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
15.71.123.1 0:0:0:0:0:ffff:f47:7b01
15.71.123.2 0:0:0:0:0:ffff:f47:7b02
15.71.123.3 0:0:0:0:0:ffff:f47:7b03
15.71.123.4 0:0:0:0:0:ffff:f47:7b04
15.71.123.5 0:0:0:0:0:ffff:f47:7b05
15.71.123.6 0:0:0:0:0:ffff:f47:7b06
15.71.123.7 0:0:0:0:0:ffff:f47:7b07
15.71.123.8 0:0:0:0:0:ffff:f47:7b08
15.71.123.9 0:0:0:0:0:ffff:f47:7b09
15.71.123.10 0:0:0:0:0:ffff:f47:7b0a
15.71.123.11 0:0:0:0:0:ffff:f47:7b0b
15.71.123.12 0:0:0:0:0:ffff:f47:7b0c
15.71.123.13 0:0:0:0:0:ffff:f47:7b0d
15.71.123.14 0:0:0:0:0:ffff:f47:7b0e
15.71.123.15 0:0:0:0:0:ffff:f47:7b0f
15.71.123.16 0:0:0:0:0:ffff:f47:7b10
15.71.123.17 0:0:0:0:0:ffff:f47:7b11
15.71.123.18 0:0:0:0:0:ffff:f47:7b12
15.71.123.19 0:0:0:0:0:ffff:f47:7b13
15.71.123.20 0:0:0:0:0:ffff:f47:7b14
15.71.123.21 0:0:0:0:0:ffff:f47:7b15
15.71.123.22 0:0:0:0:0:ffff:f47:7b16
15.71.123.23 0:0:0:0:0:ffff:f47:7b17
15.71.123.24 0:0:0:0:0:ffff:f47:7b18
15.71.123.25 0:0:0:0:0:ffff:f47:7b19
15.71.123.26 0:0:0:0:0:ffff:f47:7b1a
15.71.123.27 0:0:0:0:0:ffff:f47:7b1b
15.71.123.28 0:0:0:0:0:ffff:f47:7b1c
15.71.123.29 0:0:0:0:0:ffff:f47:7b1d
15.71.123.30 0:0:0:0:0:ffff:f47:7b1e
15.71.123.31 0:0:0:0:0:ffff:f47:7b1f
15.71.123.32 0:0:0:0:0:ffff:f47:7b20
15.71.123.33 0:0:0:0:0:ffff:f47:7b21
15.71.123.34 0:0:0:0:0:ffff:f47:7b22
15.71.123.35 0:0:0:0:0:ffff:f47:7b23
15.71.123.36 0:0:0:0:0:ffff:f47:7b24
15.71.123.37 0:0:0:0:0:ffff:f47:7b25
15.71.123.38 0:0:0:0:0:ffff:f47:7b26
15.71.123.39 0:0:0:0:0:ffff:f47:7b27
15.71.123.40 0:0:0:0:0:ffff:f47:7b28
15.71.123.41 0:0:0:0:0:ffff:f47:7b29
15.71.123.42 0:0:0:0:0:ffff:f47:7b2a
15.71.123.43 0:0:0:0:0:ffff:f47:7b2b
15.71.123.44 0:0:0:0:0:ffff:f47:7b2c
15.71.123.45 0:0:0:0:0:ffff:f47:7b2d
15.71.123.46 0:0:0:0:0:ffff:f47:7b2e
15.71.123.47 0:0:0:0:0:ffff:f47:7b2f
15.71.123.48 0:0:0:0:0:ffff:f47:7b30
15.71.123.49 0:0:0:0:0:ffff:f47:7b31
15.71.123.50 0:0:0:0:0:ffff:f47:7b32
15.71.123.51 0:0:0:0:0:ffff:f47:7b33
15.71.123.52 0:0:0:0:0:ffff:f47:7b34
15.71.123.53 0:0:0:0:0:ffff:f47:7b35
15.71.123.54 0:0:0:0:0:ffff:f47:7b36
15.71.123.55 0:0:0:0:0:ffff:f47:7b37
15.71.123.56 0:0:0:0:0:ffff:f47:7b38
15.71.123.57 0:0:0:0:0:ffff:f47:7b39
15.71.123.58 0:0:0:0:0:ffff:f47:7b3a
15.71.123.59 0:0:0:0:0:ffff:f47:7b3b
15.71.123.60 0:0:0:0:0:ffff:f47:7b3c


15.71.123.61 0:0:0:0:0:ffff:f47:7b3d
15.71.123.62 0:0:0:0:0:ffff:f47:7b3e
15.71.123.63 0:0:0:0:0:ffff:f47:7b3f
15.71.123.64 0:0:0:0:0:ffff:f47:7b40
15.71.123.65 0:0:0:0:0:ffff:f47:7b41
15.71.123.66 0:0:0:0:0:ffff:f47:7b42
15.71.123.67 0:0:0:0:0:ffff:f47:7b43
15.71.123.68 0:0:0:0:0:ffff:f47:7b44
15.71.123.69 0:0:0:0:0:ffff:f47:7b45
15.71.123.70 0:0:0:0:0:ffff:f47:7b46
15.71.123.71 0:0:0:0:0:ffff:f47:7b47
15.71.123.72 0:0:0:0:0:ffff:f47:7b48
15.71.123.73 0:0:0:0:0:ffff:f47:7b49
15.71.123.74 0:0:0:0:0:ffff:f47:7b4a
15.71.123.75 0:0:0:0:0:ffff:f47:7b4b
15.71.123.76 0:0:0:0:0:ffff:f47:7b4c
15.71.123.77 0:0:0:0:0:ffff:f47:7b4d
15.71.123.78 0:0:0:0:0:ffff:f47:7b4e
15.71.123.79 0:0:0:0:0:ffff:f47:7b4f
15.71.123.80 0:0:0:0:0:ffff:f47:7b50
15.71.123.81 0:0:0:0:0:ffff:f47:7b51
15.71.123.82 0:0:0:0:0:ffff:f47:7b52
15.71.123.83 0:0:0:0:0:ffff:f47:7b53
15.71.123.84 0:0:0:0:0:ffff:f47:7b54
15.71.123.85 0:0:0:0:0:ffff:f47:7b55
15.71.123.86 0:0:0:0:0:ffff:f47:7b56
15.71.123.87 0:0:0:0:0:ffff:f47:7b57
15.71.123.88 0:0:0:0:0:ffff:f47:7b58
15.71.123.89 0:0:0:0:0:ffff:f47:7b59
15.71.123.90 0:0:0:0:0:ffff:f47:7b5a
15.71.123.91 0:0:0:0:0:ffff:f47:7b5b
15.71.123.92 0:0:0:0:0:ffff:f47:7b5c
15.71.123.93 0:0:0:0:0:ffff:f47:7b5d
15.71.123.94 0:0:0:0:0:ffff:f47:7b5e
15.71.123.95 0:0:0:0:0:ffff:f47:7b5f
15.71.123.96 0:0:0:0:0:ffff:f47:7b60
15.71.123.97 0:0:0:0:0:ffff:f47:7b61
15.71.123.98 0:0:0:0:0:ffff:f47:7b62
15.71.123.99 0:0:0:0:0:ffff:f47:7b63
15.71.123.100 0:0:0:0:0:ffff:f47:7b64
15.71.123.101 0:0:0:0:0:ffff:f47:7b65
15.71.123.102 0:0:0:0:0:ffff:f47:7b66
15.71.123.103 0:0:0:0:0:ffff:f47:7b67
15.71.123.104 0:0:0:0:0:ffff:f47:7b68
15.71.123.105 0:0:0:0:0:ffff:f47:7b69
15.71.123.106 0:0:0:0:0:ffff:f47:7b6a
15.71.123.107 0:0:0:0:0:ffff:f47:7b6b
15.71.123.108 0:0:0:0:0:ffff:f47:7b6c
15.71.123.109 0:0:0:0:0:ffff:f47:7b6d
15.71.123.110 0:0:0:0:0:ffff:f47:7b6e
15.71.123.111 0:0:0:0:0:ffff:f47:7b6f
15.71.123.112 0:0:0:0:0:ffff:f47:7b70
15.71.123.113 0:0:0:0:0:ffff:f47:7b71
15.71.123.114 0:0:0:0:0:ffff:f47:7b72
15.71.123.115 0:0:0:0:0:ffff:f47:7b73
15.71.123.116 0:0:0:0:0:ffff:f47:7b74
15.71.123.117 0:0:0:0:0:ffff:f47:7b75
15.71.123.118 0:0:0:0:0:ffff:f47:7b76
15.71.123.119 0:0:0:0:0:ffff:f47:7b77
15.71.123.120 0:0:0:0:0:ffff:f47:7b78


15.71.123.121 0:0:0:0:0:ffff:f47:7b79
15.71.123.122 0:0:0:0:0:ffff:f47:7b7a
15.71.123.123 0:0:0:0:0:ffff:f47:7b7b
15.71.123.124 0:0:0:0:0:ffff:f47:7b7c
15.71.123.125 0:0:0:0:0:ffff:f47:7b7d
15.71.123.126 0:0:0:0:0:ffff:f47:7b7e
15.71.123.127 0:0:0:0:0:ffff:f47:7b7f
15.71.123.128 0:0:0:0:0:ffff:f47:7b80
15.71.123.129 0:0:0:0:0:ffff:f47:7b81
15.71.123.130 0:0:0:0:0:ffff:f47:7b82
15.71.123.131 0:0:0:0:0:ffff:f47:7b83
15.71.123.132 0:0:0:0:0:ffff:f47:7b84
15.71.123.133 0:0:0:0:0:ffff:f47:7b85
15.71.123.134 0:0:0:0:0:ffff:f47:7b86
15.71.123.135 0:0:0:0:0:ffff:f47:7b87
15.71.123.136 0:0:0:0:0:ffff:f47:7b88
15.71.123.137 0:0:0:0:0:ffff:f47:7b89
15.71.123.138 0:0:0:0:0:ffff:f47:7b8a
15.71.123.139 0:0:0:0:0:ffff:f47:7b8b
15.71.123.140 0:0:0:0:0:ffff:f47:7b8c
15.71.123.141 0:0:0:0:0:ffff:f47:7b8d
15.71.123.142 0:0:0:0:0:ffff:f47:7b8e
15.71.123.143 0:0:0:0:0:ffff:f47:7b8f
15.71.123.144 0:0:0:0:0:ffff:f47:7b90
15.71.123.145 0:0:0:0:0:ffff:f47:7b91
15.71.123.146 0:0:0:0:0:ffff:f47:7b92
15.71.123.147 0:0:0:0:0:ffff:f47:7b93
15.71.123.148 0:0:0:0:0:ffff:f47:7b94
15.71.123.149 0:0:0:0:0:ffff:f47:7b95
15.71.123.150 0:0:0:0:0:ffff:f47:7b96
15.71.123.151 0:0:0:0:0:ffff:f47:7b97
15.71.123.152 0:0:0:0:0:ffff:f47:7b98
15.71.123.153 0:0:0:0:0:ffff:f47:7b99
15.71.123.154 0:0:0:0:0:ffff:f47:7b9a
15.71.123.155 0:0:0:0:0:ffff:f47:7b9b
15.71.123.156 0:0:0:0:0:ffff:f47:7b9c
15.71.123.157 0:0:0:0:0:ffff:f47:7b9d
15.71.123.158 0:0:0:0:0:ffff:f47:7b9e
15.71.123.159 0:0:0:0:0:ffff:f47:7b9f
15.71.123.160 0:0:0:0:0:ffff:f47:7ba0
15.71.123.161 0:0:0:0:0:ffff:f47:7ba1
15.71.123.162 0:0:0:0:0:ffff:f47:7ba2
15.71.123.163 0:0:0:0:0:ffff:f47:7ba3
15.71.123.164 0:0:0:0:0:ffff:f47:7ba4
15.71.123.165 0:0:0:0:0:ffff:f47:7ba5
15.71.123.166 0:0:0:0:0:ffff:f47:7ba6
15.71.123.167 0:0:0:0:0:ffff:f47:7ba7
15.71.123.168 0:0:0:0:0:ffff:f47:7ba8
15.71.123.169 0:0:0:0:0:ffff:f47:7ba9
15.71.123.170 0:0:0:0:0:ffff:f47:7baa
15.71.123.171 0:0:0:0:0:ffff:f47:7bab
15.71.123.172 0:0:0:0:0:ffff:f47:7bac
15.71.123.173 0:0:0:0:0:ffff:f47:7bad
15.71.123.174 0:0:0:0:0:ffff:f47:7bae
15.71.123.175 0:0:0:0:0:ffff:f47:7baf
15.71.123.176 0:0:0:0:0:ffff:f47:7bb0
15.71.123.177 0:0:0:0:0:ffff:f47:7bb1
15.71.123.178 0:0:0:0:0:ffff:f47:7bb2
15.71.123.179 0:0:0:0:0:ffff:f47:7bb3
15.71.123.180 0:0:0:0:0:ffff:f47:7bb4


15.71.123.181 0:0:0:0:0:ffff:f47:7bb5
15.71.123.182 0:0:0:0:0:ffff:f47:7bb6
15.71.123.183 0:0:0:0:0:ffff:f47:7bb7
15.71.123.184 0:0:0:0:0:ffff:f47:7bb8
15.71.123.185 0:0:0:0:0:ffff:f47:7bb9
15.71.123.186 0:0:0:0:0:ffff:f47:7bba
15.71.123.187 0:0:0:0:0:ffff:f47:7bbb
15.71.123.188 0:0:0:0:0:ffff:f47:7bbc
15.71.123.189 0:0:0:0:0:ffff:f47:7bbd
15.71.123.190 0:0:0:0:0:ffff:f47:7bbe
15.71.123.191 0:0:0:0:0:ffff:f47:7bbf
15.71.123.192 0:0:0:0:0:ffff:f47:7bc0
15.71.123.193 0:0:0:0:0:ffff:f47:7bc1
15.71.123.194 0:0:0:0:0:ffff:f47:7bc2
15.71.123.195 0:0:0:0:0:ffff:f47:7bc3
15.71.123.196 0:0:0:0:0:ffff:f47:7bc4
15.71.123.197 0:0:0:0:0:ffff:f47:7bc5
15.71.123.198 0:0:0:0:0:ffff:f47:7bc6
15.71.123.199 0:0:0:0:0:ffff:f47:7bc7
15.71.123.200 0:0:0:0:0:ffff:f47:7bc8
15.71.123.201 0:0:0:0:0:ffff:f47:7bc9
15.71.123.202 0:0:0:0:0:ffff:f47:7bca
15.71.123.203 0:0:0:0:0:ffff:f47:7bcb
15.71.123.204 0:0:0:0:0:ffff:f47:7bcc
15.71.123.205 0:0:0:0:0:ffff:f47:7bcd
15.71.123.206 0:0:0:0:0:ffff:f47:7bce
15.71.123.207 0:0:0:0:0:ffff:f47:7bcf
15.71.123.208 0:0:0:0:0:ffff:f47:7bd0
15.71.123.209 0:0:0:0:0:ffff:f47:7bd1
15.71.123.210 0:0:0:0:0:ffff:f47:7bd2
15.71.123.211 0:0:0:0:0:ffff:f47:7bd3
15.71.123.212 0:0:0:0:0:ffff:f47:7bd4
15.71.123.213 0:0:0:0:0:ffff:f47:7bd5
15.71.123.214 0:0:0:0:0:ffff:f47:7bd6
15.71.123.215 0:0:0:0:0:ffff:f47:7bd7
15.71.123.216 0:0:0:0:0:ffff:f47:7bd8
15.71.123.217 0:0:0:0:0:ffff:f47:7bd9
15.71.123.218 0:0:0:0:0:ffff:f47:7bda
15.71.123.219 0:0:0:0:0:ffff:f47:7bdb
15.71.123.220 0:0:0:0:0:ffff:f47:7bdc
15.71.123.221 0:0:0:0:0:ffff:f47:7bdd
15.71.123.222 0:0:0:0:0:ffff:f47:7bde
15.71.123.223 0:0:0:0:0:ffff:f47:7bdf
15.71.123.224 0:0:0:0:0:ffff:f47:7be0
15.71.123.225 0:0:0:0:0:ffff:f47:7be1
15.71.123.226 0:0:0:0:0:ffff:f47:7be2
15.71.123.227 0:0:0:0:0:ffff:f47:7be3
15.71.123.228 0:0:0:0:0:ffff:f47:7be4
15.71.123.229 0:0:0:0:0:ffff:f47:7be5
15.71.123.230 0:0:0:0:0:ffff:f47:7be6
15.71.123.231 0:0:0:0:0:ffff:f47:7be7
15.71.123.232 0:0:0:0:0:ffff:f47:7be8
15.71.123.233 0:0:0:0:0:ffff:f47:7be9
15.71.123.234 0:0:0:0:0:ffff:f47:7bea
15.71.123.235 0:0:0:0:0:ffff:f47:7beb
15.71.123.236 0:0:0:0:0:ffff:f47:7bec
15.71.123.237 0:0:0:0:0:ffff:f47:7bed
15.71.123.238 0:0:0:0:0:ffff:f47:7bee
15.71.123.239 0:0:0:0:0:ffff:f47:7bef
15.71.123.240 0:0:0:0:0:ffff:f47:7bf0
15.71.123.241 0:0:0:0:0:ffff:f47:7bf1
15.71.123.242 0:0:0:0:0:ffff:f47:7bf2
15.71.123.243 0:0:0:0:0:ffff:f47:7bf3
15.71.123.244 0:0:0:0:0:ffff:f47:7bf4
15.71.123.245 0:0:0:0:0:ffff:f47:7bf5
15.71.123.246 0:0:0:0:0:ffff:f47:7bf6
15.71.123.247 0:0:0:0:0:ffff:f47:7bf7
15.71.123.248 0:0:0:0:0:ffff:f47:7bf8
15.71.123.249 0:0:0:0:0:ffff:f47:7bf9
15.71.123.250 0:0:0:0:0:ffff:f47:7bfa
15.71.123.251 0:0:0:0:0:ffff:f47:7bfb
15.71.123.252 0:0:0:0:0:ffff:f47:7bfc
15.71.123.253 0:0:0:0:0:ffff:f47:7bfd
15.71.123.254 0:0:0:0:0:ffff:f47:7bfe
15.71.123.255 0:0:0:0:0:ffff:f47:7bff


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.