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
67.21.139.1 0:0:0:0:0:ffff:4315:8b01
67.21.139.2 0:0:0:0:0:ffff:4315:8b02
67.21.139.3 0:0:0:0:0:ffff:4315:8b03
67.21.139.4 0:0:0:0:0:ffff:4315:8b04
67.21.139.5 0:0:0:0:0:ffff:4315:8b05
67.21.139.6 0:0:0:0:0:ffff:4315:8b06
67.21.139.7 0:0:0:0:0:ffff:4315:8b07
67.21.139.8 0:0:0:0:0:ffff:4315:8b08
67.21.139.9 0:0:0:0:0:ffff:4315:8b09
67.21.139.10 0:0:0:0:0:ffff:4315:8b0a
67.21.139.11 0:0:0:0:0:ffff:4315:8b0b
67.21.139.12 0:0:0:0:0:ffff:4315:8b0c
67.21.139.13 0:0:0:0:0:ffff:4315:8b0d
67.21.139.14 0:0:0:0:0:ffff:4315:8b0e
67.21.139.15 0:0:0:0:0:ffff:4315:8b0f
67.21.139.16 0:0:0:0:0:ffff:4315:8b10
67.21.139.17 0:0:0:0:0:ffff:4315:8b11
67.21.139.18 0:0:0:0:0:ffff:4315:8b12
67.21.139.19 0:0:0:0:0:ffff:4315:8b13
67.21.139.20 0:0:0:0:0:ffff:4315:8b14
67.21.139.21 0:0:0:0:0:ffff:4315:8b15
67.21.139.22 0:0:0:0:0:ffff:4315:8b16
67.21.139.23 0:0:0:0:0:ffff:4315:8b17
67.21.139.24 0:0:0:0:0:ffff:4315:8b18
67.21.139.25 0:0:0:0:0:ffff:4315:8b19
67.21.139.26 0:0:0:0:0:ffff:4315:8b1a
67.21.139.27 0:0:0:0:0:ffff:4315:8b1b
67.21.139.28 0:0:0:0:0:ffff:4315:8b1c
67.21.139.29 0:0:0:0:0:ffff:4315:8b1d
67.21.139.30 0:0:0:0:0:ffff:4315:8b1e
67.21.139.31 0:0:0:0:0:ffff:4315:8b1f
67.21.139.32 0:0:0:0:0:ffff:4315:8b20
67.21.139.33 0:0:0:0:0:ffff:4315:8b21
67.21.139.34 0:0:0:0:0:ffff:4315:8b22
67.21.139.35 0:0:0:0:0:ffff:4315:8b23
67.21.139.36 0:0:0:0:0:ffff:4315:8b24
67.21.139.37 0:0:0:0:0:ffff:4315:8b25
67.21.139.38 0:0:0:0:0:ffff:4315:8b26
67.21.139.39 0:0:0:0:0:ffff:4315:8b27
67.21.139.40 0:0:0:0:0:ffff:4315:8b28
67.21.139.41 0:0:0:0:0:ffff:4315:8b29
67.21.139.42 0:0:0:0:0:ffff:4315:8b2a
67.21.139.43 0:0:0:0:0:ffff:4315:8b2b
67.21.139.44 0:0:0:0:0:ffff:4315:8b2c
67.21.139.45 0:0:0:0:0:ffff:4315:8b2d
67.21.139.46 0:0:0:0:0:ffff:4315:8b2e
67.21.139.47 0:0:0:0:0:ffff:4315:8b2f
67.21.139.48 0:0:0:0:0:ffff:4315:8b30
67.21.139.49 0:0:0:0:0:ffff:4315:8b31
67.21.139.50 0:0:0:0:0:ffff:4315:8b32
67.21.139.51 0:0:0:0:0:ffff:4315:8b33
67.21.139.52 0:0:0:0:0:ffff:4315:8b34
67.21.139.53 0:0:0:0:0:ffff:4315:8b35
67.21.139.54 0:0:0:0:0:ffff:4315:8b36
67.21.139.55 0:0:0:0:0:ffff:4315:8b37
67.21.139.56 0:0:0:0:0:ffff:4315:8b38
67.21.139.57 0:0:0:0:0:ffff:4315:8b39
67.21.139.58 0:0:0:0:0:ffff:4315:8b3a
67.21.139.59 0:0:0:0:0:ffff:4315:8b3b
67.21.139.60 0:0:0:0:0:ffff:4315:8b3c


67.21.139.61 0:0:0:0:0:ffff:4315:8b3d
67.21.139.62 0:0:0:0:0:ffff:4315:8b3e
67.21.139.63 0:0:0:0:0:ffff:4315:8b3f
67.21.139.64 0:0:0:0:0:ffff:4315:8b40
67.21.139.65 0:0:0:0:0:ffff:4315:8b41
67.21.139.66 0:0:0:0:0:ffff:4315:8b42
67.21.139.67 0:0:0:0:0:ffff:4315:8b43
67.21.139.68 0:0:0:0:0:ffff:4315:8b44
67.21.139.69 0:0:0:0:0:ffff:4315:8b45
67.21.139.70 0:0:0:0:0:ffff:4315:8b46
67.21.139.71 0:0:0:0:0:ffff:4315:8b47
67.21.139.72 0:0:0:0:0:ffff:4315:8b48
67.21.139.73 0:0:0:0:0:ffff:4315:8b49
67.21.139.74 0:0:0:0:0:ffff:4315:8b4a
67.21.139.75 0:0:0:0:0:ffff:4315:8b4b
67.21.139.76 0:0:0:0:0:ffff:4315:8b4c
67.21.139.77 0:0:0:0:0:ffff:4315:8b4d
67.21.139.78 0:0:0:0:0:ffff:4315:8b4e
67.21.139.79 0:0:0:0:0:ffff:4315:8b4f
67.21.139.80 0:0:0:0:0:ffff:4315:8b50
67.21.139.81 0:0:0:0:0:ffff:4315:8b51
67.21.139.82 0:0:0:0:0:ffff:4315:8b52
67.21.139.83 0:0:0:0:0:ffff:4315:8b53
67.21.139.84 0:0:0:0:0:ffff:4315:8b54
67.21.139.85 0:0:0:0:0:ffff:4315:8b55
67.21.139.86 0:0:0:0:0:ffff:4315:8b56
67.21.139.87 0:0:0:0:0:ffff:4315:8b57
67.21.139.88 0:0:0:0:0:ffff:4315:8b58
67.21.139.89 0:0:0:0:0:ffff:4315:8b59
67.21.139.90 0:0:0:0:0:ffff:4315:8b5a
67.21.139.91 0:0:0:0:0:ffff:4315:8b5b
67.21.139.92 0:0:0:0:0:ffff:4315:8b5c
67.21.139.93 0:0:0:0:0:ffff:4315:8b5d
67.21.139.94 0:0:0:0:0:ffff:4315:8b5e
67.21.139.95 0:0:0:0:0:ffff:4315:8b5f
67.21.139.96 0:0:0:0:0:ffff:4315:8b60
67.21.139.97 0:0:0:0:0:ffff:4315:8b61
67.21.139.98 0:0:0:0:0:ffff:4315:8b62
67.21.139.99 0:0:0:0:0:ffff:4315:8b63
67.21.139.100 0:0:0:0:0:ffff:4315:8b64
67.21.139.101 0:0:0:0:0:ffff:4315:8b65
67.21.139.102 0:0:0:0:0:ffff:4315:8b66
67.21.139.103 0:0:0:0:0:ffff:4315:8b67
67.21.139.104 0:0:0:0:0:ffff:4315:8b68
67.21.139.105 0:0:0:0:0:ffff:4315:8b69
67.21.139.106 0:0:0:0:0:ffff:4315:8b6a
67.21.139.107 0:0:0:0:0:ffff:4315:8b6b
67.21.139.108 0:0:0:0:0:ffff:4315:8b6c
67.21.139.109 0:0:0:0:0:ffff:4315:8b6d
67.21.139.110 0:0:0:0:0:ffff:4315:8b6e
67.21.139.111 0:0:0:0:0:ffff:4315:8b6f
67.21.139.112 0:0:0:0:0:ffff:4315:8b70
67.21.139.113 0:0:0:0:0:ffff:4315:8b71
67.21.139.114 0:0:0:0:0:ffff:4315:8b72
67.21.139.115 0:0:0:0:0:ffff:4315:8b73
67.21.139.116 0:0:0:0:0:ffff:4315:8b74
67.21.139.117 0:0:0:0:0:ffff:4315:8b75
67.21.139.118 0:0:0:0:0:ffff:4315:8b76
67.21.139.119 0:0:0:0:0:ffff:4315:8b77
67.21.139.120 0:0:0:0:0:ffff:4315:8b78


67.21.139.121 0:0:0:0:0:ffff:4315:8b79
67.21.139.122 0:0:0:0:0:ffff:4315:8b7a
67.21.139.123 0:0:0:0:0:ffff:4315:8b7b
67.21.139.124 0:0:0:0:0:ffff:4315:8b7c
67.21.139.125 0:0:0:0:0:ffff:4315:8b7d
67.21.139.126 0:0:0:0:0:ffff:4315:8b7e
67.21.139.127 0:0:0:0:0:ffff:4315:8b7f
67.21.139.128 0:0:0:0:0:ffff:4315:8b80
67.21.139.129 0:0:0:0:0:ffff:4315:8b81
67.21.139.130 0:0:0:0:0:ffff:4315:8b82
67.21.139.131 0:0:0:0:0:ffff:4315:8b83
67.21.139.132 0:0:0:0:0:ffff:4315:8b84
67.21.139.133 0:0:0:0:0:ffff:4315:8b85
67.21.139.134 0:0:0:0:0:ffff:4315:8b86
67.21.139.135 0:0:0:0:0:ffff:4315:8b87
67.21.139.136 0:0:0:0:0:ffff:4315:8b88
67.21.139.137 0:0:0:0:0:ffff:4315:8b89
67.21.139.138 0:0:0:0:0:ffff:4315:8b8a
67.21.139.139 0:0:0:0:0:ffff:4315:8b8b
67.21.139.140 0:0:0:0:0:ffff:4315:8b8c
67.21.139.141 0:0:0:0:0:ffff:4315:8b8d
67.21.139.142 0:0:0:0:0:ffff:4315:8b8e
67.21.139.143 0:0:0:0:0:ffff:4315:8b8f
67.21.139.144 0:0:0:0:0:ffff:4315:8b90
67.21.139.145 0:0:0:0:0:ffff:4315:8b91
67.21.139.146 0:0:0:0:0:ffff:4315:8b92
67.21.139.147 0:0:0:0:0:ffff:4315:8b93
67.21.139.148 0:0:0:0:0:ffff:4315:8b94
67.21.139.149 0:0:0:0:0:ffff:4315:8b95
67.21.139.150 0:0:0:0:0:ffff:4315:8b96
67.21.139.151 0:0:0:0:0:ffff:4315:8b97
67.21.139.152 0:0:0:0:0:ffff:4315:8b98
67.21.139.153 0:0:0:0:0:ffff:4315:8b99
67.21.139.154 0:0:0:0:0:ffff:4315:8b9a
67.21.139.155 0:0:0:0:0:ffff:4315:8b9b
67.21.139.156 0:0:0:0:0:ffff:4315:8b9c
67.21.139.157 0:0:0:0:0:ffff:4315:8b9d
67.21.139.158 0:0:0:0:0:ffff:4315:8b9e
67.21.139.159 0:0:0:0:0:ffff:4315:8b9f
67.21.139.160 0:0:0:0:0:ffff:4315:8ba0
67.21.139.161 0:0:0:0:0:ffff:4315:8ba1
67.21.139.162 0:0:0:0:0:ffff:4315:8ba2
67.21.139.163 0:0:0:0:0:ffff:4315:8ba3
67.21.139.164 0:0:0:0:0:ffff:4315:8ba4
67.21.139.165 0:0:0:0:0:ffff:4315:8ba5
67.21.139.166 0:0:0:0:0:ffff:4315:8ba6
67.21.139.167 0:0:0:0:0:ffff:4315:8ba7
67.21.139.168 0:0:0:0:0:ffff:4315:8ba8
67.21.139.169 0:0:0:0:0:ffff:4315:8ba9
67.21.139.170 0:0:0:0:0:ffff:4315:8baa
67.21.139.171 0:0:0:0:0:ffff:4315:8bab
67.21.139.172 0:0:0:0:0:ffff:4315:8bac
67.21.139.173 0:0:0:0:0:ffff:4315:8bad
67.21.139.174 0:0:0:0:0:ffff:4315:8bae
67.21.139.175 0:0:0:0:0:ffff:4315:8baf
67.21.139.176 0:0:0:0:0:ffff:4315:8bb0
67.21.139.177 0:0:0:0:0:ffff:4315:8bb1
67.21.139.178 0:0:0:0:0:ffff:4315:8bb2
67.21.139.179 0:0:0:0:0:ffff:4315:8bb3
67.21.139.180 0:0:0:0:0:ffff:4315:8bb4


67.21.139.181 0:0:0:0:0:ffff:4315:8bb5
67.21.139.182 0:0:0:0:0:ffff:4315:8bb6
67.21.139.183 0:0:0:0:0:ffff:4315:8bb7
67.21.139.184 0:0:0:0:0:ffff:4315:8bb8
67.21.139.185 0:0:0:0:0:ffff:4315:8bb9
67.21.139.186 0:0:0:0:0:ffff:4315:8bba
67.21.139.187 0:0:0:0:0:ffff:4315:8bbb
67.21.139.188 0:0:0:0:0:ffff:4315:8bbc
67.21.139.189 0:0:0:0:0:ffff:4315:8bbd
67.21.139.190 0:0:0:0:0:ffff:4315:8bbe
67.21.139.191 0:0:0:0:0:ffff:4315:8bbf
67.21.139.192 0:0:0:0:0:ffff:4315:8bc0
67.21.139.193 0:0:0:0:0:ffff:4315:8bc1
67.21.139.194 0:0:0:0:0:ffff:4315:8bc2
67.21.139.195 0:0:0:0:0:ffff:4315:8bc3
67.21.139.196 0:0:0:0:0:ffff:4315:8bc4
67.21.139.197 0:0:0:0:0:ffff:4315:8bc5
67.21.139.198 0:0:0:0:0:ffff:4315:8bc6
67.21.139.199 0:0:0:0:0:ffff:4315:8bc7
67.21.139.200 0:0:0:0:0:ffff:4315:8bc8
67.21.139.201 0:0:0:0:0:ffff:4315:8bc9
67.21.139.202 0:0:0:0:0:ffff:4315:8bca
67.21.139.203 0:0:0:0:0:ffff:4315:8bcb
67.21.139.204 0:0:0:0:0:ffff:4315:8bcc
67.21.139.205 0:0:0:0:0:ffff:4315:8bcd
67.21.139.206 0:0:0:0:0:ffff:4315:8bce
67.21.139.207 0:0:0:0:0:ffff:4315:8bcf
67.21.139.208 0:0:0:0:0:ffff:4315:8bd0
67.21.139.209 0:0:0:0:0:ffff:4315:8bd1
67.21.139.210 0:0:0:0:0:ffff:4315:8bd2
67.21.139.211 0:0:0:0:0:ffff:4315:8bd3
67.21.139.212 0:0:0:0:0:ffff:4315:8bd4
67.21.139.213 0:0:0:0:0:ffff:4315:8bd5
67.21.139.214 0:0:0:0:0:ffff:4315:8bd6
67.21.139.215 0:0:0:0:0:ffff:4315:8bd7
67.21.139.216 0:0:0:0:0:ffff:4315:8bd8
67.21.139.217 0:0:0:0:0:ffff:4315:8bd9
67.21.139.218 0:0:0:0:0:ffff:4315:8bda
67.21.139.219 0:0:0:0:0:ffff:4315:8bdb
67.21.139.220 0:0:0:0:0:ffff:4315:8bdc
67.21.139.221 0:0:0:0:0:ffff:4315:8bdd
67.21.139.222 0:0:0:0:0:ffff:4315:8bde
67.21.139.223 0:0:0:0:0:ffff:4315:8bdf
67.21.139.224 0:0:0:0:0:ffff:4315:8be0
67.21.139.225 0:0:0:0:0:ffff:4315:8be1
67.21.139.226 0:0:0:0:0:ffff:4315:8be2
67.21.139.227 0:0:0:0:0:ffff:4315:8be3
67.21.139.228 0:0:0:0:0:ffff:4315:8be4
67.21.139.229 0:0:0:0:0:ffff:4315:8be5
67.21.139.230 0:0:0:0:0:ffff:4315:8be6
67.21.139.231 0:0:0:0:0:ffff:4315:8be7
67.21.139.232 0:0:0:0:0:ffff:4315:8be8
67.21.139.233 0:0:0:0:0:ffff:4315:8be9
67.21.139.234 0:0:0:0:0:ffff:4315:8bea
67.21.139.235 0:0:0:0:0:ffff:4315:8beb
67.21.139.236 0:0:0:0:0:ffff:4315:8bec
67.21.139.237 0:0:0:0:0:ffff:4315:8bed
67.21.139.238 0:0:0:0:0:ffff:4315:8bee
67.21.139.239 0:0:0:0:0:ffff:4315:8bef
67.21.139.240 0:0:0:0:0:ffff:4315:8bf0
67.21.139.241 0:0:0:0:0:ffff:4315:8bf1
67.21.139.242 0:0:0:0:0:ffff:4315:8bf2
67.21.139.243 0:0:0:0:0:ffff:4315:8bf3
67.21.139.244 0:0:0:0:0:ffff:4315:8bf4
67.21.139.245 0:0:0:0:0:ffff:4315:8bf5
67.21.139.246 0:0:0:0:0:ffff:4315:8bf6
67.21.139.247 0:0:0:0:0:ffff:4315:8bf7
67.21.139.248 0:0:0:0:0:ffff:4315:8bf8
67.21.139.249 0:0:0:0:0:ffff:4315:8bf9
67.21.139.250 0:0:0:0:0:ffff:4315:8bfa
67.21.139.251 0:0:0:0:0:ffff:4315:8bfb
67.21.139.252 0:0:0:0:0:ffff:4315:8bfc
67.21.139.253 0:0:0:0:0:ffff:4315:8bfd
67.21.139.254 0:0:0:0:0:ffff:4315:8bfe
67.21.139.255 0:0:0:0:0:ffff:4315:8bff


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.