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
151.172.30.1 0:0:0:0:0:ffff:97ac:1e01
151.172.30.2 0:0:0:0:0:ffff:97ac:1e02
151.172.30.3 0:0:0:0:0:ffff:97ac:1e03
151.172.30.4 0:0:0:0:0:ffff:97ac:1e04
151.172.30.5 0:0:0:0:0:ffff:97ac:1e05
151.172.30.6 0:0:0:0:0:ffff:97ac:1e06
151.172.30.7 0:0:0:0:0:ffff:97ac:1e07
151.172.30.8 0:0:0:0:0:ffff:97ac:1e08
151.172.30.9 0:0:0:0:0:ffff:97ac:1e09
151.172.30.10 0:0:0:0:0:ffff:97ac:1e0a
151.172.30.11 0:0:0:0:0:ffff:97ac:1e0b
151.172.30.12 0:0:0:0:0:ffff:97ac:1e0c
151.172.30.13 0:0:0:0:0:ffff:97ac:1e0d
151.172.30.14 0:0:0:0:0:ffff:97ac:1e0e
151.172.30.15 0:0:0:0:0:ffff:97ac:1e0f
151.172.30.16 0:0:0:0:0:ffff:97ac:1e10
151.172.30.17 0:0:0:0:0:ffff:97ac:1e11
151.172.30.18 0:0:0:0:0:ffff:97ac:1e12
151.172.30.19 0:0:0:0:0:ffff:97ac:1e13
151.172.30.20 0:0:0:0:0:ffff:97ac:1e14
151.172.30.21 0:0:0:0:0:ffff:97ac:1e15
151.172.30.22 0:0:0:0:0:ffff:97ac:1e16
151.172.30.23 0:0:0:0:0:ffff:97ac:1e17
151.172.30.24 0:0:0:0:0:ffff:97ac:1e18
151.172.30.25 0:0:0:0:0:ffff:97ac:1e19
151.172.30.26 0:0:0:0:0:ffff:97ac:1e1a
151.172.30.27 0:0:0:0:0:ffff:97ac:1e1b
151.172.30.28 0:0:0:0:0:ffff:97ac:1e1c
151.172.30.29 0:0:0:0:0:ffff:97ac:1e1d
151.172.30.30 0:0:0:0:0:ffff:97ac:1e1e
151.172.30.31 0:0:0:0:0:ffff:97ac:1e1f
151.172.30.32 0:0:0:0:0:ffff:97ac:1e20
151.172.30.33 0:0:0:0:0:ffff:97ac:1e21
151.172.30.34 0:0:0:0:0:ffff:97ac:1e22
151.172.30.35 0:0:0:0:0:ffff:97ac:1e23
151.172.30.36 0:0:0:0:0:ffff:97ac:1e24
151.172.30.37 0:0:0:0:0:ffff:97ac:1e25
151.172.30.38 0:0:0:0:0:ffff:97ac:1e26
151.172.30.39 0:0:0:0:0:ffff:97ac:1e27
151.172.30.40 0:0:0:0:0:ffff:97ac:1e28
151.172.30.41 0:0:0:0:0:ffff:97ac:1e29
151.172.30.42 0:0:0:0:0:ffff:97ac:1e2a
151.172.30.43 0:0:0:0:0:ffff:97ac:1e2b
151.172.30.44 0:0:0:0:0:ffff:97ac:1e2c
151.172.30.45 0:0:0:0:0:ffff:97ac:1e2d
151.172.30.46 0:0:0:0:0:ffff:97ac:1e2e
151.172.30.47 0:0:0:0:0:ffff:97ac:1e2f
151.172.30.48 0:0:0:0:0:ffff:97ac:1e30
151.172.30.49 0:0:0:0:0:ffff:97ac:1e31
151.172.30.50 0:0:0:0:0:ffff:97ac:1e32
151.172.30.51 0:0:0:0:0:ffff:97ac:1e33
151.172.30.52 0:0:0:0:0:ffff:97ac:1e34
151.172.30.53 0:0:0:0:0:ffff:97ac:1e35
151.172.30.54 0:0:0:0:0:ffff:97ac:1e36
151.172.30.55 0:0:0:0:0:ffff:97ac:1e37
151.172.30.56 0:0:0:0:0:ffff:97ac:1e38
151.172.30.57 0:0:0:0:0:ffff:97ac:1e39
151.172.30.58 0:0:0:0:0:ffff:97ac:1e3a
151.172.30.59 0:0:0:0:0:ffff:97ac:1e3b
151.172.30.60 0:0:0:0:0:ffff:97ac:1e3c


151.172.30.61 0:0:0:0:0:ffff:97ac:1e3d
151.172.30.62 0:0:0:0:0:ffff:97ac:1e3e
151.172.30.63 0:0:0:0:0:ffff:97ac:1e3f
151.172.30.64 0:0:0:0:0:ffff:97ac:1e40
151.172.30.65 0:0:0:0:0:ffff:97ac:1e41
151.172.30.66 0:0:0:0:0:ffff:97ac:1e42
151.172.30.67 0:0:0:0:0:ffff:97ac:1e43
151.172.30.68 0:0:0:0:0:ffff:97ac:1e44
151.172.30.69 0:0:0:0:0:ffff:97ac:1e45
151.172.30.70 0:0:0:0:0:ffff:97ac:1e46
151.172.30.71 0:0:0:0:0:ffff:97ac:1e47
151.172.30.72 0:0:0:0:0:ffff:97ac:1e48
151.172.30.73 0:0:0:0:0:ffff:97ac:1e49
151.172.30.74 0:0:0:0:0:ffff:97ac:1e4a
151.172.30.75 0:0:0:0:0:ffff:97ac:1e4b
151.172.30.76 0:0:0:0:0:ffff:97ac:1e4c
151.172.30.77 0:0:0:0:0:ffff:97ac:1e4d
151.172.30.78 0:0:0:0:0:ffff:97ac:1e4e
151.172.30.79 0:0:0:0:0:ffff:97ac:1e4f
151.172.30.80 0:0:0:0:0:ffff:97ac:1e50
151.172.30.81 0:0:0:0:0:ffff:97ac:1e51
151.172.30.82 0:0:0:0:0:ffff:97ac:1e52
151.172.30.83 0:0:0:0:0:ffff:97ac:1e53
151.172.30.84 0:0:0:0:0:ffff:97ac:1e54
151.172.30.85 0:0:0:0:0:ffff:97ac:1e55
151.172.30.86 0:0:0:0:0:ffff:97ac:1e56
151.172.30.87 0:0:0:0:0:ffff:97ac:1e57
151.172.30.88 0:0:0:0:0:ffff:97ac:1e58
151.172.30.89 0:0:0:0:0:ffff:97ac:1e59
151.172.30.90 0:0:0:0:0:ffff:97ac:1e5a
151.172.30.91 0:0:0:0:0:ffff:97ac:1e5b
151.172.30.92 0:0:0:0:0:ffff:97ac:1e5c
151.172.30.93 0:0:0:0:0:ffff:97ac:1e5d
151.172.30.94 0:0:0:0:0:ffff:97ac:1e5e
151.172.30.95 0:0:0:0:0:ffff:97ac:1e5f
151.172.30.96 0:0:0:0:0:ffff:97ac:1e60
151.172.30.97 0:0:0:0:0:ffff:97ac:1e61
151.172.30.98 0:0:0:0:0:ffff:97ac:1e62
151.172.30.99 0:0:0:0:0:ffff:97ac:1e63
151.172.30.100 0:0:0:0:0:ffff:97ac:1e64
151.172.30.101 0:0:0:0:0:ffff:97ac:1e65
151.172.30.102 0:0:0:0:0:ffff:97ac:1e66
151.172.30.103 0:0:0:0:0:ffff:97ac:1e67
151.172.30.104 0:0:0:0:0:ffff:97ac:1e68
151.172.30.105 0:0:0:0:0:ffff:97ac:1e69
151.172.30.106 0:0:0:0:0:ffff:97ac:1e6a
151.172.30.107 0:0:0:0:0:ffff:97ac:1e6b
151.172.30.108 0:0:0:0:0:ffff:97ac:1e6c
151.172.30.109 0:0:0:0:0:ffff:97ac:1e6d
151.172.30.110 0:0:0:0:0:ffff:97ac:1e6e
151.172.30.111 0:0:0:0:0:ffff:97ac:1e6f
151.172.30.112 0:0:0:0:0:ffff:97ac:1e70
151.172.30.113 0:0:0:0:0:ffff:97ac:1e71
151.172.30.114 0:0:0:0:0:ffff:97ac:1e72
151.172.30.115 0:0:0:0:0:ffff:97ac:1e73
151.172.30.116 0:0:0:0:0:ffff:97ac:1e74
151.172.30.117 0:0:0:0:0:ffff:97ac:1e75
151.172.30.118 0:0:0:0:0:ffff:97ac:1e76
151.172.30.119 0:0:0:0:0:ffff:97ac:1e77
151.172.30.120 0:0:0:0:0:ffff:97ac:1e78


151.172.30.121 0:0:0:0:0:ffff:97ac:1e79
151.172.30.122 0:0:0:0:0:ffff:97ac:1e7a
151.172.30.123 0:0:0:0:0:ffff:97ac:1e7b
151.172.30.124 0:0:0:0:0:ffff:97ac:1e7c
151.172.30.125 0:0:0:0:0:ffff:97ac:1e7d
151.172.30.126 0:0:0:0:0:ffff:97ac:1e7e
151.172.30.127 0:0:0:0:0:ffff:97ac:1e7f
151.172.30.128 0:0:0:0:0:ffff:97ac:1e80
151.172.30.129 0:0:0:0:0:ffff:97ac:1e81
151.172.30.130 0:0:0:0:0:ffff:97ac:1e82
151.172.30.131 0:0:0:0:0:ffff:97ac:1e83
151.172.30.132 0:0:0:0:0:ffff:97ac:1e84
151.172.30.133 0:0:0:0:0:ffff:97ac:1e85
151.172.30.134 0:0:0:0:0:ffff:97ac:1e86
151.172.30.135 0:0:0:0:0:ffff:97ac:1e87
151.172.30.136 0:0:0:0:0:ffff:97ac:1e88
151.172.30.137 0:0:0:0:0:ffff:97ac:1e89
151.172.30.138 0:0:0:0:0:ffff:97ac:1e8a
151.172.30.139 0:0:0:0:0:ffff:97ac:1e8b
151.172.30.140 0:0:0:0:0:ffff:97ac:1e8c
151.172.30.141 0:0:0:0:0:ffff:97ac:1e8d
151.172.30.142 0:0:0:0:0:ffff:97ac:1e8e
151.172.30.143 0:0:0:0:0:ffff:97ac:1e8f
151.172.30.144 0:0:0:0:0:ffff:97ac:1e90
151.172.30.145 0:0:0:0:0:ffff:97ac:1e91
151.172.30.146 0:0:0:0:0:ffff:97ac:1e92
151.172.30.147 0:0:0:0:0:ffff:97ac:1e93
151.172.30.148 0:0:0:0:0:ffff:97ac:1e94
151.172.30.149 0:0:0:0:0:ffff:97ac:1e95
151.172.30.150 0:0:0:0:0:ffff:97ac:1e96
151.172.30.151 0:0:0:0:0:ffff:97ac:1e97
151.172.30.152 0:0:0:0:0:ffff:97ac:1e98
151.172.30.153 0:0:0:0:0:ffff:97ac:1e99
151.172.30.154 0:0:0:0:0:ffff:97ac:1e9a
151.172.30.155 0:0:0:0:0:ffff:97ac:1e9b
151.172.30.156 0:0:0:0:0:ffff:97ac:1e9c
151.172.30.157 0:0:0:0:0:ffff:97ac:1e9d
151.172.30.158 0:0:0:0:0:ffff:97ac:1e9e
151.172.30.159 0:0:0:0:0:ffff:97ac:1e9f
151.172.30.160 0:0:0:0:0:ffff:97ac:1ea0
151.172.30.161 0:0:0:0:0:ffff:97ac:1ea1
151.172.30.162 0:0:0:0:0:ffff:97ac:1ea2
151.172.30.163 0:0:0:0:0:ffff:97ac:1ea3
151.172.30.164 0:0:0:0:0:ffff:97ac:1ea4
151.172.30.165 0:0:0:0:0:ffff:97ac:1ea5
151.172.30.166 0:0:0:0:0:ffff:97ac:1ea6
151.172.30.167 0:0:0:0:0:ffff:97ac:1ea7
151.172.30.168 0:0:0:0:0:ffff:97ac:1ea8
151.172.30.169 0:0:0:0:0:ffff:97ac:1ea9
151.172.30.170 0:0:0:0:0:ffff:97ac:1eaa
151.172.30.171 0:0:0:0:0:ffff:97ac:1eab
151.172.30.172 0:0:0:0:0:ffff:97ac:1eac
151.172.30.173 0:0:0:0:0:ffff:97ac:1ead
151.172.30.174 0:0:0:0:0:ffff:97ac:1eae
151.172.30.175 0:0:0:0:0:ffff:97ac:1eaf
151.172.30.176 0:0:0:0:0:ffff:97ac:1eb0
151.172.30.177 0:0:0:0:0:ffff:97ac:1eb1
151.172.30.178 0:0:0:0:0:ffff:97ac:1eb2
151.172.30.179 0:0:0:0:0:ffff:97ac:1eb3
151.172.30.180 0:0:0:0:0:ffff:97ac:1eb4


151.172.30.181 0:0:0:0:0:ffff:97ac:1eb5
151.172.30.182 0:0:0:0:0:ffff:97ac:1eb6
151.172.30.183 0:0:0:0:0:ffff:97ac:1eb7
151.172.30.184 0:0:0:0:0:ffff:97ac:1eb8
151.172.30.185 0:0:0:0:0:ffff:97ac:1eb9
151.172.30.186 0:0:0:0:0:ffff:97ac:1eba
151.172.30.187 0:0:0:0:0:ffff:97ac:1ebb
151.172.30.188 0:0:0:0:0:ffff:97ac:1ebc
151.172.30.189 0:0:0:0:0:ffff:97ac:1ebd
151.172.30.190 0:0:0:0:0:ffff:97ac:1ebe
151.172.30.191 0:0:0:0:0:ffff:97ac:1ebf
151.172.30.192 0:0:0:0:0:ffff:97ac:1ec0
151.172.30.193 0:0:0:0:0:ffff:97ac:1ec1
151.172.30.194 0:0:0:0:0:ffff:97ac:1ec2
151.172.30.195 0:0:0:0:0:ffff:97ac:1ec3
151.172.30.196 0:0:0:0:0:ffff:97ac:1ec4
151.172.30.197 0:0:0:0:0:ffff:97ac:1ec5
151.172.30.198 0:0:0:0:0:ffff:97ac:1ec6
151.172.30.199 0:0:0:0:0:ffff:97ac:1ec7
151.172.30.200 0:0:0:0:0:ffff:97ac:1ec8
151.172.30.201 0:0:0:0:0:ffff:97ac:1ec9
151.172.30.202 0:0:0:0:0:ffff:97ac:1eca
151.172.30.203 0:0:0:0:0:ffff:97ac:1ecb
151.172.30.204 0:0:0:0:0:ffff:97ac:1ecc
151.172.30.205 0:0:0:0:0:ffff:97ac:1ecd
151.172.30.206 0:0:0:0:0:ffff:97ac:1ece
151.172.30.207 0:0:0:0:0:ffff:97ac:1ecf
151.172.30.208 0:0:0:0:0:ffff:97ac:1ed0
151.172.30.209 0:0:0:0:0:ffff:97ac:1ed1
151.172.30.210 0:0:0:0:0:ffff:97ac:1ed2
151.172.30.211 0:0:0:0:0:ffff:97ac:1ed3
151.172.30.212 0:0:0:0:0:ffff:97ac:1ed4
151.172.30.213 0:0:0:0:0:ffff:97ac:1ed5
151.172.30.214 0:0:0:0:0:ffff:97ac:1ed6
151.172.30.215 0:0:0:0:0:ffff:97ac:1ed7
151.172.30.216 0:0:0:0:0:ffff:97ac:1ed8
151.172.30.217 0:0:0:0:0:ffff:97ac:1ed9
151.172.30.218 0:0:0:0:0:ffff:97ac:1eda
151.172.30.219 0:0:0:0:0:ffff:97ac:1edb
151.172.30.220 0:0:0:0:0:ffff:97ac:1edc
151.172.30.221 0:0:0:0:0:ffff:97ac:1edd
151.172.30.222 0:0:0:0:0:ffff:97ac:1ede
151.172.30.223 0:0:0:0:0:ffff:97ac:1edf
151.172.30.224 0:0:0:0:0:ffff:97ac:1ee0
151.172.30.225 0:0:0:0:0:ffff:97ac:1ee1
151.172.30.226 0:0:0:0:0:ffff:97ac:1ee2
151.172.30.227 0:0:0:0:0:ffff:97ac:1ee3
151.172.30.228 0:0:0:0:0:ffff:97ac:1ee4
151.172.30.229 0:0:0:0:0:ffff:97ac:1ee5
151.172.30.230 0:0:0:0:0:ffff:97ac:1ee6
151.172.30.231 0:0:0:0:0:ffff:97ac:1ee7
151.172.30.232 0:0:0:0:0:ffff:97ac:1ee8
151.172.30.233 0:0:0:0:0:ffff:97ac:1ee9
151.172.30.234 0:0:0:0:0:ffff:97ac:1eea
151.172.30.235 0:0:0:0:0:ffff:97ac:1eeb
151.172.30.236 0:0:0:0:0:ffff:97ac:1eec
151.172.30.237 0:0:0:0:0:ffff:97ac:1eed
151.172.30.238 0:0:0:0:0:ffff:97ac:1eee
151.172.30.239 0:0:0:0:0:ffff:97ac:1eef
151.172.30.240 0:0:0:0:0:ffff:97ac:1ef0
151.172.30.241 0:0:0:0:0:ffff:97ac:1ef1
151.172.30.242 0:0:0:0:0:ffff:97ac:1ef2
151.172.30.243 0:0:0:0:0:ffff:97ac:1ef3
151.172.30.244 0:0:0:0:0:ffff:97ac:1ef4
151.172.30.245 0:0:0:0:0:ffff:97ac:1ef5
151.172.30.246 0:0:0:0:0:ffff:97ac:1ef6
151.172.30.247 0:0:0:0:0:ffff:97ac:1ef7
151.172.30.248 0:0:0:0:0:ffff:97ac:1ef8
151.172.30.249 0:0:0:0:0:ffff:97ac:1ef9
151.172.30.250 0:0:0:0:0:ffff:97ac:1efa
151.172.30.251 0:0:0:0:0:ffff:97ac:1efb
151.172.30.252 0:0:0:0:0:ffff:97ac:1efc
151.172.30.253 0:0:0:0:0:ffff:97ac:1efd
151.172.30.254 0:0:0:0:0:ffff:97ac:1efe
151.172.30.255 0:0:0:0:0:ffff:97ac:1eff


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.