. 0.0 and have 0-127 as their first octet.

## How do I find my host ID and network ID?

A host ID can be found simply by ANDing the IP address in binary form with its respective default subnet mask (in binary form). The other fragment of an IP address is the network ID, which identifies the network to which the host belongs. For Example, In the above Image, the IP address of host C is 198.162.

## What is network ID in IP address?

A network ID, in the world of Transmission Control Protocol/Internet Protocol or TCP/IP, is the portion of the TCP/IP address which identifies the network for a given host, usually composed of three octets with dotted decimal representation.

## What is subnet ID and host ID?

The second part of a TCP/IP address that defines the subnetwork in which the device resides. The subnet ID number is shared with the host ID. See subnet mask and subnet mask tables.

## How is classless IP address calculated?

1. Using Equation:
2. Ex1: 192.168.1.65/28: 65/16 = 4.0625 Network ID: 4*16 = 64 (192.168.1.64) Broadcast ID: 64+(16-1) = 79 (192.168.1.79) First Host ID: 64 + 1 = 65 (192.168.1.65) Last Host ID: 79 – 1 = 78 (192.168.1.78)

## How many versions of IP are there?

There are two versions of IP in use today, IPv4 and IPv6. The original IPv4 protocol is still used today on both the internet, and many corporate networks.

## How do I find my subnet mask and network ID and host ID?

To calculate the Network ID of a subnet, take an IP address within the subnet and run the AND operator (on a calculator) on the subnet mask. Using a calculator to find the Network ID is the easy way as you do not have to convert it into binary form. Once the Network ID is found, calculating the Broadcast ID is easy.