IP find IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses by IP find IPv4 ranges.


NetworkFirst HostLast Host
1.121.1.0/24 1.121.1.0 1.121.1.255
1.121.2.0/24 1.121.2.0 1.121.2.255
1.121.3.0/24 1.121.3.0 1.121.3.255
1.121.4.0/24 1.121.4.0 1.121.4.255
1.121.5.0/24 1.121.5.0 1.121.5.255
1.121.6.0/24 1.121.6.0 1.121.6.255
1.121.7.0/24 1.121.7.0 1.121.7.255
1.121.8.0/24 1.121.8.0 1.121.8.255
1.121.9.0/24 1.121.9.0 1.121.9.255
1.121.10.0/24 1.121.10.0 1.121.10.255
1.121.11.0/24 1.121.11.0 1.121.11.255
1.121.12.0/24 1.121.12.0 1.121.12.255
1.121.13.0/24 1.121.13.0 1.121.13.255
1.121.14.0/24 1.121.14.0 1.121.14.255
1.121.15.0/24 1.121.15.0 1.121.15.255
1.121.16.0/24 1.121.16.0 1.121.16.255
1.121.17.0/24 1.121.17.0 1.121.17.255
1.121.18.0/24 1.121.18.0 1.121.18.255
1.121.19.0/24 1.121.19.0 1.121.19.255
1.121.20.0/24 1.121.20.0 1.121.20.255
1.121.21.0/24 1.121.21.0 1.121.21.255
1.121.22.0/24 1.121.22.0 1.121.22.255
1.121.23.0/24 1.121.23.0 1.121.23.255
1.121.24.0/24 1.121.24.0 1.121.24.255
1.121.25.0/24 1.121.25.0 1.121.25.255
1.121.26.0/24 1.121.26.0 1.121.26.255
1.121.27.0/24 1.121.27.0 1.121.27.255
1.121.28.0/24 1.121.28.0 1.121.28.255
1.121.29.0/24 1.121.29.0 1.121.29.255
1.121.30.0/24 1.121.30.0 1.121.30.255
1.121.31.0/24 1.121.31.0 1.121.31.255
1.121.32.0/24 1.121.32.0 1.121.32.255
1.121.33.0/24 1.121.33.0 1.121.33.255
1.121.34.0/24 1.121.34.0 1.121.34.255
1.121.35.0/24 1.121.35.0 1.121.35.255
1.121.36.0/24 1.121.36.0 1.121.36.255
1.121.37.0/24 1.121.37.0 1.121.37.255
1.121.38.0/24 1.121.38.0 1.121.38.255
1.121.39.0/24 1.121.39.0 1.121.39.255
1.121.40.0/24 1.121.40.0 1.121.40.255
1.121.41.0/24 1.121.41.0 1.121.41.255
1.121.42.0/24 1.121.42.0 1.121.42.255
1.121.43.0/24 1.121.43.0 1.121.43.255
1.121.44.0/24 1.121.44.0 1.121.44.255
1.121.45.0/24 1.121.45.0 1.121.45.255
1.121.46.0/24 1.121.46.0 1.121.46.255
1.121.47.0/24 1.121.47.0 1.121.47.255
1.121.48.0/24 1.121.48.0 1.121.48.255
1.121.49.0/24 1.121.49.0 1.121.49.255
1.121.50.0/24 1.121.50.0 1.121.50.255
1.121.51.0/24 1.121.51.0 1.121.51.255
1.121.52.0/24 1.121.52.0 1.121.52.255
1.121.53.0/24 1.121.53.0 1.121.53.255
1.121.54.0/24 1.121.54.0 1.121.54.255
1.121.55.0/24 1.121.55.0 1.121.55.255
1.121.56.0/24 1.121.56.0 1.121.56.255
1.121.57.0/24 1.121.57.0 1.121.57.255
1.121.58.0/24 1.121.58.0 1.121.58.255
1.121.59.0/24 1.121.59.0 1.121.59.255
1.121.60.0/24 1.121.60.0 1.121.60.255
1.121.61.0/24 1.121.61.0 1.121.61.255
1.121.62.0/24 1.121.62.0 1.121.62.255
1.121.63.0/24 1.121.63.0 1.121.63.255
1.121.64.0/24 1.121.64.0 1.121.64.255
1.121.65.0/24 1.121.65.0 1.121.65.255
1.121.66.0/24 1.121.66.0 1.121.66.255
1.121.67.0/24 1.121.67.0 1.121.67.255
1.121.68.0/24 1.121.68.0 1.121.68.255
1.121.69.0/24 1.121.69.0 1.121.69.255
1.121.70.0/24 1.121.70.0 1.121.70.255
1.121.71.0/24 1.121.71.0 1.121.71.255
1.121.72.0/24 1.121.72.0 1.121.72.255
1.121.73.0/24 1.121.73.0 1.121.73.255
1.121.74.0/24 1.121.74.0 1.121.74.255
1.121.75.0/24 1.121.75.0 1.121.75.255
1.121.76.0/24 1.121.76.0 1.121.76.255
1.121.77.0/24 1.121.77.0 1.121.77.255
1.121.78.0/24 1.121.78.0 1.121.78.255
1.121.79.0/24 1.121.79.0 1.121.79.255
1.121.80.0/24 1.121.80.0 1.121.80.255
1.121.81.0/24 1.121.81.0 1.121.81.255
1.121.82.0/24 1.121.82.0 1.121.82.255
1.121.83.0/24 1.121.83.0 1.121.83.255
1.121.84.0/24 1.121.84.0 1.121.84.255
1.121.85.0/24 1.121.85.0 1.121.85.255
1.121.86.0/24 1.121.86.0 1.121.86.255
1.121.87.0/24 1.121.87.0 1.121.87.255
1.121.88.0/24 1.121.88.0 1.121.88.255
1.121.89.0/24 1.121.89.0 1.121.89.255
1.121.90.0/24 1.121.90.0 1.121.90.255
1.121.91.0/24 1.121.91.0 1.121.91.255
1.121.92.0/24 1.121.92.0 1.121.92.255
1.121.93.0/24 1.121.93.0 1.121.93.255
1.121.94.0/24 1.121.94.0 1.121.94.255
1.121.95.0/24 1.121.95.0 1.121.95.255
1.121.96.0/24 1.121.96.0 1.121.96.255
1.121.97.0/24 1.121.97.0 1.121.97.255
1.121.98.0/24 1.121.98.0 1.121.98.255
1.121.99.0/24 1.121.99.0 1.121.99.255
1.121.100.0/24 1.121.100.0 1.121.100.255
1.121.101.0/24 1.121.101.0 1.121.101.255
1.121.102.0/24 1.121.102.0 1.121.102.255
1.121.103.0/24 1.121.103.0 1.121.103.255
1.121.104.0/24 1.121.104.0 1.121.104.255
1.121.105.0/24 1.121.105.0 1.121.105.255
1.121.106.0/24 1.121.106.0 1.121.106.255
1.121.107.0/24 1.121.107.0 1.121.107.255
1.121.108.0/24 1.121.108.0 1.121.108.255
1.121.109.0/24 1.121.109.0 1.121.109.255
1.121.110.0/24 1.121.110.0 1.121.110.255
1.121.111.0/24 1.121.111.0 1.121.111.255
1.121.112.0/24 1.121.112.0 1.121.112.255
1.121.113.0/24 1.121.113.0 1.121.113.255
1.121.114.0/24 1.121.114.0 1.121.114.255
1.121.115.0/24 1.121.115.0 1.121.115.255
1.121.116.0/24 1.121.116.0 1.121.116.255
1.121.117.0/24 1.121.117.0 1.121.117.255
1.121.118.0/24 1.121.118.0 1.121.118.255
1.121.119.0/24 1.121.119.0 1.121.119.255
1.121.120.0/24 1.121.120.0 1.121.120.255
1.121.121.0/24 1.121.121.0 1.121.121.255
1.121.122.0/24 1.121.122.0 1.121.122.255
1.121.123.0/24 1.121.123.0 1.121.123.255
1.121.124.0/24 1.121.124.0 1.121.124.255
1.121.125.0/24 1.121.125.0 1.121.125.255
1.121.126.0/24 1.121.126.0 1.121.126.255
1.121.127.0/24 1.121.127.0 1.121.127.255
1.121.128.0/24 1.121.128.0 1.121.128.255
1.121.129.0/24 1.121.129.0 1.121.129.255
1.121.130.0/24 1.121.130.0 1.121.130.255
1.121.131.0/24 1.121.131.0 1.121.131.255
1.121.132.0/24 1.121.132.0 1.121.132.255
1.121.133.0/24 1.121.133.0 1.121.133.255
1.121.134.0/24 1.121.134.0 1.121.134.255
1.121.135.0/24 1.121.135.0 1.121.135.255
1.121.136.0/24 1.121.136.0 1.121.136.255
1.121.137.0/24 1.121.137.0 1.121.137.255
1.121.138.0/24 1.121.138.0 1.121.138.255
1.121.139.0/24 1.121.139.0 1.121.139.255
1.121.140.0/24 1.121.140.0 1.121.140.255
1.121.141.0/24 1.121.141.0 1.121.141.255
1.121.142.0/24 1.121.142.0 1.121.142.255
1.121.143.0/24 1.121.143.0 1.121.143.255
1.121.144.0/24 1.121.144.0 1.121.144.255
1.121.145.0/24 1.121.145.0 1.121.145.255
1.121.146.0/24 1.121.146.0 1.121.146.255
1.121.147.0/24 1.121.147.0 1.121.147.255
1.121.148.0/24 1.121.148.0 1.121.148.255
1.121.149.0/24 1.121.149.0 1.121.149.255
1.121.150.0/24 1.121.150.0 1.121.150.255
1.121.151.0/24 1.121.151.0 1.121.151.255
1.121.152.0/24 1.121.152.0 1.121.152.255
1.121.153.0/24 1.121.153.0 1.121.153.255
1.121.154.0/24 1.121.154.0 1.121.154.255
1.121.155.0/24 1.121.155.0 1.121.155.255
1.121.156.0/24 1.121.156.0 1.121.156.255
1.121.157.0/24 1.121.157.0 1.121.157.255
1.121.158.0/24 1.121.158.0 1.121.158.255
1.121.159.0/24 1.121.159.0 1.121.159.255
1.121.160.0/24 1.121.160.0 1.121.160.255
1.121.161.0/24 1.121.161.0 1.121.161.255
1.121.162.0/24 1.121.162.0 1.121.162.255
1.121.163.0/24 1.121.163.0 1.121.163.255
1.121.164.0/24 1.121.164.0 1.121.164.255
1.121.165.0/24 1.121.165.0 1.121.165.255
1.121.166.0/24 1.121.166.0 1.121.166.255
1.121.167.0/24 1.121.167.0 1.121.167.255
1.121.168.0/24 1.121.168.0 1.121.168.255
1.121.169.0/24 1.121.169.0 1.121.169.255
1.121.170.0/24 1.121.170.0 1.121.170.255
1.121.171.0/24 1.121.171.0 1.121.171.255
1.121.172.0/24 1.121.172.0 1.121.172.255
1.121.173.0/24 1.121.173.0 1.121.173.255
1.121.174.0/24 1.121.174.0 1.121.174.255
1.121.175.0/24 1.121.175.0 1.121.175.255
1.121.176.0/24 1.121.176.0 1.121.176.255
1.121.177.0/24 1.121.177.0 1.121.177.255
1.121.178.0/24 1.121.178.0 1.121.178.255
1.121.179.0/24 1.121.179.0 1.121.179.255
1.121.180.0/24 1.121.180.0 1.121.180.255
1.121.181.0/24 1.121.181.0 1.121.181.255
1.121.182.0/24 1.121.182.0 1.121.182.255
1.121.183.0/24 1.121.183.0 1.121.183.255
1.121.184.0/24 1.121.184.0 1.121.184.255
1.121.185.0/24 1.121.185.0 1.121.185.255
1.121.186.0/24 1.121.186.0 1.121.186.255
1.121.187.0/24 1.121.187.0 1.121.187.255
1.121.188.0/24 1.121.188.0 1.121.188.255
1.121.189.0/24 1.121.189.0 1.121.189.255
1.121.190.0/24 1.121.190.0 1.121.190.255
1.121.191.0/24 1.121.191.0 1.121.191.255
1.121.192.0/24 1.121.192.0 1.121.192.255
1.121.193.0/24 1.121.193.0 1.121.193.255
1.121.194.0/24 1.121.194.0 1.121.194.255
1.121.195.0/24 1.121.195.0 1.121.195.255
1.121.196.0/24 1.121.196.0 1.121.196.255
1.121.197.0/24 1.121.197.0 1.121.197.255
1.121.198.0/24 1.121.198.0 1.121.198.255
1.121.199.0/24 1.121.199.0 1.121.199.255
1.121.200.0/24 1.121.200.0 1.121.200.255
1.121.201.0/24 1.121.201.0 1.121.201.255
1.121.202.0/24 1.121.202.0 1.121.202.255
1.121.203.0/24 1.121.203.0 1.121.203.255
1.121.204.0/24 1.121.204.0 1.121.204.255
1.121.205.0/24 1.121.205.0 1.121.205.255
1.121.206.0/24 1.121.206.0 1.121.206.255
1.121.207.0/24 1.121.207.0 1.121.207.255
1.121.208.0/24 1.121.208.0 1.121.208.255
1.121.209.0/24 1.121.209.0 1.121.209.255
1.121.210.0/24 1.121.210.0 1.121.210.255
1.121.211.0/24 1.121.211.0 1.121.211.255
1.121.212.0/24 1.121.212.0 1.121.212.255
1.121.213.0/24 1.121.213.0 1.121.213.255
1.121.214.0/24 1.121.214.0 1.121.214.255
1.121.215.0/24 1.121.215.0 1.121.215.255
1.121.216.0/24 1.121.216.0 1.121.216.255
1.121.217.0/24 1.121.217.0 1.121.217.255
1.121.218.0/24 1.121.218.0 1.121.218.255
1.121.219.0/24 1.121.219.0 1.121.219.255
1.121.220.0/24 1.121.220.0 1.121.220.255
1.121.221.0/24 1.121.221.0 1.121.221.255
1.121.222.0/24 1.121.222.0 1.121.222.255
1.121.223.0/24 1.121.223.0 1.121.223.255
1.121.224.0/24 1.121.224.0 1.121.224.255
1.121.225.0/24 1.121.225.0 1.121.225.255
1.121.226.0/24 1.121.226.0 1.121.226.255
1.121.227.0/24 1.121.227.0 1.121.227.255
1.121.228.0/24 1.121.228.0 1.121.228.255
1.121.229.0/24 1.121.229.0 1.121.229.255
1.121.230.0/24 1.121.230.0 1.121.230.255
1.121.231.0/24 1.121.231.0 1.121.231.255
1.121.232.0/24 1.121.232.0 1.121.232.255
1.121.233.0/24 1.121.233.0 1.121.233.255
1.121.234.0/24 1.121.234.0 1.121.234.255
1.121.235.0/24 1.121.235.0 1.121.235.255
1.121.236.0/24 1.121.236.0 1.121.236.255
1.121.237.0/24 1.121.237.0 1.121.237.255
1.121.238.0/24 1.121.238.0 1.121.238.255
1.121.239.0/24 1.121.239.0 1.121.239.255
1.121.240.0/24 1.121.240.0 1.121.240.255
1.121.241.0/24 1.121.241.0 1.121.241.255
1.121.242.0/24 1.121.242.0 1.121.242.255
1.121.243.0/24 1.121.243.0 1.121.243.255
1.121.244.0/24 1.121.244.0 1.121.244.255
1.121.245.0/24 1.121.245.0 1.121.245.255
1.121.246.0/24 1.121.246.0 1.121.246.255
1.121.247.0/24 1.121.247.0 1.121.247.255
1.121.248.0/24 1.121.248.0 1.121.248.255
1.121.249.0/24 1.121.249.0 1.121.249.255
1.121.250.0/24 1.121.250.0 1.121.250.255
1.121.251.0/24 1.121.251.0 1.121.251.255
1.121.252.0/24 1.121.252.0 1.121.252.255
1.121.253.0/24 1.121.253.0 1.121.253.255
1.121.254.0/24 1.121.254.0 1.121.254.255
1.121.255.0/24 1.121.255.0 1.121.255.255

How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.