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
78.31.203.1 0:0:0:0:0:ffff:4e1f:cb01
78.31.203.2 0:0:0:0:0:ffff:4e1f:cb02
78.31.203.3 0:0:0:0:0:ffff:4e1f:cb03
78.31.203.4 0:0:0:0:0:ffff:4e1f:cb04
78.31.203.5 0:0:0:0:0:ffff:4e1f:cb05
78.31.203.6 0:0:0:0:0:ffff:4e1f:cb06
78.31.203.7 0:0:0:0:0:ffff:4e1f:cb07
78.31.203.8 0:0:0:0:0:ffff:4e1f:cb08
78.31.203.9 0:0:0:0:0:ffff:4e1f:cb09
78.31.203.10 0:0:0:0:0:ffff:4e1f:cb0a
78.31.203.11 0:0:0:0:0:ffff:4e1f:cb0b
78.31.203.12 0:0:0:0:0:ffff:4e1f:cb0c
78.31.203.13 0:0:0:0:0:ffff:4e1f:cb0d
78.31.203.14 0:0:0:0:0:ffff:4e1f:cb0e
78.31.203.15 0:0:0:0:0:ffff:4e1f:cb0f
78.31.203.16 0:0:0:0:0:ffff:4e1f:cb10
78.31.203.17 0:0:0:0:0:ffff:4e1f:cb11
78.31.203.18 0:0:0:0:0:ffff:4e1f:cb12
78.31.203.19 0:0:0:0:0:ffff:4e1f:cb13
78.31.203.20 0:0:0:0:0:ffff:4e1f:cb14
78.31.203.21 0:0:0:0:0:ffff:4e1f:cb15
78.31.203.22 0:0:0:0:0:ffff:4e1f:cb16
78.31.203.23 0:0:0:0:0:ffff:4e1f:cb17
78.31.203.24 0:0:0:0:0:ffff:4e1f:cb18
78.31.203.25 0:0:0:0:0:ffff:4e1f:cb19
78.31.203.26 0:0:0:0:0:ffff:4e1f:cb1a
78.31.203.27 0:0:0:0:0:ffff:4e1f:cb1b
78.31.203.28 0:0:0:0:0:ffff:4e1f:cb1c
78.31.203.29 0:0:0:0:0:ffff:4e1f:cb1d
78.31.203.30 0:0:0:0:0:ffff:4e1f:cb1e
78.31.203.31 0:0:0:0:0:ffff:4e1f:cb1f
78.31.203.32 0:0:0:0:0:ffff:4e1f:cb20
78.31.203.33 0:0:0:0:0:ffff:4e1f:cb21
78.31.203.34 0:0:0:0:0:ffff:4e1f:cb22
78.31.203.35 0:0:0:0:0:ffff:4e1f:cb23
78.31.203.36 0:0:0:0:0:ffff:4e1f:cb24
78.31.203.37 0:0:0:0:0:ffff:4e1f:cb25
78.31.203.38 0:0:0:0:0:ffff:4e1f:cb26
78.31.203.39 0:0:0:0:0:ffff:4e1f:cb27
78.31.203.40 0:0:0:0:0:ffff:4e1f:cb28
78.31.203.41 0:0:0:0:0:ffff:4e1f:cb29
78.31.203.42 0:0:0:0:0:ffff:4e1f:cb2a
78.31.203.43 0:0:0:0:0:ffff:4e1f:cb2b
78.31.203.44 0:0:0:0:0:ffff:4e1f:cb2c
78.31.203.45 0:0:0:0:0:ffff:4e1f:cb2d
78.31.203.46 0:0:0:0:0:ffff:4e1f:cb2e
78.31.203.47 0:0:0:0:0:ffff:4e1f:cb2f
78.31.203.48 0:0:0:0:0:ffff:4e1f:cb30
78.31.203.49 0:0:0:0:0:ffff:4e1f:cb31
78.31.203.50 0:0:0:0:0:ffff:4e1f:cb32
78.31.203.51 0:0:0:0:0:ffff:4e1f:cb33
78.31.203.52 0:0:0:0:0:ffff:4e1f:cb34
78.31.203.53 0:0:0:0:0:ffff:4e1f:cb35
78.31.203.54 0:0:0:0:0:ffff:4e1f:cb36
78.31.203.55 0:0:0:0:0:ffff:4e1f:cb37
78.31.203.56 0:0:0:0:0:ffff:4e1f:cb38
78.31.203.57 0:0:0:0:0:ffff:4e1f:cb39
78.31.203.58 0:0:0:0:0:ffff:4e1f:cb3a
78.31.203.59 0:0:0:0:0:ffff:4e1f:cb3b
78.31.203.60 0:0:0:0:0:ffff:4e1f:cb3c


78.31.203.61 0:0:0:0:0:ffff:4e1f:cb3d
78.31.203.62 0:0:0:0:0:ffff:4e1f:cb3e
78.31.203.63 0:0:0:0:0:ffff:4e1f:cb3f
78.31.203.64 0:0:0:0:0:ffff:4e1f:cb40
78.31.203.65 0:0:0:0:0:ffff:4e1f:cb41
78.31.203.66 0:0:0:0:0:ffff:4e1f:cb42
78.31.203.67 0:0:0:0:0:ffff:4e1f:cb43
78.31.203.68 0:0:0:0:0:ffff:4e1f:cb44
78.31.203.69 0:0:0:0:0:ffff:4e1f:cb45
78.31.203.70 0:0:0:0:0:ffff:4e1f:cb46
78.31.203.71 0:0:0:0:0:ffff:4e1f:cb47
78.31.203.72 0:0:0:0:0:ffff:4e1f:cb48
78.31.203.73 0:0:0:0:0:ffff:4e1f:cb49
78.31.203.74 0:0:0:0:0:ffff:4e1f:cb4a
78.31.203.75 0:0:0:0:0:ffff:4e1f:cb4b
78.31.203.76 0:0:0:0:0:ffff:4e1f:cb4c
78.31.203.77 0:0:0:0:0:ffff:4e1f:cb4d
78.31.203.78 0:0:0:0:0:ffff:4e1f:cb4e
78.31.203.79 0:0:0:0:0:ffff:4e1f:cb4f
78.31.203.80 0:0:0:0:0:ffff:4e1f:cb50
78.31.203.81 0:0:0:0:0:ffff:4e1f:cb51
78.31.203.82 0:0:0:0:0:ffff:4e1f:cb52
78.31.203.83 0:0:0:0:0:ffff:4e1f:cb53
78.31.203.84 0:0:0:0:0:ffff:4e1f:cb54
78.31.203.85 0:0:0:0:0:ffff:4e1f:cb55
78.31.203.86 0:0:0:0:0:ffff:4e1f:cb56
78.31.203.87 0:0:0:0:0:ffff:4e1f:cb57
78.31.203.88 0:0:0:0:0:ffff:4e1f:cb58
78.31.203.89 0:0:0:0:0:ffff:4e1f:cb59
78.31.203.90 0:0:0:0:0:ffff:4e1f:cb5a
78.31.203.91 0:0:0:0:0:ffff:4e1f:cb5b
78.31.203.92 0:0:0:0:0:ffff:4e1f:cb5c
78.31.203.93 0:0:0:0:0:ffff:4e1f:cb5d
78.31.203.94 0:0:0:0:0:ffff:4e1f:cb5e
78.31.203.95 0:0:0:0:0:ffff:4e1f:cb5f
78.31.203.96 0:0:0:0:0:ffff:4e1f:cb60
78.31.203.97 0:0:0:0:0:ffff:4e1f:cb61
78.31.203.98 0:0:0:0:0:ffff:4e1f:cb62
78.31.203.99 0:0:0:0:0:ffff:4e1f:cb63
78.31.203.100 0:0:0:0:0:ffff:4e1f:cb64
78.31.203.101 0:0:0:0:0:ffff:4e1f:cb65
78.31.203.102 0:0:0:0:0:ffff:4e1f:cb66
78.31.203.103 0:0:0:0:0:ffff:4e1f:cb67
78.31.203.104 0:0:0:0:0:ffff:4e1f:cb68
78.31.203.105 0:0:0:0:0:ffff:4e1f:cb69
78.31.203.106 0:0:0:0:0:ffff:4e1f:cb6a
78.31.203.107 0:0:0:0:0:ffff:4e1f:cb6b
78.31.203.108 0:0:0:0:0:ffff:4e1f:cb6c
78.31.203.109 0:0:0:0:0:ffff:4e1f:cb6d
78.31.203.110 0:0:0:0:0:ffff:4e1f:cb6e
78.31.203.111 0:0:0:0:0:ffff:4e1f:cb6f
78.31.203.112 0:0:0:0:0:ffff:4e1f:cb70
78.31.203.113 0:0:0:0:0:ffff:4e1f:cb71
78.31.203.114 0:0:0:0:0:ffff:4e1f:cb72
78.31.203.115 0:0:0:0:0:ffff:4e1f:cb73
78.31.203.116 0:0:0:0:0:ffff:4e1f:cb74
78.31.203.117 0:0:0:0:0:ffff:4e1f:cb75
78.31.203.118 0:0:0:0:0:ffff:4e1f:cb76
78.31.203.119 0:0:0:0:0:ffff:4e1f:cb77
78.31.203.120 0:0:0:0:0:ffff:4e1f:cb78


78.31.203.121 0:0:0:0:0:ffff:4e1f:cb79
78.31.203.122 0:0:0:0:0:ffff:4e1f:cb7a
78.31.203.123 0:0:0:0:0:ffff:4e1f:cb7b
78.31.203.124 0:0:0:0:0:ffff:4e1f:cb7c
78.31.203.125 0:0:0:0:0:ffff:4e1f:cb7d
78.31.203.126 0:0:0:0:0:ffff:4e1f:cb7e
78.31.203.127 0:0:0:0:0:ffff:4e1f:cb7f
78.31.203.128 0:0:0:0:0:ffff:4e1f:cb80
78.31.203.129 0:0:0:0:0:ffff:4e1f:cb81
78.31.203.130 0:0:0:0:0:ffff:4e1f:cb82
78.31.203.131 0:0:0:0:0:ffff:4e1f:cb83
78.31.203.132 0:0:0:0:0:ffff:4e1f:cb84
78.31.203.133 0:0:0:0:0:ffff:4e1f:cb85
78.31.203.134 0:0:0:0:0:ffff:4e1f:cb86
78.31.203.135 0:0:0:0:0:ffff:4e1f:cb87
78.31.203.136 0:0:0:0:0:ffff:4e1f:cb88
78.31.203.137 0:0:0:0:0:ffff:4e1f:cb89
78.31.203.138 0:0:0:0:0:ffff:4e1f:cb8a
78.31.203.139 0:0:0:0:0:ffff:4e1f:cb8b
78.31.203.140 0:0:0:0:0:ffff:4e1f:cb8c
78.31.203.141 0:0:0:0:0:ffff:4e1f:cb8d
78.31.203.142 0:0:0:0:0:ffff:4e1f:cb8e
78.31.203.143 0:0:0:0:0:ffff:4e1f:cb8f
78.31.203.144 0:0:0:0:0:ffff:4e1f:cb90
78.31.203.145 0:0:0:0:0:ffff:4e1f:cb91
78.31.203.146 0:0:0:0:0:ffff:4e1f:cb92
78.31.203.147 0:0:0:0:0:ffff:4e1f:cb93
78.31.203.148 0:0:0:0:0:ffff:4e1f:cb94
78.31.203.149 0:0:0:0:0:ffff:4e1f:cb95
78.31.203.150 0:0:0:0:0:ffff:4e1f:cb96
78.31.203.151 0:0:0:0:0:ffff:4e1f:cb97
78.31.203.152 0:0:0:0:0:ffff:4e1f:cb98
78.31.203.153 0:0:0:0:0:ffff:4e1f:cb99
78.31.203.154 0:0:0:0:0:ffff:4e1f:cb9a
78.31.203.155 0:0:0:0:0:ffff:4e1f:cb9b
78.31.203.156 0:0:0:0:0:ffff:4e1f:cb9c
78.31.203.157 0:0:0:0:0:ffff:4e1f:cb9d
78.31.203.158 0:0:0:0:0:ffff:4e1f:cb9e
78.31.203.159 0:0:0:0:0:ffff:4e1f:cb9f
78.31.203.160 0:0:0:0:0:ffff:4e1f:cba0
78.31.203.161 0:0:0:0:0:ffff:4e1f:cba1
78.31.203.162 0:0:0:0:0:ffff:4e1f:cba2
78.31.203.163 0:0:0:0:0:ffff:4e1f:cba3
78.31.203.164 0:0:0:0:0:ffff:4e1f:cba4
78.31.203.165 0:0:0:0:0:ffff:4e1f:cba5
78.31.203.166 0:0:0:0:0:ffff:4e1f:cba6
78.31.203.167 0:0:0:0:0:ffff:4e1f:cba7
78.31.203.168 0:0:0:0:0:ffff:4e1f:cba8
78.31.203.169 0:0:0:0:0:ffff:4e1f:cba9
78.31.203.170 0:0:0:0:0:ffff:4e1f:cbaa
78.31.203.171 0:0:0:0:0:ffff:4e1f:cbab
78.31.203.172 0:0:0:0:0:ffff:4e1f:cbac
78.31.203.173 0:0:0:0:0:ffff:4e1f:cbad
78.31.203.174 0:0:0:0:0:ffff:4e1f:cbae
78.31.203.175 0:0:0:0:0:ffff:4e1f:cbaf
78.31.203.176 0:0:0:0:0:ffff:4e1f:cbb0
78.31.203.177 0:0:0:0:0:ffff:4e1f:cbb1
78.31.203.178 0:0:0:0:0:ffff:4e1f:cbb2
78.31.203.179 0:0:0:0:0:ffff:4e1f:cbb3
78.31.203.180 0:0:0:0:0:ffff:4e1f:cbb4


78.31.203.181 0:0:0:0:0:ffff:4e1f:cbb5
78.31.203.182 0:0:0:0:0:ffff:4e1f:cbb6
78.31.203.183 0:0:0:0:0:ffff:4e1f:cbb7
78.31.203.184 0:0:0:0:0:ffff:4e1f:cbb8
78.31.203.185 0:0:0:0:0:ffff:4e1f:cbb9
78.31.203.186 0:0:0:0:0:ffff:4e1f:cbba
78.31.203.187 0:0:0:0:0:ffff:4e1f:cbbb
78.31.203.188 0:0:0:0:0:ffff:4e1f:cbbc
78.31.203.189 0:0:0:0:0:ffff:4e1f:cbbd
78.31.203.190 0:0:0:0:0:ffff:4e1f:cbbe
78.31.203.191 0:0:0:0:0:ffff:4e1f:cbbf
78.31.203.192 0:0:0:0:0:ffff:4e1f:cbc0
78.31.203.193 0:0:0:0:0:ffff:4e1f:cbc1
78.31.203.194 0:0:0:0:0:ffff:4e1f:cbc2
78.31.203.195 0:0:0:0:0:ffff:4e1f:cbc3
78.31.203.196 0:0:0:0:0:ffff:4e1f:cbc4
78.31.203.197 0:0:0:0:0:ffff:4e1f:cbc5
78.31.203.198 0:0:0:0:0:ffff:4e1f:cbc6
78.31.203.199 0:0:0:0:0:ffff:4e1f:cbc7
78.31.203.200 0:0:0:0:0:ffff:4e1f:cbc8
78.31.203.201 0:0:0:0:0:ffff:4e1f:cbc9
78.31.203.202 0:0:0:0:0:ffff:4e1f:cbca
78.31.203.203 0:0:0:0:0:ffff:4e1f:cbcb
78.31.203.204 0:0:0:0:0:ffff:4e1f:cbcc
78.31.203.205 0:0:0:0:0:ffff:4e1f:cbcd
78.31.203.206 0:0:0:0:0:ffff:4e1f:cbce
78.31.203.207 0:0:0:0:0:ffff:4e1f:cbcf
78.31.203.208 0:0:0:0:0:ffff:4e1f:cbd0
78.31.203.209 0:0:0:0:0:ffff:4e1f:cbd1
78.31.203.210 0:0:0:0:0:ffff:4e1f:cbd2
78.31.203.211 0:0:0:0:0:ffff:4e1f:cbd3
78.31.203.212 0:0:0:0:0:ffff:4e1f:cbd4
78.31.203.213 0:0:0:0:0:ffff:4e1f:cbd5
78.31.203.214 0:0:0:0:0:ffff:4e1f:cbd6
78.31.203.215 0:0:0:0:0:ffff:4e1f:cbd7
78.31.203.216 0:0:0:0:0:ffff:4e1f:cbd8
78.31.203.217 0:0:0:0:0:ffff:4e1f:cbd9
78.31.203.218 0:0:0:0:0:ffff:4e1f:cbda
78.31.203.219 0:0:0:0:0:ffff:4e1f:cbdb
78.31.203.220 0:0:0:0:0:ffff:4e1f:cbdc
78.31.203.221 0:0:0:0:0:ffff:4e1f:cbdd
78.31.203.222 0:0:0:0:0:ffff:4e1f:cbde
78.31.203.223 0:0:0:0:0:ffff:4e1f:cbdf
78.31.203.224 0:0:0:0:0:ffff:4e1f:cbe0
78.31.203.225 0:0:0:0:0:ffff:4e1f:cbe1
78.31.203.226 0:0:0:0:0:ffff:4e1f:cbe2
78.31.203.227 0:0:0:0:0:ffff:4e1f:cbe3
78.31.203.228 0:0:0:0:0:ffff:4e1f:cbe4
78.31.203.229 0:0:0:0:0:ffff:4e1f:cbe5
78.31.203.230 0:0:0:0:0:ffff:4e1f:cbe6
78.31.203.231 0:0:0:0:0:ffff:4e1f:cbe7
78.31.203.232 0:0:0:0:0:ffff:4e1f:cbe8
78.31.203.233 0:0:0:0:0:ffff:4e1f:cbe9
78.31.203.234 0:0:0:0:0:ffff:4e1f:cbea
78.31.203.235 0:0:0:0:0:ffff:4e1f:cbeb
78.31.203.236 0:0:0:0:0:ffff:4e1f:cbec
78.31.203.237 0:0:0:0:0:ffff:4e1f:cbed
78.31.203.238 0:0:0:0:0:ffff:4e1f:cbee
78.31.203.239 0:0:0:0:0:ffff:4e1f:cbef
78.31.203.240 0:0:0:0:0:ffff:4e1f:cbf0
78.31.203.241 0:0:0:0:0:ffff:4e1f:cbf1
78.31.203.242 0:0:0:0:0:ffff:4e1f:cbf2
78.31.203.243 0:0:0:0:0:ffff:4e1f:cbf3
78.31.203.244 0:0:0:0:0:ffff:4e1f:cbf4
78.31.203.245 0:0:0:0:0:ffff:4e1f:cbf5
78.31.203.246 0:0:0:0:0:ffff:4e1f:cbf6
78.31.203.247 0:0:0:0:0:ffff:4e1f:cbf7
78.31.203.248 0:0:0:0:0:ffff:4e1f:cbf8
78.31.203.249 0:0:0:0:0:ffff:4e1f:cbf9
78.31.203.250 0:0:0:0:0:ffff:4e1f:cbfa
78.31.203.251 0:0:0:0:0:ffff:4e1f:cbfb
78.31.203.252 0:0:0:0:0:ffff:4e1f:cbfc
78.31.203.253 0:0:0:0:0:ffff:4e1f:cbfd
78.31.203.254 0:0:0:0:0:ffff:4e1f:cbfe
78.31.203.255 0:0:0:0:0:ffff:4e1f:cbff


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.