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
31.223.81.1 0:0:0:0:0:ffff:1fdf:5101
31.223.81.2 0:0:0:0:0:ffff:1fdf:5102
31.223.81.3 0:0:0:0:0:ffff:1fdf:5103
31.223.81.4 0:0:0:0:0:ffff:1fdf:5104
31.223.81.5 0:0:0:0:0:ffff:1fdf:5105
31.223.81.6 0:0:0:0:0:ffff:1fdf:5106
31.223.81.7 0:0:0:0:0:ffff:1fdf:5107
31.223.81.8 0:0:0:0:0:ffff:1fdf:5108
31.223.81.9 0:0:0:0:0:ffff:1fdf:5109
31.223.81.10 0:0:0:0:0:ffff:1fdf:510a
31.223.81.11 0:0:0:0:0:ffff:1fdf:510b
31.223.81.12 0:0:0:0:0:ffff:1fdf:510c
31.223.81.13 0:0:0:0:0:ffff:1fdf:510d
31.223.81.14 0:0:0:0:0:ffff:1fdf:510e
31.223.81.15 0:0:0:0:0:ffff:1fdf:510f
31.223.81.16 0:0:0:0:0:ffff:1fdf:5110
31.223.81.17 0:0:0:0:0:ffff:1fdf:5111
31.223.81.18 0:0:0:0:0:ffff:1fdf:5112
31.223.81.19 0:0:0:0:0:ffff:1fdf:5113
31.223.81.20 0:0:0:0:0:ffff:1fdf:5114
31.223.81.21 0:0:0:0:0:ffff:1fdf:5115
31.223.81.22 0:0:0:0:0:ffff:1fdf:5116
31.223.81.23 0:0:0:0:0:ffff:1fdf:5117
31.223.81.24 0:0:0:0:0:ffff:1fdf:5118
31.223.81.25 0:0:0:0:0:ffff:1fdf:5119
31.223.81.26 0:0:0:0:0:ffff:1fdf:511a
31.223.81.27 0:0:0:0:0:ffff:1fdf:511b
31.223.81.28 0:0:0:0:0:ffff:1fdf:511c
31.223.81.29 0:0:0:0:0:ffff:1fdf:511d
31.223.81.30 0:0:0:0:0:ffff:1fdf:511e
31.223.81.31 0:0:0:0:0:ffff:1fdf:511f
31.223.81.32 0:0:0:0:0:ffff:1fdf:5120
31.223.81.33 0:0:0:0:0:ffff:1fdf:5121
31.223.81.34 0:0:0:0:0:ffff:1fdf:5122
31.223.81.35 0:0:0:0:0:ffff:1fdf:5123
31.223.81.36 0:0:0:0:0:ffff:1fdf:5124
31.223.81.37 0:0:0:0:0:ffff:1fdf:5125
31.223.81.38 0:0:0:0:0:ffff:1fdf:5126
31.223.81.39 0:0:0:0:0:ffff:1fdf:5127
31.223.81.40 0:0:0:0:0:ffff:1fdf:5128
31.223.81.41 0:0:0:0:0:ffff:1fdf:5129
31.223.81.42 0:0:0:0:0:ffff:1fdf:512a
31.223.81.43 0:0:0:0:0:ffff:1fdf:512b
31.223.81.44 0:0:0:0:0:ffff:1fdf:512c
31.223.81.45 0:0:0:0:0:ffff:1fdf:512d
31.223.81.46 0:0:0:0:0:ffff:1fdf:512e
31.223.81.47 0:0:0:0:0:ffff:1fdf:512f
31.223.81.48 0:0:0:0:0:ffff:1fdf:5130
31.223.81.49 0:0:0:0:0:ffff:1fdf:5131
31.223.81.50 0:0:0:0:0:ffff:1fdf:5132
31.223.81.51 0:0:0:0:0:ffff:1fdf:5133
31.223.81.52 0:0:0:0:0:ffff:1fdf:5134
31.223.81.53 0:0:0:0:0:ffff:1fdf:5135
31.223.81.54 0:0:0:0:0:ffff:1fdf:5136
31.223.81.55 0:0:0:0:0:ffff:1fdf:5137
31.223.81.56 0:0:0:0:0:ffff:1fdf:5138
31.223.81.57 0:0:0:0:0:ffff:1fdf:5139
31.223.81.58 0:0:0:0:0:ffff:1fdf:513a
31.223.81.59 0:0:0:0:0:ffff:1fdf:513b
31.223.81.60 0:0:0:0:0:ffff:1fdf:513c


31.223.81.61 0:0:0:0:0:ffff:1fdf:513d
31.223.81.62 0:0:0:0:0:ffff:1fdf:513e
31.223.81.63 0:0:0:0:0:ffff:1fdf:513f
31.223.81.64 0:0:0:0:0:ffff:1fdf:5140
31.223.81.65 0:0:0:0:0:ffff:1fdf:5141
31.223.81.66 0:0:0:0:0:ffff:1fdf:5142
31.223.81.67 0:0:0:0:0:ffff:1fdf:5143
31.223.81.68 0:0:0:0:0:ffff:1fdf:5144
31.223.81.69 0:0:0:0:0:ffff:1fdf:5145
31.223.81.70 0:0:0:0:0:ffff:1fdf:5146
31.223.81.71 0:0:0:0:0:ffff:1fdf:5147
31.223.81.72 0:0:0:0:0:ffff:1fdf:5148
31.223.81.73 0:0:0:0:0:ffff:1fdf:5149
31.223.81.74 0:0:0:0:0:ffff:1fdf:514a
31.223.81.75 0:0:0:0:0:ffff:1fdf:514b
31.223.81.76 0:0:0:0:0:ffff:1fdf:514c
31.223.81.77 0:0:0:0:0:ffff:1fdf:514d
31.223.81.78 0:0:0:0:0:ffff:1fdf:514e
31.223.81.79 0:0:0:0:0:ffff:1fdf:514f
31.223.81.80 0:0:0:0:0:ffff:1fdf:5150
31.223.81.81 0:0:0:0:0:ffff:1fdf:5151
31.223.81.82 0:0:0:0:0:ffff:1fdf:5152
31.223.81.83 0:0:0:0:0:ffff:1fdf:5153
31.223.81.84 0:0:0:0:0:ffff:1fdf:5154
31.223.81.85 0:0:0:0:0:ffff:1fdf:5155
31.223.81.86 0:0:0:0:0:ffff:1fdf:5156
31.223.81.87 0:0:0:0:0:ffff:1fdf:5157
31.223.81.88 0:0:0:0:0:ffff:1fdf:5158
31.223.81.89 0:0:0:0:0:ffff:1fdf:5159
31.223.81.90 0:0:0:0:0:ffff:1fdf:515a
31.223.81.91 0:0:0:0:0:ffff:1fdf:515b
31.223.81.92 0:0:0:0:0:ffff:1fdf:515c
31.223.81.93 0:0:0:0:0:ffff:1fdf:515d
31.223.81.94 0:0:0:0:0:ffff:1fdf:515e
31.223.81.95 0:0:0:0:0:ffff:1fdf:515f
31.223.81.96 0:0:0:0:0:ffff:1fdf:5160
31.223.81.97 0:0:0:0:0:ffff:1fdf:5161
31.223.81.98 0:0:0:0:0:ffff:1fdf:5162
31.223.81.99 0:0:0:0:0:ffff:1fdf:5163
31.223.81.100 0:0:0:0:0:ffff:1fdf:5164
31.223.81.101 0:0:0:0:0:ffff:1fdf:5165
31.223.81.102 0:0:0:0:0:ffff:1fdf:5166
31.223.81.103 0:0:0:0:0:ffff:1fdf:5167
31.223.81.104 0:0:0:0:0:ffff:1fdf:5168
31.223.81.105 0:0:0:0:0:ffff:1fdf:5169
31.223.81.106 0:0:0:0:0:ffff:1fdf:516a
31.223.81.107 0:0:0:0:0:ffff:1fdf:516b
31.223.81.108 0:0:0:0:0:ffff:1fdf:516c
31.223.81.109 0:0:0:0:0:ffff:1fdf:516d
31.223.81.110 0:0:0:0:0:ffff:1fdf:516e
31.223.81.111 0:0:0:0:0:ffff:1fdf:516f
31.223.81.112 0:0:0:0:0:ffff:1fdf:5170
31.223.81.113 0:0:0:0:0:ffff:1fdf:5171
31.223.81.114 0:0:0:0:0:ffff:1fdf:5172
31.223.81.115 0:0:0:0:0:ffff:1fdf:5173
31.223.81.116 0:0:0:0:0:ffff:1fdf:5174
31.223.81.117 0:0:0:0:0:ffff:1fdf:5175
31.223.81.118 0:0:0:0:0:ffff:1fdf:5176
31.223.81.119 0:0:0:0:0:ffff:1fdf:5177
31.223.81.120 0:0:0:0:0:ffff:1fdf:5178


31.223.81.121 0:0:0:0:0:ffff:1fdf:5179
31.223.81.122 0:0:0:0:0:ffff:1fdf:517a
31.223.81.123 0:0:0:0:0:ffff:1fdf:517b
31.223.81.124 0:0:0:0:0:ffff:1fdf:517c
31.223.81.125 0:0:0:0:0:ffff:1fdf:517d
31.223.81.126 0:0:0:0:0:ffff:1fdf:517e
31.223.81.127 0:0:0:0:0:ffff:1fdf:517f
31.223.81.128 0:0:0:0:0:ffff:1fdf:5180
31.223.81.129 0:0:0:0:0:ffff:1fdf:5181
31.223.81.130 0:0:0:0:0:ffff:1fdf:5182
31.223.81.131 0:0:0:0:0:ffff:1fdf:5183
31.223.81.132 0:0:0:0:0:ffff:1fdf:5184
31.223.81.133 0:0:0:0:0:ffff:1fdf:5185
31.223.81.134 0:0:0:0:0:ffff:1fdf:5186
31.223.81.135 0:0:0:0:0:ffff:1fdf:5187
31.223.81.136 0:0:0:0:0:ffff:1fdf:5188
31.223.81.137 0:0:0:0:0:ffff:1fdf:5189
31.223.81.138 0:0:0:0:0:ffff:1fdf:518a
31.223.81.139 0:0:0:0:0:ffff:1fdf:518b
31.223.81.140 0:0:0:0:0:ffff:1fdf:518c
31.223.81.141 0:0:0:0:0:ffff:1fdf:518d
31.223.81.142 0:0:0:0:0:ffff:1fdf:518e
31.223.81.143 0:0:0:0:0:ffff:1fdf:518f
31.223.81.144 0:0:0:0:0:ffff:1fdf:5190
31.223.81.145 0:0:0:0:0:ffff:1fdf:5191
31.223.81.146 0:0:0:0:0:ffff:1fdf:5192
31.223.81.147 0:0:0:0:0:ffff:1fdf:5193
31.223.81.148 0:0:0:0:0:ffff:1fdf:5194
31.223.81.149 0:0:0:0:0:ffff:1fdf:5195
31.223.81.150 0:0:0:0:0:ffff:1fdf:5196
31.223.81.151 0:0:0:0:0:ffff:1fdf:5197
31.223.81.152 0:0:0:0:0:ffff:1fdf:5198
31.223.81.153 0:0:0:0:0:ffff:1fdf:5199
31.223.81.154 0:0:0:0:0:ffff:1fdf:519a
31.223.81.155 0:0:0:0:0:ffff:1fdf:519b
31.223.81.156 0:0:0:0:0:ffff:1fdf:519c
31.223.81.157 0:0:0:0:0:ffff:1fdf:519d
31.223.81.158 0:0:0:0:0:ffff:1fdf:519e
31.223.81.159 0:0:0:0:0:ffff:1fdf:519f
31.223.81.160 0:0:0:0:0:ffff:1fdf:51a0
31.223.81.161 0:0:0:0:0:ffff:1fdf:51a1
31.223.81.162 0:0:0:0:0:ffff:1fdf:51a2
31.223.81.163 0:0:0:0:0:ffff:1fdf:51a3
31.223.81.164 0:0:0:0:0:ffff:1fdf:51a4
31.223.81.165 0:0:0:0:0:ffff:1fdf:51a5
31.223.81.166 0:0:0:0:0:ffff:1fdf:51a6
31.223.81.167 0:0:0:0:0:ffff:1fdf:51a7
31.223.81.168 0:0:0:0:0:ffff:1fdf:51a8
31.223.81.169 0:0:0:0:0:ffff:1fdf:51a9
31.223.81.170 0:0:0:0:0:ffff:1fdf:51aa
31.223.81.171 0:0:0:0:0:ffff:1fdf:51ab
31.223.81.172 0:0:0:0:0:ffff:1fdf:51ac
31.223.81.173 0:0:0:0:0:ffff:1fdf:51ad
31.223.81.174 0:0:0:0:0:ffff:1fdf:51ae
31.223.81.175 0:0:0:0:0:ffff:1fdf:51af
31.223.81.176 0:0:0:0:0:ffff:1fdf:51b0
31.223.81.177 0:0:0:0:0:ffff:1fdf:51b1
31.223.81.178 0:0:0:0:0:ffff:1fdf:51b2
31.223.81.179 0:0:0:0:0:ffff:1fdf:51b3
31.223.81.180 0:0:0:0:0:ffff:1fdf:51b4


31.223.81.181 0:0:0:0:0:ffff:1fdf:51b5
31.223.81.182 0:0:0:0:0:ffff:1fdf:51b6
31.223.81.183 0:0:0:0:0:ffff:1fdf:51b7
31.223.81.184 0:0:0:0:0:ffff:1fdf:51b8
31.223.81.185 0:0:0:0:0:ffff:1fdf:51b9
31.223.81.186 0:0:0:0:0:ffff:1fdf:51ba
31.223.81.187 0:0:0:0:0:ffff:1fdf:51bb
31.223.81.188 0:0:0:0:0:ffff:1fdf:51bc
31.223.81.189 0:0:0:0:0:ffff:1fdf:51bd
31.223.81.190 0:0:0:0:0:ffff:1fdf:51be
31.223.81.191 0:0:0:0:0:ffff:1fdf:51bf
31.223.81.192 0:0:0:0:0:ffff:1fdf:51c0
31.223.81.193 0:0:0:0:0:ffff:1fdf:51c1
31.223.81.194 0:0:0:0:0:ffff:1fdf:51c2
31.223.81.195 0:0:0:0:0:ffff:1fdf:51c3
31.223.81.196 0:0:0:0:0:ffff:1fdf:51c4
31.223.81.197 0:0:0:0:0:ffff:1fdf:51c5
31.223.81.198 0:0:0:0:0:ffff:1fdf:51c6
31.223.81.199 0:0:0:0:0:ffff:1fdf:51c7
31.223.81.200 0:0:0:0:0:ffff:1fdf:51c8
31.223.81.201 0:0:0:0:0:ffff:1fdf:51c9
31.223.81.202 0:0:0:0:0:ffff:1fdf:51ca
31.223.81.203 0:0:0:0:0:ffff:1fdf:51cb
31.223.81.204 0:0:0:0:0:ffff:1fdf:51cc
31.223.81.205 0:0:0:0:0:ffff:1fdf:51cd
31.223.81.206 0:0:0:0:0:ffff:1fdf:51ce
31.223.81.207 0:0:0:0:0:ffff:1fdf:51cf
31.223.81.208 0:0:0:0:0:ffff:1fdf:51d0
31.223.81.209 0:0:0:0:0:ffff:1fdf:51d1
31.223.81.210 0:0:0:0:0:ffff:1fdf:51d2
31.223.81.211 0:0:0:0:0:ffff:1fdf:51d3
31.223.81.212 0:0:0:0:0:ffff:1fdf:51d4
31.223.81.213 0:0:0:0:0:ffff:1fdf:51d5
31.223.81.214 0:0:0:0:0:ffff:1fdf:51d6
31.223.81.215 0:0:0:0:0:ffff:1fdf:51d7
31.223.81.216 0:0:0:0:0:ffff:1fdf:51d8
31.223.81.217 0:0:0:0:0:ffff:1fdf:51d9
31.223.81.218 0:0:0:0:0:ffff:1fdf:51da
31.223.81.219 0:0:0:0:0:ffff:1fdf:51db
31.223.81.220 0:0:0:0:0:ffff:1fdf:51dc
31.223.81.221 0:0:0:0:0:ffff:1fdf:51dd
31.223.81.222 0:0:0:0:0:ffff:1fdf:51de
31.223.81.223 0:0:0:0:0:ffff:1fdf:51df
31.223.81.224 0:0:0:0:0:ffff:1fdf:51e0
31.223.81.225 0:0:0:0:0:ffff:1fdf:51e1
31.223.81.226 0:0:0:0:0:ffff:1fdf:51e2
31.223.81.227 0:0:0:0:0:ffff:1fdf:51e3
31.223.81.228 0:0:0:0:0:ffff:1fdf:51e4
31.223.81.229 0:0:0:0:0:ffff:1fdf:51e5
31.223.81.230 0:0:0:0:0:ffff:1fdf:51e6
31.223.81.231 0:0:0:0:0:ffff:1fdf:51e7
31.223.81.232 0:0:0:0:0:ffff:1fdf:51e8
31.223.81.233 0:0:0:0:0:ffff:1fdf:51e9
31.223.81.234 0:0:0:0:0:ffff:1fdf:51ea
31.223.81.235 0:0:0:0:0:ffff:1fdf:51eb
31.223.81.236 0:0:0:0:0:ffff:1fdf:51ec
31.223.81.237 0:0:0:0:0:ffff:1fdf:51ed
31.223.81.238 0:0:0:0:0:ffff:1fdf:51ee
31.223.81.239 0:0:0:0:0:ffff:1fdf:51ef
31.223.81.240 0:0:0:0:0:ffff:1fdf:51f0
31.223.81.241 0:0:0:0:0:ffff:1fdf:51f1
31.223.81.242 0:0:0:0:0:ffff:1fdf:51f2
31.223.81.243 0:0:0:0:0:ffff:1fdf:51f3
31.223.81.244 0:0:0:0:0:ffff:1fdf:51f4
31.223.81.245 0:0:0:0:0:ffff:1fdf:51f5
31.223.81.246 0:0:0:0:0:ffff:1fdf:51f6
31.223.81.247 0:0:0:0:0:ffff:1fdf:51f7
31.223.81.248 0:0:0:0:0:ffff:1fdf:51f8
31.223.81.249 0:0:0:0:0:ffff:1fdf:51f9
31.223.81.250 0:0:0:0:0:ffff:1fdf:51fa
31.223.81.251 0:0:0:0:0:ffff:1fdf:51fb
31.223.81.252 0:0:0:0:0:ffff:1fdf:51fc
31.223.81.253 0:0:0:0:0:ffff:1fdf:51fd
31.223.81.254 0:0:0:0:0:ffff:1fdf:51fe
31.223.81.255 0:0:0:0:0:ffff:1fdf:51ff


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.