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
72.255.91.1 0:0:0:0:0:ffff:48ff:5b01
72.255.91.2 0:0:0:0:0:ffff:48ff:5b02
72.255.91.3 0:0:0:0:0:ffff:48ff:5b03
72.255.91.4 0:0:0:0:0:ffff:48ff:5b04
72.255.91.5 0:0:0:0:0:ffff:48ff:5b05
72.255.91.6 0:0:0:0:0:ffff:48ff:5b06
72.255.91.7 0:0:0:0:0:ffff:48ff:5b07
72.255.91.8 0:0:0:0:0:ffff:48ff:5b08
72.255.91.9 0:0:0:0:0:ffff:48ff:5b09
72.255.91.10 0:0:0:0:0:ffff:48ff:5b0a
72.255.91.11 0:0:0:0:0:ffff:48ff:5b0b
72.255.91.12 0:0:0:0:0:ffff:48ff:5b0c
72.255.91.13 0:0:0:0:0:ffff:48ff:5b0d
72.255.91.14 0:0:0:0:0:ffff:48ff:5b0e
72.255.91.15 0:0:0:0:0:ffff:48ff:5b0f
72.255.91.16 0:0:0:0:0:ffff:48ff:5b10
72.255.91.17 0:0:0:0:0:ffff:48ff:5b11
72.255.91.18 0:0:0:0:0:ffff:48ff:5b12
72.255.91.19 0:0:0:0:0:ffff:48ff:5b13
72.255.91.20 0:0:0:0:0:ffff:48ff:5b14
72.255.91.21 0:0:0:0:0:ffff:48ff:5b15
72.255.91.22 0:0:0:0:0:ffff:48ff:5b16
72.255.91.23 0:0:0:0:0:ffff:48ff:5b17
72.255.91.24 0:0:0:0:0:ffff:48ff:5b18
72.255.91.25 0:0:0:0:0:ffff:48ff:5b19
72.255.91.26 0:0:0:0:0:ffff:48ff:5b1a
72.255.91.27 0:0:0:0:0:ffff:48ff:5b1b
72.255.91.28 0:0:0:0:0:ffff:48ff:5b1c
72.255.91.29 0:0:0:0:0:ffff:48ff:5b1d
72.255.91.30 0:0:0:0:0:ffff:48ff:5b1e
72.255.91.31 0:0:0:0:0:ffff:48ff:5b1f
72.255.91.32 0:0:0:0:0:ffff:48ff:5b20
72.255.91.33 0:0:0:0:0:ffff:48ff:5b21
72.255.91.34 0:0:0:0:0:ffff:48ff:5b22
72.255.91.35 0:0:0:0:0:ffff:48ff:5b23
72.255.91.36 0:0:0:0:0:ffff:48ff:5b24
72.255.91.37 0:0:0:0:0:ffff:48ff:5b25
72.255.91.38 0:0:0:0:0:ffff:48ff:5b26
72.255.91.39 0:0:0:0:0:ffff:48ff:5b27
72.255.91.40 0:0:0:0:0:ffff:48ff:5b28
72.255.91.41 0:0:0:0:0:ffff:48ff:5b29
72.255.91.42 0:0:0:0:0:ffff:48ff:5b2a
72.255.91.43 0:0:0:0:0:ffff:48ff:5b2b
72.255.91.44 0:0:0:0:0:ffff:48ff:5b2c
72.255.91.45 0:0:0:0:0:ffff:48ff:5b2d
72.255.91.46 0:0:0:0:0:ffff:48ff:5b2e
72.255.91.47 0:0:0:0:0:ffff:48ff:5b2f
72.255.91.48 0:0:0:0:0:ffff:48ff:5b30
72.255.91.49 0:0:0:0:0:ffff:48ff:5b31
72.255.91.50 0:0:0:0:0:ffff:48ff:5b32
72.255.91.51 0:0:0:0:0:ffff:48ff:5b33
72.255.91.52 0:0:0:0:0:ffff:48ff:5b34
72.255.91.53 0:0:0:0:0:ffff:48ff:5b35
72.255.91.54 0:0:0:0:0:ffff:48ff:5b36
72.255.91.55 0:0:0:0:0:ffff:48ff:5b37
72.255.91.56 0:0:0:0:0:ffff:48ff:5b38
72.255.91.57 0:0:0:0:0:ffff:48ff:5b39
72.255.91.58 0:0:0:0:0:ffff:48ff:5b3a
72.255.91.59 0:0:0:0:0:ffff:48ff:5b3b
72.255.91.60 0:0:0:0:0:ffff:48ff:5b3c


72.255.91.61 0:0:0:0:0:ffff:48ff:5b3d
72.255.91.62 0:0:0:0:0:ffff:48ff:5b3e
72.255.91.63 0:0:0:0:0:ffff:48ff:5b3f
72.255.91.64 0:0:0:0:0:ffff:48ff:5b40
72.255.91.65 0:0:0:0:0:ffff:48ff:5b41
72.255.91.66 0:0:0:0:0:ffff:48ff:5b42
72.255.91.67 0:0:0:0:0:ffff:48ff:5b43
72.255.91.68 0:0:0:0:0:ffff:48ff:5b44
72.255.91.69 0:0:0:0:0:ffff:48ff:5b45
72.255.91.70 0:0:0:0:0:ffff:48ff:5b46
72.255.91.71 0:0:0:0:0:ffff:48ff:5b47
72.255.91.72 0:0:0:0:0:ffff:48ff:5b48
72.255.91.73 0:0:0:0:0:ffff:48ff:5b49
72.255.91.74 0:0:0:0:0:ffff:48ff:5b4a
72.255.91.75 0:0:0:0:0:ffff:48ff:5b4b
72.255.91.76 0:0:0:0:0:ffff:48ff:5b4c
72.255.91.77 0:0:0:0:0:ffff:48ff:5b4d
72.255.91.78 0:0:0:0:0:ffff:48ff:5b4e
72.255.91.79 0:0:0:0:0:ffff:48ff:5b4f
72.255.91.80 0:0:0:0:0:ffff:48ff:5b50
72.255.91.81 0:0:0:0:0:ffff:48ff:5b51
72.255.91.82 0:0:0:0:0:ffff:48ff:5b52
72.255.91.83 0:0:0:0:0:ffff:48ff:5b53
72.255.91.84 0:0:0:0:0:ffff:48ff:5b54
72.255.91.85 0:0:0:0:0:ffff:48ff:5b55
72.255.91.86 0:0:0:0:0:ffff:48ff:5b56
72.255.91.87 0:0:0:0:0:ffff:48ff:5b57
72.255.91.88 0:0:0:0:0:ffff:48ff:5b58
72.255.91.89 0:0:0:0:0:ffff:48ff:5b59
72.255.91.90 0:0:0:0:0:ffff:48ff:5b5a
72.255.91.91 0:0:0:0:0:ffff:48ff:5b5b
72.255.91.92 0:0:0:0:0:ffff:48ff:5b5c
72.255.91.93 0:0:0:0:0:ffff:48ff:5b5d
72.255.91.94 0:0:0:0:0:ffff:48ff:5b5e
72.255.91.95 0:0:0:0:0:ffff:48ff:5b5f
72.255.91.96 0:0:0:0:0:ffff:48ff:5b60
72.255.91.97 0:0:0:0:0:ffff:48ff:5b61
72.255.91.98 0:0:0:0:0:ffff:48ff:5b62
72.255.91.99 0:0:0:0:0:ffff:48ff:5b63
72.255.91.100 0:0:0:0:0:ffff:48ff:5b64
72.255.91.101 0:0:0:0:0:ffff:48ff:5b65
72.255.91.102 0:0:0:0:0:ffff:48ff:5b66
72.255.91.103 0:0:0:0:0:ffff:48ff:5b67
72.255.91.104 0:0:0:0:0:ffff:48ff:5b68
72.255.91.105 0:0:0:0:0:ffff:48ff:5b69
72.255.91.106 0:0:0:0:0:ffff:48ff:5b6a
72.255.91.107 0:0:0:0:0:ffff:48ff:5b6b
72.255.91.108 0:0:0:0:0:ffff:48ff:5b6c
72.255.91.109 0:0:0:0:0:ffff:48ff:5b6d
72.255.91.110 0:0:0:0:0:ffff:48ff:5b6e
72.255.91.111 0:0:0:0:0:ffff:48ff:5b6f
72.255.91.112 0:0:0:0:0:ffff:48ff:5b70
72.255.91.113 0:0:0:0:0:ffff:48ff:5b71
72.255.91.114 0:0:0:0:0:ffff:48ff:5b72
72.255.91.115 0:0:0:0:0:ffff:48ff:5b73
72.255.91.116 0:0:0:0:0:ffff:48ff:5b74
72.255.91.117 0:0:0:0:0:ffff:48ff:5b75
72.255.91.118 0:0:0:0:0:ffff:48ff:5b76
72.255.91.119 0:0:0:0:0:ffff:48ff:5b77
72.255.91.120 0:0:0:0:0:ffff:48ff:5b78


72.255.91.121 0:0:0:0:0:ffff:48ff:5b79
72.255.91.122 0:0:0:0:0:ffff:48ff:5b7a
72.255.91.123 0:0:0:0:0:ffff:48ff:5b7b
72.255.91.124 0:0:0:0:0:ffff:48ff:5b7c
72.255.91.125 0:0:0:0:0:ffff:48ff:5b7d
72.255.91.126 0:0:0:0:0:ffff:48ff:5b7e
72.255.91.127 0:0:0:0:0:ffff:48ff:5b7f
72.255.91.128 0:0:0:0:0:ffff:48ff:5b80
72.255.91.129 0:0:0:0:0:ffff:48ff:5b81
72.255.91.130 0:0:0:0:0:ffff:48ff:5b82
72.255.91.131 0:0:0:0:0:ffff:48ff:5b83
72.255.91.132 0:0:0:0:0:ffff:48ff:5b84
72.255.91.133 0:0:0:0:0:ffff:48ff:5b85
72.255.91.134 0:0:0:0:0:ffff:48ff:5b86
72.255.91.135 0:0:0:0:0:ffff:48ff:5b87
72.255.91.136 0:0:0:0:0:ffff:48ff:5b88
72.255.91.137 0:0:0:0:0:ffff:48ff:5b89
72.255.91.138 0:0:0:0:0:ffff:48ff:5b8a
72.255.91.139 0:0:0:0:0:ffff:48ff:5b8b
72.255.91.140 0:0:0:0:0:ffff:48ff:5b8c
72.255.91.141 0:0:0:0:0:ffff:48ff:5b8d
72.255.91.142 0:0:0:0:0:ffff:48ff:5b8e
72.255.91.143 0:0:0:0:0:ffff:48ff:5b8f
72.255.91.144 0:0:0:0:0:ffff:48ff:5b90
72.255.91.145 0:0:0:0:0:ffff:48ff:5b91
72.255.91.146 0:0:0:0:0:ffff:48ff:5b92
72.255.91.147 0:0:0:0:0:ffff:48ff:5b93
72.255.91.148 0:0:0:0:0:ffff:48ff:5b94
72.255.91.149 0:0:0:0:0:ffff:48ff:5b95
72.255.91.150 0:0:0:0:0:ffff:48ff:5b96
72.255.91.151 0:0:0:0:0:ffff:48ff:5b97
72.255.91.152 0:0:0:0:0:ffff:48ff:5b98
72.255.91.153 0:0:0:0:0:ffff:48ff:5b99
72.255.91.154 0:0:0:0:0:ffff:48ff:5b9a
72.255.91.155 0:0:0:0:0:ffff:48ff:5b9b
72.255.91.156 0:0:0:0:0:ffff:48ff:5b9c
72.255.91.157 0:0:0:0:0:ffff:48ff:5b9d
72.255.91.158 0:0:0:0:0:ffff:48ff:5b9e
72.255.91.159 0:0:0:0:0:ffff:48ff:5b9f
72.255.91.160 0:0:0:0:0:ffff:48ff:5ba0
72.255.91.161 0:0:0:0:0:ffff:48ff:5ba1
72.255.91.162 0:0:0:0:0:ffff:48ff:5ba2
72.255.91.163 0:0:0:0:0:ffff:48ff:5ba3
72.255.91.164 0:0:0:0:0:ffff:48ff:5ba4
72.255.91.165 0:0:0:0:0:ffff:48ff:5ba5
72.255.91.166 0:0:0:0:0:ffff:48ff:5ba6
72.255.91.167 0:0:0:0:0:ffff:48ff:5ba7
72.255.91.168 0:0:0:0:0:ffff:48ff:5ba8
72.255.91.169 0:0:0:0:0:ffff:48ff:5ba9
72.255.91.170 0:0:0:0:0:ffff:48ff:5baa
72.255.91.171 0:0:0:0:0:ffff:48ff:5bab
72.255.91.172 0:0:0:0:0:ffff:48ff:5bac
72.255.91.173 0:0:0:0:0:ffff:48ff:5bad
72.255.91.174 0:0:0:0:0:ffff:48ff:5bae
72.255.91.175 0:0:0:0:0:ffff:48ff:5baf
72.255.91.176 0:0:0:0:0:ffff:48ff:5bb0
72.255.91.177 0:0:0:0:0:ffff:48ff:5bb1
72.255.91.178 0:0:0:0:0:ffff:48ff:5bb2
72.255.91.179 0:0:0:0:0:ffff:48ff:5bb3
72.255.91.180 0:0:0:0:0:ffff:48ff:5bb4


72.255.91.181 0:0:0:0:0:ffff:48ff:5bb5
72.255.91.182 0:0:0:0:0:ffff:48ff:5bb6
72.255.91.183 0:0:0:0:0:ffff:48ff:5bb7
72.255.91.184 0:0:0:0:0:ffff:48ff:5bb8
72.255.91.185 0:0:0:0:0:ffff:48ff:5bb9
72.255.91.186 0:0:0:0:0:ffff:48ff:5bba
72.255.91.187 0:0:0:0:0:ffff:48ff:5bbb
72.255.91.188 0:0:0:0:0:ffff:48ff:5bbc
72.255.91.189 0:0:0:0:0:ffff:48ff:5bbd
72.255.91.190 0:0:0:0:0:ffff:48ff:5bbe
72.255.91.191 0:0:0:0:0:ffff:48ff:5bbf
72.255.91.192 0:0:0:0:0:ffff:48ff:5bc0
72.255.91.193 0:0:0:0:0:ffff:48ff:5bc1
72.255.91.194 0:0:0:0:0:ffff:48ff:5bc2
72.255.91.195 0:0:0:0:0:ffff:48ff:5bc3
72.255.91.196 0:0:0:0:0:ffff:48ff:5bc4
72.255.91.197 0:0:0:0:0:ffff:48ff:5bc5
72.255.91.198 0:0:0:0:0:ffff:48ff:5bc6
72.255.91.199 0:0:0:0:0:ffff:48ff:5bc7
72.255.91.200 0:0:0:0:0:ffff:48ff:5bc8
72.255.91.201 0:0:0:0:0:ffff:48ff:5bc9
72.255.91.202 0:0:0:0:0:ffff:48ff:5bca
72.255.91.203 0:0:0:0:0:ffff:48ff:5bcb
72.255.91.204 0:0:0:0:0:ffff:48ff:5bcc
72.255.91.205 0:0:0:0:0:ffff:48ff:5bcd
72.255.91.206 0:0:0:0:0:ffff:48ff:5bce
72.255.91.207 0:0:0:0:0:ffff:48ff:5bcf
72.255.91.208 0:0:0:0:0:ffff:48ff:5bd0
72.255.91.209 0:0:0:0:0:ffff:48ff:5bd1
72.255.91.210 0:0:0:0:0:ffff:48ff:5bd2
72.255.91.211 0:0:0:0:0:ffff:48ff:5bd3
72.255.91.212 0:0:0:0:0:ffff:48ff:5bd4
72.255.91.213 0:0:0:0:0:ffff:48ff:5bd5
72.255.91.214 0:0:0:0:0:ffff:48ff:5bd6
72.255.91.215 0:0:0:0:0:ffff:48ff:5bd7
72.255.91.216 0:0:0:0:0:ffff:48ff:5bd8
72.255.91.217 0:0:0:0:0:ffff:48ff:5bd9
72.255.91.218 0:0:0:0:0:ffff:48ff:5bda
72.255.91.219 0:0:0:0:0:ffff:48ff:5bdb
72.255.91.220 0:0:0:0:0:ffff:48ff:5bdc
72.255.91.221 0:0:0:0:0:ffff:48ff:5bdd
72.255.91.222 0:0:0:0:0:ffff:48ff:5bde
72.255.91.223 0:0:0:0:0:ffff:48ff:5bdf
72.255.91.224 0:0:0:0:0:ffff:48ff:5be0
72.255.91.225 0:0:0:0:0:ffff:48ff:5be1
72.255.91.226 0:0:0:0:0:ffff:48ff:5be2
72.255.91.227 0:0:0:0:0:ffff:48ff:5be3
72.255.91.228 0:0:0:0:0:ffff:48ff:5be4
72.255.91.229 0:0:0:0:0:ffff:48ff:5be5
72.255.91.230 0:0:0:0:0:ffff:48ff:5be6
72.255.91.231 0:0:0:0:0:ffff:48ff:5be7
72.255.91.232 0:0:0:0:0:ffff:48ff:5be8
72.255.91.233 0:0:0:0:0:ffff:48ff:5be9
72.255.91.234 0:0:0:0:0:ffff:48ff:5bea
72.255.91.235 0:0:0:0:0:ffff:48ff:5beb
72.255.91.236 0:0:0:0:0:ffff:48ff:5bec
72.255.91.237 0:0:0:0:0:ffff:48ff:5bed
72.255.91.238 0:0:0:0:0:ffff:48ff:5bee
72.255.91.239 0:0:0:0:0:ffff:48ff:5bef
72.255.91.240 0:0:0:0:0:ffff:48ff:5bf0
72.255.91.241 0:0:0:0:0:ffff:48ff:5bf1
72.255.91.242 0:0:0:0:0:ffff:48ff:5bf2
72.255.91.243 0:0:0:0:0:ffff:48ff:5bf3
72.255.91.244 0:0:0:0:0:ffff:48ff:5bf4
72.255.91.245 0:0:0:0:0:ffff:48ff:5bf5
72.255.91.246 0:0:0:0:0:ffff:48ff:5bf6
72.255.91.247 0:0:0:0:0:ffff:48ff:5bf7
72.255.91.248 0:0:0:0:0:ffff:48ff:5bf8
72.255.91.249 0:0:0:0:0:ffff:48ff:5bf9
72.255.91.250 0:0:0:0:0:ffff:48ff:5bfa
72.255.91.251 0:0:0:0:0:ffff:48ff:5bfb
72.255.91.252 0:0:0:0:0:ffff:48ff:5bfc
72.255.91.253 0:0:0:0:0:ffff:48ff:5bfd
72.255.91.254 0:0:0:0:0:ffff:48ff:5bfe
72.255.91.255 0:0:0:0:0:ffff:48ff:5bff


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.