Find IP 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.

NetworkFirst HostLast Host
1.138.1.0/24 1.138.1.0 1.138.1.255
1.138.2.0/24 1.138.2.0 1.138.2.255
1.138.3.0/24 1.138.3.0 1.138.3.255
1.138.4.0/24 1.138.4.0 1.138.4.255
1.138.5.0/24 1.138.5.0 1.138.5.255
1.138.6.0/24 1.138.6.0 1.138.6.255
1.138.7.0/24 1.138.7.0 1.138.7.255
1.138.8.0/24 1.138.8.0 1.138.8.255
1.138.9.0/24 1.138.9.0 1.138.9.255
1.138.10.0/24 1.138.10.0 1.138.10.255
1.138.11.0/24 1.138.11.0 1.138.11.255
1.138.12.0/24 1.138.12.0 1.138.12.255
1.138.13.0/24 1.138.13.0 1.138.13.255
1.138.14.0/24 1.138.14.0 1.138.14.255
1.138.15.0/24 1.138.15.0 1.138.15.255
1.138.16.0/24 1.138.16.0 1.138.16.255
1.138.17.0/24 1.138.17.0 1.138.17.255
1.138.18.0/24 1.138.18.0 1.138.18.255
1.138.19.0/24 1.138.19.0 1.138.19.255
1.138.20.0/24 1.138.20.0 1.138.20.255
1.138.21.0/24 1.138.21.0 1.138.21.255
1.138.22.0/24 1.138.22.0 1.138.22.255
1.138.23.0/24 1.138.23.0 1.138.23.255
1.138.24.0/24 1.138.24.0 1.138.24.255
1.138.25.0/24 1.138.25.0 1.138.25.255
1.138.26.0/24 1.138.26.0 1.138.26.255
1.138.27.0/24 1.138.27.0 1.138.27.255
1.138.28.0/24 1.138.28.0 1.138.28.255
1.138.29.0/24 1.138.29.0 1.138.29.255
1.138.30.0/24 1.138.30.0 1.138.30.255
1.138.31.0/24 1.138.31.0 1.138.31.255
1.138.32.0/24 1.138.32.0 1.138.32.255
1.138.33.0/24 1.138.33.0 1.138.33.255
1.138.34.0/24 1.138.34.0 1.138.34.255
1.138.35.0/24 1.138.35.0 1.138.35.255
1.138.36.0/24 1.138.36.0 1.138.36.255
1.138.37.0/24 1.138.37.0 1.138.37.255
1.138.38.0/24 1.138.38.0 1.138.38.255
1.138.39.0/24 1.138.39.0 1.138.39.255
1.138.40.0/24 1.138.40.0 1.138.40.255
1.138.41.0/24 1.138.41.0 1.138.41.255
1.138.42.0/24 1.138.42.0 1.138.42.255
1.138.43.0/24 1.138.43.0 1.138.43.255
1.138.44.0/24 1.138.44.0 1.138.44.255
1.138.45.0/24 1.138.45.0 1.138.45.255
1.138.46.0/24 1.138.46.0 1.138.46.255
1.138.47.0/24 1.138.47.0 1.138.47.255
1.138.48.0/24 1.138.48.0 1.138.48.255
1.138.49.0/24 1.138.49.0 1.138.49.255
1.138.50.0/24 1.138.50.0 1.138.50.255
1.138.51.0/24 1.138.51.0 1.138.51.255
1.138.52.0/24 1.138.52.0 1.138.52.255
1.138.53.0/24 1.138.53.0 1.138.53.255
1.138.54.0/24 1.138.54.0 1.138.54.255
1.138.55.0/24 1.138.55.0 1.138.55.255
1.138.56.0/24 1.138.56.0 1.138.56.255
1.138.57.0/24 1.138.57.0 1.138.57.255
1.138.58.0/24 1.138.58.0 1.138.58.255
1.138.59.0/24 1.138.59.0 1.138.59.255
1.138.60.0/24 1.138.60.0 1.138.60.255


1.138.61.0/24 1.138.61.0 1.138.61.255
1.138.62.0/24 1.138.62.0 1.138.62.255
1.138.63.0/24 1.138.63.0 1.138.63.255
1.138.64.0/24 1.138.64.0 1.138.64.255
1.138.65.0/24 1.138.65.0 1.138.65.255
1.138.66.0/24 1.138.66.0 1.138.66.255
1.138.67.0/24 1.138.67.0 1.138.67.255
1.138.68.0/24 1.138.68.0 1.138.68.255
1.138.69.0/24 1.138.69.0 1.138.69.255
1.138.70.0/24 1.138.70.0 1.138.70.255
1.138.71.0/24 1.138.71.0 1.138.71.255
1.138.72.0/24 1.138.72.0 1.138.72.255
1.138.73.0/24 1.138.73.0 1.138.73.255
1.138.74.0/24 1.138.74.0 1.138.74.255
1.138.75.0/24 1.138.75.0 1.138.75.255
1.138.76.0/24 1.138.76.0 1.138.76.255
1.138.77.0/24 1.138.77.0 1.138.77.255
1.138.78.0/24 1.138.78.0 1.138.78.255
1.138.79.0/24 1.138.79.0 1.138.79.255
1.138.80.0/24 1.138.80.0 1.138.80.255
1.138.81.0/24 1.138.81.0 1.138.81.255
1.138.82.0/24 1.138.82.0 1.138.82.255
1.138.83.0/24 1.138.83.0 1.138.83.255
1.138.84.0/24 1.138.84.0 1.138.84.255
1.138.85.0/24 1.138.85.0 1.138.85.255
1.138.86.0/24 1.138.86.0 1.138.86.255
1.138.87.0/24 1.138.87.0 1.138.87.255
1.138.88.0/24 1.138.88.0 1.138.88.255
1.138.89.0/24 1.138.89.0 1.138.89.255
1.138.90.0/24 1.138.90.0 1.138.90.255
1.138.91.0/24 1.138.91.0 1.138.91.255
1.138.92.0/24 1.138.92.0 1.138.92.255
1.138.93.0/24 1.138.93.0 1.138.93.255
1.138.94.0/24 1.138.94.0 1.138.94.255
1.138.95.0/24 1.138.95.0 1.138.95.255
1.138.96.0/24 1.138.96.0 1.138.96.255
1.138.97.0/24 1.138.97.0 1.138.97.255
1.138.98.0/24 1.138.98.0 1.138.98.255
1.138.99.0/24 1.138.99.0 1.138.99.255
1.138.100.0/24 1.138.100.0 1.138.100.255
1.138.101.0/24 1.138.101.0 1.138.101.255
1.138.102.0/24 1.138.102.0 1.138.102.255
1.138.103.0/24 1.138.103.0 1.138.103.255
1.138.104.0/24 1.138.104.0 1.138.104.255
1.138.105.0/24 1.138.105.0 1.138.105.255
1.138.106.0/24 1.138.106.0 1.138.106.255
1.138.107.0/24 1.138.107.0 1.138.107.255
1.138.108.0/24 1.138.108.0 1.138.108.255
1.138.109.0/24 1.138.109.0 1.138.109.255
1.138.110.0/24 1.138.110.0 1.138.110.255
1.138.111.0/24 1.138.111.0 1.138.111.255
1.138.112.0/24 1.138.112.0 1.138.112.255
1.138.113.0/24 1.138.113.0 1.138.113.255
1.138.114.0/24 1.138.114.0 1.138.114.255
1.138.115.0/24 1.138.115.0 1.138.115.255
1.138.116.0/24 1.138.116.0 1.138.116.255
1.138.117.0/24 1.138.117.0 1.138.117.255
1.138.118.0/24 1.138.118.0 1.138.118.255
1.138.119.0/24 1.138.119.0 1.138.119.255
1.138.120.0/24 1.138.120.0 1.138.120.255


1.138.121.0/24 1.138.121.0 1.138.121.255
1.138.122.0/24 1.138.122.0 1.138.122.255
1.138.123.0/24 1.138.123.0 1.138.123.255
1.138.124.0/24 1.138.124.0 1.138.124.255
1.138.125.0/24 1.138.125.0 1.138.125.255
1.138.126.0/24 1.138.126.0 1.138.126.255
1.138.127.0/24 1.138.127.0 1.138.127.255
1.138.128.0/24 1.138.128.0 1.138.128.255
1.138.129.0/24 1.138.129.0 1.138.129.255
1.138.130.0/24 1.138.130.0 1.138.130.255
1.138.131.0/24 1.138.131.0 1.138.131.255
1.138.132.0/24 1.138.132.0 1.138.132.255
1.138.133.0/24 1.138.133.0 1.138.133.255
1.138.134.0/24 1.138.134.0 1.138.134.255
1.138.135.0/24 1.138.135.0 1.138.135.255
1.138.136.0/24 1.138.136.0 1.138.136.255
1.138.137.0/24 1.138.137.0 1.138.137.255
1.138.138.0/24 1.138.138.0 1.138.138.255
1.138.139.0/24 1.138.139.0 1.138.139.255
1.138.140.0/24 1.138.140.0 1.138.140.255
1.138.141.0/24 1.138.141.0 1.138.141.255
1.138.142.0/24 1.138.142.0 1.138.142.255
1.138.143.0/24 1.138.143.0 1.138.143.255
1.138.144.0/24 1.138.144.0 1.138.144.255
1.138.145.0/24 1.138.145.0 1.138.145.255
1.138.146.0/24 1.138.146.0 1.138.146.255
1.138.147.0/24 1.138.147.0 1.138.147.255
1.138.148.0/24 1.138.148.0 1.138.148.255
1.138.149.0/24 1.138.149.0 1.138.149.255
1.138.150.0/24 1.138.150.0 1.138.150.255
1.138.151.0/24 1.138.151.0 1.138.151.255
1.138.152.0/24 1.138.152.0 1.138.152.255
1.138.153.0/24 1.138.153.0 1.138.153.255
1.138.154.0/24 1.138.154.0 1.138.154.255
1.138.155.0/24 1.138.155.0 1.138.155.255
1.138.156.0/24 1.138.156.0 1.138.156.255
1.138.157.0/24 1.138.157.0 1.138.157.255
1.138.158.0/24 1.138.158.0 1.138.158.255
1.138.159.0/24 1.138.159.0 1.138.159.255
1.138.160.0/24 1.138.160.0 1.138.160.255
1.138.161.0/24 1.138.161.0 1.138.161.255
1.138.162.0/24 1.138.162.0 1.138.162.255
1.138.163.0/24 1.138.163.0 1.138.163.255
1.138.164.0/24 1.138.164.0 1.138.164.255
1.138.165.0/24 1.138.165.0 1.138.165.255
1.138.166.0/24 1.138.166.0 1.138.166.255
1.138.167.0/24 1.138.167.0 1.138.167.255
1.138.168.0/24 1.138.168.0 1.138.168.255
1.138.169.0/24 1.138.169.0 1.138.169.255
1.138.170.0/24 1.138.170.0 1.138.170.255
1.138.171.0/24 1.138.171.0 1.138.171.255
1.138.172.0/24 1.138.172.0 1.138.172.255
1.138.173.0/24 1.138.173.0 1.138.173.255
1.138.174.0/24 1.138.174.0 1.138.174.255
1.138.175.0/24 1.138.175.0 1.138.175.255
1.138.176.0/24 1.138.176.0 1.138.176.255
1.138.177.0/24 1.138.177.0 1.138.177.255
1.138.178.0/24 1.138.178.0 1.138.178.255
1.138.179.0/24 1.138.179.0 1.138.179.255
1.138.180.0/24 1.138.180.0 1.138.180.255


1.138.181.0/24 1.138.181.0 1.138.181.255
1.138.182.0/24 1.138.182.0 1.138.182.255
1.138.183.0/24 1.138.183.0 1.138.183.255
1.138.184.0/24 1.138.184.0 1.138.184.255
1.138.185.0/24 1.138.185.0 1.138.185.255
1.138.186.0/24 1.138.186.0 1.138.186.255
1.138.187.0/24 1.138.187.0 1.138.187.255
1.138.188.0/24 1.138.188.0 1.138.188.255
1.138.189.0/24 1.138.189.0 1.138.189.255
1.138.190.0/24 1.138.190.0 1.138.190.255
1.138.191.0/24 1.138.191.0 1.138.191.255
1.138.192.0/24 1.138.192.0 1.138.192.255
1.138.193.0/24 1.138.193.0 1.138.193.255
1.138.194.0/24 1.138.194.0 1.138.194.255
1.138.195.0/24 1.138.195.0 1.138.195.255
1.138.196.0/24 1.138.196.0 1.138.196.255
1.138.197.0/24 1.138.197.0 1.138.197.255
1.138.198.0/24 1.138.198.0 1.138.198.255
1.138.199.0/24 1.138.199.0 1.138.199.255
1.138.200.0/24 1.138.200.0 1.138.200.255
1.138.201.0/24 1.138.201.0 1.138.201.255
1.138.202.0/24 1.138.202.0 1.138.202.255
1.138.203.0/24 1.138.203.0 1.138.203.255
1.138.204.0/24 1.138.204.0 1.138.204.255
1.138.205.0/24 1.138.205.0 1.138.205.255
1.138.206.0/24 1.138.206.0 1.138.206.255
1.138.207.0/24 1.138.207.0 1.138.207.255
1.138.208.0/24 1.138.208.0 1.138.208.255
1.138.209.0/24 1.138.209.0 1.138.209.255
1.138.210.0/24 1.138.210.0 1.138.210.255
1.138.211.0/24 1.138.211.0 1.138.211.255
1.138.212.0/24 1.138.212.0 1.138.212.255
1.138.213.0/24 1.138.213.0 1.138.213.255
1.138.214.0/24 1.138.214.0 1.138.214.255
1.138.215.0/24 1.138.215.0 1.138.215.255
1.138.216.0/24 1.138.216.0 1.138.216.255
1.138.217.0/24 1.138.217.0 1.138.217.255
1.138.218.0/24 1.138.218.0 1.138.218.255
1.138.219.0/24 1.138.219.0 1.138.219.255
1.138.220.0/24 1.138.220.0 1.138.220.255
1.138.221.0/24 1.138.221.0 1.138.221.255
1.138.222.0/24 1.138.222.0 1.138.222.255
1.138.223.0/24 1.138.223.0 1.138.223.255
1.138.224.0/24 1.138.224.0 1.138.224.255
1.138.225.0/24 1.138.225.0 1.138.225.255
1.138.226.0/24 1.138.226.0 1.138.226.255
1.138.227.0/24 1.138.227.0 1.138.227.255
1.138.228.0/24 1.138.228.0 1.138.228.255
1.138.229.0/24 1.138.229.0 1.138.229.255
1.138.230.0/24 1.138.230.0 1.138.230.255
1.138.231.0/24 1.138.231.0 1.138.231.255
1.138.232.0/24 1.138.232.0 1.138.232.255
1.138.233.0/24 1.138.233.0 1.138.233.255
1.138.234.0/24 1.138.234.0 1.138.234.255
1.138.235.0/24 1.138.235.0 1.138.235.255
1.138.236.0/24 1.138.236.0 1.138.236.255
1.138.237.0/24 1.138.237.0 1.138.237.255
1.138.238.0/24 1.138.238.0 1.138.238.255
1.138.239.0/24 1.138.239.0 1.138.239.255
1.138.240.0/24 1.138.240.0 1.138.240.255
1.138.241.0/24 1.138.241.0 1.138.241.255
1.138.242.0/24 1.138.242.0 1.138.242.255
1.138.243.0/24 1.138.243.0 1.138.243.255
1.138.244.0/24 1.138.244.0 1.138.244.255
1.138.245.0/24 1.138.245.0 1.138.245.255
1.138.246.0/24 1.138.246.0 1.138.246.255
1.138.247.0/24 1.138.247.0 1.138.247.255
1.138.248.0/24 1.138.248.0 1.138.248.255
1.138.249.0/24 1.138.249.0 1.138.249.255
1.138.250.0/24 1.138.250.0 1.138.250.255
1.138.251.0/24 1.138.251.0 1.138.251.255
1.138.252.0/24 1.138.252.0 1.138.252.255
1.138.253.0/24 1.138.253.0 1.138.253.255
1.138.254.0/24 1.138.254.0 1.138.254.255
1.138.255.0/24 1.138.255.0 1.138.255.255


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.