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
2.139.123.1 0:0:0:0:0:ffff:28b:7b01
2.139.123.2 0:0:0:0:0:ffff:28b:7b02
2.139.123.3 0:0:0:0:0:ffff:28b:7b03
2.139.123.4 0:0:0:0:0:ffff:28b:7b04
2.139.123.5 0:0:0:0:0:ffff:28b:7b05
2.139.123.6 0:0:0:0:0:ffff:28b:7b06
2.139.123.7 0:0:0:0:0:ffff:28b:7b07
2.139.123.8 0:0:0:0:0:ffff:28b:7b08
2.139.123.9 0:0:0:0:0:ffff:28b:7b09
2.139.123.10 0:0:0:0:0:ffff:28b:7b0a
2.139.123.11 0:0:0:0:0:ffff:28b:7b0b
2.139.123.12 0:0:0:0:0:ffff:28b:7b0c
2.139.123.13 0:0:0:0:0:ffff:28b:7b0d
2.139.123.14 0:0:0:0:0:ffff:28b:7b0e
2.139.123.15 0:0:0:0:0:ffff:28b:7b0f
2.139.123.16 0:0:0:0:0:ffff:28b:7b10
2.139.123.17 0:0:0:0:0:ffff:28b:7b11
2.139.123.18 0:0:0:0:0:ffff:28b:7b12
2.139.123.19 0:0:0:0:0:ffff:28b:7b13
2.139.123.20 0:0:0:0:0:ffff:28b:7b14
2.139.123.21 0:0:0:0:0:ffff:28b:7b15
2.139.123.22 0:0:0:0:0:ffff:28b:7b16
2.139.123.23 0:0:0:0:0:ffff:28b:7b17
2.139.123.24 0:0:0:0:0:ffff:28b:7b18
2.139.123.25 0:0:0:0:0:ffff:28b:7b19
2.139.123.26 0:0:0:0:0:ffff:28b:7b1a
2.139.123.27 0:0:0:0:0:ffff:28b:7b1b
2.139.123.28 0:0:0:0:0:ffff:28b:7b1c
2.139.123.29 0:0:0:0:0:ffff:28b:7b1d
2.139.123.30 0:0:0:0:0:ffff:28b:7b1e
2.139.123.31 0:0:0:0:0:ffff:28b:7b1f
2.139.123.32 0:0:0:0:0:ffff:28b:7b20
2.139.123.33 0:0:0:0:0:ffff:28b:7b21
2.139.123.34 0:0:0:0:0:ffff:28b:7b22
2.139.123.35 0:0:0:0:0:ffff:28b:7b23
2.139.123.36 0:0:0:0:0:ffff:28b:7b24
2.139.123.37 0:0:0:0:0:ffff:28b:7b25
2.139.123.38 0:0:0:0:0:ffff:28b:7b26
2.139.123.39 0:0:0:0:0:ffff:28b:7b27
2.139.123.40 0:0:0:0:0:ffff:28b:7b28
2.139.123.41 0:0:0:0:0:ffff:28b:7b29
2.139.123.42 0:0:0:0:0:ffff:28b:7b2a
2.139.123.43 0:0:0:0:0:ffff:28b:7b2b
2.139.123.44 0:0:0:0:0:ffff:28b:7b2c
2.139.123.45 0:0:0:0:0:ffff:28b:7b2d
2.139.123.46 0:0:0:0:0:ffff:28b:7b2e
2.139.123.47 0:0:0:0:0:ffff:28b:7b2f
2.139.123.48 0:0:0:0:0:ffff:28b:7b30
2.139.123.49 0:0:0:0:0:ffff:28b:7b31
2.139.123.50 0:0:0:0:0:ffff:28b:7b32
2.139.123.51 0:0:0:0:0:ffff:28b:7b33
2.139.123.52 0:0:0:0:0:ffff:28b:7b34
2.139.123.53 0:0:0:0:0:ffff:28b:7b35
2.139.123.54 0:0:0:0:0:ffff:28b:7b36
2.139.123.55 0:0:0:0:0:ffff:28b:7b37
2.139.123.56 0:0:0:0:0:ffff:28b:7b38
2.139.123.57 0:0:0:0:0:ffff:28b:7b39
2.139.123.58 0:0:0:0:0:ffff:28b:7b3a
2.139.123.59 0:0:0:0:0:ffff:28b:7b3b
2.139.123.60 0:0:0:0:0:ffff:28b:7b3c


2.139.123.61 0:0:0:0:0:ffff:28b:7b3d
2.139.123.62 0:0:0:0:0:ffff:28b:7b3e
2.139.123.63 0:0:0:0:0:ffff:28b:7b3f
2.139.123.64 0:0:0:0:0:ffff:28b:7b40
2.139.123.65 0:0:0:0:0:ffff:28b:7b41
2.139.123.66 0:0:0:0:0:ffff:28b:7b42
2.139.123.67 0:0:0:0:0:ffff:28b:7b43
2.139.123.68 0:0:0:0:0:ffff:28b:7b44
2.139.123.69 0:0:0:0:0:ffff:28b:7b45
2.139.123.70 0:0:0:0:0:ffff:28b:7b46
2.139.123.71 0:0:0:0:0:ffff:28b:7b47
2.139.123.72 0:0:0:0:0:ffff:28b:7b48
2.139.123.73 0:0:0:0:0:ffff:28b:7b49
2.139.123.74 0:0:0:0:0:ffff:28b:7b4a
2.139.123.75 0:0:0:0:0:ffff:28b:7b4b
2.139.123.76 0:0:0:0:0:ffff:28b:7b4c
2.139.123.77 0:0:0:0:0:ffff:28b:7b4d
2.139.123.78 0:0:0:0:0:ffff:28b:7b4e
2.139.123.79 0:0:0:0:0:ffff:28b:7b4f
2.139.123.80 0:0:0:0:0:ffff:28b:7b50
2.139.123.81 0:0:0:0:0:ffff:28b:7b51
2.139.123.82 0:0:0:0:0:ffff:28b:7b52
2.139.123.83 0:0:0:0:0:ffff:28b:7b53
2.139.123.84 0:0:0:0:0:ffff:28b:7b54
2.139.123.85 0:0:0:0:0:ffff:28b:7b55
2.139.123.86 0:0:0:0:0:ffff:28b:7b56
2.139.123.87 0:0:0:0:0:ffff:28b:7b57
2.139.123.88 0:0:0:0:0:ffff:28b:7b58
2.139.123.89 0:0:0:0:0:ffff:28b:7b59
2.139.123.90 0:0:0:0:0:ffff:28b:7b5a
2.139.123.91 0:0:0:0:0:ffff:28b:7b5b
2.139.123.92 0:0:0:0:0:ffff:28b:7b5c
2.139.123.93 0:0:0:0:0:ffff:28b:7b5d
2.139.123.94 0:0:0:0:0:ffff:28b:7b5e
2.139.123.95 0:0:0:0:0:ffff:28b:7b5f
2.139.123.96 0:0:0:0:0:ffff:28b:7b60
2.139.123.97 0:0:0:0:0:ffff:28b:7b61
2.139.123.98 0:0:0:0:0:ffff:28b:7b62
2.139.123.99 0:0:0:0:0:ffff:28b:7b63
2.139.123.100 0:0:0:0:0:ffff:28b:7b64
2.139.123.101 0:0:0:0:0:ffff:28b:7b65
2.139.123.102 0:0:0:0:0:ffff:28b:7b66
2.139.123.103 0:0:0:0:0:ffff:28b:7b67
2.139.123.104 0:0:0:0:0:ffff:28b:7b68
2.139.123.105 0:0:0:0:0:ffff:28b:7b69
2.139.123.106 0:0:0:0:0:ffff:28b:7b6a
2.139.123.107 0:0:0:0:0:ffff:28b:7b6b
2.139.123.108 0:0:0:0:0:ffff:28b:7b6c
2.139.123.109 0:0:0:0:0:ffff:28b:7b6d
2.139.123.110 0:0:0:0:0:ffff:28b:7b6e
2.139.123.111 0:0:0:0:0:ffff:28b:7b6f
2.139.123.112 0:0:0:0:0:ffff:28b:7b70
2.139.123.113 0:0:0:0:0:ffff:28b:7b71
2.139.123.114 0:0:0:0:0:ffff:28b:7b72
2.139.123.115 0:0:0:0:0:ffff:28b:7b73
2.139.123.116 0:0:0:0:0:ffff:28b:7b74
2.139.123.117 0:0:0:0:0:ffff:28b:7b75
2.139.123.118 0:0:0:0:0:ffff:28b:7b76
2.139.123.119 0:0:0:0:0:ffff:28b:7b77
2.139.123.120 0:0:0:0:0:ffff:28b:7b78


2.139.123.121 0:0:0:0:0:ffff:28b:7b79
2.139.123.122 0:0:0:0:0:ffff:28b:7b7a
2.139.123.123 0:0:0:0:0:ffff:28b:7b7b
2.139.123.124 0:0:0:0:0:ffff:28b:7b7c
2.139.123.125 0:0:0:0:0:ffff:28b:7b7d
2.139.123.126 0:0:0:0:0:ffff:28b:7b7e
2.139.123.127 0:0:0:0:0:ffff:28b:7b7f
2.139.123.128 0:0:0:0:0:ffff:28b:7b80
2.139.123.129 0:0:0:0:0:ffff:28b:7b81
2.139.123.130 0:0:0:0:0:ffff:28b:7b82
2.139.123.131 0:0:0:0:0:ffff:28b:7b83
2.139.123.132 0:0:0:0:0:ffff:28b:7b84
2.139.123.133 0:0:0:0:0:ffff:28b:7b85
2.139.123.134 0:0:0:0:0:ffff:28b:7b86
2.139.123.135 0:0:0:0:0:ffff:28b:7b87
2.139.123.136 0:0:0:0:0:ffff:28b:7b88
2.139.123.137 0:0:0:0:0:ffff:28b:7b89
2.139.123.138 0:0:0:0:0:ffff:28b:7b8a
2.139.123.139 0:0:0:0:0:ffff:28b:7b8b
2.139.123.140 0:0:0:0:0:ffff:28b:7b8c
2.139.123.141 0:0:0:0:0:ffff:28b:7b8d
2.139.123.142 0:0:0:0:0:ffff:28b:7b8e
2.139.123.143 0:0:0:0:0:ffff:28b:7b8f
2.139.123.144 0:0:0:0:0:ffff:28b:7b90
2.139.123.145 0:0:0:0:0:ffff:28b:7b91
2.139.123.146 0:0:0:0:0:ffff:28b:7b92
2.139.123.147 0:0:0:0:0:ffff:28b:7b93
2.139.123.148 0:0:0:0:0:ffff:28b:7b94
2.139.123.149 0:0:0:0:0:ffff:28b:7b95
2.139.123.150 0:0:0:0:0:ffff:28b:7b96
2.139.123.151 0:0:0:0:0:ffff:28b:7b97
2.139.123.152 0:0:0:0:0:ffff:28b:7b98
2.139.123.153 0:0:0:0:0:ffff:28b:7b99
2.139.123.154 0:0:0:0:0:ffff:28b:7b9a
2.139.123.155 0:0:0:0:0:ffff:28b:7b9b
2.139.123.156 0:0:0:0:0:ffff:28b:7b9c
2.139.123.157 0:0:0:0:0:ffff:28b:7b9d
2.139.123.158 0:0:0:0:0:ffff:28b:7b9e
2.139.123.159 0:0:0:0:0:ffff:28b:7b9f
2.139.123.160 0:0:0:0:0:ffff:28b:7ba0
2.139.123.161 0:0:0:0:0:ffff:28b:7ba1
2.139.123.162 0:0:0:0:0:ffff:28b:7ba2
2.139.123.163 0:0:0:0:0:ffff:28b:7ba3
2.139.123.164 0:0:0:0:0:ffff:28b:7ba4
2.139.123.165 0:0:0:0:0:ffff:28b:7ba5
2.139.123.166 0:0:0:0:0:ffff:28b:7ba6
2.139.123.167 0:0:0:0:0:ffff:28b:7ba7
2.139.123.168 0:0:0:0:0:ffff:28b:7ba8
2.139.123.169 0:0:0:0:0:ffff:28b:7ba9
2.139.123.170 0:0:0:0:0:ffff:28b:7baa
2.139.123.171 0:0:0:0:0:ffff:28b:7bab
2.139.123.172 0:0:0:0:0:ffff:28b:7bac
2.139.123.173 0:0:0:0:0:ffff:28b:7bad
2.139.123.174 0:0:0:0:0:ffff:28b:7bae
2.139.123.175 0:0:0:0:0:ffff:28b:7baf
2.139.123.176 0:0:0:0:0:ffff:28b:7bb0
2.139.123.177 0:0:0:0:0:ffff:28b:7bb1
2.139.123.178 0:0:0:0:0:ffff:28b:7bb2
2.139.123.179 0:0:0:0:0:ffff:28b:7bb3
2.139.123.180 0:0:0:0:0:ffff:28b:7bb4


2.139.123.181 0:0:0:0:0:ffff:28b:7bb5
2.139.123.182 0:0:0:0:0:ffff:28b:7bb6
2.139.123.183 0:0:0:0:0:ffff:28b:7bb7
2.139.123.184 0:0:0:0:0:ffff:28b:7bb8
2.139.123.185 0:0:0:0:0:ffff:28b:7bb9
2.139.123.186 0:0:0:0:0:ffff:28b:7bba
2.139.123.187 0:0:0:0:0:ffff:28b:7bbb
2.139.123.188 0:0:0:0:0:ffff:28b:7bbc
2.139.123.189 0:0:0:0:0:ffff:28b:7bbd
2.139.123.190 0:0:0:0:0:ffff:28b:7bbe
2.139.123.191 0:0:0:0:0:ffff:28b:7bbf
2.139.123.192 0:0:0:0:0:ffff:28b:7bc0
2.139.123.193 0:0:0:0:0:ffff:28b:7bc1
2.139.123.194 0:0:0:0:0:ffff:28b:7bc2
2.139.123.195 0:0:0:0:0:ffff:28b:7bc3
2.139.123.196 0:0:0:0:0:ffff:28b:7bc4
2.139.123.197 0:0:0:0:0:ffff:28b:7bc5
2.139.123.198 0:0:0:0:0:ffff:28b:7bc6
2.139.123.199 0:0:0:0:0:ffff:28b:7bc7
2.139.123.200 0:0:0:0:0:ffff:28b:7bc8
2.139.123.201 0:0:0:0:0:ffff:28b:7bc9
2.139.123.202 0:0:0:0:0:ffff:28b:7bca
2.139.123.203 0:0:0:0:0:ffff:28b:7bcb
2.139.123.204 0:0:0:0:0:ffff:28b:7bcc
2.139.123.205 0:0:0:0:0:ffff:28b:7bcd
2.139.123.206 0:0:0:0:0:ffff:28b:7bce
2.139.123.207 0:0:0:0:0:ffff:28b:7bcf
2.139.123.208 0:0:0:0:0:ffff:28b:7bd0
2.139.123.209 0:0:0:0:0:ffff:28b:7bd1
2.139.123.210 0:0:0:0:0:ffff:28b:7bd2
2.139.123.211 0:0:0:0:0:ffff:28b:7bd3
2.139.123.212 0:0:0:0:0:ffff:28b:7bd4
2.139.123.213 0:0:0:0:0:ffff:28b:7bd5
2.139.123.214 0:0:0:0:0:ffff:28b:7bd6
2.139.123.215 0:0:0:0:0:ffff:28b:7bd7
2.139.123.216 0:0:0:0:0:ffff:28b:7bd8
2.139.123.217 0:0:0:0:0:ffff:28b:7bd9
2.139.123.218 0:0:0:0:0:ffff:28b:7bda
2.139.123.219 0:0:0:0:0:ffff:28b:7bdb
2.139.123.220 0:0:0:0:0:ffff:28b:7bdc
2.139.123.221 0:0:0:0:0:ffff:28b:7bdd
2.139.123.222 0:0:0:0:0:ffff:28b:7bde
2.139.123.223 0:0:0:0:0:ffff:28b:7bdf
2.139.123.224 0:0:0:0:0:ffff:28b:7be0
2.139.123.225 0:0:0:0:0:ffff:28b:7be1
2.139.123.226 0:0:0:0:0:ffff:28b:7be2
2.139.123.227 0:0:0:0:0:ffff:28b:7be3
2.139.123.228 0:0:0:0:0:ffff:28b:7be4
2.139.123.229 0:0:0:0:0:ffff:28b:7be5
2.139.123.230 0:0:0:0:0:ffff:28b:7be6
2.139.123.231 0:0:0:0:0:ffff:28b:7be7
2.139.123.232 0:0:0:0:0:ffff:28b:7be8
2.139.123.233 0:0:0:0:0:ffff:28b:7be9
2.139.123.234 0:0:0:0:0:ffff:28b:7bea
2.139.123.235 0:0:0:0:0:ffff:28b:7beb
2.139.123.236 0:0:0:0:0:ffff:28b:7bec
2.139.123.237 0:0:0:0:0:ffff:28b:7bed
2.139.123.238 0:0:0:0:0:ffff:28b:7bee
2.139.123.239 0:0:0:0:0:ffff:28b:7bef
2.139.123.240 0:0:0:0:0:ffff:28b:7bf0
2.139.123.241 0:0:0:0:0:ffff:28b:7bf1
2.139.123.242 0:0:0:0:0:ffff:28b:7bf2
2.139.123.243 0:0:0:0:0:ffff:28b:7bf3
2.139.123.244 0:0:0:0:0:ffff:28b:7bf4
2.139.123.245 0:0:0:0:0:ffff:28b:7bf5
2.139.123.246 0:0:0:0:0:ffff:28b:7bf6
2.139.123.247 0:0:0:0:0:ffff:28b:7bf7
2.139.123.248 0:0:0:0:0:ffff:28b:7bf8
2.139.123.249 0:0:0:0:0:ffff:28b:7bf9
2.139.123.250 0:0:0:0:0:ffff:28b:7bfa
2.139.123.251 0:0:0:0:0:ffff:28b:7bfb
2.139.123.252 0:0:0:0:0:ffff:28b:7bfc
2.139.123.253 0:0:0:0:0:ffff:28b:7bfd
2.139.123.254 0:0:0:0:0:ffff:28b:7bfe
2.139.123.255 0:0:0:0:0:ffff:28b: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.