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
165.77.81.1 0:0:0:0:0:ffff:a54d:5101
165.77.81.2 0:0:0:0:0:ffff:a54d:5102
165.77.81.3 0:0:0:0:0:ffff:a54d:5103
165.77.81.4 0:0:0:0:0:ffff:a54d:5104
165.77.81.5 0:0:0:0:0:ffff:a54d:5105
165.77.81.6 0:0:0:0:0:ffff:a54d:5106
165.77.81.7 0:0:0:0:0:ffff:a54d:5107
165.77.81.8 0:0:0:0:0:ffff:a54d:5108
165.77.81.9 0:0:0:0:0:ffff:a54d:5109
165.77.81.10 0:0:0:0:0:ffff:a54d:510a
165.77.81.11 0:0:0:0:0:ffff:a54d:510b
165.77.81.12 0:0:0:0:0:ffff:a54d:510c
165.77.81.13 0:0:0:0:0:ffff:a54d:510d
165.77.81.14 0:0:0:0:0:ffff:a54d:510e
165.77.81.15 0:0:0:0:0:ffff:a54d:510f
165.77.81.16 0:0:0:0:0:ffff:a54d:5110
165.77.81.17 0:0:0:0:0:ffff:a54d:5111
165.77.81.18 0:0:0:0:0:ffff:a54d:5112
165.77.81.19 0:0:0:0:0:ffff:a54d:5113
165.77.81.20 0:0:0:0:0:ffff:a54d:5114
165.77.81.21 0:0:0:0:0:ffff:a54d:5115
165.77.81.22 0:0:0:0:0:ffff:a54d:5116
165.77.81.23 0:0:0:0:0:ffff:a54d:5117
165.77.81.24 0:0:0:0:0:ffff:a54d:5118
165.77.81.25 0:0:0:0:0:ffff:a54d:5119
165.77.81.26 0:0:0:0:0:ffff:a54d:511a
165.77.81.27 0:0:0:0:0:ffff:a54d:511b
165.77.81.28 0:0:0:0:0:ffff:a54d:511c
165.77.81.29 0:0:0:0:0:ffff:a54d:511d
165.77.81.30 0:0:0:0:0:ffff:a54d:511e
165.77.81.31 0:0:0:0:0:ffff:a54d:511f
165.77.81.32 0:0:0:0:0:ffff:a54d:5120
165.77.81.33 0:0:0:0:0:ffff:a54d:5121
165.77.81.34 0:0:0:0:0:ffff:a54d:5122
165.77.81.35 0:0:0:0:0:ffff:a54d:5123
165.77.81.36 0:0:0:0:0:ffff:a54d:5124
165.77.81.37 0:0:0:0:0:ffff:a54d:5125
165.77.81.38 0:0:0:0:0:ffff:a54d:5126
165.77.81.39 0:0:0:0:0:ffff:a54d:5127
165.77.81.40 0:0:0:0:0:ffff:a54d:5128
165.77.81.41 0:0:0:0:0:ffff:a54d:5129
165.77.81.42 0:0:0:0:0:ffff:a54d:512a
165.77.81.43 0:0:0:0:0:ffff:a54d:512b
165.77.81.44 0:0:0:0:0:ffff:a54d:512c
165.77.81.45 0:0:0:0:0:ffff:a54d:512d
165.77.81.46 0:0:0:0:0:ffff:a54d:512e
165.77.81.47 0:0:0:0:0:ffff:a54d:512f
165.77.81.48 0:0:0:0:0:ffff:a54d:5130
165.77.81.49 0:0:0:0:0:ffff:a54d:5131
165.77.81.50 0:0:0:0:0:ffff:a54d:5132
165.77.81.51 0:0:0:0:0:ffff:a54d:5133
165.77.81.52 0:0:0:0:0:ffff:a54d:5134
165.77.81.53 0:0:0:0:0:ffff:a54d:5135
165.77.81.54 0:0:0:0:0:ffff:a54d:5136
165.77.81.55 0:0:0:0:0:ffff:a54d:5137
165.77.81.56 0:0:0:0:0:ffff:a54d:5138
165.77.81.57 0:0:0:0:0:ffff:a54d:5139
165.77.81.58 0:0:0:0:0:ffff:a54d:513a
165.77.81.59 0:0:0:0:0:ffff:a54d:513b
165.77.81.60 0:0:0:0:0:ffff:a54d:513c


165.77.81.61 0:0:0:0:0:ffff:a54d:513d
165.77.81.62 0:0:0:0:0:ffff:a54d:513e
165.77.81.63 0:0:0:0:0:ffff:a54d:513f
165.77.81.64 0:0:0:0:0:ffff:a54d:5140
165.77.81.65 0:0:0:0:0:ffff:a54d:5141
165.77.81.66 0:0:0:0:0:ffff:a54d:5142
165.77.81.67 0:0:0:0:0:ffff:a54d:5143
165.77.81.68 0:0:0:0:0:ffff:a54d:5144
165.77.81.69 0:0:0:0:0:ffff:a54d:5145
165.77.81.70 0:0:0:0:0:ffff:a54d:5146
165.77.81.71 0:0:0:0:0:ffff:a54d:5147
165.77.81.72 0:0:0:0:0:ffff:a54d:5148
165.77.81.73 0:0:0:0:0:ffff:a54d:5149
165.77.81.74 0:0:0:0:0:ffff:a54d:514a
165.77.81.75 0:0:0:0:0:ffff:a54d:514b
165.77.81.76 0:0:0:0:0:ffff:a54d:514c
165.77.81.77 0:0:0:0:0:ffff:a54d:514d
165.77.81.78 0:0:0:0:0:ffff:a54d:514e
165.77.81.79 0:0:0:0:0:ffff:a54d:514f
165.77.81.80 0:0:0:0:0:ffff:a54d:5150
165.77.81.81 0:0:0:0:0:ffff:a54d:5151
165.77.81.82 0:0:0:0:0:ffff:a54d:5152
165.77.81.83 0:0:0:0:0:ffff:a54d:5153
165.77.81.84 0:0:0:0:0:ffff:a54d:5154
165.77.81.85 0:0:0:0:0:ffff:a54d:5155
165.77.81.86 0:0:0:0:0:ffff:a54d:5156
165.77.81.87 0:0:0:0:0:ffff:a54d:5157
165.77.81.88 0:0:0:0:0:ffff:a54d:5158
165.77.81.89 0:0:0:0:0:ffff:a54d:5159
165.77.81.90 0:0:0:0:0:ffff:a54d:515a
165.77.81.91 0:0:0:0:0:ffff:a54d:515b
165.77.81.92 0:0:0:0:0:ffff:a54d:515c
165.77.81.93 0:0:0:0:0:ffff:a54d:515d
165.77.81.94 0:0:0:0:0:ffff:a54d:515e
165.77.81.95 0:0:0:0:0:ffff:a54d:515f
165.77.81.96 0:0:0:0:0:ffff:a54d:5160
165.77.81.97 0:0:0:0:0:ffff:a54d:5161
165.77.81.98 0:0:0:0:0:ffff:a54d:5162
165.77.81.99 0:0:0:0:0:ffff:a54d:5163
165.77.81.100 0:0:0:0:0:ffff:a54d:5164
165.77.81.101 0:0:0:0:0:ffff:a54d:5165
165.77.81.102 0:0:0:0:0:ffff:a54d:5166
165.77.81.103 0:0:0:0:0:ffff:a54d:5167
165.77.81.104 0:0:0:0:0:ffff:a54d:5168
165.77.81.105 0:0:0:0:0:ffff:a54d:5169
165.77.81.106 0:0:0:0:0:ffff:a54d:516a
165.77.81.107 0:0:0:0:0:ffff:a54d:516b
165.77.81.108 0:0:0:0:0:ffff:a54d:516c
165.77.81.109 0:0:0:0:0:ffff:a54d:516d
165.77.81.110 0:0:0:0:0:ffff:a54d:516e
165.77.81.111 0:0:0:0:0:ffff:a54d:516f
165.77.81.112 0:0:0:0:0:ffff:a54d:5170
165.77.81.113 0:0:0:0:0:ffff:a54d:5171
165.77.81.114 0:0:0:0:0:ffff:a54d:5172
165.77.81.115 0:0:0:0:0:ffff:a54d:5173
165.77.81.116 0:0:0:0:0:ffff:a54d:5174
165.77.81.117 0:0:0:0:0:ffff:a54d:5175
165.77.81.118 0:0:0:0:0:ffff:a54d:5176
165.77.81.119 0:0:0:0:0:ffff:a54d:5177
165.77.81.120 0:0:0:0:0:ffff:a54d:5178


165.77.81.121 0:0:0:0:0:ffff:a54d:5179
165.77.81.122 0:0:0:0:0:ffff:a54d:517a
165.77.81.123 0:0:0:0:0:ffff:a54d:517b
165.77.81.124 0:0:0:0:0:ffff:a54d:517c
165.77.81.125 0:0:0:0:0:ffff:a54d:517d
165.77.81.126 0:0:0:0:0:ffff:a54d:517e
165.77.81.127 0:0:0:0:0:ffff:a54d:517f
165.77.81.128 0:0:0:0:0:ffff:a54d:5180
165.77.81.129 0:0:0:0:0:ffff:a54d:5181
165.77.81.130 0:0:0:0:0:ffff:a54d:5182
165.77.81.131 0:0:0:0:0:ffff:a54d:5183
165.77.81.132 0:0:0:0:0:ffff:a54d:5184
165.77.81.133 0:0:0:0:0:ffff:a54d:5185
165.77.81.134 0:0:0:0:0:ffff:a54d:5186
165.77.81.135 0:0:0:0:0:ffff:a54d:5187
165.77.81.136 0:0:0:0:0:ffff:a54d:5188
165.77.81.137 0:0:0:0:0:ffff:a54d:5189
165.77.81.138 0:0:0:0:0:ffff:a54d:518a
165.77.81.139 0:0:0:0:0:ffff:a54d:518b
165.77.81.140 0:0:0:0:0:ffff:a54d:518c
165.77.81.141 0:0:0:0:0:ffff:a54d:518d
165.77.81.142 0:0:0:0:0:ffff:a54d:518e
165.77.81.143 0:0:0:0:0:ffff:a54d:518f
165.77.81.144 0:0:0:0:0:ffff:a54d:5190
165.77.81.145 0:0:0:0:0:ffff:a54d:5191
165.77.81.146 0:0:0:0:0:ffff:a54d:5192
165.77.81.147 0:0:0:0:0:ffff:a54d:5193
165.77.81.148 0:0:0:0:0:ffff:a54d:5194
165.77.81.149 0:0:0:0:0:ffff:a54d:5195
165.77.81.150 0:0:0:0:0:ffff:a54d:5196
165.77.81.151 0:0:0:0:0:ffff:a54d:5197
165.77.81.152 0:0:0:0:0:ffff:a54d:5198
165.77.81.153 0:0:0:0:0:ffff:a54d:5199
165.77.81.154 0:0:0:0:0:ffff:a54d:519a
165.77.81.155 0:0:0:0:0:ffff:a54d:519b
165.77.81.156 0:0:0:0:0:ffff:a54d:519c
165.77.81.157 0:0:0:0:0:ffff:a54d:519d
165.77.81.158 0:0:0:0:0:ffff:a54d:519e
165.77.81.159 0:0:0:0:0:ffff:a54d:519f
165.77.81.160 0:0:0:0:0:ffff:a54d:51a0
165.77.81.161 0:0:0:0:0:ffff:a54d:51a1
165.77.81.162 0:0:0:0:0:ffff:a54d:51a2
165.77.81.163 0:0:0:0:0:ffff:a54d:51a3
165.77.81.164 0:0:0:0:0:ffff:a54d:51a4
165.77.81.165 0:0:0:0:0:ffff:a54d:51a5
165.77.81.166 0:0:0:0:0:ffff:a54d:51a6
165.77.81.167 0:0:0:0:0:ffff:a54d:51a7
165.77.81.168 0:0:0:0:0:ffff:a54d:51a8
165.77.81.169 0:0:0:0:0:ffff:a54d:51a9
165.77.81.170 0:0:0:0:0:ffff:a54d:51aa
165.77.81.171 0:0:0:0:0:ffff:a54d:51ab
165.77.81.172 0:0:0:0:0:ffff:a54d:51ac
165.77.81.173 0:0:0:0:0:ffff:a54d:51ad
165.77.81.174 0:0:0:0:0:ffff:a54d:51ae
165.77.81.175 0:0:0:0:0:ffff:a54d:51af
165.77.81.176 0:0:0:0:0:ffff:a54d:51b0
165.77.81.177 0:0:0:0:0:ffff:a54d:51b1
165.77.81.178 0:0:0:0:0:ffff:a54d:51b2
165.77.81.179 0:0:0:0:0:ffff:a54d:51b3
165.77.81.180 0:0:0:0:0:ffff:a54d:51b4


165.77.81.181 0:0:0:0:0:ffff:a54d:51b5
165.77.81.182 0:0:0:0:0:ffff:a54d:51b6
165.77.81.183 0:0:0:0:0:ffff:a54d:51b7
165.77.81.184 0:0:0:0:0:ffff:a54d:51b8
165.77.81.185 0:0:0:0:0:ffff:a54d:51b9
165.77.81.186 0:0:0:0:0:ffff:a54d:51ba
165.77.81.187 0:0:0:0:0:ffff:a54d:51bb
165.77.81.188 0:0:0:0:0:ffff:a54d:51bc
165.77.81.189 0:0:0:0:0:ffff:a54d:51bd
165.77.81.190 0:0:0:0:0:ffff:a54d:51be
165.77.81.191 0:0:0:0:0:ffff:a54d:51bf
165.77.81.192 0:0:0:0:0:ffff:a54d:51c0
165.77.81.193 0:0:0:0:0:ffff:a54d:51c1
165.77.81.194 0:0:0:0:0:ffff:a54d:51c2
165.77.81.195 0:0:0:0:0:ffff:a54d:51c3
165.77.81.196 0:0:0:0:0:ffff:a54d:51c4
165.77.81.197 0:0:0:0:0:ffff:a54d:51c5
165.77.81.198 0:0:0:0:0:ffff:a54d:51c6
165.77.81.199 0:0:0:0:0:ffff:a54d:51c7
165.77.81.200 0:0:0:0:0:ffff:a54d:51c8
165.77.81.201 0:0:0:0:0:ffff:a54d:51c9
165.77.81.202 0:0:0:0:0:ffff:a54d:51ca
165.77.81.203 0:0:0:0:0:ffff:a54d:51cb
165.77.81.204 0:0:0:0:0:ffff:a54d:51cc
165.77.81.205 0:0:0:0:0:ffff:a54d:51cd
165.77.81.206 0:0:0:0:0:ffff:a54d:51ce
165.77.81.207 0:0:0:0:0:ffff:a54d:51cf
165.77.81.208 0:0:0:0:0:ffff:a54d:51d0
165.77.81.209 0:0:0:0:0:ffff:a54d:51d1
165.77.81.210 0:0:0:0:0:ffff:a54d:51d2
165.77.81.211 0:0:0:0:0:ffff:a54d:51d3
165.77.81.212 0:0:0:0:0:ffff:a54d:51d4
165.77.81.213 0:0:0:0:0:ffff:a54d:51d5
165.77.81.214 0:0:0:0:0:ffff:a54d:51d6
165.77.81.215 0:0:0:0:0:ffff:a54d:51d7
165.77.81.216 0:0:0:0:0:ffff:a54d:51d8
165.77.81.217 0:0:0:0:0:ffff:a54d:51d9
165.77.81.218 0:0:0:0:0:ffff:a54d:51da
165.77.81.219 0:0:0:0:0:ffff:a54d:51db
165.77.81.220 0:0:0:0:0:ffff:a54d:51dc
165.77.81.221 0:0:0:0:0:ffff:a54d:51dd
165.77.81.222 0:0:0:0:0:ffff:a54d:51de
165.77.81.223 0:0:0:0:0:ffff:a54d:51df
165.77.81.224 0:0:0:0:0:ffff:a54d:51e0
165.77.81.225 0:0:0:0:0:ffff:a54d:51e1
165.77.81.226 0:0:0:0:0:ffff:a54d:51e2
165.77.81.227 0:0:0:0:0:ffff:a54d:51e3
165.77.81.228 0:0:0:0:0:ffff:a54d:51e4
165.77.81.229 0:0:0:0:0:ffff:a54d:51e5
165.77.81.230 0:0:0:0:0:ffff:a54d:51e6
165.77.81.231 0:0:0:0:0:ffff:a54d:51e7
165.77.81.232 0:0:0:0:0:ffff:a54d:51e8
165.77.81.233 0:0:0:0:0:ffff:a54d:51e9
165.77.81.234 0:0:0:0:0:ffff:a54d:51ea
165.77.81.235 0:0:0:0:0:ffff:a54d:51eb
165.77.81.236 0:0:0:0:0:ffff:a54d:51ec
165.77.81.237 0:0:0:0:0:ffff:a54d:51ed
165.77.81.238 0:0:0:0:0:ffff:a54d:51ee
165.77.81.239 0:0:0:0:0:ffff:a54d:51ef
165.77.81.240 0:0:0:0:0:ffff:a54d:51f0
165.77.81.241 0:0:0:0:0:ffff:a54d:51f1
165.77.81.242 0:0:0:0:0:ffff:a54d:51f2
165.77.81.243 0:0:0:0:0:ffff:a54d:51f3
165.77.81.244 0:0:0:0:0:ffff:a54d:51f4
165.77.81.245 0:0:0:0:0:ffff:a54d:51f5
165.77.81.246 0:0:0:0:0:ffff:a54d:51f6
165.77.81.247 0:0:0:0:0:ffff:a54d:51f7
165.77.81.248 0:0:0:0:0:ffff:a54d:51f8
165.77.81.249 0:0:0:0:0:ffff:a54d:51f9
165.77.81.250 0:0:0:0:0:ffff:a54d:51fa
165.77.81.251 0:0:0:0:0:ffff:a54d:51fb
165.77.81.252 0:0:0:0:0:ffff:a54d:51fc
165.77.81.253 0:0:0:0:0:ffff:a54d:51fd
165.77.81.254 0:0:0:0:0:ffff:a54d:51fe
165.77.81.255 0:0:0:0:0:ffff:a54d:51ff


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.