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
191.118.123.1 0:0:0:0:0:ffff:bf76:7b01
191.118.123.2 0:0:0:0:0:ffff:bf76:7b02
191.118.123.3 0:0:0:0:0:ffff:bf76:7b03
191.118.123.4 0:0:0:0:0:ffff:bf76:7b04
191.118.123.5 0:0:0:0:0:ffff:bf76:7b05
191.118.123.6 0:0:0:0:0:ffff:bf76:7b06
191.118.123.7 0:0:0:0:0:ffff:bf76:7b07
191.118.123.8 0:0:0:0:0:ffff:bf76:7b08
191.118.123.9 0:0:0:0:0:ffff:bf76:7b09
191.118.123.10 0:0:0:0:0:ffff:bf76:7b0a
191.118.123.11 0:0:0:0:0:ffff:bf76:7b0b
191.118.123.12 0:0:0:0:0:ffff:bf76:7b0c
191.118.123.13 0:0:0:0:0:ffff:bf76:7b0d
191.118.123.14 0:0:0:0:0:ffff:bf76:7b0e
191.118.123.15 0:0:0:0:0:ffff:bf76:7b0f
191.118.123.16 0:0:0:0:0:ffff:bf76:7b10
191.118.123.17 0:0:0:0:0:ffff:bf76:7b11
191.118.123.18 0:0:0:0:0:ffff:bf76:7b12
191.118.123.19 0:0:0:0:0:ffff:bf76:7b13
191.118.123.20 0:0:0:0:0:ffff:bf76:7b14
191.118.123.21 0:0:0:0:0:ffff:bf76:7b15
191.118.123.22 0:0:0:0:0:ffff:bf76:7b16
191.118.123.23 0:0:0:0:0:ffff:bf76:7b17
191.118.123.24 0:0:0:0:0:ffff:bf76:7b18
191.118.123.25 0:0:0:0:0:ffff:bf76:7b19
191.118.123.26 0:0:0:0:0:ffff:bf76:7b1a
191.118.123.27 0:0:0:0:0:ffff:bf76:7b1b
191.118.123.28 0:0:0:0:0:ffff:bf76:7b1c
191.118.123.29 0:0:0:0:0:ffff:bf76:7b1d
191.118.123.30 0:0:0:0:0:ffff:bf76:7b1e
191.118.123.31 0:0:0:0:0:ffff:bf76:7b1f
191.118.123.32 0:0:0:0:0:ffff:bf76:7b20
191.118.123.33 0:0:0:0:0:ffff:bf76:7b21
191.118.123.34 0:0:0:0:0:ffff:bf76:7b22
191.118.123.35 0:0:0:0:0:ffff:bf76:7b23
191.118.123.36 0:0:0:0:0:ffff:bf76:7b24
191.118.123.37 0:0:0:0:0:ffff:bf76:7b25
191.118.123.38 0:0:0:0:0:ffff:bf76:7b26
191.118.123.39 0:0:0:0:0:ffff:bf76:7b27
191.118.123.40 0:0:0:0:0:ffff:bf76:7b28
191.118.123.41 0:0:0:0:0:ffff:bf76:7b29
191.118.123.42 0:0:0:0:0:ffff:bf76:7b2a
191.118.123.43 0:0:0:0:0:ffff:bf76:7b2b
191.118.123.44 0:0:0:0:0:ffff:bf76:7b2c
191.118.123.45 0:0:0:0:0:ffff:bf76:7b2d
191.118.123.46 0:0:0:0:0:ffff:bf76:7b2e
191.118.123.47 0:0:0:0:0:ffff:bf76:7b2f
191.118.123.48 0:0:0:0:0:ffff:bf76:7b30
191.118.123.49 0:0:0:0:0:ffff:bf76:7b31
191.118.123.50 0:0:0:0:0:ffff:bf76:7b32
191.118.123.51 0:0:0:0:0:ffff:bf76:7b33
191.118.123.52 0:0:0:0:0:ffff:bf76:7b34
191.118.123.53 0:0:0:0:0:ffff:bf76:7b35
191.118.123.54 0:0:0:0:0:ffff:bf76:7b36
191.118.123.55 0:0:0:0:0:ffff:bf76:7b37
191.118.123.56 0:0:0:0:0:ffff:bf76:7b38
191.118.123.57 0:0:0:0:0:ffff:bf76:7b39
191.118.123.58 0:0:0:0:0:ffff:bf76:7b3a
191.118.123.59 0:0:0:0:0:ffff:bf76:7b3b
191.118.123.60 0:0:0:0:0:ffff:bf76:7b3c


191.118.123.61 0:0:0:0:0:ffff:bf76:7b3d
191.118.123.62 0:0:0:0:0:ffff:bf76:7b3e
191.118.123.63 0:0:0:0:0:ffff:bf76:7b3f
191.118.123.64 0:0:0:0:0:ffff:bf76:7b40
191.118.123.65 0:0:0:0:0:ffff:bf76:7b41
191.118.123.66 0:0:0:0:0:ffff:bf76:7b42
191.118.123.67 0:0:0:0:0:ffff:bf76:7b43
191.118.123.68 0:0:0:0:0:ffff:bf76:7b44
191.118.123.69 0:0:0:0:0:ffff:bf76:7b45
191.118.123.70 0:0:0:0:0:ffff:bf76:7b46
191.118.123.71 0:0:0:0:0:ffff:bf76:7b47
191.118.123.72 0:0:0:0:0:ffff:bf76:7b48
191.118.123.73 0:0:0:0:0:ffff:bf76:7b49
191.118.123.74 0:0:0:0:0:ffff:bf76:7b4a
191.118.123.75 0:0:0:0:0:ffff:bf76:7b4b
191.118.123.76 0:0:0:0:0:ffff:bf76:7b4c
191.118.123.77 0:0:0:0:0:ffff:bf76:7b4d
191.118.123.78 0:0:0:0:0:ffff:bf76:7b4e
191.118.123.79 0:0:0:0:0:ffff:bf76:7b4f
191.118.123.80 0:0:0:0:0:ffff:bf76:7b50
191.118.123.81 0:0:0:0:0:ffff:bf76:7b51
191.118.123.82 0:0:0:0:0:ffff:bf76:7b52
191.118.123.83 0:0:0:0:0:ffff:bf76:7b53
191.118.123.84 0:0:0:0:0:ffff:bf76:7b54
191.118.123.85 0:0:0:0:0:ffff:bf76:7b55
191.118.123.86 0:0:0:0:0:ffff:bf76:7b56
191.118.123.87 0:0:0:0:0:ffff:bf76:7b57
191.118.123.88 0:0:0:0:0:ffff:bf76:7b58
191.118.123.89 0:0:0:0:0:ffff:bf76:7b59
191.118.123.90 0:0:0:0:0:ffff:bf76:7b5a
191.118.123.91 0:0:0:0:0:ffff:bf76:7b5b
191.118.123.92 0:0:0:0:0:ffff:bf76:7b5c
191.118.123.93 0:0:0:0:0:ffff:bf76:7b5d
191.118.123.94 0:0:0:0:0:ffff:bf76:7b5e
191.118.123.95 0:0:0:0:0:ffff:bf76:7b5f
191.118.123.96 0:0:0:0:0:ffff:bf76:7b60
191.118.123.97 0:0:0:0:0:ffff:bf76:7b61
191.118.123.98 0:0:0:0:0:ffff:bf76:7b62
191.118.123.99 0:0:0:0:0:ffff:bf76:7b63
191.118.123.100 0:0:0:0:0:ffff:bf76:7b64
191.118.123.101 0:0:0:0:0:ffff:bf76:7b65
191.118.123.102 0:0:0:0:0:ffff:bf76:7b66
191.118.123.103 0:0:0:0:0:ffff:bf76:7b67
191.118.123.104 0:0:0:0:0:ffff:bf76:7b68
191.118.123.105 0:0:0:0:0:ffff:bf76:7b69
191.118.123.106 0:0:0:0:0:ffff:bf76:7b6a
191.118.123.107 0:0:0:0:0:ffff:bf76:7b6b
191.118.123.108 0:0:0:0:0:ffff:bf76:7b6c
191.118.123.109 0:0:0:0:0:ffff:bf76:7b6d
191.118.123.110 0:0:0:0:0:ffff:bf76:7b6e
191.118.123.111 0:0:0:0:0:ffff:bf76:7b6f
191.118.123.112 0:0:0:0:0:ffff:bf76:7b70
191.118.123.113 0:0:0:0:0:ffff:bf76:7b71
191.118.123.114 0:0:0:0:0:ffff:bf76:7b72
191.118.123.115 0:0:0:0:0:ffff:bf76:7b73
191.118.123.116 0:0:0:0:0:ffff:bf76:7b74
191.118.123.117 0:0:0:0:0:ffff:bf76:7b75
191.118.123.118 0:0:0:0:0:ffff:bf76:7b76
191.118.123.119 0:0:0:0:0:ffff:bf76:7b77
191.118.123.120 0:0:0:0:0:ffff:bf76:7b78


191.118.123.121 0:0:0:0:0:ffff:bf76:7b79
191.118.123.122 0:0:0:0:0:ffff:bf76:7b7a
191.118.123.123 0:0:0:0:0:ffff:bf76:7b7b
191.118.123.124 0:0:0:0:0:ffff:bf76:7b7c
191.118.123.125 0:0:0:0:0:ffff:bf76:7b7d
191.118.123.126 0:0:0:0:0:ffff:bf76:7b7e
191.118.123.127 0:0:0:0:0:ffff:bf76:7b7f
191.118.123.128 0:0:0:0:0:ffff:bf76:7b80
191.118.123.129 0:0:0:0:0:ffff:bf76:7b81
191.118.123.130 0:0:0:0:0:ffff:bf76:7b82
191.118.123.131 0:0:0:0:0:ffff:bf76:7b83
191.118.123.132 0:0:0:0:0:ffff:bf76:7b84
191.118.123.133 0:0:0:0:0:ffff:bf76:7b85
191.118.123.134 0:0:0:0:0:ffff:bf76:7b86
191.118.123.135 0:0:0:0:0:ffff:bf76:7b87
191.118.123.136 0:0:0:0:0:ffff:bf76:7b88
191.118.123.137 0:0:0:0:0:ffff:bf76:7b89
191.118.123.138 0:0:0:0:0:ffff:bf76:7b8a
191.118.123.139 0:0:0:0:0:ffff:bf76:7b8b
191.118.123.140 0:0:0:0:0:ffff:bf76:7b8c
191.118.123.141 0:0:0:0:0:ffff:bf76:7b8d
191.118.123.142 0:0:0:0:0:ffff:bf76:7b8e
191.118.123.143 0:0:0:0:0:ffff:bf76:7b8f
191.118.123.144 0:0:0:0:0:ffff:bf76:7b90
191.118.123.145 0:0:0:0:0:ffff:bf76:7b91
191.118.123.146 0:0:0:0:0:ffff:bf76:7b92
191.118.123.147 0:0:0:0:0:ffff:bf76:7b93
191.118.123.148 0:0:0:0:0:ffff:bf76:7b94
191.118.123.149 0:0:0:0:0:ffff:bf76:7b95
191.118.123.150 0:0:0:0:0:ffff:bf76:7b96
191.118.123.151 0:0:0:0:0:ffff:bf76:7b97
191.118.123.152 0:0:0:0:0:ffff:bf76:7b98
191.118.123.153 0:0:0:0:0:ffff:bf76:7b99
191.118.123.154 0:0:0:0:0:ffff:bf76:7b9a
191.118.123.155 0:0:0:0:0:ffff:bf76:7b9b
191.118.123.156 0:0:0:0:0:ffff:bf76:7b9c
191.118.123.157 0:0:0:0:0:ffff:bf76:7b9d
191.118.123.158 0:0:0:0:0:ffff:bf76:7b9e
191.118.123.159 0:0:0:0:0:ffff:bf76:7b9f
191.118.123.160 0:0:0:0:0:ffff:bf76:7ba0
191.118.123.161 0:0:0:0:0:ffff:bf76:7ba1
191.118.123.162 0:0:0:0:0:ffff:bf76:7ba2
191.118.123.163 0:0:0:0:0:ffff:bf76:7ba3
191.118.123.164 0:0:0:0:0:ffff:bf76:7ba4
191.118.123.165 0:0:0:0:0:ffff:bf76:7ba5
191.118.123.166 0:0:0:0:0:ffff:bf76:7ba6
191.118.123.167 0:0:0:0:0:ffff:bf76:7ba7
191.118.123.168 0:0:0:0:0:ffff:bf76:7ba8
191.118.123.169 0:0:0:0:0:ffff:bf76:7ba9
191.118.123.170 0:0:0:0:0:ffff:bf76:7baa
191.118.123.171 0:0:0:0:0:ffff:bf76:7bab
191.118.123.172 0:0:0:0:0:ffff:bf76:7bac
191.118.123.173 0:0:0:0:0:ffff:bf76:7bad
191.118.123.174 0:0:0:0:0:ffff:bf76:7bae
191.118.123.175 0:0:0:0:0:ffff:bf76:7baf
191.118.123.176 0:0:0:0:0:ffff:bf76:7bb0
191.118.123.177 0:0:0:0:0:ffff:bf76:7bb1
191.118.123.178 0:0:0:0:0:ffff:bf76:7bb2
191.118.123.179 0:0:0:0:0:ffff:bf76:7bb3
191.118.123.180 0:0:0:0:0:ffff:bf76:7bb4


191.118.123.181 0:0:0:0:0:ffff:bf76:7bb5
191.118.123.182 0:0:0:0:0:ffff:bf76:7bb6
191.118.123.183 0:0:0:0:0:ffff:bf76:7bb7
191.118.123.184 0:0:0:0:0:ffff:bf76:7bb8
191.118.123.185 0:0:0:0:0:ffff:bf76:7bb9
191.118.123.186 0:0:0:0:0:ffff:bf76:7bba
191.118.123.187 0:0:0:0:0:ffff:bf76:7bbb
191.118.123.188 0:0:0:0:0:ffff:bf76:7bbc
191.118.123.189 0:0:0:0:0:ffff:bf76:7bbd
191.118.123.190 0:0:0:0:0:ffff:bf76:7bbe
191.118.123.191 0:0:0:0:0:ffff:bf76:7bbf
191.118.123.192 0:0:0:0:0:ffff:bf76:7bc0
191.118.123.193 0:0:0:0:0:ffff:bf76:7bc1
191.118.123.194 0:0:0:0:0:ffff:bf76:7bc2
191.118.123.195 0:0:0:0:0:ffff:bf76:7bc3
191.118.123.196 0:0:0:0:0:ffff:bf76:7bc4
191.118.123.197 0:0:0:0:0:ffff:bf76:7bc5
191.118.123.198 0:0:0:0:0:ffff:bf76:7bc6
191.118.123.199 0:0:0:0:0:ffff:bf76:7bc7
191.118.123.200 0:0:0:0:0:ffff:bf76:7bc8
191.118.123.201 0:0:0:0:0:ffff:bf76:7bc9
191.118.123.202 0:0:0:0:0:ffff:bf76:7bca
191.118.123.203 0:0:0:0:0:ffff:bf76:7bcb
191.118.123.204 0:0:0:0:0:ffff:bf76:7bcc
191.118.123.205 0:0:0:0:0:ffff:bf76:7bcd
191.118.123.206 0:0:0:0:0:ffff:bf76:7bce
191.118.123.207 0:0:0:0:0:ffff:bf76:7bcf
191.118.123.208 0:0:0:0:0:ffff:bf76:7bd0
191.118.123.209 0:0:0:0:0:ffff:bf76:7bd1
191.118.123.210 0:0:0:0:0:ffff:bf76:7bd2
191.118.123.211 0:0:0:0:0:ffff:bf76:7bd3
191.118.123.212 0:0:0:0:0:ffff:bf76:7bd4
191.118.123.213 0:0:0:0:0:ffff:bf76:7bd5
191.118.123.214 0:0:0:0:0:ffff:bf76:7bd6
191.118.123.215 0:0:0:0:0:ffff:bf76:7bd7
191.118.123.216 0:0:0:0:0:ffff:bf76:7bd8
191.118.123.217 0:0:0:0:0:ffff:bf76:7bd9
191.118.123.218 0:0:0:0:0:ffff:bf76:7bda
191.118.123.219 0:0:0:0:0:ffff:bf76:7bdb
191.118.123.220 0:0:0:0:0:ffff:bf76:7bdc
191.118.123.221 0:0:0:0:0:ffff:bf76:7bdd
191.118.123.222 0:0:0:0:0:ffff:bf76:7bde
191.118.123.223 0:0:0:0:0:ffff:bf76:7bdf
191.118.123.224 0:0:0:0:0:ffff:bf76:7be0
191.118.123.225 0:0:0:0:0:ffff:bf76:7be1
191.118.123.226 0:0:0:0:0:ffff:bf76:7be2
191.118.123.227 0:0:0:0:0:ffff:bf76:7be3
191.118.123.228 0:0:0:0:0:ffff:bf76:7be4
191.118.123.229 0:0:0:0:0:ffff:bf76:7be5
191.118.123.230 0:0:0:0:0:ffff:bf76:7be6
191.118.123.231 0:0:0:0:0:ffff:bf76:7be7
191.118.123.232 0:0:0:0:0:ffff:bf76:7be8
191.118.123.233 0:0:0:0:0:ffff:bf76:7be9
191.118.123.234 0:0:0:0:0:ffff:bf76:7bea
191.118.123.235 0:0:0:0:0:ffff:bf76:7beb
191.118.123.236 0:0:0:0:0:ffff:bf76:7bec
191.118.123.237 0:0:0:0:0:ffff:bf76:7bed
191.118.123.238 0:0:0:0:0:ffff:bf76:7bee
191.118.123.239 0:0:0:0:0:ffff:bf76:7bef
191.118.123.240 0:0:0:0:0:ffff:bf76:7bf0
191.118.123.241 0:0:0:0:0:ffff:bf76:7bf1
191.118.123.242 0:0:0:0:0:ffff:bf76:7bf2
191.118.123.243 0:0:0:0:0:ffff:bf76:7bf3
191.118.123.244 0:0:0:0:0:ffff:bf76:7bf4
191.118.123.245 0:0:0:0:0:ffff:bf76:7bf5
191.118.123.246 0:0:0:0:0:ffff:bf76:7bf6
191.118.123.247 0:0:0:0:0:ffff:bf76:7bf7
191.118.123.248 0:0:0:0:0:ffff:bf76:7bf8
191.118.123.249 0:0:0:0:0:ffff:bf76:7bf9
191.118.123.250 0:0:0:0:0:ffff:bf76:7bfa
191.118.123.251 0:0:0:0:0:ffff:bf76:7bfb
191.118.123.252 0:0:0:0:0:ffff:bf76:7bfc
191.118.123.253 0:0:0:0:0:ffff:bf76:7bfd
191.118.123.254 0:0:0:0:0:ffff:bf76:7bfe
191.118.123.255 0:0:0:0:0:ffff:bf76:7bff


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.