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
43.123.75.1 0:0:0:0:0:ffff:2b7b:4b01
43.123.75.2 0:0:0:0:0:ffff:2b7b:4b02
43.123.75.3 0:0:0:0:0:ffff:2b7b:4b03
43.123.75.4 0:0:0:0:0:ffff:2b7b:4b04
43.123.75.5 0:0:0:0:0:ffff:2b7b:4b05
43.123.75.6 0:0:0:0:0:ffff:2b7b:4b06
43.123.75.7 0:0:0:0:0:ffff:2b7b:4b07
43.123.75.8 0:0:0:0:0:ffff:2b7b:4b08
43.123.75.9 0:0:0:0:0:ffff:2b7b:4b09
43.123.75.10 0:0:0:0:0:ffff:2b7b:4b0a
43.123.75.11 0:0:0:0:0:ffff:2b7b:4b0b
43.123.75.12 0:0:0:0:0:ffff:2b7b:4b0c
43.123.75.13 0:0:0:0:0:ffff:2b7b:4b0d
43.123.75.14 0:0:0:0:0:ffff:2b7b:4b0e
43.123.75.15 0:0:0:0:0:ffff:2b7b:4b0f
43.123.75.16 0:0:0:0:0:ffff:2b7b:4b10
43.123.75.17 0:0:0:0:0:ffff:2b7b:4b11
43.123.75.18 0:0:0:0:0:ffff:2b7b:4b12
43.123.75.19 0:0:0:0:0:ffff:2b7b:4b13
43.123.75.20 0:0:0:0:0:ffff:2b7b:4b14
43.123.75.21 0:0:0:0:0:ffff:2b7b:4b15
43.123.75.22 0:0:0:0:0:ffff:2b7b:4b16
43.123.75.23 0:0:0:0:0:ffff:2b7b:4b17
43.123.75.24 0:0:0:0:0:ffff:2b7b:4b18
43.123.75.25 0:0:0:0:0:ffff:2b7b:4b19
43.123.75.26 0:0:0:0:0:ffff:2b7b:4b1a
43.123.75.27 0:0:0:0:0:ffff:2b7b:4b1b
43.123.75.28 0:0:0:0:0:ffff:2b7b:4b1c
43.123.75.29 0:0:0:0:0:ffff:2b7b:4b1d
43.123.75.30 0:0:0:0:0:ffff:2b7b:4b1e
43.123.75.31 0:0:0:0:0:ffff:2b7b:4b1f
43.123.75.32 0:0:0:0:0:ffff:2b7b:4b20
43.123.75.33 0:0:0:0:0:ffff:2b7b:4b21
43.123.75.34 0:0:0:0:0:ffff:2b7b:4b22
43.123.75.35 0:0:0:0:0:ffff:2b7b:4b23
43.123.75.36 0:0:0:0:0:ffff:2b7b:4b24
43.123.75.37 0:0:0:0:0:ffff:2b7b:4b25
43.123.75.38 0:0:0:0:0:ffff:2b7b:4b26
43.123.75.39 0:0:0:0:0:ffff:2b7b:4b27
43.123.75.40 0:0:0:0:0:ffff:2b7b:4b28
43.123.75.41 0:0:0:0:0:ffff:2b7b:4b29
43.123.75.42 0:0:0:0:0:ffff:2b7b:4b2a
43.123.75.43 0:0:0:0:0:ffff:2b7b:4b2b
43.123.75.44 0:0:0:0:0:ffff:2b7b:4b2c
43.123.75.45 0:0:0:0:0:ffff:2b7b:4b2d
43.123.75.46 0:0:0:0:0:ffff:2b7b:4b2e
43.123.75.47 0:0:0:0:0:ffff:2b7b:4b2f
43.123.75.48 0:0:0:0:0:ffff:2b7b:4b30
43.123.75.49 0:0:0:0:0:ffff:2b7b:4b31
43.123.75.50 0:0:0:0:0:ffff:2b7b:4b32
43.123.75.51 0:0:0:0:0:ffff:2b7b:4b33
43.123.75.52 0:0:0:0:0:ffff:2b7b:4b34
43.123.75.53 0:0:0:0:0:ffff:2b7b:4b35
43.123.75.54 0:0:0:0:0:ffff:2b7b:4b36
43.123.75.55 0:0:0:0:0:ffff:2b7b:4b37
43.123.75.56 0:0:0:0:0:ffff:2b7b:4b38
43.123.75.57 0:0:0:0:0:ffff:2b7b:4b39
43.123.75.58 0:0:0:0:0:ffff:2b7b:4b3a
43.123.75.59 0:0:0:0:0:ffff:2b7b:4b3b
43.123.75.60 0:0:0:0:0:ffff:2b7b:4b3c


43.123.75.61 0:0:0:0:0:ffff:2b7b:4b3d
43.123.75.62 0:0:0:0:0:ffff:2b7b:4b3e
43.123.75.63 0:0:0:0:0:ffff:2b7b:4b3f
43.123.75.64 0:0:0:0:0:ffff:2b7b:4b40
43.123.75.65 0:0:0:0:0:ffff:2b7b:4b41
43.123.75.66 0:0:0:0:0:ffff:2b7b:4b42
43.123.75.67 0:0:0:0:0:ffff:2b7b:4b43
43.123.75.68 0:0:0:0:0:ffff:2b7b:4b44
43.123.75.69 0:0:0:0:0:ffff:2b7b:4b45
43.123.75.70 0:0:0:0:0:ffff:2b7b:4b46
43.123.75.71 0:0:0:0:0:ffff:2b7b:4b47
43.123.75.72 0:0:0:0:0:ffff:2b7b:4b48
43.123.75.73 0:0:0:0:0:ffff:2b7b:4b49
43.123.75.74 0:0:0:0:0:ffff:2b7b:4b4a
43.123.75.75 0:0:0:0:0:ffff:2b7b:4b4b
43.123.75.76 0:0:0:0:0:ffff:2b7b:4b4c
43.123.75.77 0:0:0:0:0:ffff:2b7b:4b4d
43.123.75.78 0:0:0:0:0:ffff:2b7b:4b4e
43.123.75.79 0:0:0:0:0:ffff:2b7b:4b4f
43.123.75.80 0:0:0:0:0:ffff:2b7b:4b50
43.123.75.81 0:0:0:0:0:ffff:2b7b:4b51
43.123.75.82 0:0:0:0:0:ffff:2b7b:4b52
43.123.75.83 0:0:0:0:0:ffff:2b7b:4b53
43.123.75.84 0:0:0:0:0:ffff:2b7b:4b54
43.123.75.85 0:0:0:0:0:ffff:2b7b:4b55
43.123.75.86 0:0:0:0:0:ffff:2b7b:4b56
43.123.75.87 0:0:0:0:0:ffff:2b7b:4b57
43.123.75.88 0:0:0:0:0:ffff:2b7b:4b58
43.123.75.89 0:0:0:0:0:ffff:2b7b:4b59
43.123.75.90 0:0:0:0:0:ffff:2b7b:4b5a
43.123.75.91 0:0:0:0:0:ffff:2b7b:4b5b
43.123.75.92 0:0:0:0:0:ffff:2b7b:4b5c
43.123.75.93 0:0:0:0:0:ffff:2b7b:4b5d
43.123.75.94 0:0:0:0:0:ffff:2b7b:4b5e
43.123.75.95 0:0:0:0:0:ffff:2b7b:4b5f
43.123.75.96 0:0:0:0:0:ffff:2b7b:4b60
43.123.75.97 0:0:0:0:0:ffff:2b7b:4b61
43.123.75.98 0:0:0:0:0:ffff:2b7b:4b62
43.123.75.99 0:0:0:0:0:ffff:2b7b:4b63
43.123.75.100 0:0:0:0:0:ffff:2b7b:4b64
43.123.75.101 0:0:0:0:0:ffff:2b7b:4b65
43.123.75.102 0:0:0:0:0:ffff:2b7b:4b66
43.123.75.103 0:0:0:0:0:ffff:2b7b:4b67
43.123.75.104 0:0:0:0:0:ffff:2b7b:4b68
43.123.75.105 0:0:0:0:0:ffff:2b7b:4b69
43.123.75.106 0:0:0:0:0:ffff:2b7b:4b6a
43.123.75.107 0:0:0:0:0:ffff:2b7b:4b6b
43.123.75.108 0:0:0:0:0:ffff:2b7b:4b6c
43.123.75.109 0:0:0:0:0:ffff:2b7b:4b6d
43.123.75.110 0:0:0:0:0:ffff:2b7b:4b6e
43.123.75.111 0:0:0:0:0:ffff:2b7b:4b6f
43.123.75.112 0:0:0:0:0:ffff:2b7b:4b70
43.123.75.113 0:0:0:0:0:ffff:2b7b:4b71
43.123.75.114 0:0:0:0:0:ffff:2b7b:4b72
43.123.75.115 0:0:0:0:0:ffff:2b7b:4b73
43.123.75.116 0:0:0:0:0:ffff:2b7b:4b74
43.123.75.117 0:0:0:0:0:ffff:2b7b:4b75
43.123.75.118 0:0:0:0:0:ffff:2b7b:4b76
43.123.75.119 0:0:0:0:0:ffff:2b7b:4b77
43.123.75.120 0:0:0:0:0:ffff:2b7b:4b78


43.123.75.121 0:0:0:0:0:ffff:2b7b:4b79
43.123.75.122 0:0:0:0:0:ffff:2b7b:4b7a
43.123.75.123 0:0:0:0:0:ffff:2b7b:4b7b
43.123.75.124 0:0:0:0:0:ffff:2b7b:4b7c
43.123.75.125 0:0:0:0:0:ffff:2b7b:4b7d
43.123.75.126 0:0:0:0:0:ffff:2b7b:4b7e
43.123.75.127 0:0:0:0:0:ffff:2b7b:4b7f
43.123.75.128 0:0:0:0:0:ffff:2b7b:4b80
43.123.75.129 0:0:0:0:0:ffff:2b7b:4b81
43.123.75.130 0:0:0:0:0:ffff:2b7b:4b82
43.123.75.131 0:0:0:0:0:ffff:2b7b:4b83
43.123.75.132 0:0:0:0:0:ffff:2b7b:4b84
43.123.75.133 0:0:0:0:0:ffff:2b7b:4b85
43.123.75.134 0:0:0:0:0:ffff:2b7b:4b86
43.123.75.135 0:0:0:0:0:ffff:2b7b:4b87
43.123.75.136 0:0:0:0:0:ffff:2b7b:4b88
43.123.75.137 0:0:0:0:0:ffff:2b7b:4b89
43.123.75.138 0:0:0:0:0:ffff:2b7b:4b8a
43.123.75.139 0:0:0:0:0:ffff:2b7b:4b8b
43.123.75.140 0:0:0:0:0:ffff:2b7b:4b8c
43.123.75.141 0:0:0:0:0:ffff:2b7b:4b8d
43.123.75.142 0:0:0:0:0:ffff:2b7b:4b8e
43.123.75.143 0:0:0:0:0:ffff:2b7b:4b8f
43.123.75.144 0:0:0:0:0:ffff:2b7b:4b90
43.123.75.145 0:0:0:0:0:ffff:2b7b:4b91
43.123.75.146 0:0:0:0:0:ffff:2b7b:4b92
43.123.75.147 0:0:0:0:0:ffff:2b7b:4b93
43.123.75.148 0:0:0:0:0:ffff:2b7b:4b94
43.123.75.149 0:0:0:0:0:ffff:2b7b:4b95
43.123.75.150 0:0:0:0:0:ffff:2b7b:4b96
43.123.75.151 0:0:0:0:0:ffff:2b7b:4b97
43.123.75.152 0:0:0:0:0:ffff:2b7b:4b98
43.123.75.153 0:0:0:0:0:ffff:2b7b:4b99
43.123.75.154 0:0:0:0:0:ffff:2b7b:4b9a
43.123.75.155 0:0:0:0:0:ffff:2b7b:4b9b
43.123.75.156 0:0:0:0:0:ffff:2b7b:4b9c
43.123.75.157 0:0:0:0:0:ffff:2b7b:4b9d
43.123.75.158 0:0:0:0:0:ffff:2b7b:4b9e
43.123.75.159 0:0:0:0:0:ffff:2b7b:4b9f
43.123.75.160 0:0:0:0:0:ffff:2b7b:4ba0
43.123.75.161 0:0:0:0:0:ffff:2b7b:4ba1
43.123.75.162 0:0:0:0:0:ffff:2b7b:4ba2
43.123.75.163 0:0:0:0:0:ffff:2b7b:4ba3
43.123.75.164 0:0:0:0:0:ffff:2b7b:4ba4
43.123.75.165 0:0:0:0:0:ffff:2b7b:4ba5
43.123.75.166 0:0:0:0:0:ffff:2b7b:4ba6
43.123.75.167 0:0:0:0:0:ffff:2b7b:4ba7
43.123.75.168 0:0:0:0:0:ffff:2b7b:4ba8
43.123.75.169 0:0:0:0:0:ffff:2b7b:4ba9
43.123.75.170 0:0:0:0:0:ffff:2b7b:4baa
43.123.75.171 0:0:0:0:0:ffff:2b7b:4bab
43.123.75.172 0:0:0:0:0:ffff:2b7b:4bac
43.123.75.173 0:0:0:0:0:ffff:2b7b:4bad
43.123.75.174 0:0:0:0:0:ffff:2b7b:4bae
43.123.75.175 0:0:0:0:0:ffff:2b7b:4baf
43.123.75.176 0:0:0:0:0:ffff:2b7b:4bb0
43.123.75.177 0:0:0:0:0:ffff:2b7b:4bb1
43.123.75.178 0:0:0:0:0:ffff:2b7b:4bb2
43.123.75.179 0:0:0:0:0:ffff:2b7b:4bb3
43.123.75.180 0:0:0:0:0:ffff:2b7b:4bb4


43.123.75.181 0:0:0:0:0:ffff:2b7b:4bb5
43.123.75.182 0:0:0:0:0:ffff:2b7b:4bb6
43.123.75.183 0:0:0:0:0:ffff:2b7b:4bb7
43.123.75.184 0:0:0:0:0:ffff:2b7b:4bb8
43.123.75.185 0:0:0:0:0:ffff:2b7b:4bb9
43.123.75.186 0:0:0:0:0:ffff:2b7b:4bba
43.123.75.187 0:0:0:0:0:ffff:2b7b:4bbb
43.123.75.188 0:0:0:0:0:ffff:2b7b:4bbc
43.123.75.189 0:0:0:0:0:ffff:2b7b:4bbd
43.123.75.190 0:0:0:0:0:ffff:2b7b:4bbe
43.123.75.191 0:0:0:0:0:ffff:2b7b:4bbf
43.123.75.192 0:0:0:0:0:ffff:2b7b:4bc0
43.123.75.193 0:0:0:0:0:ffff:2b7b:4bc1
43.123.75.194 0:0:0:0:0:ffff:2b7b:4bc2
43.123.75.195 0:0:0:0:0:ffff:2b7b:4bc3
43.123.75.196 0:0:0:0:0:ffff:2b7b:4bc4
43.123.75.197 0:0:0:0:0:ffff:2b7b:4bc5
43.123.75.198 0:0:0:0:0:ffff:2b7b:4bc6
43.123.75.199 0:0:0:0:0:ffff:2b7b:4bc7
43.123.75.200 0:0:0:0:0:ffff:2b7b:4bc8
43.123.75.201 0:0:0:0:0:ffff:2b7b:4bc9
43.123.75.202 0:0:0:0:0:ffff:2b7b:4bca
43.123.75.203 0:0:0:0:0:ffff:2b7b:4bcb
43.123.75.204 0:0:0:0:0:ffff:2b7b:4bcc
43.123.75.205 0:0:0:0:0:ffff:2b7b:4bcd
43.123.75.206 0:0:0:0:0:ffff:2b7b:4bce
43.123.75.207 0:0:0:0:0:ffff:2b7b:4bcf
43.123.75.208 0:0:0:0:0:ffff:2b7b:4bd0
43.123.75.209 0:0:0:0:0:ffff:2b7b:4bd1
43.123.75.210 0:0:0:0:0:ffff:2b7b:4bd2
43.123.75.211 0:0:0:0:0:ffff:2b7b:4bd3
43.123.75.212 0:0:0:0:0:ffff:2b7b:4bd4
43.123.75.213 0:0:0:0:0:ffff:2b7b:4bd5
43.123.75.214 0:0:0:0:0:ffff:2b7b:4bd6
43.123.75.215 0:0:0:0:0:ffff:2b7b:4bd7
43.123.75.216 0:0:0:0:0:ffff:2b7b:4bd8
43.123.75.217 0:0:0:0:0:ffff:2b7b:4bd9
43.123.75.218 0:0:0:0:0:ffff:2b7b:4bda
43.123.75.219 0:0:0:0:0:ffff:2b7b:4bdb
43.123.75.220 0:0:0:0:0:ffff:2b7b:4bdc
43.123.75.221 0:0:0:0:0:ffff:2b7b:4bdd
43.123.75.222 0:0:0:0:0:ffff:2b7b:4bde
43.123.75.223 0:0:0:0:0:ffff:2b7b:4bdf
43.123.75.224 0:0:0:0:0:ffff:2b7b:4be0
43.123.75.225 0:0:0:0:0:ffff:2b7b:4be1
43.123.75.226 0:0:0:0:0:ffff:2b7b:4be2
43.123.75.227 0:0:0:0:0:ffff:2b7b:4be3
43.123.75.228 0:0:0:0:0:ffff:2b7b:4be4
43.123.75.229 0:0:0:0:0:ffff:2b7b:4be5
43.123.75.230 0:0:0:0:0:ffff:2b7b:4be6
43.123.75.231 0:0:0:0:0:ffff:2b7b:4be7
43.123.75.232 0:0:0:0:0:ffff:2b7b:4be8
43.123.75.233 0:0:0:0:0:ffff:2b7b:4be9
43.123.75.234 0:0:0:0:0:ffff:2b7b:4bea
43.123.75.235 0:0:0:0:0:ffff:2b7b:4beb
43.123.75.236 0:0:0:0:0:ffff:2b7b:4bec
43.123.75.237 0:0:0:0:0:ffff:2b7b:4bed
43.123.75.238 0:0:0:0:0:ffff:2b7b:4bee
43.123.75.239 0:0:0:0:0:ffff:2b7b:4bef
43.123.75.240 0:0:0:0:0:ffff:2b7b:4bf0
43.123.75.241 0:0:0:0:0:ffff:2b7b:4bf1
43.123.75.242 0:0:0:0:0:ffff:2b7b:4bf2
43.123.75.243 0:0:0:0:0:ffff:2b7b:4bf3
43.123.75.244 0:0:0:0:0:ffff:2b7b:4bf4
43.123.75.245 0:0:0:0:0:ffff:2b7b:4bf5
43.123.75.246 0:0:0:0:0:ffff:2b7b:4bf6
43.123.75.247 0:0:0:0:0:ffff:2b7b:4bf7
43.123.75.248 0:0:0:0:0:ffff:2b7b:4bf8
43.123.75.249 0:0:0:0:0:ffff:2b7b:4bf9
43.123.75.250 0:0:0:0:0:ffff:2b7b:4bfa
43.123.75.251 0:0:0:0:0:ffff:2b7b:4bfb
43.123.75.252 0:0:0:0:0:ffff:2b7b:4bfc
43.123.75.253 0:0:0:0:0:ffff:2b7b:4bfd
43.123.75.254 0:0:0:0:0:ffff:2b7b:4bfe
43.123.75.255 0:0:0:0:0:ffff:2b7b:4bff


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.