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
28.191.1.1 0:0:0:0:0:ffff:1cbf:101
28.191.1.2 0:0:0:0:0:ffff:1cbf:102
28.191.1.3 0:0:0:0:0:ffff:1cbf:103
28.191.1.4 0:0:0:0:0:ffff:1cbf:104
28.191.1.5 0:0:0:0:0:ffff:1cbf:105
28.191.1.6 0:0:0:0:0:ffff:1cbf:106
28.191.1.7 0:0:0:0:0:ffff:1cbf:107
28.191.1.8 0:0:0:0:0:ffff:1cbf:108
28.191.1.9 0:0:0:0:0:ffff:1cbf:109
28.191.1.10 0:0:0:0:0:ffff:1cbf:10a
28.191.1.11 0:0:0:0:0:ffff:1cbf:10b
28.191.1.12 0:0:0:0:0:ffff:1cbf:10c
28.191.1.13 0:0:0:0:0:ffff:1cbf:10d
28.191.1.14 0:0:0:0:0:ffff:1cbf:10e
28.191.1.15 0:0:0:0:0:ffff:1cbf:10f
28.191.1.16 0:0:0:0:0:ffff:1cbf:110
28.191.1.17 0:0:0:0:0:ffff:1cbf:111
28.191.1.18 0:0:0:0:0:ffff:1cbf:112
28.191.1.19 0:0:0:0:0:ffff:1cbf:113
28.191.1.20 0:0:0:0:0:ffff:1cbf:114
28.191.1.21 0:0:0:0:0:ffff:1cbf:115
28.191.1.22 0:0:0:0:0:ffff:1cbf:116
28.191.1.23 0:0:0:0:0:ffff:1cbf:117
28.191.1.24 0:0:0:0:0:ffff:1cbf:118
28.191.1.25 0:0:0:0:0:ffff:1cbf:119
28.191.1.26 0:0:0:0:0:ffff:1cbf:11a
28.191.1.27 0:0:0:0:0:ffff:1cbf:11b
28.191.1.28 0:0:0:0:0:ffff:1cbf:11c
28.191.1.29 0:0:0:0:0:ffff:1cbf:11d
28.191.1.30 0:0:0:0:0:ffff:1cbf:11e
28.191.1.31 0:0:0:0:0:ffff:1cbf:11f
28.191.1.32 0:0:0:0:0:ffff:1cbf:120
28.191.1.33 0:0:0:0:0:ffff:1cbf:121
28.191.1.34 0:0:0:0:0:ffff:1cbf:122
28.191.1.35 0:0:0:0:0:ffff:1cbf:123
28.191.1.36 0:0:0:0:0:ffff:1cbf:124
28.191.1.37 0:0:0:0:0:ffff:1cbf:125
28.191.1.38 0:0:0:0:0:ffff:1cbf:126
28.191.1.39 0:0:0:0:0:ffff:1cbf:127
28.191.1.40 0:0:0:0:0:ffff:1cbf:128
28.191.1.41 0:0:0:0:0:ffff:1cbf:129
28.191.1.42 0:0:0:0:0:ffff:1cbf:12a
28.191.1.43 0:0:0:0:0:ffff:1cbf:12b
28.191.1.44 0:0:0:0:0:ffff:1cbf:12c
28.191.1.45 0:0:0:0:0:ffff:1cbf:12d
28.191.1.46 0:0:0:0:0:ffff:1cbf:12e
28.191.1.47 0:0:0:0:0:ffff:1cbf:12f
28.191.1.48 0:0:0:0:0:ffff:1cbf:130
28.191.1.49 0:0:0:0:0:ffff:1cbf:131
28.191.1.50 0:0:0:0:0:ffff:1cbf:132
28.191.1.51 0:0:0:0:0:ffff:1cbf:133
28.191.1.52 0:0:0:0:0:ffff:1cbf:134
28.191.1.53 0:0:0:0:0:ffff:1cbf:135
28.191.1.54 0:0:0:0:0:ffff:1cbf:136
28.191.1.55 0:0:0:0:0:ffff:1cbf:137
28.191.1.56 0:0:0:0:0:ffff:1cbf:138
28.191.1.57 0:0:0:0:0:ffff:1cbf:139
28.191.1.58 0:0:0:0:0:ffff:1cbf:13a
28.191.1.59 0:0:0:0:0:ffff:1cbf:13b
28.191.1.60 0:0:0:0:0:ffff:1cbf:13c


28.191.1.61 0:0:0:0:0:ffff:1cbf:13d
28.191.1.62 0:0:0:0:0:ffff:1cbf:13e
28.191.1.63 0:0:0:0:0:ffff:1cbf:13f
28.191.1.64 0:0:0:0:0:ffff:1cbf:140
28.191.1.65 0:0:0:0:0:ffff:1cbf:141
28.191.1.66 0:0:0:0:0:ffff:1cbf:142
28.191.1.67 0:0:0:0:0:ffff:1cbf:143
28.191.1.68 0:0:0:0:0:ffff:1cbf:144
28.191.1.69 0:0:0:0:0:ffff:1cbf:145
28.191.1.70 0:0:0:0:0:ffff:1cbf:146
28.191.1.71 0:0:0:0:0:ffff:1cbf:147
28.191.1.72 0:0:0:0:0:ffff:1cbf:148
28.191.1.73 0:0:0:0:0:ffff:1cbf:149
28.191.1.74 0:0:0:0:0:ffff:1cbf:14a
28.191.1.75 0:0:0:0:0:ffff:1cbf:14b
28.191.1.76 0:0:0:0:0:ffff:1cbf:14c
28.191.1.77 0:0:0:0:0:ffff:1cbf:14d
28.191.1.78 0:0:0:0:0:ffff:1cbf:14e
28.191.1.79 0:0:0:0:0:ffff:1cbf:14f
28.191.1.80 0:0:0:0:0:ffff:1cbf:150
28.191.1.81 0:0:0:0:0:ffff:1cbf:151
28.191.1.82 0:0:0:0:0:ffff:1cbf:152
28.191.1.83 0:0:0:0:0:ffff:1cbf:153
28.191.1.84 0:0:0:0:0:ffff:1cbf:154
28.191.1.85 0:0:0:0:0:ffff:1cbf:155
28.191.1.86 0:0:0:0:0:ffff:1cbf:156
28.191.1.87 0:0:0:0:0:ffff:1cbf:157
28.191.1.88 0:0:0:0:0:ffff:1cbf:158
28.191.1.89 0:0:0:0:0:ffff:1cbf:159
28.191.1.90 0:0:0:0:0:ffff:1cbf:15a
28.191.1.91 0:0:0:0:0:ffff:1cbf:15b
28.191.1.92 0:0:0:0:0:ffff:1cbf:15c
28.191.1.93 0:0:0:0:0:ffff:1cbf:15d
28.191.1.94 0:0:0:0:0:ffff:1cbf:15e
28.191.1.95 0:0:0:0:0:ffff:1cbf:15f
28.191.1.96 0:0:0:0:0:ffff:1cbf:160
28.191.1.97 0:0:0:0:0:ffff:1cbf:161
28.191.1.98 0:0:0:0:0:ffff:1cbf:162
28.191.1.99 0:0:0:0:0:ffff:1cbf:163
28.191.1.100 0:0:0:0:0:ffff:1cbf:164
28.191.1.101 0:0:0:0:0:ffff:1cbf:165
28.191.1.102 0:0:0:0:0:ffff:1cbf:166
28.191.1.103 0:0:0:0:0:ffff:1cbf:167
28.191.1.104 0:0:0:0:0:ffff:1cbf:168
28.191.1.105 0:0:0:0:0:ffff:1cbf:169
28.191.1.106 0:0:0:0:0:ffff:1cbf:16a
28.191.1.107 0:0:0:0:0:ffff:1cbf:16b
28.191.1.108 0:0:0:0:0:ffff:1cbf:16c
28.191.1.109 0:0:0:0:0:ffff:1cbf:16d
28.191.1.110 0:0:0:0:0:ffff:1cbf:16e
28.191.1.111 0:0:0:0:0:ffff:1cbf:16f
28.191.1.112 0:0:0:0:0:ffff:1cbf:170
28.191.1.113 0:0:0:0:0:ffff:1cbf:171
28.191.1.114 0:0:0:0:0:ffff:1cbf:172
28.191.1.115 0:0:0:0:0:ffff:1cbf:173
28.191.1.116 0:0:0:0:0:ffff:1cbf:174
28.191.1.117 0:0:0:0:0:ffff:1cbf:175
28.191.1.118 0:0:0:0:0:ffff:1cbf:176
28.191.1.119 0:0:0:0:0:ffff:1cbf:177
28.191.1.120 0:0:0:0:0:ffff:1cbf:178


28.191.1.121 0:0:0:0:0:ffff:1cbf:179
28.191.1.122 0:0:0:0:0:ffff:1cbf:17a
28.191.1.123 0:0:0:0:0:ffff:1cbf:17b
28.191.1.124 0:0:0:0:0:ffff:1cbf:17c
28.191.1.125 0:0:0:0:0:ffff:1cbf:17d
28.191.1.126 0:0:0:0:0:ffff:1cbf:17e
28.191.1.127 0:0:0:0:0:ffff:1cbf:17f
28.191.1.128 0:0:0:0:0:ffff:1cbf:180
28.191.1.129 0:0:0:0:0:ffff:1cbf:181
28.191.1.130 0:0:0:0:0:ffff:1cbf:182
28.191.1.131 0:0:0:0:0:ffff:1cbf:183
28.191.1.132 0:0:0:0:0:ffff:1cbf:184
28.191.1.133 0:0:0:0:0:ffff:1cbf:185
28.191.1.134 0:0:0:0:0:ffff:1cbf:186
28.191.1.135 0:0:0:0:0:ffff:1cbf:187
28.191.1.136 0:0:0:0:0:ffff:1cbf:188
28.191.1.137 0:0:0:0:0:ffff:1cbf:189
28.191.1.138 0:0:0:0:0:ffff:1cbf:18a
28.191.1.139 0:0:0:0:0:ffff:1cbf:18b
28.191.1.140 0:0:0:0:0:ffff:1cbf:18c
28.191.1.141 0:0:0:0:0:ffff:1cbf:18d
28.191.1.142 0:0:0:0:0:ffff:1cbf:18e
28.191.1.143 0:0:0:0:0:ffff:1cbf:18f
28.191.1.144 0:0:0:0:0:ffff:1cbf:190
28.191.1.145 0:0:0:0:0:ffff:1cbf:191
28.191.1.146 0:0:0:0:0:ffff:1cbf:192
28.191.1.147 0:0:0:0:0:ffff:1cbf:193
28.191.1.148 0:0:0:0:0:ffff:1cbf:194
28.191.1.149 0:0:0:0:0:ffff:1cbf:195
28.191.1.150 0:0:0:0:0:ffff:1cbf:196
28.191.1.151 0:0:0:0:0:ffff:1cbf:197
28.191.1.152 0:0:0:0:0:ffff:1cbf:198
28.191.1.153 0:0:0:0:0:ffff:1cbf:199
28.191.1.154 0:0:0:0:0:ffff:1cbf:19a
28.191.1.155 0:0:0:0:0:ffff:1cbf:19b
28.191.1.156 0:0:0:0:0:ffff:1cbf:19c
28.191.1.157 0:0:0:0:0:ffff:1cbf:19d
28.191.1.158 0:0:0:0:0:ffff:1cbf:19e
28.191.1.159 0:0:0:0:0:ffff:1cbf:19f
28.191.1.160 0:0:0:0:0:ffff:1cbf:1a0
28.191.1.161 0:0:0:0:0:ffff:1cbf:1a1
28.191.1.162 0:0:0:0:0:ffff:1cbf:1a2
28.191.1.163 0:0:0:0:0:ffff:1cbf:1a3
28.191.1.164 0:0:0:0:0:ffff:1cbf:1a4
28.191.1.165 0:0:0:0:0:ffff:1cbf:1a5
28.191.1.166 0:0:0:0:0:ffff:1cbf:1a6
28.191.1.167 0:0:0:0:0:ffff:1cbf:1a7
28.191.1.168 0:0:0:0:0:ffff:1cbf:1a8
28.191.1.169 0:0:0:0:0:ffff:1cbf:1a9
28.191.1.170 0:0:0:0:0:ffff:1cbf:1aa
28.191.1.171 0:0:0:0:0:ffff:1cbf:1ab
28.191.1.172 0:0:0:0:0:ffff:1cbf:1ac
28.191.1.173 0:0:0:0:0:ffff:1cbf:1ad
28.191.1.174 0:0:0:0:0:ffff:1cbf:1ae
28.191.1.175 0:0:0:0:0:ffff:1cbf:1af
28.191.1.176 0:0:0:0:0:ffff:1cbf:1b0
28.191.1.177 0:0:0:0:0:ffff:1cbf:1b1
28.191.1.178 0:0:0:0:0:ffff:1cbf:1b2
28.191.1.179 0:0:0:0:0:ffff:1cbf:1b3
28.191.1.180 0:0:0:0:0:ffff:1cbf:1b4


28.191.1.181 0:0:0:0:0:ffff:1cbf:1b5
28.191.1.182 0:0:0:0:0:ffff:1cbf:1b6
28.191.1.183 0:0:0:0:0:ffff:1cbf:1b7
28.191.1.184 0:0:0:0:0:ffff:1cbf:1b8
28.191.1.185 0:0:0:0:0:ffff:1cbf:1b9
28.191.1.186 0:0:0:0:0:ffff:1cbf:1ba
28.191.1.187 0:0:0:0:0:ffff:1cbf:1bb
28.191.1.188 0:0:0:0:0:ffff:1cbf:1bc
28.191.1.189 0:0:0:0:0:ffff:1cbf:1bd
28.191.1.190 0:0:0:0:0:ffff:1cbf:1be
28.191.1.191 0:0:0:0:0:ffff:1cbf:1bf
28.191.1.192 0:0:0:0:0:ffff:1cbf:1c0
28.191.1.193 0:0:0:0:0:ffff:1cbf:1c1
28.191.1.194 0:0:0:0:0:ffff:1cbf:1c2
28.191.1.195 0:0:0:0:0:ffff:1cbf:1c3
28.191.1.196 0:0:0:0:0:ffff:1cbf:1c4
28.191.1.197 0:0:0:0:0:ffff:1cbf:1c5
28.191.1.198 0:0:0:0:0:ffff:1cbf:1c6
28.191.1.199 0:0:0:0:0:ffff:1cbf:1c7
28.191.1.200 0:0:0:0:0:ffff:1cbf:1c8
28.191.1.201 0:0:0:0:0:ffff:1cbf:1c9
28.191.1.202 0:0:0:0:0:ffff:1cbf:1ca
28.191.1.203 0:0:0:0:0:ffff:1cbf:1cb
28.191.1.204 0:0:0:0:0:ffff:1cbf:1cc
28.191.1.205 0:0:0:0:0:ffff:1cbf:1cd
28.191.1.206 0:0:0:0:0:ffff:1cbf:1ce
28.191.1.207 0:0:0:0:0:ffff:1cbf:1cf
28.191.1.208 0:0:0:0:0:ffff:1cbf:1d0
28.191.1.209 0:0:0:0:0:ffff:1cbf:1d1
28.191.1.210 0:0:0:0:0:ffff:1cbf:1d2
28.191.1.211 0:0:0:0:0:ffff:1cbf:1d3
28.191.1.212 0:0:0:0:0:ffff:1cbf:1d4
28.191.1.213 0:0:0:0:0:ffff:1cbf:1d5
28.191.1.214 0:0:0:0:0:ffff:1cbf:1d6
28.191.1.215 0:0:0:0:0:ffff:1cbf:1d7
28.191.1.216 0:0:0:0:0:ffff:1cbf:1d8
28.191.1.217 0:0:0:0:0:ffff:1cbf:1d9
28.191.1.218 0:0:0:0:0:ffff:1cbf:1da
28.191.1.219 0:0:0:0:0:ffff:1cbf:1db
28.191.1.220 0:0:0:0:0:ffff:1cbf:1dc
28.191.1.221 0:0:0:0:0:ffff:1cbf:1dd
28.191.1.222 0:0:0:0:0:ffff:1cbf:1de
28.191.1.223 0:0:0:0:0:ffff:1cbf:1df
28.191.1.224 0:0:0:0:0:ffff:1cbf:1e0
28.191.1.225 0:0:0:0:0:ffff:1cbf:1e1
28.191.1.226 0:0:0:0:0:ffff:1cbf:1e2
28.191.1.227 0:0:0:0:0:ffff:1cbf:1e3
28.191.1.228 0:0:0:0:0:ffff:1cbf:1e4
28.191.1.229 0:0:0:0:0:ffff:1cbf:1e5
28.191.1.230 0:0:0:0:0:ffff:1cbf:1e6
28.191.1.231 0:0:0:0:0:ffff:1cbf:1e7
28.191.1.232 0:0:0:0:0:ffff:1cbf:1e8
28.191.1.233 0:0:0:0:0:ffff:1cbf:1e9
28.191.1.234 0:0:0:0:0:ffff:1cbf:1ea
28.191.1.235 0:0:0:0:0:ffff:1cbf:1eb
28.191.1.236 0:0:0:0:0:ffff:1cbf:1ec
28.191.1.237 0:0:0:0:0:ffff:1cbf:1ed
28.191.1.238 0:0:0:0:0:ffff:1cbf:1ee
28.191.1.239 0:0:0:0:0:ffff:1cbf:1ef
28.191.1.240 0:0:0:0:0:ffff:1cbf:1f0
28.191.1.241 0:0:0:0:0:ffff:1cbf:1f1
28.191.1.242 0:0:0:0:0:ffff:1cbf:1f2
28.191.1.243 0:0:0:0:0:ffff:1cbf:1f3
28.191.1.244 0:0:0:0:0:ffff:1cbf:1f4
28.191.1.245 0:0:0:0:0:ffff:1cbf:1f5
28.191.1.246 0:0:0:0:0:ffff:1cbf:1f6
28.191.1.247 0:0:0:0:0:ffff:1cbf:1f7
28.191.1.248 0:0:0:0:0:ffff:1cbf:1f8
28.191.1.249 0:0:0:0:0:ffff:1cbf:1f9
28.191.1.250 0:0:0:0:0:ffff:1cbf:1fa
28.191.1.251 0:0:0:0:0:ffff:1cbf:1fb
28.191.1.252 0:0:0:0:0:ffff:1cbf:1fc
28.191.1.253 0:0:0:0:0:ffff:1cbf:1fd
28.191.1.254 0:0:0:0:0:ffff:1cbf:1fe
28.191.1.255 0:0:0:0:0:ffff:1cbf:1ff


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.