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
139.12.127.1 0:0:0:0:0:ffff:8b0c:7f01
139.12.127.2 0:0:0:0:0:ffff:8b0c:7f02
139.12.127.3 0:0:0:0:0:ffff:8b0c:7f03
139.12.127.4 0:0:0:0:0:ffff:8b0c:7f04
139.12.127.5 0:0:0:0:0:ffff:8b0c:7f05
139.12.127.6 0:0:0:0:0:ffff:8b0c:7f06
139.12.127.7 0:0:0:0:0:ffff:8b0c:7f07
139.12.127.8 0:0:0:0:0:ffff:8b0c:7f08
139.12.127.9 0:0:0:0:0:ffff:8b0c:7f09
139.12.127.10 0:0:0:0:0:ffff:8b0c:7f0a
139.12.127.11 0:0:0:0:0:ffff:8b0c:7f0b
139.12.127.12 0:0:0:0:0:ffff:8b0c:7f0c
139.12.127.13 0:0:0:0:0:ffff:8b0c:7f0d
139.12.127.14 0:0:0:0:0:ffff:8b0c:7f0e
139.12.127.15 0:0:0:0:0:ffff:8b0c:7f0f
139.12.127.16 0:0:0:0:0:ffff:8b0c:7f10
139.12.127.17 0:0:0:0:0:ffff:8b0c:7f11
139.12.127.18 0:0:0:0:0:ffff:8b0c:7f12
139.12.127.19 0:0:0:0:0:ffff:8b0c:7f13
139.12.127.20 0:0:0:0:0:ffff:8b0c:7f14
139.12.127.21 0:0:0:0:0:ffff:8b0c:7f15
139.12.127.22 0:0:0:0:0:ffff:8b0c:7f16
139.12.127.23 0:0:0:0:0:ffff:8b0c:7f17
139.12.127.24 0:0:0:0:0:ffff:8b0c:7f18
139.12.127.25 0:0:0:0:0:ffff:8b0c:7f19
139.12.127.26 0:0:0:0:0:ffff:8b0c:7f1a
139.12.127.27 0:0:0:0:0:ffff:8b0c:7f1b
139.12.127.28 0:0:0:0:0:ffff:8b0c:7f1c
139.12.127.29 0:0:0:0:0:ffff:8b0c:7f1d
139.12.127.30 0:0:0:0:0:ffff:8b0c:7f1e
139.12.127.31 0:0:0:0:0:ffff:8b0c:7f1f
139.12.127.32 0:0:0:0:0:ffff:8b0c:7f20
139.12.127.33 0:0:0:0:0:ffff:8b0c:7f21
139.12.127.34 0:0:0:0:0:ffff:8b0c:7f22
139.12.127.35 0:0:0:0:0:ffff:8b0c:7f23
139.12.127.36 0:0:0:0:0:ffff:8b0c:7f24
139.12.127.37 0:0:0:0:0:ffff:8b0c:7f25
139.12.127.38 0:0:0:0:0:ffff:8b0c:7f26
139.12.127.39 0:0:0:0:0:ffff:8b0c:7f27
139.12.127.40 0:0:0:0:0:ffff:8b0c:7f28
139.12.127.41 0:0:0:0:0:ffff:8b0c:7f29
139.12.127.42 0:0:0:0:0:ffff:8b0c:7f2a
139.12.127.43 0:0:0:0:0:ffff:8b0c:7f2b
139.12.127.44 0:0:0:0:0:ffff:8b0c:7f2c
139.12.127.45 0:0:0:0:0:ffff:8b0c:7f2d
139.12.127.46 0:0:0:0:0:ffff:8b0c:7f2e
139.12.127.47 0:0:0:0:0:ffff:8b0c:7f2f
139.12.127.48 0:0:0:0:0:ffff:8b0c:7f30
139.12.127.49 0:0:0:0:0:ffff:8b0c:7f31
139.12.127.50 0:0:0:0:0:ffff:8b0c:7f32
139.12.127.51 0:0:0:0:0:ffff:8b0c:7f33
139.12.127.52 0:0:0:0:0:ffff:8b0c:7f34
139.12.127.53 0:0:0:0:0:ffff:8b0c:7f35
139.12.127.54 0:0:0:0:0:ffff:8b0c:7f36
139.12.127.55 0:0:0:0:0:ffff:8b0c:7f37
139.12.127.56 0:0:0:0:0:ffff:8b0c:7f38
139.12.127.57 0:0:0:0:0:ffff:8b0c:7f39
139.12.127.58 0:0:0:0:0:ffff:8b0c:7f3a
139.12.127.59 0:0:0:0:0:ffff:8b0c:7f3b
139.12.127.60 0:0:0:0:0:ffff:8b0c:7f3c


139.12.127.61 0:0:0:0:0:ffff:8b0c:7f3d
139.12.127.62 0:0:0:0:0:ffff:8b0c:7f3e
139.12.127.63 0:0:0:0:0:ffff:8b0c:7f3f
139.12.127.64 0:0:0:0:0:ffff:8b0c:7f40
139.12.127.65 0:0:0:0:0:ffff:8b0c:7f41
139.12.127.66 0:0:0:0:0:ffff:8b0c:7f42
139.12.127.67 0:0:0:0:0:ffff:8b0c:7f43
139.12.127.68 0:0:0:0:0:ffff:8b0c:7f44
139.12.127.69 0:0:0:0:0:ffff:8b0c:7f45
139.12.127.70 0:0:0:0:0:ffff:8b0c:7f46
139.12.127.71 0:0:0:0:0:ffff:8b0c:7f47
139.12.127.72 0:0:0:0:0:ffff:8b0c:7f48
139.12.127.73 0:0:0:0:0:ffff:8b0c:7f49
139.12.127.74 0:0:0:0:0:ffff:8b0c:7f4a
139.12.127.75 0:0:0:0:0:ffff:8b0c:7f4b
139.12.127.76 0:0:0:0:0:ffff:8b0c:7f4c
139.12.127.77 0:0:0:0:0:ffff:8b0c:7f4d
139.12.127.78 0:0:0:0:0:ffff:8b0c:7f4e
139.12.127.79 0:0:0:0:0:ffff:8b0c:7f4f
139.12.127.80 0:0:0:0:0:ffff:8b0c:7f50
139.12.127.81 0:0:0:0:0:ffff:8b0c:7f51
139.12.127.82 0:0:0:0:0:ffff:8b0c:7f52
139.12.127.83 0:0:0:0:0:ffff:8b0c:7f53
139.12.127.84 0:0:0:0:0:ffff:8b0c:7f54
139.12.127.85 0:0:0:0:0:ffff:8b0c:7f55
139.12.127.86 0:0:0:0:0:ffff:8b0c:7f56
139.12.127.87 0:0:0:0:0:ffff:8b0c:7f57
139.12.127.88 0:0:0:0:0:ffff:8b0c:7f58
139.12.127.89 0:0:0:0:0:ffff:8b0c:7f59
139.12.127.90 0:0:0:0:0:ffff:8b0c:7f5a
139.12.127.91 0:0:0:0:0:ffff:8b0c:7f5b
139.12.127.92 0:0:0:0:0:ffff:8b0c:7f5c
139.12.127.93 0:0:0:0:0:ffff:8b0c:7f5d
139.12.127.94 0:0:0:0:0:ffff:8b0c:7f5e
139.12.127.95 0:0:0:0:0:ffff:8b0c:7f5f
139.12.127.96 0:0:0:0:0:ffff:8b0c:7f60
139.12.127.97 0:0:0:0:0:ffff:8b0c:7f61
139.12.127.98 0:0:0:0:0:ffff:8b0c:7f62
139.12.127.99 0:0:0:0:0:ffff:8b0c:7f63
139.12.127.100 0:0:0:0:0:ffff:8b0c:7f64
139.12.127.101 0:0:0:0:0:ffff:8b0c:7f65
139.12.127.102 0:0:0:0:0:ffff:8b0c:7f66
139.12.127.103 0:0:0:0:0:ffff:8b0c:7f67
139.12.127.104 0:0:0:0:0:ffff:8b0c:7f68
139.12.127.105 0:0:0:0:0:ffff:8b0c:7f69
139.12.127.106 0:0:0:0:0:ffff:8b0c:7f6a
139.12.127.107 0:0:0:0:0:ffff:8b0c:7f6b
139.12.127.108 0:0:0:0:0:ffff:8b0c:7f6c
139.12.127.109 0:0:0:0:0:ffff:8b0c:7f6d
139.12.127.110 0:0:0:0:0:ffff:8b0c:7f6e
139.12.127.111 0:0:0:0:0:ffff:8b0c:7f6f
139.12.127.112 0:0:0:0:0:ffff:8b0c:7f70
139.12.127.113 0:0:0:0:0:ffff:8b0c:7f71
139.12.127.114 0:0:0:0:0:ffff:8b0c:7f72
139.12.127.115 0:0:0:0:0:ffff:8b0c:7f73
139.12.127.116 0:0:0:0:0:ffff:8b0c:7f74
139.12.127.117 0:0:0:0:0:ffff:8b0c:7f75
139.12.127.118 0:0:0:0:0:ffff:8b0c:7f76
139.12.127.119 0:0:0:0:0:ffff:8b0c:7f77
139.12.127.120 0:0:0:0:0:ffff:8b0c:7f78


139.12.127.121 0:0:0:0:0:ffff:8b0c:7f79
139.12.127.122 0:0:0:0:0:ffff:8b0c:7f7a
139.12.127.123 0:0:0:0:0:ffff:8b0c:7f7b
139.12.127.124 0:0:0:0:0:ffff:8b0c:7f7c
139.12.127.125 0:0:0:0:0:ffff:8b0c:7f7d
139.12.127.126 0:0:0:0:0:ffff:8b0c:7f7e
139.12.127.127 0:0:0:0:0:ffff:8b0c:7f7f
139.12.127.128 0:0:0:0:0:ffff:8b0c:7f80
139.12.127.129 0:0:0:0:0:ffff:8b0c:7f81
139.12.127.130 0:0:0:0:0:ffff:8b0c:7f82
139.12.127.131 0:0:0:0:0:ffff:8b0c:7f83
139.12.127.132 0:0:0:0:0:ffff:8b0c:7f84
139.12.127.133 0:0:0:0:0:ffff:8b0c:7f85
139.12.127.134 0:0:0:0:0:ffff:8b0c:7f86
139.12.127.135 0:0:0:0:0:ffff:8b0c:7f87
139.12.127.136 0:0:0:0:0:ffff:8b0c:7f88
139.12.127.137 0:0:0:0:0:ffff:8b0c:7f89
139.12.127.138 0:0:0:0:0:ffff:8b0c:7f8a
139.12.127.139 0:0:0:0:0:ffff:8b0c:7f8b
139.12.127.140 0:0:0:0:0:ffff:8b0c:7f8c
139.12.127.141 0:0:0:0:0:ffff:8b0c:7f8d
139.12.127.142 0:0:0:0:0:ffff:8b0c:7f8e
139.12.127.143 0:0:0:0:0:ffff:8b0c:7f8f
139.12.127.144 0:0:0:0:0:ffff:8b0c:7f90
139.12.127.145 0:0:0:0:0:ffff:8b0c:7f91
139.12.127.146 0:0:0:0:0:ffff:8b0c:7f92
139.12.127.147 0:0:0:0:0:ffff:8b0c:7f93
139.12.127.148 0:0:0:0:0:ffff:8b0c:7f94
139.12.127.149 0:0:0:0:0:ffff:8b0c:7f95
139.12.127.150 0:0:0:0:0:ffff:8b0c:7f96
139.12.127.151 0:0:0:0:0:ffff:8b0c:7f97
139.12.127.152 0:0:0:0:0:ffff:8b0c:7f98
139.12.127.153 0:0:0:0:0:ffff:8b0c:7f99
139.12.127.154 0:0:0:0:0:ffff:8b0c:7f9a
139.12.127.155 0:0:0:0:0:ffff:8b0c:7f9b
139.12.127.156 0:0:0:0:0:ffff:8b0c:7f9c
139.12.127.157 0:0:0:0:0:ffff:8b0c:7f9d
139.12.127.158 0:0:0:0:0:ffff:8b0c:7f9e
139.12.127.159 0:0:0:0:0:ffff:8b0c:7f9f
139.12.127.160 0:0:0:0:0:ffff:8b0c:7fa0
139.12.127.161 0:0:0:0:0:ffff:8b0c:7fa1
139.12.127.162 0:0:0:0:0:ffff:8b0c:7fa2
139.12.127.163 0:0:0:0:0:ffff:8b0c:7fa3
139.12.127.164 0:0:0:0:0:ffff:8b0c:7fa4
139.12.127.165 0:0:0:0:0:ffff:8b0c:7fa5
139.12.127.166 0:0:0:0:0:ffff:8b0c:7fa6
139.12.127.167 0:0:0:0:0:ffff:8b0c:7fa7
139.12.127.168 0:0:0:0:0:ffff:8b0c:7fa8
139.12.127.169 0:0:0:0:0:ffff:8b0c:7fa9
139.12.127.170 0:0:0:0:0:ffff:8b0c:7faa
139.12.127.171 0:0:0:0:0:ffff:8b0c:7fab
139.12.127.172 0:0:0:0:0:ffff:8b0c:7fac
139.12.127.173 0:0:0:0:0:ffff:8b0c:7fad
139.12.127.174 0:0:0:0:0:ffff:8b0c:7fae
139.12.127.175 0:0:0:0:0:ffff:8b0c:7faf
139.12.127.176 0:0:0:0:0:ffff:8b0c:7fb0
139.12.127.177 0:0:0:0:0:ffff:8b0c:7fb1
139.12.127.178 0:0:0:0:0:ffff:8b0c:7fb2
139.12.127.179 0:0:0:0:0:ffff:8b0c:7fb3
139.12.127.180 0:0:0:0:0:ffff:8b0c:7fb4


139.12.127.181 0:0:0:0:0:ffff:8b0c:7fb5
139.12.127.182 0:0:0:0:0:ffff:8b0c:7fb6
139.12.127.183 0:0:0:0:0:ffff:8b0c:7fb7
139.12.127.184 0:0:0:0:0:ffff:8b0c:7fb8
139.12.127.185 0:0:0:0:0:ffff:8b0c:7fb9
139.12.127.186 0:0:0:0:0:ffff:8b0c:7fba
139.12.127.187 0:0:0:0:0:ffff:8b0c:7fbb
139.12.127.188 0:0:0:0:0:ffff:8b0c:7fbc
139.12.127.189 0:0:0:0:0:ffff:8b0c:7fbd
139.12.127.190 0:0:0:0:0:ffff:8b0c:7fbe
139.12.127.191 0:0:0:0:0:ffff:8b0c:7fbf
139.12.127.192 0:0:0:0:0:ffff:8b0c:7fc0
139.12.127.193 0:0:0:0:0:ffff:8b0c:7fc1
139.12.127.194 0:0:0:0:0:ffff:8b0c:7fc2
139.12.127.195 0:0:0:0:0:ffff:8b0c:7fc3
139.12.127.196 0:0:0:0:0:ffff:8b0c:7fc4
139.12.127.197 0:0:0:0:0:ffff:8b0c:7fc5
139.12.127.198 0:0:0:0:0:ffff:8b0c:7fc6
139.12.127.199 0:0:0:0:0:ffff:8b0c:7fc7
139.12.127.200 0:0:0:0:0:ffff:8b0c:7fc8
139.12.127.201 0:0:0:0:0:ffff:8b0c:7fc9
139.12.127.202 0:0:0:0:0:ffff:8b0c:7fca
139.12.127.203 0:0:0:0:0:ffff:8b0c:7fcb
139.12.127.204 0:0:0:0:0:ffff:8b0c:7fcc
139.12.127.205 0:0:0:0:0:ffff:8b0c:7fcd
139.12.127.206 0:0:0:0:0:ffff:8b0c:7fce
139.12.127.207 0:0:0:0:0:ffff:8b0c:7fcf
139.12.127.208 0:0:0:0:0:ffff:8b0c:7fd0
139.12.127.209 0:0:0:0:0:ffff:8b0c:7fd1
139.12.127.210 0:0:0:0:0:ffff:8b0c:7fd2
139.12.127.211 0:0:0:0:0:ffff:8b0c:7fd3
139.12.127.212 0:0:0:0:0:ffff:8b0c:7fd4
139.12.127.213 0:0:0:0:0:ffff:8b0c:7fd5
139.12.127.214 0:0:0:0:0:ffff:8b0c:7fd6
139.12.127.215 0:0:0:0:0:ffff:8b0c:7fd7
139.12.127.216 0:0:0:0:0:ffff:8b0c:7fd8
139.12.127.217 0:0:0:0:0:ffff:8b0c:7fd9
139.12.127.218 0:0:0:0:0:ffff:8b0c:7fda
139.12.127.219 0:0:0:0:0:ffff:8b0c:7fdb
139.12.127.220 0:0:0:0:0:ffff:8b0c:7fdc
139.12.127.221 0:0:0:0:0:ffff:8b0c:7fdd
139.12.127.222 0:0:0:0:0:ffff:8b0c:7fde
139.12.127.223 0:0:0:0:0:ffff:8b0c:7fdf
139.12.127.224 0:0:0:0:0:ffff:8b0c:7fe0
139.12.127.225 0:0:0:0:0:ffff:8b0c:7fe1
139.12.127.226 0:0:0:0:0:ffff:8b0c:7fe2
139.12.127.227 0:0:0:0:0:ffff:8b0c:7fe3
139.12.127.228 0:0:0:0:0:ffff:8b0c:7fe4
139.12.127.229 0:0:0:0:0:ffff:8b0c:7fe5
139.12.127.230 0:0:0:0:0:ffff:8b0c:7fe6
139.12.127.231 0:0:0:0:0:ffff:8b0c:7fe7
139.12.127.232 0:0:0:0:0:ffff:8b0c:7fe8
139.12.127.233 0:0:0:0:0:ffff:8b0c:7fe9
139.12.127.234 0:0:0:0:0:ffff:8b0c:7fea
139.12.127.235 0:0:0:0:0:ffff:8b0c:7feb
139.12.127.236 0:0:0:0:0:ffff:8b0c:7fec
139.12.127.237 0:0:0:0:0:ffff:8b0c:7fed
139.12.127.238 0:0:0:0:0:ffff:8b0c:7fee
139.12.127.239 0:0:0:0:0:ffff:8b0c:7fef
139.12.127.240 0:0:0:0:0:ffff:8b0c:7ff0
139.12.127.241 0:0:0:0:0:ffff:8b0c:7ff1
139.12.127.242 0:0:0:0:0:ffff:8b0c:7ff2
139.12.127.243 0:0:0:0:0:ffff:8b0c:7ff3
139.12.127.244 0:0:0:0:0:ffff:8b0c:7ff4
139.12.127.245 0:0:0:0:0:ffff:8b0c:7ff5
139.12.127.246 0:0:0:0:0:ffff:8b0c:7ff6
139.12.127.247 0:0:0:0:0:ffff:8b0c:7ff7
139.12.127.248 0:0:0:0:0:ffff:8b0c:7ff8
139.12.127.249 0:0:0:0:0:ffff:8b0c:7ff9
139.12.127.250 0:0:0:0:0:ffff:8b0c:7ffa
139.12.127.251 0:0:0:0:0:ffff:8b0c:7ffb
139.12.127.252 0:0:0:0:0:ffff:8b0c:7ffc
139.12.127.253 0:0:0:0:0:ffff:8b0c:7ffd
139.12.127.254 0:0:0:0:0:ffff:8b0c:7ffe
139.12.127.255 0:0:0:0:0:ffff:8b0c:7fff


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.