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
71.137.145.1 0:0:0:0:0:ffff:4789:9101
71.137.145.2 0:0:0:0:0:ffff:4789:9102
71.137.145.3 0:0:0:0:0:ffff:4789:9103
71.137.145.4 0:0:0:0:0:ffff:4789:9104
71.137.145.5 0:0:0:0:0:ffff:4789:9105
71.137.145.6 0:0:0:0:0:ffff:4789:9106
71.137.145.7 0:0:0:0:0:ffff:4789:9107
71.137.145.8 0:0:0:0:0:ffff:4789:9108
71.137.145.9 0:0:0:0:0:ffff:4789:9109
71.137.145.10 0:0:0:0:0:ffff:4789:910a
71.137.145.11 0:0:0:0:0:ffff:4789:910b
71.137.145.12 0:0:0:0:0:ffff:4789:910c
71.137.145.13 0:0:0:0:0:ffff:4789:910d
71.137.145.14 0:0:0:0:0:ffff:4789:910e
71.137.145.15 0:0:0:0:0:ffff:4789:910f
71.137.145.16 0:0:0:0:0:ffff:4789:9110
71.137.145.17 0:0:0:0:0:ffff:4789:9111
71.137.145.18 0:0:0:0:0:ffff:4789:9112
71.137.145.19 0:0:0:0:0:ffff:4789:9113
71.137.145.20 0:0:0:0:0:ffff:4789:9114
71.137.145.21 0:0:0:0:0:ffff:4789:9115
71.137.145.22 0:0:0:0:0:ffff:4789:9116
71.137.145.23 0:0:0:0:0:ffff:4789:9117
71.137.145.24 0:0:0:0:0:ffff:4789:9118
71.137.145.25 0:0:0:0:0:ffff:4789:9119
71.137.145.26 0:0:0:0:0:ffff:4789:911a
71.137.145.27 0:0:0:0:0:ffff:4789:911b
71.137.145.28 0:0:0:0:0:ffff:4789:911c
71.137.145.29 0:0:0:0:0:ffff:4789:911d
71.137.145.30 0:0:0:0:0:ffff:4789:911e
71.137.145.31 0:0:0:0:0:ffff:4789:911f
71.137.145.32 0:0:0:0:0:ffff:4789:9120
71.137.145.33 0:0:0:0:0:ffff:4789:9121
71.137.145.34 0:0:0:0:0:ffff:4789:9122
71.137.145.35 0:0:0:0:0:ffff:4789:9123
71.137.145.36 0:0:0:0:0:ffff:4789:9124
71.137.145.37 0:0:0:0:0:ffff:4789:9125
71.137.145.38 0:0:0:0:0:ffff:4789:9126
71.137.145.39 0:0:0:0:0:ffff:4789:9127
71.137.145.40 0:0:0:0:0:ffff:4789:9128
71.137.145.41 0:0:0:0:0:ffff:4789:9129
71.137.145.42 0:0:0:0:0:ffff:4789:912a
71.137.145.43 0:0:0:0:0:ffff:4789:912b
71.137.145.44 0:0:0:0:0:ffff:4789:912c
71.137.145.45 0:0:0:0:0:ffff:4789:912d
71.137.145.46 0:0:0:0:0:ffff:4789:912e
71.137.145.47 0:0:0:0:0:ffff:4789:912f
71.137.145.48 0:0:0:0:0:ffff:4789:9130
71.137.145.49 0:0:0:0:0:ffff:4789:9131
71.137.145.50 0:0:0:0:0:ffff:4789:9132
71.137.145.51 0:0:0:0:0:ffff:4789:9133
71.137.145.52 0:0:0:0:0:ffff:4789:9134
71.137.145.53 0:0:0:0:0:ffff:4789:9135
71.137.145.54 0:0:0:0:0:ffff:4789:9136
71.137.145.55 0:0:0:0:0:ffff:4789:9137
71.137.145.56 0:0:0:0:0:ffff:4789:9138
71.137.145.57 0:0:0:0:0:ffff:4789:9139
71.137.145.58 0:0:0:0:0:ffff:4789:913a
71.137.145.59 0:0:0:0:0:ffff:4789:913b
71.137.145.60 0:0:0:0:0:ffff:4789:913c


71.137.145.61 0:0:0:0:0:ffff:4789:913d
71.137.145.62 0:0:0:0:0:ffff:4789:913e
71.137.145.63 0:0:0:0:0:ffff:4789:913f
71.137.145.64 0:0:0:0:0:ffff:4789:9140
71.137.145.65 0:0:0:0:0:ffff:4789:9141
71.137.145.66 0:0:0:0:0:ffff:4789:9142
71.137.145.67 0:0:0:0:0:ffff:4789:9143
71.137.145.68 0:0:0:0:0:ffff:4789:9144
71.137.145.69 0:0:0:0:0:ffff:4789:9145
71.137.145.70 0:0:0:0:0:ffff:4789:9146
71.137.145.71 0:0:0:0:0:ffff:4789:9147
71.137.145.72 0:0:0:0:0:ffff:4789:9148
71.137.145.73 0:0:0:0:0:ffff:4789:9149
71.137.145.74 0:0:0:0:0:ffff:4789:914a
71.137.145.75 0:0:0:0:0:ffff:4789:914b
71.137.145.76 0:0:0:0:0:ffff:4789:914c
71.137.145.77 0:0:0:0:0:ffff:4789:914d
71.137.145.78 0:0:0:0:0:ffff:4789:914e
71.137.145.79 0:0:0:0:0:ffff:4789:914f
71.137.145.80 0:0:0:0:0:ffff:4789:9150
71.137.145.81 0:0:0:0:0:ffff:4789:9151
71.137.145.82 0:0:0:0:0:ffff:4789:9152
71.137.145.83 0:0:0:0:0:ffff:4789:9153
71.137.145.84 0:0:0:0:0:ffff:4789:9154
71.137.145.85 0:0:0:0:0:ffff:4789:9155
71.137.145.86 0:0:0:0:0:ffff:4789:9156
71.137.145.87 0:0:0:0:0:ffff:4789:9157
71.137.145.88 0:0:0:0:0:ffff:4789:9158
71.137.145.89 0:0:0:0:0:ffff:4789:9159
71.137.145.90 0:0:0:0:0:ffff:4789:915a
71.137.145.91 0:0:0:0:0:ffff:4789:915b
71.137.145.92 0:0:0:0:0:ffff:4789:915c
71.137.145.93 0:0:0:0:0:ffff:4789:915d
71.137.145.94 0:0:0:0:0:ffff:4789:915e
71.137.145.95 0:0:0:0:0:ffff:4789:915f
71.137.145.96 0:0:0:0:0:ffff:4789:9160
71.137.145.97 0:0:0:0:0:ffff:4789:9161
71.137.145.98 0:0:0:0:0:ffff:4789:9162
71.137.145.99 0:0:0:0:0:ffff:4789:9163
71.137.145.100 0:0:0:0:0:ffff:4789:9164
71.137.145.101 0:0:0:0:0:ffff:4789:9165
71.137.145.102 0:0:0:0:0:ffff:4789:9166
71.137.145.103 0:0:0:0:0:ffff:4789:9167
71.137.145.104 0:0:0:0:0:ffff:4789:9168
71.137.145.105 0:0:0:0:0:ffff:4789:9169
71.137.145.106 0:0:0:0:0:ffff:4789:916a
71.137.145.107 0:0:0:0:0:ffff:4789:916b
71.137.145.108 0:0:0:0:0:ffff:4789:916c
71.137.145.109 0:0:0:0:0:ffff:4789:916d
71.137.145.110 0:0:0:0:0:ffff:4789:916e
71.137.145.111 0:0:0:0:0:ffff:4789:916f
71.137.145.112 0:0:0:0:0:ffff:4789:9170
71.137.145.113 0:0:0:0:0:ffff:4789:9171
71.137.145.114 0:0:0:0:0:ffff:4789:9172
71.137.145.115 0:0:0:0:0:ffff:4789:9173
71.137.145.116 0:0:0:0:0:ffff:4789:9174
71.137.145.117 0:0:0:0:0:ffff:4789:9175
71.137.145.118 0:0:0:0:0:ffff:4789:9176
71.137.145.119 0:0:0:0:0:ffff:4789:9177
71.137.145.120 0:0:0:0:0:ffff:4789:9178


71.137.145.121 0:0:0:0:0:ffff:4789:9179
71.137.145.122 0:0:0:0:0:ffff:4789:917a
71.137.145.123 0:0:0:0:0:ffff:4789:917b
71.137.145.124 0:0:0:0:0:ffff:4789:917c
71.137.145.125 0:0:0:0:0:ffff:4789:917d
71.137.145.126 0:0:0:0:0:ffff:4789:917e
71.137.145.127 0:0:0:0:0:ffff:4789:917f
71.137.145.128 0:0:0:0:0:ffff:4789:9180
71.137.145.129 0:0:0:0:0:ffff:4789:9181
71.137.145.130 0:0:0:0:0:ffff:4789:9182
71.137.145.131 0:0:0:0:0:ffff:4789:9183
71.137.145.132 0:0:0:0:0:ffff:4789:9184
71.137.145.133 0:0:0:0:0:ffff:4789:9185
71.137.145.134 0:0:0:0:0:ffff:4789:9186
71.137.145.135 0:0:0:0:0:ffff:4789:9187
71.137.145.136 0:0:0:0:0:ffff:4789:9188
71.137.145.137 0:0:0:0:0:ffff:4789:9189
71.137.145.138 0:0:0:0:0:ffff:4789:918a
71.137.145.139 0:0:0:0:0:ffff:4789:918b
71.137.145.140 0:0:0:0:0:ffff:4789:918c
71.137.145.141 0:0:0:0:0:ffff:4789:918d
71.137.145.142 0:0:0:0:0:ffff:4789:918e
71.137.145.143 0:0:0:0:0:ffff:4789:918f
71.137.145.144 0:0:0:0:0:ffff:4789:9190
71.137.145.145 0:0:0:0:0:ffff:4789:9191
71.137.145.146 0:0:0:0:0:ffff:4789:9192
71.137.145.147 0:0:0:0:0:ffff:4789:9193
71.137.145.148 0:0:0:0:0:ffff:4789:9194
71.137.145.149 0:0:0:0:0:ffff:4789:9195
71.137.145.150 0:0:0:0:0:ffff:4789:9196
71.137.145.151 0:0:0:0:0:ffff:4789:9197
71.137.145.152 0:0:0:0:0:ffff:4789:9198
71.137.145.153 0:0:0:0:0:ffff:4789:9199
71.137.145.154 0:0:0:0:0:ffff:4789:919a
71.137.145.155 0:0:0:0:0:ffff:4789:919b
71.137.145.156 0:0:0:0:0:ffff:4789:919c
71.137.145.157 0:0:0:0:0:ffff:4789:919d
71.137.145.158 0:0:0:0:0:ffff:4789:919e
71.137.145.159 0:0:0:0:0:ffff:4789:919f
71.137.145.160 0:0:0:0:0:ffff:4789:91a0
71.137.145.161 0:0:0:0:0:ffff:4789:91a1
71.137.145.162 0:0:0:0:0:ffff:4789:91a2
71.137.145.163 0:0:0:0:0:ffff:4789:91a3
71.137.145.164 0:0:0:0:0:ffff:4789:91a4
71.137.145.165 0:0:0:0:0:ffff:4789:91a5
71.137.145.166 0:0:0:0:0:ffff:4789:91a6
71.137.145.167 0:0:0:0:0:ffff:4789:91a7
71.137.145.168 0:0:0:0:0:ffff:4789:91a8
71.137.145.169 0:0:0:0:0:ffff:4789:91a9
71.137.145.170 0:0:0:0:0:ffff:4789:91aa
71.137.145.171 0:0:0:0:0:ffff:4789:91ab
71.137.145.172 0:0:0:0:0:ffff:4789:91ac
71.137.145.173 0:0:0:0:0:ffff:4789:91ad
71.137.145.174 0:0:0:0:0:ffff:4789:91ae
71.137.145.175 0:0:0:0:0:ffff:4789:91af
71.137.145.176 0:0:0:0:0:ffff:4789:91b0
71.137.145.177 0:0:0:0:0:ffff:4789:91b1
71.137.145.178 0:0:0:0:0:ffff:4789:91b2
71.137.145.179 0:0:0:0:0:ffff:4789:91b3
71.137.145.180 0:0:0:0:0:ffff:4789:91b4


71.137.145.181 0:0:0:0:0:ffff:4789:91b5
71.137.145.182 0:0:0:0:0:ffff:4789:91b6
71.137.145.183 0:0:0:0:0:ffff:4789:91b7
71.137.145.184 0:0:0:0:0:ffff:4789:91b8
71.137.145.185 0:0:0:0:0:ffff:4789:91b9
71.137.145.186 0:0:0:0:0:ffff:4789:91ba
71.137.145.187 0:0:0:0:0:ffff:4789:91bb
71.137.145.188 0:0:0:0:0:ffff:4789:91bc
71.137.145.189 0:0:0:0:0:ffff:4789:91bd
71.137.145.190 0:0:0:0:0:ffff:4789:91be
71.137.145.191 0:0:0:0:0:ffff:4789:91bf
71.137.145.192 0:0:0:0:0:ffff:4789:91c0
71.137.145.193 0:0:0:0:0:ffff:4789:91c1
71.137.145.194 0:0:0:0:0:ffff:4789:91c2
71.137.145.195 0:0:0:0:0:ffff:4789:91c3
71.137.145.196 0:0:0:0:0:ffff:4789:91c4
71.137.145.197 0:0:0:0:0:ffff:4789:91c5
71.137.145.198 0:0:0:0:0:ffff:4789:91c6
71.137.145.199 0:0:0:0:0:ffff:4789:91c7
71.137.145.200 0:0:0:0:0:ffff:4789:91c8
71.137.145.201 0:0:0:0:0:ffff:4789:91c9
71.137.145.202 0:0:0:0:0:ffff:4789:91ca
71.137.145.203 0:0:0:0:0:ffff:4789:91cb
71.137.145.204 0:0:0:0:0:ffff:4789:91cc
71.137.145.205 0:0:0:0:0:ffff:4789:91cd
71.137.145.206 0:0:0:0:0:ffff:4789:91ce
71.137.145.207 0:0:0:0:0:ffff:4789:91cf
71.137.145.208 0:0:0:0:0:ffff:4789:91d0
71.137.145.209 0:0:0:0:0:ffff:4789:91d1
71.137.145.210 0:0:0:0:0:ffff:4789:91d2
71.137.145.211 0:0:0:0:0:ffff:4789:91d3
71.137.145.212 0:0:0:0:0:ffff:4789:91d4
71.137.145.213 0:0:0:0:0:ffff:4789:91d5
71.137.145.214 0:0:0:0:0:ffff:4789:91d6
71.137.145.215 0:0:0:0:0:ffff:4789:91d7
71.137.145.216 0:0:0:0:0:ffff:4789:91d8
71.137.145.217 0:0:0:0:0:ffff:4789:91d9
71.137.145.218 0:0:0:0:0:ffff:4789:91da
71.137.145.219 0:0:0:0:0:ffff:4789:91db
71.137.145.220 0:0:0:0:0:ffff:4789:91dc
71.137.145.221 0:0:0:0:0:ffff:4789:91dd
71.137.145.222 0:0:0:0:0:ffff:4789:91de
71.137.145.223 0:0:0:0:0:ffff:4789:91df
71.137.145.224 0:0:0:0:0:ffff:4789:91e0
71.137.145.225 0:0:0:0:0:ffff:4789:91e1
71.137.145.226 0:0:0:0:0:ffff:4789:91e2
71.137.145.227 0:0:0:0:0:ffff:4789:91e3
71.137.145.228 0:0:0:0:0:ffff:4789:91e4
71.137.145.229 0:0:0:0:0:ffff:4789:91e5
71.137.145.230 0:0:0:0:0:ffff:4789:91e6
71.137.145.231 0:0:0:0:0:ffff:4789:91e7
71.137.145.232 0:0:0:0:0:ffff:4789:91e8
71.137.145.233 0:0:0:0:0:ffff:4789:91e9
71.137.145.234 0:0:0:0:0:ffff:4789:91ea
71.137.145.235 0:0:0:0:0:ffff:4789:91eb
71.137.145.236 0:0:0:0:0:ffff:4789:91ec
71.137.145.237 0:0:0:0:0:ffff:4789:91ed
71.137.145.238 0:0:0:0:0:ffff:4789:91ee
71.137.145.239 0:0:0:0:0:ffff:4789:91ef
71.137.145.240 0:0:0:0:0:ffff:4789:91f0
71.137.145.241 0:0:0:0:0:ffff:4789:91f1
71.137.145.242 0:0:0:0:0:ffff:4789:91f2
71.137.145.243 0:0:0:0:0:ffff:4789:91f3
71.137.145.244 0:0:0:0:0:ffff:4789:91f4
71.137.145.245 0:0:0:0:0:ffff:4789:91f5
71.137.145.246 0:0:0:0:0:ffff:4789:91f6
71.137.145.247 0:0:0:0:0:ffff:4789:91f7
71.137.145.248 0:0:0:0:0:ffff:4789:91f8
71.137.145.249 0:0:0:0:0:ffff:4789:91f9
71.137.145.250 0:0:0:0:0:ffff:4789:91fa
71.137.145.251 0:0:0:0:0:ffff:4789:91fb
71.137.145.252 0:0:0:0:0:ffff:4789:91fc
71.137.145.253 0:0:0:0:0:ffff:4789:91fd
71.137.145.254 0:0:0:0:0:ffff:4789:91fe
71.137.145.255 0:0:0:0:0:ffff:4789:91ff


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.