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
203.153.111.1 0:0:0:0:0:ffff:cb99:6f01
203.153.111.2 0:0:0:0:0:ffff:cb99:6f02
203.153.111.3 0:0:0:0:0:ffff:cb99:6f03
203.153.111.4 0:0:0:0:0:ffff:cb99:6f04
203.153.111.5 0:0:0:0:0:ffff:cb99:6f05
203.153.111.6 0:0:0:0:0:ffff:cb99:6f06
203.153.111.7 0:0:0:0:0:ffff:cb99:6f07
203.153.111.8 0:0:0:0:0:ffff:cb99:6f08
203.153.111.9 0:0:0:0:0:ffff:cb99:6f09
203.153.111.10 0:0:0:0:0:ffff:cb99:6f0a
203.153.111.11 0:0:0:0:0:ffff:cb99:6f0b
203.153.111.12 0:0:0:0:0:ffff:cb99:6f0c
203.153.111.13 0:0:0:0:0:ffff:cb99:6f0d
203.153.111.14 0:0:0:0:0:ffff:cb99:6f0e
203.153.111.15 0:0:0:0:0:ffff:cb99:6f0f
203.153.111.16 0:0:0:0:0:ffff:cb99:6f10
203.153.111.17 0:0:0:0:0:ffff:cb99:6f11
203.153.111.18 0:0:0:0:0:ffff:cb99:6f12
203.153.111.19 0:0:0:0:0:ffff:cb99:6f13
203.153.111.20 0:0:0:0:0:ffff:cb99:6f14
203.153.111.21 0:0:0:0:0:ffff:cb99:6f15
203.153.111.22 0:0:0:0:0:ffff:cb99:6f16
203.153.111.23 0:0:0:0:0:ffff:cb99:6f17
203.153.111.24 0:0:0:0:0:ffff:cb99:6f18
203.153.111.25 0:0:0:0:0:ffff:cb99:6f19
203.153.111.26 0:0:0:0:0:ffff:cb99:6f1a
203.153.111.27 0:0:0:0:0:ffff:cb99:6f1b
203.153.111.28 0:0:0:0:0:ffff:cb99:6f1c
203.153.111.29 0:0:0:0:0:ffff:cb99:6f1d
203.153.111.30 0:0:0:0:0:ffff:cb99:6f1e
203.153.111.31 0:0:0:0:0:ffff:cb99:6f1f
203.153.111.32 0:0:0:0:0:ffff:cb99:6f20
203.153.111.33 0:0:0:0:0:ffff:cb99:6f21
203.153.111.34 0:0:0:0:0:ffff:cb99:6f22
203.153.111.35 0:0:0:0:0:ffff:cb99:6f23
203.153.111.36 0:0:0:0:0:ffff:cb99:6f24
203.153.111.37 0:0:0:0:0:ffff:cb99:6f25
203.153.111.38 0:0:0:0:0:ffff:cb99:6f26
203.153.111.39 0:0:0:0:0:ffff:cb99:6f27
203.153.111.40 0:0:0:0:0:ffff:cb99:6f28
203.153.111.41 0:0:0:0:0:ffff:cb99:6f29
203.153.111.42 0:0:0:0:0:ffff:cb99:6f2a
203.153.111.43 0:0:0:0:0:ffff:cb99:6f2b
203.153.111.44 0:0:0:0:0:ffff:cb99:6f2c
203.153.111.45 0:0:0:0:0:ffff:cb99:6f2d
203.153.111.46 0:0:0:0:0:ffff:cb99:6f2e
203.153.111.47 0:0:0:0:0:ffff:cb99:6f2f
203.153.111.48 0:0:0:0:0:ffff:cb99:6f30
203.153.111.49 0:0:0:0:0:ffff:cb99:6f31
203.153.111.50 0:0:0:0:0:ffff:cb99:6f32
203.153.111.51 0:0:0:0:0:ffff:cb99:6f33
203.153.111.52 0:0:0:0:0:ffff:cb99:6f34
203.153.111.53 0:0:0:0:0:ffff:cb99:6f35
203.153.111.54 0:0:0:0:0:ffff:cb99:6f36
203.153.111.55 0:0:0:0:0:ffff:cb99:6f37
203.153.111.56 0:0:0:0:0:ffff:cb99:6f38
203.153.111.57 0:0:0:0:0:ffff:cb99:6f39
203.153.111.58 0:0:0:0:0:ffff:cb99:6f3a
203.153.111.59 0:0:0:0:0:ffff:cb99:6f3b
203.153.111.60 0:0:0:0:0:ffff:cb99:6f3c


203.153.111.61 0:0:0:0:0:ffff:cb99:6f3d
203.153.111.62 0:0:0:0:0:ffff:cb99:6f3e
203.153.111.63 0:0:0:0:0:ffff:cb99:6f3f
203.153.111.64 0:0:0:0:0:ffff:cb99:6f40
203.153.111.65 0:0:0:0:0:ffff:cb99:6f41
203.153.111.66 0:0:0:0:0:ffff:cb99:6f42
203.153.111.67 0:0:0:0:0:ffff:cb99:6f43
203.153.111.68 0:0:0:0:0:ffff:cb99:6f44
203.153.111.69 0:0:0:0:0:ffff:cb99:6f45
203.153.111.70 0:0:0:0:0:ffff:cb99:6f46
203.153.111.71 0:0:0:0:0:ffff:cb99:6f47
203.153.111.72 0:0:0:0:0:ffff:cb99:6f48
203.153.111.73 0:0:0:0:0:ffff:cb99:6f49
203.153.111.74 0:0:0:0:0:ffff:cb99:6f4a
203.153.111.75 0:0:0:0:0:ffff:cb99:6f4b
203.153.111.76 0:0:0:0:0:ffff:cb99:6f4c
203.153.111.77 0:0:0:0:0:ffff:cb99:6f4d
203.153.111.78 0:0:0:0:0:ffff:cb99:6f4e
203.153.111.79 0:0:0:0:0:ffff:cb99:6f4f
203.153.111.80 0:0:0:0:0:ffff:cb99:6f50
203.153.111.81 0:0:0:0:0:ffff:cb99:6f51
203.153.111.82 0:0:0:0:0:ffff:cb99:6f52
203.153.111.83 0:0:0:0:0:ffff:cb99:6f53
203.153.111.84 0:0:0:0:0:ffff:cb99:6f54
203.153.111.85 0:0:0:0:0:ffff:cb99:6f55
203.153.111.86 0:0:0:0:0:ffff:cb99:6f56
203.153.111.87 0:0:0:0:0:ffff:cb99:6f57
203.153.111.88 0:0:0:0:0:ffff:cb99:6f58
203.153.111.89 0:0:0:0:0:ffff:cb99:6f59
203.153.111.90 0:0:0:0:0:ffff:cb99:6f5a
203.153.111.91 0:0:0:0:0:ffff:cb99:6f5b
203.153.111.92 0:0:0:0:0:ffff:cb99:6f5c
203.153.111.93 0:0:0:0:0:ffff:cb99:6f5d
203.153.111.94 0:0:0:0:0:ffff:cb99:6f5e
203.153.111.95 0:0:0:0:0:ffff:cb99:6f5f
203.153.111.96 0:0:0:0:0:ffff:cb99:6f60
203.153.111.97 0:0:0:0:0:ffff:cb99:6f61
203.153.111.98 0:0:0:0:0:ffff:cb99:6f62
203.153.111.99 0:0:0:0:0:ffff:cb99:6f63
203.153.111.100 0:0:0:0:0:ffff:cb99:6f64
203.153.111.101 0:0:0:0:0:ffff:cb99:6f65
203.153.111.102 0:0:0:0:0:ffff:cb99:6f66
203.153.111.103 0:0:0:0:0:ffff:cb99:6f67
203.153.111.104 0:0:0:0:0:ffff:cb99:6f68
203.153.111.105 0:0:0:0:0:ffff:cb99:6f69
203.153.111.106 0:0:0:0:0:ffff:cb99:6f6a
203.153.111.107 0:0:0:0:0:ffff:cb99:6f6b
203.153.111.108 0:0:0:0:0:ffff:cb99:6f6c
203.153.111.109 0:0:0:0:0:ffff:cb99:6f6d
203.153.111.110 0:0:0:0:0:ffff:cb99:6f6e
203.153.111.111 0:0:0:0:0:ffff:cb99:6f6f
203.153.111.112 0:0:0:0:0:ffff:cb99:6f70
203.153.111.113 0:0:0:0:0:ffff:cb99:6f71
203.153.111.114 0:0:0:0:0:ffff:cb99:6f72
203.153.111.115 0:0:0:0:0:ffff:cb99:6f73
203.153.111.116 0:0:0:0:0:ffff:cb99:6f74
203.153.111.117 0:0:0:0:0:ffff:cb99:6f75
203.153.111.118 0:0:0:0:0:ffff:cb99:6f76
203.153.111.119 0:0:0:0:0:ffff:cb99:6f77
203.153.111.120 0:0:0:0:0:ffff:cb99:6f78


203.153.111.121 0:0:0:0:0:ffff:cb99:6f79
203.153.111.122 0:0:0:0:0:ffff:cb99:6f7a
203.153.111.123 0:0:0:0:0:ffff:cb99:6f7b
203.153.111.124 0:0:0:0:0:ffff:cb99:6f7c
203.153.111.125 0:0:0:0:0:ffff:cb99:6f7d
203.153.111.126 0:0:0:0:0:ffff:cb99:6f7e
203.153.111.127 0:0:0:0:0:ffff:cb99:6f7f
203.153.111.128 0:0:0:0:0:ffff:cb99:6f80
203.153.111.129 0:0:0:0:0:ffff:cb99:6f81
203.153.111.130 0:0:0:0:0:ffff:cb99:6f82
203.153.111.131 0:0:0:0:0:ffff:cb99:6f83
203.153.111.132 0:0:0:0:0:ffff:cb99:6f84
203.153.111.133 0:0:0:0:0:ffff:cb99:6f85
203.153.111.134 0:0:0:0:0:ffff:cb99:6f86
203.153.111.135 0:0:0:0:0:ffff:cb99:6f87
203.153.111.136 0:0:0:0:0:ffff:cb99:6f88
203.153.111.137 0:0:0:0:0:ffff:cb99:6f89
203.153.111.138 0:0:0:0:0:ffff:cb99:6f8a
203.153.111.139 0:0:0:0:0:ffff:cb99:6f8b
203.153.111.140 0:0:0:0:0:ffff:cb99:6f8c
203.153.111.141 0:0:0:0:0:ffff:cb99:6f8d
203.153.111.142 0:0:0:0:0:ffff:cb99:6f8e
203.153.111.143 0:0:0:0:0:ffff:cb99:6f8f
203.153.111.144 0:0:0:0:0:ffff:cb99:6f90
203.153.111.145 0:0:0:0:0:ffff:cb99:6f91
203.153.111.146 0:0:0:0:0:ffff:cb99:6f92
203.153.111.147 0:0:0:0:0:ffff:cb99:6f93
203.153.111.148 0:0:0:0:0:ffff:cb99:6f94
203.153.111.149 0:0:0:0:0:ffff:cb99:6f95
203.153.111.150 0:0:0:0:0:ffff:cb99:6f96
203.153.111.151 0:0:0:0:0:ffff:cb99:6f97
203.153.111.152 0:0:0:0:0:ffff:cb99:6f98
203.153.111.153 0:0:0:0:0:ffff:cb99:6f99
203.153.111.154 0:0:0:0:0:ffff:cb99:6f9a
203.153.111.155 0:0:0:0:0:ffff:cb99:6f9b
203.153.111.156 0:0:0:0:0:ffff:cb99:6f9c
203.153.111.157 0:0:0:0:0:ffff:cb99:6f9d
203.153.111.158 0:0:0:0:0:ffff:cb99:6f9e
203.153.111.159 0:0:0:0:0:ffff:cb99:6f9f
203.153.111.160 0:0:0:0:0:ffff:cb99:6fa0
203.153.111.161 0:0:0:0:0:ffff:cb99:6fa1
203.153.111.162 0:0:0:0:0:ffff:cb99:6fa2
203.153.111.163 0:0:0:0:0:ffff:cb99:6fa3
203.153.111.164 0:0:0:0:0:ffff:cb99:6fa4
203.153.111.165 0:0:0:0:0:ffff:cb99:6fa5
203.153.111.166 0:0:0:0:0:ffff:cb99:6fa6
203.153.111.167 0:0:0:0:0:ffff:cb99:6fa7
203.153.111.168 0:0:0:0:0:ffff:cb99:6fa8
203.153.111.169 0:0:0:0:0:ffff:cb99:6fa9
203.153.111.170 0:0:0:0:0:ffff:cb99:6faa
203.153.111.171 0:0:0:0:0:ffff:cb99:6fab
203.153.111.172 0:0:0:0:0:ffff:cb99:6fac
203.153.111.173 0:0:0:0:0:ffff:cb99:6fad
203.153.111.174 0:0:0:0:0:ffff:cb99:6fae
203.153.111.175 0:0:0:0:0:ffff:cb99:6faf
203.153.111.176 0:0:0:0:0:ffff:cb99:6fb0
203.153.111.177 0:0:0:0:0:ffff:cb99:6fb1
203.153.111.178 0:0:0:0:0:ffff:cb99:6fb2
203.153.111.179 0:0:0:0:0:ffff:cb99:6fb3
203.153.111.180 0:0:0:0:0:ffff:cb99:6fb4


203.153.111.181 0:0:0:0:0:ffff:cb99:6fb5
203.153.111.182 0:0:0:0:0:ffff:cb99:6fb6
203.153.111.183 0:0:0:0:0:ffff:cb99:6fb7
203.153.111.184 0:0:0:0:0:ffff:cb99:6fb8
203.153.111.185 0:0:0:0:0:ffff:cb99:6fb9
203.153.111.186 0:0:0:0:0:ffff:cb99:6fba
203.153.111.187 0:0:0:0:0:ffff:cb99:6fbb
203.153.111.188 0:0:0:0:0:ffff:cb99:6fbc
203.153.111.189 0:0:0:0:0:ffff:cb99:6fbd
203.153.111.190 0:0:0:0:0:ffff:cb99:6fbe
203.153.111.191 0:0:0:0:0:ffff:cb99:6fbf
203.153.111.192 0:0:0:0:0:ffff:cb99:6fc0
203.153.111.193 0:0:0:0:0:ffff:cb99:6fc1
203.153.111.194 0:0:0:0:0:ffff:cb99:6fc2
203.153.111.195 0:0:0:0:0:ffff:cb99:6fc3
203.153.111.196 0:0:0:0:0:ffff:cb99:6fc4
203.153.111.197 0:0:0:0:0:ffff:cb99:6fc5
203.153.111.198 0:0:0:0:0:ffff:cb99:6fc6
203.153.111.199 0:0:0:0:0:ffff:cb99:6fc7
203.153.111.200 0:0:0:0:0:ffff:cb99:6fc8
203.153.111.201 0:0:0:0:0:ffff:cb99:6fc9
203.153.111.202 0:0:0:0:0:ffff:cb99:6fca
203.153.111.203 0:0:0:0:0:ffff:cb99:6fcb
203.153.111.204 0:0:0:0:0:ffff:cb99:6fcc
203.153.111.205 0:0:0:0:0:ffff:cb99:6fcd
203.153.111.206 0:0:0:0:0:ffff:cb99:6fce
203.153.111.207 0:0:0:0:0:ffff:cb99:6fcf
203.153.111.208 0:0:0:0:0:ffff:cb99:6fd0
203.153.111.209 0:0:0:0:0:ffff:cb99:6fd1
203.153.111.210 0:0:0:0:0:ffff:cb99:6fd2
203.153.111.211 0:0:0:0:0:ffff:cb99:6fd3
203.153.111.212 0:0:0:0:0:ffff:cb99:6fd4
203.153.111.213 0:0:0:0:0:ffff:cb99:6fd5
203.153.111.214 0:0:0:0:0:ffff:cb99:6fd6
203.153.111.215 0:0:0:0:0:ffff:cb99:6fd7
203.153.111.216 0:0:0:0:0:ffff:cb99:6fd8
203.153.111.217 0:0:0:0:0:ffff:cb99:6fd9
203.153.111.218 0:0:0:0:0:ffff:cb99:6fda
203.153.111.219 0:0:0:0:0:ffff:cb99:6fdb
203.153.111.220 0:0:0:0:0:ffff:cb99:6fdc
203.153.111.221 0:0:0:0:0:ffff:cb99:6fdd
203.153.111.222 0:0:0:0:0:ffff:cb99:6fde
203.153.111.223 0:0:0:0:0:ffff:cb99:6fdf
203.153.111.224 0:0:0:0:0:ffff:cb99:6fe0
203.153.111.225 0:0:0:0:0:ffff:cb99:6fe1
203.153.111.226 0:0:0:0:0:ffff:cb99:6fe2
203.153.111.227 0:0:0:0:0:ffff:cb99:6fe3
203.153.111.228 0:0:0:0:0:ffff:cb99:6fe4
203.153.111.229 0:0:0:0:0:ffff:cb99:6fe5
203.153.111.230 0:0:0:0:0:ffff:cb99:6fe6
203.153.111.231 0:0:0:0:0:ffff:cb99:6fe7
203.153.111.232 0:0:0:0:0:ffff:cb99:6fe8
203.153.111.233 0:0:0:0:0:ffff:cb99:6fe9
203.153.111.234 0:0:0:0:0:ffff:cb99:6fea
203.153.111.235 0:0:0:0:0:ffff:cb99:6feb
203.153.111.236 0:0:0:0:0:ffff:cb99:6fec
203.153.111.237 0:0:0:0:0:ffff:cb99:6fed
203.153.111.238 0:0:0:0:0:ffff:cb99:6fee
203.153.111.239 0:0:0:0:0:ffff:cb99:6fef
203.153.111.240 0:0:0:0:0:ffff:cb99:6ff0
203.153.111.241 0:0:0:0:0:ffff:cb99:6ff1
203.153.111.242 0:0:0:0:0:ffff:cb99:6ff2
203.153.111.243 0:0:0:0:0:ffff:cb99:6ff3
203.153.111.244 0:0:0:0:0:ffff:cb99:6ff4
203.153.111.245 0:0:0:0:0:ffff:cb99:6ff5
203.153.111.246 0:0:0:0:0:ffff:cb99:6ff6
203.153.111.247 0:0:0:0:0:ffff:cb99:6ff7
203.153.111.248 0:0:0:0:0:ffff:cb99:6ff8
203.153.111.249 0:0:0:0:0:ffff:cb99:6ff9
203.153.111.250 0:0:0:0:0:ffff:cb99:6ffa
203.153.111.251 0:0:0:0:0:ffff:cb99:6ffb
203.153.111.252 0:0:0:0:0:ffff:cb99:6ffc
203.153.111.253 0:0:0:0:0:ffff:cb99:6ffd
203.153.111.254 0:0:0:0:0:ffff:cb99:6ffe
203.153.111.255 0:0:0:0:0:ffff:cb99:6fff


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.