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
66.43.15.1 0:0:0:0:0:ffff:422b:f01
66.43.15.2 0:0:0:0:0:ffff:422b:f02
66.43.15.3 0:0:0:0:0:ffff:422b:f03
66.43.15.4 0:0:0:0:0:ffff:422b:f04
66.43.15.5 0:0:0:0:0:ffff:422b:f05
66.43.15.6 0:0:0:0:0:ffff:422b:f06
66.43.15.7 0:0:0:0:0:ffff:422b:f07
66.43.15.8 0:0:0:0:0:ffff:422b:f08
66.43.15.9 0:0:0:0:0:ffff:422b:f09
66.43.15.10 0:0:0:0:0:ffff:422b:f0a
66.43.15.11 0:0:0:0:0:ffff:422b:f0b
66.43.15.12 0:0:0:0:0:ffff:422b:f0c
66.43.15.13 0:0:0:0:0:ffff:422b:f0d
66.43.15.14 0:0:0:0:0:ffff:422b:f0e
66.43.15.15 0:0:0:0:0:ffff:422b:f0f
66.43.15.16 0:0:0:0:0:ffff:422b:f10
66.43.15.17 0:0:0:0:0:ffff:422b:f11
66.43.15.18 0:0:0:0:0:ffff:422b:f12
66.43.15.19 0:0:0:0:0:ffff:422b:f13
66.43.15.20 0:0:0:0:0:ffff:422b:f14
66.43.15.21 0:0:0:0:0:ffff:422b:f15
66.43.15.22 0:0:0:0:0:ffff:422b:f16
66.43.15.23 0:0:0:0:0:ffff:422b:f17
66.43.15.24 0:0:0:0:0:ffff:422b:f18
66.43.15.25 0:0:0:0:0:ffff:422b:f19
66.43.15.26 0:0:0:0:0:ffff:422b:f1a
66.43.15.27 0:0:0:0:0:ffff:422b:f1b
66.43.15.28 0:0:0:0:0:ffff:422b:f1c
66.43.15.29 0:0:0:0:0:ffff:422b:f1d
66.43.15.30 0:0:0:0:0:ffff:422b:f1e
66.43.15.31 0:0:0:0:0:ffff:422b:f1f
66.43.15.32 0:0:0:0:0:ffff:422b:f20
66.43.15.33 0:0:0:0:0:ffff:422b:f21
66.43.15.34 0:0:0:0:0:ffff:422b:f22
66.43.15.35 0:0:0:0:0:ffff:422b:f23
66.43.15.36 0:0:0:0:0:ffff:422b:f24
66.43.15.37 0:0:0:0:0:ffff:422b:f25
66.43.15.38 0:0:0:0:0:ffff:422b:f26
66.43.15.39 0:0:0:0:0:ffff:422b:f27
66.43.15.40 0:0:0:0:0:ffff:422b:f28
66.43.15.41 0:0:0:0:0:ffff:422b:f29
66.43.15.42 0:0:0:0:0:ffff:422b:f2a
66.43.15.43 0:0:0:0:0:ffff:422b:f2b
66.43.15.44 0:0:0:0:0:ffff:422b:f2c
66.43.15.45 0:0:0:0:0:ffff:422b:f2d
66.43.15.46 0:0:0:0:0:ffff:422b:f2e
66.43.15.47 0:0:0:0:0:ffff:422b:f2f
66.43.15.48 0:0:0:0:0:ffff:422b:f30
66.43.15.49 0:0:0:0:0:ffff:422b:f31
66.43.15.50 0:0:0:0:0:ffff:422b:f32
66.43.15.51 0:0:0:0:0:ffff:422b:f33
66.43.15.52 0:0:0:0:0:ffff:422b:f34
66.43.15.53 0:0:0:0:0:ffff:422b:f35
66.43.15.54 0:0:0:0:0:ffff:422b:f36
66.43.15.55 0:0:0:0:0:ffff:422b:f37
66.43.15.56 0:0:0:0:0:ffff:422b:f38
66.43.15.57 0:0:0:0:0:ffff:422b:f39
66.43.15.58 0:0:0:0:0:ffff:422b:f3a
66.43.15.59 0:0:0:0:0:ffff:422b:f3b
66.43.15.60 0:0:0:0:0:ffff:422b:f3c


66.43.15.61 0:0:0:0:0:ffff:422b:f3d
66.43.15.62 0:0:0:0:0:ffff:422b:f3e
66.43.15.63 0:0:0:0:0:ffff:422b:f3f
66.43.15.64 0:0:0:0:0:ffff:422b:f40
66.43.15.65 0:0:0:0:0:ffff:422b:f41
66.43.15.66 0:0:0:0:0:ffff:422b:f42
66.43.15.67 0:0:0:0:0:ffff:422b:f43
66.43.15.68 0:0:0:0:0:ffff:422b:f44
66.43.15.69 0:0:0:0:0:ffff:422b:f45
66.43.15.70 0:0:0:0:0:ffff:422b:f46
66.43.15.71 0:0:0:0:0:ffff:422b:f47
66.43.15.72 0:0:0:0:0:ffff:422b:f48
66.43.15.73 0:0:0:0:0:ffff:422b:f49
66.43.15.74 0:0:0:0:0:ffff:422b:f4a
66.43.15.75 0:0:0:0:0:ffff:422b:f4b
66.43.15.76 0:0:0:0:0:ffff:422b:f4c
66.43.15.77 0:0:0:0:0:ffff:422b:f4d
66.43.15.78 0:0:0:0:0:ffff:422b:f4e
66.43.15.79 0:0:0:0:0:ffff:422b:f4f
66.43.15.80 0:0:0:0:0:ffff:422b:f50
66.43.15.81 0:0:0:0:0:ffff:422b:f51
66.43.15.82 0:0:0:0:0:ffff:422b:f52
66.43.15.83 0:0:0:0:0:ffff:422b:f53
66.43.15.84 0:0:0:0:0:ffff:422b:f54
66.43.15.85 0:0:0:0:0:ffff:422b:f55
66.43.15.86 0:0:0:0:0:ffff:422b:f56
66.43.15.87 0:0:0:0:0:ffff:422b:f57
66.43.15.88 0:0:0:0:0:ffff:422b:f58
66.43.15.89 0:0:0:0:0:ffff:422b:f59
66.43.15.90 0:0:0:0:0:ffff:422b:f5a
66.43.15.91 0:0:0:0:0:ffff:422b:f5b
66.43.15.92 0:0:0:0:0:ffff:422b:f5c
66.43.15.93 0:0:0:0:0:ffff:422b:f5d
66.43.15.94 0:0:0:0:0:ffff:422b:f5e
66.43.15.95 0:0:0:0:0:ffff:422b:f5f
66.43.15.96 0:0:0:0:0:ffff:422b:f60
66.43.15.97 0:0:0:0:0:ffff:422b:f61
66.43.15.98 0:0:0:0:0:ffff:422b:f62
66.43.15.99 0:0:0:0:0:ffff:422b:f63
66.43.15.100 0:0:0:0:0:ffff:422b:f64
66.43.15.101 0:0:0:0:0:ffff:422b:f65
66.43.15.102 0:0:0:0:0:ffff:422b:f66
66.43.15.103 0:0:0:0:0:ffff:422b:f67
66.43.15.104 0:0:0:0:0:ffff:422b:f68
66.43.15.105 0:0:0:0:0:ffff:422b:f69
66.43.15.106 0:0:0:0:0:ffff:422b:f6a
66.43.15.107 0:0:0:0:0:ffff:422b:f6b
66.43.15.108 0:0:0:0:0:ffff:422b:f6c
66.43.15.109 0:0:0:0:0:ffff:422b:f6d
66.43.15.110 0:0:0:0:0:ffff:422b:f6e
66.43.15.111 0:0:0:0:0:ffff:422b:f6f
66.43.15.112 0:0:0:0:0:ffff:422b:f70
66.43.15.113 0:0:0:0:0:ffff:422b:f71
66.43.15.114 0:0:0:0:0:ffff:422b:f72
66.43.15.115 0:0:0:0:0:ffff:422b:f73
66.43.15.116 0:0:0:0:0:ffff:422b:f74
66.43.15.117 0:0:0:0:0:ffff:422b:f75
66.43.15.118 0:0:0:0:0:ffff:422b:f76
66.43.15.119 0:0:0:0:0:ffff:422b:f77
66.43.15.120 0:0:0:0:0:ffff:422b:f78


66.43.15.121 0:0:0:0:0:ffff:422b:f79
66.43.15.122 0:0:0:0:0:ffff:422b:f7a
66.43.15.123 0:0:0:0:0:ffff:422b:f7b
66.43.15.124 0:0:0:0:0:ffff:422b:f7c
66.43.15.125 0:0:0:0:0:ffff:422b:f7d
66.43.15.126 0:0:0:0:0:ffff:422b:f7e
66.43.15.127 0:0:0:0:0:ffff:422b:f7f
66.43.15.128 0:0:0:0:0:ffff:422b:f80
66.43.15.129 0:0:0:0:0:ffff:422b:f81
66.43.15.130 0:0:0:0:0:ffff:422b:f82
66.43.15.131 0:0:0:0:0:ffff:422b:f83
66.43.15.132 0:0:0:0:0:ffff:422b:f84
66.43.15.133 0:0:0:0:0:ffff:422b:f85
66.43.15.134 0:0:0:0:0:ffff:422b:f86
66.43.15.135 0:0:0:0:0:ffff:422b:f87
66.43.15.136 0:0:0:0:0:ffff:422b:f88
66.43.15.137 0:0:0:0:0:ffff:422b:f89
66.43.15.138 0:0:0:0:0:ffff:422b:f8a
66.43.15.139 0:0:0:0:0:ffff:422b:f8b
66.43.15.140 0:0:0:0:0:ffff:422b:f8c
66.43.15.141 0:0:0:0:0:ffff:422b:f8d
66.43.15.142 0:0:0:0:0:ffff:422b:f8e
66.43.15.143 0:0:0:0:0:ffff:422b:f8f
66.43.15.144 0:0:0:0:0:ffff:422b:f90
66.43.15.145 0:0:0:0:0:ffff:422b:f91
66.43.15.146 0:0:0:0:0:ffff:422b:f92
66.43.15.147 0:0:0:0:0:ffff:422b:f93
66.43.15.148 0:0:0:0:0:ffff:422b:f94
66.43.15.149 0:0:0:0:0:ffff:422b:f95
66.43.15.150 0:0:0:0:0:ffff:422b:f96
66.43.15.151 0:0:0:0:0:ffff:422b:f97
66.43.15.152 0:0:0:0:0:ffff:422b:f98
66.43.15.153 0:0:0:0:0:ffff:422b:f99
66.43.15.154 0:0:0:0:0:ffff:422b:f9a
66.43.15.155 0:0:0:0:0:ffff:422b:f9b
66.43.15.156 0:0:0:0:0:ffff:422b:f9c
66.43.15.157 0:0:0:0:0:ffff:422b:f9d
66.43.15.158 0:0:0:0:0:ffff:422b:f9e
66.43.15.159 0:0:0:0:0:ffff:422b:f9f
66.43.15.160 0:0:0:0:0:ffff:422b:fa0
66.43.15.161 0:0:0:0:0:ffff:422b:fa1
66.43.15.162 0:0:0:0:0:ffff:422b:fa2
66.43.15.163 0:0:0:0:0:ffff:422b:fa3
66.43.15.164 0:0:0:0:0:ffff:422b:fa4
66.43.15.165 0:0:0:0:0:ffff:422b:fa5
66.43.15.166 0:0:0:0:0:ffff:422b:fa6
66.43.15.167 0:0:0:0:0:ffff:422b:fa7
66.43.15.168 0:0:0:0:0:ffff:422b:fa8
66.43.15.169 0:0:0:0:0:ffff:422b:fa9
66.43.15.170 0:0:0:0:0:ffff:422b:faa
66.43.15.171 0:0:0:0:0:ffff:422b:fab
66.43.15.172 0:0:0:0:0:ffff:422b:fac
66.43.15.173 0:0:0:0:0:ffff:422b:fad
66.43.15.174 0:0:0:0:0:ffff:422b:fae
66.43.15.175 0:0:0:0:0:ffff:422b:faf
66.43.15.176 0:0:0:0:0:ffff:422b:fb0
66.43.15.177 0:0:0:0:0:ffff:422b:fb1
66.43.15.178 0:0:0:0:0:ffff:422b:fb2
66.43.15.179 0:0:0:0:0:ffff:422b:fb3
66.43.15.180 0:0:0:0:0:ffff:422b:fb4


66.43.15.181 0:0:0:0:0:ffff:422b:fb5
66.43.15.182 0:0:0:0:0:ffff:422b:fb6
66.43.15.183 0:0:0:0:0:ffff:422b:fb7
66.43.15.184 0:0:0:0:0:ffff:422b:fb8
66.43.15.185 0:0:0:0:0:ffff:422b:fb9
66.43.15.186 0:0:0:0:0:ffff:422b:fba
66.43.15.187 0:0:0:0:0:ffff:422b:fbb
66.43.15.188 0:0:0:0:0:ffff:422b:fbc
66.43.15.189 0:0:0:0:0:ffff:422b:fbd
66.43.15.190 0:0:0:0:0:ffff:422b:fbe
66.43.15.191 0:0:0:0:0:ffff:422b:fbf
66.43.15.192 0:0:0:0:0:ffff:422b:fc0
66.43.15.193 0:0:0:0:0:ffff:422b:fc1
66.43.15.194 0:0:0:0:0:ffff:422b:fc2
66.43.15.195 0:0:0:0:0:ffff:422b:fc3
66.43.15.196 0:0:0:0:0:ffff:422b:fc4
66.43.15.197 0:0:0:0:0:ffff:422b:fc5
66.43.15.198 0:0:0:0:0:ffff:422b:fc6
66.43.15.199 0:0:0:0:0:ffff:422b:fc7
66.43.15.200 0:0:0:0:0:ffff:422b:fc8
66.43.15.201 0:0:0:0:0:ffff:422b:fc9
66.43.15.202 0:0:0:0:0:ffff:422b:fca
66.43.15.203 0:0:0:0:0:ffff:422b:fcb
66.43.15.204 0:0:0:0:0:ffff:422b:fcc
66.43.15.205 0:0:0:0:0:ffff:422b:fcd
66.43.15.206 0:0:0:0:0:ffff:422b:fce
66.43.15.207 0:0:0:0:0:ffff:422b:fcf
66.43.15.208 0:0:0:0:0:ffff:422b:fd0
66.43.15.209 0:0:0:0:0:ffff:422b:fd1
66.43.15.210 0:0:0:0:0:ffff:422b:fd2
66.43.15.211 0:0:0:0:0:ffff:422b:fd3
66.43.15.212 0:0:0:0:0:ffff:422b:fd4
66.43.15.213 0:0:0:0:0:ffff:422b:fd5
66.43.15.214 0:0:0:0:0:ffff:422b:fd6
66.43.15.215 0:0:0:0:0:ffff:422b:fd7
66.43.15.216 0:0:0:0:0:ffff:422b:fd8
66.43.15.217 0:0:0:0:0:ffff:422b:fd9
66.43.15.218 0:0:0:0:0:ffff:422b:fda
66.43.15.219 0:0:0:0:0:ffff:422b:fdb
66.43.15.220 0:0:0:0:0:ffff:422b:fdc
66.43.15.221 0:0:0:0:0:ffff:422b:fdd
66.43.15.222 0:0:0:0:0:ffff:422b:fde
66.43.15.223 0:0:0:0:0:ffff:422b:fdf
66.43.15.224 0:0:0:0:0:ffff:422b:fe0
66.43.15.225 0:0:0:0:0:ffff:422b:fe1
66.43.15.226 0:0:0:0:0:ffff:422b:fe2
66.43.15.227 0:0:0:0:0:ffff:422b:fe3
66.43.15.228 0:0:0:0:0:ffff:422b:fe4
66.43.15.229 0:0:0:0:0:ffff:422b:fe5
66.43.15.230 0:0:0:0:0:ffff:422b:fe6
66.43.15.231 0:0:0:0:0:ffff:422b:fe7
66.43.15.232 0:0:0:0:0:ffff:422b:fe8
66.43.15.233 0:0:0:0:0:ffff:422b:fe9
66.43.15.234 0:0:0:0:0:ffff:422b:fea
66.43.15.235 0:0:0:0:0:ffff:422b:feb
66.43.15.236 0:0:0:0:0:ffff:422b:fec
66.43.15.237 0:0:0:0:0:ffff:422b:fed
66.43.15.238 0:0:0:0:0:ffff:422b:fee
66.43.15.239 0:0:0:0:0:ffff:422b:fef
66.43.15.240 0:0:0:0:0:ffff:422b:ff0
66.43.15.241 0:0:0:0:0:ffff:422b:ff1
66.43.15.242 0:0:0:0:0:ffff:422b:ff2
66.43.15.243 0:0:0:0:0:ffff:422b:ff3
66.43.15.244 0:0:0:0:0:ffff:422b:ff4
66.43.15.245 0:0:0:0:0:ffff:422b:ff5
66.43.15.246 0:0:0:0:0:ffff:422b:ff6
66.43.15.247 0:0:0:0:0:ffff:422b:ff7
66.43.15.248 0:0:0:0:0:ffff:422b:ff8
66.43.15.249 0:0:0:0:0:ffff:422b:ff9
66.43.15.250 0:0:0:0:0:ffff:422b:ffa
66.43.15.251 0:0:0:0:0:ffff:422b:ffb
66.43.15.252 0:0:0:0:0:ffff:422b:ffc
66.43.15.253 0:0:0:0:0:ffff:422b:ffd
66.43.15.254 0:0:0:0:0:ffff:422b:ffe
66.43.15.255 0:0:0:0:0:ffff:422b:fff


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.