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
199.145.129.1 0:0:0:0:0:ffff:c791:8101
199.145.129.2 0:0:0:0:0:ffff:c791:8102
199.145.129.3 0:0:0:0:0:ffff:c791:8103
199.145.129.4 0:0:0:0:0:ffff:c791:8104
199.145.129.5 0:0:0:0:0:ffff:c791:8105
199.145.129.6 0:0:0:0:0:ffff:c791:8106
199.145.129.7 0:0:0:0:0:ffff:c791:8107
199.145.129.8 0:0:0:0:0:ffff:c791:8108
199.145.129.9 0:0:0:0:0:ffff:c791:8109
199.145.129.10 0:0:0:0:0:ffff:c791:810a
199.145.129.11 0:0:0:0:0:ffff:c791:810b
199.145.129.12 0:0:0:0:0:ffff:c791:810c
199.145.129.13 0:0:0:0:0:ffff:c791:810d
199.145.129.14 0:0:0:0:0:ffff:c791:810e
199.145.129.15 0:0:0:0:0:ffff:c791:810f
199.145.129.16 0:0:0:0:0:ffff:c791:8110
199.145.129.17 0:0:0:0:0:ffff:c791:8111
199.145.129.18 0:0:0:0:0:ffff:c791:8112
199.145.129.19 0:0:0:0:0:ffff:c791:8113
199.145.129.20 0:0:0:0:0:ffff:c791:8114
199.145.129.21 0:0:0:0:0:ffff:c791:8115
199.145.129.22 0:0:0:0:0:ffff:c791:8116
199.145.129.23 0:0:0:0:0:ffff:c791:8117
199.145.129.24 0:0:0:0:0:ffff:c791:8118
199.145.129.25 0:0:0:0:0:ffff:c791:8119
199.145.129.26 0:0:0:0:0:ffff:c791:811a
199.145.129.27 0:0:0:0:0:ffff:c791:811b
199.145.129.28 0:0:0:0:0:ffff:c791:811c
199.145.129.29 0:0:0:0:0:ffff:c791:811d
199.145.129.30 0:0:0:0:0:ffff:c791:811e
199.145.129.31 0:0:0:0:0:ffff:c791:811f
199.145.129.32 0:0:0:0:0:ffff:c791:8120
199.145.129.33 0:0:0:0:0:ffff:c791:8121
199.145.129.34 0:0:0:0:0:ffff:c791:8122
199.145.129.35 0:0:0:0:0:ffff:c791:8123
199.145.129.36 0:0:0:0:0:ffff:c791:8124
199.145.129.37 0:0:0:0:0:ffff:c791:8125
199.145.129.38 0:0:0:0:0:ffff:c791:8126
199.145.129.39 0:0:0:0:0:ffff:c791:8127
199.145.129.40 0:0:0:0:0:ffff:c791:8128
199.145.129.41 0:0:0:0:0:ffff:c791:8129
199.145.129.42 0:0:0:0:0:ffff:c791:812a
199.145.129.43 0:0:0:0:0:ffff:c791:812b
199.145.129.44 0:0:0:0:0:ffff:c791:812c
199.145.129.45 0:0:0:0:0:ffff:c791:812d
199.145.129.46 0:0:0:0:0:ffff:c791:812e
199.145.129.47 0:0:0:0:0:ffff:c791:812f
199.145.129.48 0:0:0:0:0:ffff:c791:8130
199.145.129.49 0:0:0:0:0:ffff:c791:8131
199.145.129.50 0:0:0:0:0:ffff:c791:8132
199.145.129.51 0:0:0:0:0:ffff:c791:8133
199.145.129.52 0:0:0:0:0:ffff:c791:8134
199.145.129.53 0:0:0:0:0:ffff:c791:8135
199.145.129.54 0:0:0:0:0:ffff:c791:8136
199.145.129.55 0:0:0:0:0:ffff:c791:8137
199.145.129.56 0:0:0:0:0:ffff:c791:8138
199.145.129.57 0:0:0:0:0:ffff:c791:8139
199.145.129.58 0:0:0:0:0:ffff:c791:813a
199.145.129.59 0:0:0:0:0:ffff:c791:813b
199.145.129.60 0:0:0:0:0:ffff:c791:813c


199.145.129.61 0:0:0:0:0:ffff:c791:813d
199.145.129.62 0:0:0:0:0:ffff:c791:813e
199.145.129.63 0:0:0:0:0:ffff:c791:813f
199.145.129.64 0:0:0:0:0:ffff:c791:8140
199.145.129.65 0:0:0:0:0:ffff:c791:8141
199.145.129.66 0:0:0:0:0:ffff:c791:8142
199.145.129.67 0:0:0:0:0:ffff:c791:8143
199.145.129.68 0:0:0:0:0:ffff:c791:8144
199.145.129.69 0:0:0:0:0:ffff:c791:8145
199.145.129.70 0:0:0:0:0:ffff:c791:8146
199.145.129.71 0:0:0:0:0:ffff:c791:8147
199.145.129.72 0:0:0:0:0:ffff:c791:8148
199.145.129.73 0:0:0:0:0:ffff:c791:8149
199.145.129.74 0:0:0:0:0:ffff:c791:814a
199.145.129.75 0:0:0:0:0:ffff:c791:814b
199.145.129.76 0:0:0:0:0:ffff:c791:814c
199.145.129.77 0:0:0:0:0:ffff:c791:814d
199.145.129.78 0:0:0:0:0:ffff:c791:814e
199.145.129.79 0:0:0:0:0:ffff:c791:814f
199.145.129.80 0:0:0:0:0:ffff:c791:8150
199.145.129.81 0:0:0:0:0:ffff:c791:8151
199.145.129.82 0:0:0:0:0:ffff:c791:8152
199.145.129.83 0:0:0:0:0:ffff:c791:8153
199.145.129.84 0:0:0:0:0:ffff:c791:8154
199.145.129.85 0:0:0:0:0:ffff:c791:8155
199.145.129.86 0:0:0:0:0:ffff:c791:8156
199.145.129.87 0:0:0:0:0:ffff:c791:8157
199.145.129.88 0:0:0:0:0:ffff:c791:8158
199.145.129.89 0:0:0:0:0:ffff:c791:8159
199.145.129.90 0:0:0:0:0:ffff:c791:815a
199.145.129.91 0:0:0:0:0:ffff:c791:815b
199.145.129.92 0:0:0:0:0:ffff:c791:815c
199.145.129.93 0:0:0:0:0:ffff:c791:815d
199.145.129.94 0:0:0:0:0:ffff:c791:815e
199.145.129.95 0:0:0:0:0:ffff:c791:815f
199.145.129.96 0:0:0:0:0:ffff:c791:8160
199.145.129.97 0:0:0:0:0:ffff:c791:8161
199.145.129.98 0:0:0:0:0:ffff:c791:8162
199.145.129.99 0:0:0:0:0:ffff:c791:8163
199.145.129.100 0:0:0:0:0:ffff:c791:8164
199.145.129.101 0:0:0:0:0:ffff:c791:8165
199.145.129.102 0:0:0:0:0:ffff:c791:8166
199.145.129.103 0:0:0:0:0:ffff:c791:8167
199.145.129.104 0:0:0:0:0:ffff:c791:8168
199.145.129.105 0:0:0:0:0:ffff:c791:8169
199.145.129.106 0:0:0:0:0:ffff:c791:816a
199.145.129.107 0:0:0:0:0:ffff:c791:816b
199.145.129.108 0:0:0:0:0:ffff:c791:816c
199.145.129.109 0:0:0:0:0:ffff:c791:816d
199.145.129.110 0:0:0:0:0:ffff:c791:816e
199.145.129.111 0:0:0:0:0:ffff:c791:816f
199.145.129.112 0:0:0:0:0:ffff:c791:8170
199.145.129.113 0:0:0:0:0:ffff:c791:8171
199.145.129.114 0:0:0:0:0:ffff:c791:8172
199.145.129.115 0:0:0:0:0:ffff:c791:8173
199.145.129.116 0:0:0:0:0:ffff:c791:8174
199.145.129.117 0:0:0:0:0:ffff:c791:8175
199.145.129.118 0:0:0:0:0:ffff:c791:8176
199.145.129.119 0:0:0:0:0:ffff:c791:8177
199.145.129.120 0:0:0:0:0:ffff:c791:8178


199.145.129.121 0:0:0:0:0:ffff:c791:8179
199.145.129.122 0:0:0:0:0:ffff:c791:817a
199.145.129.123 0:0:0:0:0:ffff:c791:817b
199.145.129.124 0:0:0:0:0:ffff:c791:817c
199.145.129.125 0:0:0:0:0:ffff:c791:817d
199.145.129.126 0:0:0:0:0:ffff:c791:817e
199.145.129.127 0:0:0:0:0:ffff:c791:817f
199.145.129.128 0:0:0:0:0:ffff:c791:8180
199.145.129.129 0:0:0:0:0:ffff:c791:8181
199.145.129.130 0:0:0:0:0:ffff:c791:8182
199.145.129.131 0:0:0:0:0:ffff:c791:8183
199.145.129.132 0:0:0:0:0:ffff:c791:8184
199.145.129.133 0:0:0:0:0:ffff:c791:8185
199.145.129.134 0:0:0:0:0:ffff:c791:8186
199.145.129.135 0:0:0:0:0:ffff:c791:8187
199.145.129.136 0:0:0:0:0:ffff:c791:8188
199.145.129.137 0:0:0:0:0:ffff:c791:8189
199.145.129.138 0:0:0:0:0:ffff:c791:818a
199.145.129.139 0:0:0:0:0:ffff:c791:818b
199.145.129.140 0:0:0:0:0:ffff:c791:818c
199.145.129.141 0:0:0:0:0:ffff:c791:818d
199.145.129.142 0:0:0:0:0:ffff:c791:818e
199.145.129.143 0:0:0:0:0:ffff:c791:818f
199.145.129.144 0:0:0:0:0:ffff:c791:8190
199.145.129.145 0:0:0:0:0:ffff:c791:8191
199.145.129.146 0:0:0:0:0:ffff:c791:8192
199.145.129.147 0:0:0:0:0:ffff:c791:8193
199.145.129.148 0:0:0:0:0:ffff:c791:8194
199.145.129.149 0:0:0:0:0:ffff:c791:8195
199.145.129.150 0:0:0:0:0:ffff:c791:8196
199.145.129.151 0:0:0:0:0:ffff:c791:8197
199.145.129.152 0:0:0:0:0:ffff:c791:8198
199.145.129.153 0:0:0:0:0:ffff:c791:8199
199.145.129.154 0:0:0:0:0:ffff:c791:819a
199.145.129.155 0:0:0:0:0:ffff:c791:819b
199.145.129.156 0:0:0:0:0:ffff:c791:819c
199.145.129.157 0:0:0:0:0:ffff:c791:819d
199.145.129.158 0:0:0:0:0:ffff:c791:819e
199.145.129.159 0:0:0:0:0:ffff:c791:819f
199.145.129.160 0:0:0:0:0:ffff:c791:81a0
199.145.129.161 0:0:0:0:0:ffff:c791:81a1
199.145.129.162 0:0:0:0:0:ffff:c791:81a2
199.145.129.163 0:0:0:0:0:ffff:c791:81a3
199.145.129.164 0:0:0:0:0:ffff:c791:81a4
199.145.129.165 0:0:0:0:0:ffff:c791:81a5
199.145.129.166 0:0:0:0:0:ffff:c791:81a6
199.145.129.167 0:0:0:0:0:ffff:c791:81a7
199.145.129.168 0:0:0:0:0:ffff:c791:81a8
199.145.129.169 0:0:0:0:0:ffff:c791:81a9
199.145.129.170 0:0:0:0:0:ffff:c791:81aa
199.145.129.171 0:0:0:0:0:ffff:c791:81ab
199.145.129.172 0:0:0:0:0:ffff:c791:81ac
199.145.129.173 0:0:0:0:0:ffff:c791:81ad
199.145.129.174 0:0:0:0:0:ffff:c791:81ae
199.145.129.175 0:0:0:0:0:ffff:c791:81af
199.145.129.176 0:0:0:0:0:ffff:c791:81b0
199.145.129.177 0:0:0:0:0:ffff:c791:81b1
199.145.129.178 0:0:0:0:0:ffff:c791:81b2
199.145.129.179 0:0:0:0:0:ffff:c791:81b3
199.145.129.180 0:0:0:0:0:ffff:c791:81b4


199.145.129.181 0:0:0:0:0:ffff:c791:81b5
199.145.129.182 0:0:0:0:0:ffff:c791:81b6
199.145.129.183 0:0:0:0:0:ffff:c791:81b7
199.145.129.184 0:0:0:0:0:ffff:c791:81b8
199.145.129.185 0:0:0:0:0:ffff:c791:81b9
199.145.129.186 0:0:0:0:0:ffff:c791:81ba
199.145.129.187 0:0:0:0:0:ffff:c791:81bb
199.145.129.188 0:0:0:0:0:ffff:c791:81bc
199.145.129.189 0:0:0:0:0:ffff:c791:81bd
199.145.129.190 0:0:0:0:0:ffff:c791:81be
199.145.129.191 0:0:0:0:0:ffff:c791:81bf
199.145.129.192 0:0:0:0:0:ffff:c791:81c0
199.145.129.193 0:0:0:0:0:ffff:c791:81c1
199.145.129.194 0:0:0:0:0:ffff:c791:81c2
199.145.129.195 0:0:0:0:0:ffff:c791:81c3
199.145.129.196 0:0:0:0:0:ffff:c791:81c4
199.145.129.197 0:0:0:0:0:ffff:c791:81c5
199.145.129.198 0:0:0:0:0:ffff:c791:81c6
199.145.129.199 0:0:0:0:0:ffff:c791:81c7
199.145.129.200 0:0:0:0:0:ffff:c791:81c8
199.145.129.201 0:0:0:0:0:ffff:c791:81c9
199.145.129.202 0:0:0:0:0:ffff:c791:81ca
199.145.129.203 0:0:0:0:0:ffff:c791:81cb
199.145.129.204 0:0:0:0:0:ffff:c791:81cc
199.145.129.205 0:0:0:0:0:ffff:c791:81cd
199.145.129.206 0:0:0:0:0:ffff:c791:81ce
199.145.129.207 0:0:0:0:0:ffff:c791:81cf
199.145.129.208 0:0:0:0:0:ffff:c791:81d0
199.145.129.209 0:0:0:0:0:ffff:c791:81d1
199.145.129.210 0:0:0:0:0:ffff:c791:81d2
199.145.129.211 0:0:0:0:0:ffff:c791:81d3
199.145.129.212 0:0:0:0:0:ffff:c791:81d4
199.145.129.213 0:0:0:0:0:ffff:c791:81d5
199.145.129.214 0:0:0:0:0:ffff:c791:81d6
199.145.129.215 0:0:0:0:0:ffff:c791:81d7
199.145.129.216 0:0:0:0:0:ffff:c791:81d8
199.145.129.217 0:0:0:0:0:ffff:c791:81d9
199.145.129.218 0:0:0:0:0:ffff:c791:81da
199.145.129.219 0:0:0:0:0:ffff:c791:81db
199.145.129.220 0:0:0:0:0:ffff:c791:81dc
199.145.129.221 0:0:0:0:0:ffff:c791:81dd
199.145.129.222 0:0:0:0:0:ffff:c791:81de
199.145.129.223 0:0:0:0:0:ffff:c791:81df
199.145.129.224 0:0:0:0:0:ffff:c791:81e0
199.145.129.225 0:0:0:0:0:ffff:c791:81e1
199.145.129.226 0:0:0:0:0:ffff:c791:81e2
199.145.129.227 0:0:0:0:0:ffff:c791:81e3
199.145.129.228 0:0:0:0:0:ffff:c791:81e4
199.145.129.229 0:0:0:0:0:ffff:c791:81e5
199.145.129.230 0:0:0:0:0:ffff:c791:81e6
199.145.129.231 0:0:0:0:0:ffff:c791:81e7
199.145.129.232 0:0:0:0:0:ffff:c791:81e8
199.145.129.233 0:0:0:0:0:ffff:c791:81e9
199.145.129.234 0:0:0:0:0:ffff:c791:81ea
199.145.129.235 0:0:0:0:0:ffff:c791:81eb
199.145.129.236 0:0:0:0:0:ffff:c791:81ec
199.145.129.237 0:0:0:0:0:ffff:c791:81ed
199.145.129.238 0:0:0:0:0:ffff:c791:81ee
199.145.129.239 0:0:0:0:0:ffff:c791:81ef
199.145.129.240 0:0:0:0:0:ffff:c791:81f0
199.145.129.241 0:0:0:0:0:ffff:c791:81f1
199.145.129.242 0:0:0:0:0:ffff:c791:81f2
199.145.129.243 0:0:0:0:0:ffff:c791:81f3
199.145.129.244 0:0:0:0:0:ffff:c791:81f4
199.145.129.245 0:0:0:0:0:ffff:c791:81f5
199.145.129.246 0:0:0:0:0:ffff:c791:81f6
199.145.129.247 0:0:0:0:0:ffff:c791:81f7
199.145.129.248 0:0:0:0:0:ffff:c791:81f8
199.145.129.249 0:0:0:0:0:ffff:c791:81f9
199.145.129.250 0:0:0:0:0:ffff:c791:81fa
199.145.129.251 0:0:0:0:0:ffff:c791:81fb
199.145.129.252 0:0:0:0:0:ffff:c791:81fc
199.145.129.253 0:0:0:0:0:ffff:c791:81fd
199.145.129.254 0:0:0:0:0:ffff:c791:81fe
199.145.129.255 0:0:0:0:0:ffff:c791:81ff


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.