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
2.139.145.1 0:0:0:0:0:ffff:28b:9101
2.139.145.2 0:0:0:0:0:ffff:28b:9102
2.139.145.3 0:0:0:0:0:ffff:28b:9103
2.139.145.4 0:0:0:0:0:ffff:28b:9104
2.139.145.5 0:0:0:0:0:ffff:28b:9105
2.139.145.6 0:0:0:0:0:ffff:28b:9106
2.139.145.7 0:0:0:0:0:ffff:28b:9107
2.139.145.8 0:0:0:0:0:ffff:28b:9108
2.139.145.9 0:0:0:0:0:ffff:28b:9109
2.139.145.10 0:0:0:0:0:ffff:28b:910a
2.139.145.11 0:0:0:0:0:ffff:28b:910b
2.139.145.12 0:0:0:0:0:ffff:28b:910c
2.139.145.13 0:0:0:0:0:ffff:28b:910d
2.139.145.14 0:0:0:0:0:ffff:28b:910e
2.139.145.15 0:0:0:0:0:ffff:28b:910f
2.139.145.16 0:0:0:0:0:ffff:28b:9110
2.139.145.17 0:0:0:0:0:ffff:28b:9111
2.139.145.18 0:0:0:0:0:ffff:28b:9112
2.139.145.19 0:0:0:0:0:ffff:28b:9113
2.139.145.20 0:0:0:0:0:ffff:28b:9114
2.139.145.21 0:0:0:0:0:ffff:28b:9115
2.139.145.22 0:0:0:0:0:ffff:28b:9116
2.139.145.23 0:0:0:0:0:ffff:28b:9117
2.139.145.24 0:0:0:0:0:ffff:28b:9118
2.139.145.25 0:0:0:0:0:ffff:28b:9119
2.139.145.26 0:0:0:0:0:ffff:28b:911a
2.139.145.27 0:0:0:0:0:ffff:28b:911b
2.139.145.28 0:0:0:0:0:ffff:28b:911c
2.139.145.29 0:0:0:0:0:ffff:28b:911d
2.139.145.30 0:0:0:0:0:ffff:28b:911e
2.139.145.31 0:0:0:0:0:ffff:28b:911f
2.139.145.32 0:0:0:0:0:ffff:28b:9120
2.139.145.33 0:0:0:0:0:ffff:28b:9121
2.139.145.34 0:0:0:0:0:ffff:28b:9122
2.139.145.35 0:0:0:0:0:ffff:28b:9123
2.139.145.36 0:0:0:0:0:ffff:28b:9124
2.139.145.37 0:0:0:0:0:ffff:28b:9125
2.139.145.38 0:0:0:0:0:ffff:28b:9126
2.139.145.39 0:0:0:0:0:ffff:28b:9127
2.139.145.40 0:0:0:0:0:ffff:28b:9128
2.139.145.41 0:0:0:0:0:ffff:28b:9129
2.139.145.42 0:0:0:0:0:ffff:28b:912a
2.139.145.43 0:0:0:0:0:ffff:28b:912b
2.139.145.44 0:0:0:0:0:ffff:28b:912c
2.139.145.45 0:0:0:0:0:ffff:28b:912d
2.139.145.46 0:0:0:0:0:ffff:28b:912e
2.139.145.47 0:0:0:0:0:ffff:28b:912f
2.139.145.48 0:0:0:0:0:ffff:28b:9130
2.139.145.49 0:0:0:0:0:ffff:28b:9131
2.139.145.50 0:0:0:0:0:ffff:28b:9132
2.139.145.51 0:0:0:0:0:ffff:28b:9133
2.139.145.52 0:0:0:0:0:ffff:28b:9134
2.139.145.53 0:0:0:0:0:ffff:28b:9135
2.139.145.54 0:0:0:0:0:ffff:28b:9136
2.139.145.55 0:0:0:0:0:ffff:28b:9137
2.139.145.56 0:0:0:0:0:ffff:28b:9138
2.139.145.57 0:0:0:0:0:ffff:28b:9139
2.139.145.58 0:0:0:0:0:ffff:28b:913a
2.139.145.59 0:0:0:0:0:ffff:28b:913b
2.139.145.60 0:0:0:0:0:ffff:28b:913c


2.139.145.61 0:0:0:0:0:ffff:28b:913d
2.139.145.62 0:0:0:0:0:ffff:28b:913e
2.139.145.63 0:0:0:0:0:ffff:28b:913f
2.139.145.64 0:0:0:0:0:ffff:28b:9140
2.139.145.65 0:0:0:0:0:ffff:28b:9141
2.139.145.66 0:0:0:0:0:ffff:28b:9142
2.139.145.67 0:0:0:0:0:ffff:28b:9143
2.139.145.68 0:0:0:0:0:ffff:28b:9144
2.139.145.69 0:0:0:0:0:ffff:28b:9145
2.139.145.70 0:0:0:0:0:ffff:28b:9146
2.139.145.71 0:0:0:0:0:ffff:28b:9147
2.139.145.72 0:0:0:0:0:ffff:28b:9148
2.139.145.73 0:0:0:0:0:ffff:28b:9149
2.139.145.74 0:0:0:0:0:ffff:28b:914a
2.139.145.75 0:0:0:0:0:ffff:28b:914b
2.139.145.76 0:0:0:0:0:ffff:28b:914c
2.139.145.77 0:0:0:0:0:ffff:28b:914d
2.139.145.78 0:0:0:0:0:ffff:28b:914e
2.139.145.79 0:0:0:0:0:ffff:28b:914f
2.139.145.80 0:0:0:0:0:ffff:28b:9150
2.139.145.81 0:0:0:0:0:ffff:28b:9151
2.139.145.82 0:0:0:0:0:ffff:28b:9152
2.139.145.83 0:0:0:0:0:ffff:28b:9153
2.139.145.84 0:0:0:0:0:ffff:28b:9154
2.139.145.85 0:0:0:0:0:ffff:28b:9155
2.139.145.86 0:0:0:0:0:ffff:28b:9156
2.139.145.87 0:0:0:0:0:ffff:28b:9157
2.139.145.88 0:0:0:0:0:ffff:28b:9158
2.139.145.89 0:0:0:0:0:ffff:28b:9159
2.139.145.90 0:0:0:0:0:ffff:28b:915a
2.139.145.91 0:0:0:0:0:ffff:28b:915b
2.139.145.92 0:0:0:0:0:ffff:28b:915c
2.139.145.93 0:0:0:0:0:ffff:28b:915d
2.139.145.94 0:0:0:0:0:ffff:28b:915e
2.139.145.95 0:0:0:0:0:ffff:28b:915f
2.139.145.96 0:0:0:0:0:ffff:28b:9160
2.139.145.97 0:0:0:0:0:ffff:28b:9161
2.139.145.98 0:0:0:0:0:ffff:28b:9162
2.139.145.99 0:0:0:0:0:ffff:28b:9163
2.139.145.100 0:0:0:0:0:ffff:28b:9164
2.139.145.101 0:0:0:0:0:ffff:28b:9165
2.139.145.102 0:0:0:0:0:ffff:28b:9166
2.139.145.103 0:0:0:0:0:ffff:28b:9167
2.139.145.104 0:0:0:0:0:ffff:28b:9168
2.139.145.105 0:0:0:0:0:ffff:28b:9169
2.139.145.106 0:0:0:0:0:ffff:28b:916a
2.139.145.107 0:0:0:0:0:ffff:28b:916b
2.139.145.108 0:0:0:0:0:ffff:28b:916c
2.139.145.109 0:0:0:0:0:ffff:28b:916d
2.139.145.110 0:0:0:0:0:ffff:28b:916e
2.139.145.111 0:0:0:0:0:ffff:28b:916f
2.139.145.112 0:0:0:0:0:ffff:28b:9170
2.139.145.113 0:0:0:0:0:ffff:28b:9171
2.139.145.114 0:0:0:0:0:ffff:28b:9172
2.139.145.115 0:0:0:0:0:ffff:28b:9173
2.139.145.116 0:0:0:0:0:ffff:28b:9174
2.139.145.117 0:0:0:0:0:ffff:28b:9175
2.139.145.118 0:0:0:0:0:ffff:28b:9176
2.139.145.119 0:0:0:0:0:ffff:28b:9177
2.139.145.120 0:0:0:0:0:ffff:28b:9178


2.139.145.121 0:0:0:0:0:ffff:28b:9179
2.139.145.122 0:0:0:0:0:ffff:28b:917a
2.139.145.123 0:0:0:0:0:ffff:28b:917b
2.139.145.124 0:0:0:0:0:ffff:28b:917c
2.139.145.125 0:0:0:0:0:ffff:28b:917d
2.139.145.126 0:0:0:0:0:ffff:28b:917e
2.139.145.127 0:0:0:0:0:ffff:28b:917f
2.139.145.128 0:0:0:0:0:ffff:28b:9180
2.139.145.129 0:0:0:0:0:ffff:28b:9181
2.139.145.130 0:0:0:0:0:ffff:28b:9182
2.139.145.131 0:0:0:0:0:ffff:28b:9183
2.139.145.132 0:0:0:0:0:ffff:28b:9184
2.139.145.133 0:0:0:0:0:ffff:28b:9185
2.139.145.134 0:0:0:0:0:ffff:28b:9186
2.139.145.135 0:0:0:0:0:ffff:28b:9187
2.139.145.136 0:0:0:0:0:ffff:28b:9188
2.139.145.137 0:0:0:0:0:ffff:28b:9189
2.139.145.138 0:0:0:0:0:ffff:28b:918a
2.139.145.139 0:0:0:0:0:ffff:28b:918b
2.139.145.140 0:0:0:0:0:ffff:28b:918c
2.139.145.141 0:0:0:0:0:ffff:28b:918d
2.139.145.142 0:0:0:0:0:ffff:28b:918e
2.139.145.143 0:0:0:0:0:ffff:28b:918f
2.139.145.144 0:0:0:0:0:ffff:28b:9190
2.139.145.145 0:0:0:0:0:ffff:28b:9191
2.139.145.146 0:0:0:0:0:ffff:28b:9192
2.139.145.147 0:0:0:0:0:ffff:28b:9193
2.139.145.148 0:0:0:0:0:ffff:28b:9194
2.139.145.149 0:0:0:0:0:ffff:28b:9195
2.139.145.150 0:0:0:0:0:ffff:28b:9196
2.139.145.151 0:0:0:0:0:ffff:28b:9197
2.139.145.152 0:0:0:0:0:ffff:28b:9198
2.139.145.153 0:0:0:0:0:ffff:28b:9199
2.139.145.154 0:0:0:0:0:ffff:28b:919a
2.139.145.155 0:0:0:0:0:ffff:28b:919b
2.139.145.156 0:0:0:0:0:ffff:28b:919c
2.139.145.157 0:0:0:0:0:ffff:28b:919d
2.139.145.158 0:0:0:0:0:ffff:28b:919e
2.139.145.159 0:0:0:0:0:ffff:28b:919f
2.139.145.160 0:0:0:0:0:ffff:28b:91a0
2.139.145.161 0:0:0:0:0:ffff:28b:91a1
2.139.145.162 0:0:0:0:0:ffff:28b:91a2
2.139.145.163 0:0:0:0:0:ffff:28b:91a3
2.139.145.164 0:0:0:0:0:ffff:28b:91a4
2.139.145.165 0:0:0:0:0:ffff:28b:91a5
2.139.145.166 0:0:0:0:0:ffff:28b:91a6
2.139.145.167 0:0:0:0:0:ffff:28b:91a7
2.139.145.168 0:0:0:0:0:ffff:28b:91a8
2.139.145.169 0:0:0:0:0:ffff:28b:91a9
2.139.145.170 0:0:0:0:0:ffff:28b:91aa
2.139.145.171 0:0:0:0:0:ffff:28b:91ab
2.139.145.172 0:0:0:0:0:ffff:28b:91ac
2.139.145.173 0:0:0:0:0:ffff:28b:91ad
2.139.145.174 0:0:0:0:0:ffff:28b:91ae
2.139.145.175 0:0:0:0:0:ffff:28b:91af
2.139.145.176 0:0:0:0:0:ffff:28b:91b0
2.139.145.177 0:0:0:0:0:ffff:28b:91b1
2.139.145.178 0:0:0:0:0:ffff:28b:91b2
2.139.145.179 0:0:0:0:0:ffff:28b:91b3
2.139.145.180 0:0:0:0:0:ffff:28b:91b4


2.139.145.181 0:0:0:0:0:ffff:28b:91b5
2.139.145.182 0:0:0:0:0:ffff:28b:91b6
2.139.145.183 0:0:0:0:0:ffff:28b:91b7
2.139.145.184 0:0:0:0:0:ffff:28b:91b8
2.139.145.185 0:0:0:0:0:ffff:28b:91b9
2.139.145.186 0:0:0:0:0:ffff:28b:91ba
2.139.145.187 0:0:0:0:0:ffff:28b:91bb
2.139.145.188 0:0:0:0:0:ffff:28b:91bc
2.139.145.189 0:0:0:0:0:ffff:28b:91bd
2.139.145.190 0:0:0:0:0:ffff:28b:91be
2.139.145.191 0:0:0:0:0:ffff:28b:91bf
2.139.145.192 0:0:0:0:0:ffff:28b:91c0
2.139.145.193 0:0:0:0:0:ffff:28b:91c1
2.139.145.194 0:0:0:0:0:ffff:28b:91c2
2.139.145.195 0:0:0:0:0:ffff:28b:91c3
2.139.145.196 0:0:0:0:0:ffff:28b:91c4
2.139.145.197 0:0:0:0:0:ffff:28b:91c5
2.139.145.198 0:0:0:0:0:ffff:28b:91c6
2.139.145.199 0:0:0:0:0:ffff:28b:91c7
2.139.145.200 0:0:0:0:0:ffff:28b:91c8
2.139.145.201 0:0:0:0:0:ffff:28b:91c9
2.139.145.202 0:0:0:0:0:ffff:28b:91ca
2.139.145.203 0:0:0:0:0:ffff:28b:91cb
2.139.145.204 0:0:0:0:0:ffff:28b:91cc
2.139.145.205 0:0:0:0:0:ffff:28b:91cd
2.139.145.206 0:0:0:0:0:ffff:28b:91ce
2.139.145.207 0:0:0:0:0:ffff:28b:91cf
2.139.145.208 0:0:0:0:0:ffff:28b:91d0
2.139.145.209 0:0:0:0:0:ffff:28b:91d1
2.139.145.210 0:0:0:0:0:ffff:28b:91d2
2.139.145.211 0:0:0:0:0:ffff:28b:91d3
2.139.145.212 0:0:0:0:0:ffff:28b:91d4
2.139.145.213 0:0:0:0:0:ffff:28b:91d5
2.139.145.214 0:0:0:0:0:ffff:28b:91d6
2.139.145.215 0:0:0:0:0:ffff:28b:91d7
2.139.145.216 0:0:0:0:0:ffff:28b:91d8
2.139.145.217 0:0:0:0:0:ffff:28b:91d9
2.139.145.218 0:0:0:0:0:ffff:28b:91da
2.139.145.219 0:0:0:0:0:ffff:28b:91db
2.139.145.220 0:0:0:0:0:ffff:28b:91dc
2.139.145.221 0:0:0:0:0:ffff:28b:91dd
2.139.145.222 0:0:0:0:0:ffff:28b:91de
2.139.145.223 0:0:0:0:0:ffff:28b:91df
2.139.145.224 0:0:0:0:0:ffff:28b:91e0
2.139.145.225 0:0:0:0:0:ffff:28b:91e1
2.139.145.226 0:0:0:0:0:ffff:28b:91e2
2.139.145.227 0:0:0:0:0:ffff:28b:91e3
2.139.145.228 0:0:0:0:0:ffff:28b:91e4
2.139.145.229 0:0:0:0:0:ffff:28b:91e5
2.139.145.230 0:0:0:0:0:ffff:28b:91e6
2.139.145.231 0:0:0:0:0:ffff:28b:91e7
2.139.145.232 0:0:0:0:0:ffff:28b:91e8
2.139.145.233 0:0:0:0:0:ffff:28b:91e9
2.139.145.234 0:0:0:0:0:ffff:28b:91ea
2.139.145.235 0:0:0:0:0:ffff:28b:91eb
2.139.145.236 0:0:0:0:0:ffff:28b:91ec
2.139.145.237 0:0:0:0:0:ffff:28b:91ed
2.139.145.238 0:0:0:0:0:ffff:28b:91ee
2.139.145.239 0:0:0:0:0:ffff:28b:91ef
2.139.145.240 0:0:0:0:0:ffff:28b:91f0
2.139.145.241 0:0:0:0:0:ffff:28b:91f1
2.139.145.242 0:0:0:0:0:ffff:28b:91f2
2.139.145.243 0:0:0:0:0:ffff:28b:91f3
2.139.145.244 0:0:0:0:0:ffff:28b:91f4
2.139.145.245 0:0:0:0:0:ffff:28b:91f5
2.139.145.246 0:0:0:0:0:ffff:28b:91f6
2.139.145.247 0:0:0:0:0:ffff:28b:91f7
2.139.145.248 0:0:0:0:0:ffff:28b:91f8
2.139.145.249 0:0:0:0:0:ffff:28b:91f9
2.139.145.250 0:0:0:0:0:ffff:28b:91fa
2.139.145.251 0:0:0:0:0:ffff:28b:91fb
2.139.145.252 0:0:0:0:0:ffff:28b:91fc
2.139.145.253 0:0:0:0:0:ffff:28b:91fd
2.139.145.254 0:0:0:0:0:ffff:28b:91fe
2.139.145.255 0:0:0:0:0:ffff:28b: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.