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
123.215.139.1 0:0:0:0:0:ffff:7bd7:8b01
123.215.139.2 0:0:0:0:0:ffff:7bd7:8b02
123.215.139.3 0:0:0:0:0:ffff:7bd7:8b03
123.215.139.4 0:0:0:0:0:ffff:7bd7:8b04
123.215.139.5 0:0:0:0:0:ffff:7bd7:8b05
123.215.139.6 0:0:0:0:0:ffff:7bd7:8b06
123.215.139.7 0:0:0:0:0:ffff:7bd7:8b07
123.215.139.8 0:0:0:0:0:ffff:7bd7:8b08
123.215.139.9 0:0:0:0:0:ffff:7bd7:8b09
123.215.139.10 0:0:0:0:0:ffff:7bd7:8b0a
123.215.139.11 0:0:0:0:0:ffff:7bd7:8b0b
123.215.139.12 0:0:0:0:0:ffff:7bd7:8b0c
123.215.139.13 0:0:0:0:0:ffff:7bd7:8b0d
123.215.139.14 0:0:0:0:0:ffff:7bd7:8b0e
123.215.139.15 0:0:0:0:0:ffff:7bd7:8b0f
123.215.139.16 0:0:0:0:0:ffff:7bd7:8b10
123.215.139.17 0:0:0:0:0:ffff:7bd7:8b11
123.215.139.18 0:0:0:0:0:ffff:7bd7:8b12
123.215.139.19 0:0:0:0:0:ffff:7bd7:8b13
123.215.139.20 0:0:0:0:0:ffff:7bd7:8b14
123.215.139.21 0:0:0:0:0:ffff:7bd7:8b15
123.215.139.22 0:0:0:0:0:ffff:7bd7:8b16
123.215.139.23 0:0:0:0:0:ffff:7bd7:8b17
123.215.139.24 0:0:0:0:0:ffff:7bd7:8b18
123.215.139.25 0:0:0:0:0:ffff:7bd7:8b19
123.215.139.26 0:0:0:0:0:ffff:7bd7:8b1a
123.215.139.27 0:0:0:0:0:ffff:7bd7:8b1b
123.215.139.28 0:0:0:0:0:ffff:7bd7:8b1c
123.215.139.29 0:0:0:0:0:ffff:7bd7:8b1d
123.215.139.30 0:0:0:0:0:ffff:7bd7:8b1e
123.215.139.31 0:0:0:0:0:ffff:7bd7:8b1f
123.215.139.32 0:0:0:0:0:ffff:7bd7:8b20
123.215.139.33 0:0:0:0:0:ffff:7bd7:8b21
123.215.139.34 0:0:0:0:0:ffff:7bd7:8b22
123.215.139.35 0:0:0:0:0:ffff:7bd7:8b23
123.215.139.36 0:0:0:0:0:ffff:7bd7:8b24
123.215.139.37 0:0:0:0:0:ffff:7bd7:8b25
123.215.139.38 0:0:0:0:0:ffff:7bd7:8b26
123.215.139.39 0:0:0:0:0:ffff:7bd7:8b27
123.215.139.40 0:0:0:0:0:ffff:7bd7:8b28
123.215.139.41 0:0:0:0:0:ffff:7bd7:8b29
123.215.139.42 0:0:0:0:0:ffff:7bd7:8b2a
123.215.139.43 0:0:0:0:0:ffff:7bd7:8b2b
123.215.139.44 0:0:0:0:0:ffff:7bd7:8b2c
123.215.139.45 0:0:0:0:0:ffff:7bd7:8b2d
123.215.139.46 0:0:0:0:0:ffff:7bd7:8b2e
123.215.139.47 0:0:0:0:0:ffff:7bd7:8b2f
123.215.139.48 0:0:0:0:0:ffff:7bd7:8b30
123.215.139.49 0:0:0:0:0:ffff:7bd7:8b31
123.215.139.50 0:0:0:0:0:ffff:7bd7:8b32
123.215.139.51 0:0:0:0:0:ffff:7bd7:8b33
123.215.139.52 0:0:0:0:0:ffff:7bd7:8b34
123.215.139.53 0:0:0:0:0:ffff:7bd7:8b35
123.215.139.54 0:0:0:0:0:ffff:7bd7:8b36
123.215.139.55 0:0:0:0:0:ffff:7bd7:8b37
123.215.139.56 0:0:0:0:0:ffff:7bd7:8b38
123.215.139.57 0:0:0:0:0:ffff:7bd7:8b39
123.215.139.58 0:0:0:0:0:ffff:7bd7:8b3a
123.215.139.59 0:0:0:0:0:ffff:7bd7:8b3b
123.215.139.60 0:0:0:0:0:ffff:7bd7:8b3c


123.215.139.61 0:0:0:0:0:ffff:7bd7:8b3d
123.215.139.62 0:0:0:0:0:ffff:7bd7:8b3e
123.215.139.63 0:0:0:0:0:ffff:7bd7:8b3f
123.215.139.64 0:0:0:0:0:ffff:7bd7:8b40
123.215.139.65 0:0:0:0:0:ffff:7bd7:8b41
123.215.139.66 0:0:0:0:0:ffff:7bd7:8b42
123.215.139.67 0:0:0:0:0:ffff:7bd7:8b43
123.215.139.68 0:0:0:0:0:ffff:7bd7:8b44
123.215.139.69 0:0:0:0:0:ffff:7bd7:8b45
123.215.139.70 0:0:0:0:0:ffff:7bd7:8b46
123.215.139.71 0:0:0:0:0:ffff:7bd7:8b47
123.215.139.72 0:0:0:0:0:ffff:7bd7:8b48
123.215.139.73 0:0:0:0:0:ffff:7bd7:8b49
123.215.139.74 0:0:0:0:0:ffff:7bd7:8b4a
123.215.139.75 0:0:0:0:0:ffff:7bd7:8b4b
123.215.139.76 0:0:0:0:0:ffff:7bd7:8b4c
123.215.139.77 0:0:0:0:0:ffff:7bd7:8b4d
123.215.139.78 0:0:0:0:0:ffff:7bd7:8b4e
123.215.139.79 0:0:0:0:0:ffff:7bd7:8b4f
123.215.139.80 0:0:0:0:0:ffff:7bd7:8b50
123.215.139.81 0:0:0:0:0:ffff:7bd7:8b51
123.215.139.82 0:0:0:0:0:ffff:7bd7:8b52
123.215.139.83 0:0:0:0:0:ffff:7bd7:8b53
123.215.139.84 0:0:0:0:0:ffff:7bd7:8b54
123.215.139.85 0:0:0:0:0:ffff:7bd7:8b55
123.215.139.86 0:0:0:0:0:ffff:7bd7:8b56
123.215.139.87 0:0:0:0:0:ffff:7bd7:8b57
123.215.139.88 0:0:0:0:0:ffff:7bd7:8b58
123.215.139.89 0:0:0:0:0:ffff:7bd7:8b59
123.215.139.90 0:0:0:0:0:ffff:7bd7:8b5a
123.215.139.91 0:0:0:0:0:ffff:7bd7:8b5b
123.215.139.92 0:0:0:0:0:ffff:7bd7:8b5c
123.215.139.93 0:0:0:0:0:ffff:7bd7:8b5d
123.215.139.94 0:0:0:0:0:ffff:7bd7:8b5e
123.215.139.95 0:0:0:0:0:ffff:7bd7:8b5f
123.215.139.96 0:0:0:0:0:ffff:7bd7:8b60
123.215.139.97 0:0:0:0:0:ffff:7bd7:8b61
123.215.139.98 0:0:0:0:0:ffff:7bd7:8b62
123.215.139.99 0:0:0:0:0:ffff:7bd7:8b63
123.215.139.100 0:0:0:0:0:ffff:7bd7:8b64
123.215.139.101 0:0:0:0:0:ffff:7bd7:8b65
123.215.139.102 0:0:0:0:0:ffff:7bd7:8b66
123.215.139.103 0:0:0:0:0:ffff:7bd7:8b67
123.215.139.104 0:0:0:0:0:ffff:7bd7:8b68
123.215.139.105 0:0:0:0:0:ffff:7bd7:8b69
123.215.139.106 0:0:0:0:0:ffff:7bd7:8b6a
123.215.139.107 0:0:0:0:0:ffff:7bd7:8b6b
123.215.139.108 0:0:0:0:0:ffff:7bd7:8b6c
123.215.139.109 0:0:0:0:0:ffff:7bd7:8b6d
123.215.139.110 0:0:0:0:0:ffff:7bd7:8b6e
123.215.139.111 0:0:0:0:0:ffff:7bd7:8b6f
123.215.139.112 0:0:0:0:0:ffff:7bd7:8b70
123.215.139.113 0:0:0:0:0:ffff:7bd7:8b71
123.215.139.114 0:0:0:0:0:ffff:7bd7:8b72
123.215.139.115 0:0:0:0:0:ffff:7bd7:8b73
123.215.139.116 0:0:0:0:0:ffff:7bd7:8b74
123.215.139.117 0:0:0:0:0:ffff:7bd7:8b75
123.215.139.118 0:0:0:0:0:ffff:7bd7:8b76
123.215.139.119 0:0:0:0:0:ffff:7bd7:8b77
123.215.139.120 0:0:0:0:0:ffff:7bd7:8b78


123.215.139.121 0:0:0:0:0:ffff:7bd7:8b79
123.215.139.122 0:0:0:0:0:ffff:7bd7:8b7a
123.215.139.123 0:0:0:0:0:ffff:7bd7:8b7b
123.215.139.124 0:0:0:0:0:ffff:7bd7:8b7c
123.215.139.125 0:0:0:0:0:ffff:7bd7:8b7d
123.215.139.126 0:0:0:0:0:ffff:7bd7:8b7e
123.215.139.127 0:0:0:0:0:ffff:7bd7:8b7f
123.215.139.128 0:0:0:0:0:ffff:7bd7:8b80
123.215.139.129 0:0:0:0:0:ffff:7bd7:8b81
123.215.139.130 0:0:0:0:0:ffff:7bd7:8b82
123.215.139.131 0:0:0:0:0:ffff:7bd7:8b83
123.215.139.132 0:0:0:0:0:ffff:7bd7:8b84
123.215.139.133 0:0:0:0:0:ffff:7bd7:8b85
123.215.139.134 0:0:0:0:0:ffff:7bd7:8b86
123.215.139.135 0:0:0:0:0:ffff:7bd7:8b87
123.215.139.136 0:0:0:0:0:ffff:7bd7:8b88
123.215.139.137 0:0:0:0:0:ffff:7bd7:8b89
123.215.139.138 0:0:0:0:0:ffff:7bd7:8b8a
123.215.139.139 0:0:0:0:0:ffff:7bd7:8b8b
123.215.139.140 0:0:0:0:0:ffff:7bd7:8b8c
123.215.139.141 0:0:0:0:0:ffff:7bd7:8b8d
123.215.139.142 0:0:0:0:0:ffff:7bd7:8b8e
123.215.139.143 0:0:0:0:0:ffff:7bd7:8b8f
123.215.139.144 0:0:0:0:0:ffff:7bd7:8b90
123.215.139.145 0:0:0:0:0:ffff:7bd7:8b91
123.215.139.146 0:0:0:0:0:ffff:7bd7:8b92
123.215.139.147 0:0:0:0:0:ffff:7bd7:8b93
123.215.139.148 0:0:0:0:0:ffff:7bd7:8b94
123.215.139.149 0:0:0:0:0:ffff:7bd7:8b95
123.215.139.150 0:0:0:0:0:ffff:7bd7:8b96
123.215.139.151 0:0:0:0:0:ffff:7bd7:8b97
123.215.139.152 0:0:0:0:0:ffff:7bd7:8b98
123.215.139.153 0:0:0:0:0:ffff:7bd7:8b99
123.215.139.154 0:0:0:0:0:ffff:7bd7:8b9a
123.215.139.155 0:0:0:0:0:ffff:7bd7:8b9b
123.215.139.156 0:0:0:0:0:ffff:7bd7:8b9c
123.215.139.157 0:0:0:0:0:ffff:7bd7:8b9d
123.215.139.158 0:0:0:0:0:ffff:7bd7:8b9e
123.215.139.159 0:0:0:0:0:ffff:7bd7:8b9f
123.215.139.160 0:0:0:0:0:ffff:7bd7:8ba0
123.215.139.161 0:0:0:0:0:ffff:7bd7:8ba1
123.215.139.162 0:0:0:0:0:ffff:7bd7:8ba2
123.215.139.163 0:0:0:0:0:ffff:7bd7:8ba3
123.215.139.164 0:0:0:0:0:ffff:7bd7:8ba4
123.215.139.165 0:0:0:0:0:ffff:7bd7:8ba5
123.215.139.166 0:0:0:0:0:ffff:7bd7:8ba6
123.215.139.167 0:0:0:0:0:ffff:7bd7:8ba7
123.215.139.168 0:0:0:0:0:ffff:7bd7:8ba8
123.215.139.169 0:0:0:0:0:ffff:7bd7:8ba9
123.215.139.170 0:0:0:0:0:ffff:7bd7:8baa
123.215.139.171 0:0:0:0:0:ffff:7bd7:8bab
123.215.139.172 0:0:0:0:0:ffff:7bd7:8bac
123.215.139.173 0:0:0:0:0:ffff:7bd7:8bad
123.215.139.174 0:0:0:0:0:ffff:7bd7:8bae
123.215.139.175 0:0:0:0:0:ffff:7bd7:8baf
123.215.139.176 0:0:0:0:0:ffff:7bd7:8bb0
123.215.139.177 0:0:0:0:0:ffff:7bd7:8bb1
123.215.139.178 0:0:0:0:0:ffff:7bd7:8bb2
123.215.139.179 0:0:0:0:0:ffff:7bd7:8bb3
123.215.139.180 0:0:0:0:0:ffff:7bd7:8bb4


123.215.139.181 0:0:0:0:0:ffff:7bd7:8bb5
123.215.139.182 0:0:0:0:0:ffff:7bd7:8bb6
123.215.139.183 0:0:0:0:0:ffff:7bd7:8bb7
123.215.139.184 0:0:0:0:0:ffff:7bd7:8bb8
123.215.139.185 0:0:0:0:0:ffff:7bd7:8bb9
123.215.139.186 0:0:0:0:0:ffff:7bd7:8bba
123.215.139.187 0:0:0:0:0:ffff:7bd7:8bbb
123.215.139.188 0:0:0:0:0:ffff:7bd7:8bbc
123.215.139.189 0:0:0:0:0:ffff:7bd7:8bbd
123.215.139.190 0:0:0:0:0:ffff:7bd7:8bbe
123.215.139.191 0:0:0:0:0:ffff:7bd7:8bbf
123.215.139.192 0:0:0:0:0:ffff:7bd7:8bc0
123.215.139.193 0:0:0:0:0:ffff:7bd7:8bc1
123.215.139.194 0:0:0:0:0:ffff:7bd7:8bc2
123.215.139.195 0:0:0:0:0:ffff:7bd7:8bc3
123.215.139.196 0:0:0:0:0:ffff:7bd7:8bc4
123.215.139.197 0:0:0:0:0:ffff:7bd7:8bc5
123.215.139.198 0:0:0:0:0:ffff:7bd7:8bc6
123.215.139.199 0:0:0:0:0:ffff:7bd7:8bc7
123.215.139.200 0:0:0:0:0:ffff:7bd7:8bc8
123.215.139.201 0:0:0:0:0:ffff:7bd7:8bc9
123.215.139.202 0:0:0:0:0:ffff:7bd7:8bca
123.215.139.203 0:0:0:0:0:ffff:7bd7:8bcb
123.215.139.204 0:0:0:0:0:ffff:7bd7:8bcc
123.215.139.205 0:0:0:0:0:ffff:7bd7:8bcd
123.215.139.206 0:0:0:0:0:ffff:7bd7:8bce
123.215.139.207 0:0:0:0:0:ffff:7bd7:8bcf
123.215.139.208 0:0:0:0:0:ffff:7bd7:8bd0
123.215.139.209 0:0:0:0:0:ffff:7bd7:8bd1
123.215.139.210 0:0:0:0:0:ffff:7bd7:8bd2
123.215.139.211 0:0:0:0:0:ffff:7bd7:8bd3
123.215.139.212 0:0:0:0:0:ffff:7bd7:8bd4
123.215.139.213 0:0:0:0:0:ffff:7bd7:8bd5
123.215.139.214 0:0:0:0:0:ffff:7bd7:8bd6
123.215.139.215 0:0:0:0:0:ffff:7bd7:8bd7
123.215.139.216 0:0:0:0:0:ffff:7bd7:8bd8
123.215.139.217 0:0:0:0:0:ffff:7bd7:8bd9
123.215.139.218 0:0:0:0:0:ffff:7bd7:8bda
123.215.139.219 0:0:0:0:0:ffff:7bd7:8bdb
123.215.139.220 0:0:0:0:0:ffff:7bd7:8bdc
123.215.139.221 0:0:0:0:0:ffff:7bd7:8bdd
123.215.139.222 0:0:0:0:0:ffff:7bd7:8bde
123.215.139.223 0:0:0:0:0:ffff:7bd7:8bdf
123.215.139.224 0:0:0:0:0:ffff:7bd7:8be0
123.215.139.225 0:0:0:0:0:ffff:7bd7:8be1
123.215.139.226 0:0:0:0:0:ffff:7bd7:8be2
123.215.139.227 0:0:0:0:0:ffff:7bd7:8be3
123.215.139.228 0:0:0:0:0:ffff:7bd7:8be4
123.215.139.229 0:0:0:0:0:ffff:7bd7:8be5
123.215.139.230 0:0:0:0:0:ffff:7bd7:8be6
123.215.139.231 0:0:0:0:0:ffff:7bd7:8be7
123.215.139.232 0:0:0:0:0:ffff:7bd7:8be8
123.215.139.233 0:0:0:0:0:ffff:7bd7:8be9
123.215.139.234 0:0:0:0:0:ffff:7bd7:8bea
123.215.139.235 0:0:0:0:0:ffff:7bd7:8beb
123.215.139.236 0:0:0:0:0:ffff:7bd7:8bec
123.215.139.237 0:0:0:0:0:ffff:7bd7:8bed
123.215.139.238 0:0:0:0:0:ffff:7bd7:8bee
123.215.139.239 0:0:0:0:0:ffff:7bd7:8bef
123.215.139.240 0:0:0:0:0:ffff:7bd7:8bf0
123.215.139.241 0:0:0:0:0:ffff:7bd7:8bf1
123.215.139.242 0:0:0:0:0:ffff:7bd7:8bf2
123.215.139.243 0:0:0:0:0:ffff:7bd7:8bf3
123.215.139.244 0:0:0:0:0:ffff:7bd7:8bf4
123.215.139.245 0:0:0:0:0:ffff:7bd7:8bf5
123.215.139.246 0:0:0:0:0:ffff:7bd7:8bf6
123.215.139.247 0:0:0:0:0:ffff:7bd7:8bf7
123.215.139.248 0:0:0:0:0:ffff:7bd7:8bf8
123.215.139.249 0:0:0:0:0:ffff:7bd7:8bf9
123.215.139.250 0:0:0:0:0:ffff:7bd7:8bfa
123.215.139.251 0:0:0:0:0:ffff:7bd7:8bfb
123.215.139.252 0:0:0:0:0:ffff:7bd7:8bfc
123.215.139.253 0:0:0:0:0:ffff:7bd7:8bfd
123.215.139.254 0:0:0:0:0:ffff:7bd7:8bfe
123.215.139.255 0:0:0:0:0:ffff:7bd7:8bff


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.