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
21.15.59.1 0:0:0:0:0:ffff:150f:3b01
21.15.59.2 0:0:0:0:0:ffff:150f:3b02
21.15.59.3 0:0:0:0:0:ffff:150f:3b03
21.15.59.4 0:0:0:0:0:ffff:150f:3b04
21.15.59.5 0:0:0:0:0:ffff:150f:3b05
21.15.59.6 0:0:0:0:0:ffff:150f:3b06
21.15.59.7 0:0:0:0:0:ffff:150f:3b07
21.15.59.8 0:0:0:0:0:ffff:150f:3b08
21.15.59.9 0:0:0:0:0:ffff:150f:3b09
21.15.59.10 0:0:0:0:0:ffff:150f:3b0a
21.15.59.11 0:0:0:0:0:ffff:150f:3b0b
21.15.59.12 0:0:0:0:0:ffff:150f:3b0c
21.15.59.13 0:0:0:0:0:ffff:150f:3b0d
21.15.59.14 0:0:0:0:0:ffff:150f:3b0e
21.15.59.15 0:0:0:0:0:ffff:150f:3b0f
21.15.59.16 0:0:0:0:0:ffff:150f:3b10
21.15.59.17 0:0:0:0:0:ffff:150f:3b11
21.15.59.18 0:0:0:0:0:ffff:150f:3b12
21.15.59.19 0:0:0:0:0:ffff:150f:3b13
21.15.59.20 0:0:0:0:0:ffff:150f:3b14
21.15.59.21 0:0:0:0:0:ffff:150f:3b15
21.15.59.22 0:0:0:0:0:ffff:150f:3b16
21.15.59.23 0:0:0:0:0:ffff:150f:3b17
21.15.59.24 0:0:0:0:0:ffff:150f:3b18
21.15.59.25 0:0:0:0:0:ffff:150f:3b19
21.15.59.26 0:0:0:0:0:ffff:150f:3b1a
21.15.59.27 0:0:0:0:0:ffff:150f:3b1b
21.15.59.28 0:0:0:0:0:ffff:150f:3b1c
21.15.59.29 0:0:0:0:0:ffff:150f:3b1d
21.15.59.30 0:0:0:0:0:ffff:150f:3b1e
21.15.59.31 0:0:0:0:0:ffff:150f:3b1f
21.15.59.32 0:0:0:0:0:ffff:150f:3b20
21.15.59.33 0:0:0:0:0:ffff:150f:3b21
21.15.59.34 0:0:0:0:0:ffff:150f:3b22
21.15.59.35 0:0:0:0:0:ffff:150f:3b23
21.15.59.36 0:0:0:0:0:ffff:150f:3b24
21.15.59.37 0:0:0:0:0:ffff:150f:3b25
21.15.59.38 0:0:0:0:0:ffff:150f:3b26
21.15.59.39 0:0:0:0:0:ffff:150f:3b27
21.15.59.40 0:0:0:0:0:ffff:150f:3b28
21.15.59.41 0:0:0:0:0:ffff:150f:3b29
21.15.59.42 0:0:0:0:0:ffff:150f:3b2a
21.15.59.43 0:0:0:0:0:ffff:150f:3b2b
21.15.59.44 0:0:0:0:0:ffff:150f:3b2c
21.15.59.45 0:0:0:0:0:ffff:150f:3b2d
21.15.59.46 0:0:0:0:0:ffff:150f:3b2e
21.15.59.47 0:0:0:0:0:ffff:150f:3b2f
21.15.59.48 0:0:0:0:0:ffff:150f:3b30
21.15.59.49 0:0:0:0:0:ffff:150f:3b31
21.15.59.50 0:0:0:0:0:ffff:150f:3b32
21.15.59.51 0:0:0:0:0:ffff:150f:3b33
21.15.59.52 0:0:0:0:0:ffff:150f:3b34
21.15.59.53 0:0:0:0:0:ffff:150f:3b35
21.15.59.54 0:0:0:0:0:ffff:150f:3b36
21.15.59.55 0:0:0:0:0:ffff:150f:3b37
21.15.59.56 0:0:0:0:0:ffff:150f:3b38
21.15.59.57 0:0:0:0:0:ffff:150f:3b39
21.15.59.58 0:0:0:0:0:ffff:150f:3b3a
21.15.59.59 0:0:0:0:0:ffff:150f:3b3b
21.15.59.60 0:0:0:0:0:ffff:150f:3b3c


21.15.59.61 0:0:0:0:0:ffff:150f:3b3d
21.15.59.62 0:0:0:0:0:ffff:150f:3b3e
21.15.59.63 0:0:0:0:0:ffff:150f:3b3f
21.15.59.64 0:0:0:0:0:ffff:150f:3b40
21.15.59.65 0:0:0:0:0:ffff:150f:3b41
21.15.59.66 0:0:0:0:0:ffff:150f:3b42
21.15.59.67 0:0:0:0:0:ffff:150f:3b43
21.15.59.68 0:0:0:0:0:ffff:150f:3b44
21.15.59.69 0:0:0:0:0:ffff:150f:3b45
21.15.59.70 0:0:0:0:0:ffff:150f:3b46
21.15.59.71 0:0:0:0:0:ffff:150f:3b47
21.15.59.72 0:0:0:0:0:ffff:150f:3b48
21.15.59.73 0:0:0:0:0:ffff:150f:3b49
21.15.59.74 0:0:0:0:0:ffff:150f:3b4a
21.15.59.75 0:0:0:0:0:ffff:150f:3b4b
21.15.59.76 0:0:0:0:0:ffff:150f:3b4c
21.15.59.77 0:0:0:0:0:ffff:150f:3b4d
21.15.59.78 0:0:0:0:0:ffff:150f:3b4e
21.15.59.79 0:0:0:0:0:ffff:150f:3b4f
21.15.59.80 0:0:0:0:0:ffff:150f:3b50
21.15.59.81 0:0:0:0:0:ffff:150f:3b51
21.15.59.82 0:0:0:0:0:ffff:150f:3b52
21.15.59.83 0:0:0:0:0:ffff:150f:3b53
21.15.59.84 0:0:0:0:0:ffff:150f:3b54
21.15.59.85 0:0:0:0:0:ffff:150f:3b55
21.15.59.86 0:0:0:0:0:ffff:150f:3b56
21.15.59.87 0:0:0:0:0:ffff:150f:3b57
21.15.59.88 0:0:0:0:0:ffff:150f:3b58
21.15.59.89 0:0:0:0:0:ffff:150f:3b59
21.15.59.90 0:0:0:0:0:ffff:150f:3b5a
21.15.59.91 0:0:0:0:0:ffff:150f:3b5b
21.15.59.92 0:0:0:0:0:ffff:150f:3b5c
21.15.59.93 0:0:0:0:0:ffff:150f:3b5d
21.15.59.94 0:0:0:0:0:ffff:150f:3b5e
21.15.59.95 0:0:0:0:0:ffff:150f:3b5f
21.15.59.96 0:0:0:0:0:ffff:150f:3b60
21.15.59.97 0:0:0:0:0:ffff:150f:3b61
21.15.59.98 0:0:0:0:0:ffff:150f:3b62
21.15.59.99 0:0:0:0:0:ffff:150f:3b63
21.15.59.100 0:0:0:0:0:ffff:150f:3b64
21.15.59.101 0:0:0:0:0:ffff:150f:3b65
21.15.59.102 0:0:0:0:0:ffff:150f:3b66
21.15.59.103 0:0:0:0:0:ffff:150f:3b67
21.15.59.104 0:0:0:0:0:ffff:150f:3b68
21.15.59.105 0:0:0:0:0:ffff:150f:3b69
21.15.59.106 0:0:0:0:0:ffff:150f:3b6a
21.15.59.107 0:0:0:0:0:ffff:150f:3b6b
21.15.59.108 0:0:0:0:0:ffff:150f:3b6c
21.15.59.109 0:0:0:0:0:ffff:150f:3b6d
21.15.59.110 0:0:0:0:0:ffff:150f:3b6e
21.15.59.111 0:0:0:0:0:ffff:150f:3b6f
21.15.59.112 0:0:0:0:0:ffff:150f:3b70
21.15.59.113 0:0:0:0:0:ffff:150f:3b71
21.15.59.114 0:0:0:0:0:ffff:150f:3b72
21.15.59.115 0:0:0:0:0:ffff:150f:3b73
21.15.59.116 0:0:0:0:0:ffff:150f:3b74
21.15.59.117 0:0:0:0:0:ffff:150f:3b75
21.15.59.118 0:0:0:0:0:ffff:150f:3b76
21.15.59.119 0:0:0:0:0:ffff:150f:3b77
21.15.59.120 0:0:0:0:0:ffff:150f:3b78


21.15.59.121 0:0:0:0:0:ffff:150f:3b79
21.15.59.122 0:0:0:0:0:ffff:150f:3b7a
21.15.59.123 0:0:0:0:0:ffff:150f:3b7b
21.15.59.124 0:0:0:0:0:ffff:150f:3b7c
21.15.59.125 0:0:0:0:0:ffff:150f:3b7d
21.15.59.126 0:0:0:0:0:ffff:150f:3b7e
21.15.59.127 0:0:0:0:0:ffff:150f:3b7f
21.15.59.128 0:0:0:0:0:ffff:150f:3b80
21.15.59.129 0:0:0:0:0:ffff:150f:3b81
21.15.59.130 0:0:0:0:0:ffff:150f:3b82
21.15.59.131 0:0:0:0:0:ffff:150f:3b83
21.15.59.132 0:0:0:0:0:ffff:150f:3b84
21.15.59.133 0:0:0:0:0:ffff:150f:3b85
21.15.59.134 0:0:0:0:0:ffff:150f:3b86
21.15.59.135 0:0:0:0:0:ffff:150f:3b87
21.15.59.136 0:0:0:0:0:ffff:150f:3b88
21.15.59.137 0:0:0:0:0:ffff:150f:3b89
21.15.59.138 0:0:0:0:0:ffff:150f:3b8a
21.15.59.139 0:0:0:0:0:ffff:150f:3b8b
21.15.59.140 0:0:0:0:0:ffff:150f:3b8c
21.15.59.141 0:0:0:0:0:ffff:150f:3b8d
21.15.59.142 0:0:0:0:0:ffff:150f:3b8e
21.15.59.143 0:0:0:0:0:ffff:150f:3b8f
21.15.59.144 0:0:0:0:0:ffff:150f:3b90
21.15.59.145 0:0:0:0:0:ffff:150f:3b91
21.15.59.146 0:0:0:0:0:ffff:150f:3b92
21.15.59.147 0:0:0:0:0:ffff:150f:3b93
21.15.59.148 0:0:0:0:0:ffff:150f:3b94
21.15.59.149 0:0:0:0:0:ffff:150f:3b95
21.15.59.150 0:0:0:0:0:ffff:150f:3b96
21.15.59.151 0:0:0:0:0:ffff:150f:3b97
21.15.59.152 0:0:0:0:0:ffff:150f:3b98
21.15.59.153 0:0:0:0:0:ffff:150f:3b99
21.15.59.154 0:0:0:0:0:ffff:150f:3b9a
21.15.59.155 0:0:0:0:0:ffff:150f:3b9b
21.15.59.156 0:0:0:0:0:ffff:150f:3b9c
21.15.59.157 0:0:0:0:0:ffff:150f:3b9d
21.15.59.158 0:0:0:0:0:ffff:150f:3b9e
21.15.59.159 0:0:0:0:0:ffff:150f:3b9f
21.15.59.160 0:0:0:0:0:ffff:150f:3ba0
21.15.59.161 0:0:0:0:0:ffff:150f:3ba1
21.15.59.162 0:0:0:0:0:ffff:150f:3ba2
21.15.59.163 0:0:0:0:0:ffff:150f:3ba3
21.15.59.164 0:0:0:0:0:ffff:150f:3ba4
21.15.59.165 0:0:0:0:0:ffff:150f:3ba5
21.15.59.166 0:0:0:0:0:ffff:150f:3ba6
21.15.59.167 0:0:0:0:0:ffff:150f:3ba7
21.15.59.168 0:0:0:0:0:ffff:150f:3ba8
21.15.59.169 0:0:0:0:0:ffff:150f:3ba9
21.15.59.170 0:0:0:0:0:ffff:150f:3baa
21.15.59.171 0:0:0:0:0:ffff:150f:3bab
21.15.59.172 0:0:0:0:0:ffff:150f:3bac
21.15.59.173 0:0:0:0:0:ffff:150f:3bad
21.15.59.174 0:0:0:0:0:ffff:150f:3bae
21.15.59.175 0:0:0:0:0:ffff:150f:3baf
21.15.59.176 0:0:0:0:0:ffff:150f:3bb0
21.15.59.177 0:0:0:0:0:ffff:150f:3bb1
21.15.59.178 0:0:0:0:0:ffff:150f:3bb2
21.15.59.179 0:0:0:0:0:ffff:150f:3bb3
21.15.59.180 0:0:0:0:0:ffff:150f:3bb4


21.15.59.181 0:0:0:0:0:ffff:150f:3bb5
21.15.59.182 0:0:0:0:0:ffff:150f:3bb6
21.15.59.183 0:0:0:0:0:ffff:150f:3bb7
21.15.59.184 0:0:0:0:0:ffff:150f:3bb8
21.15.59.185 0:0:0:0:0:ffff:150f:3bb9
21.15.59.186 0:0:0:0:0:ffff:150f:3bba
21.15.59.187 0:0:0:0:0:ffff:150f:3bbb
21.15.59.188 0:0:0:0:0:ffff:150f:3bbc
21.15.59.189 0:0:0:0:0:ffff:150f:3bbd
21.15.59.190 0:0:0:0:0:ffff:150f:3bbe
21.15.59.191 0:0:0:0:0:ffff:150f:3bbf
21.15.59.192 0:0:0:0:0:ffff:150f:3bc0
21.15.59.193 0:0:0:0:0:ffff:150f:3bc1
21.15.59.194 0:0:0:0:0:ffff:150f:3bc2
21.15.59.195 0:0:0:0:0:ffff:150f:3bc3
21.15.59.196 0:0:0:0:0:ffff:150f:3bc4
21.15.59.197 0:0:0:0:0:ffff:150f:3bc5
21.15.59.198 0:0:0:0:0:ffff:150f:3bc6
21.15.59.199 0:0:0:0:0:ffff:150f:3bc7
21.15.59.200 0:0:0:0:0:ffff:150f:3bc8
21.15.59.201 0:0:0:0:0:ffff:150f:3bc9
21.15.59.202 0:0:0:0:0:ffff:150f:3bca
21.15.59.203 0:0:0:0:0:ffff:150f:3bcb
21.15.59.204 0:0:0:0:0:ffff:150f:3bcc
21.15.59.205 0:0:0:0:0:ffff:150f:3bcd
21.15.59.206 0:0:0:0:0:ffff:150f:3bce
21.15.59.207 0:0:0:0:0:ffff:150f:3bcf
21.15.59.208 0:0:0:0:0:ffff:150f:3bd0
21.15.59.209 0:0:0:0:0:ffff:150f:3bd1
21.15.59.210 0:0:0:0:0:ffff:150f:3bd2
21.15.59.211 0:0:0:0:0:ffff:150f:3bd3
21.15.59.212 0:0:0:0:0:ffff:150f:3bd4
21.15.59.213 0:0:0:0:0:ffff:150f:3bd5
21.15.59.214 0:0:0:0:0:ffff:150f:3bd6
21.15.59.215 0:0:0:0:0:ffff:150f:3bd7
21.15.59.216 0:0:0:0:0:ffff:150f:3bd8
21.15.59.217 0:0:0:0:0:ffff:150f:3bd9
21.15.59.218 0:0:0:0:0:ffff:150f:3bda
21.15.59.219 0:0:0:0:0:ffff:150f:3bdb
21.15.59.220 0:0:0:0:0:ffff:150f:3bdc
21.15.59.221 0:0:0:0:0:ffff:150f:3bdd
21.15.59.222 0:0:0:0:0:ffff:150f:3bde
21.15.59.223 0:0:0:0:0:ffff:150f:3bdf
21.15.59.224 0:0:0:0:0:ffff:150f:3be0
21.15.59.225 0:0:0:0:0:ffff:150f:3be1
21.15.59.226 0:0:0:0:0:ffff:150f:3be2
21.15.59.227 0:0:0:0:0:ffff:150f:3be3
21.15.59.228 0:0:0:0:0:ffff:150f:3be4
21.15.59.229 0:0:0:0:0:ffff:150f:3be5
21.15.59.230 0:0:0:0:0:ffff:150f:3be6
21.15.59.231 0:0:0:0:0:ffff:150f:3be7
21.15.59.232 0:0:0:0:0:ffff:150f:3be8
21.15.59.233 0:0:0:0:0:ffff:150f:3be9
21.15.59.234 0:0:0:0:0:ffff:150f:3bea
21.15.59.235 0:0:0:0:0:ffff:150f:3beb
21.15.59.236 0:0:0:0:0:ffff:150f:3bec
21.15.59.237 0:0:0:0:0:ffff:150f:3bed
21.15.59.238 0:0:0:0:0:ffff:150f:3bee
21.15.59.239 0:0:0:0:0:ffff:150f:3bef
21.15.59.240 0:0:0:0:0:ffff:150f:3bf0
21.15.59.241 0:0:0:0:0:ffff:150f:3bf1
21.15.59.242 0:0:0:0:0:ffff:150f:3bf2
21.15.59.243 0:0:0:0:0:ffff:150f:3bf3
21.15.59.244 0:0:0:0:0:ffff:150f:3bf4
21.15.59.245 0:0:0:0:0:ffff:150f:3bf5
21.15.59.246 0:0:0:0:0:ffff:150f:3bf6
21.15.59.247 0:0:0:0:0:ffff:150f:3bf7
21.15.59.248 0:0:0:0:0:ffff:150f:3bf8
21.15.59.249 0:0:0:0:0:ffff:150f:3bf9
21.15.59.250 0:0:0:0:0:ffff:150f:3bfa
21.15.59.251 0:0:0:0:0:ffff:150f:3bfb
21.15.59.252 0:0:0:0:0:ffff:150f:3bfc
21.15.59.253 0:0:0:0:0:ffff:150f:3bfd
21.15.59.254 0:0:0:0:0:ffff:150f:3bfe
21.15.59.255 0:0:0:0:0:ffff:150f:3bff


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.