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
21.30.61.1 0:0:0:0:0:ffff:151e:3d01
21.30.61.2 0:0:0:0:0:ffff:151e:3d02
21.30.61.3 0:0:0:0:0:ffff:151e:3d03
21.30.61.4 0:0:0:0:0:ffff:151e:3d04
21.30.61.5 0:0:0:0:0:ffff:151e:3d05
21.30.61.6 0:0:0:0:0:ffff:151e:3d06
21.30.61.7 0:0:0:0:0:ffff:151e:3d07
21.30.61.8 0:0:0:0:0:ffff:151e:3d08
21.30.61.9 0:0:0:0:0:ffff:151e:3d09
21.30.61.10 0:0:0:0:0:ffff:151e:3d0a
21.30.61.11 0:0:0:0:0:ffff:151e:3d0b
21.30.61.12 0:0:0:0:0:ffff:151e:3d0c
21.30.61.13 0:0:0:0:0:ffff:151e:3d0d
21.30.61.14 0:0:0:0:0:ffff:151e:3d0e
21.30.61.15 0:0:0:0:0:ffff:151e:3d0f
21.30.61.16 0:0:0:0:0:ffff:151e:3d10
21.30.61.17 0:0:0:0:0:ffff:151e:3d11
21.30.61.18 0:0:0:0:0:ffff:151e:3d12
21.30.61.19 0:0:0:0:0:ffff:151e:3d13
21.30.61.20 0:0:0:0:0:ffff:151e:3d14
21.30.61.21 0:0:0:0:0:ffff:151e:3d15
21.30.61.22 0:0:0:0:0:ffff:151e:3d16
21.30.61.23 0:0:0:0:0:ffff:151e:3d17
21.30.61.24 0:0:0:0:0:ffff:151e:3d18
21.30.61.25 0:0:0:0:0:ffff:151e:3d19
21.30.61.26 0:0:0:0:0:ffff:151e:3d1a
21.30.61.27 0:0:0:0:0:ffff:151e:3d1b
21.30.61.28 0:0:0:0:0:ffff:151e:3d1c
21.30.61.29 0:0:0:0:0:ffff:151e:3d1d
21.30.61.30 0:0:0:0:0:ffff:151e:3d1e
21.30.61.31 0:0:0:0:0:ffff:151e:3d1f
21.30.61.32 0:0:0:0:0:ffff:151e:3d20
21.30.61.33 0:0:0:0:0:ffff:151e:3d21
21.30.61.34 0:0:0:0:0:ffff:151e:3d22
21.30.61.35 0:0:0:0:0:ffff:151e:3d23
21.30.61.36 0:0:0:0:0:ffff:151e:3d24
21.30.61.37 0:0:0:0:0:ffff:151e:3d25
21.30.61.38 0:0:0:0:0:ffff:151e:3d26
21.30.61.39 0:0:0:0:0:ffff:151e:3d27
21.30.61.40 0:0:0:0:0:ffff:151e:3d28
21.30.61.41 0:0:0:0:0:ffff:151e:3d29
21.30.61.42 0:0:0:0:0:ffff:151e:3d2a
21.30.61.43 0:0:0:0:0:ffff:151e:3d2b
21.30.61.44 0:0:0:0:0:ffff:151e:3d2c
21.30.61.45 0:0:0:0:0:ffff:151e:3d2d
21.30.61.46 0:0:0:0:0:ffff:151e:3d2e
21.30.61.47 0:0:0:0:0:ffff:151e:3d2f
21.30.61.48 0:0:0:0:0:ffff:151e:3d30
21.30.61.49 0:0:0:0:0:ffff:151e:3d31
21.30.61.50 0:0:0:0:0:ffff:151e:3d32
21.30.61.51 0:0:0:0:0:ffff:151e:3d33
21.30.61.52 0:0:0:0:0:ffff:151e:3d34
21.30.61.53 0:0:0:0:0:ffff:151e:3d35
21.30.61.54 0:0:0:0:0:ffff:151e:3d36
21.30.61.55 0:0:0:0:0:ffff:151e:3d37
21.30.61.56 0:0:0:0:0:ffff:151e:3d38
21.30.61.57 0:0:0:0:0:ffff:151e:3d39
21.30.61.58 0:0:0:0:0:ffff:151e:3d3a
21.30.61.59 0:0:0:0:0:ffff:151e:3d3b
21.30.61.60 0:0:0:0:0:ffff:151e:3d3c


21.30.61.61 0:0:0:0:0:ffff:151e:3d3d
21.30.61.62 0:0:0:0:0:ffff:151e:3d3e
21.30.61.63 0:0:0:0:0:ffff:151e:3d3f
21.30.61.64 0:0:0:0:0:ffff:151e:3d40
21.30.61.65 0:0:0:0:0:ffff:151e:3d41
21.30.61.66 0:0:0:0:0:ffff:151e:3d42
21.30.61.67 0:0:0:0:0:ffff:151e:3d43
21.30.61.68 0:0:0:0:0:ffff:151e:3d44
21.30.61.69 0:0:0:0:0:ffff:151e:3d45
21.30.61.70 0:0:0:0:0:ffff:151e:3d46
21.30.61.71 0:0:0:0:0:ffff:151e:3d47
21.30.61.72 0:0:0:0:0:ffff:151e:3d48
21.30.61.73 0:0:0:0:0:ffff:151e:3d49
21.30.61.74 0:0:0:0:0:ffff:151e:3d4a
21.30.61.75 0:0:0:0:0:ffff:151e:3d4b
21.30.61.76 0:0:0:0:0:ffff:151e:3d4c
21.30.61.77 0:0:0:0:0:ffff:151e:3d4d
21.30.61.78 0:0:0:0:0:ffff:151e:3d4e
21.30.61.79 0:0:0:0:0:ffff:151e:3d4f
21.30.61.80 0:0:0:0:0:ffff:151e:3d50
21.30.61.81 0:0:0:0:0:ffff:151e:3d51
21.30.61.82 0:0:0:0:0:ffff:151e:3d52
21.30.61.83 0:0:0:0:0:ffff:151e:3d53
21.30.61.84 0:0:0:0:0:ffff:151e:3d54
21.30.61.85 0:0:0:0:0:ffff:151e:3d55
21.30.61.86 0:0:0:0:0:ffff:151e:3d56
21.30.61.87 0:0:0:0:0:ffff:151e:3d57
21.30.61.88 0:0:0:0:0:ffff:151e:3d58
21.30.61.89 0:0:0:0:0:ffff:151e:3d59
21.30.61.90 0:0:0:0:0:ffff:151e:3d5a
21.30.61.91 0:0:0:0:0:ffff:151e:3d5b
21.30.61.92 0:0:0:0:0:ffff:151e:3d5c
21.30.61.93 0:0:0:0:0:ffff:151e:3d5d
21.30.61.94 0:0:0:0:0:ffff:151e:3d5e
21.30.61.95 0:0:0:0:0:ffff:151e:3d5f
21.30.61.96 0:0:0:0:0:ffff:151e:3d60
21.30.61.97 0:0:0:0:0:ffff:151e:3d61
21.30.61.98 0:0:0:0:0:ffff:151e:3d62
21.30.61.99 0:0:0:0:0:ffff:151e:3d63
21.30.61.100 0:0:0:0:0:ffff:151e:3d64
21.30.61.101 0:0:0:0:0:ffff:151e:3d65
21.30.61.102 0:0:0:0:0:ffff:151e:3d66
21.30.61.103 0:0:0:0:0:ffff:151e:3d67
21.30.61.104 0:0:0:0:0:ffff:151e:3d68
21.30.61.105 0:0:0:0:0:ffff:151e:3d69
21.30.61.106 0:0:0:0:0:ffff:151e:3d6a
21.30.61.107 0:0:0:0:0:ffff:151e:3d6b
21.30.61.108 0:0:0:0:0:ffff:151e:3d6c
21.30.61.109 0:0:0:0:0:ffff:151e:3d6d
21.30.61.110 0:0:0:0:0:ffff:151e:3d6e
21.30.61.111 0:0:0:0:0:ffff:151e:3d6f
21.30.61.112 0:0:0:0:0:ffff:151e:3d70
21.30.61.113 0:0:0:0:0:ffff:151e:3d71
21.30.61.114 0:0:0:0:0:ffff:151e:3d72
21.30.61.115 0:0:0:0:0:ffff:151e:3d73
21.30.61.116 0:0:0:0:0:ffff:151e:3d74
21.30.61.117 0:0:0:0:0:ffff:151e:3d75
21.30.61.118 0:0:0:0:0:ffff:151e:3d76
21.30.61.119 0:0:0:0:0:ffff:151e:3d77
21.30.61.120 0:0:0:0:0:ffff:151e:3d78


21.30.61.121 0:0:0:0:0:ffff:151e:3d79
21.30.61.122 0:0:0:0:0:ffff:151e:3d7a
21.30.61.123 0:0:0:0:0:ffff:151e:3d7b
21.30.61.124 0:0:0:0:0:ffff:151e:3d7c
21.30.61.125 0:0:0:0:0:ffff:151e:3d7d
21.30.61.126 0:0:0:0:0:ffff:151e:3d7e
21.30.61.127 0:0:0:0:0:ffff:151e:3d7f
21.30.61.128 0:0:0:0:0:ffff:151e:3d80
21.30.61.129 0:0:0:0:0:ffff:151e:3d81
21.30.61.130 0:0:0:0:0:ffff:151e:3d82
21.30.61.131 0:0:0:0:0:ffff:151e:3d83
21.30.61.132 0:0:0:0:0:ffff:151e:3d84
21.30.61.133 0:0:0:0:0:ffff:151e:3d85
21.30.61.134 0:0:0:0:0:ffff:151e:3d86
21.30.61.135 0:0:0:0:0:ffff:151e:3d87
21.30.61.136 0:0:0:0:0:ffff:151e:3d88
21.30.61.137 0:0:0:0:0:ffff:151e:3d89
21.30.61.138 0:0:0:0:0:ffff:151e:3d8a
21.30.61.139 0:0:0:0:0:ffff:151e:3d8b
21.30.61.140 0:0:0:0:0:ffff:151e:3d8c
21.30.61.141 0:0:0:0:0:ffff:151e:3d8d
21.30.61.142 0:0:0:0:0:ffff:151e:3d8e
21.30.61.143 0:0:0:0:0:ffff:151e:3d8f
21.30.61.144 0:0:0:0:0:ffff:151e:3d90
21.30.61.145 0:0:0:0:0:ffff:151e:3d91
21.30.61.146 0:0:0:0:0:ffff:151e:3d92
21.30.61.147 0:0:0:0:0:ffff:151e:3d93
21.30.61.148 0:0:0:0:0:ffff:151e:3d94
21.30.61.149 0:0:0:0:0:ffff:151e:3d95
21.30.61.150 0:0:0:0:0:ffff:151e:3d96
21.30.61.151 0:0:0:0:0:ffff:151e:3d97
21.30.61.152 0:0:0:0:0:ffff:151e:3d98
21.30.61.153 0:0:0:0:0:ffff:151e:3d99
21.30.61.154 0:0:0:0:0:ffff:151e:3d9a
21.30.61.155 0:0:0:0:0:ffff:151e:3d9b
21.30.61.156 0:0:0:0:0:ffff:151e:3d9c
21.30.61.157 0:0:0:0:0:ffff:151e:3d9d
21.30.61.158 0:0:0:0:0:ffff:151e:3d9e
21.30.61.159 0:0:0:0:0:ffff:151e:3d9f
21.30.61.160 0:0:0:0:0:ffff:151e:3da0
21.30.61.161 0:0:0:0:0:ffff:151e:3da1
21.30.61.162 0:0:0:0:0:ffff:151e:3da2
21.30.61.163 0:0:0:0:0:ffff:151e:3da3
21.30.61.164 0:0:0:0:0:ffff:151e:3da4
21.30.61.165 0:0:0:0:0:ffff:151e:3da5
21.30.61.166 0:0:0:0:0:ffff:151e:3da6
21.30.61.167 0:0:0:0:0:ffff:151e:3da7
21.30.61.168 0:0:0:0:0:ffff:151e:3da8
21.30.61.169 0:0:0:0:0:ffff:151e:3da9
21.30.61.170 0:0:0:0:0:ffff:151e:3daa
21.30.61.171 0:0:0:0:0:ffff:151e:3dab
21.30.61.172 0:0:0:0:0:ffff:151e:3dac
21.30.61.173 0:0:0:0:0:ffff:151e:3dad
21.30.61.174 0:0:0:0:0:ffff:151e:3dae
21.30.61.175 0:0:0:0:0:ffff:151e:3daf
21.30.61.176 0:0:0:0:0:ffff:151e:3db0
21.30.61.177 0:0:0:0:0:ffff:151e:3db1
21.30.61.178 0:0:0:0:0:ffff:151e:3db2
21.30.61.179 0:0:0:0:0:ffff:151e:3db3
21.30.61.180 0:0:0:0:0:ffff:151e:3db4


21.30.61.181 0:0:0:0:0:ffff:151e:3db5
21.30.61.182 0:0:0:0:0:ffff:151e:3db6
21.30.61.183 0:0:0:0:0:ffff:151e:3db7
21.30.61.184 0:0:0:0:0:ffff:151e:3db8
21.30.61.185 0:0:0:0:0:ffff:151e:3db9
21.30.61.186 0:0:0:0:0:ffff:151e:3dba
21.30.61.187 0:0:0:0:0:ffff:151e:3dbb
21.30.61.188 0:0:0:0:0:ffff:151e:3dbc
21.30.61.189 0:0:0:0:0:ffff:151e:3dbd
21.30.61.190 0:0:0:0:0:ffff:151e:3dbe
21.30.61.191 0:0:0:0:0:ffff:151e:3dbf
21.30.61.192 0:0:0:0:0:ffff:151e:3dc0
21.30.61.193 0:0:0:0:0:ffff:151e:3dc1
21.30.61.194 0:0:0:0:0:ffff:151e:3dc2
21.30.61.195 0:0:0:0:0:ffff:151e:3dc3
21.30.61.196 0:0:0:0:0:ffff:151e:3dc4
21.30.61.197 0:0:0:0:0:ffff:151e:3dc5
21.30.61.198 0:0:0:0:0:ffff:151e:3dc6
21.30.61.199 0:0:0:0:0:ffff:151e:3dc7
21.30.61.200 0:0:0:0:0:ffff:151e:3dc8
21.30.61.201 0:0:0:0:0:ffff:151e:3dc9
21.30.61.202 0:0:0:0:0:ffff:151e:3dca
21.30.61.203 0:0:0:0:0:ffff:151e:3dcb
21.30.61.204 0:0:0:0:0:ffff:151e:3dcc
21.30.61.205 0:0:0:0:0:ffff:151e:3dcd
21.30.61.206 0:0:0:0:0:ffff:151e:3dce
21.30.61.207 0:0:0:0:0:ffff:151e:3dcf
21.30.61.208 0:0:0:0:0:ffff:151e:3dd0
21.30.61.209 0:0:0:0:0:ffff:151e:3dd1
21.30.61.210 0:0:0:0:0:ffff:151e:3dd2
21.30.61.211 0:0:0:0:0:ffff:151e:3dd3
21.30.61.212 0:0:0:0:0:ffff:151e:3dd4
21.30.61.213 0:0:0:0:0:ffff:151e:3dd5
21.30.61.214 0:0:0:0:0:ffff:151e:3dd6
21.30.61.215 0:0:0:0:0:ffff:151e:3dd7
21.30.61.216 0:0:0:0:0:ffff:151e:3dd8
21.30.61.217 0:0:0:0:0:ffff:151e:3dd9
21.30.61.218 0:0:0:0:0:ffff:151e:3dda
21.30.61.219 0:0:0:0:0:ffff:151e:3ddb
21.30.61.220 0:0:0:0:0:ffff:151e:3ddc
21.30.61.221 0:0:0:0:0:ffff:151e:3ddd
21.30.61.222 0:0:0:0:0:ffff:151e:3dde
21.30.61.223 0:0:0:0:0:ffff:151e:3ddf
21.30.61.224 0:0:0:0:0:ffff:151e:3de0
21.30.61.225 0:0:0:0:0:ffff:151e:3de1
21.30.61.226 0:0:0:0:0:ffff:151e:3de2
21.30.61.227 0:0:0:0:0:ffff:151e:3de3
21.30.61.228 0:0:0:0:0:ffff:151e:3de4
21.30.61.229 0:0:0:0:0:ffff:151e:3de5
21.30.61.230 0:0:0:0:0:ffff:151e:3de6
21.30.61.231 0:0:0:0:0:ffff:151e:3de7
21.30.61.232 0:0:0:0:0:ffff:151e:3de8
21.30.61.233 0:0:0:0:0:ffff:151e:3de9
21.30.61.234 0:0:0:0:0:ffff:151e:3dea
21.30.61.235 0:0:0:0:0:ffff:151e:3deb
21.30.61.236 0:0:0:0:0:ffff:151e:3dec
21.30.61.237 0:0:0:0:0:ffff:151e:3ded
21.30.61.238 0:0:0:0:0:ffff:151e:3dee
21.30.61.239 0:0:0:0:0:ffff:151e:3def
21.30.61.240 0:0:0:0:0:ffff:151e:3df0
21.30.61.241 0:0:0:0:0:ffff:151e:3df1
21.30.61.242 0:0:0:0:0:ffff:151e:3df2
21.30.61.243 0:0:0:0:0:ffff:151e:3df3
21.30.61.244 0:0:0:0:0:ffff:151e:3df4
21.30.61.245 0:0:0:0:0:ffff:151e:3df5
21.30.61.246 0:0:0:0:0:ffff:151e:3df6
21.30.61.247 0:0:0:0:0:ffff:151e:3df7
21.30.61.248 0:0:0:0:0:ffff:151e:3df8
21.30.61.249 0:0:0:0:0:ffff:151e:3df9
21.30.61.250 0:0:0:0:0:ffff:151e:3dfa
21.30.61.251 0:0:0:0:0:ffff:151e:3dfb
21.30.61.252 0:0:0:0:0:ffff:151e:3dfc
21.30.61.253 0:0:0:0:0:ffff:151e:3dfd
21.30.61.254 0:0:0:0:0:ffff:151e:3dfe
21.30.61.255 0:0:0:0:0:ffff:151e:3dff


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.