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
28.191.31.1 0:0:0:0:0:ffff:1cbf:1f01
28.191.31.2 0:0:0:0:0:ffff:1cbf:1f02
28.191.31.3 0:0:0:0:0:ffff:1cbf:1f03
28.191.31.4 0:0:0:0:0:ffff:1cbf:1f04
28.191.31.5 0:0:0:0:0:ffff:1cbf:1f05
28.191.31.6 0:0:0:0:0:ffff:1cbf:1f06
28.191.31.7 0:0:0:0:0:ffff:1cbf:1f07
28.191.31.8 0:0:0:0:0:ffff:1cbf:1f08
28.191.31.9 0:0:0:0:0:ffff:1cbf:1f09
28.191.31.10 0:0:0:0:0:ffff:1cbf:1f0a
28.191.31.11 0:0:0:0:0:ffff:1cbf:1f0b
28.191.31.12 0:0:0:0:0:ffff:1cbf:1f0c
28.191.31.13 0:0:0:0:0:ffff:1cbf:1f0d
28.191.31.14 0:0:0:0:0:ffff:1cbf:1f0e
28.191.31.15 0:0:0:0:0:ffff:1cbf:1f0f
28.191.31.16 0:0:0:0:0:ffff:1cbf:1f10
28.191.31.17 0:0:0:0:0:ffff:1cbf:1f11
28.191.31.18 0:0:0:0:0:ffff:1cbf:1f12
28.191.31.19 0:0:0:0:0:ffff:1cbf:1f13
28.191.31.20 0:0:0:0:0:ffff:1cbf:1f14
28.191.31.21 0:0:0:0:0:ffff:1cbf:1f15
28.191.31.22 0:0:0:0:0:ffff:1cbf:1f16
28.191.31.23 0:0:0:0:0:ffff:1cbf:1f17
28.191.31.24 0:0:0:0:0:ffff:1cbf:1f18
28.191.31.25 0:0:0:0:0:ffff:1cbf:1f19
28.191.31.26 0:0:0:0:0:ffff:1cbf:1f1a
28.191.31.27 0:0:0:0:0:ffff:1cbf:1f1b
28.191.31.28 0:0:0:0:0:ffff:1cbf:1f1c
28.191.31.29 0:0:0:0:0:ffff:1cbf:1f1d
28.191.31.30 0:0:0:0:0:ffff:1cbf:1f1e
28.191.31.31 0:0:0:0:0:ffff:1cbf:1f1f
28.191.31.32 0:0:0:0:0:ffff:1cbf:1f20
28.191.31.33 0:0:0:0:0:ffff:1cbf:1f21
28.191.31.34 0:0:0:0:0:ffff:1cbf:1f22
28.191.31.35 0:0:0:0:0:ffff:1cbf:1f23
28.191.31.36 0:0:0:0:0:ffff:1cbf:1f24
28.191.31.37 0:0:0:0:0:ffff:1cbf:1f25
28.191.31.38 0:0:0:0:0:ffff:1cbf:1f26
28.191.31.39 0:0:0:0:0:ffff:1cbf:1f27
28.191.31.40 0:0:0:0:0:ffff:1cbf:1f28
28.191.31.41 0:0:0:0:0:ffff:1cbf:1f29
28.191.31.42 0:0:0:0:0:ffff:1cbf:1f2a
28.191.31.43 0:0:0:0:0:ffff:1cbf:1f2b
28.191.31.44 0:0:0:0:0:ffff:1cbf:1f2c
28.191.31.45 0:0:0:0:0:ffff:1cbf:1f2d
28.191.31.46 0:0:0:0:0:ffff:1cbf:1f2e
28.191.31.47 0:0:0:0:0:ffff:1cbf:1f2f
28.191.31.48 0:0:0:0:0:ffff:1cbf:1f30
28.191.31.49 0:0:0:0:0:ffff:1cbf:1f31
28.191.31.50 0:0:0:0:0:ffff:1cbf:1f32
28.191.31.51 0:0:0:0:0:ffff:1cbf:1f33
28.191.31.52 0:0:0:0:0:ffff:1cbf:1f34
28.191.31.53 0:0:0:0:0:ffff:1cbf:1f35
28.191.31.54 0:0:0:0:0:ffff:1cbf:1f36
28.191.31.55 0:0:0:0:0:ffff:1cbf:1f37
28.191.31.56 0:0:0:0:0:ffff:1cbf:1f38
28.191.31.57 0:0:0:0:0:ffff:1cbf:1f39
28.191.31.58 0:0:0:0:0:ffff:1cbf:1f3a
28.191.31.59 0:0:0:0:0:ffff:1cbf:1f3b
28.191.31.60 0:0:0:0:0:ffff:1cbf:1f3c


28.191.31.61 0:0:0:0:0:ffff:1cbf:1f3d
28.191.31.62 0:0:0:0:0:ffff:1cbf:1f3e
28.191.31.63 0:0:0:0:0:ffff:1cbf:1f3f
28.191.31.64 0:0:0:0:0:ffff:1cbf:1f40
28.191.31.65 0:0:0:0:0:ffff:1cbf:1f41
28.191.31.66 0:0:0:0:0:ffff:1cbf:1f42
28.191.31.67 0:0:0:0:0:ffff:1cbf:1f43
28.191.31.68 0:0:0:0:0:ffff:1cbf:1f44
28.191.31.69 0:0:0:0:0:ffff:1cbf:1f45
28.191.31.70 0:0:0:0:0:ffff:1cbf:1f46
28.191.31.71 0:0:0:0:0:ffff:1cbf:1f47
28.191.31.72 0:0:0:0:0:ffff:1cbf:1f48
28.191.31.73 0:0:0:0:0:ffff:1cbf:1f49
28.191.31.74 0:0:0:0:0:ffff:1cbf:1f4a
28.191.31.75 0:0:0:0:0:ffff:1cbf:1f4b
28.191.31.76 0:0:0:0:0:ffff:1cbf:1f4c
28.191.31.77 0:0:0:0:0:ffff:1cbf:1f4d
28.191.31.78 0:0:0:0:0:ffff:1cbf:1f4e
28.191.31.79 0:0:0:0:0:ffff:1cbf:1f4f
28.191.31.80 0:0:0:0:0:ffff:1cbf:1f50
28.191.31.81 0:0:0:0:0:ffff:1cbf:1f51
28.191.31.82 0:0:0:0:0:ffff:1cbf:1f52
28.191.31.83 0:0:0:0:0:ffff:1cbf:1f53
28.191.31.84 0:0:0:0:0:ffff:1cbf:1f54
28.191.31.85 0:0:0:0:0:ffff:1cbf:1f55
28.191.31.86 0:0:0:0:0:ffff:1cbf:1f56
28.191.31.87 0:0:0:0:0:ffff:1cbf:1f57
28.191.31.88 0:0:0:0:0:ffff:1cbf:1f58
28.191.31.89 0:0:0:0:0:ffff:1cbf:1f59
28.191.31.90 0:0:0:0:0:ffff:1cbf:1f5a
28.191.31.91 0:0:0:0:0:ffff:1cbf:1f5b
28.191.31.92 0:0:0:0:0:ffff:1cbf:1f5c
28.191.31.93 0:0:0:0:0:ffff:1cbf:1f5d
28.191.31.94 0:0:0:0:0:ffff:1cbf:1f5e
28.191.31.95 0:0:0:0:0:ffff:1cbf:1f5f
28.191.31.96 0:0:0:0:0:ffff:1cbf:1f60
28.191.31.97 0:0:0:0:0:ffff:1cbf:1f61
28.191.31.98 0:0:0:0:0:ffff:1cbf:1f62
28.191.31.99 0:0:0:0:0:ffff:1cbf:1f63
28.191.31.100 0:0:0:0:0:ffff:1cbf:1f64
28.191.31.101 0:0:0:0:0:ffff:1cbf:1f65
28.191.31.102 0:0:0:0:0:ffff:1cbf:1f66
28.191.31.103 0:0:0:0:0:ffff:1cbf:1f67
28.191.31.104 0:0:0:0:0:ffff:1cbf:1f68
28.191.31.105 0:0:0:0:0:ffff:1cbf:1f69
28.191.31.106 0:0:0:0:0:ffff:1cbf:1f6a
28.191.31.107 0:0:0:0:0:ffff:1cbf:1f6b
28.191.31.108 0:0:0:0:0:ffff:1cbf:1f6c
28.191.31.109 0:0:0:0:0:ffff:1cbf:1f6d
28.191.31.110 0:0:0:0:0:ffff:1cbf:1f6e
28.191.31.111 0:0:0:0:0:ffff:1cbf:1f6f
28.191.31.112 0:0:0:0:0:ffff:1cbf:1f70
28.191.31.113 0:0:0:0:0:ffff:1cbf:1f71
28.191.31.114 0:0:0:0:0:ffff:1cbf:1f72
28.191.31.115 0:0:0:0:0:ffff:1cbf:1f73
28.191.31.116 0:0:0:0:0:ffff:1cbf:1f74
28.191.31.117 0:0:0:0:0:ffff:1cbf:1f75
28.191.31.118 0:0:0:0:0:ffff:1cbf:1f76
28.191.31.119 0:0:0:0:0:ffff:1cbf:1f77
28.191.31.120 0:0:0:0:0:ffff:1cbf:1f78


28.191.31.121 0:0:0:0:0:ffff:1cbf:1f79
28.191.31.122 0:0:0:0:0:ffff:1cbf:1f7a
28.191.31.123 0:0:0:0:0:ffff:1cbf:1f7b
28.191.31.124 0:0:0:0:0:ffff:1cbf:1f7c
28.191.31.125 0:0:0:0:0:ffff:1cbf:1f7d
28.191.31.126 0:0:0:0:0:ffff:1cbf:1f7e
28.191.31.127 0:0:0:0:0:ffff:1cbf:1f7f
28.191.31.128 0:0:0:0:0:ffff:1cbf:1f80
28.191.31.129 0:0:0:0:0:ffff:1cbf:1f81
28.191.31.130 0:0:0:0:0:ffff:1cbf:1f82
28.191.31.131 0:0:0:0:0:ffff:1cbf:1f83
28.191.31.132 0:0:0:0:0:ffff:1cbf:1f84
28.191.31.133 0:0:0:0:0:ffff:1cbf:1f85
28.191.31.134 0:0:0:0:0:ffff:1cbf:1f86
28.191.31.135 0:0:0:0:0:ffff:1cbf:1f87
28.191.31.136 0:0:0:0:0:ffff:1cbf:1f88
28.191.31.137 0:0:0:0:0:ffff:1cbf:1f89
28.191.31.138 0:0:0:0:0:ffff:1cbf:1f8a
28.191.31.139 0:0:0:0:0:ffff:1cbf:1f8b
28.191.31.140 0:0:0:0:0:ffff:1cbf:1f8c
28.191.31.141 0:0:0:0:0:ffff:1cbf:1f8d
28.191.31.142 0:0:0:0:0:ffff:1cbf:1f8e
28.191.31.143 0:0:0:0:0:ffff:1cbf:1f8f
28.191.31.144 0:0:0:0:0:ffff:1cbf:1f90
28.191.31.145 0:0:0:0:0:ffff:1cbf:1f91
28.191.31.146 0:0:0:0:0:ffff:1cbf:1f92
28.191.31.147 0:0:0:0:0:ffff:1cbf:1f93
28.191.31.148 0:0:0:0:0:ffff:1cbf:1f94
28.191.31.149 0:0:0:0:0:ffff:1cbf:1f95
28.191.31.150 0:0:0:0:0:ffff:1cbf:1f96
28.191.31.151 0:0:0:0:0:ffff:1cbf:1f97
28.191.31.152 0:0:0:0:0:ffff:1cbf:1f98
28.191.31.153 0:0:0:0:0:ffff:1cbf:1f99
28.191.31.154 0:0:0:0:0:ffff:1cbf:1f9a
28.191.31.155 0:0:0:0:0:ffff:1cbf:1f9b
28.191.31.156 0:0:0:0:0:ffff:1cbf:1f9c
28.191.31.157 0:0:0:0:0:ffff:1cbf:1f9d
28.191.31.158 0:0:0:0:0:ffff:1cbf:1f9e
28.191.31.159 0:0:0:0:0:ffff:1cbf:1f9f
28.191.31.160 0:0:0:0:0:ffff:1cbf:1fa0
28.191.31.161 0:0:0:0:0:ffff:1cbf:1fa1
28.191.31.162 0:0:0:0:0:ffff:1cbf:1fa2
28.191.31.163 0:0:0:0:0:ffff:1cbf:1fa3
28.191.31.164 0:0:0:0:0:ffff:1cbf:1fa4
28.191.31.165 0:0:0:0:0:ffff:1cbf:1fa5
28.191.31.166 0:0:0:0:0:ffff:1cbf:1fa6
28.191.31.167 0:0:0:0:0:ffff:1cbf:1fa7
28.191.31.168 0:0:0:0:0:ffff:1cbf:1fa8
28.191.31.169 0:0:0:0:0:ffff:1cbf:1fa9
28.191.31.170 0:0:0:0:0:ffff:1cbf:1faa
28.191.31.171 0:0:0:0:0:ffff:1cbf:1fab
28.191.31.172 0:0:0:0:0:ffff:1cbf:1fac
28.191.31.173 0:0:0:0:0:ffff:1cbf:1fad
28.191.31.174 0:0:0:0:0:ffff:1cbf:1fae
28.191.31.175 0:0:0:0:0:ffff:1cbf:1faf
28.191.31.176 0:0:0:0:0:ffff:1cbf:1fb0
28.191.31.177 0:0:0:0:0:ffff:1cbf:1fb1
28.191.31.178 0:0:0:0:0:ffff:1cbf:1fb2
28.191.31.179 0:0:0:0:0:ffff:1cbf:1fb3
28.191.31.180 0:0:0:0:0:ffff:1cbf:1fb4


28.191.31.181 0:0:0:0:0:ffff:1cbf:1fb5
28.191.31.182 0:0:0:0:0:ffff:1cbf:1fb6
28.191.31.183 0:0:0:0:0:ffff:1cbf:1fb7
28.191.31.184 0:0:0:0:0:ffff:1cbf:1fb8
28.191.31.185 0:0:0:0:0:ffff:1cbf:1fb9
28.191.31.186 0:0:0:0:0:ffff:1cbf:1fba
28.191.31.187 0:0:0:0:0:ffff:1cbf:1fbb
28.191.31.188 0:0:0:0:0:ffff:1cbf:1fbc
28.191.31.189 0:0:0:0:0:ffff:1cbf:1fbd
28.191.31.190 0:0:0:0:0:ffff:1cbf:1fbe
28.191.31.191 0:0:0:0:0:ffff:1cbf:1fbf
28.191.31.192 0:0:0:0:0:ffff:1cbf:1fc0
28.191.31.193 0:0:0:0:0:ffff:1cbf:1fc1
28.191.31.194 0:0:0:0:0:ffff:1cbf:1fc2
28.191.31.195 0:0:0:0:0:ffff:1cbf:1fc3
28.191.31.196 0:0:0:0:0:ffff:1cbf:1fc4
28.191.31.197 0:0:0:0:0:ffff:1cbf:1fc5
28.191.31.198 0:0:0:0:0:ffff:1cbf:1fc6
28.191.31.199 0:0:0:0:0:ffff:1cbf:1fc7
28.191.31.200 0:0:0:0:0:ffff:1cbf:1fc8
28.191.31.201 0:0:0:0:0:ffff:1cbf:1fc9
28.191.31.202 0:0:0:0:0:ffff:1cbf:1fca
28.191.31.203 0:0:0:0:0:ffff:1cbf:1fcb
28.191.31.204 0:0:0:0:0:ffff:1cbf:1fcc
28.191.31.205 0:0:0:0:0:ffff:1cbf:1fcd
28.191.31.206 0:0:0:0:0:ffff:1cbf:1fce
28.191.31.207 0:0:0:0:0:ffff:1cbf:1fcf
28.191.31.208 0:0:0:0:0:ffff:1cbf:1fd0
28.191.31.209 0:0:0:0:0:ffff:1cbf:1fd1
28.191.31.210 0:0:0:0:0:ffff:1cbf:1fd2
28.191.31.211 0:0:0:0:0:ffff:1cbf:1fd3
28.191.31.212 0:0:0:0:0:ffff:1cbf:1fd4
28.191.31.213 0:0:0:0:0:ffff:1cbf:1fd5
28.191.31.214 0:0:0:0:0:ffff:1cbf:1fd6
28.191.31.215 0:0:0:0:0:ffff:1cbf:1fd7
28.191.31.216 0:0:0:0:0:ffff:1cbf:1fd8
28.191.31.217 0:0:0:0:0:ffff:1cbf:1fd9
28.191.31.218 0:0:0:0:0:ffff:1cbf:1fda
28.191.31.219 0:0:0:0:0:ffff:1cbf:1fdb
28.191.31.220 0:0:0:0:0:ffff:1cbf:1fdc
28.191.31.221 0:0:0:0:0:ffff:1cbf:1fdd
28.191.31.222 0:0:0:0:0:ffff:1cbf:1fde
28.191.31.223 0:0:0:0:0:ffff:1cbf:1fdf
28.191.31.224 0:0:0:0:0:ffff:1cbf:1fe0
28.191.31.225 0:0:0:0:0:ffff:1cbf:1fe1
28.191.31.226 0:0:0:0:0:ffff:1cbf:1fe2
28.191.31.227 0:0:0:0:0:ffff:1cbf:1fe3
28.191.31.228 0:0:0:0:0:ffff:1cbf:1fe4
28.191.31.229 0:0:0:0:0:ffff:1cbf:1fe5
28.191.31.230 0:0:0:0:0:ffff:1cbf:1fe6
28.191.31.231 0:0:0:0:0:ffff:1cbf:1fe7
28.191.31.232 0:0:0:0:0:ffff:1cbf:1fe8
28.191.31.233 0:0:0:0:0:ffff:1cbf:1fe9
28.191.31.234 0:0:0:0:0:ffff:1cbf:1fea
28.191.31.235 0:0:0:0:0:ffff:1cbf:1feb
28.191.31.236 0:0:0:0:0:ffff:1cbf:1fec
28.191.31.237 0:0:0:0:0:ffff:1cbf:1fed
28.191.31.238 0:0:0:0:0:ffff:1cbf:1fee
28.191.31.239 0:0:0:0:0:ffff:1cbf:1fef
28.191.31.240 0:0:0:0:0:ffff:1cbf:1ff0
28.191.31.241 0:0:0:0:0:ffff:1cbf:1ff1
28.191.31.242 0:0:0:0:0:ffff:1cbf:1ff2
28.191.31.243 0:0:0:0:0:ffff:1cbf:1ff3
28.191.31.244 0:0:0:0:0:ffff:1cbf:1ff4
28.191.31.245 0:0:0:0:0:ffff:1cbf:1ff5
28.191.31.246 0:0:0:0:0:ffff:1cbf:1ff6
28.191.31.247 0:0:0:0:0:ffff:1cbf:1ff7
28.191.31.248 0:0:0:0:0:ffff:1cbf:1ff8
28.191.31.249 0:0:0:0:0:ffff:1cbf:1ff9
28.191.31.250 0:0:0:0:0:ffff:1cbf:1ffa
28.191.31.251 0:0:0:0:0:ffff:1cbf:1ffb
28.191.31.252 0:0:0:0:0:ffff:1cbf:1ffc
28.191.31.253 0:0:0:0:0:ffff:1cbf:1ffd
28.191.31.254 0:0:0:0:0:ffff:1cbf:1ffe
28.191.31.255 0:0:0:0:0:ffff:1cbf: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.