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
65.76.81.1 0:0:0:0:0:ffff:414c:5101
65.76.81.2 0:0:0:0:0:ffff:414c:5102
65.76.81.3 0:0:0:0:0:ffff:414c:5103
65.76.81.4 0:0:0:0:0:ffff:414c:5104
65.76.81.5 0:0:0:0:0:ffff:414c:5105
65.76.81.6 0:0:0:0:0:ffff:414c:5106
65.76.81.7 0:0:0:0:0:ffff:414c:5107
65.76.81.8 0:0:0:0:0:ffff:414c:5108
65.76.81.9 0:0:0:0:0:ffff:414c:5109
65.76.81.10 0:0:0:0:0:ffff:414c:510a
65.76.81.11 0:0:0:0:0:ffff:414c:510b
65.76.81.12 0:0:0:0:0:ffff:414c:510c
65.76.81.13 0:0:0:0:0:ffff:414c:510d
65.76.81.14 0:0:0:0:0:ffff:414c:510e
65.76.81.15 0:0:0:0:0:ffff:414c:510f
65.76.81.16 0:0:0:0:0:ffff:414c:5110
65.76.81.17 0:0:0:0:0:ffff:414c:5111
65.76.81.18 0:0:0:0:0:ffff:414c:5112
65.76.81.19 0:0:0:0:0:ffff:414c:5113
65.76.81.20 0:0:0:0:0:ffff:414c:5114
65.76.81.21 0:0:0:0:0:ffff:414c:5115
65.76.81.22 0:0:0:0:0:ffff:414c:5116
65.76.81.23 0:0:0:0:0:ffff:414c:5117
65.76.81.24 0:0:0:0:0:ffff:414c:5118
65.76.81.25 0:0:0:0:0:ffff:414c:5119
65.76.81.26 0:0:0:0:0:ffff:414c:511a
65.76.81.27 0:0:0:0:0:ffff:414c:511b
65.76.81.28 0:0:0:0:0:ffff:414c:511c
65.76.81.29 0:0:0:0:0:ffff:414c:511d
65.76.81.30 0:0:0:0:0:ffff:414c:511e
65.76.81.31 0:0:0:0:0:ffff:414c:511f
65.76.81.32 0:0:0:0:0:ffff:414c:5120
65.76.81.33 0:0:0:0:0:ffff:414c:5121
65.76.81.34 0:0:0:0:0:ffff:414c:5122
65.76.81.35 0:0:0:0:0:ffff:414c:5123
65.76.81.36 0:0:0:0:0:ffff:414c:5124
65.76.81.37 0:0:0:0:0:ffff:414c:5125
65.76.81.38 0:0:0:0:0:ffff:414c:5126
65.76.81.39 0:0:0:0:0:ffff:414c:5127
65.76.81.40 0:0:0:0:0:ffff:414c:5128
65.76.81.41 0:0:0:0:0:ffff:414c:5129
65.76.81.42 0:0:0:0:0:ffff:414c:512a
65.76.81.43 0:0:0:0:0:ffff:414c:512b
65.76.81.44 0:0:0:0:0:ffff:414c:512c
65.76.81.45 0:0:0:0:0:ffff:414c:512d
65.76.81.46 0:0:0:0:0:ffff:414c:512e
65.76.81.47 0:0:0:0:0:ffff:414c:512f
65.76.81.48 0:0:0:0:0:ffff:414c:5130
65.76.81.49 0:0:0:0:0:ffff:414c:5131
65.76.81.50 0:0:0:0:0:ffff:414c:5132
65.76.81.51 0:0:0:0:0:ffff:414c:5133
65.76.81.52 0:0:0:0:0:ffff:414c:5134
65.76.81.53 0:0:0:0:0:ffff:414c:5135
65.76.81.54 0:0:0:0:0:ffff:414c:5136
65.76.81.55 0:0:0:0:0:ffff:414c:5137
65.76.81.56 0:0:0:0:0:ffff:414c:5138
65.76.81.57 0:0:0:0:0:ffff:414c:5139
65.76.81.58 0:0:0:0:0:ffff:414c:513a
65.76.81.59 0:0:0:0:0:ffff:414c:513b
65.76.81.60 0:0:0:0:0:ffff:414c:513c


65.76.81.61 0:0:0:0:0:ffff:414c:513d
65.76.81.62 0:0:0:0:0:ffff:414c:513e
65.76.81.63 0:0:0:0:0:ffff:414c:513f
65.76.81.64 0:0:0:0:0:ffff:414c:5140
65.76.81.65 0:0:0:0:0:ffff:414c:5141
65.76.81.66 0:0:0:0:0:ffff:414c:5142
65.76.81.67 0:0:0:0:0:ffff:414c:5143
65.76.81.68 0:0:0:0:0:ffff:414c:5144
65.76.81.69 0:0:0:0:0:ffff:414c:5145
65.76.81.70 0:0:0:0:0:ffff:414c:5146
65.76.81.71 0:0:0:0:0:ffff:414c:5147
65.76.81.72 0:0:0:0:0:ffff:414c:5148
65.76.81.73 0:0:0:0:0:ffff:414c:5149
65.76.81.74 0:0:0:0:0:ffff:414c:514a
65.76.81.75 0:0:0:0:0:ffff:414c:514b
65.76.81.76 0:0:0:0:0:ffff:414c:514c
65.76.81.77 0:0:0:0:0:ffff:414c:514d
65.76.81.78 0:0:0:0:0:ffff:414c:514e
65.76.81.79 0:0:0:0:0:ffff:414c:514f
65.76.81.80 0:0:0:0:0:ffff:414c:5150
65.76.81.81 0:0:0:0:0:ffff:414c:5151
65.76.81.82 0:0:0:0:0:ffff:414c:5152
65.76.81.83 0:0:0:0:0:ffff:414c:5153
65.76.81.84 0:0:0:0:0:ffff:414c:5154
65.76.81.85 0:0:0:0:0:ffff:414c:5155
65.76.81.86 0:0:0:0:0:ffff:414c:5156
65.76.81.87 0:0:0:0:0:ffff:414c:5157
65.76.81.88 0:0:0:0:0:ffff:414c:5158
65.76.81.89 0:0:0:0:0:ffff:414c:5159
65.76.81.90 0:0:0:0:0:ffff:414c:515a
65.76.81.91 0:0:0:0:0:ffff:414c:515b
65.76.81.92 0:0:0:0:0:ffff:414c:515c
65.76.81.93 0:0:0:0:0:ffff:414c:515d
65.76.81.94 0:0:0:0:0:ffff:414c:515e
65.76.81.95 0:0:0:0:0:ffff:414c:515f
65.76.81.96 0:0:0:0:0:ffff:414c:5160
65.76.81.97 0:0:0:0:0:ffff:414c:5161
65.76.81.98 0:0:0:0:0:ffff:414c:5162
65.76.81.99 0:0:0:0:0:ffff:414c:5163
65.76.81.100 0:0:0:0:0:ffff:414c:5164
65.76.81.101 0:0:0:0:0:ffff:414c:5165
65.76.81.102 0:0:0:0:0:ffff:414c:5166
65.76.81.103 0:0:0:0:0:ffff:414c:5167
65.76.81.104 0:0:0:0:0:ffff:414c:5168
65.76.81.105 0:0:0:0:0:ffff:414c:5169
65.76.81.106 0:0:0:0:0:ffff:414c:516a
65.76.81.107 0:0:0:0:0:ffff:414c:516b
65.76.81.108 0:0:0:0:0:ffff:414c:516c
65.76.81.109 0:0:0:0:0:ffff:414c:516d
65.76.81.110 0:0:0:0:0:ffff:414c:516e
65.76.81.111 0:0:0:0:0:ffff:414c:516f
65.76.81.112 0:0:0:0:0:ffff:414c:5170
65.76.81.113 0:0:0:0:0:ffff:414c:5171
65.76.81.114 0:0:0:0:0:ffff:414c:5172
65.76.81.115 0:0:0:0:0:ffff:414c:5173
65.76.81.116 0:0:0:0:0:ffff:414c:5174
65.76.81.117 0:0:0:0:0:ffff:414c:5175
65.76.81.118 0:0:0:0:0:ffff:414c:5176
65.76.81.119 0:0:0:0:0:ffff:414c:5177
65.76.81.120 0:0:0:0:0:ffff:414c:5178


65.76.81.121 0:0:0:0:0:ffff:414c:5179
65.76.81.122 0:0:0:0:0:ffff:414c:517a
65.76.81.123 0:0:0:0:0:ffff:414c:517b
65.76.81.124 0:0:0:0:0:ffff:414c:517c
65.76.81.125 0:0:0:0:0:ffff:414c:517d
65.76.81.126 0:0:0:0:0:ffff:414c:517e
65.76.81.127 0:0:0:0:0:ffff:414c:517f
65.76.81.128 0:0:0:0:0:ffff:414c:5180
65.76.81.129 0:0:0:0:0:ffff:414c:5181
65.76.81.130 0:0:0:0:0:ffff:414c:5182
65.76.81.131 0:0:0:0:0:ffff:414c:5183
65.76.81.132 0:0:0:0:0:ffff:414c:5184
65.76.81.133 0:0:0:0:0:ffff:414c:5185
65.76.81.134 0:0:0:0:0:ffff:414c:5186
65.76.81.135 0:0:0:0:0:ffff:414c:5187
65.76.81.136 0:0:0:0:0:ffff:414c:5188
65.76.81.137 0:0:0:0:0:ffff:414c:5189
65.76.81.138 0:0:0:0:0:ffff:414c:518a
65.76.81.139 0:0:0:0:0:ffff:414c:518b
65.76.81.140 0:0:0:0:0:ffff:414c:518c
65.76.81.141 0:0:0:0:0:ffff:414c:518d
65.76.81.142 0:0:0:0:0:ffff:414c:518e
65.76.81.143 0:0:0:0:0:ffff:414c:518f
65.76.81.144 0:0:0:0:0:ffff:414c:5190
65.76.81.145 0:0:0:0:0:ffff:414c:5191
65.76.81.146 0:0:0:0:0:ffff:414c:5192
65.76.81.147 0:0:0:0:0:ffff:414c:5193
65.76.81.148 0:0:0:0:0:ffff:414c:5194
65.76.81.149 0:0:0:0:0:ffff:414c:5195
65.76.81.150 0:0:0:0:0:ffff:414c:5196
65.76.81.151 0:0:0:0:0:ffff:414c:5197
65.76.81.152 0:0:0:0:0:ffff:414c:5198
65.76.81.153 0:0:0:0:0:ffff:414c:5199
65.76.81.154 0:0:0:0:0:ffff:414c:519a
65.76.81.155 0:0:0:0:0:ffff:414c:519b
65.76.81.156 0:0:0:0:0:ffff:414c:519c
65.76.81.157 0:0:0:0:0:ffff:414c:519d
65.76.81.158 0:0:0:0:0:ffff:414c:519e
65.76.81.159 0:0:0:0:0:ffff:414c:519f
65.76.81.160 0:0:0:0:0:ffff:414c:51a0
65.76.81.161 0:0:0:0:0:ffff:414c:51a1
65.76.81.162 0:0:0:0:0:ffff:414c:51a2
65.76.81.163 0:0:0:0:0:ffff:414c:51a3
65.76.81.164 0:0:0:0:0:ffff:414c:51a4
65.76.81.165 0:0:0:0:0:ffff:414c:51a5
65.76.81.166 0:0:0:0:0:ffff:414c:51a6
65.76.81.167 0:0:0:0:0:ffff:414c:51a7
65.76.81.168 0:0:0:0:0:ffff:414c:51a8
65.76.81.169 0:0:0:0:0:ffff:414c:51a9
65.76.81.170 0:0:0:0:0:ffff:414c:51aa
65.76.81.171 0:0:0:0:0:ffff:414c:51ab
65.76.81.172 0:0:0:0:0:ffff:414c:51ac
65.76.81.173 0:0:0:0:0:ffff:414c:51ad
65.76.81.174 0:0:0:0:0:ffff:414c:51ae
65.76.81.175 0:0:0:0:0:ffff:414c:51af
65.76.81.176 0:0:0:0:0:ffff:414c:51b0
65.76.81.177 0:0:0:0:0:ffff:414c:51b1
65.76.81.178 0:0:0:0:0:ffff:414c:51b2
65.76.81.179 0:0:0:0:0:ffff:414c:51b3
65.76.81.180 0:0:0:0:0:ffff:414c:51b4


65.76.81.181 0:0:0:0:0:ffff:414c:51b5
65.76.81.182 0:0:0:0:0:ffff:414c:51b6
65.76.81.183 0:0:0:0:0:ffff:414c:51b7
65.76.81.184 0:0:0:0:0:ffff:414c:51b8
65.76.81.185 0:0:0:0:0:ffff:414c:51b9
65.76.81.186 0:0:0:0:0:ffff:414c:51ba
65.76.81.187 0:0:0:0:0:ffff:414c:51bb
65.76.81.188 0:0:0:0:0:ffff:414c:51bc
65.76.81.189 0:0:0:0:0:ffff:414c:51bd
65.76.81.190 0:0:0:0:0:ffff:414c:51be
65.76.81.191 0:0:0:0:0:ffff:414c:51bf
65.76.81.192 0:0:0:0:0:ffff:414c:51c0
65.76.81.193 0:0:0:0:0:ffff:414c:51c1
65.76.81.194 0:0:0:0:0:ffff:414c:51c2
65.76.81.195 0:0:0:0:0:ffff:414c:51c3
65.76.81.196 0:0:0:0:0:ffff:414c:51c4
65.76.81.197 0:0:0:0:0:ffff:414c:51c5
65.76.81.198 0:0:0:0:0:ffff:414c:51c6
65.76.81.199 0:0:0:0:0:ffff:414c:51c7
65.76.81.200 0:0:0:0:0:ffff:414c:51c8
65.76.81.201 0:0:0:0:0:ffff:414c:51c9
65.76.81.202 0:0:0:0:0:ffff:414c:51ca
65.76.81.203 0:0:0:0:0:ffff:414c:51cb
65.76.81.204 0:0:0:0:0:ffff:414c:51cc
65.76.81.205 0:0:0:0:0:ffff:414c:51cd
65.76.81.206 0:0:0:0:0:ffff:414c:51ce
65.76.81.207 0:0:0:0:0:ffff:414c:51cf
65.76.81.208 0:0:0:0:0:ffff:414c:51d0
65.76.81.209 0:0:0:0:0:ffff:414c:51d1
65.76.81.210 0:0:0:0:0:ffff:414c:51d2
65.76.81.211 0:0:0:0:0:ffff:414c:51d3
65.76.81.212 0:0:0:0:0:ffff:414c:51d4
65.76.81.213 0:0:0:0:0:ffff:414c:51d5
65.76.81.214 0:0:0:0:0:ffff:414c:51d6
65.76.81.215 0:0:0:0:0:ffff:414c:51d7
65.76.81.216 0:0:0:0:0:ffff:414c:51d8
65.76.81.217 0:0:0:0:0:ffff:414c:51d9
65.76.81.218 0:0:0:0:0:ffff:414c:51da
65.76.81.219 0:0:0:0:0:ffff:414c:51db
65.76.81.220 0:0:0:0:0:ffff:414c:51dc
65.76.81.221 0:0:0:0:0:ffff:414c:51dd
65.76.81.222 0:0:0:0:0:ffff:414c:51de
65.76.81.223 0:0:0:0:0:ffff:414c:51df
65.76.81.224 0:0:0:0:0:ffff:414c:51e0
65.76.81.225 0:0:0:0:0:ffff:414c:51e1
65.76.81.226 0:0:0:0:0:ffff:414c:51e2
65.76.81.227 0:0:0:0:0:ffff:414c:51e3
65.76.81.228 0:0:0:0:0:ffff:414c:51e4
65.76.81.229 0:0:0:0:0:ffff:414c:51e5
65.76.81.230 0:0:0:0:0:ffff:414c:51e6
65.76.81.231 0:0:0:0:0:ffff:414c:51e7
65.76.81.232 0:0:0:0:0:ffff:414c:51e8
65.76.81.233 0:0:0:0:0:ffff:414c:51e9
65.76.81.234 0:0:0:0:0:ffff:414c:51ea
65.76.81.235 0:0:0:0:0:ffff:414c:51eb
65.76.81.236 0:0:0:0:0:ffff:414c:51ec
65.76.81.237 0:0:0:0:0:ffff:414c:51ed
65.76.81.238 0:0:0:0:0:ffff:414c:51ee
65.76.81.239 0:0:0:0:0:ffff:414c:51ef
65.76.81.240 0:0:0:0:0:ffff:414c:51f0
65.76.81.241 0:0:0:0:0:ffff:414c:51f1
65.76.81.242 0:0:0:0:0:ffff:414c:51f2
65.76.81.243 0:0:0:0:0:ffff:414c:51f3
65.76.81.244 0:0:0:0:0:ffff:414c:51f4
65.76.81.245 0:0:0:0:0:ffff:414c:51f5
65.76.81.246 0:0:0:0:0:ffff:414c:51f6
65.76.81.247 0:0:0:0:0:ffff:414c:51f7
65.76.81.248 0:0:0:0:0:ffff:414c:51f8
65.76.81.249 0:0:0:0:0:ffff:414c:51f9
65.76.81.250 0:0:0:0:0:ffff:414c:51fa
65.76.81.251 0:0:0:0:0:ffff:414c:51fb
65.76.81.252 0:0:0:0:0:ffff:414c:51fc
65.76.81.253 0:0:0:0:0:ffff:414c:51fd
65.76.81.254 0:0:0:0:0:ffff:414c:51fe
65.76.81.255 0:0:0:0:0:ffff:414c: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.