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
199.138.145.1 0:0:0:0:0:ffff:c78a:9101
199.138.145.2 0:0:0:0:0:ffff:c78a:9102
199.138.145.3 0:0:0:0:0:ffff:c78a:9103
199.138.145.4 0:0:0:0:0:ffff:c78a:9104
199.138.145.5 0:0:0:0:0:ffff:c78a:9105
199.138.145.6 0:0:0:0:0:ffff:c78a:9106
199.138.145.7 0:0:0:0:0:ffff:c78a:9107
199.138.145.8 0:0:0:0:0:ffff:c78a:9108
199.138.145.9 0:0:0:0:0:ffff:c78a:9109
199.138.145.10 0:0:0:0:0:ffff:c78a:910a
199.138.145.11 0:0:0:0:0:ffff:c78a:910b
199.138.145.12 0:0:0:0:0:ffff:c78a:910c
199.138.145.13 0:0:0:0:0:ffff:c78a:910d
199.138.145.14 0:0:0:0:0:ffff:c78a:910e
199.138.145.15 0:0:0:0:0:ffff:c78a:910f
199.138.145.16 0:0:0:0:0:ffff:c78a:9110
199.138.145.17 0:0:0:0:0:ffff:c78a:9111
199.138.145.18 0:0:0:0:0:ffff:c78a:9112
199.138.145.19 0:0:0:0:0:ffff:c78a:9113
199.138.145.20 0:0:0:0:0:ffff:c78a:9114
199.138.145.21 0:0:0:0:0:ffff:c78a:9115
199.138.145.22 0:0:0:0:0:ffff:c78a:9116
199.138.145.23 0:0:0:0:0:ffff:c78a:9117
199.138.145.24 0:0:0:0:0:ffff:c78a:9118
199.138.145.25 0:0:0:0:0:ffff:c78a:9119
199.138.145.26 0:0:0:0:0:ffff:c78a:911a
199.138.145.27 0:0:0:0:0:ffff:c78a:911b
199.138.145.28 0:0:0:0:0:ffff:c78a:911c
199.138.145.29 0:0:0:0:0:ffff:c78a:911d
199.138.145.30 0:0:0:0:0:ffff:c78a:911e
199.138.145.31 0:0:0:0:0:ffff:c78a:911f
199.138.145.32 0:0:0:0:0:ffff:c78a:9120
199.138.145.33 0:0:0:0:0:ffff:c78a:9121
199.138.145.34 0:0:0:0:0:ffff:c78a:9122
199.138.145.35 0:0:0:0:0:ffff:c78a:9123
199.138.145.36 0:0:0:0:0:ffff:c78a:9124
199.138.145.37 0:0:0:0:0:ffff:c78a:9125
199.138.145.38 0:0:0:0:0:ffff:c78a:9126
199.138.145.39 0:0:0:0:0:ffff:c78a:9127
199.138.145.40 0:0:0:0:0:ffff:c78a:9128
199.138.145.41 0:0:0:0:0:ffff:c78a:9129
199.138.145.42 0:0:0:0:0:ffff:c78a:912a
199.138.145.43 0:0:0:0:0:ffff:c78a:912b
199.138.145.44 0:0:0:0:0:ffff:c78a:912c
199.138.145.45 0:0:0:0:0:ffff:c78a:912d
199.138.145.46 0:0:0:0:0:ffff:c78a:912e
199.138.145.47 0:0:0:0:0:ffff:c78a:912f
199.138.145.48 0:0:0:0:0:ffff:c78a:9130
199.138.145.49 0:0:0:0:0:ffff:c78a:9131
199.138.145.50 0:0:0:0:0:ffff:c78a:9132
199.138.145.51 0:0:0:0:0:ffff:c78a:9133
199.138.145.52 0:0:0:0:0:ffff:c78a:9134
199.138.145.53 0:0:0:0:0:ffff:c78a:9135
199.138.145.54 0:0:0:0:0:ffff:c78a:9136
199.138.145.55 0:0:0:0:0:ffff:c78a:9137
199.138.145.56 0:0:0:0:0:ffff:c78a:9138
199.138.145.57 0:0:0:0:0:ffff:c78a:9139
199.138.145.58 0:0:0:0:0:ffff:c78a:913a
199.138.145.59 0:0:0:0:0:ffff:c78a:913b
199.138.145.60 0:0:0:0:0:ffff:c78a:913c


199.138.145.61 0:0:0:0:0:ffff:c78a:913d
199.138.145.62 0:0:0:0:0:ffff:c78a:913e
199.138.145.63 0:0:0:0:0:ffff:c78a:913f
199.138.145.64 0:0:0:0:0:ffff:c78a:9140
199.138.145.65 0:0:0:0:0:ffff:c78a:9141
199.138.145.66 0:0:0:0:0:ffff:c78a:9142
199.138.145.67 0:0:0:0:0:ffff:c78a:9143
199.138.145.68 0:0:0:0:0:ffff:c78a:9144
199.138.145.69 0:0:0:0:0:ffff:c78a:9145
199.138.145.70 0:0:0:0:0:ffff:c78a:9146
199.138.145.71 0:0:0:0:0:ffff:c78a:9147
199.138.145.72 0:0:0:0:0:ffff:c78a:9148
199.138.145.73 0:0:0:0:0:ffff:c78a:9149
199.138.145.74 0:0:0:0:0:ffff:c78a:914a
199.138.145.75 0:0:0:0:0:ffff:c78a:914b
199.138.145.76 0:0:0:0:0:ffff:c78a:914c
199.138.145.77 0:0:0:0:0:ffff:c78a:914d
199.138.145.78 0:0:0:0:0:ffff:c78a:914e
199.138.145.79 0:0:0:0:0:ffff:c78a:914f
199.138.145.80 0:0:0:0:0:ffff:c78a:9150
199.138.145.81 0:0:0:0:0:ffff:c78a:9151
199.138.145.82 0:0:0:0:0:ffff:c78a:9152
199.138.145.83 0:0:0:0:0:ffff:c78a:9153
199.138.145.84 0:0:0:0:0:ffff:c78a:9154
199.138.145.85 0:0:0:0:0:ffff:c78a:9155
199.138.145.86 0:0:0:0:0:ffff:c78a:9156
199.138.145.87 0:0:0:0:0:ffff:c78a:9157
199.138.145.88 0:0:0:0:0:ffff:c78a:9158
199.138.145.89 0:0:0:0:0:ffff:c78a:9159
199.138.145.90 0:0:0:0:0:ffff:c78a:915a
199.138.145.91 0:0:0:0:0:ffff:c78a:915b
199.138.145.92 0:0:0:0:0:ffff:c78a:915c
199.138.145.93 0:0:0:0:0:ffff:c78a:915d
199.138.145.94 0:0:0:0:0:ffff:c78a:915e
199.138.145.95 0:0:0:0:0:ffff:c78a:915f
199.138.145.96 0:0:0:0:0:ffff:c78a:9160
199.138.145.97 0:0:0:0:0:ffff:c78a:9161
199.138.145.98 0:0:0:0:0:ffff:c78a:9162
199.138.145.99 0:0:0:0:0:ffff:c78a:9163
199.138.145.100 0:0:0:0:0:ffff:c78a:9164
199.138.145.101 0:0:0:0:0:ffff:c78a:9165
199.138.145.102 0:0:0:0:0:ffff:c78a:9166
199.138.145.103 0:0:0:0:0:ffff:c78a:9167
199.138.145.104 0:0:0:0:0:ffff:c78a:9168
199.138.145.105 0:0:0:0:0:ffff:c78a:9169
199.138.145.106 0:0:0:0:0:ffff:c78a:916a
199.138.145.107 0:0:0:0:0:ffff:c78a:916b
199.138.145.108 0:0:0:0:0:ffff:c78a:916c
199.138.145.109 0:0:0:0:0:ffff:c78a:916d
199.138.145.110 0:0:0:0:0:ffff:c78a:916e
199.138.145.111 0:0:0:0:0:ffff:c78a:916f
199.138.145.112 0:0:0:0:0:ffff:c78a:9170
199.138.145.113 0:0:0:0:0:ffff:c78a:9171
199.138.145.114 0:0:0:0:0:ffff:c78a:9172
199.138.145.115 0:0:0:0:0:ffff:c78a:9173
199.138.145.116 0:0:0:0:0:ffff:c78a:9174
199.138.145.117 0:0:0:0:0:ffff:c78a:9175
199.138.145.118 0:0:0:0:0:ffff:c78a:9176
199.138.145.119 0:0:0:0:0:ffff:c78a:9177
199.138.145.120 0:0:0:0:0:ffff:c78a:9178


199.138.145.121 0:0:0:0:0:ffff:c78a:9179
199.138.145.122 0:0:0:0:0:ffff:c78a:917a
199.138.145.123 0:0:0:0:0:ffff:c78a:917b
199.138.145.124 0:0:0:0:0:ffff:c78a:917c
199.138.145.125 0:0:0:0:0:ffff:c78a:917d
199.138.145.126 0:0:0:0:0:ffff:c78a:917e
199.138.145.127 0:0:0:0:0:ffff:c78a:917f
199.138.145.128 0:0:0:0:0:ffff:c78a:9180
199.138.145.129 0:0:0:0:0:ffff:c78a:9181
199.138.145.130 0:0:0:0:0:ffff:c78a:9182
199.138.145.131 0:0:0:0:0:ffff:c78a:9183
199.138.145.132 0:0:0:0:0:ffff:c78a:9184
199.138.145.133 0:0:0:0:0:ffff:c78a:9185
199.138.145.134 0:0:0:0:0:ffff:c78a:9186
199.138.145.135 0:0:0:0:0:ffff:c78a:9187
199.138.145.136 0:0:0:0:0:ffff:c78a:9188
199.138.145.137 0:0:0:0:0:ffff:c78a:9189
199.138.145.138 0:0:0:0:0:ffff:c78a:918a
199.138.145.139 0:0:0:0:0:ffff:c78a:918b
199.138.145.140 0:0:0:0:0:ffff:c78a:918c
199.138.145.141 0:0:0:0:0:ffff:c78a:918d
199.138.145.142 0:0:0:0:0:ffff:c78a:918e
199.138.145.143 0:0:0:0:0:ffff:c78a:918f
199.138.145.144 0:0:0:0:0:ffff:c78a:9190
199.138.145.145 0:0:0:0:0:ffff:c78a:9191
199.138.145.146 0:0:0:0:0:ffff:c78a:9192
199.138.145.147 0:0:0:0:0:ffff:c78a:9193
199.138.145.148 0:0:0:0:0:ffff:c78a:9194
199.138.145.149 0:0:0:0:0:ffff:c78a:9195
199.138.145.150 0:0:0:0:0:ffff:c78a:9196
199.138.145.151 0:0:0:0:0:ffff:c78a:9197
199.138.145.152 0:0:0:0:0:ffff:c78a:9198
199.138.145.153 0:0:0:0:0:ffff:c78a:9199
199.138.145.154 0:0:0:0:0:ffff:c78a:919a
199.138.145.155 0:0:0:0:0:ffff:c78a:919b
199.138.145.156 0:0:0:0:0:ffff:c78a:919c
199.138.145.157 0:0:0:0:0:ffff:c78a:919d
199.138.145.158 0:0:0:0:0:ffff:c78a:919e
199.138.145.159 0:0:0:0:0:ffff:c78a:919f
199.138.145.160 0:0:0:0:0:ffff:c78a:91a0
199.138.145.161 0:0:0:0:0:ffff:c78a:91a1
199.138.145.162 0:0:0:0:0:ffff:c78a:91a2
199.138.145.163 0:0:0:0:0:ffff:c78a:91a3
199.138.145.164 0:0:0:0:0:ffff:c78a:91a4
199.138.145.165 0:0:0:0:0:ffff:c78a:91a5
199.138.145.166 0:0:0:0:0:ffff:c78a:91a6
199.138.145.167 0:0:0:0:0:ffff:c78a:91a7
199.138.145.168 0:0:0:0:0:ffff:c78a:91a8
199.138.145.169 0:0:0:0:0:ffff:c78a:91a9
199.138.145.170 0:0:0:0:0:ffff:c78a:91aa
199.138.145.171 0:0:0:0:0:ffff:c78a:91ab
199.138.145.172 0:0:0:0:0:ffff:c78a:91ac
199.138.145.173 0:0:0:0:0:ffff:c78a:91ad
199.138.145.174 0:0:0:0:0:ffff:c78a:91ae
199.138.145.175 0:0:0:0:0:ffff:c78a:91af
199.138.145.176 0:0:0:0:0:ffff:c78a:91b0
199.138.145.177 0:0:0:0:0:ffff:c78a:91b1
199.138.145.178 0:0:0:0:0:ffff:c78a:91b2
199.138.145.179 0:0:0:0:0:ffff:c78a:91b3
199.138.145.180 0:0:0:0:0:ffff:c78a:91b4


199.138.145.181 0:0:0:0:0:ffff:c78a:91b5
199.138.145.182 0:0:0:0:0:ffff:c78a:91b6
199.138.145.183 0:0:0:0:0:ffff:c78a:91b7
199.138.145.184 0:0:0:0:0:ffff:c78a:91b8
199.138.145.185 0:0:0:0:0:ffff:c78a:91b9
199.138.145.186 0:0:0:0:0:ffff:c78a:91ba
199.138.145.187 0:0:0:0:0:ffff:c78a:91bb
199.138.145.188 0:0:0:0:0:ffff:c78a:91bc
199.138.145.189 0:0:0:0:0:ffff:c78a:91bd
199.138.145.190 0:0:0:0:0:ffff:c78a:91be
199.138.145.191 0:0:0:0:0:ffff:c78a:91bf
199.138.145.192 0:0:0:0:0:ffff:c78a:91c0
199.138.145.193 0:0:0:0:0:ffff:c78a:91c1
199.138.145.194 0:0:0:0:0:ffff:c78a:91c2
199.138.145.195 0:0:0:0:0:ffff:c78a:91c3
199.138.145.196 0:0:0:0:0:ffff:c78a:91c4
199.138.145.197 0:0:0:0:0:ffff:c78a:91c5
199.138.145.198 0:0:0:0:0:ffff:c78a:91c6
199.138.145.199 0:0:0:0:0:ffff:c78a:91c7
199.138.145.200 0:0:0:0:0:ffff:c78a:91c8
199.138.145.201 0:0:0:0:0:ffff:c78a:91c9
199.138.145.202 0:0:0:0:0:ffff:c78a:91ca
199.138.145.203 0:0:0:0:0:ffff:c78a:91cb
199.138.145.204 0:0:0:0:0:ffff:c78a:91cc
199.138.145.205 0:0:0:0:0:ffff:c78a:91cd
199.138.145.206 0:0:0:0:0:ffff:c78a:91ce
199.138.145.207 0:0:0:0:0:ffff:c78a:91cf
199.138.145.208 0:0:0:0:0:ffff:c78a:91d0
199.138.145.209 0:0:0:0:0:ffff:c78a:91d1
199.138.145.210 0:0:0:0:0:ffff:c78a:91d2
199.138.145.211 0:0:0:0:0:ffff:c78a:91d3
199.138.145.212 0:0:0:0:0:ffff:c78a:91d4
199.138.145.213 0:0:0:0:0:ffff:c78a:91d5
199.138.145.214 0:0:0:0:0:ffff:c78a:91d6
199.138.145.215 0:0:0:0:0:ffff:c78a:91d7
199.138.145.216 0:0:0:0:0:ffff:c78a:91d8
199.138.145.217 0:0:0:0:0:ffff:c78a:91d9
199.138.145.218 0:0:0:0:0:ffff:c78a:91da
199.138.145.219 0:0:0:0:0:ffff:c78a:91db
199.138.145.220 0:0:0:0:0:ffff:c78a:91dc
199.138.145.221 0:0:0:0:0:ffff:c78a:91dd
199.138.145.222 0:0:0:0:0:ffff:c78a:91de
199.138.145.223 0:0:0:0:0:ffff:c78a:91df
199.138.145.224 0:0:0:0:0:ffff:c78a:91e0
199.138.145.225 0:0:0:0:0:ffff:c78a:91e1
199.138.145.226 0:0:0:0:0:ffff:c78a:91e2
199.138.145.227 0:0:0:0:0:ffff:c78a:91e3
199.138.145.228 0:0:0:0:0:ffff:c78a:91e4
199.138.145.229 0:0:0:0:0:ffff:c78a:91e5
199.138.145.230 0:0:0:0:0:ffff:c78a:91e6
199.138.145.231 0:0:0:0:0:ffff:c78a:91e7
199.138.145.232 0:0:0:0:0:ffff:c78a:91e8
199.138.145.233 0:0:0:0:0:ffff:c78a:91e9
199.138.145.234 0:0:0:0:0:ffff:c78a:91ea
199.138.145.235 0:0:0:0:0:ffff:c78a:91eb
199.138.145.236 0:0:0:0:0:ffff:c78a:91ec
199.138.145.237 0:0:0:0:0:ffff:c78a:91ed
199.138.145.238 0:0:0:0:0:ffff:c78a:91ee
199.138.145.239 0:0:0:0:0:ffff:c78a:91ef
199.138.145.240 0:0:0:0:0:ffff:c78a:91f0
199.138.145.241 0:0:0:0:0:ffff:c78a:91f1
199.138.145.242 0:0:0:0:0:ffff:c78a:91f2
199.138.145.243 0:0:0:0:0:ffff:c78a:91f3
199.138.145.244 0:0:0:0:0:ffff:c78a:91f4
199.138.145.245 0:0:0:0:0:ffff:c78a:91f5
199.138.145.246 0:0:0:0:0:ffff:c78a:91f6
199.138.145.247 0:0:0:0:0:ffff:c78a:91f7
199.138.145.248 0:0:0:0:0:ffff:c78a:91f8
199.138.145.249 0:0:0:0:0:ffff:c78a:91f9
199.138.145.250 0:0:0:0:0:ffff:c78a:91fa
199.138.145.251 0:0:0:0:0:ffff:c78a:91fb
199.138.145.252 0:0:0:0:0:ffff:c78a:91fc
199.138.145.253 0:0:0:0:0:ffff:c78a:91fd
199.138.145.254 0:0:0:0:0:ffff:c78a:91fe
199.138.145.255 0:0:0:0:0:ffff:c78a: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.