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
126.123.111.1 0:0:0:0:0:ffff:7e7b:6f01
126.123.111.2 0:0:0:0:0:ffff:7e7b:6f02
126.123.111.3 0:0:0:0:0:ffff:7e7b:6f03
126.123.111.4 0:0:0:0:0:ffff:7e7b:6f04
126.123.111.5 0:0:0:0:0:ffff:7e7b:6f05
126.123.111.6 0:0:0:0:0:ffff:7e7b:6f06
126.123.111.7 0:0:0:0:0:ffff:7e7b:6f07
126.123.111.8 0:0:0:0:0:ffff:7e7b:6f08
126.123.111.9 0:0:0:0:0:ffff:7e7b:6f09
126.123.111.10 0:0:0:0:0:ffff:7e7b:6f0a
126.123.111.11 0:0:0:0:0:ffff:7e7b:6f0b
126.123.111.12 0:0:0:0:0:ffff:7e7b:6f0c
126.123.111.13 0:0:0:0:0:ffff:7e7b:6f0d
126.123.111.14 0:0:0:0:0:ffff:7e7b:6f0e
126.123.111.15 0:0:0:0:0:ffff:7e7b:6f0f
126.123.111.16 0:0:0:0:0:ffff:7e7b:6f10
126.123.111.17 0:0:0:0:0:ffff:7e7b:6f11
126.123.111.18 0:0:0:0:0:ffff:7e7b:6f12
126.123.111.19 0:0:0:0:0:ffff:7e7b:6f13
126.123.111.20 0:0:0:0:0:ffff:7e7b:6f14
126.123.111.21 0:0:0:0:0:ffff:7e7b:6f15
126.123.111.22 0:0:0:0:0:ffff:7e7b:6f16
126.123.111.23 0:0:0:0:0:ffff:7e7b:6f17
126.123.111.24 0:0:0:0:0:ffff:7e7b:6f18
126.123.111.25 0:0:0:0:0:ffff:7e7b:6f19
126.123.111.26 0:0:0:0:0:ffff:7e7b:6f1a
126.123.111.27 0:0:0:0:0:ffff:7e7b:6f1b
126.123.111.28 0:0:0:0:0:ffff:7e7b:6f1c
126.123.111.29 0:0:0:0:0:ffff:7e7b:6f1d
126.123.111.30 0:0:0:0:0:ffff:7e7b:6f1e
126.123.111.31 0:0:0:0:0:ffff:7e7b:6f1f
126.123.111.32 0:0:0:0:0:ffff:7e7b:6f20
126.123.111.33 0:0:0:0:0:ffff:7e7b:6f21
126.123.111.34 0:0:0:0:0:ffff:7e7b:6f22
126.123.111.35 0:0:0:0:0:ffff:7e7b:6f23
126.123.111.36 0:0:0:0:0:ffff:7e7b:6f24
126.123.111.37 0:0:0:0:0:ffff:7e7b:6f25
126.123.111.38 0:0:0:0:0:ffff:7e7b:6f26
126.123.111.39 0:0:0:0:0:ffff:7e7b:6f27
126.123.111.40 0:0:0:0:0:ffff:7e7b:6f28
126.123.111.41 0:0:0:0:0:ffff:7e7b:6f29
126.123.111.42 0:0:0:0:0:ffff:7e7b:6f2a
126.123.111.43 0:0:0:0:0:ffff:7e7b:6f2b
126.123.111.44 0:0:0:0:0:ffff:7e7b:6f2c
126.123.111.45 0:0:0:0:0:ffff:7e7b:6f2d
126.123.111.46 0:0:0:0:0:ffff:7e7b:6f2e
126.123.111.47 0:0:0:0:0:ffff:7e7b:6f2f
126.123.111.48 0:0:0:0:0:ffff:7e7b:6f30
126.123.111.49 0:0:0:0:0:ffff:7e7b:6f31
126.123.111.50 0:0:0:0:0:ffff:7e7b:6f32
126.123.111.51 0:0:0:0:0:ffff:7e7b:6f33
126.123.111.52 0:0:0:0:0:ffff:7e7b:6f34
126.123.111.53 0:0:0:0:0:ffff:7e7b:6f35
126.123.111.54 0:0:0:0:0:ffff:7e7b:6f36
126.123.111.55 0:0:0:0:0:ffff:7e7b:6f37
126.123.111.56 0:0:0:0:0:ffff:7e7b:6f38
126.123.111.57 0:0:0:0:0:ffff:7e7b:6f39
126.123.111.58 0:0:0:0:0:ffff:7e7b:6f3a
126.123.111.59 0:0:0:0:0:ffff:7e7b:6f3b
126.123.111.60 0:0:0:0:0:ffff:7e7b:6f3c


126.123.111.61 0:0:0:0:0:ffff:7e7b:6f3d
126.123.111.62 0:0:0:0:0:ffff:7e7b:6f3e
126.123.111.63 0:0:0:0:0:ffff:7e7b:6f3f
126.123.111.64 0:0:0:0:0:ffff:7e7b:6f40
126.123.111.65 0:0:0:0:0:ffff:7e7b:6f41
126.123.111.66 0:0:0:0:0:ffff:7e7b:6f42
126.123.111.67 0:0:0:0:0:ffff:7e7b:6f43
126.123.111.68 0:0:0:0:0:ffff:7e7b:6f44
126.123.111.69 0:0:0:0:0:ffff:7e7b:6f45
126.123.111.70 0:0:0:0:0:ffff:7e7b:6f46
126.123.111.71 0:0:0:0:0:ffff:7e7b:6f47
126.123.111.72 0:0:0:0:0:ffff:7e7b:6f48
126.123.111.73 0:0:0:0:0:ffff:7e7b:6f49
126.123.111.74 0:0:0:0:0:ffff:7e7b:6f4a
126.123.111.75 0:0:0:0:0:ffff:7e7b:6f4b
126.123.111.76 0:0:0:0:0:ffff:7e7b:6f4c
126.123.111.77 0:0:0:0:0:ffff:7e7b:6f4d
126.123.111.78 0:0:0:0:0:ffff:7e7b:6f4e
126.123.111.79 0:0:0:0:0:ffff:7e7b:6f4f
126.123.111.80 0:0:0:0:0:ffff:7e7b:6f50
126.123.111.81 0:0:0:0:0:ffff:7e7b:6f51
126.123.111.82 0:0:0:0:0:ffff:7e7b:6f52
126.123.111.83 0:0:0:0:0:ffff:7e7b:6f53
126.123.111.84 0:0:0:0:0:ffff:7e7b:6f54
126.123.111.85 0:0:0:0:0:ffff:7e7b:6f55
126.123.111.86 0:0:0:0:0:ffff:7e7b:6f56
126.123.111.87 0:0:0:0:0:ffff:7e7b:6f57
126.123.111.88 0:0:0:0:0:ffff:7e7b:6f58
126.123.111.89 0:0:0:0:0:ffff:7e7b:6f59
126.123.111.90 0:0:0:0:0:ffff:7e7b:6f5a
126.123.111.91 0:0:0:0:0:ffff:7e7b:6f5b
126.123.111.92 0:0:0:0:0:ffff:7e7b:6f5c
126.123.111.93 0:0:0:0:0:ffff:7e7b:6f5d
126.123.111.94 0:0:0:0:0:ffff:7e7b:6f5e
126.123.111.95 0:0:0:0:0:ffff:7e7b:6f5f
126.123.111.96 0:0:0:0:0:ffff:7e7b:6f60
126.123.111.97 0:0:0:0:0:ffff:7e7b:6f61
126.123.111.98 0:0:0:0:0:ffff:7e7b:6f62
126.123.111.99 0:0:0:0:0:ffff:7e7b:6f63
126.123.111.100 0:0:0:0:0:ffff:7e7b:6f64
126.123.111.101 0:0:0:0:0:ffff:7e7b:6f65
126.123.111.102 0:0:0:0:0:ffff:7e7b:6f66
126.123.111.103 0:0:0:0:0:ffff:7e7b:6f67
126.123.111.104 0:0:0:0:0:ffff:7e7b:6f68
126.123.111.105 0:0:0:0:0:ffff:7e7b:6f69
126.123.111.106 0:0:0:0:0:ffff:7e7b:6f6a
126.123.111.107 0:0:0:0:0:ffff:7e7b:6f6b
126.123.111.108 0:0:0:0:0:ffff:7e7b:6f6c
126.123.111.109 0:0:0:0:0:ffff:7e7b:6f6d
126.123.111.110 0:0:0:0:0:ffff:7e7b:6f6e
126.123.111.111 0:0:0:0:0:ffff:7e7b:6f6f
126.123.111.112 0:0:0:0:0:ffff:7e7b:6f70
126.123.111.113 0:0:0:0:0:ffff:7e7b:6f71
126.123.111.114 0:0:0:0:0:ffff:7e7b:6f72
126.123.111.115 0:0:0:0:0:ffff:7e7b:6f73
126.123.111.116 0:0:0:0:0:ffff:7e7b:6f74
126.123.111.117 0:0:0:0:0:ffff:7e7b:6f75
126.123.111.118 0:0:0:0:0:ffff:7e7b:6f76
126.123.111.119 0:0:0:0:0:ffff:7e7b:6f77
126.123.111.120 0:0:0:0:0:ffff:7e7b:6f78


126.123.111.121 0:0:0:0:0:ffff:7e7b:6f79
126.123.111.122 0:0:0:0:0:ffff:7e7b:6f7a
126.123.111.123 0:0:0:0:0:ffff:7e7b:6f7b
126.123.111.124 0:0:0:0:0:ffff:7e7b:6f7c
126.123.111.125 0:0:0:0:0:ffff:7e7b:6f7d
126.123.111.126 0:0:0:0:0:ffff:7e7b:6f7e
126.123.111.127 0:0:0:0:0:ffff:7e7b:6f7f
126.123.111.128 0:0:0:0:0:ffff:7e7b:6f80
126.123.111.129 0:0:0:0:0:ffff:7e7b:6f81
126.123.111.130 0:0:0:0:0:ffff:7e7b:6f82
126.123.111.131 0:0:0:0:0:ffff:7e7b:6f83
126.123.111.132 0:0:0:0:0:ffff:7e7b:6f84
126.123.111.133 0:0:0:0:0:ffff:7e7b:6f85
126.123.111.134 0:0:0:0:0:ffff:7e7b:6f86
126.123.111.135 0:0:0:0:0:ffff:7e7b:6f87
126.123.111.136 0:0:0:0:0:ffff:7e7b:6f88
126.123.111.137 0:0:0:0:0:ffff:7e7b:6f89
126.123.111.138 0:0:0:0:0:ffff:7e7b:6f8a
126.123.111.139 0:0:0:0:0:ffff:7e7b:6f8b
126.123.111.140 0:0:0:0:0:ffff:7e7b:6f8c
126.123.111.141 0:0:0:0:0:ffff:7e7b:6f8d
126.123.111.142 0:0:0:0:0:ffff:7e7b:6f8e
126.123.111.143 0:0:0:0:0:ffff:7e7b:6f8f
126.123.111.144 0:0:0:0:0:ffff:7e7b:6f90
126.123.111.145 0:0:0:0:0:ffff:7e7b:6f91
126.123.111.146 0:0:0:0:0:ffff:7e7b:6f92
126.123.111.147 0:0:0:0:0:ffff:7e7b:6f93
126.123.111.148 0:0:0:0:0:ffff:7e7b:6f94
126.123.111.149 0:0:0:0:0:ffff:7e7b:6f95
126.123.111.150 0:0:0:0:0:ffff:7e7b:6f96
126.123.111.151 0:0:0:0:0:ffff:7e7b:6f97
126.123.111.152 0:0:0:0:0:ffff:7e7b:6f98
126.123.111.153 0:0:0:0:0:ffff:7e7b:6f99
126.123.111.154 0:0:0:0:0:ffff:7e7b:6f9a
126.123.111.155 0:0:0:0:0:ffff:7e7b:6f9b
126.123.111.156 0:0:0:0:0:ffff:7e7b:6f9c
126.123.111.157 0:0:0:0:0:ffff:7e7b:6f9d
126.123.111.158 0:0:0:0:0:ffff:7e7b:6f9e
126.123.111.159 0:0:0:0:0:ffff:7e7b:6f9f
126.123.111.160 0:0:0:0:0:ffff:7e7b:6fa0
126.123.111.161 0:0:0:0:0:ffff:7e7b:6fa1
126.123.111.162 0:0:0:0:0:ffff:7e7b:6fa2
126.123.111.163 0:0:0:0:0:ffff:7e7b:6fa3
126.123.111.164 0:0:0:0:0:ffff:7e7b:6fa4
126.123.111.165 0:0:0:0:0:ffff:7e7b:6fa5
126.123.111.166 0:0:0:0:0:ffff:7e7b:6fa6
126.123.111.167 0:0:0:0:0:ffff:7e7b:6fa7
126.123.111.168 0:0:0:0:0:ffff:7e7b:6fa8
126.123.111.169 0:0:0:0:0:ffff:7e7b:6fa9
126.123.111.170 0:0:0:0:0:ffff:7e7b:6faa
126.123.111.171 0:0:0:0:0:ffff:7e7b:6fab
126.123.111.172 0:0:0:0:0:ffff:7e7b:6fac
126.123.111.173 0:0:0:0:0:ffff:7e7b:6fad
126.123.111.174 0:0:0:0:0:ffff:7e7b:6fae
126.123.111.175 0:0:0:0:0:ffff:7e7b:6faf
126.123.111.176 0:0:0:0:0:ffff:7e7b:6fb0
126.123.111.177 0:0:0:0:0:ffff:7e7b:6fb1
126.123.111.178 0:0:0:0:0:ffff:7e7b:6fb2
126.123.111.179 0:0:0:0:0:ffff:7e7b:6fb3
126.123.111.180 0:0:0:0:0:ffff:7e7b:6fb4


126.123.111.181 0:0:0:0:0:ffff:7e7b:6fb5
126.123.111.182 0:0:0:0:0:ffff:7e7b:6fb6
126.123.111.183 0:0:0:0:0:ffff:7e7b:6fb7
126.123.111.184 0:0:0:0:0:ffff:7e7b:6fb8
126.123.111.185 0:0:0:0:0:ffff:7e7b:6fb9
126.123.111.186 0:0:0:0:0:ffff:7e7b:6fba
126.123.111.187 0:0:0:0:0:ffff:7e7b:6fbb
126.123.111.188 0:0:0:0:0:ffff:7e7b:6fbc
126.123.111.189 0:0:0:0:0:ffff:7e7b:6fbd
126.123.111.190 0:0:0:0:0:ffff:7e7b:6fbe
126.123.111.191 0:0:0:0:0:ffff:7e7b:6fbf
126.123.111.192 0:0:0:0:0:ffff:7e7b:6fc0
126.123.111.193 0:0:0:0:0:ffff:7e7b:6fc1
126.123.111.194 0:0:0:0:0:ffff:7e7b:6fc2
126.123.111.195 0:0:0:0:0:ffff:7e7b:6fc3
126.123.111.196 0:0:0:0:0:ffff:7e7b:6fc4
126.123.111.197 0:0:0:0:0:ffff:7e7b:6fc5
126.123.111.198 0:0:0:0:0:ffff:7e7b:6fc6
126.123.111.199 0:0:0:0:0:ffff:7e7b:6fc7
126.123.111.200 0:0:0:0:0:ffff:7e7b:6fc8
126.123.111.201 0:0:0:0:0:ffff:7e7b:6fc9
126.123.111.202 0:0:0:0:0:ffff:7e7b:6fca
126.123.111.203 0:0:0:0:0:ffff:7e7b:6fcb
126.123.111.204 0:0:0:0:0:ffff:7e7b:6fcc
126.123.111.205 0:0:0:0:0:ffff:7e7b:6fcd
126.123.111.206 0:0:0:0:0:ffff:7e7b:6fce
126.123.111.207 0:0:0:0:0:ffff:7e7b:6fcf
126.123.111.208 0:0:0:0:0:ffff:7e7b:6fd0
126.123.111.209 0:0:0:0:0:ffff:7e7b:6fd1
126.123.111.210 0:0:0:0:0:ffff:7e7b:6fd2
126.123.111.211 0:0:0:0:0:ffff:7e7b:6fd3
126.123.111.212 0:0:0:0:0:ffff:7e7b:6fd4
126.123.111.213 0:0:0:0:0:ffff:7e7b:6fd5
126.123.111.214 0:0:0:0:0:ffff:7e7b:6fd6
126.123.111.215 0:0:0:0:0:ffff:7e7b:6fd7
126.123.111.216 0:0:0:0:0:ffff:7e7b:6fd8
126.123.111.217 0:0:0:0:0:ffff:7e7b:6fd9
126.123.111.218 0:0:0:0:0:ffff:7e7b:6fda
126.123.111.219 0:0:0:0:0:ffff:7e7b:6fdb
126.123.111.220 0:0:0:0:0:ffff:7e7b:6fdc
126.123.111.221 0:0:0:0:0:ffff:7e7b:6fdd
126.123.111.222 0:0:0:0:0:ffff:7e7b:6fde
126.123.111.223 0:0:0:0:0:ffff:7e7b:6fdf
126.123.111.224 0:0:0:0:0:ffff:7e7b:6fe0
126.123.111.225 0:0:0:0:0:ffff:7e7b:6fe1
126.123.111.226 0:0:0:0:0:ffff:7e7b:6fe2
126.123.111.227 0:0:0:0:0:ffff:7e7b:6fe3
126.123.111.228 0:0:0:0:0:ffff:7e7b:6fe4
126.123.111.229 0:0:0:0:0:ffff:7e7b:6fe5
126.123.111.230 0:0:0:0:0:ffff:7e7b:6fe6
126.123.111.231 0:0:0:0:0:ffff:7e7b:6fe7
126.123.111.232 0:0:0:0:0:ffff:7e7b:6fe8
126.123.111.233 0:0:0:0:0:ffff:7e7b:6fe9
126.123.111.234 0:0:0:0:0:ffff:7e7b:6fea
126.123.111.235 0:0:0:0:0:ffff:7e7b:6feb
126.123.111.236 0:0:0:0:0:ffff:7e7b:6fec
126.123.111.237 0:0:0:0:0:ffff:7e7b:6fed
126.123.111.238 0:0:0:0:0:ffff:7e7b:6fee
126.123.111.239 0:0:0:0:0:ffff:7e7b:6fef
126.123.111.240 0:0:0:0:0:ffff:7e7b:6ff0
126.123.111.241 0:0:0:0:0:ffff:7e7b:6ff1
126.123.111.242 0:0:0:0:0:ffff:7e7b:6ff2
126.123.111.243 0:0:0:0:0:ffff:7e7b:6ff3
126.123.111.244 0:0:0:0:0:ffff:7e7b:6ff4
126.123.111.245 0:0:0:0:0:ffff:7e7b:6ff5
126.123.111.246 0:0:0:0:0:ffff:7e7b:6ff6
126.123.111.247 0:0:0:0:0:ffff:7e7b:6ff7
126.123.111.248 0:0:0:0:0:ffff:7e7b:6ff8
126.123.111.249 0:0:0:0:0:ffff:7e7b:6ff9
126.123.111.250 0:0:0:0:0:ffff:7e7b:6ffa
126.123.111.251 0:0:0:0:0:ffff:7e7b:6ffb
126.123.111.252 0:0:0:0:0:ffff:7e7b:6ffc
126.123.111.253 0:0:0:0:0:ffff:7e7b:6ffd
126.123.111.254 0:0:0:0:0:ffff:7e7b:6ffe
126.123.111.255 0:0:0:0:0:ffff:7e7b: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.