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.

IPv4 AddressIPv6 Address
123.168.31.1 0:0:0:0:0:ffff:7ba8:1f01
123.168.31.2 0:0:0:0:0:ffff:7ba8:1f02
123.168.31.3 0:0:0:0:0:ffff:7ba8:1f03
123.168.31.4 0:0:0:0:0:ffff:7ba8:1f04
123.168.31.5 0:0:0:0:0:ffff:7ba8:1f05
123.168.31.6 0:0:0:0:0:ffff:7ba8:1f06
123.168.31.7 0:0:0:0:0:ffff:7ba8:1f07
123.168.31.8 0:0:0:0:0:ffff:7ba8:1f08
123.168.31.9 0:0:0:0:0:ffff:7ba8:1f09
123.168.31.10 0:0:0:0:0:ffff:7ba8:1f0a
123.168.31.11 0:0:0:0:0:ffff:7ba8:1f0b
123.168.31.12 0:0:0:0:0:ffff:7ba8:1f0c
123.168.31.13 0:0:0:0:0:ffff:7ba8:1f0d
123.168.31.14 0:0:0:0:0:ffff:7ba8:1f0e
123.168.31.15 0:0:0:0:0:ffff:7ba8:1f0f
123.168.31.16 0:0:0:0:0:ffff:7ba8:1f10
123.168.31.17 0:0:0:0:0:ffff:7ba8:1f11
123.168.31.18 0:0:0:0:0:ffff:7ba8:1f12
123.168.31.19 0:0:0:0:0:ffff:7ba8:1f13
123.168.31.20 0:0:0:0:0:ffff:7ba8:1f14
123.168.31.21 0:0:0:0:0:ffff:7ba8:1f15
123.168.31.22 0:0:0:0:0:ffff:7ba8:1f16
123.168.31.23 0:0:0:0:0:ffff:7ba8:1f17
123.168.31.24 0:0:0:0:0:ffff:7ba8:1f18
123.168.31.25 0:0:0:0:0:ffff:7ba8:1f19
123.168.31.26 0:0:0:0:0:ffff:7ba8:1f1a
123.168.31.27 0:0:0:0:0:ffff:7ba8:1f1b
123.168.31.28 0:0:0:0:0:ffff:7ba8:1f1c
123.168.31.29 0:0:0:0:0:ffff:7ba8:1f1d
123.168.31.30 0:0:0:0:0:ffff:7ba8:1f1e
123.168.31.31 0:0:0:0:0:ffff:7ba8:1f1f
123.168.31.32 0:0:0:0:0:ffff:7ba8:1f20
123.168.31.33 0:0:0:0:0:ffff:7ba8:1f21
123.168.31.34 0:0:0:0:0:ffff:7ba8:1f22
123.168.31.35 0:0:0:0:0:ffff:7ba8:1f23
123.168.31.36 0:0:0:0:0:ffff:7ba8:1f24
123.168.31.37 0:0:0:0:0:ffff:7ba8:1f25
123.168.31.38 0:0:0:0:0:ffff:7ba8:1f26
123.168.31.39 0:0:0:0:0:ffff:7ba8:1f27
123.168.31.40 0:0:0:0:0:ffff:7ba8:1f28
123.168.31.41 0:0:0:0:0:ffff:7ba8:1f29
123.168.31.42 0:0:0:0:0:ffff:7ba8:1f2a
123.168.31.43 0:0:0:0:0:ffff:7ba8:1f2b
123.168.31.44 0:0:0:0:0:ffff:7ba8:1f2c
123.168.31.45 0:0:0:0:0:ffff:7ba8:1f2d
123.168.31.46 0:0:0:0:0:ffff:7ba8:1f2e
123.168.31.47 0:0:0:0:0:ffff:7ba8:1f2f
123.168.31.48 0:0:0:0:0:ffff:7ba8:1f30
123.168.31.49 0:0:0:0:0:ffff:7ba8:1f31
123.168.31.50 0:0:0:0:0:ffff:7ba8:1f32
123.168.31.51 0:0:0:0:0:ffff:7ba8:1f33
123.168.31.52 0:0:0:0:0:ffff:7ba8:1f34
123.168.31.53 0:0:0:0:0:ffff:7ba8:1f35
123.168.31.54 0:0:0:0:0:ffff:7ba8:1f36
123.168.31.55 0:0:0:0:0:ffff:7ba8:1f37
123.168.31.56 0:0:0:0:0:ffff:7ba8:1f38
123.168.31.57 0:0:0:0:0:ffff:7ba8:1f39
123.168.31.58 0:0:0:0:0:ffff:7ba8:1f3a
123.168.31.59 0:0:0:0:0:ffff:7ba8:1f3b
123.168.31.60 0:0:0:0:0:ffff:7ba8:1f3c


123.168.31.61 0:0:0:0:0:ffff:7ba8:1f3d
123.168.31.62 0:0:0:0:0:ffff:7ba8:1f3e
123.168.31.63 0:0:0:0:0:ffff:7ba8:1f3f
123.168.31.64 0:0:0:0:0:ffff:7ba8:1f40
123.168.31.65 0:0:0:0:0:ffff:7ba8:1f41
123.168.31.66 0:0:0:0:0:ffff:7ba8:1f42
123.168.31.67 0:0:0:0:0:ffff:7ba8:1f43
123.168.31.68 0:0:0:0:0:ffff:7ba8:1f44
123.168.31.69 0:0:0:0:0:ffff:7ba8:1f45
123.168.31.70 0:0:0:0:0:ffff:7ba8:1f46
123.168.31.71 0:0:0:0:0:ffff:7ba8:1f47
123.168.31.72 0:0:0:0:0:ffff:7ba8:1f48
123.168.31.73 0:0:0:0:0:ffff:7ba8:1f49
123.168.31.74 0:0:0:0:0:ffff:7ba8:1f4a
123.168.31.75 0:0:0:0:0:ffff:7ba8:1f4b
123.168.31.76 0:0:0:0:0:ffff:7ba8:1f4c
123.168.31.77 0:0:0:0:0:ffff:7ba8:1f4d
123.168.31.78 0:0:0:0:0:ffff:7ba8:1f4e
123.168.31.79 0:0:0:0:0:ffff:7ba8:1f4f
123.168.31.80 0:0:0:0:0:ffff:7ba8:1f50
123.168.31.81 0:0:0:0:0:ffff:7ba8:1f51
123.168.31.82 0:0:0:0:0:ffff:7ba8:1f52
123.168.31.83 0:0:0:0:0:ffff:7ba8:1f53
123.168.31.84 0:0:0:0:0:ffff:7ba8:1f54
123.168.31.85 0:0:0:0:0:ffff:7ba8:1f55
123.168.31.86 0:0:0:0:0:ffff:7ba8:1f56
123.168.31.87 0:0:0:0:0:ffff:7ba8:1f57
123.168.31.88 0:0:0:0:0:ffff:7ba8:1f58
123.168.31.89 0:0:0:0:0:ffff:7ba8:1f59
123.168.31.90 0:0:0:0:0:ffff:7ba8:1f5a
123.168.31.91 0:0:0:0:0:ffff:7ba8:1f5b
123.168.31.92 0:0:0:0:0:ffff:7ba8:1f5c
123.168.31.93 0:0:0:0:0:ffff:7ba8:1f5d
123.168.31.94 0:0:0:0:0:ffff:7ba8:1f5e
123.168.31.95 0:0:0:0:0:ffff:7ba8:1f5f
123.168.31.96 0:0:0:0:0:ffff:7ba8:1f60
123.168.31.97 0:0:0:0:0:ffff:7ba8:1f61
123.168.31.98 0:0:0:0:0:ffff:7ba8:1f62
123.168.31.99 0:0:0:0:0:ffff:7ba8:1f63
123.168.31.100 0:0:0:0:0:ffff:7ba8:1f64
123.168.31.101 0:0:0:0:0:ffff:7ba8:1f65
123.168.31.102 0:0:0:0:0:ffff:7ba8:1f66
123.168.31.103 0:0:0:0:0:ffff:7ba8:1f67
123.168.31.104 0:0:0:0:0:ffff:7ba8:1f68
123.168.31.105 0:0:0:0:0:ffff:7ba8:1f69
123.168.31.106 0:0:0:0:0:ffff:7ba8:1f6a
123.168.31.107 0:0:0:0:0:ffff:7ba8:1f6b
123.168.31.108 0:0:0:0:0:ffff:7ba8:1f6c
123.168.31.109 0:0:0:0:0:ffff:7ba8:1f6d
123.168.31.110 0:0:0:0:0:ffff:7ba8:1f6e
123.168.31.111 0:0:0:0:0:ffff:7ba8:1f6f
123.168.31.112 0:0:0:0:0:ffff:7ba8:1f70
123.168.31.113 0:0:0:0:0:ffff:7ba8:1f71
123.168.31.114 0:0:0:0:0:ffff:7ba8:1f72
123.168.31.115 0:0:0:0:0:ffff:7ba8:1f73
123.168.31.116 0:0:0:0:0:ffff:7ba8:1f74
123.168.31.117 0:0:0:0:0:ffff:7ba8:1f75
123.168.31.118 0:0:0:0:0:ffff:7ba8:1f76
123.168.31.119 0:0:0:0:0:ffff:7ba8:1f77
123.168.31.120 0:0:0:0:0:ffff:7ba8:1f78


123.168.31.121 0:0:0:0:0:ffff:7ba8:1f79
123.168.31.122 0:0:0:0:0:ffff:7ba8:1f7a
123.168.31.123 0:0:0:0:0:ffff:7ba8:1f7b
123.168.31.124 0:0:0:0:0:ffff:7ba8:1f7c
123.168.31.125 0:0:0:0:0:ffff:7ba8:1f7d
123.168.31.126 0:0:0:0:0:ffff:7ba8:1f7e
123.168.31.127 0:0:0:0:0:ffff:7ba8:1f7f
123.168.31.128 0:0:0:0:0:ffff:7ba8:1f80
123.168.31.129 0:0:0:0:0:ffff:7ba8:1f81
123.168.31.130 0:0:0:0:0:ffff:7ba8:1f82
123.168.31.131 0:0:0:0:0:ffff:7ba8:1f83
123.168.31.132 0:0:0:0:0:ffff:7ba8:1f84
123.168.31.133 0:0:0:0:0:ffff:7ba8:1f85
123.168.31.134 0:0:0:0:0:ffff:7ba8:1f86
123.168.31.135 0:0:0:0:0:ffff:7ba8:1f87
123.168.31.136 0:0:0:0:0:ffff:7ba8:1f88
123.168.31.137 0:0:0:0:0:ffff:7ba8:1f89
123.168.31.138 0:0:0:0:0:ffff:7ba8:1f8a
123.168.31.139 0:0:0:0:0:ffff:7ba8:1f8b
123.168.31.140 0:0:0:0:0:ffff:7ba8:1f8c
123.168.31.141 0:0:0:0:0:ffff:7ba8:1f8d
123.168.31.142 0:0:0:0:0:ffff:7ba8:1f8e
123.168.31.143 0:0:0:0:0:ffff:7ba8:1f8f
123.168.31.144 0:0:0:0:0:ffff:7ba8:1f90
123.168.31.145 0:0:0:0:0:ffff:7ba8:1f91
123.168.31.146 0:0:0:0:0:ffff:7ba8:1f92
123.168.31.147 0:0:0:0:0:ffff:7ba8:1f93
123.168.31.148 0:0:0:0:0:ffff:7ba8:1f94
123.168.31.149 0:0:0:0:0:ffff:7ba8:1f95
123.168.31.150 0:0:0:0:0:ffff:7ba8:1f96
123.168.31.151 0:0:0:0:0:ffff:7ba8:1f97
123.168.31.152 0:0:0:0:0:ffff:7ba8:1f98
123.168.31.153 0:0:0:0:0:ffff:7ba8:1f99
123.168.31.154 0:0:0:0:0:ffff:7ba8:1f9a
123.168.31.155 0:0:0:0:0:ffff:7ba8:1f9b
123.168.31.156 0:0:0:0:0:ffff:7ba8:1f9c
123.168.31.157 0:0:0:0:0:ffff:7ba8:1f9d
123.168.31.158 0:0:0:0:0:ffff:7ba8:1f9e
123.168.31.159 0:0:0:0:0:ffff:7ba8:1f9f
123.168.31.160 0:0:0:0:0:ffff:7ba8:1fa0
123.168.31.161 0:0:0:0:0:ffff:7ba8:1fa1
123.168.31.162 0:0:0:0:0:ffff:7ba8:1fa2
123.168.31.163 0:0:0:0:0:ffff:7ba8:1fa3
123.168.31.164 0:0:0:0:0:ffff:7ba8:1fa4
123.168.31.165 0:0:0:0:0:ffff:7ba8:1fa5
123.168.31.166 0:0:0:0:0:ffff:7ba8:1fa6
123.168.31.167 0:0:0:0:0:ffff:7ba8:1fa7
123.168.31.168 0:0:0:0:0:ffff:7ba8:1fa8
123.168.31.169 0:0:0:0:0:ffff:7ba8:1fa9
123.168.31.170 0:0:0:0:0:ffff:7ba8:1faa
123.168.31.171 0:0:0:0:0:ffff:7ba8:1fab
123.168.31.172 0:0:0:0:0:ffff:7ba8:1fac
123.168.31.173 0:0:0:0:0:ffff:7ba8:1fad
123.168.31.174 0:0:0:0:0:ffff:7ba8:1fae
123.168.31.175 0:0:0:0:0:ffff:7ba8:1faf
123.168.31.176 0:0:0:0:0:ffff:7ba8:1fb0
123.168.31.177 0:0:0:0:0:ffff:7ba8:1fb1
123.168.31.178 0:0:0:0:0:ffff:7ba8:1fb2
123.168.31.179 0:0:0:0:0:ffff:7ba8:1fb3
123.168.31.180 0:0:0:0:0:ffff:7ba8:1fb4


123.168.31.181 0:0:0:0:0:ffff:7ba8:1fb5
123.168.31.182 0:0:0:0:0:ffff:7ba8:1fb6
123.168.31.183 0:0:0:0:0:ffff:7ba8:1fb7
123.168.31.184 0:0:0:0:0:ffff:7ba8:1fb8
123.168.31.185 0:0:0:0:0:ffff:7ba8:1fb9
123.168.31.186 0:0:0:0:0:ffff:7ba8:1fba
123.168.31.187 0:0:0:0:0:ffff:7ba8:1fbb
123.168.31.188 0:0:0:0:0:ffff:7ba8:1fbc
123.168.31.189 0:0:0:0:0:ffff:7ba8:1fbd
123.168.31.190 0:0:0:0:0:ffff:7ba8:1fbe
123.168.31.191 0:0:0:0:0:ffff:7ba8:1fbf
123.168.31.192 0:0:0:0:0:ffff:7ba8:1fc0
123.168.31.193 0:0:0:0:0:ffff:7ba8:1fc1
123.168.31.194 0:0:0:0:0:ffff:7ba8:1fc2
123.168.31.195 0:0:0:0:0:ffff:7ba8:1fc3
123.168.31.196 0:0:0:0:0:ffff:7ba8:1fc4
123.168.31.197 0:0:0:0:0:ffff:7ba8:1fc5
123.168.31.198 0:0:0:0:0:ffff:7ba8:1fc6
123.168.31.199 0:0:0:0:0:ffff:7ba8:1fc7
123.168.31.200 0:0:0:0:0:ffff:7ba8:1fc8
123.168.31.201 0:0:0:0:0:ffff:7ba8:1fc9
123.168.31.202 0:0:0:0:0:ffff:7ba8:1fca
123.168.31.203 0:0:0:0:0:ffff:7ba8:1fcb
123.168.31.204 0:0:0:0:0:ffff:7ba8:1fcc
123.168.31.205 0:0:0:0:0:ffff:7ba8:1fcd
123.168.31.206 0:0:0:0:0:ffff:7ba8:1fce
123.168.31.207 0:0:0:0:0:ffff:7ba8:1fcf
123.168.31.208 0:0:0:0:0:ffff:7ba8:1fd0
123.168.31.209 0:0:0:0:0:ffff:7ba8:1fd1
123.168.31.210 0:0:0:0:0:ffff:7ba8:1fd2
123.168.31.211 0:0:0:0:0:ffff:7ba8:1fd3
123.168.31.212 0:0:0:0:0:ffff:7ba8:1fd4
123.168.31.213 0:0:0:0:0:ffff:7ba8:1fd5
123.168.31.214 0:0:0:0:0:ffff:7ba8:1fd6
123.168.31.215 0:0:0:0:0:ffff:7ba8:1fd7
123.168.31.216 0:0:0:0:0:ffff:7ba8:1fd8
123.168.31.217 0:0:0:0:0:ffff:7ba8:1fd9
123.168.31.218 0:0:0:0:0:ffff:7ba8:1fda
123.168.31.219 0:0:0:0:0:ffff:7ba8:1fdb
123.168.31.220 0:0:0:0:0:ffff:7ba8:1fdc
123.168.31.221 0:0:0:0:0:ffff:7ba8:1fdd
123.168.31.222 0:0:0:0:0:ffff:7ba8:1fde
123.168.31.223 0:0:0:0:0:ffff:7ba8:1fdf
123.168.31.224 0:0:0:0:0:ffff:7ba8:1fe0
123.168.31.225 0:0:0:0:0:ffff:7ba8:1fe1
123.168.31.226 0:0:0:0:0:ffff:7ba8:1fe2
123.168.31.227 0:0:0:0:0:ffff:7ba8:1fe3
123.168.31.228 0:0:0:0:0:ffff:7ba8:1fe4
123.168.31.229 0:0:0:0:0:ffff:7ba8:1fe5
123.168.31.230 0:0:0:0:0:ffff:7ba8:1fe6
123.168.31.231 0:0:0:0:0:ffff:7ba8:1fe7
123.168.31.232 0:0:0:0:0:ffff:7ba8:1fe8
123.168.31.233 0:0:0:0:0:ffff:7ba8:1fe9
123.168.31.234 0:0:0:0:0:ffff:7ba8:1fea
123.168.31.235 0:0:0:0:0:ffff:7ba8:1feb
123.168.31.236 0:0:0:0:0:ffff:7ba8:1fec
123.168.31.237 0:0:0:0:0:ffff:7ba8:1fed
123.168.31.238 0:0:0:0:0:ffff:7ba8:1fee
123.168.31.239 0:0:0:0:0:ffff:7ba8:1fef
123.168.31.240 0:0:0:0:0:ffff:7ba8:1ff0
123.168.31.241 0:0:0:0:0:ffff:7ba8:1ff1
123.168.31.242 0:0:0:0:0:ffff:7ba8:1ff2
123.168.31.243 0:0:0:0:0:ffff:7ba8:1ff3
123.168.31.244 0:0:0:0:0:ffff:7ba8:1ff4
123.168.31.245 0:0:0:0:0:ffff:7ba8:1ff5
123.168.31.246 0:0:0:0:0:ffff:7ba8:1ff6
123.168.31.247 0:0:0:0:0:ffff:7ba8:1ff7
123.168.31.248 0:0:0:0:0:ffff:7ba8:1ff8
123.168.31.249 0:0:0:0:0:ffff:7ba8:1ff9
123.168.31.250 0:0:0:0:0:ffff:7ba8:1ffa
123.168.31.251 0:0:0:0:0:ffff:7ba8:1ffb
123.168.31.252 0:0:0:0:0:ffff:7ba8:1ffc
123.168.31.253 0:0:0:0:0:ffff:7ba8:1ffd
123.168.31.254 0:0:0:0:0:ffff:7ba8:1ffe
123.168.31.255 0:0:0:0:0:ffff:7ba8:1fff


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.