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
145.57.123.1 0:0:0:0:0:ffff:9139:7b01
145.57.123.2 0:0:0:0:0:ffff:9139:7b02
145.57.123.3 0:0:0:0:0:ffff:9139:7b03
145.57.123.4 0:0:0:0:0:ffff:9139:7b04
145.57.123.5 0:0:0:0:0:ffff:9139:7b05
145.57.123.6 0:0:0:0:0:ffff:9139:7b06
145.57.123.7 0:0:0:0:0:ffff:9139:7b07
145.57.123.8 0:0:0:0:0:ffff:9139:7b08
145.57.123.9 0:0:0:0:0:ffff:9139:7b09
145.57.123.10 0:0:0:0:0:ffff:9139:7b0a
145.57.123.11 0:0:0:0:0:ffff:9139:7b0b
145.57.123.12 0:0:0:0:0:ffff:9139:7b0c
145.57.123.13 0:0:0:0:0:ffff:9139:7b0d
145.57.123.14 0:0:0:0:0:ffff:9139:7b0e
145.57.123.15 0:0:0:0:0:ffff:9139:7b0f
145.57.123.16 0:0:0:0:0:ffff:9139:7b10
145.57.123.17 0:0:0:0:0:ffff:9139:7b11
145.57.123.18 0:0:0:0:0:ffff:9139:7b12
145.57.123.19 0:0:0:0:0:ffff:9139:7b13
145.57.123.20 0:0:0:0:0:ffff:9139:7b14
145.57.123.21 0:0:0:0:0:ffff:9139:7b15
145.57.123.22 0:0:0:0:0:ffff:9139:7b16
145.57.123.23 0:0:0:0:0:ffff:9139:7b17
145.57.123.24 0:0:0:0:0:ffff:9139:7b18
145.57.123.25 0:0:0:0:0:ffff:9139:7b19
145.57.123.26 0:0:0:0:0:ffff:9139:7b1a
145.57.123.27 0:0:0:0:0:ffff:9139:7b1b
145.57.123.28 0:0:0:0:0:ffff:9139:7b1c
145.57.123.29 0:0:0:0:0:ffff:9139:7b1d
145.57.123.30 0:0:0:0:0:ffff:9139:7b1e
145.57.123.31 0:0:0:0:0:ffff:9139:7b1f
145.57.123.32 0:0:0:0:0:ffff:9139:7b20
145.57.123.33 0:0:0:0:0:ffff:9139:7b21
145.57.123.34 0:0:0:0:0:ffff:9139:7b22
145.57.123.35 0:0:0:0:0:ffff:9139:7b23
145.57.123.36 0:0:0:0:0:ffff:9139:7b24
145.57.123.37 0:0:0:0:0:ffff:9139:7b25
145.57.123.38 0:0:0:0:0:ffff:9139:7b26
145.57.123.39 0:0:0:0:0:ffff:9139:7b27
145.57.123.40 0:0:0:0:0:ffff:9139:7b28
145.57.123.41 0:0:0:0:0:ffff:9139:7b29
145.57.123.42 0:0:0:0:0:ffff:9139:7b2a
145.57.123.43 0:0:0:0:0:ffff:9139:7b2b
145.57.123.44 0:0:0:0:0:ffff:9139:7b2c
145.57.123.45 0:0:0:0:0:ffff:9139:7b2d
145.57.123.46 0:0:0:0:0:ffff:9139:7b2e
145.57.123.47 0:0:0:0:0:ffff:9139:7b2f
145.57.123.48 0:0:0:0:0:ffff:9139:7b30
145.57.123.49 0:0:0:0:0:ffff:9139:7b31
145.57.123.50 0:0:0:0:0:ffff:9139:7b32
145.57.123.51 0:0:0:0:0:ffff:9139:7b33
145.57.123.52 0:0:0:0:0:ffff:9139:7b34
145.57.123.53 0:0:0:0:0:ffff:9139:7b35
145.57.123.54 0:0:0:0:0:ffff:9139:7b36
145.57.123.55 0:0:0:0:0:ffff:9139:7b37
145.57.123.56 0:0:0:0:0:ffff:9139:7b38
145.57.123.57 0:0:0:0:0:ffff:9139:7b39
145.57.123.58 0:0:0:0:0:ffff:9139:7b3a
145.57.123.59 0:0:0:0:0:ffff:9139:7b3b
145.57.123.60 0:0:0:0:0:ffff:9139:7b3c


145.57.123.61 0:0:0:0:0:ffff:9139:7b3d
145.57.123.62 0:0:0:0:0:ffff:9139:7b3e
145.57.123.63 0:0:0:0:0:ffff:9139:7b3f
145.57.123.64 0:0:0:0:0:ffff:9139:7b40
145.57.123.65 0:0:0:0:0:ffff:9139:7b41
145.57.123.66 0:0:0:0:0:ffff:9139:7b42
145.57.123.67 0:0:0:0:0:ffff:9139:7b43
145.57.123.68 0:0:0:0:0:ffff:9139:7b44
145.57.123.69 0:0:0:0:0:ffff:9139:7b45
145.57.123.70 0:0:0:0:0:ffff:9139:7b46
145.57.123.71 0:0:0:0:0:ffff:9139:7b47
145.57.123.72 0:0:0:0:0:ffff:9139:7b48
145.57.123.73 0:0:0:0:0:ffff:9139:7b49
145.57.123.74 0:0:0:0:0:ffff:9139:7b4a
145.57.123.75 0:0:0:0:0:ffff:9139:7b4b
145.57.123.76 0:0:0:0:0:ffff:9139:7b4c
145.57.123.77 0:0:0:0:0:ffff:9139:7b4d
145.57.123.78 0:0:0:0:0:ffff:9139:7b4e
145.57.123.79 0:0:0:0:0:ffff:9139:7b4f
145.57.123.80 0:0:0:0:0:ffff:9139:7b50
145.57.123.81 0:0:0:0:0:ffff:9139:7b51
145.57.123.82 0:0:0:0:0:ffff:9139:7b52
145.57.123.83 0:0:0:0:0:ffff:9139:7b53
145.57.123.84 0:0:0:0:0:ffff:9139:7b54
145.57.123.85 0:0:0:0:0:ffff:9139:7b55
145.57.123.86 0:0:0:0:0:ffff:9139:7b56
145.57.123.87 0:0:0:0:0:ffff:9139:7b57
145.57.123.88 0:0:0:0:0:ffff:9139:7b58
145.57.123.89 0:0:0:0:0:ffff:9139:7b59
145.57.123.90 0:0:0:0:0:ffff:9139:7b5a
145.57.123.91 0:0:0:0:0:ffff:9139:7b5b
145.57.123.92 0:0:0:0:0:ffff:9139:7b5c
145.57.123.93 0:0:0:0:0:ffff:9139:7b5d
145.57.123.94 0:0:0:0:0:ffff:9139:7b5e
145.57.123.95 0:0:0:0:0:ffff:9139:7b5f
145.57.123.96 0:0:0:0:0:ffff:9139:7b60
145.57.123.97 0:0:0:0:0:ffff:9139:7b61
145.57.123.98 0:0:0:0:0:ffff:9139:7b62
145.57.123.99 0:0:0:0:0:ffff:9139:7b63
145.57.123.100 0:0:0:0:0:ffff:9139:7b64
145.57.123.101 0:0:0:0:0:ffff:9139:7b65
145.57.123.102 0:0:0:0:0:ffff:9139:7b66
145.57.123.103 0:0:0:0:0:ffff:9139:7b67
145.57.123.104 0:0:0:0:0:ffff:9139:7b68
145.57.123.105 0:0:0:0:0:ffff:9139:7b69
145.57.123.106 0:0:0:0:0:ffff:9139:7b6a
145.57.123.107 0:0:0:0:0:ffff:9139:7b6b
145.57.123.108 0:0:0:0:0:ffff:9139:7b6c
145.57.123.109 0:0:0:0:0:ffff:9139:7b6d
145.57.123.110 0:0:0:0:0:ffff:9139:7b6e
145.57.123.111 0:0:0:0:0:ffff:9139:7b6f
145.57.123.112 0:0:0:0:0:ffff:9139:7b70
145.57.123.113 0:0:0:0:0:ffff:9139:7b71
145.57.123.114 0:0:0:0:0:ffff:9139:7b72
145.57.123.115 0:0:0:0:0:ffff:9139:7b73
145.57.123.116 0:0:0:0:0:ffff:9139:7b74
145.57.123.117 0:0:0:0:0:ffff:9139:7b75
145.57.123.118 0:0:0:0:0:ffff:9139:7b76
145.57.123.119 0:0:0:0:0:ffff:9139:7b77
145.57.123.120 0:0:0:0:0:ffff:9139:7b78


145.57.123.121 0:0:0:0:0:ffff:9139:7b79
145.57.123.122 0:0:0:0:0:ffff:9139:7b7a
145.57.123.123 0:0:0:0:0:ffff:9139:7b7b
145.57.123.124 0:0:0:0:0:ffff:9139:7b7c
145.57.123.125 0:0:0:0:0:ffff:9139:7b7d
145.57.123.126 0:0:0:0:0:ffff:9139:7b7e
145.57.123.127 0:0:0:0:0:ffff:9139:7b7f
145.57.123.128 0:0:0:0:0:ffff:9139:7b80
145.57.123.129 0:0:0:0:0:ffff:9139:7b81
145.57.123.130 0:0:0:0:0:ffff:9139:7b82
145.57.123.131 0:0:0:0:0:ffff:9139:7b83
145.57.123.132 0:0:0:0:0:ffff:9139:7b84
145.57.123.133 0:0:0:0:0:ffff:9139:7b85
145.57.123.134 0:0:0:0:0:ffff:9139:7b86
145.57.123.135 0:0:0:0:0:ffff:9139:7b87
145.57.123.136 0:0:0:0:0:ffff:9139:7b88
145.57.123.137 0:0:0:0:0:ffff:9139:7b89
145.57.123.138 0:0:0:0:0:ffff:9139:7b8a
145.57.123.139 0:0:0:0:0:ffff:9139:7b8b
145.57.123.140 0:0:0:0:0:ffff:9139:7b8c
145.57.123.141 0:0:0:0:0:ffff:9139:7b8d
145.57.123.142 0:0:0:0:0:ffff:9139:7b8e
145.57.123.143 0:0:0:0:0:ffff:9139:7b8f
145.57.123.144 0:0:0:0:0:ffff:9139:7b90
145.57.123.145 0:0:0:0:0:ffff:9139:7b91
145.57.123.146 0:0:0:0:0:ffff:9139:7b92
145.57.123.147 0:0:0:0:0:ffff:9139:7b93
145.57.123.148 0:0:0:0:0:ffff:9139:7b94
145.57.123.149 0:0:0:0:0:ffff:9139:7b95
145.57.123.150 0:0:0:0:0:ffff:9139:7b96
145.57.123.151 0:0:0:0:0:ffff:9139:7b97
145.57.123.152 0:0:0:0:0:ffff:9139:7b98
145.57.123.153 0:0:0:0:0:ffff:9139:7b99
145.57.123.154 0:0:0:0:0:ffff:9139:7b9a
145.57.123.155 0:0:0:0:0:ffff:9139:7b9b
145.57.123.156 0:0:0:0:0:ffff:9139:7b9c
145.57.123.157 0:0:0:0:0:ffff:9139:7b9d
145.57.123.158 0:0:0:0:0:ffff:9139:7b9e
145.57.123.159 0:0:0:0:0:ffff:9139:7b9f
145.57.123.160 0:0:0:0:0:ffff:9139:7ba0
145.57.123.161 0:0:0:0:0:ffff:9139:7ba1
145.57.123.162 0:0:0:0:0:ffff:9139:7ba2
145.57.123.163 0:0:0:0:0:ffff:9139:7ba3
145.57.123.164 0:0:0:0:0:ffff:9139:7ba4
145.57.123.165 0:0:0:0:0:ffff:9139:7ba5
145.57.123.166 0:0:0:0:0:ffff:9139:7ba6
145.57.123.167 0:0:0:0:0:ffff:9139:7ba7
145.57.123.168 0:0:0:0:0:ffff:9139:7ba8
145.57.123.169 0:0:0:0:0:ffff:9139:7ba9
145.57.123.170 0:0:0:0:0:ffff:9139:7baa
145.57.123.171 0:0:0:0:0:ffff:9139:7bab
145.57.123.172 0:0:0:0:0:ffff:9139:7bac
145.57.123.173 0:0:0:0:0:ffff:9139:7bad
145.57.123.174 0:0:0:0:0:ffff:9139:7bae
145.57.123.175 0:0:0:0:0:ffff:9139:7baf
145.57.123.176 0:0:0:0:0:ffff:9139:7bb0
145.57.123.177 0:0:0:0:0:ffff:9139:7bb1
145.57.123.178 0:0:0:0:0:ffff:9139:7bb2
145.57.123.179 0:0:0:0:0:ffff:9139:7bb3
145.57.123.180 0:0:0:0:0:ffff:9139:7bb4


145.57.123.181 0:0:0:0:0:ffff:9139:7bb5
145.57.123.182 0:0:0:0:0:ffff:9139:7bb6
145.57.123.183 0:0:0:0:0:ffff:9139:7bb7
145.57.123.184 0:0:0:0:0:ffff:9139:7bb8
145.57.123.185 0:0:0:0:0:ffff:9139:7bb9
145.57.123.186 0:0:0:0:0:ffff:9139:7bba
145.57.123.187 0:0:0:0:0:ffff:9139:7bbb
145.57.123.188 0:0:0:0:0:ffff:9139:7bbc
145.57.123.189 0:0:0:0:0:ffff:9139:7bbd
145.57.123.190 0:0:0:0:0:ffff:9139:7bbe
145.57.123.191 0:0:0:0:0:ffff:9139:7bbf
145.57.123.192 0:0:0:0:0:ffff:9139:7bc0
145.57.123.193 0:0:0:0:0:ffff:9139:7bc1
145.57.123.194 0:0:0:0:0:ffff:9139:7bc2
145.57.123.195 0:0:0:0:0:ffff:9139:7bc3
145.57.123.196 0:0:0:0:0:ffff:9139:7bc4
145.57.123.197 0:0:0:0:0:ffff:9139:7bc5
145.57.123.198 0:0:0:0:0:ffff:9139:7bc6
145.57.123.199 0:0:0:0:0:ffff:9139:7bc7
145.57.123.200 0:0:0:0:0:ffff:9139:7bc8
145.57.123.201 0:0:0:0:0:ffff:9139:7bc9
145.57.123.202 0:0:0:0:0:ffff:9139:7bca
145.57.123.203 0:0:0:0:0:ffff:9139:7bcb
145.57.123.204 0:0:0:0:0:ffff:9139:7bcc
145.57.123.205 0:0:0:0:0:ffff:9139:7bcd
145.57.123.206 0:0:0:0:0:ffff:9139:7bce
145.57.123.207 0:0:0:0:0:ffff:9139:7bcf
145.57.123.208 0:0:0:0:0:ffff:9139:7bd0
145.57.123.209 0:0:0:0:0:ffff:9139:7bd1
145.57.123.210 0:0:0:0:0:ffff:9139:7bd2
145.57.123.211 0:0:0:0:0:ffff:9139:7bd3
145.57.123.212 0:0:0:0:0:ffff:9139:7bd4
145.57.123.213 0:0:0:0:0:ffff:9139:7bd5
145.57.123.214 0:0:0:0:0:ffff:9139:7bd6
145.57.123.215 0:0:0:0:0:ffff:9139:7bd7
145.57.123.216 0:0:0:0:0:ffff:9139:7bd8
145.57.123.217 0:0:0:0:0:ffff:9139:7bd9
145.57.123.218 0:0:0:0:0:ffff:9139:7bda
145.57.123.219 0:0:0:0:0:ffff:9139:7bdb
145.57.123.220 0:0:0:0:0:ffff:9139:7bdc
145.57.123.221 0:0:0:0:0:ffff:9139:7bdd
145.57.123.222 0:0:0:0:0:ffff:9139:7bde
145.57.123.223 0:0:0:0:0:ffff:9139:7bdf
145.57.123.224 0:0:0:0:0:ffff:9139:7be0
145.57.123.225 0:0:0:0:0:ffff:9139:7be1
145.57.123.226 0:0:0:0:0:ffff:9139:7be2
145.57.123.227 0:0:0:0:0:ffff:9139:7be3
145.57.123.228 0:0:0:0:0:ffff:9139:7be4
145.57.123.229 0:0:0:0:0:ffff:9139:7be5
145.57.123.230 0:0:0:0:0:ffff:9139:7be6
145.57.123.231 0:0:0:0:0:ffff:9139:7be7
145.57.123.232 0:0:0:0:0:ffff:9139:7be8
145.57.123.233 0:0:0:0:0:ffff:9139:7be9
145.57.123.234 0:0:0:0:0:ffff:9139:7bea
145.57.123.235 0:0:0:0:0:ffff:9139:7beb
145.57.123.236 0:0:0:0:0:ffff:9139:7bec
145.57.123.237 0:0:0:0:0:ffff:9139:7bed
145.57.123.238 0:0:0:0:0:ffff:9139:7bee
145.57.123.239 0:0:0:0:0:ffff:9139:7bef
145.57.123.240 0:0:0:0:0:ffff:9139:7bf0
145.57.123.241 0:0:0:0:0:ffff:9139:7bf1
145.57.123.242 0:0:0:0:0:ffff:9139:7bf2
145.57.123.243 0:0:0:0:0:ffff:9139:7bf3
145.57.123.244 0:0:0:0:0:ffff:9139:7bf4
145.57.123.245 0:0:0:0:0:ffff:9139:7bf5
145.57.123.246 0:0:0:0:0:ffff:9139:7bf6
145.57.123.247 0:0:0:0:0:ffff:9139:7bf7
145.57.123.248 0:0:0:0:0:ffff:9139:7bf8
145.57.123.249 0:0:0:0:0:ffff:9139:7bf9
145.57.123.250 0:0:0:0:0:ffff:9139:7bfa
145.57.123.251 0:0:0:0:0:ffff:9139:7bfb
145.57.123.252 0:0:0:0:0:ffff:9139:7bfc
145.57.123.253 0:0:0:0:0:ffff:9139:7bfd
145.57.123.254 0:0:0:0:0:ffff:9139:7bfe
145.57.123.255 0:0:0:0:0:ffff:9139:7bff


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.