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
40.217.123.1 0:0:0:0:0:ffff:28d9:7b01
40.217.123.2 0:0:0:0:0:ffff:28d9:7b02
40.217.123.3 0:0:0:0:0:ffff:28d9:7b03
40.217.123.4 0:0:0:0:0:ffff:28d9:7b04
40.217.123.5 0:0:0:0:0:ffff:28d9:7b05
40.217.123.6 0:0:0:0:0:ffff:28d9:7b06
40.217.123.7 0:0:0:0:0:ffff:28d9:7b07
40.217.123.8 0:0:0:0:0:ffff:28d9:7b08
40.217.123.9 0:0:0:0:0:ffff:28d9:7b09
40.217.123.10 0:0:0:0:0:ffff:28d9:7b0a
40.217.123.11 0:0:0:0:0:ffff:28d9:7b0b
40.217.123.12 0:0:0:0:0:ffff:28d9:7b0c
40.217.123.13 0:0:0:0:0:ffff:28d9:7b0d
40.217.123.14 0:0:0:0:0:ffff:28d9:7b0e
40.217.123.15 0:0:0:0:0:ffff:28d9:7b0f
40.217.123.16 0:0:0:0:0:ffff:28d9:7b10
40.217.123.17 0:0:0:0:0:ffff:28d9:7b11
40.217.123.18 0:0:0:0:0:ffff:28d9:7b12
40.217.123.19 0:0:0:0:0:ffff:28d9:7b13
40.217.123.20 0:0:0:0:0:ffff:28d9:7b14
40.217.123.21 0:0:0:0:0:ffff:28d9:7b15
40.217.123.22 0:0:0:0:0:ffff:28d9:7b16
40.217.123.23 0:0:0:0:0:ffff:28d9:7b17
40.217.123.24 0:0:0:0:0:ffff:28d9:7b18
40.217.123.25 0:0:0:0:0:ffff:28d9:7b19
40.217.123.26 0:0:0:0:0:ffff:28d9:7b1a
40.217.123.27 0:0:0:0:0:ffff:28d9:7b1b
40.217.123.28 0:0:0:0:0:ffff:28d9:7b1c
40.217.123.29 0:0:0:0:0:ffff:28d9:7b1d
40.217.123.30 0:0:0:0:0:ffff:28d9:7b1e
40.217.123.31 0:0:0:0:0:ffff:28d9:7b1f
40.217.123.32 0:0:0:0:0:ffff:28d9:7b20
40.217.123.33 0:0:0:0:0:ffff:28d9:7b21
40.217.123.34 0:0:0:0:0:ffff:28d9:7b22
40.217.123.35 0:0:0:0:0:ffff:28d9:7b23
40.217.123.36 0:0:0:0:0:ffff:28d9:7b24
40.217.123.37 0:0:0:0:0:ffff:28d9:7b25
40.217.123.38 0:0:0:0:0:ffff:28d9:7b26
40.217.123.39 0:0:0:0:0:ffff:28d9:7b27
40.217.123.40 0:0:0:0:0:ffff:28d9:7b28
40.217.123.41 0:0:0:0:0:ffff:28d9:7b29
40.217.123.42 0:0:0:0:0:ffff:28d9:7b2a
40.217.123.43 0:0:0:0:0:ffff:28d9:7b2b
40.217.123.44 0:0:0:0:0:ffff:28d9:7b2c
40.217.123.45 0:0:0:0:0:ffff:28d9:7b2d
40.217.123.46 0:0:0:0:0:ffff:28d9:7b2e
40.217.123.47 0:0:0:0:0:ffff:28d9:7b2f
40.217.123.48 0:0:0:0:0:ffff:28d9:7b30
40.217.123.49 0:0:0:0:0:ffff:28d9:7b31
40.217.123.50 0:0:0:0:0:ffff:28d9:7b32
40.217.123.51 0:0:0:0:0:ffff:28d9:7b33
40.217.123.52 0:0:0:0:0:ffff:28d9:7b34
40.217.123.53 0:0:0:0:0:ffff:28d9:7b35
40.217.123.54 0:0:0:0:0:ffff:28d9:7b36
40.217.123.55 0:0:0:0:0:ffff:28d9:7b37
40.217.123.56 0:0:0:0:0:ffff:28d9:7b38
40.217.123.57 0:0:0:0:0:ffff:28d9:7b39
40.217.123.58 0:0:0:0:0:ffff:28d9:7b3a
40.217.123.59 0:0:0:0:0:ffff:28d9:7b3b
40.217.123.60 0:0:0:0:0:ffff:28d9:7b3c


40.217.123.61 0:0:0:0:0:ffff:28d9:7b3d
40.217.123.62 0:0:0:0:0:ffff:28d9:7b3e
40.217.123.63 0:0:0:0:0:ffff:28d9:7b3f
40.217.123.64 0:0:0:0:0:ffff:28d9:7b40
40.217.123.65 0:0:0:0:0:ffff:28d9:7b41
40.217.123.66 0:0:0:0:0:ffff:28d9:7b42
40.217.123.67 0:0:0:0:0:ffff:28d9:7b43
40.217.123.68 0:0:0:0:0:ffff:28d9:7b44
40.217.123.69 0:0:0:0:0:ffff:28d9:7b45
40.217.123.70 0:0:0:0:0:ffff:28d9:7b46
40.217.123.71 0:0:0:0:0:ffff:28d9:7b47
40.217.123.72 0:0:0:0:0:ffff:28d9:7b48
40.217.123.73 0:0:0:0:0:ffff:28d9:7b49
40.217.123.74 0:0:0:0:0:ffff:28d9:7b4a
40.217.123.75 0:0:0:0:0:ffff:28d9:7b4b
40.217.123.76 0:0:0:0:0:ffff:28d9:7b4c
40.217.123.77 0:0:0:0:0:ffff:28d9:7b4d
40.217.123.78 0:0:0:0:0:ffff:28d9:7b4e
40.217.123.79 0:0:0:0:0:ffff:28d9:7b4f
40.217.123.80 0:0:0:0:0:ffff:28d9:7b50
40.217.123.81 0:0:0:0:0:ffff:28d9:7b51
40.217.123.82 0:0:0:0:0:ffff:28d9:7b52
40.217.123.83 0:0:0:0:0:ffff:28d9:7b53
40.217.123.84 0:0:0:0:0:ffff:28d9:7b54
40.217.123.85 0:0:0:0:0:ffff:28d9:7b55
40.217.123.86 0:0:0:0:0:ffff:28d9:7b56
40.217.123.87 0:0:0:0:0:ffff:28d9:7b57
40.217.123.88 0:0:0:0:0:ffff:28d9:7b58
40.217.123.89 0:0:0:0:0:ffff:28d9:7b59
40.217.123.90 0:0:0:0:0:ffff:28d9:7b5a
40.217.123.91 0:0:0:0:0:ffff:28d9:7b5b
40.217.123.92 0:0:0:0:0:ffff:28d9:7b5c
40.217.123.93 0:0:0:0:0:ffff:28d9:7b5d
40.217.123.94 0:0:0:0:0:ffff:28d9:7b5e
40.217.123.95 0:0:0:0:0:ffff:28d9:7b5f
40.217.123.96 0:0:0:0:0:ffff:28d9:7b60
40.217.123.97 0:0:0:0:0:ffff:28d9:7b61
40.217.123.98 0:0:0:0:0:ffff:28d9:7b62
40.217.123.99 0:0:0:0:0:ffff:28d9:7b63
40.217.123.100 0:0:0:0:0:ffff:28d9:7b64
40.217.123.101 0:0:0:0:0:ffff:28d9:7b65
40.217.123.102 0:0:0:0:0:ffff:28d9:7b66
40.217.123.103 0:0:0:0:0:ffff:28d9:7b67
40.217.123.104 0:0:0:0:0:ffff:28d9:7b68
40.217.123.105 0:0:0:0:0:ffff:28d9:7b69
40.217.123.106 0:0:0:0:0:ffff:28d9:7b6a
40.217.123.107 0:0:0:0:0:ffff:28d9:7b6b
40.217.123.108 0:0:0:0:0:ffff:28d9:7b6c
40.217.123.109 0:0:0:0:0:ffff:28d9:7b6d
40.217.123.110 0:0:0:0:0:ffff:28d9:7b6e
40.217.123.111 0:0:0:0:0:ffff:28d9:7b6f
40.217.123.112 0:0:0:0:0:ffff:28d9:7b70
40.217.123.113 0:0:0:0:0:ffff:28d9:7b71
40.217.123.114 0:0:0:0:0:ffff:28d9:7b72
40.217.123.115 0:0:0:0:0:ffff:28d9:7b73
40.217.123.116 0:0:0:0:0:ffff:28d9:7b74
40.217.123.117 0:0:0:0:0:ffff:28d9:7b75
40.217.123.118 0:0:0:0:0:ffff:28d9:7b76
40.217.123.119 0:0:0:0:0:ffff:28d9:7b77
40.217.123.120 0:0:0:0:0:ffff:28d9:7b78


40.217.123.121 0:0:0:0:0:ffff:28d9:7b79
40.217.123.122 0:0:0:0:0:ffff:28d9:7b7a
40.217.123.123 0:0:0:0:0:ffff:28d9:7b7b
40.217.123.124 0:0:0:0:0:ffff:28d9:7b7c
40.217.123.125 0:0:0:0:0:ffff:28d9:7b7d
40.217.123.126 0:0:0:0:0:ffff:28d9:7b7e
40.217.123.127 0:0:0:0:0:ffff:28d9:7b7f
40.217.123.128 0:0:0:0:0:ffff:28d9:7b80
40.217.123.129 0:0:0:0:0:ffff:28d9:7b81
40.217.123.130 0:0:0:0:0:ffff:28d9:7b82
40.217.123.131 0:0:0:0:0:ffff:28d9:7b83
40.217.123.132 0:0:0:0:0:ffff:28d9:7b84
40.217.123.133 0:0:0:0:0:ffff:28d9:7b85
40.217.123.134 0:0:0:0:0:ffff:28d9:7b86
40.217.123.135 0:0:0:0:0:ffff:28d9:7b87
40.217.123.136 0:0:0:0:0:ffff:28d9:7b88
40.217.123.137 0:0:0:0:0:ffff:28d9:7b89
40.217.123.138 0:0:0:0:0:ffff:28d9:7b8a
40.217.123.139 0:0:0:0:0:ffff:28d9:7b8b
40.217.123.140 0:0:0:0:0:ffff:28d9:7b8c
40.217.123.141 0:0:0:0:0:ffff:28d9:7b8d
40.217.123.142 0:0:0:0:0:ffff:28d9:7b8e
40.217.123.143 0:0:0:0:0:ffff:28d9:7b8f
40.217.123.144 0:0:0:0:0:ffff:28d9:7b90
40.217.123.145 0:0:0:0:0:ffff:28d9:7b91
40.217.123.146 0:0:0:0:0:ffff:28d9:7b92
40.217.123.147 0:0:0:0:0:ffff:28d9:7b93
40.217.123.148 0:0:0:0:0:ffff:28d9:7b94
40.217.123.149 0:0:0:0:0:ffff:28d9:7b95
40.217.123.150 0:0:0:0:0:ffff:28d9:7b96
40.217.123.151 0:0:0:0:0:ffff:28d9:7b97
40.217.123.152 0:0:0:0:0:ffff:28d9:7b98
40.217.123.153 0:0:0:0:0:ffff:28d9:7b99
40.217.123.154 0:0:0:0:0:ffff:28d9:7b9a
40.217.123.155 0:0:0:0:0:ffff:28d9:7b9b
40.217.123.156 0:0:0:0:0:ffff:28d9:7b9c
40.217.123.157 0:0:0:0:0:ffff:28d9:7b9d
40.217.123.158 0:0:0:0:0:ffff:28d9:7b9e
40.217.123.159 0:0:0:0:0:ffff:28d9:7b9f
40.217.123.160 0:0:0:0:0:ffff:28d9:7ba0
40.217.123.161 0:0:0:0:0:ffff:28d9:7ba1
40.217.123.162 0:0:0:0:0:ffff:28d9:7ba2
40.217.123.163 0:0:0:0:0:ffff:28d9:7ba3
40.217.123.164 0:0:0:0:0:ffff:28d9:7ba4
40.217.123.165 0:0:0:0:0:ffff:28d9:7ba5
40.217.123.166 0:0:0:0:0:ffff:28d9:7ba6
40.217.123.167 0:0:0:0:0:ffff:28d9:7ba7
40.217.123.168 0:0:0:0:0:ffff:28d9:7ba8
40.217.123.169 0:0:0:0:0:ffff:28d9:7ba9
40.217.123.170 0:0:0:0:0:ffff:28d9:7baa
40.217.123.171 0:0:0:0:0:ffff:28d9:7bab
40.217.123.172 0:0:0:0:0:ffff:28d9:7bac
40.217.123.173 0:0:0:0:0:ffff:28d9:7bad
40.217.123.174 0:0:0:0:0:ffff:28d9:7bae
40.217.123.175 0:0:0:0:0:ffff:28d9:7baf
40.217.123.176 0:0:0:0:0:ffff:28d9:7bb0
40.217.123.177 0:0:0:0:0:ffff:28d9:7bb1
40.217.123.178 0:0:0:0:0:ffff:28d9:7bb2
40.217.123.179 0:0:0:0:0:ffff:28d9:7bb3
40.217.123.180 0:0:0:0:0:ffff:28d9:7bb4


40.217.123.181 0:0:0:0:0:ffff:28d9:7bb5
40.217.123.182 0:0:0:0:0:ffff:28d9:7bb6
40.217.123.183 0:0:0:0:0:ffff:28d9:7bb7
40.217.123.184 0:0:0:0:0:ffff:28d9:7bb8
40.217.123.185 0:0:0:0:0:ffff:28d9:7bb9
40.217.123.186 0:0:0:0:0:ffff:28d9:7bba
40.217.123.187 0:0:0:0:0:ffff:28d9:7bbb
40.217.123.188 0:0:0:0:0:ffff:28d9:7bbc
40.217.123.189 0:0:0:0:0:ffff:28d9:7bbd
40.217.123.190 0:0:0:0:0:ffff:28d9:7bbe
40.217.123.191 0:0:0:0:0:ffff:28d9:7bbf
40.217.123.192 0:0:0:0:0:ffff:28d9:7bc0
40.217.123.193 0:0:0:0:0:ffff:28d9:7bc1
40.217.123.194 0:0:0:0:0:ffff:28d9:7bc2
40.217.123.195 0:0:0:0:0:ffff:28d9:7bc3
40.217.123.196 0:0:0:0:0:ffff:28d9:7bc4
40.217.123.197 0:0:0:0:0:ffff:28d9:7bc5
40.217.123.198 0:0:0:0:0:ffff:28d9:7bc6
40.217.123.199 0:0:0:0:0:ffff:28d9:7bc7
40.217.123.200 0:0:0:0:0:ffff:28d9:7bc8
40.217.123.201 0:0:0:0:0:ffff:28d9:7bc9
40.217.123.202 0:0:0:0:0:ffff:28d9:7bca
40.217.123.203 0:0:0:0:0:ffff:28d9:7bcb
40.217.123.204 0:0:0:0:0:ffff:28d9:7bcc
40.217.123.205 0:0:0:0:0:ffff:28d9:7bcd
40.217.123.206 0:0:0:0:0:ffff:28d9:7bce
40.217.123.207 0:0:0:0:0:ffff:28d9:7bcf
40.217.123.208 0:0:0:0:0:ffff:28d9:7bd0
40.217.123.209 0:0:0:0:0:ffff:28d9:7bd1
40.217.123.210 0:0:0:0:0:ffff:28d9:7bd2
40.217.123.211 0:0:0:0:0:ffff:28d9:7bd3
40.217.123.212 0:0:0:0:0:ffff:28d9:7bd4
40.217.123.213 0:0:0:0:0:ffff:28d9:7bd5
40.217.123.214 0:0:0:0:0:ffff:28d9:7bd6
40.217.123.215 0:0:0:0:0:ffff:28d9:7bd7
40.217.123.216 0:0:0:0:0:ffff:28d9:7bd8
40.217.123.217 0:0:0:0:0:ffff:28d9:7bd9
40.217.123.218 0:0:0:0:0:ffff:28d9:7bda
40.217.123.219 0:0:0:0:0:ffff:28d9:7bdb
40.217.123.220 0:0:0:0:0:ffff:28d9:7bdc
40.217.123.221 0:0:0:0:0:ffff:28d9:7bdd
40.217.123.222 0:0:0:0:0:ffff:28d9:7bde
40.217.123.223 0:0:0:0:0:ffff:28d9:7bdf
40.217.123.224 0:0:0:0:0:ffff:28d9:7be0
40.217.123.225 0:0:0:0:0:ffff:28d9:7be1
40.217.123.226 0:0:0:0:0:ffff:28d9:7be2
40.217.123.227 0:0:0:0:0:ffff:28d9:7be3
40.217.123.228 0:0:0:0:0:ffff:28d9:7be4
40.217.123.229 0:0:0:0:0:ffff:28d9:7be5
40.217.123.230 0:0:0:0:0:ffff:28d9:7be6
40.217.123.231 0:0:0:0:0:ffff:28d9:7be7
40.217.123.232 0:0:0:0:0:ffff:28d9:7be8
40.217.123.233 0:0:0:0:0:ffff:28d9:7be9
40.217.123.234 0:0:0:0:0:ffff:28d9:7bea
40.217.123.235 0:0:0:0:0:ffff:28d9:7beb
40.217.123.236 0:0:0:0:0:ffff:28d9:7bec
40.217.123.237 0:0:0:0:0:ffff:28d9:7bed
40.217.123.238 0:0:0:0:0:ffff:28d9:7bee
40.217.123.239 0:0:0:0:0:ffff:28d9:7bef
40.217.123.240 0:0:0:0:0:ffff:28d9:7bf0
40.217.123.241 0:0:0:0:0:ffff:28d9:7bf1
40.217.123.242 0:0:0:0:0:ffff:28d9:7bf2
40.217.123.243 0:0:0:0:0:ffff:28d9:7bf3
40.217.123.244 0:0:0:0:0:ffff:28d9:7bf4
40.217.123.245 0:0:0:0:0:ffff:28d9:7bf5
40.217.123.246 0:0:0:0:0:ffff:28d9:7bf6
40.217.123.247 0:0:0:0:0:ffff:28d9:7bf7
40.217.123.248 0:0:0:0:0:ffff:28d9:7bf8
40.217.123.249 0:0:0:0:0:ffff:28d9:7bf9
40.217.123.250 0:0:0:0:0:ffff:28d9:7bfa
40.217.123.251 0:0:0:0:0:ffff:28d9:7bfb
40.217.123.252 0:0:0:0:0:ffff:28d9:7bfc
40.217.123.253 0:0:0:0:0:ffff:28d9:7bfd
40.217.123.254 0:0:0:0:0:ffff:28d9:7bfe
40.217.123.255 0:0:0:0:0:ffff:28d9:7bff


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.