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
72.255.255.1 0:0:0:0:0:ffff:48ff:ff01
72.255.255.2 0:0:0:0:0:ffff:48ff:ff02
72.255.255.3 0:0:0:0:0:ffff:48ff:ff03
72.255.255.4 0:0:0:0:0:ffff:48ff:ff04
72.255.255.5 0:0:0:0:0:ffff:48ff:ff05
72.255.255.6 0:0:0:0:0:ffff:48ff:ff06
72.255.255.7 0:0:0:0:0:ffff:48ff:ff07
72.255.255.8 0:0:0:0:0:ffff:48ff:ff08
72.255.255.9 0:0:0:0:0:ffff:48ff:ff09
72.255.255.10 0:0:0:0:0:ffff:48ff:ff0a
72.255.255.11 0:0:0:0:0:ffff:48ff:ff0b
72.255.255.12 0:0:0:0:0:ffff:48ff:ff0c
72.255.255.13 0:0:0:0:0:ffff:48ff:ff0d
72.255.255.14 0:0:0:0:0:ffff:48ff:ff0e
72.255.255.15 0:0:0:0:0:ffff:48ff:ff0f
72.255.255.16 0:0:0:0:0:ffff:48ff:ff10
72.255.255.17 0:0:0:0:0:ffff:48ff:ff11
72.255.255.18 0:0:0:0:0:ffff:48ff:ff12
72.255.255.19 0:0:0:0:0:ffff:48ff:ff13
72.255.255.20 0:0:0:0:0:ffff:48ff:ff14
72.255.255.21 0:0:0:0:0:ffff:48ff:ff15
72.255.255.22 0:0:0:0:0:ffff:48ff:ff16
72.255.255.23 0:0:0:0:0:ffff:48ff:ff17
72.255.255.24 0:0:0:0:0:ffff:48ff:ff18
72.255.255.25 0:0:0:0:0:ffff:48ff:ff19
72.255.255.26 0:0:0:0:0:ffff:48ff:ff1a
72.255.255.27 0:0:0:0:0:ffff:48ff:ff1b
72.255.255.28 0:0:0:0:0:ffff:48ff:ff1c
72.255.255.29 0:0:0:0:0:ffff:48ff:ff1d
72.255.255.30 0:0:0:0:0:ffff:48ff:ff1e
72.255.255.31 0:0:0:0:0:ffff:48ff:ff1f
72.255.255.32 0:0:0:0:0:ffff:48ff:ff20
72.255.255.33 0:0:0:0:0:ffff:48ff:ff21
72.255.255.34 0:0:0:0:0:ffff:48ff:ff22
72.255.255.35 0:0:0:0:0:ffff:48ff:ff23
72.255.255.36 0:0:0:0:0:ffff:48ff:ff24
72.255.255.37 0:0:0:0:0:ffff:48ff:ff25
72.255.255.38 0:0:0:0:0:ffff:48ff:ff26
72.255.255.39 0:0:0:0:0:ffff:48ff:ff27
72.255.255.40 0:0:0:0:0:ffff:48ff:ff28
72.255.255.41 0:0:0:0:0:ffff:48ff:ff29
72.255.255.42 0:0:0:0:0:ffff:48ff:ff2a
72.255.255.43 0:0:0:0:0:ffff:48ff:ff2b
72.255.255.44 0:0:0:0:0:ffff:48ff:ff2c
72.255.255.45 0:0:0:0:0:ffff:48ff:ff2d
72.255.255.46 0:0:0:0:0:ffff:48ff:ff2e
72.255.255.47 0:0:0:0:0:ffff:48ff:ff2f
72.255.255.48 0:0:0:0:0:ffff:48ff:ff30
72.255.255.49 0:0:0:0:0:ffff:48ff:ff31
72.255.255.50 0:0:0:0:0:ffff:48ff:ff32
72.255.255.51 0:0:0:0:0:ffff:48ff:ff33
72.255.255.52 0:0:0:0:0:ffff:48ff:ff34
72.255.255.53 0:0:0:0:0:ffff:48ff:ff35
72.255.255.54 0:0:0:0:0:ffff:48ff:ff36
72.255.255.55 0:0:0:0:0:ffff:48ff:ff37
72.255.255.56 0:0:0:0:0:ffff:48ff:ff38
72.255.255.57 0:0:0:0:0:ffff:48ff:ff39
72.255.255.58 0:0:0:0:0:ffff:48ff:ff3a
72.255.255.59 0:0:0:0:0:ffff:48ff:ff3b
72.255.255.60 0:0:0:0:0:ffff:48ff:ff3c


72.255.255.61 0:0:0:0:0:ffff:48ff:ff3d
72.255.255.62 0:0:0:0:0:ffff:48ff:ff3e
72.255.255.63 0:0:0:0:0:ffff:48ff:ff3f
72.255.255.64 0:0:0:0:0:ffff:48ff:ff40
72.255.255.65 0:0:0:0:0:ffff:48ff:ff41
72.255.255.66 0:0:0:0:0:ffff:48ff:ff42
72.255.255.67 0:0:0:0:0:ffff:48ff:ff43
72.255.255.68 0:0:0:0:0:ffff:48ff:ff44
72.255.255.69 0:0:0:0:0:ffff:48ff:ff45
72.255.255.70 0:0:0:0:0:ffff:48ff:ff46
72.255.255.71 0:0:0:0:0:ffff:48ff:ff47
72.255.255.72 0:0:0:0:0:ffff:48ff:ff48
72.255.255.73 0:0:0:0:0:ffff:48ff:ff49
72.255.255.74 0:0:0:0:0:ffff:48ff:ff4a
72.255.255.75 0:0:0:0:0:ffff:48ff:ff4b
72.255.255.76 0:0:0:0:0:ffff:48ff:ff4c
72.255.255.77 0:0:0:0:0:ffff:48ff:ff4d
72.255.255.78 0:0:0:0:0:ffff:48ff:ff4e
72.255.255.79 0:0:0:0:0:ffff:48ff:ff4f
72.255.255.80 0:0:0:0:0:ffff:48ff:ff50
72.255.255.81 0:0:0:0:0:ffff:48ff:ff51
72.255.255.82 0:0:0:0:0:ffff:48ff:ff52
72.255.255.83 0:0:0:0:0:ffff:48ff:ff53
72.255.255.84 0:0:0:0:0:ffff:48ff:ff54
72.255.255.85 0:0:0:0:0:ffff:48ff:ff55
72.255.255.86 0:0:0:0:0:ffff:48ff:ff56
72.255.255.87 0:0:0:0:0:ffff:48ff:ff57
72.255.255.88 0:0:0:0:0:ffff:48ff:ff58
72.255.255.89 0:0:0:0:0:ffff:48ff:ff59
72.255.255.90 0:0:0:0:0:ffff:48ff:ff5a
72.255.255.91 0:0:0:0:0:ffff:48ff:ff5b
72.255.255.92 0:0:0:0:0:ffff:48ff:ff5c
72.255.255.93 0:0:0:0:0:ffff:48ff:ff5d
72.255.255.94 0:0:0:0:0:ffff:48ff:ff5e
72.255.255.95 0:0:0:0:0:ffff:48ff:ff5f
72.255.255.96 0:0:0:0:0:ffff:48ff:ff60
72.255.255.97 0:0:0:0:0:ffff:48ff:ff61
72.255.255.98 0:0:0:0:0:ffff:48ff:ff62
72.255.255.99 0:0:0:0:0:ffff:48ff:ff63
72.255.255.100 0:0:0:0:0:ffff:48ff:ff64
72.255.255.101 0:0:0:0:0:ffff:48ff:ff65
72.255.255.102 0:0:0:0:0:ffff:48ff:ff66
72.255.255.103 0:0:0:0:0:ffff:48ff:ff67
72.255.255.104 0:0:0:0:0:ffff:48ff:ff68
72.255.255.105 0:0:0:0:0:ffff:48ff:ff69
72.255.255.106 0:0:0:0:0:ffff:48ff:ff6a
72.255.255.107 0:0:0:0:0:ffff:48ff:ff6b
72.255.255.108 0:0:0:0:0:ffff:48ff:ff6c
72.255.255.109 0:0:0:0:0:ffff:48ff:ff6d
72.255.255.110 0:0:0:0:0:ffff:48ff:ff6e
72.255.255.111 0:0:0:0:0:ffff:48ff:ff6f
72.255.255.112 0:0:0:0:0:ffff:48ff:ff70
72.255.255.113 0:0:0:0:0:ffff:48ff:ff71
72.255.255.114 0:0:0:0:0:ffff:48ff:ff72
72.255.255.115 0:0:0:0:0:ffff:48ff:ff73
72.255.255.116 0:0:0:0:0:ffff:48ff:ff74
72.255.255.117 0:0:0:0:0:ffff:48ff:ff75
72.255.255.118 0:0:0:0:0:ffff:48ff:ff76
72.255.255.119 0:0:0:0:0:ffff:48ff:ff77
72.255.255.120 0:0:0:0:0:ffff:48ff:ff78


72.255.255.121 0:0:0:0:0:ffff:48ff:ff79
72.255.255.122 0:0:0:0:0:ffff:48ff:ff7a
72.255.255.123 0:0:0:0:0:ffff:48ff:ff7b
72.255.255.124 0:0:0:0:0:ffff:48ff:ff7c
72.255.255.125 0:0:0:0:0:ffff:48ff:ff7d
72.255.255.126 0:0:0:0:0:ffff:48ff:ff7e
72.255.255.127 0:0:0:0:0:ffff:48ff:ff7f
72.255.255.128 0:0:0:0:0:ffff:48ff:ff80
72.255.255.129 0:0:0:0:0:ffff:48ff:ff81
72.255.255.130 0:0:0:0:0:ffff:48ff:ff82
72.255.255.131 0:0:0:0:0:ffff:48ff:ff83
72.255.255.132 0:0:0:0:0:ffff:48ff:ff84
72.255.255.133 0:0:0:0:0:ffff:48ff:ff85
72.255.255.134 0:0:0:0:0:ffff:48ff:ff86
72.255.255.135 0:0:0:0:0:ffff:48ff:ff87
72.255.255.136 0:0:0:0:0:ffff:48ff:ff88
72.255.255.137 0:0:0:0:0:ffff:48ff:ff89
72.255.255.138 0:0:0:0:0:ffff:48ff:ff8a
72.255.255.139 0:0:0:0:0:ffff:48ff:ff8b
72.255.255.140 0:0:0:0:0:ffff:48ff:ff8c
72.255.255.141 0:0:0:0:0:ffff:48ff:ff8d
72.255.255.142 0:0:0:0:0:ffff:48ff:ff8e
72.255.255.143 0:0:0:0:0:ffff:48ff:ff8f
72.255.255.144 0:0:0:0:0:ffff:48ff:ff90
72.255.255.145 0:0:0:0:0:ffff:48ff:ff91
72.255.255.146 0:0:0:0:0:ffff:48ff:ff92
72.255.255.147 0:0:0:0:0:ffff:48ff:ff93
72.255.255.148 0:0:0:0:0:ffff:48ff:ff94
72.255.255.149 0:0:0:0:0:ffff:48ff:ff95
72.255.255.150 0:0:0:0:0:ffff:48ff:ff96
72.255.255.151 0:0:0:0:0:ffff:48ff:ff97
72.255.255.152 0:0:0:0:0:ffff:48ff:ff98
72.255.255.153 0:0:0:0:0:ffff:48ff:ff99
72.255.255.154 0:0:0:0:0:ffff:48ff:ff9a
72.255.255.155 0:0:0:0:0:ffff:48ff:ff9b
72.255.255.156 0:0:0:0:0:ffff:48ff:ff9c
72.255.255.157 0:0:0:0:0:ffff:48ff:ff9d
72.255.255.158 0:0:0:0:0:ffff:48ff:ff9e
72.255.255.159 0:0:0:0:0:ffff:48ff:ff9f
72.255.255.160 0:0:0:0:0:ffff:48ff:ffa0
72.255.255.161 0:0:0:0:0:ffff:48ff:ffa1
72.255.255.162 0:0:0:0:0:ffff:48ff:ffa2
72.255.255.163 0:0:0:0:0:ffff:48ff:ffa3
72.255.255.164 0:0:0:0:0:ffff:48ff:ffa4
72.255.255.165 0:0:0:0:0:ffff:48ff:ffa5
72.255.255.166 0:0:0:0:0:ffff:48ff:ffa6
72.255.255.167 0:0:0:0:0:ffff:48ff:ffa7
72.255.255.168 0:0:0:0:0:ffff:48ff:ffa8
72.255.255.169 0:0:0:0:0:ffff:48ff:ffa9
72.255.255.170 0:0:0:0:0:ffff:48ff:ffaa
72.255.255.171 0:0:0:0:0:ffff:48ff:ffab
72.255.255.172 0:0:0:0:0:ffff:48ff:ffac
72.255.255.173 0:0:0:0:0:ffff:48ff:ffad
72.255.255.174 0:0:0:0:0:ffff:48ff:ffae
72.255.255.175 0:0:0:0:0:ffff:48ff:ffaf
72.255.255.176 0:0:0:0:0:ffff:48ff:ffb0
72.255.255.177 0:0:0:0:0:ffff:48ff:ffb1
72.255.255.178 0:0:0:0:0:ffff:48ff:ffb2
72.255.255.179 0:0:0:0:0:ffff:48ff:ffb3
72.255.255.180 0:0:0:0:0:ffff:48ff:ffb4


72.255.255.181 0:0:0:0:0:ffff:48ff:ffb5
72.255.255.182 0:0:0:0:0:ffff:48ff:ffb6
72.255.255.183 0:0:0:0:0:ffff:48ff:ffb7
72.255.255.184 0:0:0:0:0:ffff:48ff:ffb8
72.255.255.185 0:0:0:0:0:ffff:48ff:ffb9
72.255.255.186 0:0:0:0:0:ffff:48ff:ffba
72.255.255.187 0:0:0:0:0:ffff:48ff:ffbb
72.255.255.188 0:0:0:0:0:ffff:48ff:ffbc
72.255.255.189 0:0:0:0:0:ffff:48ff:ffbd
72.255.255.190 0:0:0:0:0:ffff:48ff:ffbe
72.255.255.191 0:0:0:0:0:ffff:48ff:ffbf
72.255.255.192 0:0:0:0:0:ffff:48ff:ffc0
72.255.255.193 0:0:0:0:0:ffff:48ff:ffc1
72.255.255.194 0:0:0:0:0:ffff:48ff:ffc2
72.255.255.195 0:0:0:0:0:ffff:48ff:ffc3
72.255.255.196 0:0:0:0:0:ffff:48ff:ffc4
72.255.255.197 0:0:0:0:0:ffff:48ff:ffc5
72.255.255.198 0:0:0:0:0:ffff:48ff:ffc6
72.255.255.199 0:0:0:0:0:ffff:48ff:ffc7
72.255.255.200 0:0:0:0:0:ffff:48ff:ffc8
72.255.255.201 0:0:0:0:0:ffff:48ff:ffc9
72.255.255.202 0:0:0:0:0:ffff:48ff:ffca
72.255.255.203 0:0:0:0:0:ffff:48ff:ffcb
72.255.255.204 0:0:0:0:0:ffff:48ff:ffcc
72.255.255.205 0:0:0:0:0:ffff:48ff:ffcd
72.255.255.206 0:0:0:0:0:ffff:48ff:ffce
72.255.255.207 0:0:0:0:0:ffff:48ff:ffcf
72.255.255.208 0:0:0:0:0:ffff:48ff:ffd0
72.255.255.209 0:0:0:0:0:ffff:48ff:ffd1
72.255.255.210 0:0:0:0:0:ffff:48ff:ffd2
72.255.255.211 0:0:0:0:0:ffff:48ff:ffd3
72.255.255.212 0:0:0:0:0:ffff:48ff:ffd4
72.255.255.213 0:0:0:0:0:ffff:48ff:ffd5
72.255.255.214 0:0:0:0:0:ffff:48ff:ffd6
72.255.255.215 0:0:0:0:0:ffff:48ff:ffd7
72.255.255.216 0:0:0:0:0:ffff:48ff:ffd8
72.255.255.217 0:0:0:0:0:ffff:48ff:ffd9
72.255.255.218 0:0:0:0:0:ffff:48ff:ffda
72.255.255.219 0:0:0:0:0:ffff:48ff:ffdb
72.255.255.220 0:0:0:0:0:ffff:48ff:ffdc
72.255.255.221 0:0:0:0:0:ffff:48ff:ffdd
72.255.255.222 0:0:0:0:0:ffff:48ff:ffde
72.255.255.223 0:0:0:0:0:ffff:48ff:ffdf
72.255.255.224 0:0:0:0:0:ffff:48ff:ffe0
72.255.255.225 0:0:0:0:0:ffff:48ff:ffe1
72.255.255.226 0:0:0:0:0:ffff:48ff:ffe2
72.255.255.227 0:0:0:0:0:ffff:48ff:ffe3
72.255.255.228 0:0:0:0:0:ffff:48ff:ffe4
72.255.255.229 0:0:0:0:0:ffff:48ff:ffe5
72.255.255.230 0:0:0:0:0:ffff:48ff:ffe6
72.255.255.231 0:0:0:0:0:ffff:48ff:ffe7
72.255.255.232 0:0:0:0:0:ffff:48ff:ffe8
72.255.255.233 0:0:0:0:0:ffff:48ff:ffe9
72.255.255.234 0:0:0:0:0:ffff:48ff:ffea
72.255.255.235 0:0:0:0:0:ffff:48ff:ffeb
72.255.255.236 0:0:0:0:0:ffff:48ff:ffec
72.255.255.237 0:0:0:0:0:ffff:48ff:ffed
72.255.255.238 0:0:0:0:0:ffff:48ff:ffee
72.255.255.239 0:0:0:0:0:ffff:48ff:ffef
72.255.255.240 0:0:0:0:0:ffff:48ff:fff0
72.255.255.241 0:0:0:0:0:ffff:48ff:fff1
72.255.255.242 0:0:0:0:0:ffff:48ff:fff2
72.255.255.243 0:0:0:0:0:ffff:48ff:fff3
72.255.255.244 0:0:0:0:0:ffff:48ff:fff4
72.255.255.245 0:0:0:0:0:ffff:48ff:fff5
72.255.255.246 0:0:0:0:0:ffff:48ff:fff6
72.255.255.247 0:0:0:0:0:ffff:48ff:fff7
72.255.255.248 0:0:0:0:0:ffff:48ff:fff8
72.255.255.249 0:0:0:0:0:ffff:48ff:fff9
72.255.255.250 0:0:0:0:0:ffff:48ff:fffa
72.255.255.251 0:0:0:0:0:ffff:48ff:fffb
72.255.255.252 0:0:0:0:0:ffff:48ff:fffc
72.255.255.253 0:0:0:0:0:ffff:48ff:fffd
72.255.255.254 0:0:0:0:0:ffff:48ff:fffe
72.255.255.255 0:0:0:0:0:ffff:48ff:ffff


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.