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
6.171.123.1 0:0:0:0:0:ffff:6ab:7b01
6.171.123.2 0:0:0:0:0:ffff:6ab:7b02
6.171.123.3 0:0:0:0:0:ffff:6ab:7b03
6.171.123.4 0:0:0:0:0:ffff:6ab:7b04
6.171.123.5 0:0:0:0:0:ffff:6ab:7b05
6.171.123.6 0:0:0:0:0:ffff:6ab:7b06
6.171.123.7 0:0:0:0:0:ffff:6ab:7b07
6.171.123.8 0:0:0:0:0:ffff:6ab:7b08
6.171.123.9 0:0:0:0:0:ffff:6ab:7b09
6.171.123.10 0:0:0:0:0:ffff:6ab:7b0a
6.171.123.11 0:0:0:0:0:ffff:6ab:7b0b
6.171.123.12 0:0:0:0:0:ffff:6ab:7b0c
6.171.123.13 0:0:0:0:0:ffff:6ab:7b0d
6.171.123.14 0:0:0:0:0:ffff:6ab:7b0e
6.171.123.15 0:0:0:0:0:ffff:6ab:7b0f
6.171.123.16 0:0:0:0:0:ffff:6ab:7b10
6.171.123.17 0:0:0:0:0:ffff:6ab:7b11
6.171.123.18 0:0:0:0:0:ffff:6ab:7b12
6.171.123.19 0:0:0:0:0:ffff:6ab:7b13
6.171.123.20 0:0:0:0:0:ffff:6ab:7b14
6.171.123.21 0:0:0:0:0:ffff:6ab:7b15
6.171.123.22 0:0:0:0:0:ffff:6ab:7b16
6.171.123.23 0:0:0:0:0:ffff:6ab:7b17
6.171.123.24 0:0:0:0:0:ffff:6ab:7b18
6.171.123.25 0:0:0:0:0:ffff:6ab:7b19
6.171.123.26 0:0:0:0:0:ffff:6ab:7b1a
6.171.123.27 0:0:0:0:0:ffff:6ab:7b1b
6.171.123.28 0:0:0:0:0:ffff:6ab:7b1c
6.171.123.29 0:0:0:0:0:ffff:6ab:7b1d
6.171.123.30 0:0:0:0:0:ffff:6ab:7b1e
6.171.123.31 0:0:0:0:0:ffff:6ab:7b1f
6.171.123.32 0:0:0:0:0:ffff:6ab:7b20
6.171.123.33 0:0:0:0:0:ffff:6ab:7b21
6.171.123.34 0:0:0:0:0:ffff:6ab:7b22
6.171.123.35 0:0:0:0:0:ffff:6ab:7b23
6.171.123.36 0:0:0:0:0:ffff:6ab:7b24
6.171.123.37 0:0:0:0:0:ffff:6ab:7b25
6.171.123.38 0:0:0:0:0:ffff:6ab:7b26
6.171.123.39 0:0:0:0:0:ffff:6ab:7b27
6.171.123.40 0:0:0:0:0:ffff:6ab:7b28
6.171.123.41 0:0:0:0:0:ffff:6ab:7b29
6.171.123.42 0:0:0:0:0:ffff:6ab:7b2a
6.171.123.43 0:0:0:0:0:ffff:6ab:7b2b
6.171.123.44 0:0:0:0:0:ffff:6ab:7b2c
6.171.123.45 0:0:0:0:0:ffff:6ab:7b2d
6.171.123.46 0:0:0:0:0:ffff:6ab:7b2e
6.171.123.47 0:0:0:0:0:ffff:6ab:7b2f
6.171.123.48 0:0:0:0:0:ffff:6ab:7b30
6.171.123.49 0:0:0:0:0:ffff:6ab:7b31
6.171.123.50 0:0:0:0:0:ffff:6ab:7b32
6.171.123.51 0:0:0:0:0:ffff:6ab:7b33
6.171.123.52 0:0:0:0:0:ffff:6ab:7b34
6.171.123.53 0:0:0:0:0:ffff:6ab:7b35
6.171.123.54 0:0:0:0:0:ffff:6ab:7b36
6.171.123.55 0:0:0:0:0:ffff:6ab:7b37
6.171.123.56 0:0:0:0:0:ffff:6ab:7b38
6.171.123.57 0:0:0:0:0:ffff:6ab:7b39
6.171.123.58 0:0:0:0:0:ffff:6ab:7b3a
6.171.123.59 0:0:0:0:0:ffff:6ab:7b3b
6.171.123.60 0:0:0:0:0:ffff:6ab:7b3c


6.171.123.61 0:0:0:0:0:ffff:6ab:7b3d
6.171.123.62 0:0:0:0:0:ffff:6ab:7b3e
6.171.123.63 0:0:0:0:0:ffff:6ab:7b3f
6.171.123.64 0:0:0:0:0:ffff:6ab:7b40
6.171.123.65 0:0:0:0:0:ffff:6ab:7b41
6.171.123.66 0:0:0:0:0:ffff:6ab:7b42
6.171.123.67 0:0:0:0:0:ffff:6ab:7b43
6.171.123.68 0:0:0:0:0:ffff:6ab:7b44
6.171.123.69 0:0:0:0:0:ffff:6ab:7b45
6.171.123.70 0:0:0:0:0:ffff:6ab:7b46
6.171.123.71 0:0:0:0:0:ffff:6ab:7b47
6.171.123.72 0:0:0:0:0:ffff:6ab:7b48
6.171.123.73 0:0:0:0:0:ffff:6ab:7b49
6.171.123.74 0:0:0:0:0:ffff:6ab:7b4a
6.171.123.75 0:0:0:0:0:ffff:6ab:7b4b
6.171.123.76 0:0:0:0:0:ffff:6ab:7b4c
6.171.123.77 0:0:0:0:0:ffff:6ab:7b4d
6.171.123.78 0:0:0:0:0:ffff:6ab:7b4e
6.171.123.79 0:0:0:0:0:ffff:6ab:7b4f
6.171.123.80 0:0:0:0:0:ffff:6ab:7b50
6.171.123.81 0:0:0:0:0:ffff:6ab:7b51
6.171.123.82 0:0:0:0:0:ffff:6ab:7b52
6.171.123.83 0:0:0:0:0:ffff:6ab:7b53
6.171.123.84 0:0:0:0:0:ffff:6ab:7b54
6.171.123.85 0:0:0:0:0:ffff:6ab:7b55
6.171.123.86 0:0:0:0:0:ffff:6ab:7b56
6.171.123.87 0:0:0:0:0:ffff:6ab:7b57
6.171.123.88 0:0:0:0:0:ffff:6ab:7b58
6.171.123.89 0:0:0:0:0:ffff:6ab:7b59
6.171.123.90 0:0:0:0:0:ffff:6ab:7b5a
6.171.123.91 0:0:0:0:0:ffff:6ab:7b5b
6.171.123.92 0:0:0:0:0:ffff:6ab:7b5c
6.171.123.93 0:0:0:0:0:ffff:6ab:7b5d
6.171.123.94 0:0:0:0:0:ffff:6ab:7b5e
6.171.123.95 0:0:0:0:0:ffff:6ab:7b5f
6.171.123.96 0:0:0:0:0:ffff:6ab:7b60
6.171.123.97 0:0:0:0:0:ffff:6ab:7b61
6.171.123.98 0:0:0:0:0:ffff:6ab:7b62
6.171.123.99 0:0:0:0:0:ffff:6ab:7b63
6.171.123.100 0:0:0:0:0:ffff:6ab:7b64
6.171.123.101 0:0:0:0:0:ffff:6ab:7b65
6.171.123.102 0:0:0:0:0:ffff:6ab:7b66
6.171.123.103 0:0:0:0:0:ffff:6ab:7b67
6.171.123.104 0:0:0:0:0:ffff:6ab:7b68
6.171.123.105 0:0:0:0:0:ffff:6ab:7b69
6.171.123.106 0:0:0:0:0:ffff:6ab:7b6a
6.171.123.107 0:0:0:0:0:ffff:6ab:7b6b
6.171.123.108 0:0:0:0:0:ffff:6ab:7b6c
6.171.123.109 0:0:0:0:0:ffff:6ab:7b6d
6.171.123.110 0:0:0:0:0:ffff:6ab:7b6e
6.171.123.111 0:0:0:0:0:ffff:6ab:7b6f
6.171.123.112 0:0:0:0:0:ffff:6ab:7b70
6.171.123.113 0:0:0:0:0:ffff:6ab:7b71
6.171.123.114 0:0:0:0:0:ffff:6ab:7b72
6.171.123.115 0:0:0:0:0:ffff:6ab:7b73
6.171.123.116 0:0:0:0:0:ffff:6ab:7b74
6.171.123.117 0:0:0:0:0:ffff:6ab:7b75
6.171.123.118 0:0:0:0:0:ffff:6ab:7b76
6.171.123.119 0:0:0:0:0:ffff:6ab:7b77
6.171.123.120 0:0:0:0:0:ffff:6ab:7b78


6.171.123.121 0:0:0:0:0:ffff:6ab:7b79
6.171.123.122 0:0:0:0:0:ffff:6ab:7b7a
6.171.123.123 0:0:0:0:0:ffff:6ab:7b7b
6.171.123.124 0:0:0:0:0:ffff:6ab:7b7c
6.171.123.125 0:0:0:0:0:ffff:6ab:7b7d
6.171.123.126 0:0:0:0:0:ffff:6ab:7b7e
6.171.123.127 0:0:0:0:0:ffff:6ab:7b7f
6.171.123.128 0:0:0:0:0:ffff:6ab:7b80
6.171.123.129 0:0:0:0:0:ffff:6ab:7b81
6.171.123.130 0:0:0:0:0:ffff:6ab:7b82
6.171.123.131 0:0:0:0:0:ffff:6ab:7b83
6.171.123.132 0:0:0:0:0:ffff:6ab:7b84
6.171.123.133 0:0:0:0:0:ffff:6ab:7b85
6.171.123.134 0:0:0:0:0:ffff:6ab:7b86
6.171.123.135 0:0:0:0:0:ffff:6ab:7b87
6.171.123.136 0:0:0:0:0:ffff:6ab:7b88
6.171.123.137 0:0:0:0:0:ffff:6ab:7b89
6.171.123.138 0:0:0:0:0:ffff:6ab:7b8a
6.171.123.139 0:0:0:0:0:ffff:6ab:7b8b
6.171.123.140 0:0:0:0:0:ffff:6ab:7b8c
6.171.123.141 0:0:0:0:0:ffff:6ab:7b8d
6.171.123.142 0:0:0:0:0:ffff:6ab:7b8e
6.171.123.143 0:0:0:0:0:ffff:6ab:7b8f
6.171.123.144 0:0:0:0:0:ffff:6ab:7b90
6.171.123.145 0:0:0:0:0:ffff:6ab:7b91
6.171.123.146 0:0:0:0:0:ffff:6ab:7b92
6.171.123.147 0:0:0:0:0:ffff:6ab:7b93
6.171.123.148 0:0:0:0:0:ffff:6ab:7b94
6.171.123.149 0:0:0:0:0:ffff:6ab:7b95
6.171.123.150 0:0:0:0:0:ffff:6ab:7b96
6.171.123.151 0:0:0:0:0:ffff:6ab:7b97
6.171.123.152 0:0:0:0:0:ffff:6ab:7b98
6.171.123.153 0:0:0:0:0:ffff:6ab:7b99
6.171.123.154 0:0:0:0:0:ffff:6ab:7b9a
6.171.123.155 0:0:0:0:0:ffff:6ab:7b9b
6.171.123.156 0:0:0:0:0:ffff:6ab:7b9c
6.171.123.157 0:0:0:0:0:ffff:6ab:7b9d
6.171.123.158 0:0:0:0:0:ffff:6ab:7b9e
6.171.123.159 0:0:0:0:0:ffff:6ab:7b9f
6.171.123.160 0:0:0:0:0:ffff:6ab:7ba0
6.171.123.161 0:0:0:0:0:ffff:6ab:7ba1
6.171.123.162 0:0:0:0:0:ffff:6ab:7ba2
6.171.123.163 0:0:0:0:0:ffff:6ab:7ba3
6.171.123.164 0:0:0:0:0:ffff:6ab:7ba4
6.171.123.165 0:0:0:0:0:ffff:6ab:7ba5
6.171.123.166 0:0:0:0:0:ffff:6ab:7ba6
6.171.123.167 0:0:0:0:0:ffff:6ab:7ba7
6.171.123.168 0:0:0:0:0:ffff:6ab:7ba8
6.171.123.169 0:0:0:0:0:ffff:6ab:7ba9
6.171.123.170 0:0:0:0:0:ffff:6ab:7baa
6.171.123.171 0:0:0:0:0:ffff:6ab:7bab
6.171.123.172 0:0:0:0:0:ffff:6ab:7bac
6.171.123.173 0:0:0:0:0:ffff:6ab:7bad
6.171.123.174 0:0:0:0:0:ffff:6ab:7bae
6.171.123.175 0:0:0:0:0:ffff:6ab:7baf
6.171.123.176 0:0:0:0:0:ffff:6ab:7bb0
6.171.123.177 0:0:0:0:0:ffff:6ab:7bb1
6.171.123.178 0:0:0:0:0:ffff:6ab:7bb2
6.171.123.179 0:0:0:0:0:ffff:6ab:7bb3
6.171.123.180 0:0:0:0:0:ffff:6ab:7bb4


6.171.123.181 0:0:0:0:0:ffff:6ab:7bb5
6.171.123.182 0:0:0:0:0:ffff:6ab:7bb6
6.171.123.183 0:0:0:0:0:ffff:6ab:7bb7
6.171.123.184 0:0:0:0:0:ffff:6ab:7bb8
6.171.123.185 0:0:0:0:0:ffff:6ab:7bb9
6.171.123.186 0:0:0:0:0:ffff:6ab:7bba
6.171.123.187 0:0:0:0:0:ffff:6ab:7bbb
6.171.123.188 0:0:0:0:0:ffff:6ab:7bbc
6.171.123.189 0:0:0:0:0:ffff:6ab:7bbd
6.171.123.190 0:0:0:0:0:ffff:6ab:7bbe
6.171.123.191 0:0:0:0:0:ffff:6ab:7bbf
6.171.123.192 0:0:0:0:0:ffff:6ab:7bc0
6.171.123.193 0:0:0:0:0:ffff:6ab:7bc1
6.171.123.194 0:0:0:0:0:ffff:6ab:7bc2
6.171.123.195 0:0:0:0:0:ffff:6ab:7bc3
6.171.123.196 0:0:0:0:0:ffff:6ab:7bc4
6.171.123.197 0:0:0:0:0:ffff:6ab:7bc5
6.171.123.198 0:0:0:0:0:ffff:6ab:7bc6
6.171.123.199 0:0:0:0:0:ffff:6ab:7bc7
6.171.123.200 0:0:0:0:0:ffff:6ab:7bc8
6.171.123.201 0:0:0:0:0:ffff:6ab:7bc9
6.171.123.202 0:0:0:0:0:ffff:6ab:7bca
6.171.123.203 0:0:0:0:0:ffff:6ab:7bcb
6.171.123.204 0:0:0:0:0:ffff:6ab:7bcc
6.171.123.205 0:0:0:0:0:ffff:6ab:7bcd
6.171.123.206 0:0:0:0:0:ffff:6ab:7bce
6.171.123.207 0:0:0:0:0:ffff:6ab:7bcf
6.171.123.208 0:0:0:0:0:ffff:6ab:7bd0
6.171.123.209 0:0:0:0:0:ffff:6ab:7bd1
6.171.123.210 0:0:0:0:0:ffff:6ab:7bd2
6.171.123.211 0:0:0:0:0:ffff:6ab:7bd3
6.171.123.212 0:0:0:0:0:ffff:6ab:7bd4
6.171.123.213 0:0:0:0:0:ffff:6ab:7bd5
6.171.123.214 0:0:0:0:0:ffff:6ab:7bd6
6.171.123.215 0:0:0:0:0:ffff:6ab:7bd7
6.171.123.216 0:0:0:0:0:ffff:6ab:7bd8
6.171.123.217 0:0:0:0:0:ffff:6ab:7bd9
6.171.123.218 0:0:0:0:0:ffff:6ab:7bda
6.171.123.219 0:0:0:0:0:ffff:6ab:7bdb
6.171.123.220 0:0:0:0:0:ffff:6ab:7bdc
6.171.123.221 0:0:0:0:0:ffff:6ab:7bdd
6.171.123.222 0:0:0:0:0:ffff:6ab:7bde
6.171.123.223 0:0:0:0:0:ffff:6ab:7bdf
6.171.123.224 0:0:0:0:0:ffff:6ab:7be0
6.171.123.225 0:0:0:0:0:ffff:6ab:7be1
6.171.123.226 0:0:0:0:0:ffff:6ab:7be2
6.171.123.227 0:0:0:0:0:ffff:6ab:7be3
6.171.123.228 0:0:0:0:0:ffff:6ab:7be4
6.171.123.229 0:0:0:0:0:ffff:6ab:7be5
6.171.123.230 0:0:0:0:0:ffff:6ab:7be6
6.171.123.231 0:0:0:0:0:ffff:6ab:7be7
6.171.123.232 0:0:0:0:0:ffff:6ab:7be8
6.171.123.233 0:0:0:0:0:ffff:6ab:7be9
6.171.123.234 0:0:0:0:0:ffff:6ab:7bea
6.171.123.235 0:0:0:0:0:ffff:6ab:7beb
6.171.123.236 0:0:0:0:0:ffff:6ab:7bec
6.171.123.237 0:0:0:0:0:ffff:6ab:7bed
6.171.123.238 0:0:0:0:0:ffff:6ab:7bee
6.171.123.239 0:0:0:0:0:ffff:6ab:7bef
6.171.123.240 0:0:0:0:0:ffff:6ab:7bf0
6.171.123.241 0:0:0:0:0:ffff:6ab:7bf1
6.171.123.242 0:0:0:0:0:ffff:6ab:7bf2
6.171.123.243 0:0:0:0:0:ffff:6ab:7bf3
6.171.123.244 0:0:0:0:0:ffff:6ab:7bf4
6.171.123.245 0:0:0:0:0:ffff:6ab:7bf5
6.171.123.246 0:0:0:0:0:ffff:6ab:7bf6
6.171.123.247 0:0:0:0:0:ffff:6ab:7bf7
6.171.123.248 0:0:0:0:0:ffff:6ab:7bf8
6.171.123.249 0:0:0:0:0:ffff:6ab:7bf9
6.171.123.250 0:0:0:0:0:ffff:6ab:7bfa
6.171.123.251 0:0:0:0:0:ffff:6ab:7bfb
6.171.123.252 0:0:0:0:0:ffff:6ab:7bfc
6.171.123.253 0:0:0:0:0:ffff:6ab:7bfd
6.171.123.254 0:0:0:0:0:ffff:6ab:7bfe
6.171.123.255 0:0:0:0:0:ffff:6ab: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.