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
90.201.123.1 0:0:0:0:0:ffff:5ac9:7b01
90.201.123.2 0:0:0:0:0:ffff:5ac9:7b02
90.201.123.3 0:0:0:0:0:ffff:5ac9:7b03
90.201.123.4 0:0:0:0:0:ffff:5ac9:7b04
90.201.123.5 0:0:0:0:0:ffff:5ac9:7b05
90.201.123.6 0:0:0:0:0:ffff:5ac9:7b06
90.201.123.7 0:0:0:0:0:ffff:5ac9:7b07
90.201.123.8 0:0:0:0:0:ffff:5ac9:7b08
90.201.123.9 0:0:0:0:0:ffff:5ac9:7b09
90.201.123.10 0:0:0:0:0:ffff:5ac9:7b0a
90.201.123.11 0:0:0:0:0:ffff:5ac9:7b0b
90.201.123.12 0:0:0:0:0:ffff:5ac9:7b0c
90.201.123.13 0:0:0:0:0:ffff:5ac9:7b0d
90.201.123.14 0:0:0:0:0:ffff:5ac9:7b0e
90.201.123.15 0:0:0:0:0:ffff:5ac9:7b0f
90.201.123.16 0:0:0:0:0:ffff:5ac9:7b10
90.201.123.17 0:0:0:0:0:ffff:5ac9:7b11
90.201.123.18 0:0:0:0:0:ffff:5ac9:7b12
90.201.123.19 0:0:0:0:0:ffff:5ac9:7b13
90.201.123.20 0:0:0:0:0:ffff:5ac9:7b14
90.201.123.21 0:0:0:0:0:ffff:5ac9:7b15
90.201.123.22 0:0:0:0:0:ffff:5ac9:7b16
90.201.123.23 0:0:0:0:0:ffff:5ac9:7b17
90.201.123.24 0:0:0:0:0:ffff:5ac9:7b18
90.201.123.25 0:0:0:0:0:ffff:5ac9:7b19
90.201.123.26 0:0:0:0:0:ffff:5ac9:7b1a
90.201.123.27 0:0:0:0:0:ffff:5ac9:7b1b
90.201.123.28 0:0:0:0:0:ffff:5ac9:7b1c
90.201.123.29 0:0:0:0:0:ffff:5ac9:7b1d
90.201.123.30 0:0:0:0:0:ffff:5ac9:7b1e
90.201.123.31 0:0:0:0:0:ffff:5ac9:7b1f
90.201.123.32 0:0:0:0:0:ffff:5ac9:7b20
90.201.123.33 0:0:0:0:0:ffff:5ac9:7b21
90.201.123.34 0:0:0:0:0:ffff:5ac9:7b22
90.201.123.35 0:0:0:0:0:ffff:5ac9:7b23
90.201.123.36 0:0:0:0:0:ffff:5ac9:7b24
90.201.123.37 0:0:0:0:0:ffff:5ac9:7b25
90.201.123.38 0:0:0:0:0:ffff:5ac9:7b26
90.201.123.39 0:0:0:0:0:ffff:5ac9:7b27
90.201.123.40 0:0:0:0:0:ffff:5ac9:7b28
90.201.123.41 0:0:0:0:0:ffff:5ac9:7b29
90.201.123.42 0:0:0:0:0:ffff:5ac9:7b2a
90.201.123.43 0:0:0:0:0:ffff:5ac9:7b2b
90.201.123.44 0:0:0:0:0:ffff:5ac9:7b2c
90.201.123.45 0:0:0:0:0:ffff:5ac9:7b2d
90.201.123.46 0:0:0:0:0:ffff:5ac9:7b2e
90.201.123.47 0:0:0:0:0:ffff:5ac9:7b2f
90.201.123.48 0:0:0:0:0:ffff:5ac9:7b30
90.201.123.49 0:0:0:0:0:ffff:5ac9:7b31
90.201.123.50 0:0:0:0:0:ffff:5ac9:7b32
90.201.123.51 0:0:0:0:0:ffff:5ac9:7b33
90.201.123.52 0:0:0:0:0:ffff:5ac9:7b34
90.201.123.53 0:0:0:0:0:ffff:5ac9:7b35
90.201.123.54 0:0:0:0:0:ffff:5ac9:7b36
90.201.123.55 0:0:0:0:0:ffff:5ac9:7b37
90.201.123.56 0:0:0:0:0:ffff:5ac9:7b38
90.201.123.57 0:0:0:0:0:ffff:5ac9:7b39
90.201.123.58 0:0:0:0:0:ffff:5ac9:7b3a
90.201.123.59 0:0:0:0:0:ffff:5ac9:7b3b
90.201.123.60 0:0:0:0:0:ffff:5ac9:7b3c


90.201.123.61 0:0:0:0:0:ffff:5ac9:7b3d
90.201.123.62 0:0:0:0:0:ffff:5ac9:7b3e
90.201.123.63 0:0:0:0:0:ffff:5ac9:7b3f
90.201.123.64 0:0:0:0:0:ffff:5ac9:7b40
90.201.123.65 0:0:0:0:0:ffff:5ac9:7b41
90.201.123.66 0:0:0:0:0:ffff:5ac9:7b42
90.201.123.67 0:0:0:0:0:ffff:5ac9:7b43
90.201.123.68 0:0:0:0:0:ffff:5ac9:7b44
90.201.123.69 0:0:0:0:0:ffff:5ac9:7b45
90.201.123.70 0:0:0:0:0:ffff:5ac9:7b46
90.201.123.71 0:0:0:0:0:ffff:5ac9:7b47
90.201.123.72 0:0:0:0:0:ffff:5ac9:7b48
90.201.123.73 0:0:0:0:0:ffff:5ac9:7b49
90.201.123.74 0:0:0:0:0:ffff:5ac9:7b4a
90.201.123.75 0:0:0:0:0:ffff:5ac9:7b4b
90.201.123.76 0:0:0:0:0:ffff:5ac9:7b4c
90.201.123.77 0:0:0:0:0:ffff:5ac9:7b4d
90.201.123.78 0:0:0:0:0:ffff:5ac9:7b4e
90.201.123.79 0:0:0:0:0:ffff:5ac9:7b4f
90.201.123.80 0:0:0:0:0:ffff:5ac9:7b50
90.201.123.81 0:0:0:0:0:ffff:5ac9:7b51
90.201.123.82 0:0:0:0:0:ffff:5ac9:7b52
90.201.123.83 0:0:0:0:0:ffff:5ac9:7b53
90.201.123.84 0:0:0:0:0:ffff:5ac9:7b54
90.201.123.85 0:0:0:0:0:ffff:5ac9:7b55
90.201.123.86 0:0:0:0:0:ffff:5ac9:7b56
90.201.123.87 0:0:0:0:0:ffff:5ac9:7b57
90.201.123.88 0:0:0:0:0:ffff:5ac9:7b58
90.201.123.89 0:0:0:0:0:ffff:5ac9:7b59
90.201.123.90 0:0:0:0:0:ffff:5ac9:7b5a
90.201.123.91 0:0:0:0:0:ffff:5ac9:7b5b
90.201.123.92 0:0:0:0:0:ffff:5ac9:7b5c
90.201.123.93 0:0:0:0:0:ffff:5ac9:7b5d
90.201.123.94 0:0:0:0:0:ffff:5ac9:7b5e
90.201.123.95 0:0:0:0:0:ffff:5ac9:7b5f
90.201.123.96 0:0:0:0:0:ffff:5ac9:7b60
90.201.123.97 0:0:0:0:0:ffff:5ac9:7b61
90.201.123.98 0:0:0:0:0:ffff:5ac9:7b62
90.201.123.99 0:0:0:0:0:ffff:5ac9:7b63
90.201.123.100 0:0:0:0:0:ffff:5ac9:7b64
90.201.123.101 0:0:0:0:0:ffff:5ac9:7b65
90.201.123.102 0:0:0:0:0:ffff:5ac9:7b66
90.201.123.103 0:0:0:0:0:ffff:5ac9:7b67
90.201.123.104 0:0:0:0:0:ffff:5ac9:7b68
90.201.123.105 0:0:0:0:0:ffff:5ac9:7b69
90.201.123.106 0:0:0:0:0:ffff:5ac9:7b6a
90.201.123.107 0:0:0:0:0:ffff:5ac9:7b6b
90.201.123.108 0:0:0:0:0:ffff:5ac9:7b6c
90.201.123.109 0:0:0:0:0:ffff:5ac9:7b6d
90.201.123.110 0:0:0:0:0:ffff:5ac9:7b6e
90.201.123.111 0:0:0:0:0:ffff:5ac9:7b6f
90.201.123.112 0:0:0:0:0:ffff:5ac9:7b70
90.201.123.113 0:0:0:0:0:ffff:5ac9:7b71
90.201.123.114 0:0:0:0:0:ffff:5ac9:7b72
90.201.123.115 0:0:0:0:0:ffff:5ac9:7b73
90.201.123.116 0:0:0:0:0:ffff:5ac9:7b74
90.201.123.117 0:0:0:0:0:ffff:5ac9:7b75
90.201.123.118 0:0:0:0:0:ffff:5ac9:7b76
90.201.123.119 0:0:0:0:0:ffff:5ac9:7b77
90.201.123.120 0:0:0:0:0:ffff:5ac9:7b78


90.201.123.121 0:0:0:0:0:ffff:5ac9:7b79
90.201.123.122 0:0:0:0:0:ffff:5ac9:7b7a
90.201.123.123 0:0:0:0:0:ffff:5ac9:7b7b
90.201.123.124 0:0:0:0:0:ffff:5ac9:7b7c
90.201.123.125 0:0:0:0:0:ffff:5ac9:7b7d
90.201.123.126 0:0:0:0:0:ffff:5ac9:7b7e
90.201.123.127 0:0:0:0:0:ffff:5ac9:7b7f
90.201.123.128 0:0:0:0:0:ffff:5ac9:7b80
90.201.123.129 0:0:0:0:0:ffff:5ac9:7b81
90.201.123.130 0:0:0:0:0:ffff:5ac9:7b82
90.201.123.131 0:0:0:0:0:ffff:5ac9:7b83
90.201.123.132 0:0:0:0:0:ffff:5ac9:7b84
90.201.123.133 0:0:0:0:0:ffff:5ac9:7b85
90.201.123.134 0:0:0:0:0:ffff:5ac9:7b86
90.201.123.135 0:0:0:0:0:ffff:5ac9:7b87
90.201.123.136 0:0:0:0:0:ffff:5ac9:7b88
90.201.123.137 0:0:0:0:0:ffff:5ac9:7b89
90.201.123.138 0:0:0:0:0:ffff:5ac9:7b8a
90.201.123.139 0:0:0:0:0:ffff:5ac9:7b8b
90.201.123.140 0:0:0:0:0:ffff:5ac9:7b8c
90.201.123.141 0:0:0:0:0:ffff:5ac9:7b8d
90.201.123.142 0:0:0:0:0:ffff:5ac9:7b8e
90.201.123.143 0:0:0:0:0:ffff:5ac9:7b8f
90.201.123.144 0:0:0:0:0:ffff:5ac9:7b90
90.201.123.145 0:0:0:0:0:ffff:5ac9:7b91
90.201.123.146 0:0:0:0:0:ffff:5ac9:7b92
90.201.123.147 0:0:0:0:0:ffff:5ac9:7b93
90.201.123.148 0:0:0:0:0:ffff:5ac9:7b94
90.201.123.149 0:0:0:0:0:ffff:5ac9:7b95
90.201.123.150 0:0:0:0:0:ffff:5ac9:7b96
90.201.123.151 0:0:0:0:0:ffff:5ac9:7b97
90.201.123.152 0:0:0:0:0:ffff:5ac9:7b98
90.201.123.153 0:0:0:0:0:ffff:5ac9:7b99
90.201.123.154 0:0:0:0:0:ffff:5ac9:7b9a
90.201.123.155 0:0:0:0:0:ffff:5ac9:7b9b
90.201.123.156 0:0:0:0:0:ffff:5ac9:7b9c
90.201.123.157 0:0:0:0:0:ffff:5ac9:7b9d
90.201.123.158 0:0:0:0:0:ffff:5ac9:7b9e
90.201.123.159 0:0:0:0:0:ffff:5ac9:7b9f
90.201.123.160 0:0:0:0:0:ffff:5ac9:7ba0
90.201.123.161 0:0:0:0:0:ffff:5ac9:7ba1
90.201.123.162 0:0:0:0:0:ffff:5ac9:7ba2
90.201.123.163 0:0:0:0:0:ffff:5ac9:7ba3
90.201.123.164 0:0:0:0:0:ffff:5ac9:7ba4
90.201.123.165 0:0:0:0:0:ffff:5ac9:7ba5
90.201.123.166 0:0:0:0:0:ffff:5ac9:7ba6
90.201.123.167 0:0:0:0:0:ffff:5ac9:7ba7
90.201.123.168 0:0:0:0:0:ffff:5ac9:7ba8
90.201.123.169 0:0:0:0:0:ffff:5ac9:7ba9
90.201.123.170 0:0:0:0:0:ffff:5ac9:7baa
90.201.123.171 0:0:0:0:0:ffff:5ac9:7bab
90.201.123.172 0:0:0:0:0:ffff:5ac9:7bac
90.201.123.173 0:0:0:0:0:ffff:5ac9:7bad
90.201.123.174 0:0:0:0:0:ffff:5ac9:7bae
90.201.123.175 0:0:0:0:0:ffff:5ac9:7baf
90.201.123.176 0:0:0:0:0:ffff:5ac9:7bb0
90.201.123.177 0:0:0:0:0:ffff:5ac9:7bb1
90.201.123.178 0:0:0:0:0:ffff:5ac9:7bb2
90.201.123.179 0:0:0:0:0:ffff:5ac9:7bb3
90.201.123.180 0:0:0:0:0:ffff:5ac9:7bb4


90.201.123.181 0:0:0:0:0:ffff:5ac9:7bb5
90.201.123.182 0:0:0:0:0:ffff:5ac9:7bb6
90.201.123.183 0:0:0:0:0:ffff:5ac9:7bb7
90.201.123.184 0:0:0:0:0:ffff:5ac9:7bb8
90.201.123.185 0:0:0:0:0:ffff:5ac9:7bb9
90.201.123.186 0:0:0:0:0:ffff:5ac9:7bba
90.201.123.187 0:0:0:0:0:ffff:5ac9:7bbb
90.201.123.188 0:0:0:0:0:ffff:5ac9:7bbc
90.201.123.189 0:0:0:0:0:ffff:5ac9:7bbd
90.201.123.190 0:0:0:0:0:ffff:5ac9:7bbe
90.201.123.191 0:0:0:0:0:ffff:5ac9:7bbf
90.201.123.192 0:0:0:0:0:ffff:5ac9:7bc0
90.201.123.193 0:0:0:0:0:ffff:5ac9:7bc1
90.201.123.194 0:0:0:0:0:ffff:5ac9:7bc2
90.201.123.195 0:0:0:0:0:ffff:5ac9:7bc3
90.201.123.196 0:0:0:0:0:ffff:5ac9:7bc4
90.201.123.197 0:0:0:0:0:ffff:5ac9:7bc5
90.201.123.198 0:0:0:0:0:ffff:5ac9:7bc6
90.201.123.199 0:0:0:0:0:ffff:5ac9:7bc7
90.201.123.200 0:0:0:0:0:ffff:5ac9:7bc8
90.201.123.201 0:0:0:0:0:ffff:5ac9:7bc9
90.201.123.202 0:0:0:0:0:ffff:5ac9:7bca
90.201.123.203 0:0:0:0:0:ffff:5ac9:7bcb
90.201.123.204 0:0:0:0:0:ffff:5ac9:7bcc
90.201.123.205 0:0:0:0:0:ffff:5ac9:7bcd
90.201.123.206 0:0:0:0:0:ffff:5ac9:7bce
90.201.123.207 0:0:0:0:0:ffff:5ac9:7bcf
90.201.123.208 0:0:0:0:0:ffff:5ac9:7bd0
90.201.123.209 0:0:0:0:0:ffff:5ac9:7bd1
90.201.123.210 0:0:0:0:0:ffff:5ac9:7bd2
90.201.123.211 0:0:0:0:0:ffff:5ac9:7bd3
90.201.123.212 0:0:0:0:0:ffff:5ac9:7bd4
90.201.123.213 0:0:0:0:0:ffff:5ac9:7bd5
90.201.123.214 0:0:0:0:0:ffff:5ac9:7bd6
90.201.123.215 0:0:0:0:0:ffff:5ac9:7bd7
90.201.123.216 0:0:0:0:0:ffff:5ac9:7bd8
90.201.123.217 0:0:0:0:0:ffff:5ac9:7bd9
90.201.123.218 0:0:0:0:0:ffff:5ac9:7bda
90.201.123.219 0:0:0:0:0:ffff:5ac9:7bdb
90.201.123.220 0:0:0:0:0:ffff:5ac9:7bdc
90.201.123.221 0:0:0:0:0:ffff:5ac9:7bdd
90.201.123.222 0:0:0:0:0:ffff:5ac9:7bde
90.201.123.223 0:0:0:0:0:ffff:5ac9:7bdf
90.201.123.224 0:0:0:0:0:ffff:5ac9:7be0
90.201.123.225 0:0:0:0:0:ffff:5ac9:7be1
90.201.123.226 0:0:0:0:0:ffff:5ac9:7be2
90.201.123.227 0:0:0:0:0:ffff:5ac9:7be3
90.201.123.228 0:0:0:0:0:ffff:5ac9:7be4
90.201.123.229 0:0:0:0:0:ffff:5ac9:7be5
90.201.123.230 0:0:0:0:0:ffff:5ac9:7be6
90.201.123.231 0:0:0:0:0:ffff:5ac9:7be7
90.201.123.232 0:0:0:0:0:ffff:5ac9:7be8
90.201.123.233 0:0:0:0:0:ffff:5ac9:7be9
90.201.123.234 0:0:0:0:0:ffff:5ac9:7bea
90.201.123.235 0:0:0:0:0:ffff:5ac9:7beb
90.201.123.236 0:0:0:0:0:ffff:5ac9:7bec
90.201.123.237 0:0:0:0:0:ffff:5ac9:7bed
90.201.123.238 0:0:0:0:0:ffff:5ac9:7bee
90.201.123.239 0:0:0:0:0:ffff:5ac9:7bef
90.201.123.240 0:0:0:0:0:ffff:5ac9:7bf0
90.201.123.241 0:0:0:0:0:ffff:5ac9:7bf1
90.201.123.242 0:0:0:0:0:ffff:5ac9:7bf2
90.201.123.243 0:0:0:0:0:ffff:5ac9:7bf3
90.201.123.244 0:0:0:0:0:ffff:5ac9:7bf4
90.201.123.245 0:0:0:0:0:ffff:5ac9:7bf5
90.201.123.246 0:0:0:0:0:ffff:5ac9:7bf6
90.201.123.247 0:0:0:0:0:ffff:5ac9:7bf7
90.201.123.248 0:0:0:0:0:ffff:5ac9:7bf8
90.201.123.249 0:0:0:0:0:ffff:5ac9:7bf9
90.201.123.250 0:0:0:0:0:ffff:5ac9:7bfa
90.201.123.251 0:0:0:0:0:ffff:5ac9:7bfb
90.201.123.252 0:0:0:0:0:ffff:5ac9:7bfc
90.201.123.253 0:0:0:0:0:ffff:5ac9:7bfd
90.201.123.254 0:0:0:0:0:ffff:5ac9:7bfe
90.201.123.255 0:0:0:0:0:ffff:5ac9:7bff


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.