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
4.149.1.0/24 4.149.1.0 4.149.1.255
4.149.2.0/24 4.149.2.0 4.149.2.255
4.149.3.0/24 4.149.3.0 4.149.3.255
4.149.4.0/24 4.149.4.0 4.149.4.255
4.149.5.0/24 4.149.5.0 4.149.5.255
4.149.6.0/24 4.149.6.0 4.149.6.255
4.149.7.0/24 4.149.7.0 4.149.7.255
4.149.8.0/24 4.149.8.0 4.149.8.255
4.149.9.0/24 4.149.9.0 4.149.9.255
4.149.10.0/24 4.149.10.0 4.149.10.255
4.149.11.0/24 4.149.11.0 4.149.11.255
4.149.12.0/24 4.149.12.0 4.149.12.255
4.149.13.0/24 4.149.13.0 4.149.13.255
4.149.14.0/24 4.149.14.0 4.149.14.255
4.149.15.0/24 4.149.15.0 4.149.15.255
4.149.16.0/24 4.149.16.0 4.149.16.255
4.149.17.0/24 4.149.17.0 4.149.17.255
4.149.18.0/24 4.149.18.0 4.149.18.255
4.149.19.0/24 4.149.19.0 4.149.19.255
4.149.20.0/24 4.149.20.0 4.149.20.255
4.149.21.0/24 4.149.21.0 4.149.21.255
4.149.22.0/24 4.149.22.0 4.149.22.255
4.149.23.0/24 4.149.23.0 4.149.23.255
4.149.24.0/24 4.149.24.0 4.149.24.255
4.149.25.0/24 4.149.25.0 4.149.25.255
4.149.26.0/24 4.149.26.0 4.149.26.255
4.149.27.0/24 4.149.27.0 4.149.27.255
4.149.28.0/24 4.149.28.0 4.149.28.255
4.149.29.0/24 4.149.29.0 4.149.29.255
4.149.30.0/24 4.149.30.0 4.149.30.255
4.149.31.0/24 4.149.31.0 4.149.31.255
4.149.32.0/24 4.149.32.0 4.149.32.255
4.149.33.0/24 4.149.33.0 4.149.33.255
4.149.34.0/24 4.149.34.0 4.149.34.255
4.149.35.0/24 4.149.35.0 4.149.35.255
4.149.36.0/24 4.149.36.0 4.149.36.255
4.149.37.0/24 4.149.37.0 4.149.37.255
4.149.38.0/24 4.149.38.0 4.149.38.255
4.149.39.0/24 4.149.39.0 4.149.39.255
4.149.40.0/24 4.149.40.0 4.149.40.255
4.149.41.0/24 4.149.41.0 4.149.41.255
4.149.42.0/24 4.149.42.0 4.149.42.255
4.149.43.0/24 4.149.43.0 4.149.43.255
4.149.44.0/24 4.149.44.0 4.149.44.255
4.149.45.0/24 4.149.45.0 4.149.45.255
4.149.46.0/24 4.149.46.0 4.149.46.255
4.149.47.0/24 4.149.47.0 4.149.47.255
4.149.48.0/24 4.149.48.0 4.149.48.255
4.149.49.0/24 4.149.49.0 4.149.49.255
4.149.50.0/24 4.149.50.0 4.149.50.255
4.149.51.0/24 4.149.51.0 4.149.51.255
4.149.52.0/24 4.149.52.0 4.149.52.255
4.149.53.0/24 4.149.53.0 4.149.53.255
4.149.54.0/24 4.149.54.0 4.149.54.255
4.149.55.0/24 4.149.55.0 4.149.55.255
4.149.56.0/24 4.149.56.0 4.149.56.255
4.149.57.0/24 4.149.57.0 4.149.57.255
4.149.58.0/24 4.149.58.0 4.149.58.255
4.149.59.0/24 4.149.59.0 4.149.59.255
4.149.60.0/24 4.149.60.0 4.149.60.255


4.149.61.0/24 4.149.61.0 4.149.61.255
4.149.62.0/24 4.149.62.0 4.149.62.255
4.149.63.0/24 4.149.63.0 4.149.63.255
4.149.64.0/24 4.149.64.0 4.149.64.255
4.149.65.0/24 4.149.65.0 4.149.65.255
4.149.66.0/24 4.149.66.0 4.149.66.255
4.149.67.0/24 4.149.67.0 4.149.67.255
4.149.68.0/24 4.149.68.0 4.149.68.255
4.149.69.0/24 4.149.69.0 4.149.69.255
4.149.70.0/24 4.149.70.0 4.149.70.255
4.149.71.0/24 4.149.71.0 4.149.71.255
4.149.72.0/24 4.149.72.0 4.149.72.255
4.149.73.0/24 4.149.73.0 4.149.73.255
4.149.74.0/24 4.149.74.0 4.149.74.255
4.149.75.0/24 4.149.75.0 4.149.75.255
4.149.76.0/24 4.149.76.0 4.149.76.255
4.149.77.0/24 4.149.77.0 4.149.77.255
4.149.78.0/24 4.149.78.0 4.149.78.255
4.149.79.0/24 4.149.79.0 4.149.79.255
4.149.80.0/24 4.149.80.0 4.149.80.255
4.149.81.0/24 4.149.81.0 4.149.81.255
4.149.82.0/24 4.149.82.0 4.149.82.255
4.149.83.0/24 4.149.83.0 4.149.83.255
4.149.84.0/24 4.149.84.0 4.149.84.255
4.149.85.0/24 4.149.85.0 4.149.85.255
4.149.86.0/24 4.149.86.0 4.149.86.255
4.149.87.0/24 4.149.87.0 4.149.87.255
4.149.88.0/24 4.149.88.0 4.149.88.255
4.149.89.0/24 4.149.89.0 4.149.89.255
4.149.90.0/24 4.149.90.0 4.149.90.255
4.149.91.0/24 4.149.91.0 4.149.91.255
4.149.92.0/24 4.149.92.0 4.149.92.255
4.149.93.0/24 4.149.93.0 4.149.93.255
4.149.94.0/24 4.149.94.0 4.149.94.255
4.149.95.0/24 4.149.95.0 4.149.95.255
4.149.96.0/24 4.149.96.0 4.149.96.255
4.149.97.0/24 4.149.97.0 4.149.97.255
4.149.98.0/24 4.149.98.0 4.149.98.255
4.149.99.0/24 4.149.99.0 4.149.99.255
4.149.100.0/24 4.149.100.0 4.149.100.255
4.149.101.0/24 4.149.101.0 4.149.101.255
4.149.102.0/24 4.149.102.0 4.149.102.255
4.149.103.0/24 4.149.103.0 4.149.103.255
4.149.104.0/24 4.149.104.0 4.149.104.255
4.149.105.0/24 4.149.105.0 4.149.105.255
4.149.106.0/24 4.149.106.0 4.149.106.255
4.149.107.0/24 4.149.107.0 4.149.107.255
4.149.108.0/24 4.149.108.0 4.149.108.255
4.149.109.0/24 4.149.109.0 4.149.109.255
4.149.110.0/24 4.149.110.0 4.149.110.255
4.149.111.0/24 4.149.111.0 4.149.111.255
4.149.112.0/24 4.149.112.0 4.149.112.255
4.149.113.0/24 4.149.113.0 4.149.113.255
4.149.114.0/24 4.149.114.0 4.149.114.255
4.149.115.0/24 4.149.115.0 4.149.115.255
4.149.116.0/24 4.149.116.0 4.149.116.255
4.149.117.0/24 4.149.117.0 4.149.117.255
4.149.118.0/24 4.149.118.0 4.149.118.255
4.149.119.0/24 4.149.119.0 4.149.119.255
4.149.120.0/24 4.149.120.0 4.149.120.255


4.149.121.0/24 4.149.121.0 4.149.121.255
4.149.122.0/24 4.149.122.0 4.149.122.255
4.149.123.0/24 4.149.123.0 4.149.123.255
4.149.124.0/24 4.149.124.0 4.149.124.255
4.149.125.0/24 4.149.125.0 4.149.125.255
4.149.126.0/24 4.149.126.0 4.149.126.255
4.149.127.0/24 4.149.127.0 4.149.127.255
4.149.128.0/24 4.149.128.0 4.149.128.255
4.149.129.0/24 4.149.129.0 4.149.129.255
4.149.130.0/24 4.149.130.0 4.149.130.255
4.149.131.0/24 4.149.131.0 4.149.131.255
4.149.132.0/24 4.149.132.0 4.149.132.255
4.149.133.0/24 4.149.133.0 4.149.133.255
4.149.134.0/24 4.149.134.0 4.149.134.255
4.149.135.0/24 4.149.135.0 4.149.135.255
4.149.136.0/24 4.149.136.0 4.149.136.255
4.149.137.0/24 4.149.137.0 4.149.137.255
4.149.138.0/24 4.149.138.0 4.149.138.255
4.149.139.0/24 4.149.139.0 4.149.139.255
4.149.140.0/24 4.149.140.0 4.149.140.255
4.149.141.0/24 4.149.141.0 4.149.141.255
4.149.142.0/24 4.149.142.0 4.149.142.255
4.149.143.0/24 4.149.143.0 4.149.143.255
4.149.144.0/24 4.149.144.0 4.149.144.255
4.149.145.0/24 4.149.145.0 4.149.145.255
4.149.146.0/24 4.149.146.0 4.149.146.255
4.149.147.0/24 4.149.147.0 4.149.147.255
4.149.148.0/24 4.149.148.0 4.149.148.255
4.149.149.0/24 4.149.149.0 4.149.149.255
4.149.150.0/24 4.149.150.0 4.149.150.255
4.149.151.0/24 4.149.151.0 4.149.151.255
4.149.152.0/24 4.149.152.0 4.149.152.255
4.149.153.0/24 4.149.153.0 4.149.153.255
4.149.154.0/24 4.149.154.0 4.149.154.255
4.149.155.0/24 4.149.155.0 4.149.155.255
4.149.156.0/24 4.149.156.0 4.149.156.255
4.149.157.0/24 4.149.157.0 4.149.157.255
4.149.158.0/24 4.149.158.0 4.149.158.255
4.149.159.0/24 4.149.159.0 4.149.159.255
4.149.160.0/24 4.149.160.0 4.149.160.255
4.149.161.0/24 4.149.161.0 4.149.161.255
4.149.162.0/24 4.149.162.0 4.149.162.255
4.149.163.0/24 4.149.163.0 4.149.163.255
4.149.164.0/24 4.149.164.0 4.149.164.255
4.149.165.0/24 4.149.165.0 4.149.165.255
4.149.166.0/24 4.149.166.0 4.149.166.255
4.149.167.0/24 4.149.167.0 4.149.167.255
4.149.168.0/24 4.149.168.0 4.149.168.255
4.149.169.0/24 4.149.169.0 4.149.169.255
4.149.170.0/24 4.149.170.0 4.149.170.255
4.149.171.0/24 4.149.171.0 4.149.171.255
4.149.172.0/24 4.149.172.0 4.149.172.255
4.149.173.0/24 4.149.173.0 4.149.173.255
4.149.174.0/24 4.149.174.0 4.149.174.255
4.149.175.0/24 4.149.175.0 4.149.175.255
4.149.176.0/24 4.149.176.0 4.149.176.255
4.149.177.0/24 4.149.177.0 4.149.177.255
4.149.178.0/24 4.149.178.0 4.149.178.255
4.149.179.0/24 4.149.179.0 4.149.179.255
4.149.180.0/24 4.149.180.0 4.149.180.255


4.149.181.0/24 4.149.181.0 4.149.181.255
4.149.182.0/24 4.149.182.0 4.149.182.255
4.149.183.0/24 4.149.183.0 4.149.183.255
4.149.184.0/24 4.149.184.0 4.149.184.255
4.149.185.0/24 4.149.185.0 4.149.185.255
4.149.186.0/24 4.149.186.0 4.149.186.255
4.149.187.0/24 4.149.187.0 4.149.187.255
4.149.188.0/24 4.149.188.0 4.149.188.255
4.149.189.0/24 4.149.189.0 4.149.189.255
4.149.190.0/24 4.149.190.0 4.149.190.255
4.149.191.0/24 4.149.191.0 4.149.191.255
4.149.192.0/24 4.149.192.0 4.149.192.255
4.149.193.0/24 4.149.193.0 4.149.193.255
4.149.194.0/24 4.149.194.0 4.149.194.255
4.149.195.0/24 4.149.195.0 4.149.195.255
4.149.196.0/24 4.149.196.0 4.149.196.255
4.149.197.0/24 4.149.197.0 4.149.197.255
4.149.198.0/24 4.149.198.0 4.149.198.255
4.149.199.0/24 4.149.199.0 4.149.199.255
4.149.200.0/24 4.149.200.0 4.149.200.255
4.149.201.0/24 4.149.201.0 4.149.201.255
4.149.202.0/24 4.149.202.0 4.149.202.255
4.149.203.0/24 4.149.203.0 4.149.203.255
4.149.204.0/24 4.149.204.0 4.149.204.255
4.149.205.0/24 4.149.205.0 4.149.205.255
4.149.206.0/24 4.149.206.0 4.149.206.255
4.149.207.0/24 4.149.207.0 4.149.207.255
4.149.208.0/24 4.149.208.0 4.149.208.255
4.149.209.0/24 4.149.209.0 4.149.209.255
4.149.210.0/24 4.149.210.0 4.149.210.255
4.149.211.0/24 4.149.211.0 4.149.211.255
4.149.212.0/24 4.149.212.0 4.149.212.255
4.149.213.0/24 4.149.213.0 4.149.213.255
4.149.214.0/24 4.149.214.0 4.149.214.255
4.149.215.0/24 4.149.215.0 4.149.215.255
4.149.216.0/24 4.149.216.0 4.149.216.255
4.149.217.0/24 4.149.217.0 4.149.217.255
4.149.218.0/24 4.149.218.0 4.149.218.255
4.149.219.0/24 4.149.219.0 4.149.219.255
4.149.220.0/24 4.149.220.0 4.149.220.255
4.149.221.0/24 4.149.221.0 4.149.221.255
4.149.222.0/24 4.149.222.0 4.149.222.255
4.149.223.0/24 4.149.223.0 4.149.223.255
4.149.224.0/24 4.149.224.0 4.149.224.255
4.149.225.0/24 4.149.225.0 4.149.225.255
4.149.226.0/24 4.149.226.0 4.149.226.255
4.149.227.0/24 4.149.227.0 4.149.227.255
4.149.228.0/24 4.149.228.0 4.149.228.255
4.149.229.0/24 4.149.229.0 4.149.229.255
4.149.230.0/24 4.149.230.0 4.149.230.255
4.149.231.0/24 4.149.231.0 4.149.231.255
4.149.232.0/24 4.149.232.0 4.149.232.255
4.149.233.0/24 4.149.233.0 4.149.233.255
4.149.234.0/24 4.149.234.0 4.149.234.255
4.149.235.0/24 4.149.235.0 4.149.235.255
4.149.236.0/24 4.149.236.0 4.149.236.255
4.149.237.0/24 4.149.237.0 4.149.237.255
4.149.238.0/24 4.149.238.0 4.149.238.255
4.149.239.0/24 4.149.239.0 4.149.239.255
4.149.240.0/24 4.149.240.0 4.149.240.255
4.149.241.0/24 4.149.241.0 4.149.241.255
4.149.242.0/24 4.149.242.0 4.149.242.255
4.149.243.0/24 4.149.243.0 4.149.243.255
4.149.244.0/24 4.149.244.0 4.149.244.255
4.149.245.0/24 4.149.245.0 4.149.245.255
4.149.246.0/24 4.149.246.0 4.149.246.255
4.149.247.0/24 4.149.247.0 4.149.247.255
4.149.248.0/24 4.149.248.0 4.149.248.255
4.149.249.0/24 4.149.249.0 4.149.249.255
4.149.250.0/24 4.149.250.0 4.149.250.255
4.149.251.0/24 4.149.251.0 4.149.251.255
4.149.252.0/24 4.149.252.0 4.149.252.255
4.149.253.0/24 4.149.253.0 4.149.253.255
4.149.254.0/24 4.149.254.0 4.149.254.255
4.149.255.0/24 4.149.255.0 4.149.255.255


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.