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
10.131.81.1 0:0:0:0:0:ffff:a83:5101
10.131.81.2 0:0:0:0:0:ffff:a83:5102
10.131.81.3 0:0:0:0:0:ffff:a83:5103
10.131.81.4 0:0:0:0:0:ffff:a83:5104
10.131.81.5 0:0:0:0:0:ffff:a83:5105
10.131.81.6 0:0:0:0:0:ffff:a83:5106
10.131.81.7 0:0:0:0:0:ffff:a83:5107
10.131.81.8 0:0:0:0:0:ffff:a83:5108
10.131.81.9 0:0:0:0:0:ffff:a83:5109
10.131.81.10 0:0:0:0:0:ffff:a83:510a
10.131.81.11 0:0:0:0:0:ffff:a83:510b
10.131.81.12 0:0:0:0:0:ffff:a83:510c
10.131.81.13 0:0:0:0:0:ffff:a83:510d
10.131.81.14 0:0:0:0:0:ffff:a83:510e
10.131.81.15 0:0:0:0:0:ffff:a83:510f
10.131.81.16 0:0:0:0:0:ffff:a83:5110
10.131.81.17 0:0:0:0:0:ffff:a83:5111
10.131.81.18 0:0:0:0:0:ffff:a83:5112
10.131.81.19 0:0:0:0:0:ffff:a83:5113
10.131.81.20 0:0:0:0:0:ffff:a83:5114
10.131.81.21 0:0:0:0:0:ffff:a83:5115
10.131.81.22 0:0:0:0:0:ffff:a83:5116
10.131.81.23 0:0:0:0:0:ffff:a83:5117
10.131.81.24 0:0:0:0:0:ffff:a83:5118
10.131.81.25 0:0:0:0:0:ffff:a83:5119
10.131.81.26 0:0:0:0:0:ffff:a83:511a
10.131.81.27 0:0:0:0:0:ffff:a83:511b
10.131.81.28 0:0:0:0:0:ffff:a83:511c
10.131.81.29 0:0:0:0:0:ffff:a83:511d
10.131.81.30 0:0:0:0:0:ffff:a83:511e
10.131.81.31 0:0:0:0:0:ffff:a83:511f
10.131.81.32 0:0:0:0:0:ffff:a83:5120
10.131.81.33 0:0:0:0:0:ffff:a83:5121
10.131.81.34 0:0:0:0:0:ffff:a83:5122
10.131.81.35 0:0:0:0:0:ffff:a83:5123
10.131.81.36 0:0:0:0:0:ffff:a83:5124
10.131.81.37 0:0:0:0:0:ffff:a83:5125
10.131.81.38 0:0:0:0:0:ffff:a83:5126
10.131.81.39 0:0:0:0:0:ffff:a83:5127
10.131.81.40 0:0:0:0:0:ffff:a83:5128
10.131.81.41 0:0:0:0:0:ffff:a83:5129
10.131.81.42 0:0:0:0:0:ffff:a83:512a
10.131.81.43 0:0:0:0:0:ffff:a83:512b
10.131.81.44 0:0:0:0:0:ffff:a83:512c
10.131.81.45 0:0:0:0:0:ffff:a83:512d
10.131.81.46 0:0:0:0:0:ffff:a83:512e
10.131.81.47 0:0:0:0:0:ffff:a83:512f
10.131.81.48 0:0:0:0:0:ffff:a83:5130
10.131.81.49 0:0:0:0:0:ffff:a83:5131
10.131.81.50 0:0:0:0:0:ffff:a83:5132
10.131.81.51 0:0:0:0:0:ffff:a83:5133
10.131.81.52 0:0:0:0:0:ffff:a83:5134
10.131.81.53 0:0:0:0:0:ffff:a83:5135
10.131.81.54 0:0:0:0:0:ffff:a83:5136
10.131.81.55 0:0:0:0:0:ffff:a83:5137
10.131.81.56 0:0:0:0:0:ffff:a83:5138
10.131.81.57 0:0:0:0:0:ffff:a83:5139
10.131.81.58 0:0:0:0:0:ffff:a83:513a
10.131.81.59 0:0:0:0:0:ffff:a83:513b
10.131.81.60 0:0:0:0:0:ffff:a83:513c


10.131.81.61 0:0:0:0:0:ffff:a83:513d
10.131.81.62 0:0:0:0:0:ffff:a83:513e
10.131.81.63 0:0:0:0:0:ffff:a83:513f
10.131.81.64 0:0:0:0:0:ffff:a83:5140
10.131.81.65 0:0:0:0:0:ffff:a83:5141
10.131.81.66 0:0:0:0:0:ffff:a83:5142
10.131.81.67 0:0:0:0:0:ffff:a83:5143
10.131.81.68 0:0:0:0:0:ffff:a83:5144
10.131.81.69 0:0:0:0:0:ffff:a83:5145
10.131.81.70 0:0:0:0:0:ffff:a83:5146
10.131.81.71 0:0:0:0:0:ffff:a83:5147
10.131.81.72 0:0:0:0:0:ffff:a83:5148
10.131.81.73 0:0:0:0:0:ffff:a83:5149
10.131.81.74 0:0:0:0:0:ffff:a83:514a
10.131.81.75 0:0:0:0:0:ffff:a83:514b
10.131.81.76 0:0:0:0:0:ffff:a83:514c
10.131.81.77 0:0:0:0:0:ffff:a83:514d
10.131.81.78 0:0:0:0:0:ffff:a83:514e
10.131.81.79 0:0:0:0:0:ffff:a83:514f
10.131.81.80 0:0:0:0:0:ffff:a83:5150
10.131.81.81 0:0:0:0:0:ffff:a83:5151
10.131.81.82 0:0:0:0:0:ffff:a83:5152
10.131.81.83 0:0:0:0:0:ffff:a83:5153
10.131.81.84 0:0:0:0:0:ffff:a83:5154
10.131.81.85 0:0:0:0:0:ffff:a83:5155
10.131.81.86 0:0:0:0:0:ffff:a83:5156
10.131.81.87 0:0:0:0:0:ffff:a83:5157
10.131.81.88 0:0:0:0:0:ffff:a83:5158
10.131.81.89 0:0:0:0:0:ffff:a83:5159
10.131.81.90 0:0:0:0:0:ffff:a83:515a
10.131.81.91 0:0:0:0:0:ffff:a83:515b
10.131.81.92 0:0:0:0:0:ffff:a83:515c
10.131.81.93 0:0:0:0:0:ffff:a83:515d
10.131.81.94 0:0:0:0:0:ffff:a83:515e
10.131.81.95 0:0:0:0:0:ffff:a83:515f
10.131.81.96 0:0:0:0:0:ffff:a83:5160
10.131.81.97 0:0:0:0:0:ffff:a83:5161
10.131.81.98 0:0:0:0:0:ffff:a83:5162
10.131.81.99 0:0:0:0:0:ffff:a83:5163
10.131.81.100 0:0:0:0:0:ffff:a83:5164
10.131.81.101 0:0:0:0:0:ffff:a83:5165
10.131.81.102 0:0:0:0:0:ffff:a83:5166
10.131.81.103 0:0:0:0:0:ffff:a83:5167
10.131.81.104 0:0:0:0:0:ffff:a83:5168
10.131.81.105 0:0:0:0:0:ffff:a83:5169
10.131.81.106 0:0:0:0:0:ffff:a83:516a
10.131.81.107 0:0:0:0:0:ffff:a83:516b
10.131.81.108 0:0:0:0:0:ffff:a83:516c
10.131.81.109 0:0:0:0:0:ffff:a83:516d
10.131.81.110 0:0:0:0:0:ffff:a83:516e
10.131.81.111 0:0:0:0:0:ffff:a83:516f
10.131.81.112 0:0:0:0:0:ffff:a83:5170
10.131.81.113 0:0:0:0:0:ffff:a83:5171
10.131.81.114 0:0:0:0:0:ffff:a83:5172
10.131.81.115 0:0:0:0:0:ffff:a83:5173
10.131.81.116 0:0:0:0:0:ffff:a83:5174
10.131.81.117 0:0:0:0:0:ffff:a83:5175
10.131.81.118 0:0:0:0:0:ffff:a83:5176
10.131.81.119 0:0:0:0:0:ffff:a83:5177
10.131.81.120 0:0:0:0:0:ffff:a83:5178


10.131.81.121 0:0:0:0:0:ffff:a83:5179
10.131.81.122 0:0:0:0:0:ffff:a83:517a
10.131.81.123 0:0:0:0:0:ffff:a83:517b
10.131.81.124 0:0:0:0:0:ffff:a83:517c
10.131.81.125 0:0:0:0:0:ffff:a83:517d
10.131.81.126 0:0:0:0:0:ffff:a83:517e
10.131.81.127 0:0:0:0:0:ffff:a83:517f
10.131.81.128 0:0:0:0:0:ffff:a83:5180
10.131.81.129 0:0:0:0:0:ffff:a83:5181
10.131.81.130 0:0:0:0:0:ffff:a83:5182
10.131.81.131 0:0:0:0:0:ffff:a83:5183
10.131.81.132 0:0:0:0:0:ffff:a83:5184
10.131.81.133 0:0:0:0:0:ffff:a83:5185
10.131.81.134 0:0:0:0:0:ffff:a83:5186
10.131.81.135 0:0:0:0:0:ffff:a83:5187
10.131.81.136 0:0:0:0:0:ffff:a83:5188
10.131.81.137 0:0:0:0:0:ffff:a83:5189
10.131.81.138 0:0:0:0:0:ffff:a83:518a
10.131.81.139 0:0:0:0:0:ffff:a83:518b
10.131.81.140 0:0:0:0:0:ffff:a83:518c
10.131.81.141 0:0:0:0:0:ffff:a83:518d
10.131.81.142 0:0:0:0:0:ffff:a83:518e
10.131.81.143 0:0:0:0:0:ffff:a83:518f
10.131.81.144 0:0:0:0:0:ffff:a83:5190
10.131.81.145 0:0:0:0:0:ffff:a83:5191
10.131.81.146 0:0:0:0:0:ffff:a83:5192
10.131.81.147 0:0:0:0:0:ffff:a83:5193
10.131.81.148 0:0:0:0:0:ffff:a83:5194
10.131.81.149 0:0:0:0:0:ffff:a83:5195
10.131.81.150 0:0:0:0:0:ffff:a83:5196
10.131.81.151 0:0:0:0:0:ffff:a83:5197
10.131.81.152 0:0:0:0:0:ffff:a83:5198
10.131.81.153 0:0:0:0:0:ffff:a83:5199
10.131.81.154 0:0:0:0:0:ffff:a83:519a
10.131.81.155 0:0:0:0:0:ffff:a83:519b
10.131.81.156 0:0:0:0:0:ffff:a83:519c
10.131.81.157 0:0:0:0:0:ffff:a83:519d
10.131.81.158 0:0:0:0:0:ffff:a83:519e
10.131.81.159 0:0:0:0:0:ffff:a83:519f
10.131.81.160 0:0:0:0:0:ffff:a83:51a0
10.131.81.161 0:0:0:0:0:ffff:a83:51a1
10.131.81.162 0:0:0:0:0:ffff:a83:51a2
10.131.81.163 0:0:0:0:0:ffff:a83:51a3
10.131.81.164 0:0:0:0:0:ffff:a83:51a4
10.131.81.165 0:0:0:0:0:ffff:a83:51a5
10.131.81.166 0:0:0:0:0:ffff:a83:51a6
10.131.81.167 0:0:0:0:0:ffff:a83:51a7
10.131.81.168 0:0:0:0:0:ffff:a83:51a8
10.131.81.169 0:0:0:0:0:ffff:a83:51a9
10.131.81.170 0:0:0:0:0:ffff:a83:51aa
10.131.81.171 0:0:0:0:0:ffff:a83:51ab
10.131.81.172 0:0:0:0:0:ffff:a83:51ac
10.131.81.173 0:0:0:0:0:ffff:a83:51ad
10.131.81.174 0:0:0:0:0:ffff:a83:51ae
10.131.81.175 0:0:0:0:0:ffff:a83:51af
10.131.81.176 0:0:0:0:0:ffff:a83:51b0
10.131.81.177 0:0:0:0:0:ffff:a83:51b1
10.131.81.178 0:0:0:0:0:ffff:a83:51b2
10.131.81.179 0:0:0:0:0:ffff:a83:51b3
10.131.81.180 0:0:0:0:0:ffff:a83:51b4


10.131.81.181 0:0:0:0:0:ffff:a83:51b5
10.131.81.182 0:0:0:0:0:ffff:a83:51b6
10.131.81.183 0:0:0:0:0:ffff:a83:51b7
10.131.81.184 0:0:0:0:0:ffff:a83:51b8
10.131.81.185 0:0:0:0:0:ffff:a83:51b9
10.131.81.186 0:0:0:0:0:ffff:a83:51ba
10.131.81.187 0:0:0:0:0:ffff:a83:51bb
10.131.81.188 0:0:0:0:0:ffff:a83:51bc
10.131.81.189 0:0:0:0:0:ffff:a83:51bd
10.131.81.190 0:0:0:0:0:ffff:a83:51be
10.131.81.191 0:0:0:0:0:ffff:a83:51bf
10.131.81.192 0:0:0:0:0:ffff:a83:51c0
10.131.81.193 0:0:0:0:0:ffff:a83:51c1
10.131.81.194 0:0:0:0:0:ffff:a83:51c2
10.131.81.195 0:0:0:0:0:ffff:a83:51c3
10.131.81.196 0:0:0:0:0:ffff:a83:51c4
10.131.81.197 0:0:0:0:0:ffff:a83:51c5
10.131.81.198 0:0:0:0:0:ffff:a83:51c6
10.131.81.199 0:0:0:0:0:ffff:a83:51c7
10.131.81.200 0:0:0:0:0:ffff:a83:51c8
10.131.81.201 0:0:0:0:0:ffff:a83:51c9
10.131.81.202 0:0:0:0:0:ffff:a83:51ca
10.131.81.203 0:0:0:0:0:ffff:a83:51cb
10.131.81.204 0:0:0:0:0:ffff:a83:51cc
10.131.81.205 0:0:0:0:0:ffff:a83:51cd
10.131.81.206 0:0:0:0:0:ffff:a83:51ce
10.131.81.207 0:0:0:0:0:ffff:a83:51cf
10.131.81.208 0:0:0:0:0:ffff:a83:51d0
10.131.81.209 0:0:0:0:0:ffff:a83:51d1
10.131.81.210 0:0:0:0:0:ffff:a83:51d2
10.131.81.211 0:0:0:0:0:ffff:a83:51d3
10.131.81.212 0:0:0:0:0:ffff:a83:51d4
10.131.81.213 0:0:0:0:0:ffff:a83:51d5
10.131.81.214 0:0:0:0:0:ffff:a83:51d6
10.131.81.215 0:0:0:0:0:ffff:a83:51d7
10.131.81.216 0:0:0:0:0:ffff:a83:51d8
10.131.81.217 0:0:0:0:0:ffff:a83:51d9
10.131.81.218 0:0:0:0:0:ffff:a83:51da
10.131.81.219 0:0:0:0:0:ffff:a83:51db
10.131.81.220 0:0:0:0:0:ffff:a83:51dc
10.131.81.221 0:0:0:0:0:ffff:a83:51dd
10.131.81.222 0:0:0:0:0:ffff:a83:51de
10.131.81.223 0:0:0:0:0:ffff:a83:51df
10.131.81.224 0:0:0:0:0:ffff:a83:51e0
10.131.81.225 0:0:0:0:0:ffff:a83:51e1
10.131.81.226 0:0:0:0:0:ffff:a83:51e2
10.131.81.227 0:0:0:0:0:ffff:a83:51e3
10.131.81.228 0:0:0:0:0:ffff:a83:51e4
10.131.81.229 0:0:0:0:0:ffff:a83:51e5
10.131.81.230 0:0:0:0:0:ffff:a83:51e6
10.131.81.231 0:0:0:0:0:ffff:a83:51e7
10.131.81.232 0:0:0:0:0:ffff:a83:51e8
10.131.81.233 0:0:0:0:0:ffff:a83:51e9
10.131.81.234 0:0:0:0:0:ffff:a83:51ea
10.131.81.235 0:0:0:0:0:ffff:a83:51eb
10.131.81.236 0:0:0:0:0:ffff:a83:51ec
10.131.81.237 0:0:0:0:0:ffff:a83:51ed
10.131.81.238 0:0:0:0:0:ffff:a83:51ee
10.131.81.239 0:0:0:0:0:ffff:a83:51ef
10.131.81.240 0:0:0:0:0:ffff:a83:51f0
10.131.81.241 0:0:0:0:0:ffff:a83:51f1
10.131.81.242 0:0:0:0:0:ffff:a83:51f2
10.131.81.243 0:0:0:0:0:ffff:a83:51f3
10.131.81.244 0:0:0:0:0:ffff:a83:51f4
10.131.81.245 0:0:0:0:0:ffff:a83:51f5
10.131.81.246 0:0:0:0:0:ffff:a83:51f6
10.131.81.247 0:0:0:0:0:ffff:a83:51f7
10.131.81.248 0:0:0:0:0:ffff:a83:51f8
10.131.81.249 0:0:0:0:0:ffff:a83:51f9
10.131.81.250 0:0:0:0:0:ffff:a83:51fa
10.131.81.251 0:0:0:0:0:ffff:a83:51fb
10.131.81.252 0:0:0:0:0:ffff:a83:51fc
10.131.81.253 0:0:0:0:0:ffff:a83:51fd
10.131.81.254 0:0:0:0:0:ffff:a83:51fe
10.131.81.255 0:0:0:0:0:ffff:a83:51ff


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.