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
21.113.28.1 0:0:0:0:0:ffff:1571:1c01
21.113.28.2 0:0:0:0:0:ffff:1571:1c02
21.113.28.3 0:0:0:0:0:ffff:1571:1c03
21.113.28.4 0:0:0:0:0:ffff:1571:1c04
21.113.28.5 0:0:0:0:0:ffff:1571:1c05
21.113.28.6 0:0:0:0:0:ffff:1571:1c06
21.113.28.7 0:0:0:0:0:ffff:1571:1c07
21.113.28.8 0:0:0:0:0:ffff:1571:1c08
21.113.28.9 0:0:0:0:0:ffff:1571:1c09
21.113.28.10 0:0:0:0:0:ffff:1571:1c0a
21.113.28.11 0:0:0:0:0:ffff:1571:1c0b
21.113.28.12 0:0:0:0:0:ffff:1571:1c0c
21.113.28.13 0:0:0:0:0:ffff:1571:1c0d
21.113.28.14 0:0:0:0:0:ffff:1571:1c0e
21.113.28.15 0:0:0:0:0:ffff:1571:1c0f
21.113.28.16 0:0:0:0:0:ffff:1571:1c10
21.113.28.17 0:0:0:0:0:ffff:1571:1c11
21.113.28.18 0:0:0:0:0:ffff:1571:1c12
21.113.28.19 0:0:0:0:0:ffff:1571:1c13
21.113.28.20 0:0:0:0:0:ffff:1571:1c14
21.113.28.21 0:0:0:0:0:ffff:1571:1c15
21.113.28.22 0:0:0:0:0:ffff:1571:1c16
21.113.28.23 0:0:0:0:0:ffff:1571:1c17
21.113.28.24 0:0:0:0:0:ffff:1571:1c18
21.113.28.25 0:0:0:0:0:ffff:1571:1c19
21.113.28.26 0:0:0:0:0:ffff:1571:1c1a
21.113.28.27 0:0:0:0:0:ffff:1571:1c1b
21.113.28.28 0:0:0:0:0:ffff:1571:1c1c
21.113.28.29 0:0:0:0:0:ffff:1571:1c1d
21.113.28.30 0:0:0:0:0:ffff:1571:1c1e
21.113.28.31 0:0:0:0:0:ffff:1571:1c1f
21.113.28.32 0:0:0:0:0:ffff:1571:1c20
21.113.28.33 0:0:0:0:0:ffff:1571:1c21
21.113.28.34 0:0:0:0:0:ffff:1571:1c22
21.113.28.35 0:0:0:0:0:ffff:1571:1c23
21.113.28.36 0:0:0:0:0:ffff:1571:1c24
21.113.28.37 0:0:0:0:0:ffff:1571:1c25
21.113.28.38 0:0:0:0:0:ffff:1571:1c26
21.113.28.39 0:0:0:0:0:ffff:1571:1c27
21.113.28.40 0:0:0:0:0:ffff:1571:1c28
21.113.28.41 0:0:0:0:0:ffff:1571:1c29
21.113.28.42 0:0:0:0:0:ffff:1571:1c2a
21.113.28.43 0:0:0:0:0:ffff:1571:1c2b
21.113.28.44 0:0:0:0:0:ffff:1571:1c2c
21.113.28.45 0:0:0:0:0:ffff:1571:1c2d
21.113.28.46 0:0:0:0:0:ffff:1571:1c2e
21.113.28.47 0:0:0:0:0:ffff:1571:1c2f
21.113.28.48 0:0:0:0:0:ffff:1571:1c30
21.113.28.49 0:0:0:0:0:ffff:1571:1c31
21.113.28.50 0:0:0:0:0:ffff:1571:1c32
21.113.28.51 0:0:0:0:0:ffff:1571:1c33
21.113.28.52 0:0:0:0:0:ffff:1571:1c34
21.113.28.53 0:0:0:0:0:ffff:1571:1c35
21.113.28.54 0:0:0:0:0:ffff:1571:1c36
21.113.28.55 0:0:0:0:0:ffff:1571:1c37
21.113.28.56 0:0:0:0:0:ffff:1571:1c38
21.113.28.57 0:0:0:0:0:ffff:1571:1c39
21.113.28.58 0:0:0:0:0:ffff:1571:1c3a
21.113.28.59 0:0:0:0:0:ffff:1571:1c3b
21.113.28.60 0:0:0:0:0:ffff:1571:1c3c


21.113.28.61 0:0:0:0:0:ffff:1571:1c3d
21.113.28.62 0:0:0:0:0:ffff:1571:1c3e
21.113.28.63 0:0:0:0:0:ffff:1571:1c3f
21.113.28.64 0:0:0:0:0:ffff:1571:1c40
21.113.28.65 0:0:0:0:0:ffff:1571:1c41
21.113.28.66 0:0:0:0:0:ffff:1571:1c42
21.113.28.67 0:0:0:0:0:ffff:1571:1c43
21.113.28.68 0:0:0:0:0:ffff:1571:1c44
21.113.28.69 0:0:0:0:0:ffff:1571:1c45
21.113.28.70 0:0:0:0:0:ffff:1571:1c46
21.113.28.71 0:0:0:0:0:ffff:1571:1c47
21.113.28.72 0:0:0:0:0:ffff:1571:1c48
21.113.28.73 0:0:0:0:0:ffff:1571:1c49
21.113.28.74 0:0:0:0:0:ffff:1571:1c4a
21.113.28.75 0:0:0:0:0:ffff:1571:1c4b
21.113.28.76 0:0:0:0:0:ffff:1571:1c4c
21.113.28.77 0:0:0:0:0:ffff:1571:1c4d
21.113.28.78 0:0:0:0:0:ffff:1571:1c4e
21.113.28.79 0:0:0:0:0:ffff:1571:1c4f
21.113.28.80 0:0:0:0:0:ffff:1571:1c50
21.113.28.81 0:0:0:0:0:ffff:1571:1c51
21.113.28.82 0:0:0:0:0:ffff:1571:1c52
21.113.28.83 0:0:0:0:0:ffff:1571:1c53
21.113.28.84 0:0:0:0:0:ffff:1571:1c54
21.113.28.85 0:0:0:0:0:ffff:1571:1c55
21.113.28.86 0:0:0:0:0:ffff:1571:1c56
21.113.28.87 0:0:0:0:0:ffff:1571:1c57
21.113.28.88 0:0:0:0:0:ffff:1571:1c58
21.113.28.89 0:0:0:0:0:ffff:1571:1c59
21.113.28.90 0:0:0:0:0:ffff:1571:1c5a
21.113.28.91 0:0:0:0:0:ffff:1571:1c5b
21.113.28.92 0:0:0:0:0:ffff:1571:1c5c
21.113.28.93 0:0:0:0:0:ffff:1571:1c5d
21.113.28.94 0:0:0:0:0:ffff:1571:1c5e
21.113.28.95 0:0:0:0:0:ffff:1571:1c5f
21.113.28.96 0:0:0:0:0:ffff:1571:1c60
21.113.28.97 0:0:0:0:0:ffff:1571:1c61
21.113.28.98 0:0:0:0:0:ffff:1571:1c62
21.113.28.99 0:0:0:0:0:ffff:1571:1c63
21.113.28.100 0:0:0:0:0:ffff:1571:1c64
21.113.28.101 0:0:0:0:0:ffff:1571:1c65
21.113.28.102 0:0:0:0:0:ffff:1571:1c66
21.113.28.103 0:0:0:0:0:ffff:1571:1c67
21.113.28.104 0:0:0:0:0:ffff:1571:1c68
21.113.28.105 0:0:0:0:0:ffff:1571:1c69
21.113.28.106 0:0:0:0:0:ffff:1571:1c6a
21.113.28.107 0:0:0:0:0:ffff:1571:1c6b
21.113.28.108 0:0:0:0:0:ffff:1571:1c6c
21.113.28.109 0:0:0:0:0:ffff:1571:1c6d
21.113.28.110 0:0:0:0:0:ffff:1571:1c6e
21.113.28.111 0:0:0:0:0:ffff:1571:1c6f
21.113.28.112 0:0:0:0:0:ffff:1571:1c70
21.113.28.113 0:0:0:0:0:ffff:1571:1c71
21.113.28.114 0:0:0:0:0:ffff:1571:1c72
21.113.28.115 0:0:0:0:0:ffff:1571:1c73
21.113.28.116 0:0:0:0:0:ffff:1571:1c74
21.113.28.117 0:0:0:0:0:ffff:1571:1c75
21.113.28.118 0:0:0:0:0:ffff:1571:1c76
21.113.28.119 0:0:0:0:0:ffff:1571:1c77
21.113.28.120 0:0:0:0:0:ffff:1571:1c78


21.113.28.121 0:0:0:0:0:ffff:1571:1c79
21.113.28.122 0:0:0:0:0:ffff:1571:1c7a
21.113.28.123 0:0:0:0:0:ffff:1571:1c7b
21.113.28.124 0:0:0:0:0:ffff:1571:1c7c
21.113.28.125 0:0:0:0:0:ffff:1571:1c7d
21.113.28.126 0:0:0:0:0:ffff:1571:1c7e
21.113.28.127 0:0:0:0:0:ffff:1571:1c7f
21.113.28.128 0:0:0:0:0:ffff:1571:1c80
21.113.28.129 0:0:0:0:0:ffff:1571:1c81
21.113.28.130 0:0:0:0:0:ffff:1571:1c82
21.113.28.131 0:0:0:0:0:ffff:1571:1c83
21.113.28.132 0:0:0:0:0:ffff:1571:1c84
21.113.28.133 0:0:0:0:0:ffff:1571:1c85
21.113.28.134 0:0:0:0:0:ffff:1571:1c86
21.113.28.135 0:0:0:0:0:ffff:1571:1c87
21.113.28.136 0:0:0:0:0:ffff:1571:1c88
21.113.28.137 0:0:0:0:0:ffff:1571:1c89
21.113.28.138 0:0:0:0:0:ffff:1571:1c8a
21.113.28.139 0:0:0:0:0:ffff:1571:1c8b
21.113.28.140 0:0:0:0:0:ffff:1571:1c8c
21.113.28.141 0:0:0:0:0:ffff:1571:1c8d
21.113.28.142 0:0:0:0:0:ffff:1571:1c8e
21.113.28.143 0:0:0:0:0:ffff:1571:1c8f
21.113.28.144 0:0:0:0:0:ffff:1571:1c90
21.113.28.145 0:0:0:0:0:ffff:1571:1c91
21.113.28.146 0:0:0:0:0:ffff:1571:1c92
21.113.28.147 0:0:0:0:0:ffff:1571:1c93
21.113.28.148 0:0:0:0:0:ffff:1571:1c94
21.113.28.149 0:0:0:0:0:ffff:1571:1c95
21.113.28.150 0:0:0:0:0:ffff:1571:1c96
21.113.28.151 0:0:0:0:0:ffff:1571:1c97
21.113.28.152 0:0:0:0:0:ffff:1571:1c98
21.113.28.153 0:0:0:0:0:ffff:1571:1c99
21.113.28.154 0:0:0:0:0:ffff:1571:1c9a
21.113.28.155 0:0:0:0:0:ffff:1571:1c9b
21.113.28.156 0:0:0:0:0:ffff:1571:1c9c
21.113.28.157 0:0:0:0:0:ffff:1571:1c9d
21.113.28.158 0:0:0:0:0:ffff:1571:1c9e
21.113.28.159 0:0:0:0:0:ffff:1571:1c9f
21.113.28.160 0:0:0:0:0:ffff:1571:1ca0
21.113.28.161 0:0:0:0:0:ffff:1571:1ca1
21.113.28.162 0:0:0:0:0:ffff:1571:1ca2
21.113.28.163 0:0:0:0:0:ffff:1571:1ca3
21.113.28.164 0:0:0:0:0:ffff:1571:1ca4
21.113.28.165 0:0:0:0:0:ffff:1571:1ca5
21.113.28.166 0:0:0:0:0:ffff:1571:1ca6
21.113.28.167 0:0:0:0:0:ffff:1571:1ca7
21.113.28.168 0:0:0:0:0:ffff:1571:1ca8
21.113.28.169 0:0:0:0:0:ffff:1571:1ca9
21.113.28.170 0:0:0:0:0:ffff:1571:1caa
21.113.28.171 0:0:0:0:0:ffff:1571:1cab
21.113.28.172 0:0:0:0:0:ffff:1571:1cac
21.113.28.173 0:0:0:0:0:ffff:1571:1cad
21.113.28.174 0:0:0:0:0:ffff:1571:1cae
21.113.28.175 0:0:0:0:0:ffff:1571:1caf
21.113.28.176 0:0:0:0:0:ffff:1571:1cb0
21.113.28.177 0:0:0:0:0:ffff:1571:1cb1
21.113.28.178 0:0:0:0:0:ffff:1571:1cb2
21.113.28.179 0:0:0:0:0:ffff:1571:1cb3
21.113.28.180 0:0:0:0:0:ffff:1571:1cb4


21.113.28.181 0:0:0:0:0:ffff:1571:1cb5
21.113.28.182 0:0:0:0:0:ffff:1571:1cb6
21.113.28.183 0:0:0:0:0:ffff:1571:1cb7
21.113.28.184 0:0:0:0:0:ffff:1571:1cb8
21.113.28.185 0:0:0:0:0:ffff:1571:1cb9
21.113.28.186 0:0:0:0:0:ffff:1571:1cba
21.113.28.187 0:0:0:0:0:ffff:1571:1cbb
21.113.28.188 0:0:0:0:0:ffff:1571:1cbc
21.113.28.189 0:0:0:0:0:ffff:1571:1cbd
21.113.28.190 0:0:0:0:0:ffff:1571:1cbe
21.113.28.191 0:0:0:0:0:ffff:1571:1cbf
21.113.28.192 0:0:0:0:0:ffff:1571:1cc0
21.113.28.193 0:0:0:0:0:ffff:1571:1cc1
21.113.28.194 0:0:0:0:0:ffff:1571:1cc2
21.113.28.195 0:0:0:0:0:ffff:1571:1cc3
21.113.28.196 0:0:0:0:0:ffff:1571:1cc4
21.113.28.197 0:0:0:0:0:ffff:1571:1cc5
21.113.28.198 0:0:0:0:0:ffff:1571:1cc6
21.113.28.199 0:0:0:0:0:ffff:1571:1cc7
21.113.28.200 0:0:0:0:0:ffff:1571:1cc8
21.113.28.201 0:0:0:0:0:ffff:1571:1cc9
21.113.28.202 0:0:0:0:0:ffff:1571:1cca
21.113.28.203 0:0:0:0:0:ffff:1571:1ccb
21.113.28.204 0:0:0:0:0:ffff:1571:1ccc
21.113.28.205 0:0:0:0:0:ffff:1571:1ccd
21.113.28.206 0:0:0:0:0:ffff:1571:1cce
21.113.28.207 0:0:0:0:0:ffff:1571:1ccf
21.113.28.208 0:0:0:0:0:ffff:1571:1cd0
21.113.28.209 0:0:0:0:0:ffff:1571:1cd1
21.113.28.210 0:0:0:0:0:ffff:1571:1cd2
21.113.28.211 0:0:0:0:0:ffff:1571:1cd3
21.113.28.212 0:0:0:0:0:ffff:1571:1cd4
21.113.28.213 0:0:0:0:0:ffff:1571:1cd5
21.113.28.214 0:0:0:0:0:ffff:1571:1cd6
21.113.28.215 0:0:0:0:0:ffff:1571:1cd7
21.113.28.216 0:0:0:0:0:ffff:1571:1cd8
21.113.28.217 0:0:0:0:0:ffff:1571:1cd9
21.113.28.218 0:0:0:0:0:ffff:1571:1cda
21.113.28.219 0:0:0:0:0:ffff:1571:1cdb
21.113.28.220 0:0:0:0:0:ffff:1571:1cdc
21.113.28.221 0:0:0:0:0:ffff:1571:1cdd
21.113.28.222 0:0:0:0:0:ffff:1571:1cde
21.113.28.223 0:0:0:0:0:ffff:1571:1cdf
21.113.28.224 0:0:0:0:0:ffff:1571:1ce0
21.113.28.225 0:0:0:0:0:ffff:1571:1ce1
21.113.28.226 0:0:0:0:0:ffff:1571:1ce2
21.113.28.227 0:0:0:0:0:ffff:1571:1ce3
21.113.28.228 0:0:0:0:0:ffff:1571:1ce4
21.113.28.229 0:0:0:0:0:ffff:1571:1ce5
21.113.28.230 0:0:0:0:0:ffff:1571:1ce6
21.113.28.231 0:0:0:0:0:ffff:1571:1ce7
21.113.28.232 0:0:0:0:0:ffff:1571:1ce8
21.113.28.233 0:0:0:0:0:ffff:1571:1ce9
21.113.28.234 0:0:0:0:0:ffff:1571:1cea
21.113.28.235 0:0:0:0:0:ffff:1571:1ceb
21.113.28.236 0:0:0:0:0:ffff:1571:1cec
21.113.28.237 0:0:0:0:0:ffff:1571:1ced
21.113.28.238 0:0:0:0:0:ffff:1571:1cee
21.113.28.239 0:0:0:0:0:ffff:1571:1cef
21.113.28.240 0:0:0:0:0:ffff:1571:1cf0
21.113.28.241 0:0:0:0:0:ffff:1571:1cf1
21.113.28.242 0:0:0:0:0:ffff:1571:1cf2
21.113.28.243 0:0:0:0:0:ffff:1571:1cf3
21.113.28.244 0:0:0:0:0:ffff:1571:1cf4
21.113.28.245 0:0:0:0:0:ffff:1571:1cf5
21.113.28.246 0:0:0:0:0:ffff:1571:1cf6
21.113.28.247 0:0:0:0:0:ffff:1571:1cf7
21.113.28.248 0:0:0:0:0:ffff:1571:1cf8
21.113.28.249 0:0:0:0:0:ffff:1571:1cf9
21.113.28.250 0:0:0:0:0:ffff:1571:1cfa
21.113.28.251 0:0:0:0:0:ffff:1571:1cfb
21.113.28.252 0:0:0:0:0:ffff:1571:1cfc
21.113.28.253 0:0:0:0:0:ffff:1571:1cfd
21.113.28.254 0:0:0:0:0:ffff:1571:1cfe
21.113.28.255 0:0:0:0:0:ffff:1571:1cff


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.