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
66.43.139.1 0:0:0:0:0:ffff:422b:8b01
66.43.139.2 0:0:0:0:0:ffff:422b:8b02
66.43.139.3 0:0:0:0:0:ffff:422b:8b03
66.43.139.4 0:0:0:0:0:ffff:422b:8b04
66.43.139.5 0:0:0:0:0:ffff:422b:8b05
66.43.139.6 0:0:0:0:0:ffff:422b:8b06
66.43.139.7 0:0:0:0:0:ffff:422b:8b07
66.43.139.8 0:0:0:0:0:ffff:422b:8b08
66.43.139.9 0:0:0:0:0:ffff:422b:8b09
66.43.139.10 0:0:0:0:0:ffff:422b:8b0a
66.43.139.11 0:0:0:0:0:ffff:422b:8b0b
66.43.139.12 0:0:0:0:0:ffff:422b:8b0c
66.43.139.13 0:0:0:0:0:ffff:422b:8b0d
66.43.139.14 0:0:0:0:0:ffff:422b:8b0e
66.43.139.15 0:0:0:0:0:ffff:422b:8b0f
66.43.139.16 0:0:0:0:0:ffff:422b:8b10
66.43.139.17 0:0:0:0:0:ffff:422b:8b11
66.43.139.18 0:0:0:0:0:ffff:422b:8b12
66.43.139.19 0:0:0:0:0:ffff:422b:8b13
66.43.139.20 0:0:0:0:0:ffff:422b:8b14
66.43.139.21 0:0:0:0:0:ffff:422b:8b15
66.43.139.22 0:0:0:0:0:ffff:422b:8b16
66.43.139.23 0:0:0:0:0:ffff:422b:8b17
66.43.139.24 0:0:0:0:0:ffff:422b:8b18
66.43.139.25 0:0:0:0:0:ffff:422b:8b19
66.43.139.26 0:0:0:0:0:ffff:422b:8b1a
66.43.139.27 0:0:0:0:0:ffff:422b:8b1b
66.43.139.28 0:0:0:0:0:ffff:422b:8b1c
66.43.139.29 0:0:0:0:0:ffff:422b:8b1d
66.43.139.30 0:0:0:0:0:ffff:422b:8b1e
66.43.139.31 0:0:0:0:0:ffff:422b:8b1f
66.43.139.32 0:0:0:0:0:ffff:422b:8b20
66.43.139.33 0:0:0:0:0:ffff:422b:8b21
66.43.139.34 0:0:0:0:0:ffff:422b:8b22
66.43.139.35 0:0:0:0:0:ffff:422b:8b23
66.43.139.36 0:0:0:0:0:ffff:422b:8b24
66.43.139.37 0:0:0:0:0:ffff:422b:8b25
66.43.139.38 0:0:0:0:0:ffff:422b:8b26
66.43.139.39 0:0:0:0:0:ffff:422b:8b27
66.43.139.40 0:0:0:0:0:ffff:422b:8b28
66.43.139.41 0:0:0:0:0:ffff:422b:8b29
66.43.139.42 0:0:0:0:0:ffff:422b:8b2a
66.43.139.43 0:0:0:0:0:ffff:422b:8b2b
66.43.139.44 0:0:0:0:0:ffff:422b:8b2c
66.43.139.45 0:0:0:0:0:ffff:422b:8b2d
66.43.139.46 0:0:0:0:0:ffff:422b:8b2e
66.43.139.47 0:0:0:0:0:ffff:422b:8b2f
66.43.139.48 0:0:0:0:0:ffff:422b:8b30
66.43.139.49 0:0:0:0:0:ffff:422b:8b31
66.43.139.50 0:0:0:0:0:ffff:422b:8b32
66.43.139.51 0:0:0:0:0:ffff:422b:8b33
66.43.139.52 0:0:0:0:0:ffff:422b:8b34
66.43.139.53 0:0:0:0:0:ffff:422b:8b35
66.43.139.54 0:0:0:0:0:ffff:422b:8b36
66.43.139.55 0:0:0:0:0:ffff:422b:8b37
66.43.139.56 0:0:0:0:0:ffff:422b:8b38
66.43.139.57 0:0:0:0:0:ffff:422b:8b39
66.43.139.58 0:0:0:0:0:ffff:422b:8b3a
66.43.139.59 0:0:0:0:0:ffff:422b:8b3b
66.43.139.60 0:0:0:0:0:ffff:422b:8b3c


66.43.139.61 0:0:0:0:0:ffff:422b:8b3d
66.43.139.62 0:0:0:0:0:ffff:422b:8b3e
66.43.139.63 0:0:0:0:0:ffff:422b:8b3f
66.43.139.64 0:0:0:0:0:ffff:422b:8b40
66.43.139.65 0:0:0:0:0:ffff:422b:8b41
66.43.139.66 0:0:0:0:0:ffff:422b:8b42
66.43.139.67 0:0:0:0:0:ffff:422b:8b43
66.43.139.68 0:0:0:0:0:ffff:422b:8b44
66.43.139.69 0:0:0:0:0:ffff:422b:8b45
66.43.139.70 0:0:0:0:0:ffff:422b:8b46
66.43.139.71 0:0:0:0:0:ffff:422b:8b47
66.43.139.72 0:0:0:0:0:ffff:422b:8b48
66.43.139.73 0:0:0:0:0:ffff:422b:8b49
66.43.139.74 0:0:0:0:0:ffff:422b:8b4a
66.43.139.75 0:0:0:0:0:ffff:422b:8b4b
66.43.139.76 0:0:0:0:0:ffff:422b:8b4c
66.43.139.77 0:0:0:0:0:ffff:422b:8b4d
66.43.139.78 0:0:0:0:0:ffff:422b:8b4e
66.43.139.79 0:0:0:0:0:ffff:422b:8b4f
66.43.139.80 0:0:0:0:0:ffff:422b:8b50
66.43.139.81 0:0:0:0:0:ffff:422b:8b51
66.43.139.82 0:0:0:0:0:ffff:422b:8b52
66.43.139.83 0:0:0:0:0:ffff:422b:8b53
66.43.139.84 0:0:0:0:0:ffff:422b:8b54
66.43.139.85 0:0:0:0:0:ffff:422b:8b55
66.43.139.86 0:0:0:0:0:ffff:422b:8b56
66.43.139.87 0:0:0:0:0:ffff:422b:8b57
66.43.139.88 0:0:0:0:0:ffff:422b:8b58
66.43.139.89 0:0:0:0:0:ffff:422b:8b59
66.43.139.90 0:0:0:0:0:ffff:422b:8b5a
66.43.139.91 0:0:0:0:0:ffff:422b:8b5b
66.43.139.92 0:0:0:0:0:ffff:422b:8b5c
66.43.139.93 0:0:0:0:0:ffff:422b:8b5d
66.43.139.94 0:0:0:0:0:ffff:422b:8b5e
66.43.139.95 0:0:0:0:0:ffff:422b:8b5f
66.43.139.96 0:0:0:0:0:ffff:422b:8b60
66.43.139.97 0:0:0:0:0:ffff:422b:8b61
66.43.139.98 0:0:0:0:0:ffff:422b:8b62
66.43.139.99 0:0:0:0:0:ffff:422b:8b63
66.43.139.100 0:0:0:0:0:ffff:422b:8b64
66.43.139.101 0:0:0:0:0:ffff:422b:8b65
66.43.139.102 0:0:0:0:0:ffff:422b:8b66
66.43.139.103 0:0:0:0:0:ffff:422b:8b67
66.43.139.104 0:0:0:0:0:ffff:422b:8b68
66.43.139.105 0:0:0:0:0:ffff:422b:8b69
66.43.139.106 0:0:0:0:0:ffff:422b:8b6a
66.43.139.107 0:0:0:0:0:ffff:422b:8b6b
66.43.139.108 0:0:0:0:0:ffff:422b:8b6c
66.43.139.109 0:0:0:0:0:ffff:422b:8b6d
66.43.139.110 0:0:0:0:0:ffff:422b:8b6e
66.43.139.111 0:0:0:0:0:ffff:422b:8b6f
66.43.139.112 0:0:0:0:0:ffff:422b:8b70
66.43.139.113 0:0:0:0:0:ffff:422b:8b71
66.43.139.114 0:0:0:0:0:ffff:422b:8b72
66.43.139.115 0:0:0:0:0:ffff:422b:8b73
66.43.139.116 0:0:0:0:0:ffff:422b:8b74
66.43.139.117 0:0:0:0:0:ffff:422b:8b75
66.43.139.118 0:0:0:0:0:ffff:422b:8b76
66.43.139.119 0:0:0:0:0:ffff:422b:8b77
66.43.139.120 0:0:0:0:0:ffff:422b:8b78


66.43.139.121 0:0:0:0:0:ffff:422b:8b79
66.43.139.122 0:0:0:0:0:ffff:422b:8b7a
66.43.139.123 0:0:0:0:0:ffff:422b:8b7b
66.43.139.124 0:0:0:0:0:ffff:422b:8b7c
66.43.139.125 0:0:0:0:0:ffff:422b:8b7d
66.43.139.126 0:0:0:0:0:ffff:422b:8b7e
66.43.139.127 0:0:0:0:0:ffff:422b:8b7f
66.43.139.128 0:0:0:0:0:ffff:422b:8b80
66.43.139.129 0:0:0:0:0:ffff:422b:8b81
66.43.139.130 0:0:0:0:0:ffff:422b:8b82
66.43.139.131 0:0:0:0:0:ffff:422b:8b83
66.43.139.132 0:0:0:0:0:ffff:422b:8b84
66.43.139.133 0:0:0:0:0:ffff:422b:8b85
66.43.139.134 0:0:0:0:0:ffff:422b:8b86
66.43.139.135 0:0:0:0:0:ffff:422b:8b87
66.43.139.136 0:0:0:0:0:ffff:422b:8b88
66.43.139.137 0:0:0:0:0:ffff:422b:8b89
66.43.139.138 0:0:0:0:0:ffff:422b:8b8a
66.43.139.139 0:0:0:0:0:ffff:422b:8b8b
66.43.139.140 0:0:0:0:0:ffff:422b:8b8c
66.43.139.141 0:0:0:0:0:ffff:422b:8b8d
66.43.139.142 0:0:0:0:0:ffff:422b:8b8e
66.43.139.143 0:0:0:0:0:ffff:422b:8b8f
66.43.139.144 0:0:0:0:0:ffff:422b:8b90
66.43.139.145 0:0:0:0:0:ffff:422b:8b91
66.43.139.146 0:0:0:0:0:ffff:422b:8b92
66.43.139.147 0:0:0:0:0:ffff:422b:8b93
66.43.139.148 0:0:0:0:0:ffff:422b:8b94
66.43.139.149 0:0:0:0:0:ffff:422b:8b95
66.43.139.150 0:0:0:0:0:ffff:422b:8b96
66.43.139.151 0:0:0:0:0:ffff:422b:8b97
66.43.139.152 0:0:0:0:0:ffff:422b:8b98
66.43.139.153 0:0:0:0:0:ffff:422b:8b99
66.43.139.154 0:0:0:0:0:ffff:422b:8b9a
66.43.139.155 0:0:0:0:0:ffff:422b:8b9b
66.43.139.156 0:0:0:0:0:ffff:422b:8b9c
66.43.139.157 0:0:0:0:0:ffff:422b:8b9d
66.43.139.158 0:0:0:0:0:ffff:422b:8b9e
66.43.139.159 0:0:0:0:0:ffff:422b:8b9f
66.43.139.160 0:0:0:0:0:ffff:422b:8ba0
66.43.139.161 0:0:0:0:0:ffff:422b:8ba1
66.43.139.162 0:0:0:0:0:ffff:422b:8ba2
66.43.139.163 0:0:0:0:0:ffff:422b:8ba3
66.43.139.164 0:0:0:0:0:ffff:422b:8ba4
66.43.139.165 0:0:0:0:0:ffff:422b:8ba5
66.43.139.166 0:0:0:0:0:ffff:422b:8ba6
66.43.139.167 0:0:0:0:0:ffff:422b:8ba7
66.43.139.168 0:0:0:0:0:ffff:422b:8ba8
66.43.139.169 0:0:0:0:0:ffff:422b:8ba9
66.43.139.170 0:0:0:0:0:ffff:422b:8baa
66.43.139.171 0:0:0:0:0:ffff:422b:8bab
66.43.139.172 0:0:0:0:0:ffff:422b:8bac
66.43.139.173 0:0:0:0:0:ffff:422b:8bad
66.43.139.174 0:0:0:0:0:ffff:422b:8bae
66.43.139.175 0:0:0:0:0:ffff:422b:8baf
66.43.139.176 0:0:0:0:0:ffff:422b:8bb0
66.43.139.177 0:0:0:0:0:ffff:422b:8bb1
66.43.139.178 0:0:0:0:0:ffff:422b:8bb2
66.43.139.179 0:0:0:0:0:ffff:422b:8bb3
66.43.139.180 0:0:0:0:0:ffff:422b:8bb4


66.43.139.181 0:0:0:0:0:ffff:422b:8bb5
66.43.139.182 0:0:0:0:0:ffff:422b:8bb6
66.43.139.183 0:0:0:0:0:ffff:422b:8bb7
66.43.139.184 0:0:0:0:0:ffff:422b:8bb8
66.43.139.185 0:0:0:0:0:ffff:422b:8bb9
66.43.139.186 0:0:0:0:0:ffff:422b:8bba
66.43.139.187 0:0:0:0:0:ffff:422b:8bbb
66.43.139.188 0:0:0:0:0:ffff:422b:8bbc
66.43.139.189 0:0:0:0:0:ffff:422b:8bbd
66.43.139.190 0:0:0:0:0:ffff:422b:8bbe
66.43.139.191 0:0:0:0:0:ffff:422b:8bbf
66.43.139.192 0:0:0:0:0:ffff:422b:8bc0
66.43.139.193 0:0:0:0:0:ffff:422b:8bc1
66.43.139.194 0:0:0:0:0:ffff:422b:8bc2
66.43.139.195 0:0:0:0:0:ffff:422b:8bc3
66.43.139.196 0:0:0:0:0:ffff:422b:8bc4
66.43.139.197 0:0:0:0:0:ffff:422b:8bc5
66.43.139.198 0:0:0:0:0:ffff:422b:8bc6
66.43.139.199 0:0:0:0:0:ffff:422b:8bc7
66.43.139.200 0:0:0:0:0:ffff:422b:8bc8
66.43.139.201 0:0:0:0:0:ffff:422b:8bc9
66.43.139.202 0:0:0:0:0:ffff:422b:8bca
66.43.139.203 0:0:0:0:0:ffff:422b:8bcb
66.43.139.204 0:0:0:0:0:ffff:422b:8bcc
66.43.139.205 0:0:0:0:0:ffff:422b:8bcd
66.43.139.206 0:0:0:0:0:ffff:422b:8bce
66.43.139.207 0:0:0:0:0:ffff:422b:8bcf
66.43.139.208 0:0:0:0:0:ffff:422b:8bd0
66.43.139.209 0:0:0:0:0:ffff:422b:8bd1
66.43.139.210 0:0:0:0:0:ffff:422b:8bd2
66.43.139.211 0:0:0:0:0:ffff:422b:8bd3
66.43.139.212 0:0:0:0:0:ffff:422b:8bd4
66.43.139.213 0:0:0:0:0:ffff:422b:8bd5
66.43.139.214 0:0:0:0:0:ffff:422b:8bd6
66.43.139.215 0:0:0:0:0:ffff:422b:8bd7
66.43.139.216 0:0:0:0:0:ffff:422b:8bd8
66.43.139.217 0:0:0:0:0:ffff:422b:8bd9
66.43.139.218 0:0:0:0:0:ffff:422b:8bda
66.43.139.219 0:0:0:0:0:ffff:422b:8bdb
66.43.139.220 0:0:0:0:0:ffff:422b:8bdc
66.43.139.221 0:0:0:0:0:ffff:422b:8bdd
66.43.139.222 0:0:0:0:0:ffff:422b:8bde
66.43.139.223 0:0:0:0:0:ffff:422b:8bdf
66.43.139.224 0:0:0:0:0:ffff:422b:8be0
66.43.139.225 0:0:0:0:0:ffff:422b:8be1
66.43.139.226 0:0:0:0:0:ffff:422b:8be2
66.43.139.227 0:0:0:0:0:ffff:422b:8be3
66.43.139.228 0:0:0:0:0:ffff:422b:8be4
66.43.139.229 0:0:0:0:0:ffff:422b:8be5
66.43.139.230 0:0:0:0:0:ffff:422b:8be6
66.43.139.231 0:0:0:0:0:ffff:422b:8be7
66.43.139.232 0:0:0:0:0:ffff:422b:8be8
66.43.139.233 0:0:0:0:0:ffff:422b:8be9
66.43.139.234 0:0:0:0:0:ffff:422b:8bea
66.43.139.235 0:0:0:0:0:ffff:422b:8beb
66.43.139.236 0:0:0:0:0:ffff:422b:8bec
66.43.139.237 0:0:0:0:0:ffff:422b:8bed
66.43.139.238 0:0:0:0:0:ffff:422b:8bee
66.43.139.239 0:0:0:0:0:ffff:422b:8bef
66.43.139.240 0:0:0:0:0:ffff:422b:8bf0
66.43.139.241 0:0:0:0:0:ffff:422b:8bf1
66.43.139.242 0:0:0:0:0:ffff:422b:8bf2
66.43.139.243 0:0:0:0:0:ffff:422b:8bf3
66.43.139.244 0:0:0:0:0:ffff:422b:8bf4
66.43.139.245 0:0:0:0:0:ffff:422b:8bf5
66.43.139.246 0:0:0:0:0:ffff:422b:8bf6
66.43.139.247 0:0:0:0:0:ffff:422b:8bf7
66.43.139.248 0:0:0:0:0:ffff:422b:8bf8
66.43.139.249 0:0:0:0:0:ffff:422b:8bf9
66.43.139.250 0:0:0:0:0:ffff:422b:8bfa
66.43.139.251 0:0:0:0:0:ffff:422b:8bfb
66.43.139.252 0:0:0:0:0:ffff:422b:8bfc
66.43.139.253 0:0:0:0:0:ffff:422b:8bfd
66.43.139.254 0:0:0:0:0:ffff:422b:8bfe
66.43.139.255 0:0:0:0:0:ffff:422b: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.