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
205.38.15.1 0:0:0:0:0:ffff:cd26:f01
205.38.15.2 0:0:0:0:0:ffff:cd26:f02
205.38.15.3 0:0:0:0:0:ffff:cd26:f03
205.38.15.4 0:0:0:0:0:ffff:cd26:f04
205.38.15.5 0:0:0:0:0:ffff:cd26:f05
205.38.15.6 0:0:0:0:0:ffff:cd26:f06
205.38.15.7 0:0:0:0:0:ffff:cd26:f07
205.38.15.8 0:0:0:0:0:ffff:cd26:f08
205.38.15.9 0:0:0:0:0:ffff:cd26:f09
205.38.15.10 0:0:0:0:0:ffff:cd26:f0a
205.38.15.11 0:0:0:0:0:ffff:cd26:f0b
205.38.15.12 0:0:0:0:0:ffff:cd26:f0c
205.38.15.13 0:0:0:0:0:ffff:cd26:f0d
205.38.15.14 0:0:0:0:0:ffff:cd26:f0e
205.38.15.15 0:0:0:0:0:ffff:cd26:f0f
205.38.15.16 0:0:0:0:0:ffff:cd26:f10
205.38.15.17 0:0:0:0:0:ffff:cd26:f11
205.38.15.18 0:0:0:0:0:ffff:cd26:f12
205.38.15.19 0:0:0:0:0:ffff:cd26:f13
205.38.15.20 0:0:0:0:0:ffff:cd26:f14
205.38.15.21 0:0:0:0:0:ffff:cd26:f15
205.38.15.22 0:0:0:0:0:ffff:cd26:f16
205.38.15.23 0:0:0:0:0:ffff:cd26:f17
205.38.15.24 0:0:0:0:0:ffff:cd26:f18
205.38.15.25 0:0:0:0:0:ffff:cd26:f19
205.38.15.26 0:0:0:0:0:ffff:cd26:f1a
205.38.15.27 0:0:0:0:0:ffff:cd26:f1b
205.38.15.28 0:0:0:0:0:ffff:cd26:f1c
205.38.15.29 0:0:0:0:0:ffff:cd26:f1d
205.38.15.30 0:0:0:0:0:ffff:cd26:f1e
205.38.15.31 0:0:0:0:0:ffff:cd26:f1f
205.38.15.32 0:0:0:0:0:ffff:cd26:f20
205.38.15.33 0:0:0:0:0:ffff:cd26:f21
205.38.15.34 0:0:0:0:0:ffff:cd26:f22
205.38.15.35 0:0:0:0:0:ffff:cd26:f23
205.38.15.36 0:0:0:0:0:ffff:cd26:f24
205.38.15.37 0:0:0:0:0:ffff:cd26:f25
205.38.15.38 0:0:0:0:0:ffff:cd26:f26
205.38.15.39 0:0:0:0:0:ffff:cd26:f27
205.38.15.40 0:0:0:0:0:ffff:cd26:f28
205.38.15.41 0:0:0:0:0:ffff:cd26:f29
205.38.15.42 0:0:0:0:0:ffff:cd26:f2a
205.38.15.43 0:0:0:0:0:ffff:cd26:f2b
205.38.15.44 0:0:0:0:0:ffff:cd26:f2c
205.38.15.45 0:0:0:0:0:ffff:cd26:f2d
205.38.15.46 0:0:0:0:0:ffff:cd26:f2e
205.38.15.47 0:0:0:0:0:ffff:cd26:f2f
205.38.15.48 0:0:0:0:0:ffff:cd26:f30
205.38.15.49 0:0:0:0:0:ffff:cd26:f31
205.38.15.50 0:0:0:0:0:ffff:cd26:f32
205.38.15.51 0:0:0:0:0:ffff:cd26:f33
205.38.15.52 0:0:0:0:0:ffff:cd26:f34
205.38.15.53 0:0:0:0:0:ffff:cd26:f35
205.38.15.54 0:0:0:0:0:ffff:cd26:f36
205.38.15.55 0:0:0:0:0:ffff:cd26:f37
205.38.15.56 0:0:0:0:0:ffff:cd26:f38
205.38.15.57 0:0:0:0:0:ffff:cd26:f39
205.38.15.58 0:0:0:0:0:ffff:cd26:f3a
205.38.15.59 0:0:0:0:0:ffff:cd26:f3b
205.38.15.60 0:0:0:0:0:ffff:cd26:f3c


205.38.15.61 0:0:0:0:0:ffff:cd26:f3d
205.38.15.62 0:0:0:0:0:ffff:cd26:f3e
205.38.15.63 0:0:0:0:0:ffff:cd26:f3f
205.38.15.64 0:0:0:0:0:ffff:cd26:f40
205.38.15.65 0:0:0:0:0:ffff:cd26:f41
205.38.15.66 0:0:0:0:0:ffff:cd26:f42
205.38.15.67 0:0:0:0:0:ffff:cd26:f43
205.38.15.68 0:0:0:0:0:ffff:cd26:f44
205.38.15.69 0:0:0:0:0:ffff:cd26:f45
205.38.15.70 0:0:0:0:0:ffff:cd26:f46
205.38.15.71 0:0:0:0:0:ffff:cd26:f47
205.38.15.72 0:0:0:0:0:ffff:cd26:f48
205.38.15.73 0:0:0:0:0:ffff:cd26:f49
205.38.15.74 0:0:0:0:0:ffff:cd26:f4a
205.38.15.75 0:0:0:0:0:ffff:cd26:f4b
205.38.15.76 0:0:0:0:0:ffff:cd26:f4c
205.38.15.77 0:0:0:0:0:ffff:cd26:f4d
205.38.15.78 0:0:0:0:0:ffff:cd26:f4e
205.38.15.79 0:0:0:0:0:ffff:cd26:f4f
205.38.15.80 0:0:0:0:0:ffff:cd26:f50
205.38.15.81 0:0:0:0:0:ffff:cd26:f51
205.38.15.82 0:0:0:0:0:ffff:cd26:f52
205.38.15.83 0:0:0:0:0:ffff:cd26:f53
205.38.15.84 0:0:0:0:0:ffff:cd26:f54
205.38.15.85 0:0:0:0:0:ffff:cd26:f55
205.38.15.86 0:0:0:0:0:ffff:cd26:f56
205.38.15.87 0:0:0:0:0:ffff:cd26:f57
205.38.15.88 0:0:0:0:0:ffff:cd26:f58
205.38.15.89 0:0:0:0:0:ffff:cd26:f59
205.38.15.90 0:0:0:0:0:ffff:cd26:f5a
205.38.15.91 0:0:0:0:0:ffff:cd26:f5b
205.38.15.92 0:0:0:0:0:ffff:cd26:f5c
205.38.15.93 0:0:0:0:0:ffff:cd26:f5d
205.38.15.94 0:0:0:0:0:ffff:cd26:f5e
205.38.15.95 0:0:0:0:0:ffff:cd26:f5f
205.38.15.96 0:0:0:0:0:ffff:cd26:f60
205.38.15.97 0:0:0:0:0:ffff:cd26:f61
205.38.15.98 0:0:0:0:0:ffff:cd26:f62
205.38.15.99 0:0:0:0:0:ffff:cd26:f63
205.38.15.100 0:0:0:0:0:ffff:cd26:f64
205.38.15.101 0:0:0:0:0:ffff:cd26:f65
205.38.15.102 0:0:0:0:0:ffff:cd26:f66
205.38.15.103 0:0:0:0:0:ffff:cd26:f67
205.38.15.104 0:0:0:0:0:ffff:cd26:f68
205.38.15.105 0:0:0:0:0:ffff:cd26:f69
205.38.15.106 0:0:0:0:0:ffff:cd26:f6a
205.38.15.107 0:0:0:0:0:ffff:cd26:f6b
205.38.15.108 0:0:0:0:0:ffff:cd26:f6c
205.38.15.109 0:0:0:0:0:ffff:cd26:f6d
205.38.15.110 0:0:0:0:0:ffff:cd26:f6e
205.38.15.111 0:0:0:0:0:ffff:cd26:f6f
205.38.15.112 0:0:0:0:0:ffff:cd26:f70
205.38.15.113 0:0:0:0:0:ffff:cd26:f71
205.38.15.114 0:0:0:0:0:ffff:cd26:f72
205.38.15.115 0:0:0:0:0:ffff:cd26:f73
205.38.15.116 0:0:0:0:0:ffff:cd26:f74
205.38.15.117 0:0:0:0:0:ffff:cd26:f75
205.38.15.118 0:0:0:0:0:ffff:cd26:f76
205.38.15.119 0:0:0:0:0:ffff:cd26:f77
205.38.15.120 0:0:0:0:0:ffff:cd26:f78


205.38.15.121 0:0:0:0:0:ffff:cd26:f79
205.38.15.122 0:0:0:0:0:ffff:cd26:f7a
205.38.15.123 0:0:0:0:0:ffff:cd26:f7b
205.38.15.124 0:0:0:0:0:ffff:cd26:f7c
205.38.15.125 0:0:0:0:0:ffff:cd26:f7d
205.38.15.126 0:0:0:0:0:ffff:cd26:f7e
205.38.15.127 0:0:0:0:0:ffff:cd26:f7f
205.38.15.128 0:0:0:0:0:ffff:cd26:f80
205.38.15.129 0:0:0:0:0:ffff:cd26:f81
205.38.15.130 0:0:0:0:0:ffff:cd26:f82
205.38.15.131 0:0:0:0:0:ffff:cd26:f83
205.38.15.132 0:0:0:0:0:ffff:cd26:f84
205.38.15.133 0:0:0:0:0:ffff:cd26:f85
205.38.15.134 0:0:0:0:0:ffff:cd26:f86
205.38.15.135 0:0:0:0:0:ffff:cd26:f87
205.38.15.136 0:0:0:0:0:ffff:cd26:f88
205.38.15.137 0:0:0:0:0:ffff:cd26:f89
205.38.15.138 0:0:0:0:0:ffff:cd26:f8a
205.38.15.139 0:0:0:0:0:ffff:cd26:f8b
205.38.15.140 0:0:0:0:0:ffff:cd26:f8c
205.38.15.141 0:0:0:0:0:ffff:cd26:f8d
205.38.15.142 0:0:0:0:0:ffff:cd26:f8e
205.38.15.143 0:0:0:0:0:ffff:cd26:f8f
205.38.15.144 0:0:0:0:0:ffff:cd26:f90
205.38.15.145 0:0:0:0:0:ffff:cd26:f91
205.38.15.146 0:0:0:0:0:ffff:cd26:f92
205.38.15.147 0:0:0:0:0:ffff:cd26:f93
205.38.15.148 0:0:0:0:0:ffff:cd26:f94
205.38.15.149 0:0:0:0:0:ffff:cd26:f95
205.38.15.150 0:0:0:0:0:ffff:cd26:f96
205.38.15.151 0:0:0:0:0:ffff:cd26:f97
205.38.15.152 0:0:0:0:0:ffff:cd26:f98
205.38.15.153 0:0:0:0:0:ffff:cd26:f99
205.38.15.154 0:0:0:0:0:ffff:cd26:f9a
205.38.15.155 0:0:0:0:0:ffff:cd26:f9b
205.38.15.156 0:0:0:0:0:ffff:cd26:f9c
205.38.15.157 0:0:0:0:0:ffff:cd26:f9d
205.38.15.158 0:0:0:0:0:ffff:cd26:f9e
205.38.15.159 0:0:0:0:0:ffff:cd26:f9f
205.38.15.160 0:0:0:0:0:ffff:cd26:fa0
205.38.15.161 0:0:0:0:0:ffff:cd26:fa1
205.38.15.162 0:0:0:0:0:ffff:cd26:fa2
205.38.15.163 0:0:0:0:0:ffff:cd26:fa3
205.38.15.164 0:0:0:0:0:ffff:cd26:fa4
205.38.15.165 0:0:0:0:0:ffff:cd26:fa5
205.38.15.166 0:0:0:0:0:ffff:cd26:fa6
205.38.15.167 0:0:0:0:0:ffff:cd26:fa7
205.38.15.168 0:0:0:0:0:ffff:cd26:fa8
205.38.15.169 0:0:0:0:0:ffff:cd26:fa9
205.38.15.170 0:0:0:0:0:ffff:cd26:faa
205.38.15.171 0:0:0:0:0:ffff:cd26:fab
205.38.15.172 0:0:0:0:0:ffff:cd26:fac
205.38.15.173 0:0:0:0:0:ffff:cd26:fad
205.38.15.174 0:0:0:0:0:ffff:cd26:fae
205.38.15.175 0:0:0:0:0:ffff:cd26:faf
205.38.15.176 0:0:0:0:0:ffff:cd26:fb0
205.38.15.177 0:0:0:0:0:ffff:cd26:fb1
205.38.15.178 0:0:0:0:0:ffff:cd26:fb2
205.38.15.179 0:0:0:0:0:ffff:cd26:fb3
205.38.15.180 0:0:0:0:0:ffff:cd26:fb4


205.38.15.181 0:0:0:0:0:ffff:cd26:fb5
205.38.15.182 0:0:0:0:0:ffff:cd26:fb6
205.38.15.183 0:0:0:0:0:ffff:cd26:fb7
205.38.15.184 0:0:0:0:0:ffff:cd26:fb8
205.38.15.185 0:0:0:0:0:ffff:cd26:fb9
205.38.15.186 0:0:0:0:0:ffff:cd26:fba
205.38.15.187 0:0:0:0:0:ffff:cd26:fbb
205.38.15.188 0:0:0:0:0:ffff:cd26:fbc
205.38.15.189 0:0:0:0:0:ffff:cd26:fbd
205.38.15.190 0:0:0:0:0:ffff:cd26:fbe
205.38.15.191 0:0:0:0:0:ffff:cd26:fbf
205.38.15.192 0:0:0:0:0:ffff:cd26:fc0
205.38.15.193 0:0:0:0:0:ffff:cd26:fc1
205.38.15.194 0:0:0:0:0:ffff:cd26:fc2
205.38.15.195 0:0:0:0:0:ffff:cd26:fc3
205.38.15.196 0:0:0:0:0:ffff:cd26:fc4
205.38.15.197 0:0:0:0:0:ffff:cd26:fc5
205.38.15.198 0:0:0:0:0:ffff:cd26:fc6
205.38.15.199 0:0:0:0:0:ffff:cd26:fc7
205.38.15.200 0:0:0:0:0:ffff:cd26:fc8
205.38.15.201 0:0:0:0:0:ffff:cd26:fc9
205.38.15.202 0:0:0:0:0:ffff:cd26:fca
205.38.15.203 0:0:0:0:0:ffff:cd26:fcb
205.38.15.204 0:0:0:0:0:ffff:cd26:fcc
205.38.15.205 0:0:0:0:0:ffff:cd26:fcd
205.38.15.206 0:0:0:0:0:ffff:cd26:fce
205.38.15.207 0:0:0:0:0:ffff:cd26:fcf
205.38.15.208 0:0:0:0:0:ffff:cd26:fd0
205.38.15.209 0:0:0:0:0:ffff:cd26:fd1
205.38.15.210 0:0:0:0:0:ffff:cd26:fd2
205.38.15.211 0:0:0:0:0:ffff:cd26:fd3
205.38.15.212 0:0:0:0:0:ffff:cd26:fd4
205.38.15.213 0:0:0:0:0:ffff:cd26:fd5
205.38.15.214 0:0:0:0:0:ffff:cd26:fd6
205.38.15.215 0:0:0:0:0:ffff:cd26:fd7
205.38.15.216 0:0:0:0:0:ffff:cd26:fd8
205.38.15.217 0:0:0:0:0:ffff:cd26:fd9
205.38.15.218 0:0:0:0:0:ffff:cd26:fda
205.38.15.219 0:0:0:0:0:ffff:cd26:fdb
205.38.15.220 0:0:0:0:0:ffff:cd26:fdc
205.38.15.221 0:0:0:0:0:ffff:cd26:fdd
205.38.15.222 0:0:0:0:0:ffff:cd26:fde
205.38.15.223 0:0:0:0:0:ffff:cd26:fdf
205.38.15.224 0:0:0:0:0:ffff:cd26:fe0
205.38.15.225 0:0:0:0:0:ffff:cd26:fe1
205.38.15.226 0:0:0:0:0:ffff:cd26:fe2
205.38.15.227 0:0:0:0:0:ffff:cd26:fe3
205.38.15.228 0:0:0:0:0:ffff:cd26:fe4
205.38.15.229 0:0:0:0:0:ffff:cd26:fe5
205.38.15.230 0:0:0:0:0:ffff:cd26:fe6
205.38.15.231 0:0:0:0:0:ffff:cd26:fe7
205.38.15.232 0:0:0:0:0:ffff:cd26:fe8
205.38.15.233 0:0:0:0:0:ffff:cd26:fe9
205.38.15.234 0:0:0:0:0:ffff:cd26:fea
205.38.15.235 0:0:0:0:0:ffff:cd26:feb
205.38.15.236 0:0:0:0:0:ffff:cd26:fec
205.38.15.237 0:0:0:0:0:ffff:cd26:fed
205.38.15.238 0:0:0:0:0:ffff:cd26:fee
205.38.15.239 0:0:0:0:0:ffff:cd26:fef
205.38.15.240 0:0:0:0:0:ffff:cd26:ff0
205.38.15.241 0:0:0:0:0:ffff:cd26:ff1
205.38.15.242 0:0:0:0:0:ffff:cd26:ff2
205.38.15.243 0:0:0:0:0:ffff:cd26:ff3
205.38.15.244 0:0:0:0:0:ffff:cd26:ff4
205.38.15.245 0:0:0:0:0:ffff:cd26:ff5
205.38.15.246 0:0:0:0:0:ffff:cd26:ff6
205.38.15.247 0:0:0:0:0:ffff:cd26:ff7
205.38.15.248 0:0:0:0:0:ffff:cd26:ff8
205.38.15.249 0:0:0:0:0:ffff:cd26:ff9
205.38.15.250 0:0:0:0:0:ffff:cd26:ffa
205.38.15.251 0:0:0:0:0:ffff:cd26:ffb
205.38.15.252 0:0:0:0:0:ffff:cd26:ffc
205.38.15.253 0:0:0:0:0:ffff:cd26:ffd
205.38.15.254 0:0:0:0:0:ffff:cd26:ffe
205.38.15.255 0:0:0:0:0:ffff:cd26: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.