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
57.21.90.1 0:0:0:0:0:ffff:3915:5a01
57.21.90.2 0:0:0:0:0:ffff:3915:5a02
57.21.90.3 0:0:0:0:0:ffff:3915:5a03
57.21.90.4 0:0:0:0:0:ffff:3915:5a04
57.21.90.5 0:0:0:0:0:ffff:3915:5a05
57.21.90.6 0:0:0:0:0:ffff:3915:5a06
57.21.90.7 0:0:0:0:0:ffff:3915:5a07
57.21.90.8 0:0:0:0:0:ffff:3915:5a08
57.21.90.9 0:0:0:0:0:ffff:3915:5a09
57.21.90.10 0:0:0:0:0:ffff:3915:5a0a
57.21.90.11 0:0:0:0:0:ffff:3915:5a0b
57.21.90.12 0:0:0:0:0:ffff:3915:5a0c
57.21.90.13 0:0:0:0:0:ffff:3915:5a0d
57.21.90.14 0:0:0:0:0:ffff:3915:5a0e
57.21.90.15 0:0:0:0:0:ffff:3915:5a0f
57.21.90.16 0:0:0:0:0:ffff:3915:5a10
57.21.90.17 0:0:0:0:0:ffff:3915:5a11
57.21.90.18 0:0:0:0:0:ffff:3915:5a12
57.21.90.19 0:0:0:0:0:ffff:3915:5a13
57.21.90.20 0:0:0:0:0:ffff:3915:5a14
57.21.90.21 0:0:0:0:0:ffff:3915:5a15
57.21.90.22 0:0:0:0:0:ffff:3915:5a16
57.21.90.23 0:0:0:0:0:ffff:3915:5a17
57.21.90.24 0:0:0:0:0:ffff:3915:5a18
57.21.90.25 0:0:0:0:0:ffff:3915:5a19
57.21.90.26 0:0:0:0:0:ffff:3915:5a1a
57.21.90.27 0:0:0:0:0:ffff:3915:5a1b
57.21.90.28 0:0:0:0:0:ffff:3915:5a1c
57.21.90.29 0:0:0:0:0:ffff:3915:5a1d
57.21.90.30 0:0:0:0:0:ffff:3915:5a1e
57.21.90.31 0:0:0:0:0:ffff:3915:5a1f
57.21.90.32 0:0:0:0:0:ffff:3915:5a20
57.21.90.33 0:0:0:0:0:ffff:3915:5a21
57.21.90.34 0:0:0:0:0:ffff:3915:5a22
57.21.90.35 0:0:0:0:0:ffff:3915:5a23
57.21.90.36 0:0:0:0:0:ffff:3915:5a24
57.21.90.37 0:0:0:0:0:ffff:3915:5a25
57.21.90.38 0:0:0:0:0:ffff:3915:5a26
57.21.90.39 0:0:0:0:0:ffff:3915:5a27
57.21.90.40 0:0:0:0:0:ffff:3915:5a28
57.21.90.41 0:0:0:0:0:ffff:3915:5a29
57.21.90.42 0:0:0:0:0:ffff:3915:5a2a
57.21.90.43 0:0:0:0:0:ffff:3915:5a2b
57.21.90.44 0:0:0:0:0:ffff:3915:5a2c
57.21.90.45 0:0:0:0:0:ffff:3915:5a2d
57.21.90.46 0:0:0:0:0:ffff:3915:5a2e
57.21.90.47 0:0:0:0:0:ffff:3915:5a2f
57.21.90.48 0:0:0:0:0:ffff:3915:5a30
57.21.90.49 0:0:0:0:0:ffff:3915:5a31
57.21.90.50 0:0:0:0:0:ffff:3915:5a32
57.21.90.51 0:0:0:0:0:ffff:3915:5a33
57.21.90.52 0:0:0:0:0:ffff:3915:5a34
57.21.90.53 0:0:0:0:0:ffff:3915:5a35
57.21.90.54 0:0:0:0:0:ffff:3915:5a36
57.21.90.55 0:0:0:0:0:ffff:3915:5a37
57.21.90.56 0:0:0:0:0:ffff:3915:5a38
57.21.90.57 0:0:0:0:0:ffff:3915:5a39
57.21.90.58 0:0:0:0:0:ffff:3915:5a3a
57.21.90.59 0:0:0:0:0:ffff:3915:5a3b
57.21.90.60 0:0:0:0:0:ffff:3915:5a3c


57.21.90.61 0:0:0:0:0:ffff:3915:5a3d
57.21.90.62 0:0:0:0:0:ffff:3915:5a3e
57.21.90.63 0:0:0:0:0:ffff:3915:5a3f
57.21.90.64 0:0:0:0:0:ffff:3915:5a40
57.21.90.65 0:0:0:0:0:ffff:3915:5a41
57.21.90.66 0:0:0:0:0:ffff:3915:5a42
57.21.90.67 0:0:0:0:0:ffff:3915:5a43
57.21.90.68 0:0:0:0:0:ffff:3915:5a44
57.21.90.69 0:0:0:0:0:ffff:3915:5a45
57.21.90.70 0:0:0:0:0:ffff:3915:5a46
57.21.90.71 0:0:0:0:0:ffff:3915:5a47
57.21.90.72 0:0:0:0:0:ffff:3915:5a48
57.21.90.73 0:0:0:0:0:ffff:3915:5a49
57.21.90.74 0:0:0:0:0:ffff:3915:5a4a
57.21.90.75 0:0:0:0:0:ffff:3915:5a4b
57.21.90.76 0:0:0:0:0:ffff:3915:5a4c
57.21.90.77 0:0:0:0:0:ffff:3915:5a4d
57.21.90.78 0:0:0:0:0:ffff:3915:5a4e
57.21.90.79 0:0:0:0:0:ffff:3915:5a4f
57.21.90.80 0:0:0:0:0:ffff:3915:5a50
57.21.90.81 0:0:0:0:0:ffff:3915:5a51
57.21.90.82 0:0:0:0:0:ffff:3915:5a52
57.21.90.83 0:0:0:0:0:ffff:3915:5a53
57.21.90.84 0:0:0:0:0:ffff:3915:5a54
57.21.90.85 0:0:0:0:0:ffff:3915:5a55
57.21.90.86 0:0:0:0:0:ffff:3915:5a56
57.21.90.87 0:0:0:0:0:ffff:3915:5a57
57.21.90.88 0:0:0:0:0:ffff:3915:5a58
57.21.90.89 0:0:0:0:0:ffff:3915:5a59
57.21.90.90 0:0:0:0:0:ffff:3915:5a5a
57.21.90.91 0:0:0:0:0:ffff:3915:5a5b
57.21.90.92 0:0:0:0:0:ffff:3915:5a5c
57.21.90.93 0:0:0:0:0:ffff:3915:5a5d
57.21.90.94 0:0:0:0:0:ffff:3915:5a5e
57.21.90.95 0:0:0:0:0:ffff:3915:5a5f
57.21.90.96 0:0:0:0:0:ffff:3915:5a60
57.21.90.97 0:0:0:0:0:ffff:3915:5a61
57.21.90.98 0:0:0:0:0:ffff:3915:5a62
57.21.90.99 0:0:0:0:0:ffff:3915:5a63
57.21.90.100 0:0:0:0:0:ffff:3915:5a64
57.21.90.101 0:0:0:0:0:ffff:3915:5a65
57.21.90.102 0:0:0:0:0:ffff:3915:5a66
57.21.90.103 0:0:0:0:0:ffff:3915:5a67
57.21.90.104 0:0:0:0:0:ffff:3915:5a68
57.21.90.105 0:0:0:0:0:ffff:3915:5a69
57.21.90.106 0:0:0:0:0:ffff:3915:5a6a
57.21.90.107 0:0:0:0:0:ffff:3915:5a6b
57.21.90.108 0:0:0:0:0:ffff:3915:5a6c
57.21.90.109 0:0:0:0:0:ffff:3915:5a6d
57.21.90.110 0:0:0:0:0:ffff:3915:5a6e
57.21.90.111 0:0:0:0:0:ffff:3915:5a6f
57.21.90.112 0:0:0:0:0:ffff:3915:5a70
57.21.90.113 0:0:0:0:0:ffff:3915:5a71
57.21.90.114 0:0:0:0:0:ffff:3915:5a72
57.21.90.115 0:0:0:0:0:ffff:3915:5a73
57.21.90.116 0:0:0:0:0:ffff:3915:5a74
57.21.90.117 0:0:0:0:0:ffff:3915:5a75
57.21.90.118 0:0:0:0:0:ffff:3915:5a76
57.21.90.119 0:0:0:0:0:ffff:3915:5a77
57.21.90.120 0:0:0:0:0:ffff:3915:5a78


57.21.90.121 0:0:0:0:0:ffff:3915:5a79
57.21.90.122 0:0:0:0:0:ffff:3915:5a7a
57.21.90.123 0:0:0:0:0:ffff:3915:5a7b
57.21.90.124 0:0:0:0:0:ffff:3915:5a7c
57.21.90.125 0:0:0:0:0:ffff:3915:5a7d
57.21.90.126 0:0:0:0:0:ffff:3915:5a7e
57.21.90.127 0:0:0:0:0:ffff:3915:5a7f
57.21.90.128 0:0:0:0:0:ffff:3915:5a80
57.21.90.129 0:0:0:0:0:ffff:3915:5a81
57.21.90.130 0:0:0:0:0:ffff:3915:5a82
57.21.90.131 0:0:0:0:0:ffff:3915:5a83
57.21.90.132 0:0:0:0:0:ffff:3915:5a84
57.21.90.133 0:0:0:0:0:ffff:3915:5a85
57.21.90.134 0:0:0:0:0:ffff:3915:5a86
57.21.90.135 0:0:0:0:0:ffff:3915:5a87
57.21.90.136 0:0:0:0:0:ffff:3915:5a88
57.21.90.137 0:0:0:0:0:ffff:3915:5a89
57.21.90.138 0:0:0:0:0:ffff:3915:5a8a
57.21.90.139 0:0:0:0:0:ffff:3915:5a8b
57.21.90.140 0:0:0:0:0:ffff:3915:5a8c
57.21.90.141 0:0:0:0:0:ffff:3915:5a8d
57.21.90.142 0:0:0:0:0:ffff:3915:5a8e
57.21.90.143 0:0:0:0:0:ffff:3915:5a8f
57.21.90.144 0:0:0:0:0:ffff:3915:5a90
57.21.90.145 0:0:0:0:0:ffff:3915:5a91
57.21.90.146 0:0:0:0:0:ffff:3915:5a92
57.21.90.147 0:0:0:0:0:ffff:3915:5a93
57.21.90.148 0:0:0:0:0:ffff:3915:5a94
57.21.90.149 0:0:0:0:0:ffff:3915:5a95
57.21.90.150 0:0:0:0:0:ffff:3915:5a96
57.21.90.151 0:0:0:0:0:ffff:3915:5a97
57.21.90.152 0:0:0:0:0:ffff:3915:5a98
57.21.90.153 0:0:0:0:0:ffff:3915:5a99
57.21.90.154 0:0:0:0:0:ffff:3915:5a9a
57.21.90.155 0:0:0:0:0:ffff:3915:5a9b
57.21.90.156 0:0:0:0:0:ffff:3915:5a9c
57.21.90.157 0:0:0:0:0:ffff:3915:5a9d
57.21.90.158 0:0:0:0:0:ffff:3915:5a9e
57.21.90.159 0:0:0:0:0:ffff:3915:5a9f
57.21.90.160 0:0:0:0:0:ffff:3915:5aa0
57.21.90.161 0:0:0:0:0:ffff:3915:5aa1
57.21.90.162 0:0:0:0:0:ffff:3915:5aa2
57.21.90.163 0:0:0:0:0:ffff:3915:5aa3
57.21.90.164 0:0:0:0:0:ffff:3915:5aa4
57.21.90.165 0:0:0:0:0:ffff:3915:5aa5
57.21.90.166 0:0:0:0:0:ffff:3915:5aa6
57.21.90.167 0:0:0:0:0:ffff:3915:5aa7
57.21.90.168 0:0:0:0:0:ffff:3915:5aa8
57.21.90.169 0:0:0:0:0:ffff:3915:5aa9
57.21.90.170 0:0:0:0:0:ffff:3915:5aaa
57.21.90.171 0:0:0:0:0:ffff:3915:5aab
57.21.90.172 0:0:0:0:0:ffff:3915:5aac
57.21.90.173 0:0:0:0:0:ffff:3915:5aad
57.21.90.174 0:0:0:0:0:ffff:3915:5aae
57.21.90.175 0:0:0:0:0:ffff:3915:5aaf
57.21.90.176 0:0:0:0:0:ffff:3915:5ab0
57.21.90.177 0:0:0:0:0:ffff:3915:5ab1
57.21.90.178 0:0:0:0:0:ffff:3915:5ab2
57.21.90.179 0:0:0:0:0:ffff:3915:5ab3
57.21.90.180 0:0:0:0:0:ffff:3915:5ab4


57.21.90.181 0:0:0:0:0:ffff:3915:5ab5
57.21.90.182 0:0:0:0:0:ffff:3915:5ab6
57.21.90.183 0:0:0:0:0:ffff:3915:5ab7
57.21.90.184 0:0:0:0:0:ffff:3915:5ab8
57.21.90.185 0:0:0:0:0:ffff:3915:5ab9
57.21.90.186 0:0:0:0:0:ffff:3915:5aba
57.21.90.187 0:0:0:0:0:ffff:3915:5abb
57.21.90.188 0:0:0:0:0:ffff:3915:5abc
57.21.90.189 0:0:0:0:0:ffff:3915:5abd
57.21.90.190 0:0:0:0:0:ffff:3915:5abe
57.21.90.191 0:0:0:0:0:ffff:3915:5abf
57.21.90.192 0:0:0:0:0:ffff:3915:5ac0
57.21.90.193 0:0:0:0:0:ffff:3915:5ac1
57.21.90.194 0:0:0:0:0:ffff:3915:5ac2
57.21.90.195 0:0:0:0:0:ffff:3915:5ac3
57.21.90.196 0:0:0:0:0:ffff:3915:5ac4
57.21.90.197 0:0:0:0:0:ffff:3915:5ac5
57.21.90.198 0:0:0:0:0:ffff:3915:5ac6
57.21.90.199 0:0:0:0:0:ffff:3915:5ac7
57.21.90.200 0:0:0:0:0:ffff:3915:5ac8
57.21.90.201 0:0:0:0:0:ffff:3915:5ac9
57.21.90.202 0:0:0:0:0:ffff:3915:5aca
57.21.90.203 0:0:0:0:0:ffff:3915:5acb
57.21.90.204 0:0:0:0:0:ffff:3915:5acc
57.21.90.205 0:0:0:0:0:ffff:3915:5acd
57.21.90.206 0:0:0:0:0:ffff:3915:5ace
57.21.90.207 0:0:0:0:0:ffff:3915:5acf
57.21.90.208 0:0:0:0:0:ffff:3915:5ad0
57.21.90.209 0:0:0:0:0:ffff:3915:5ad1
57.21.90.210 0:0:0:0:0:ffff:3915:5ad2
57.21.90.211 0:0:0:0:0:ffff:3915:5ad3
57.21.90.212 0:0:0:0:0:ffff:3915:5ad4
57.21.90.213 0:0:0:0:0:ffff:3915:5ad5
57.21.90.214 0:0:0:0:0:ffff:3915:5ad6
57.21.90.215 0:0:0:0:0:ffff:3915:5ad7
57.21.90.216 0:0:0:0:0:ffff:3915:5ad8
57.21.90.217 0:0:0:0:0:ffff:3915:5ad9
57.21.90.218 0:0:0:0:0:ffff:3915:5ada
57.21.90.219 0:0:0:0:0:ffff:3915:5adb
57.21.90.220 0:0:0:0:0:ffff:3915:5adc
57.21.90.221 0:0:0:0:0:ffff:3915:5add
57.21.90.222 0:0:0:0:0:ffff:3915:5ade
57.21.90.223 0:0:0:0:0:ffff:3915:5adf
57.21.90.224 0:0:0:0:0:ffff:3915:5ae0
57.21.90.225 0:0:0:0:0:ffff:3915:5ae1
57.21.90.226 0:0:0:0:0:ffff:3915:5ae2
57.21.90.227 0:0:0:0:0:ffff:3915:5ae3
57.21.90.228 0:0:0:0:0:ffff:3915:5ae4
57.21.90.229 0:0:0:0:0:ffff:3915:5ae5
57.21.90.230 0:0:0:0:0:ffff:3915:5ae6
57.21.90.231 0:0:0:0:0:ffff:3915:5ae7
57.21.90.232 0:0:0:0:0:ffff:3915:5ae8
57.21.90.233 0:0:0:0:0:ffff:3915:5ae9
57.21.90.234 0:0:0:0:0:ffff:3915:5aea
57.21.90.235 0:0:0:0:0:ffff:3915:5aeb
57.21.90.236 0:0:0:0:0:ffff:3915:5aec
57.21.90.237 0:0:0:0:0:ffff:3915:5aed
57.21.90.238 0:0:0:0:0:ffff:3915:5aee
57.21.90.239 0:0:0:0:0:ffff:3915:5aef
57.21.90.240 0:0:0:0:0:ffff:3915:5af0
57.21.90.241 0:0:0:0:0:ffff:3915:5af1
57.21.90.242 0:0:0:0:0:ffff:3915:5af2
57.21.90.243 0:0:0:0:0:ffff:3915:5af3
57.21.90.244 0:0:0:0:0:ffff:3915:5af4
57.21.90.245 0:0:0:0:0:ffff:3915:5af5
57.21.90.246 0:0:0:0:0:ffff:3915:5af6
57.21.90.247 0:0:0:0:0:ffff:3915:5af7
57.21.90.248 0:0:0:0:0:ffff:3915:5af8
57.21.90.249 0:0:0:0:0:ffff:3915:5af9
57.21.90.250 0:0:0:0:0:ffff:3915:5afa
57.21.90.251 0:0:0:0:0:ffff:3915:5afb
57.21.90.252 0:0:0:0:0:ffff:3915:5afc
57.21.90.253 0:0:0:0:0:ffff:3915:5afd
57.21.90.254 0:0:0:0:0:ffff:3915:5afe
57.21.90.255 0:0:0:0:0:ffff:3915:5aff


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.