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
255.66.59.1 0:0:0:0:0:ffff:ff42:3b01
255.66.59.2 0:0:0:0:0:ffff:ff42:3b02
255.66.59.3 0:0:0:0:0:ffff:ff42:3b03
255.66.59.4 0:0:0:0:0:ffff:ff42:3b04
255.66.59.5 0:0:0:0:0:ffff:ff42:3b05
255.66.59.6 0:0:0:0:0:ffff:ff42:3b06
255.66.59.7 0:0:0:0:0:ffff:ff42:3b07
255.66.59.8 0:0:0:0:0:ffff:ff42:3b08
255.66.59.9 0:0:0:0:0:ffff:ff42:3b09
255.66.59.10 0:0:0:0:0:ffff:ff42:3b0a
255.66.59.11 0:0:0:0:0:ffff:ff42:3b0b
255.66.59.12 0:0:0:0:0:ffff:ff42:3b0c
255.66.59.13 0:0:0:0:0:ffff:ff42:3b0d
255.66.59.14 0:0:0:0:0:ffff:ff42:3b0e
255.66.59.15 0:0:0:0:0:ffff:ff42:3b0f
255.66.59.16 0:0:0:0:0:ffff:ff42:3b10
255.66.59.17 0:0:0:0:0:ffff:ff42:3b11
255.66.59.18 0:0:0:0:0:ffff:ff42:3b12
255.66.59.19 0:0:0:0:0:ffff:ff42:3b13
255.66.59.20 0:0:0:0:0:ffff:ff42:3b14
255.66.59.21 0:0:0:0:0:ffff:ff42:3b15
255.66.59.22 0:0:0:0:0:ffff:ff42:3b16
255.66.59.23 0:0:0:0:0:ffff:ff42:3b17
255.66.59.24 0:0:0:0:0:ffff:ff42:3b18
255.66.59.25 0:0:0:0:0:ffff:ff42:3b19
255.66.59.26 0:0:0:0:0:ffff:ff42:3b1a
255.66.59.27 0:0:0:0:0:ffff:ff42:3b1b
255.66.59.28 0:0:0:0:0:ffff:ff42:3b1c
255.66.59.29 0:0:0:0:0:ffff:ff42:3b1d
255.66.59.30 0:0:0:0:0:ffff:ff42:3b1e
255.66.59.31 0:0:0:0:0:ffff:ff42:3b1f
255.66.59.32 0:0:0:0:0:ffff:ff42:3b20
255.66.59.33 0:0:0:0:0:ffff:ff42:3b21
255.66.59.34 0:0:0:0:0:ffff:ff42:3b22
255.66.59.35 0:0:0:0:0:ffff:ff42:3b23
255.66.59.36 0:0:0:0:0:ffff:ff42:3b24
255.66.59.37 0:0:0:0:0:ffff:ff42:3b25
255.66.59.38 0:0:0:0:0:ffff:ff42:3b26
255.66.59.39 0:0:0:0:0:ffff:ff42:3b27
255.66.59.40 0:0:0:0:0:ffff:ff42:3b28
255.66.59.41 0:0:0:0:0:ffff:ff42:3b29
255.66.59.42 0:0:0:0:0:ffff:ff42:3b2a
255.66.59.43 0:0:0:0:0:ffff:ff42:3b2b
255.66.59.44 0:0:0:0:0:ffff:ff42:3b2c
255.66.59.45 0:0:0:0:0:ffff:ff42:3b2d
255.66.59.46 0:0:0:0:0:ffff:ff42:3b2e
255.66.59.47 0:0:0:0:0:ffff:ff42:3b2f
255.66.59.48 0:0:0:0:0:ffff:ff42:3b30
255.66.59.49 0:0:0:0:0:ffff:ff42:3b31
255.66.59.50 0:0:0:0:0:ffff:ff42:3b32
255.66.59.51 0:0:0:0:0:ffff:ff42:3b33
255.66.59.52 0:0:0:0:0:ffff:ff42:3b34
255.66.59.53 0:0:0:0:0:ffff:ff42:3b35
255.66.59.54 0:0:0:0:0:ffff:ff42:3b36
255.66.59.55 0:0:0:0:0:ffff:ff42:3b37
255.66.59.56 0:0:0:0:0:ffff:ff42:3b38
255.66.59.57 0:0:0:0:0:ffff:ff42:3b39
255.66.59.58 0:0:0:0:0:ffff:ff42:3b3a
255.66.59.59 0:0:0:0:0:ffff:ff42:3b3b
255.66.59.60 0:0:0:0:0:ffff:ff42:3b3c


255.66.59.61 0:0:0:0:0:ffff:ff42:3b3d
255.66.59.62 0:0:0:0:0:ffff:ff42:3b3e
255.66.59.63 0:0:0:0:0:ffff:ff42:3b3f
255.66.59.64 0:0:0:0:0:ffff:ff42:3b40
255.66.59.65 0:0:0:0:0:ffff:ff42:3b41
255.66.59.66 0:0:0:0:0:ffff:ff42:3b42
255.66.59.67 0:0:0:0:0:ffff:ff42:3b43
255.66.59.68 0:0:0:0:0:ffff:ff42:3b44
255.66.59.69 0:0:0:0:0:ffff:ff42:3b45
255.66.59.70 0:0:0:0:0:ffff:ff42:3b46
255.66.59.71 0:0:0:0:0:ffff:ff42:3b47
255.66.59.72 0:0:0:0:0:ffff:ff42:3b48
255.66.59.73 0:0:0:0:0:ffff:ff42:3b49
255.66.59.74 0:0:0:0:0:ffff:ff42:3b4a
255.66.59.75 0:0:0:0:0:ffff:ff42:3b4b
255.66.59.76 0:0:0:0:0:ffff:ff42:3b4c
255.66.59.77 0:0:0:0:0:ffff:ff42:3b4d
255.66.59.78 0:0:0:0:0:ffff:ff42:3b4e
255.66.59.79 0:0:0:0:0:ffff:ff42:3b4f
255.66.59.80 0:0:0:0:0:ffff:ff42:3b50
255.66.59.81 0:0:0:0:0:ffff:ff42:3b51
255.66.59.82 0:0:0:0:0:ffff:ff42:3b52
255.66.59.83 0:0:0:0:0:ffff:ff42:3b53
255.66.59.84 0:0:0:0:0:ffff:ff42:3b54
255.66.59.85 0:0:0:0:0:ffff:ff42:3b55
255.66.59.86 0:0:0:0:0:ffff:ff42:3b56
255.66.59.87 0:0:0:0:0:ffff:ff42:3b57
255.66.59.88 0:0:0:0:0:ffff:ff42:3b58
255.66.59.89 0:0:0:0:0:ffff:ff42:3b59
255.66.59.90 0:0:0:0:0:ffff:ff42:3b5a
255.66.59.91 0:0:0:0:0:ffff:ff42:3b5b
255.66.59.92 0:0:0:0:0:ffff:ff42:3b5c
255.66.59.93 0:0:0:0:0:ffff:ff42:3b5d
255.66.59.94 0:0:0:0:0:ffff:ff42:3b5e
255.66.59.95 0:0:0:0:0:ffff:ff42:3b5f
255.66.59.96 0:0:0:0:0:ffff:ff42:3b60
255.66.59.97 0:0:0:0:0:ffff:ff42:3b61
255.66.59.98 0:0:0:0:0:ffff:ff42:3b62
255.66.59.99 0:0:0:0:0:ffff:ff42:3b63
255.66.59.100 0:0:0:0:0:ffff:ff42:3b64
255.66.59.101 0:0:0:0:0:ffff:ff42:3b65
255.66.59.102 0:0:0:0:0:ffff:ff42:3b66
255.66.59.103 0:0:0:0:0:ffff:ff42:3b67
255.66.59.104 0:0:0:0:0:ffff:ff42:3b68
255.66.59.105 0:0:0:0:0:ffff:ff42:3b69
255.66.59.106 0:0:0:0:0:ffff:ff42:3b6a
255.66.59.107 0:0:0:0:0:ffff:ff42:3b6b
255.66.59.108 0:0:0:0:0:ffff:ff42:3b6c
255.66.59.109 0:0:0:0:0:ffff:ff42:3b6d
255.66.59.110 0:0:0:0:0:ffff:ff42:3b6e
255.66.59.111 0:0:0:0:0:ffff:ff42:3b6f
255.66.59.112 0:0:0:0:0:ffff:ff42:3b70
255.66.59.113 0:0:0:0:0:ffff:ff42:3b71
255.66.59.114 0:0:0:0:0:ffff:ff42:3b72
255.66.59.115 0:0:0:0:0:ffff:ff42:3b73
255.66.59.116 0:0:0:0:0:ffff:ff42:3b74
255.66.59.117 0:0:0:0:0:ffff:ff42:3b75
255.66.59.118 0:0:0:0:0:ffff:ff42:3b76
255.66.59.119 0:0:0:0:0:ffff:ff42:3b77
255.66.59.120 0:0:0:0:0:ffff:ff42:3b78


255.66.59.121 0:0:0:0:0:ffff:ff42:3b79
255.66.59.122 0:0:0:0:0:ffff:ff42:3b7a
255.66.59.123 0:0:0:0:0:ffff:ff42:3b7b
255.66.59.124 0:0:0:0:0:ffff:ff42:3b7c
255.66.59.125 0:0:0:0:0:ffff:ff42:3b7d
255.66.59.126 0:0:0:0:0:ffff:ff42:3b7e
255.66.59.127 0:0:0:0:0:ffff:ff42:3b7f
255.66.59.128 0:0:0:0:0:ffff:ff42:3b80
255.66.59.129 0:0:0:0:0:ffff:ff42:3b81
255.66.59.130 0:0:0:0:0:ffff:ff42:3b82
255.66.59.131 0:0:0:0:0:ffff:ff42:3b83
255.66.59.132 0:0:0:0:0:ffff:ff42:3b84
255.66.59.133 0:0:0:0:0:ffff:ff42:3b85
255.66.59.134 0:0:0:0:0:ffff:ff42:3b86
255.66.59.135 0:0:0:0:0:ffff:ff42:3b87
255.66.59.136 0:0:0:0:0:ffff:ff42:3b88
255.66.59.137 0:0:0:0:0:ffff:ff42:3b89
255.66.59.138 0:0:0:0:0:ffff:ff42:3b8a
255.66.59.139 0:0:0:0:0:ffff:ff42:3b8b
255.66.59.140 0:0:0:0:0:ffff:ff42:3b8c
255.66.59.141 0:0:0:0:0:ffff:ff42:3b8d
255.66.59.142 0:0:0:0:0:ffff:ff42:3b8e
255.66.59.143 0:0:0:0:0:ffff:ff42:3b8f
255.66.59.144 0:0:0:0:0:ffff:ff42:3b90
255.66.59.145 0:0:0:0:0:ffff:ff42:3b91
255.66.59.146 0:0:0:0:0:ffff:ff42:3b92
255.66.59.147 0:0:0:0:0:ffff:ff42:3b93
255.66.59.148 0:0:0:0:0:ffff:ff42:3b94
255.66.59.149 0:0:0:0:0:ffff:ff42:3b95
255.66.59.150 0:0:0:0:0:ffff:ff42:3b96
255.66.59.151 0:0:0:0:0:ffff:ff42:3b97
255.66.59.152 0:0:0:0:0:ffff:ff42:3b98
255.66.59.153 0:0:0:0:0:ffff:ff42:3b99
255.66.59.154 0:0:0:0:0:ffff:ff42:3b9a
255.66.59.155 0:0:0:0:0:ffff:ff42:3b9b
255.66.59.156 0:0:0:0:0:ffff:ff42:3b9c
255.66.59.157 0:0:0:0:0:ffff:ff42:3b9d
255.66.59.158 0:0:0:0:0:ffff:ff42:3b9e
255.66.59.159 0:0:0:0:0:ffff:ff42:3b9f
255.66.59.160 0:0:0:0:0:ffff:ff42:3ba0
255.66.59.161 0:0:0:0:0:ffff:ff42:3ba1
255.66.59.162 0:0:0:0:0:ffff:ff42:3ba2
255.66.59.163 0:0:0:0:0:ffff:ff42:3ba3
255.66.59.164 0:0:0:0:0:ffff:ff42:3ba4
255.66.59.165 0:0:0:0:0:ffff:ff42:3ba5
255.66.59.166 0:0:0:0:0:ffff:ff42:3ba6
255.66.59.167 0:0:0:0:0:ffff:ff42:3ba7
255.66.59.168 0:0:0:0:0:ffff:ff42:3ba8
255.66.59.169 0:0:0:0:0:ffff:ff42:3ba9
255.66.59.170 0:0:0:0:0:ffff:ff42:3baa
255.66.59.171 0:0:0:0:0:ffff:ff42:3bab
255.66.59.172 0:0:0:0:0:ffff:ff42:3bac
255.66.59.173 0:0:0:0:0:ffff:ff42:3bad
255.66.59.174 0:0:0:0:0:ffff:ff42:3bae
255.66.59.175 0:0:0:0:0:ffff:ff42:3baf
255.66.59.176 0:0:0:0:0:ffff:ff42:3bb0
255.66.59.177 0:0:0:0:0:ffff:ff42:3bb1
255.66.59.178 0:0:0:0:0:ffff:ff42:3bb2
255.66.59.179 0:0:0:0:0:ffff:ff42:3bb3
255.66.59.180 0:0:0:0:0:ffff:ff42:3bb4


255.66.59.181 0:0:0:0:0:ffff:ff42:3bb5
255.66.59.182 0:0:0:0:0:ffff:ff42:3bb6
255.66.59.183 0:0:0:0:0:ffff:ff42:3bb7
255.66.59.184 0:0:0:0:0:ffff:ff42:3bb8
255.66.59.185 0:0:0:0:0:ffff:ff42:3bb9
255.66.59.186 0:0:0:0:0:ffff:ff42:3bba
255.66.59.187 0:0:0:0:0:ffff:ff42:3bbb
255.66.59.188 0:0:0:0:0:ffff:ff42:3bbc
255.66.59.189 0:0:0:0:0:ffff:ff42:3bbd
255.66.59.190 0:0:0:0:0:ffff:ff42:3bbe
255.66.59.191 0:0:0:0:0:ffff:ff42:3bbf
255.66.59.192 0:0:0:0:0:ffff:ff42:3bc0
255.66.59.193 0:0:0:0:0:ffff:ff42:3bc1
255.66.59.194 0:0:0:0:0:ffff:ff42:3bc2
255.66.59.195 0:0:0:0:0:ffff:ff42:3bc3
255.66.59.196 0:0:0:0:0:ffff:ff42:3bc4
255.66.59.197 0:0:0:0:0:ffff:ff42:3bc5
255.66.59.198 0:0:0:0:0:ffff:ff42:3bc6
255.66.59.199 0:0:0:0:0:ffff:ff42:3bc7
255.66.59.200 0:0:0:0:0:ffff:ff42:3bc8
255.66.59.201 0:0:0:0:0:ffff:ff42:3bc9
255.66.59.202 0:0:0:0:0:ffff:ff42:3bca
255.66.59.203 0:0:0:0:0:ffff:ff42:3bcb
255.66.59.204 0:0:0:0:0:ffff:ff42:3bcc
255.66.59.205 0:0:0:0:0:ffff:ff42:3bcd
255.66.59.206 0:0:0:0:0:ffff:ff42:3bce
255.66.59.207 0:0:0:0:0:ffff:ff42:3bcf
255.66.59.208 0:0:0:0:0:ffff:ff42:3bd0
255.66.59.209 0:0:0:0:0:ffff:ff42:3bd1
255.66.59.210 0:0:0:0:0:ffff:ff42:3bd2
255.66.59.211 0:0:0:0:0:ffff:ff42:3bd3
255.66.59.212 0:0:0:0:0:ffff:ff42:3bd4
255.66.59.213 0:0:0:0:0:ffff:ff42:3bd5
255.66.59.214 0:0:0:0:0:ffff:ff42:3bd6
255.66.59.215 0:0:0:0:0:ffff:ff42:3bd7
255.66.59.216 0:0:0:0:0:ffff:ff42:3bd8
255.66.59.217 0:0:0:0:0:ffff:ff42:3bd9
255.66.59.218 0:0:0:0:0:ffff:ff42:3bda
255.66.59.219 0:0:0:0:0:ffff:ff42:3bdb
255.66.59.220 0:0:0:0:0:ffff:ff42:3bdc
255.66.59.221 0:0:0:0:0:ffff:ff42:3bdd
255.66.59.222 0:0:0:0:0:ffff:ff42:3bde
255.66.59.223 0:0:0:0:0:ffff:ff42:3bdf
255.66.59.224 0:0:0:0:0:ffff:ff42:3be0
255.66.59.225 0:0:0:0:0:ffff:ff42:3be1
255.66.59.226 0:0:0:0:0:ffff:ff42:3be2
255.66.59.227 0:0:0:0:0:ffff:ff42:3be3
255.66.59.228 0:0:0:0:0:ffff:ff42:3be4
255.66.59.229 0:0:0:0:0:ffff:ff42:3be5
255.66.59.230 0:0:0:0:0:ffff:ff42:3be6
255.66.59.231 0:0:0:0:0:ffff:ff42:3be7
255.66.59.232 0:0:0:0:0:ffff:ff42:3be8
255.66.59.233 0:0:0:0:0:ffff:ff42:3be9
255.66.59.234 0:0:0:0:0:ffff:ff42:3bea
255.66.59.235 0:0:0:0:0:ffff:ff42:3beb
255.66.59.236 0:0:0:0:0:ffff:ff42:3bec
255.66.59.237 0:0:0:0:0:ffff:ff42:3bed
255.66.59.238 0:0:0:0:0:ffff:ff42:3bee
255.66.59.239 0:0:0:0:0:ffff:ff42:3bef
255.66.59.240 0:0:0:0:0:ffff:ff42:3bf0
255.66.59.241 0:0:0:0:0:ffff:ff42:3bf1
255.66.59.242 0:0:0:0:0:ffff:ff42:3bf2
255.66.59.243 0:0:0:0:0:ffff:ff42:3bf3
255.66.59.244 0:0:0:0:0:ffff:ff42:3bf4
255.66.59.245 0:0:0:0:0:ffff:ff42:3bf5
255.66.59.246 0:0:0:0:0:ffff:ff42:3bf6
255.66.59.247 0:0:0:0:0:ffff:ff42:3bf7
255.66.59.248 0:0:0:0:0:ffff:ff42:3bf8
255.66.59.249 0:0:0:0:0:ffff:ff42:3bf9
255.66.59.250 0:0:0:0:0:ffff:ff42:3bfa
255.66.59.251 0:0:0:0:0:ffff:ff42:3bfb
255.66.59.252 0:0:0:0:0:ffff:ff42:3bfc
255.66.59.253 0:0:0:0:0:ffff:ff42:3bfd
255.66.59.254 0:0:0:0:0:ffff:ff42:3bfe
255.66.59.255 0:0:0:0:0:ffff:ff42:3bff


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.