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
51.185.111.1 0:0:0:0:0:ffff:33b9:6f01
51.185.111.2 0:0:0:0:0:ffff:33b9:6f02
51.185.111.3 0:0:0:0:0:ffff:33b9:6f03
51.185.111.4 0:0:0:0:0:ffff:33b9:6f04
51.185.111.5 0:0:0:0:0:ffff:33b9:6f05
51.185.111.6 0:0:0:0:0:ffff:33b9:6f06
51.185.111.7 0:0:0:0:0:ffff:33b9:6f07
51.185.111.8 0:0:0:0:0:ffff:33b9:6f08
51.185.111.9 0:0:0:0:0:ffff:33b9:6f09
51.185.111.10 0:0:0:0:0:ffff:33b9:6f0a
51.185.111.11 0:0:0:0:0:ffff:33b9:6f0b
51.185.111.12 0:0:0:0:0:ffff:33b9:6f0c
51.185.111.13 0:0:0:0:0:ffff:33b9:6f0d
51.185.111.14 0:0:0:0:0:ffff:33b9:6f0e
51.185.111.15 0:0:0:0:0:ffff:33b9:6f0f
51.185.111.16 0:0:0:0:0:ffff:33b9:6f10
51.185.111.17 0:0:0:0:0:ffff:33b9:6f11
51.185.111.18 0:0:0:0:0:ffff:33b9:6f12
51.185.111.19 0:0:0:0:0:ffff:33b9:6f13
51.185.111.20 0:0:0:0:0:ffff:33b9:6f14
51.185.111.21 0:0:0:0:0:ffff:33b9:6f15
51.185.111.22 0:0:0:0:0:ffff:33b9:6f16
51.185.111.23 0:0:0:0:0:ffff:33b9:6f17
51.185.111.24 0:0:0:0:0:ffff:33b9:6f18
51.185.111.25 0:0:0:0:0:ffff:33b9:6f19
51.185.111.26 0:0:0:0:0:ffff:33b9:6f1a
51.185.111.27 0:0:0:0:0:ffff:33b9:6f1b
51.185.111.28 0:0:0:0:0:ffff:33b9:6f1c
51.185.111.29 0:0:0:0:0:ffff:33b9:6f1d
51.185.111.30 0:0:0:0:0:ffff:33b9:6f1e
51.185.111.31 0:0:0:0:0:ffff:33b9:6f1f
51.185.111.32 0:0:0:0:0:ffff:33b9:6f20
51.185.111.33 0:0:0:0:0:ffff:33b9:6f21
51.185.111.34 0:0:0:0:0:ffff:33b9:6f22
51.185.111.35 0:0:0:0:0:ffff:33b9:6f23
51.185.111.36 0:0:0:0:0:ffff:33b9:6f24
51.185.111.37 0:0:0:0:0:ffff:33b9:6f25
51.185.111.38 0:0:0:0:0:ffff:33b9:6f26
51.185.111.39 0:0:0:0:0:ffff:33b9:6f27
51.185.111.40 0:0:0:0:0:ffff:33b9:6f28
51.185.111.41 0:0:0:0:0:ffff:33b9:6f29
51.185.111.42 0:0:0:0:0:ffff:33b9:6f2a
51.185.111.43 0:0:0:0:0:ffff:33b9:6f2b
51.185.111.44 0:0:0:0:0:ffff:33b9:6f2c
51.185.111.45 0:0:0:0:0:ffff:33b9:6f2d
51.185.111.46 0:0:0:0:0:ffff:33b9:6f2e
51.185.111.47 0:0:0:0:0:ffff:33b9:6f2f
51.185.111.48 0:0:0:0:0:ffff:33b9:6f30
51.185.111.49 0:0:0:0:0:ffff:33b9:6f31
51.185.111.50 0:0:0:0:0:ffff:33b9:6f32
51.185.111.51 0:0:0:0:0:ffff:33b9:6f33
51.185.111.52 0:0:0:0:0:ffff:33b9:6f34
51.185.111.53 0:0:0:0:0:ffff:33b9:6f35
51.185.111.54 0:0:0:0:0:ffff:33b9:6f36
51.185.111.55 0:0:0:0:0:ffff:33b9:6f37
51.185.111.56 0:0:0:0:0:ffff:33b9:6f38
51.185.111.57 0:0:0:0:0:ffff:33b9:6f39
51.185.111.58 0:0:0:0:0:ffff:33b9:6f3a
51.185.111.59 0:0:0:0:0:ffff:33b9:6f3b
51.185.111.60 0:0:0:0:0:ffff:33b9:6f3c


51.185.111.61 0:0:0:0:0:ffff:33b9:6f3d
51.185.111.62 0:0:0:0:0:ffff:33b9:6f3e
51.185.111.63 0:0:0:0:0:ffff:33b9:6f3f
51.185.111.64 0:0:0:0:0:ffff:33b9:6f40
51.185.111.65 0:0:0:0:0:ffff:33b9:6f41
51.185.111.66 0:0:0:0:0:ffff:33b9:6f42
51.185.111.67 0:0:0:0:0:ffff:33b9:6f43
51.185.111.68 0:0:0:0:0:ffff:33b9:6f44
51.185.111.69 0:0:0:0:0:ffff:33b9:6f45
51.185.111.70 0:0:0:0:0:ffff:33b9:6f46
51.185.111.71 0:0:0:0:0:ffff:33b9:6f47
51.185.111.72 0:0:0:0:0:ffff:33b9:6f48
51.185.111.73 0:0:0:0:0:ffff:33b9:6f49
51.185.111.74 0:0:0:0:0:ffff:33b9:6f4a
51.185.111.75 0:0:0:0:0:ffff:33b9:6f4b
51.185.111.76 0:0:0:0:0:ffff:33b9:6f4c
51.185.111.77 0:0:0:0:0:ffff:33b9:6f4d
51.185.111.78 0:0:0:0:0:ffff:33b9:6f4e
51.185.111.79 0:0:0:0:0:ffff:33b9:6f4f
51.185.111.80 0:0:0:0:0:ffff:33b9:6f50
51.185.111.81 0:0:0:0:0:ffff:33b9:6f51
51.185.111.82 0:0:0:0:0:ffff:33b9:6f52
51.185.111.83 0:0:0:0:0:ffff:33b9:6f53
51.185.111.84 0:0:0:0:0:ffff:33b9:6f54
51.185.111.85 0:0:0:0:0:ffff:33b9:6f55
51.185.111.86 0:0:0:0:0:ffff:33b9:6f56
51.185.111.87 0:0:0:0:0:ffff:33b9:6f57
51.185.111.88 0:0:0:0:0:ffff:33b9:6f58
51.185.111.89 0:0:0:0:0:ffff:33b9:6f59
51.185.111.90 0:0:0:0:0:ffff:33b9:6f5a
51.185.111.91 0:0:0:0:0:ffff:33b9:6f5b
51.185.111.92 0:0:0:0:0:ffff:33b9:6f5c
51.185.111.93 0:0:0:0:0:ffff:33b9:6f5d
51.185.111.94 0:0:0:0:0:ffff:33b9:6f5e
51.185.111.95 0:0:0:0:0:ffff:33b9:6f5f
51.185.111.96 0:0:0:0:0:ffff:33b9:6f60
51.185.111.97 0:0:0:0:0:ffff:33b9:6f61
51.185.111.98 0:0:0:0:0:ffff:33b9:6f62
51.185.111.99 0:0:0:0:0:ffff:33b9:6f63
51.185.111.100 0:0:0:0:0:ffff:33b9:6f64
51.185.111.101 0:0:0:0:0:ffff:33b9:6f65
51.185.111.102 0:0:0:0:0:ffff:33b9:6f66
51.185.111.103 0:0:0:0:0:ffff:33b9:6f67
51.185.111.104 0:0:0:0:0:ffff:33b9:6f68
51.185.111.105 0:0:0:0:0:ffff:33b9:6f69
51.185.111.106 0:0:0:0:0:ffff:33b9:6f6a
51.185.111.107 0:0:0:0:0:ffff:33b9:6f6b
51.185.111.108 0:0:0:0:0:ffff:33b9:6f6c
51.185.111.109 0:0:0:0:0:ffff:33b9:6f6d
51.185.111.110 0:0:0:0:0:ffff:33b9:6f6e
51.185.111.111 0:0:0:0:0:ffff:33b9:6f6f
51.185.111.112 0:0:0:0:0:ffff:33b9:6f70
51.185.111.113 0:0:0:0:0:ffff:33b9:6f71
51.185.111.114 0:0:0:0:0:ffff:33b9:6f72
51.185.111.115 0:0:0:0:0:ffff:33b9:6f73
51.185.111.116 0:0:0:0:0:ffff:33b9:6f74
51.185.111.117 0:0:0:0:0:ffff:33b9:6f75
51.185.111.118 0:0:0:0:0:ffff:33b9:6f76
51.185.111.119 0:0:0:0:0:ffff:33b9:6f77
51.185.111.120 0:0:0:0:0:ffff:33b9:6f78


51.185.111.121 0:0:0:0:0:ffff:33b9:6f79
51.185.111.122 0:0:0:0:0:ffff:33b9:6f7a
51.185.111.123 0:0:0:0:0:ffff:33b9:6f7b
51.185.111.124 0:0:0:0:0:ffff:33b9:6f7c
51.185.111.125 0:0:0:0:0:ffff:33b9:6f7d
51.185.111.126 0:0:0:0:0:ffff:33b9:6f7e
51.185.111.127 0:0:0:0:0:ffff:33b9:6f7f
51.185.111.128 0:0:0:0:0:ffff:33b9:6f80
51.185.111.129 0:0:0:0:0:ffff:33b9:6f81
51.185.111.130 0:0:0:0:0:ffff:33b9:6f82
51.185.111.131 0:0:0:0:0:ffff:33b9:6f83
51.185.111.132 0:0:0:0:0:ffff:33b9:6f84
51.185.111.133 0:0:0:0:0:ffff:33b9:6f85
51.185.111.134 0:0:0:0:0:ffff:33b9:6f86
51.185.111.135 0:0:0:0:0:ffff:33b9:6f87
51.185.111.136 0:0:0:0:0:ffff:33b9:6f88
51.185.111.137 0:0:0:0:0:ffff:33b9:6f89
51.185.111.138 0:0:0:0:0:ffff:33b9:6f8a
51.185.111.139 0:0:0:0:0:ffff:33b9:6f8b
51.185.111.140 0:0:0:0:0:ffff:33b9:6f8c
51.185.111.141 0:0:0:0:0:ffff:33b9:6f8d
51.185.111.142 0:0:0:0:0:ffff:33b9:6f8e
51.185.111.143 0:0:0:0:0:ffff:33b9:6f8f
51.185.111.144 0:0:0:0:0:ffff:33b9:6f90
51.185.111.145 0:0:0:0:0:ffff:33b9:6f91
51.185.111.146 0:0:0:0:0:ffff:33b9:6f92
51.185.111.147 0:0:0:0:0:ffff:33b9:6f93
51.185.111.148 0:0:0:0:0:ffff:33b9:6f94
51.185.111.149 0:0:0:0:0:ffff:33b9:6f95
51.185.111.150 0:0:0:0:0:ffff:33b9:6f96
51.185.111.151 0:0:0:0:0:ffff:33b9:6f97
51.185.111.152 0:0:0:0:0:ffff:33b9:6f98
51.185.111.153 0:0:0:0:0:ffff:33b9:6f99
51.185.111.154 0:0:0:0:0:ffff:33b9:6f9a
51.185.111.155 0:0:0:0:0:ffff:33b9:6f9b
51.185.111.156 0:0:0:0:0:ffff:33b9:6f9c
51.185.111.157 0:0:0:0:0:ffff:33b9:6f9d
51.185.111.158 0:0:0:0:0:ffff:33b9:6f9e
51.185.111.159 0:0:0:0:0:ffff:33b9:6f9f
51.185.111.160 0:0:0:0:0:ffff:33b9:6fa0
51.185.111.161 0:0:0:0:0:ffff:33b9:6fa1
51.185.111.162 0:0:0:0:0:ffff:33b9:6fa2
51.185.111.163 0:0:0:0:0:ffff:33b9:6fa3
51.185.111.164 0:0:0:0:0:ffff:33b9:6fa4
51.185.111.165 0:0:0:0:0:ffff:33b9:6fa5
51.185.111.166 0:0:0:0:0:ffff:33b9:6fa6
51.185.111.167 0:0:0:0:0:ffff:33b9:6fa7
51.185.111.168 0:0:0:0:0:ffff:33b9:6fa8
51.185.111.169 0:0:0:0:0:ffff:33b9:6fa9
51.185.111.170 0:0:0:0:0:ffff:33b9:6faa
51.185.111.171 0:0:0:0:0:ffff:33b9:6fab
51.185.111.172 0:0:0:0:0:ffff:33b9:6fac
51.185.111.173 0:0:0:0:0:ffff:33b9:6fad
51.185.111.174 0:0:0:0:0:ffff:33b9:6fae
51.185.111.175 0:0:0:0:0:ffff:33b9:6faf
51.185.111.176 0:0:0:0:0:ffff:33b9:6fb0
51.185.111.177 0:0:0:0:0:ffff:33b9:6fb1
51.185.111.178 0:0:0:0:0:ffff:33b9:6fb2
51.185.111.179 0:0:0:0:0:ffff:33b9:6fb3
51.185.111.180 0:0:0:0:0:ffff:33b9:6fb4


51.185.111.181 0:0:0:0:0:ffff:33b9:6fb5
51.185.111.182 0:0:0:0:0:ffff:33b9:6fb6
51.185.111.183 0:0:0:0:0:ffff:33b9:6fb7
51.185.111.184 0:0:0:0:0:ffff:33b9:6fb8
51.185.111.185 0:0:0:0:0:ffff:33b9:6fb9
51.185.111.186 0:0:0:0:0:ffff:33b9:6fba
51.185.111.187 0:0:0:0:0:ffff:33b9:6fbb
51.185.111.188 0:0:0:0:0:ffff:33b9:6fbc
51.185.111.189 0:0:0:0:0:ffff:33b9:6fbd
51.185.111.190 0:0:0:0:0:ffff:33b9:6fbe
51.185.111.191 0:0:0:0:0:ffff:33b9:6fbf
51.185.111.192 0:0:0:0:0:ffff:33b9:6fc0
51.185.111.193 0:0:0:0:0:ffff:33b9:6fc1
51.185.111.194 0:0:0:0:0:ffff:33b9:6fc2
51.185.111.195 0:0:0:0:0:ffff:33b9:6fc3
51.185.111.196 0:0:0:0:0:ffff:33b9:6fc4
51.185.111.197 0:0:0:0:0:ffff:33b9:6fc5
51.185.111.198 0:0:0:0:0:ffff:33b9:6fc6
51.185.111.199 0:0:0:0:0:ffff:33b9:6fc7
51.185.111.200 0:0:0:0:0:ffff:33b9:6fc8
51.185.111.201 0:0:0:0:0:ffff:33b9:6fc9
51.185.111.202 0:0:0:0:0:ffff:33b9:6fca
51.185.111.203 0:0:0:0:0:ffff:33b9:6fcb
51.185.111.204 0:0:0:0:0:ffff:33b9:6fcc
51.185.111.205 0:0:0:0:0:ffff:33b9:6fcd
51.185.111.206 0:0:0:0:0:ffff:33b9:6fce
51.185.111.207 0:0:0:0:0:ffff:33b9:6fcf
51.185.111.208 0:0:0:0:0:ffff:33b9:6fd0
51.185.111.209 0:0:0:0:0:ffff:33b9:6fd1
51.185.111.210 0:0:0:0:0:ffff:33b9:6fd2
51.185.111.211 0:0:0:0:0:ffff:33b9:6fd3
51.185.111.212 0:0:0:0:0:ffff:33b9:6fd4
51.185.111.213 0:0:0:0:0:ffff:33b9:6fd5
51.185.111.214 0:0:0:0:0:ffff:33b9:6fd6
51.185.111.215 0:0:0:0:0:ffff:33b9:6fd7
51.185.111.216 0:0:0:0:0:ffff:33b9:6fd8
51.185.111.217 0:0:0:0:0:ffff:33b9:6fd9
51.185.111.218 0:0:0:0:0:ffff:33b9:6fda
51.185.111.219 0:0:0:0:0:ffff:33b9:6fdb
51.185.111.220 0:0:0:0:0:ffff:33b9:6fdc
51.185.111.221 0:0:0:0:0:ffff:33b9:6fdd
51.185.111.222 0:0:0:0:0:ffff:33b9:6fde
51.185.111.223 0:0:0:0:0:ffff:33b9:6fdf
51.185.111.224 0:0:0:0:0:ffff:33b9:6fe0
51.185.111.225 0:0:0:0:0:ffff:33b9:6fe1
51.185.111.226 0:0:0:0:0:ffff:33b9:6fe2
51.185.111.227 0:0:0:0:0:ffff:33b9:6fe3
51.185.111.228 0:0:0:0:0:ffff:33b9:6fe4
51.185.111.229 0:0:0:0:0:ffff:33b9:6fe5
51.185.111.230 0:0:0:0:0:ffff:33b9:6fe6
51.185.111.231 0:0:0:0:0:ffff:33b9:6fe7
51.185.111.232 0:0:0:0:0:ffff:33b9:6fe8
51.185.111.233 0:0:0:0:0:ffff:33b9:6fe9
51.185.111.234 0:0:0:0:0:ffff:33b9:6fea
51.185.111.235 0:0:0:0:0:ffff:33b9:6feb
51.185.111.236 0:0:0:0:0:ffff:33b9:6fec
51.185.111.237 0:0:0:0:0:ffff:33b9:6fed
51.185.111.238 0:0:0:0:0:ffff:33b9:6fee
51.185.111.239 0:0:0:0:0:ffff:33b9:6fef
51.185.111.240 0:0:0:0:0:ffff:33b9:6ff0
51.185.111.241 0:0:0:0:0:ffff:33b9:6ff1
51.185.111.242 0:0:0:0:0:ffff:33b9:6ff2
51.185.111.243 0:0:0:0:0:ffff:33b9:6ff3
51.185.111.244 0:0:0:0:0:ffff:33b9:6ff4
51.185.111.245 0:0:0:0:0:ffff:33b9:6ff5
51.185.111.246 0:0:0:0:0:ffff:33b9:6ff6
51.185.111.247 0:0:0:0:0:ffff:33b9:6ff7
51.185.111.248 0:0:0:0:0:ffff:33b9:6ff8
51.185.111.249 0:0:0:0:0:ffff:33b9:6ff9
51.185.111.250 0:0:0:0:0:ffff:33b9:6ffa
51.185.111.251 0:0:0:0:0:ffff:33b9:6ffb
51.185.111.252 0:0:0:0:0:ffff:33b9:6ffc
51.185.111.253 0:0:0:0:0:ffff:33b9:6ffd
51.185.111.254 0:0:0:0:0:ffff:33b9:6ffe
51.185.111.255 0:0:0:0:0:ffff:33b9:6fff


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.