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
127.73.143.1 0:0:0:0:0:ffff:7f49:8f01
127.73.143.2 0:0:0:0:0:ffff:7f49:8f02
127.73.143.3 0:0:0:0:0:ffff:7f49:8f03
127.73.143.4 0:0:0:0:0:ffff:7f49:8f04
127.73.143.5 0:0:0:0:0:ffff:7f49:8f05
127.73.143.6 0:0:0:0:0:ffff:7f49:8f06
127.73.143.7 0:0:0:0:0:ffff:7f49:8f07
127.73.143.8 0:0:0:0:0:ffff:7f49:8f08
127.73.143.9 0:0:0:0:0:ffff:7f49:8f09
127.73.143.10 0:0:0:0:0:ffff:7f49:8f0a
127.73.143.11 0:0:0:0:0:ffff:7f49:8f0b
127.73.143.12 0:0:0:0:0:ffff:7f49:8f0c
127.73.143.13 0:0:0:0:0:ffff:7f49:8f0d
127.73.143.14 0:0:0:0:0:ffff:7f49:8f0e
127.73.143.15 0:0:0:0:0:ffff:7f49:8f0f
127.73.143.16 0:0:0:0:0:ffff:7f49:8f10
127.73.143.17 0:0:0:0:0:ffff:7f49:8f11
127.73.143.18 0:0:0:0:0:ffff:7f49:8f12
127.73.143.19 0:0:0:0:0:ffff:7f49:8f13
127.73.143.20 0:0:0:0:0:ffff:7f49:8f14
127.73.143.21 0:0:0:0:0:ffff:7f49:8f15
127.73.143.22 0:0:0:0:0:ffff:7f49:8f16
127.73.143.23 0:0:0:0:0:ffff:7f49:8f17
127.73.143.24 0:0:0:0:0:ffff:7f49:8f18
127.73.143.25 0:0:0:0:0:ffff:7f49:8f19
127.73.143.26 0:0:0:0:0:ffff:7f49:8f1a
127.73.143.27 0:0:0:0:0:ffff:7f49:8f1b
127.73.143.28 0:0:0:0:0:ffff:7f49:8f1c
127.73.143.29 0:0:0:0:0:ffff:7f49:8f1d
127.73.143.30 0:0:0:0:0:ffff:7f49:8f1e
127.73.143.31 0:0:0:0:0:ffff:7f49:8f1f
127.73.143.32 0:0:0:0:0:ffff:7f49:8f20
127.73.143.33 0:0:0:0:0:ffff:7f49:8f21
127.73.143.34 0:0:0:0:0:ffff:7f49:8f22
127.73.143.35 0:0:0:0:0:ffff:7f49:8f23
127.73.143.36 0:0:0:0:0:ffff:7f49:8f24
127.73.143.37 0:0:0:0:0:ffff:7f49:8f25
127.73.143.38 0:0:0:0:0:ffff:7f49:8f26
127.73.143.39 0:0:0:0:0:ffff:7f49:8f27
127.73.143.40 0:0:0:0:0:ffff:7f49:8f28
127.73.143.41 0:0:0:0:0:ffff:7f49:8f29
127.73.143.42 0:0:0:0:0:ffff:7f49:8f2a
127.73.143.43 0:0:0:0:0:ffff:7f49:8f2b
127.73.143.44 0:0:0:0:0:ffff:7f49:8f2c
127.73.143.45 0:0:0:0:0:ffff:7f49:8f2d
127.73.143.46 0:0:0:0:0:ffff:7f49:8f2e
127.73.143.47 0:0:0:0:0:ffff:7f49:8f2f
127.73.143.48 0:0:0:0:0:ffff:7f49:8f30
127.73.143.49 0:0:0:0:0:ffff:7f49:8f31
127.73.143.50 0:0:0:0:0:ffff:7f49:8f32
127.73.143.51 0:0:0:0:0:ffff:7f49:8f33
127.73.143.52 0:0:0:0:0:ffff:7f49:8f34
127.73.143.53 0:0:0:0:0:ffff:7f49:8f35
127.73.143.54 0:0:0:0:0:ffff:7f49:8f36
127.73.143.55 0:0:0:0:0:ffff:7f49:8f37
127.73.143.56 0:0:0:0:0:ffff:7f49:8f38
127.73.143.57 0:0:0:0:0:ffff:7f49:8f39
127.73.143.58 0:0:0:0:0:ffff:7f49:8f3a
127.73.143.59 0:0:0:0:0:ffff:7f49:8f3b
127.73.143.60 0:0:0:0:0:ffff:7f49:8f3c


127.73.143.61 0:0:0:0:0:ffff:7f49:8f3d
127.73.143.62 0:0:0:0:0:ffff:7f49:8f3e
127.73.143.63 0:0:0:0:0:ffff:7f49:8f3f
127.73.143.64 0:0:0:0:0:ffff:7f49:8f40
127.73.143.65 0:0:0:0:0:ffff:7f49:8f41
127.73.143.66 0:0:0:0:0:ffff:7f49:8f42
127.73.143.67 0:0:0:0:0:ffff:7f49:8f43
127.73.143.68 0:0:0:0:0:ffff:7f49:8f44
127.73.143.69 0:0:0:0:0:ffff:7f49:8f45
127.73.143.70 0:0:0:0:0:ffff:7f49:8f46
127.73.143.71 0:0:0:0:0:ffff:7f49:8f47
127.73.143.72 0:0:0:0:0:ffff:7f49:8f48
127.73.143.73 0:0:0:0:0:ffff:7f49:8f49
127.73.143.74 0:0:0:0:0:ffff:7f49:8f4a
127.73.143.75 0:0:0:0:0:ffff:7f49:8f4b
127.73.143.76 0:0:0:0:0:ffff:7f49:8f4c
127.73.143.77 0:0:0:0:0:ffff:7f49:8f4d
127.73.143.78 0:0:0:0:0:ffff:7f49:8f4e
127.73.143.79 0:0:0:0:0:ffff:7f49:8f4f
127.73.143.80 0:0:0:0:0:ffff:7f49:8f50
127.73.143.81 0:0:0:0:0:ffff:7f49:8f51
127.73.143.82 0:0:0:0:0:ffff:7f49:8f52
127.73.143.83 0:0:0:0:0:ffff:7f49:8f53
127.73.143.84 0:0:0:0:0:ffff:7f49:8f54
127.73.143.85 0:0:0:0:0:ffff:7f49:8f55
127.73.143.86 0:0:0:0:0:ffff:7f49:8f56
127.73.143.87 0:0:0:0:0:ffff:7f49:8f57
127.73.143.88 0:0:0:0:0:ffff:7f49:8f58
127.73.143.89 0:0:0:0:0:ffff:7f49:8f59
127.73.143.90 0:0:0:0:0:ffff:7f49:8f5a
127.73.143.91 0:0:0:0:0:ffff:7f49:8f5b
127.73.143.92 0:0:0:0:0:ffff:7f49:8f5c
127.73.143.93 0:0:0:0:0:ffff:7f49:8f5d
127.73.143.94 0:0:0:0:0:ffff:7f49:8f5e
127.73.143.95 0:0:0:0:0:ffff:7f49:8f5f
127.73.143.96 0:0:0:0:0:ffff:7f49:8f60
127.73.143.97 0:0:0:0:0:ffff:7f49:8f61
127.73.143.98 0:0:0:0:0:ffff:7f49:8f62
127.73.143.99 0:0:0:0:0:ffff:7f49:8f63
127.73.143.100 0:0:0:0:0:ffff:7f49:8f64
127.73.143.101 0:0:0:0:0:ffff:7f49:8f65
127.73.143.102 0:0:0:0:0:ffff:7f49:8f66
127.73.143.103 0:0:0:0:0:ffff:7f49:8f67
127.73.143.104 0:0:0:0:0:ffff:7f49:8f68
127.73.143.105 0:0:0:0:0:ffff:7f49:8f69
127.73.143.106 0:0:0:0:0:ffff:7f49:8f6a
127.73.143.107 0:0:0:0:0:ffff:7f49:8f6b
127.73.143.108 0:0:0:0:0:ffff:7f49:8f6c
127.73.143.109 0:0:0:0:0:ffff:7f49:8f6d
127.73.143.110 0:0:0:0:0:ffff:7f49:8f6e
127.73.143.111 0:0:0:0:0:ffff:7f49:8f6f
127.73.143.112 0:0:0:0:0:ffff:7f49:8f70
127.73.143.113 0:0:0:0:0:ffff:7f49:8f71
127.73.143.114 0:0:0:0:0:ffff:7f49:8f72
127.73.143.115 0:0:0:0:0:ffff:7f49:8f73
127.73.143.116 0:0:0:0:0:ffff:7f49:8f74
127.73.143.117 0:0:0:0:0:ffff:7f49:8f75
127.73.143.118 0:0:0:0:0:ffff:7f49:8f76
127.73.143.119 0:0:0:0:0:ffff:7f49:8f77
127.73.143.120 0:0:0:0:0:ffff:7f49:8f78


127.73.143.121 0:0:0:0:0:ffff:7f49:8f79
127.73.143.122 0:0:0:0:0:ffff:7f49:8f7a
127.73.143.123 0:0:0:0:0:ffff:7f49:8f7b
127.73.143.124 0:0:0:0:0:ffff:7f49:8f7c
127.73.143.125 0:0:0:0:0:ffff:7f49:8f7d
127.73.143.126 0:0:0:0:0:ffff:7f49:8f7e
127.73.143.127 0:0:0:0:0:ffff:7f49:8f7f
127.73.143.128 0:0:0:0:0:ffff:7f49:8f80
127.73.143.129 0:0:0:0:0:ffff:7f49:8f81
127.73.143.130 0:0:0:0:0:ffff:7f49:8f82
127.73.143.131 0:0:0:0:0:ffff:7f49:8f83
127.73.143.132 0:0:0:0:0:ffff:7f49:8f84
127.73.143.133 0:0:0:0:0:ffff:7f49:8f85
127.73.143.134 0:0:0:0:0:ffff:7f49:8f86
127.73.143.135 0:0:0:0:0:ffff:7f49:8f87
127.73.143.136 0:0:0:0:0:ffff:7f49:8f88
127.73.143.137 0:0:0:0:0:ffff:7f49:8f89
127.73.143.138 0:0:0:0:0:ffff:7f49:8f8a
127.73.143.139 0:0:0:0:0:ffff:7f49:8f8b
127.73.143.140 0:0:0:0:0:ffff:7f49:8f8c
127.73.143.141 0:0:0:0:0:ffff:7f49:8f8d
127.73.143.142 0:0:0:0:0:ffff:7f49:8f8e
127.73.143.143 0:0:0:0:0:ffff:7f49:8f8f
127.73.143.144 0:0:0:0:0:ffff:7f49:8f90
127.73.143.145 0:0:0:0:0:ffff:7f49:8f91
127.73.143.146 0:0:0:0:0:ffff:7f49:8f92
127.73.143.147 0:0:0:0:0:ffff:7f49:8f93
127.73.143.148 0:0:0:0:0:ffff:7f49:8f94
127.73.143.149 0:0:0:0:0:ffff:7f49:8f95
127.73.143.150 0:0:0:0:0:ffff:7f49:8f96
127.73.143.151 0:0:0:0:0:ffff:7f49:8f97
127.73.143.152 0:0:0:0:0:ffff:7f49:8f98
127.73.143.153 0:0:0:0:0:ffff:7f49:8f99
127.73.143.154 0:0:0:0:0:ffff:7f49:8f9a
127.73.143.155 0:0:0:0:0:ffff:7f49:8f9b
127.73.143.156 0:0:0:0:0:ffff:7f49:8f9c
127.73.143.157 0:0:0:0:0:ffff:7f49:8f9d
127.73.143.158 0:0:0:0:0:ffff:7f49:8f9e
127.73.143.159 0:0:0:0:0:ffff:7f49:8f9f
127.73.143.160 0:0:0:0:0:ffff:7f49:8fa0
127.73.143.161 0:0:0:0:0:ffff:7f49:8fa1
127.73.143.162 0:0:0:0:0:ffff:7f49:8fa2
127.73.143.163 0:0:0:0:0:ffff:7f49:8fa3
127.73.143.164 0:0:0:0:0:ffff:7f49:8fa4
127.73.143.165 0:0:0:0:0:ffff:7f49:8fa5
127.73.143.166 0:0:0:0:0:ffff:7f49:8fa6
127.73.143.167 0:0:0:0:0:ffff:7f49:8fa7
127.73.143.168 0:0:0:0:0:ffff:7f49:8fa8
127.73.143.169 0:0:0:0:0:ffff:7f49:8fa9
127.73.143.170 0:0:0:0:0:ffff:7f49:8faa
127.73.143.171 0:0:0:0:0:ffff:7f49:8fab
127.73.143.172 0:0:0:0:0:ffff:7f49:8fac
127.73.143.173 0:0:0:0:0:ffff:7f49:8fad
127.73.143.174 0:0:0:0:0:ffff:7f49:8fae
127.73.143.175 0:0:0:0:0:ffff:7f49:8faf
127.73.143.176 0:0:0:0:0:ffff:7f49:8fb0
127.73.143.177 0:0:0:0:0:ffff:7f49:8fb1
127.73.143.178 0:0:0:0:0:ffff:7f49:8fb2
127.73.143.179 0:0:0:0:0:ffff:7f49:8fb3
127.73.143.180 0:0:0:0:0:ffff:7f49:8fb4


127.73.143.181 0:0:0:0:0:ffff:7f49:8fb5
127.73.143.182 0:0:0:0:0:ffff:7f49:8fb6
127.73.143.183 0:0:0:0:0:ffff:7f49:8fb7
127.73.143.184 0:0:0:0:0:ffff:7f49:8fb8
127.73.143.185 0:0:0:0:0:ffff:7f49:8fb9
127.73.143.186 0:0:0:0:0:ffff:7f49:8fba
127.73.143.187 0:0:0:0:0:ffff:7f49:8fbb
127.73.143.188 0:0:0:0:0:ffff:7f49:8fbc
127.73.143.189 0:0:0:0:0:ffff:7f49:8fbd
127.73.143.190 0:0:0:0:0:ffff:7f49:8fbe
127.73.143.191 0:0:0:0:0:ffff:7f49:8fbf
127.73.143.192 0:0:0:0:0:ffff:7f49:8fc0
127.73.143.193 0:0:0:0:0:ffff:7f49:8fc1
127.73.143.194 0:0:0:0:0:ffff:7f49:8fc2
127.73.143.195 0:0:0:0:0:ffff:7f49:8fc3
127.73.143.196 0:0:0:0:0:ffff:7f49:8fc4
127.73.143.197 0:0:0:0:0:ffff:7f49:8fc5
127.73.143.198 0:0:0:0:0:ffff:7f49:8fc6
127.73.143.199 0:0:0:0:0:ffff:7f49:8fc7
127.73.143.200 0:0:0:0:0:ffff:7f49:8fc8
127.73.143.201 0:0:0:0:0:ffff:7f49:8fc9
127.73.143.202 0:0:0:0:0:ffff:7f49:8fca
127.73.143.203 0:0:0:0:0:ffff:7f49:8fcb
127.73.143.204 0:0:0:0:0:ffff:7f49:8fcc
127.73.143.205 0:0:0:0:0:ffff:7f49:8fcd
127.73.143.206 0:0:0:0:0:ffff:7f49:8fce
127.73.143.207 0:0:0:0:0:ffff:7f49:8fcf
127.73.143.208 0:0:0:0:0:ffff:7f49:8fd0
127.73.143.209 0:0:0:0:0:ffff:7f49:8fd1
127.73.143.210 0:0:0:0:0:ffff:7f49:8fd2
127.73.143.211 0:0:0:0:0:ffff:7f49:8fd3
127.73.143.212 0:0:0:0:0:ffff:7f49:8fd4
127.73.143.213 0:0:0:0:0:ffff:7f49:8fd5
127.73.143.214 0:0:0:0:0:ffff:7f49:8fd6
127.73.143.215 0:0:0:0:0:ffff:7f49:8fd7
127.73.143.216 0:0:0:0:0:ffff:7f49:8fd8
127.73.143.217 0:0:0:0:0:ffff:7f49:8fd9
127.73.143.218 0:0:0:0:0:ffff:7f49:8fda
127.73.143.219 0:0:0:0:0:ffff:7f49:8fdb
127.73.143.220 0:0:0:0:0:ffff:7f49:8fdc
127.73.143.221 0:0:0:0:0:ffff:7f49:8fdd
127.73.143.222 0:0:0:0:0:ffff:7f49:8fde
127.73.143.223 0:0:0:0:0:ffff:7f49:8fdf
127.73.143.224 0:0:0:0:0:ffff:7f49:8fe0
127.73.143.225 0:0:0:0:0:ffff:7f49:8fe1
127.73.143.226 0:0:0:0:0:ffff:7f49:8fe2
127.73.143.227 0:0:0:0:0:ffff:7f49:8fe3
127.73.143.228 0:0:0:0:0:ffff:7f49:8fe4
127.73.143.229 0:0:0:0:0:ffff:7f49:8fe5
127.73.143.230 0:0:0:0:0:ffff:7f49:8fe6
127.73.143.231 0:0:0:0:0:ffff:7f49:8fe7
127.73.143.232 0:0:0:0:0:ffff:7f49:8fe8
127.73.143.233 0:0:0:0:0:ffff:7f49:8fe9
127.73.143.234 0:0:0:0:0:ffff:7f49:8fea
127.73.143.235 0:0:0:0:0:ffff:7f49:8feb
127.73.143.236 0:0:0:0:0:ffff:7f49:8fec
127.73.143.237 0:0:0:0:0:ffff:7f49:8fed
127.73.143.238 0:0:0:0:0:ffff:7f49:8fee
127.73.143.239 0:0:0:0:0:ffff:7f49:8fef
127.73.143.240 0:0:0:0:0:ffff:7f49:8ff0
127.73.143.241 0:0:0:0:0:ffff:7f49:8ff1
127.73.143.242 0:0:0:0:0:ffff:7f49:8ff2
127.73.143.243 0:0:0:0:0:ffff:7f49:8ff3
127.73.143.244 0:0:0:0:0:ffff:7f49:8ff4
127.73.143.245 0:0:0:0:0:ffff:7f49:8ff5
127.73.143.246 0:0:0:0:0:ffff:7f49:8ff6
127.73.143.247 0:0:0:0:0:ffff:7f49:8ff7
127.73.143.248 0:0:0:0:0:ffff:7f49:8ff8
127.73.143.249 0:0:0:0:0:ffff:7f49:8ff9
127.73.143.250 0:0:0:0:0:ffff:7f49:8ffa
127.73.143.251 0:0:0:0:0:ffff:7f49:8ffb
127.73.143.252 0:0:0:0:0:ffff:7f49:8ffc
127.73.143.253 0:0:0:0:0:ffff:7f49:8ffd
127.73.143.254 0:0:0:0:0:ffff:7f49:8ffe
127.73.143.255 0:0:0:0:0:ffff:7f49:8fff


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.