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
72.5.12.1 0:0:0:0:0:ffff:4805:c01
72.5.12.2 0:0:0:0:0:ffff:4805:c02
72.5.12.3 0:0:0:0:0:ffff:4805:c03
72.5.12.4 0:0:0:0:0:ffff:4805:c04
72.5.12.5 0:0:0:0:0:ffff:4805:c05
72.5.12.6 0:0:0:0:0:ffff:4805:c06
72.5.12.7 0:0:0:0:0:ffff:4805:c07
72.5.12.8 0:0:0:0:0:ffff:4805:c08
72.5.12.9 0:0:0:0:0:ffff:4805:c09
72.5.12.10 0:0:0:0:0:ffff:4805:c0a
72.5.12.11 0:0:0:0:0:ffff:4805:c0b
72.5.12.12 0:0:0:0:0:ffff:4805:c0c
72.5.12.13 0:0:0:0:0:ffff:4805:c0d
72.5.12.14 0:0:0:0:0:ffff:4805:c0e
72.5.12.15 0:0:0:0:0:ffff:4805:c0f
72.5.12.16 0:0:0:0:0:ffff:4805:c10
72.5.12.17 0:0:0:0:0:ffff:4805:c11
72.5.12.18 0:0:0:0:0:ffff:4805:c12
72.5.12.19 0:0:0:0:0:ffff:4805:c13
72.5.12.20 0:0:0:0:0:ffff:4805:c14
72.5.12.21 0:0:0:0:0:ffff:4805:c15
72.5.12.22 0:0:0:0:0:ffff:4805:c16
72.5.12.23 0:0:0:0:0:ffff:4805:c17
72.5.12.24 0:0:0:0:0:ffff:4805:c18
72.5.12.25 0:0:0:0:0:ffff:4805:c19
72.5.12.26 0:0:0:0:0:ffff:4805:c1a
72.5.12.27 0:0:0:0:0:ffff:4805:c1b
72.5.12.28 0:0:0:0:0:ffff:4805:c1c
72.5.12.29 0:0:0:0:0:ffff:4805:c1d
72.5.12.30 0:0:0:0:0:ffff:4805:c1e
72.5.12.31 0:0:0:0:0:ffff:4805:c1f
72.5.12.32 0:0:0:0:0:ffff:4805:c20
72.5.12.33 0:0:0:0:0:ffff:4805:c21
72.5.12.34 0:0:0:0:0:ffff:4805:c22
72.5.12.35 0:0:0:0:0:ffff:4805:c23
72.5.12.36 0:0:0:0:0:ffff:4805:c24
72.5.12.37 0:0:0:0:0:ffff:4805:c25
72.5.12.38 0:0:0:0:0:ffff:4805:c26
72.5.12.39 0:0:0:0:0:ffff:4805:c27
72.5.12.40 0:0:0:0:0:ffff:4805:c28
72.5.12.41 0:0:0:0:0:ffff:4805:c29
72.5.12.42 0:0:0:0:0:ffff:4805:c2a
72.5.12.43 0:0:0:0:0:ffff:4805:c2b
72.5.12.44 0:0:0:0:0:ffff:4805:c2c
72.5.12.45 0:0:0:0:0:ffff:4805:c2d
72.5.12.46 0:0:0:0:0:ffff:4805:c2e
72.5.12.47 0:0:0:0:0:ffff:4805:c2f
72.5.12.48 0:0:0:0:0:ffff:4805:c30
72.5.12.49 0:0:0:0:0:ffff:4805:c31
72.5.12.50 0:0:0:0:0:ffff:4805:c32
72.5.12.51 0:0:0:0:0:ffff:4805:c33
72.5.12.52 0:0:0:0:0:ffff:4805:c34
72.5.12.53 0:0:0:0:0:ffff:4805:c35
72.5.12.54 0:0:0:0:0:ffff:4805:c36
72.5.12.55 0:0:0:0:0:ffff:4805:c37
72.5.12.56 0:0:0:0:0:ffff:4805:c38
72.5.12.57 0:0:0:0:0:ffff:4805:c39
72.5.12.58 0:0:0:0:0:ffff:4805:c3a
72.5.12.59 0:0:0:0:0:ffff:4805:c3b
72.5.12.60 0:0:0:0:0:ffff:4805:c3c


72.5.12.61 0:0:0:0:0:ffff:4805:c3d
72.5.12.62 0:0:0:0:0:ffff:4805:c3e
72.5.12.63 0:0:0:0:0:ffff:4805:c3f
72.5.12.64 0:0:0:0:0:ffff:4805:c40
72.5.12.65 0:0:0:0:0:ffff:4805:c41
72.5.12.66 0:0:0:0:0:ffff:4805:c42
72.5.12.67 0:0:0:0:0:ffff:4805:c43
72.5.12.68 0:0:0:0:0:ffff:4805:c44
72.5.12.69 0:0:0:0:0:ffff:4805:c45
72.5.12.70 0:0:0:0:0:ffff:4805:c46
72.5.12.71 0:0:0:0:0:ffff:4805:c47
72.5.12.72 0:0:0:0:0:ffff:4805:c48
72.5.12.73 0:0:0:0:0:ffff:4805:c49
72.5.12.74 0:0:0:0:0:ffff:4805:c4a
72.5.12.75 0:0:0:0:0:ffff:4805:c4b
72.5.12.76 0:0:0:0:0:ffff:4805:c4c
72.5.12.77 0:0:0:0:0:ffff:4805:c4d
72.5.12.78 0:0:0:0:0:ffff:4805:c4e
72.5.12.79 0:0:0:0:0:ffff:4805:c4f
72.5.12.80 0:0:0:0:0:ffff:4805:c50
72.5.12.81 0:0:0:0:0:ffff:4805:c51
72.5.12.82 0:0:0:0:0:ffff:4805:c52
72.5.12.83 0:0:0:0:0:ffff:4805:c53
72.5.12.84 0:0:0:0:0:ffff:4805:c54
72.5.12.85 0:0:0:0:0:ffff:4805:c55
72.5.12.86 0:0:0:0:0:ffff:4805:c56
72.5.12.87 0:0:0:0:0:ffff:4805:c57
72.5.12.88 0:0:0:0:0:ffff:4805:c58
72.5.12.89 0:0:0:0:0:ffff:4805:c59
72.5.12.90 0:0:0:0:0:ffff:4805:c5a
72.5.12.91 0:0:0:0:0:ffff:4805:c5b
72.5.12.92 0:0:0:0:0:ffff:4805:c5c
72.5.12.93 0:0:0:0:0:ffff:4805:c5d
72.5.12.94 0:0:0:0:0:ffff:4805:c5e
72.5.12.95 0:0:0:0:0:ffff:4805:c5f
72.5.12.96 0:0:0:0:0:ffff:4805:c60
72.5.12.97 0:0:0:0:0:ffff:4805:c61
72.5.12.98 0:0:0:0:0:ffff:4805:c62
72.5.12.99 0:0:0:0:0:ffff:4805:c63
72.5.12.100 0:0:0:0:0:ffff:4805:c64
72.5.12.101 0:0:0:0:0:ffff:4805:c65
72.5.12.102 0:0:0:0:0:ffff:4805:c66
72.5.12.103 0:0:0:0:0:ffff:4805:c67
72.5.12.104 0:0:0:0:0:ffff:4805:c68
72.5.12.105 0:0:0:0:0:ffff:4805:c69
72.5.12.106 0:0:0:0:0:ffff:4805:c6a
72.5.12.107 0:0:0:0:0:ffff:4805:c6b
72.5.12.108 0:0:0:0:0:ffff:4805:c6c
72.5.12.109 0:0:0:0:0:ffff:4805:c6d
72.5.12.110 0:0:0:0:0:ffff:4805:c6e
72.5.12.111 0:0:0:0:0:ffff:4805:c6f
72.5.12.112 0:0:0:0:0:ffff:4805:c70
72.5.12.113 0:0:0:0:0:ffff:4805:c71
72.5.12.114 0:0:0:0:0:ffff:4805:c72
72.5.12.115 0:0:0:0:0:ffff:4805:c73
72.5.12.116 0:0:0:0:0:ffff:4805:c74
72.5.12.117 0:0:0:0:0:ffff:4805:c75
72.5.12.118 0:0:0:0:0:ffff:4805:c76
72.5.12.119 0:0:0:0:0:ffff:4805:c77
72.5.12.120 0:0:0:0:0:ffff:4805:c78


72.5.12.121 0:0:0:0:0:ffff:4805:c79
72.5.12.122 0:0:0:0:0:ffff:4805:c7a
72.5.12.123 0:0:0:0:0:ffff:4805:c7b
72.5.12.124 0:0:0:0:0:ffff:4805:c7c
72.5.12.125 0:0:0:0:0:ffff:4805:c7d
72.5.12.126 0:0:0:0:0:ffff:4805:c7e
72.5.12.127 0:0:0:0:0:ffff:4805:c7f
72.5.12.128 0:0:0:0:0:ffff:4805:c80
72.5.12.129 0:0:0:0:0:ffff:4805:c81
72.5.12.130 0:0:0:0:0:ffff:4805:c82
72.5.12.131 0:0:0:0:0:ffff:4805:c83
72.5.12.132 0:0:0:0:0:ffff:4805:c84
72.5.12.133 0:0:0:0:0:ffff:4805:c85
72.5.12.134 0:0:0:0:0:ffff:4805:c86
72.5.12.135 0:0:0:0:0:ffff:4805:c87
72.5.12.136 0:0:0:0:0:ffff:4805:c88
72.5.12.137 0:0:0:0:0:ffff:4805:c89
72.5.12.138 0:0:0:0:0:ffff:4805:c8a
72.5.12.139 0:0:0:0:0:ffff:4805:c8b
72.5.12.140 0:0:0:0:0:ffff:4805:c8c
72.5.12.141 0:0:0:0:0:ffff:4805:c8d
72.5.12.142 0:0:0:0:0:ffff:4805:c8e
72.5.12.143 0:0:0:0:0:ffff:4805:c8f
72.5.12.144 0:0:0:0:0:ffff:4805:c90
72.5.12.145 0:0:0:0:0:ffff:4805:c91
72.5.12.146 0:0:0:0:0:ffff:4805:c92
72.5.12.147 0:0:0:0:0:ffff:4805:c93
72.5.12.148 0:0:0:0:0:ffff:4805:c94
72.5.12.149 0:0:0:0:0:ffff:4805:c95
72.5.12.150 0:0:0:0:0:ffff:4805:c96
72.5.12.151 0:0:0:0:0:ffff:4805:c97
72.5.12.152 0:0:0:0:0:ffff:4805:c98
72.5.12.153 0:0:0:0:0:ffff:4805:c99
72.5.12.154 0:0:0:0:0:ffff:4805:c9a
72.5.12.155 0:0:0:0:0:ffff:4805:c9b
72.5.12.156 0:0:0:0:0:ffff:4805:c9c
72.5.12.157 0:0:0:0:0:ffff:4805:c9d
72.5.12.158 0:0:0:0:0:ffff:4805:c9e
72.5.12.159 0:0:0:0:0:ffff:4805:c9f
72.5.12.160 0:0:0:0:0:ffff:4805:ca0
72.5.12.161 0:0:0:0:0:ffff:4805:ca1
72.5.12.162 0:0:0:0:0:ffff:4805:ca2
72.5.12.163 0:0:0:0:0:ffff:4805:ca3
72.5.12.164 0:0:0:0:0:ffff:4805:ca4
72.5.12.165 0:0:0:0:0:ffff:4805:ca5
72.5.12.166 0:0:0:0:0:ffff:4805:ca6
72.5.12.167 0:0:0:0:0:ffff:4805:ca7
72.5.12.168 0:0:0:0:0:ffff:4805:ca8
72.5.12.169 0:0:0:0:0:ffff:4805:ca9
72.5.12.170 0:0:0:0:0:ffff:4805:caa
72.5.12.171 0:0:0:0:0:ffff:4805:cab
72.5.12.172 0:0:0:0:0:ffff:4805:cac
72.5.12.173 0:0:0:0:0:ffff:4805:cad
72.5.12.174 0:0:0:0:0:ffff:4805:cae
72.5.12.175 0:0:0:0:0:ffff:4805:caf
72.5.12.176 0:0:0:0:0:ffff:4805:cb0
72.5.12.177 0:0:0:0:0:ffff:4805:cb1
72.5.12.178 0:0:0:0:0:ffff:4805:cb2
72.5.12.179 0:0:0:0:0:ffff:4805:cb3
72.5.12.180 0:0:0:0:0:ffff:4805:cb4


72.5.12.181 0:0:0:0:0:ffff:4805:cb5
72.5.12.182 0:0:0:0:0:ffff:4805:cb6
72.5.12.183 0:0:0:0:0:ffff:4805:cb7
72.5.12.184 0:0:0:0:0:ffff:4805:cb8
72.5.12.185 0:0:0:0:0:ffff:4805:cb9
72.5.12.186 0:0:0:0:0:ffff:4805:cba
72.5.12.187 0:0:0:0:0:ffff:4805:cbb
72.5.12.188 0:0:0:0:0:ffff:4805:cbc
72.5.12.189 0:0:0:0:0:ffff:4805:cbd
72.5.12.190 0:0:0:0:0:ffff:4805:cbe
72.5.12.191 0:0:0:0:0:ffff:4805:cbf
72.5.12.192 0:0:0:0:0:ffff:4805:cc0
72.5.12.193 0:0:0:0:0:ffff:4805:cc1
72.5.12.194 0:0:0:0:0:ffff:4805:cc2
72.5.12.195 0:0:0:0:0:ffff:4805:cc3
72.5.12.196 0:0:0:0:0:ffff:4805:cc4
72.5.12.197 0:0:0:0:0:ffff:4805:cc5
72.5.12.198 0:0:0:0:0:ffff:4805:cc6
72.5.12.199 0:0:0:0:0:ffff:4805:cc7
72.5.12.200 0:0:0:0:0:ffff:4805:cc8
72.5.12.201 0:0:0:0:0:ffff:4805:cc9
72.5.12.202 0:0:0:0:0:ffff:4805:cca
72.5.12.203 0:0:0:0:0:ffff:4805:ccb
72.5.12.204 0:0:0:0:0:ffff:4805:ccc
72.5.12.205 0:0:0:0:0:ffff:4805:ccd
72.5.12.206 0:0:0:0:0:ffff:4805:cce
72.5.12.207 0:0:0:0:0:ffff:4805:ccf
72.5.12.208 0:0:0:0:0:ffff:4805:cd0
72.5.12.209 0:0:0:0:0:ffff:4805:cd1
72.5.12.210 0:0:0:0:0:ffff:4805:cd2
72.5.12.211 0:0:0:0:0:ffff:4805:cd3
72.5.12.212 0:0:0:0:0:ffff:4805:cd4
72.5.12.213 0:0:0:0:0:ffff:4805:cd5
72.5.12.214 0:0:0:0:0:ffff:4805:cd6
72.5.12.215 0:0:0:0:0:ffff:4805:cd7
72.5.12.216 0:0:0:0:0:ffff:4805:cd8
72.5.12.217 0:0:0:0:0:ffff:4805:cd9
72.5.12.218 0:0:0:0:0:ffff:4805:cda
72.5.12.219 0:0:0:0:0:ffff:4805:cdb
72.5.12.220 0:0:0:0:0:ffff:4805:cdc
72.5.12.221 0:0:0:0:0:ffff:4805:cdd
72.5.12.222 0:0:0:0:0:ffff:4805:cde
72.5.12.223 0:0:0:0:0:ffff:4805:cdf
72.5.12.224 0:0:0:0:0:ffff:4805:ce0
72.5.12.225 0:0:0:0:0:ffff:4805:ce1
72.5.12.226 0:0:0:0:0:ffff:4805:ce2
72.5.12.227 0:0:0:0:0:ffff:4805:ce3
72.5.12.228 0:0:0:0:0:ffff:4805:ce4
72.5.12.229 0:0:0:0:0:ffff:4805:ce5
72.5.12.230 0:0:0:0:0:ffff:4805:ce6
72.5.12.231 0:0:0:0:0:ffff:4805:ce7
72.5.12.232 0:0:0:0:0:ffff:4805:ce8
72.5.12.233 0:0:0:0:0:ffff:4805:ce9
72.5.12.234 0:0:0:0:0:ffff:4805:cea
72.5.12.235 0:0:0:0:0:ffff:4805:ceb
72.5.12.236 0:0:0:0:0:ffff:4805:cec
72.5.12.237 0:0:0:0:0:ffff:4805:ced
72.5.12.238 0:0:0:0:0:ffff:4805:cee
72.5.12.239 0:0:0:0:0:ffff:4805:cef
72.5.12.240 0:0:0:0:0:ffff:4805:cf0
72.5.12.241 0:0:0:0:0:ffff:4805:cf1
72.5.12.242 0:0:0:0:0:ffff:4805:cf2
72.5.12.243 0:0:0:0:0:ffff:4805:cf3
72.5.12.244 0:0:0:0:0:ffff:4805:cf4
72.5.12.245 0:0:0:0:0:ffff:4805:cf5
72.5.12.246 0:0:0:0:0:ffff:4805:cf6
72.5.12.247 0:0:0:0:0:ffff:4805:cf7
72.5.12.248 0:0:0:0:0:ffff:4805:cf8
72.5.12.249 0:0:0:0:0:ffff:4805:cf9
72.5.12.250 0:0:0:0:0:ffff:4805:cfa
72.5.12.251 0:0:0:0:0:ffff:4805:cfb
72.5.12.252 0:0:0:0:0:ffff:4805:cfc
72.5.12.253 0:0:0:0:0:ffff:4805:cfd
72.5.12.254 0:0:0:0:0:ffff:4805:cfe
72.5.12.255 0:0:0:0:0:ffff:4805:cff


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.