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
81.56.43.1 0:0:0:0:0:ffff:5138:2b01
81.56.43.2 0:0:0:0:0:ffff:5138:2b02
81.56.43.3 0:0:0:0:0:ffff:5138:2b03
81.56.43.4 0:0:0:0:0:ffff:5138:2b04
81.56.43.5 0:0:0:0:0:ffff:5138:2b05
81.56.43.6 0:0:0:0:0:ffff:5138:2b06
81.56.43.7 0:0:0:0:0:ffff:5138:2b07
81.56.43.8 0:0:0:0:0:ffff:5138:2b08
81.56.43.9 0:0:0:0:0:ffff:5138:2b09
81.56.43.10 0:0:0:0:0:ffff:5138:2b0a
81.56.43.11 0:0:0:0:0:ffff:5138:2b0b
81.56.43.12 0:0:0:0:0:ffff:5138:2b0c
81.56.43.13 0:0:0:0:0:ffff:5138:2b0d
81.56.43.14 0:0:0:0:0:ffff:5138:2b0e
81.56.43.15 0:0:0:0:0:ffff:5138:2b0f
81.56.43.16 0:0:0:0:0:ffff:5138:2b10
81.56.43.17 0:0:0:0:0:ffff:5138:2b11
81.56.43.18 0:0:0:0:0:ffff:5138:2b12
81.56.43.19 0:0:0:0:0:ffff:5138:2b13
81.56.43.20 0:0:0:0:0:ffff:5138:2b14
81.56.43.21 0:0:0:0:0:ffff:5138:2b15
81.56.43.22 0:0:0:0:0:ffff:5138:2b16
81.56.43.23 0:0:0:0:0:ffff:5138:2b17
81.56.43.24 0:0:0:0:0:ffff:5138:2b18
81.56.43.25 0:0:0:0:0:ffff:5138:2b19
81.56.43.26 0:0:0:0:0:ffff:5138:2b1a
81.56.43.27 0:0:0:0:0:ffff:5138:2b1b
81.56.43.28 0:0:0:0:0:ffff:5138:2b1c
81.56.43.29 0:0:0:0:0:ffff:5138:2b1d
81.56.43.30 0:0:0:0:0:ffff:5138:2b1e
81.56.43.31 0:0:0:0:0:ffff:5138:2b1f
81.56.43.32 0:0:0:0:0:ffff:5138:2b20
81.56.43.33 0:0:0:0:0:ffff:5138:2b21
81.56.43.34 0:0:0:0:0:ffff:5138:2b22
81.56.43.35 0:0:0:0:0:ffff:5138:2b23
81.56.43.36 0:0:0:0:0:ffff:5138:2b24
81.56.43.37 0:0:0:0:0:ffff:5138:2b25
81.56.43.38 0:0:0:0:0:ffff:5138:2b26
81.56.43.39 0:0:0:0:0:ffff:5138:2b27
81.56.43.40 0:0:0:0:0:ffff:5138:2b28
81.56.43.41 0:0:0:0:0:ffff:5138:2b29
81.56.43.42 0:0:0:0:0:ffff:5138:2b2a
81.56.43.43 0:0:0:0:0:ffff:5138:2b2b
81.56.43.44 0:0:0:0:0:ffff:5138:2b2c
81.56.43.45 0:0:0:0:0:ffff:5138:2b2d
81.56.43.46 0:0:0:0:0:ffff:5138:2b2e
81.56.43.47 0:0:0:0:0:ffff:5138:2b2f
81.56.43.48 0:0:0:0:0:ffff:5138:2b30
81.56.43.49 0:0:0:0:0:ffff:5138:2b31
81.56.43.50 0:0:0:0:0:ffff:5138:2b32
81.56.43.51 0:0:0:0:0:ffff:5138:2b33
81.56.43.52 0:0:0:0:0:ffff:5138:2b34
81.56.43.53 0:0:0:0:0:ffff:5138:2b35
81.56.43.54 0:0:0:0:0:ffff:5138:2b36
81.56.43.55 0:0:0:0:0:ffff:5138:2b37
81.56.43.56 0:0:0:0:0:ffff:5138:2b38
81.56.43.57 0:0:0:0:0:ffff:5138:2b39
81.56.43.58 0:0:0:0:0:ffff:5138:2b3a
81.56.43.59 0:0:0:0:0:ffff:5138:2b3b
81.56.43.60 0:0:0:0:0:ffff:5138:2b3c


81.56.43.61 0:0:0:0:0:ffff:5138:2b3d
81.56.43.62 0:0:0:0:0:ffff:5138:2b3e
81.56.43.63 0:0:0:0:0:ffff:5138:2b3f
81.56.43.64 0:0:0:0:0:ffff:5138:2b40
81.56.43.65 0:0:0:0:0:ffff:5138:2b41
81.56.43.66 0:0:0:0:0:ffff:5138:2b42
81.56.43.67 0:0:0:0:0:ffff:5138:2b43
81.56.43.68 0:0:0:0:0:ffff:5138:2b44
81.56.43.69 0:0:0:0:0:ffff:5138:2b45
81.56.43.70 0:0:0:0:0:ffff:5138:2b46
81.56.43.71 0:0:0:0:0:ffff:5138:2b47
81.56.43.72 0:0:0:0:0:ffff:5138:2b48
81.56.43.73 0:0:0:0:0:ffff:5138:2b49
81.56.43.74 0:0:0:0:0:ffff:5138:2b4a
81.56.43.75 0:0:0:0:0:ffff:5138:2b4b
81.56.43.76 0:0:0:0:0:ffff:5138:2b4c
81.56.43.77 0:0:0:0:0:ffff:5138:2b4d
81.56.43.78 0:0:0:0:0:ffff:5138:2b4e
81.56.43.79 0:0:0:0:0:ffff:5138:2b4f
81.56.43.80 0:0:0:0:0:ffff:5138:2b50
81.56.43.81 0:0:0:0:0:ffff:5138:2b51
81.56.43.82 0:0:0:0:0:ffff:5138:2b52
81.56.43.83 0:0:0:0:0:ffff:5138:2b53
81.56.43.84 0:0:0:0:0:ffff:5138:2b54
81.56.43.85 0:0:0:0:0:ffff:5138:2b55
81.56.43.86 0:0:0:0:0:ffff:5138:2b56
81.56.43.87 0:0:0:0:0:ffff:5138:2b57
81.56.43.88 0:0:0:0:0:ffff:5138:2b58
81.56.43.89 0:0:0:0:0:ffff:5138:2b59
81.56.43.90 0:0:0:0:0:ffff:5138:2b5a
81.56.43.91 0:0:0:0:0:ffff:5138:2b5b
81.56.43.92 0:0:0:0:0:ffff:5138:2b5c
81.56.43.93 0:0:0:0:0:ffff:5138:2b5d
81.56.43.94 0:0:0:0:0:ffff:5138:2b5e
81.56.43.95 0:0:0:0:0:ffff:5138:2b5f
81.56.43.96 0:0:0:0:0:ffff:5138:2b60
81.56.43.97 0:0:0:0:0:ffff:5138:2b61
81.56.43.98 0:0:0:0:0:ffff:5138:2b62
81.56.43.99 0:0:0:0:0:ffff:5138:2b63
81.56.43.100 0:0:0:0:0:ffff:5138:2b64
81.56.43.101 0:0:0:0:0:ffff:5138:2b65
81.56.43.102 0:0:0:0:0:ffff:5138:2b66
81.56.43.103 0:0:0:0:0:ffff:5138:2b67
81.56.43.104 0:0:0:0:0:ffff:5138:2b68
81.56.43.105 0:0:0:0:0:ffff:5138:2b69
81.56.43.106 0:0:0:0:0:ffff:5138:2b6a
81.56.43.107 0:0:0:0:0:ffff:5138:2b6b
81.56.43.108 0:0:0:0:0:ffff:5138:2b6c
81.56.43.109 0:0:0:0:0:ffff:5138:2b6d
81.56.43.110 0:0:0:0:0:ffff:5138:2b6e
81.56.43.111 0:0:0:0:0:ffff:5138:2b6f
81.56.43.112 0:0:0:0:0:ffff:5138:2b70
81.56.43.113 0:0:0:0:0:ffff:5138:2b71
81.56.43.114 0:0:0:0:0:ffff:5138:2b72
81.56.43.115 0:0:0:0:0:ffff:5138:2b73
81.56.43.116 0:0:0:0:0:ffff:5138:2b74
81.56.43.117 0:0:0:0:0:ffff:5138:2b75
81.56.43.118 0:0:0:0:0:ffff:5138:2b76
81.56.43.119 0:0:0:0:0:ffff:5138:2b77
81.56.43.120 0:0:0:0:0:ffff:5138:2b78


81.56.43.121 0:0:0:0:0:ffff:5138:2b79
81.56.43.122 0:0:0:0:0:ffff:5138:2b7a
81.56.43.123 0:0:0:0:0:ffff:5138:2b7b
81.56.43.124 0:0:0:0:0:ffff:5138:2b7c
81.56.43.125 0:0:0:0:0:ffff:5138:2b7d
81.56.43.126 0:0:0:0:0:ffff:5138:2b7e
81.56.43.127 0:0:0:0:0:ffff:5138:2b7f
81.56.43.128 0:0:0:0:0:ffff:5138:2b80
81.56.43.129 0:0:0:0:0:ffff:5138:2b81
81.56.43.130 0:0:0:0:0:ffff:5138:2b82
81.56.43.131 0:0:0:0:0:ffff:5138:2b83
81.56.43.132 0:0:0:0:0:ffff:5138:2b84
81.56.43.133 0:0:0:0:0:ffff:5138:2b85
81.56.43.134 0:0:0:0:0:ffff:5138:2b86
81.56.43.135 0:0:0:0:0:ffff:5138:2b87
81.56.43.136 0:0:0:0:0:ffff:5138:2b88
81.56.43.137 0:0:0:0:0:ffff:5138:2b89
81.56.43.138 0:0:0:0:0:ffff:5138:2b8a
81.56.43.139 0:0:0:0:0:ffff:5138:2b8b
81.56.43.140 0:0:0:0:0:ffff:5138:2b8c
81.56.43.141 0:0:0:0:0:ffff:5138:2b8d
81.56.43.142 0:0:0:0:0:ffff:5138:2b8e
81.56.43.143 0:0:0:0:0:ffff:5138:2b8f
81.56.43.144 0:0:0:0:0:ffff:5138:2b90
81.56.43.145 0:0:0:0:0:ffff:5138:2b91
81.56.43.146 0:0:0:0:0:ffff:5138:2b92
81.56.43.147 0:0:0:0:0:ffff:5138:2b93
81.56.43.148 0:0:0:0:0:ffff:5138:2b94
81.56.43.149 0:0:0:0:0:ffff:5138:2b95
81.56.43.150 0:0:0:0:0:ffff:5138:2b96
81.56.43.151 0:0:0:0:0:ffff:5138:2b97
81.56.43.152 0:0:0:0:0:ffff:5138:2b98
81.56.43.153 0:0:0:0:0:ffff:5138:2b99
81.56.43.154 0:0:0:0:0:ffff:5138:2b9a
81.56.43.155 0:0:0:0:0:ffff:5138:2b9b
81.56.43.156 0:0:0:0:0:ffff:5138:2b9c
81.56.43.157 0:0:0:0:0:ffff:5138:2b9d
81.56.43.158 0:0:0:0:0:ffff:5138:2b9e
81.56.43.159 0:0:0:0:0:ffff:5138:2b9f
81.56.43.160 0:0:0:0:0:ffff:5138:2ba0
81.56.43.161 0:0:0:0:0:ffff:5138:2ba1
81.56.43.162 0:0:0:0:0:ffff:5138:2ba2
81.56.43.163 0:0:0:0:0:ffff:5138:2ba3
81.56.43.164 0:0:0:0:0:ffff:5138:2ba4
81.56.43.165 0:0:0:0:0:ffff:5138:2ba5
81.56.43.166 0:0:0:0:0:ffff:5138:2ba6
81.56.43.167 0:0:0:0:0:ffff:5138:2ba7
81.56.43.168 0:0:0:0:0:ffff:5138:2ba8
81.56.43.169 0:0:0:0:0:ffff:5138:2ba9
81.56.43.170 0:0:0:0:0:ffff:5138:2baa
81.56.43.171 0:0:0:0:0:ffff:5138:2bab
81.56.43.172 0:0:0:0:0:ffff:5138:2bac
81.56.43.173 0:0:0:0:0:ffff:5138:2bad
81.56.43.174 0:0:0:0:0:ffff:5138:2bae
81.56.43.175 0:0:0:0:0:ffff:5138:2baf
81.56.43.176 0:0:0:0:0:ffff:5138:2bb0
81.56.43.177 0:0:0:0:0:ffff:5138:2bb1
81.56.43.178 0:0:0:0:0:ffff:5138:2bb2
81.56.43.179 0:0:0:0:0:ffff:5138:2bb3
81.56.43.180 0:0:0:0:0:ffff:5138:2bb4


81.56.43.181 0:0:0:0:0:ffff:5138:2bb5
81.56.43.182 0:0:0:0:0:ffff:5138:2bb6
81.56.43.183 0:0:0:0:0:ffff:5138:2bb7
81.56.43.184 0:0:0:0:0:ffff:5138:2bb8
81.56.43.185 0:0:0:0:0:ffff:5138:2bb9
81.56.43.186 0:0:0:0:0:ffff:5138:2bba
81.56.43.187 0:0:0:0:0:ffff:5138:2bbb
81.56.43.188 0:0:0:0:0:ffff:5138:2bbc
81.56.43.189 0:0:0:0:0:ffff:5138:2bbd
81.56.43.190 0:0:0:0:0:ffff:5138:2bbe
81.56.43.191 0:0:0:0:0:ffff:5138:2bbf
81.56.43.192 0:0:0:0:0:ffff:5138:2bc0
81.56.43.193 0:0:0:0:0:ffff:5138:2bc1
81.56.43.194 0:0:0:0:0:ffff:5138:2bc2
81.56.43.195 0:0:0:0:0:ffff:5138:2bc3
81.56.43.196 0:0:0:0:0:ffff:5138:2bc4
81.56.43.197 0:0:0:0:0:ffff:5138:2bc5
81.56.43.198 0:0:0:0:0:ffff:5138:2bc6
81.56.43.199 0:0:0:0:0:ffff:5138:2bc7
81.56.43.200 0:0:0:0:0:ffff:5138:2bc8
81.56.43.201 0:0:0:0:0:ffff:5138:2bc9
81.56.43.202 0:0:0:0:0:ffff:5138:2bca
81.56.43.203 0:0:0:0:0:ffff:5138:2bcb
81.56.43.204 0:0:0:0:0:ffff:5138:2bcc
81.56.43.205 0:0:0:0:0:ffff:5138:2bcd
81.56.43.206 0:0:0:0:0:ffff:5138:2bce
81.56.43.207 0:0:0:0:0:ffff:5138:2bcf
81.56.43.208 0:0:0:0:0:ffff:5138:2bd0
81.56.43.209 0:0:0:0:0:ffff:5138:2bd1
81.56.43.210 0:0:0:0:0:ffff:5138:2bd2
81.56.43.211 0:0:0:0:0:ffff:5138:2bd3
81.56.43.212 0:0:0:0:0:ffff:5138:2bd4
81.56.43.213 0:0:0:0:0:ffff:5138:2bd5
81.56.43.214 0:0:0:0:0:ffff:5138:2bd6
81.56.43.215 0:0:0:0:0:ffff:5138:2bd7
81.56.43.216 0:0:0:0:0:ffff:5138:2bd8
81.56.43.217 0:0:0:0:0:ffff:5138:2bd9
81.56.43.218 0:0:0:0:0:ffff:5138:2bda
81.56.43.219 0:0:0:0:0:ffff:5138:2bdb
81.56.43.220 0:0:0:0:0:ffff:5138:2bdc
81.56.43.221 0:0:0:0:0:ffff:5138:2bdd
81.56.43.222 0:0:0:0:0:ffff:5138:2bde
81.56.43.223 0:0:0:0:0:ffff:5138:2bdf
81.56.43.224 0:0:0:0:0:ffff:5138:2be0
81.56.43.225 0:0:0:0:0:ffff:5138:2be1
81.56.43.226 0:0:0:0:0:ffff:5138:2be2
81.56.43.227 0:0:0:0:0:ffff:5138:2be3
81.56.43.228 0:0:0:0:0:ffff:5138:2be4
81.56.43.229 0:0:0:0:0:ffff:5138:2be5
81.56.43.230 0:0:0:0:0:ffff:5138:2be6
81.56.43.231 0:0:0:0:0:ffff:5138:2be7
81.56.43.232 0:0:0:0:0:ffff:5138:2be8
81.56.43.233 0:0:0:0:0:ffff:5138:2be9
81.56.43.234 0:0:0:0:0:ffff:5138:2bea
81.56.43.235 0:0:0:0:0:ffff:5138:2beb
81.56.43.236 0:0:0:0:0:ffff:5138:2bec
81.56.43.237 0:0:0:0:0:ffff:5138:2bed
81.56.43.238 0:0:0:0:0:ffff:5138:2bee
81.56.43.239 0:0:0:0:0:ffff:5138:2bef
81.56.43.240 0:0:0:0:0:ffff:5138:2bf0
81.56.43.241 0:0:0:0:0:ffff:5138:2bf1
81.56.43.242 0:0:0:0:0:ffff:5138:2bf2
81.56.43.243 0:0:0:0:0:ffff:5138:2bf3
81.56.43.244 0:0:0:0:0:ffff:5138:2bf4
81.56.43.245 0:0:0:0:0:ffff:5138:2bf5
81.56.43.246 0:0:0:0:0:ffff:5138:2bf6
81.56.43.247 0:0:0:0:0:ffff:5138:2bf7
81.56.43.248 0:0:0:0:0:ffff:5138:2bf8
81.56.43.249 0:0:0:0:0:ffff:5138:2bf9
81.56.43.250 0:0:0:0:0:ffff:5138:2bfa
81.56.43.251 0:0:0:0:0:ffff:5138:2bfb
81.56.43.252 0:0:0:0:0:ffff:5138:2bfc
81.56.43.253 0:0:0:0:0:ffff:5138:2bfd
81.56.43.254 0:0:0:0:0:ffff:5138:2bfe
81.56.43.255 0:0:0:0:0:ffff:5138:2bff


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.