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
78.123.208.1 0:0:0:0:0:ffff:4e7b:d001
78.123.208.2 0:0:0:0:0:ffff:4e7b:d002
78.123.208.3 0:0:0:0:0:ffff:4e7b:d003
78.123.208.4 0:0:0:0:0:ffff:4e7b:d004
78.123.208.5 0:0:0:0:0:ffff:4e7b:d005
78.123.208.6 0:0:0:0:0:ffff:4e7b:d006
78.123.208.7 0:0:0:0:0:ffff:4e7b:d007
78.123.208.8 0:0:0:0:0:ffff:4e7b:d008
78.123.208.9 0:0:0:0:0:ffff:4e7b:d009
78.123.208.10 0:0:0:0:0:ffff:4e7b:d00a
78.123.208.11 0:0:0:0:0:ffff:4e7b:d00b
78.123.208.12 0:0:0:0:0:ffff:4e7b:d00c
78.123.208.13 0:0:0:0:0:ffff:4e7b:d00d
78.123.208.14 0:0:0:0:0:ffff:4e7b:d00e
78.123.208.15 0:0:0:0:0:ffff:4e7b:d00f
78.123.208.16 0:0:0:0:0:ffff:4e7b:d010
78.123.208.17 0:0:0:0:0:ffff:4e7b:d011
78.123.208.18 0:0:0:0:0:ffff:4e7b:d012
78.123.208.19 0:0:0:0:0:ffff:4e7b:d013
78.123.208.20 0:0:0:0:0:ffff:4e7b:d014
78.123.208.21 0:0:0:0:0:ffff:4e7b:d015
78.123.208.22 0:0:0:0:0:ffff:4e7b:d016
78.123.208.23 0:0:0:0:0:ffff:4e7b:d017
78.123.208.24 0:0:0:0:0:ffff:4e7b:d018
78.123.208.25 0:0:0:0:0:ffff:4e7b:d019
78.123.208.26 0:0:0:0:0:ffff:4e7b:d01a
78.123.208.27 0:0:0:0:0:ffff:4e7b:d01b
78.123.208.28 0:0:0:0:0:ffff:4e7b:d01c
78.123.208.29 0:0:0:0:0:ffff:4e7b:d01d
78.123.208.30 0:0:0:0:0:ffff:4e7b:d01e
78.123.208.31 0:0:0:0:0:ffff:4e7b:d01f
78.123.208.32 0:0:0:0:0:ffff:4e7b:d020
78.123.208.33 0:0:0:0:0:ffff:4e7b:d021
78.123.208.34 0:0:0:0:0:ffff:4e7b:d022
78.123.208.35 0:0:0:0:0:ffff:4e7b:d023
78.123.208.36 0:0:0:0:0:ffff:4e7b:d024
78.123.208.37 0:0:0:0:0:ffff:4e7b:d025
78.123.208.38 0:0:0:0:0:ffff:4e7b:d026
78.123.208.39 0:0:0:0:0:ffff:4e7b:d027
78.123.208.40 0:0:0:0:0:ffff:4e7b:d028
78.123.208.41 0:0:0:0:0:ffff:4e7b:d029
78.123.208.42 0:0:0:0:0:ffff:4e7b:d02a
78.123.208.43 0:0:0:0:0:ffff:4e7b:d02b
78.123.208.44 0:0:0:0:0:ffff:4e7b:d02c
78.123.208.45 0:0:0:0:0:ffff:4e7b:d02d
78.123.208.46 0:0:0:0:0:ffff:4e7b:d02e
78.123.208.47 0:0:0:0:0:ffff:4e7b:d02f
78.123.208.48 0:0:0:0:0:ffff:4e7b:d030
78.123.208.49 0:0:0:0:0:ffff:4e7b:d031
78.123.208.50 0:0:0:0:0:ffff:4e7b:d032
78.123.208.51 0:0:0:0:0:ffff:4e7b:d033
78.123.208.52 0:0:0:0:0:ffff:4e7b:d034
78.123.208.53 0:0:0:0:0:ffff:4e7b:d035
78.123.208.54 0:0:0:0:0:ffff:4e7b:d036
78.123.208.55 0:0:0:0:0:ffff:4e7b:d037
78.123.208.56 0:0:0:0:0:ffff:4e7b:d038
78.123.208.57 0:0:0:0:0:ffff:4e7b:d039
78.123.208.58 0:0:0:0:0:ffff:4e7b:d03a
78.123.208.59 0:0:0:0:0:ffff:4e7b:d03b
78.123.208.60 0:0:0:0:0:ffff:4e7b:d03c


78.123.208.61 0:0:0:0:0:ffff:4e7b:d03d
78.123.208.62 0:0:0:0:0:ffff:4e7b:d03e
78.123.208.63 0:0:0:0:0:ffff:4e7b:d03f
78.123.208.64 0:0:0:0:0:ffff:4e7b:d040
78.123.208.65 0:0:0:0:0:ffff:4e7b:d041
78.123.208.66 0:0:0:0:0:ffff:4e7b:d042
78.123.208.67 0:0:0:0:0:ffff:4e7b:d043
78.123.208.68 0:0:0:0:0:ffff:4e7b:d044
78.123.208.69 0:0:0:0:0:ffff:4e7b:d045
78.123.208.70 0:0:0:0:0:ffff:4e7b:d046
78.123.208.71 0:0:0:0:0:ffff:4e7b:d047
78.123.208.72 0:0:0:0:0:ffff:4e7b:d048
78.123.208.73 0:0:0:0:0:ffff:4e7b:d049
78.123.208.74 0:0:0:0:0:ffff:4e7b:d04a
78.123.208.75 0:0:0:0:0:ffff:4e7b:d04b
78.123.208.76 0:0:0:0:0:ffff:4e7b:d04c
78.123.208.77 0:0:0:0:0:ffff:4e7b:d04d
78.123.208.78 0:0:0:0:0:ffff:4e7b:d04e
78.123.208.79 0:0:0:0:0:ffff:4e7b:d04f
78.123.208.80 0:0:0:0:0:ffff:4e7b:d050
78.123.208.81 0:0:0:0:0:ffff:4e7b:d051
78.123.208.82 0:0:0:0:0:ffff:4e7b:d052
78.123.208.83 0:0:0:0:0:ffff:4e7b:d053
78.123.208.84 0:0:0:0:0:ffff:4e7b:d054
78.123.208.85 0:0:0:0:0:ffff:4e7b:d055
78.123.208.86 0:0:0:0:0:ffff:4e7b:d056
78.123.208.87 0:0:0:0:0:ffff:4e7b:d057
78.123.208.88 0:0:0:0:0:ffff:4e7b:d058
78.123.208.89 0:0:0:0:0:ffff:4e7b:d059
78.123.208.90 0:0:0:0:0:ffff:4e7b:d05a
78.123.208.91 0:0:0:0:0:ffff:4e7b:d05b
78.123.208.92 0:0:0:0:0:ffff:4e7b:d05c
78.123.208.93 0:0:0:0:0:ffff:4e7b:d05d
78.123.208.94 0:0:0:0:0:ffff:4e7b:d05e
78.123.208.95 0:0:0:0:0:ffff:4e7b:d05f
78.123.208.96 0:0:0:0:0:ffff:4e7b:d060
78.123.208.97 0:0:0:0:0:ffff:4e7b:d061
78.123.208.98 0:0:0:0:0:ffff:4e7b:d062
78.123.208.99 0:0:0:0:0:ffff:4e7b:d063
78.123.208.100 0:0:0:0:0:ffff:4e7b:d064
78.123.208.101 0:0:0:0:0:ffff:4e7b:d065
78.123.208.102 0:0:0:0:0:ffff:4e7b:d066
78.123.208.103 0:0:0:0:0:ffff:4e7b:d067
78.123.208.104 0:0:0:0:0:ffff:4e7b:d068
78.123.208.105 0:0:0:0:0:ffff:4e7b:d069
78.123.208.106 0:0:0:0:0:ffff:4e7b:d06a
78.123.208.107 0:0:0:0:0:ffff:4e7b:d06b
78.123.208.108 0:0:0:0:0:ffff:4e7b:d06c
78.123.208.109 0:0:0:0:0:ffff:4e7b:d06d
78.123.208.110 0:0:0:0:0:ffff:4e7b:d06e
78.123.208.111 0:0:0:0:0:ffff:4e7b:d06f
78.123.208.112 0:0:0:0:0:ffff:4e7b:d070
78.123.208.113 0:0:0:0:0:ffff:4e7b:d071
78.123.208.114 0:0:0:0:0:ffff:4e7b:d072
78.123.208.115 0:0:0:0:0:ffff:4e7b:d073
78.123.208.116 0:0:0:0:0:ffff:4e7b:d074
78.123.208.117 0:0:0:0:0:ffff:4e7b:d075
78.123.208.118 0:0:0:0:0:ffff:4e7b:d076
78.123.208.119 0:0:0:0:0:ffff:4e7b:d077
78.123.208.120 0:0:0:0:0:ffff:4e7b:d078


78.123.208.121 0:0:0:0:0:ffff:4e7b:d079
78.123.208.122 0:0:0:0:0:ffff:4e7b:d07a
78.123.208.123 0:0:0:0:0:ffff:4e7b:d07b
78.123.208.124 0:0:0:0:0:ffff:4e7b:d07c
78.123.208.125 0:0:0:0:0:ffff:4e7b:d07d
78.123.208.126 0:0:0:0:0:ffff:4e7b:d07e
78.123.208.127 0:0:0:0:0:ffff:4e7b:d07f
78.123.208.128 0:0:0:0:0:ffff:4e7b:d080
78.123.208.129 0:0:0:0:0:ffff:4e7b:d081
78.123.208.130 0:0:0:0:0:ffff:4e7b:d082
78.123.208.131 0:0:0:0:0:ffff:4e7b:d083
78.123.208.132 0:0:0:0:0:ffff:4e7b:d084
78.123.208.133 0:0:0:0:0:ffff:4e7b:d085
78.123.208.134 0:0:0:0:0:ffff:4e7b:d086
78.123.208.135 0:0:0:0:0:ffff:4e7b:d087
78.123.208.136 0:0:0:0:0:ffff:4e7b:d088
78.123.208.137 0:0:0:0:0:ffff:4e7b:d089
78.123.208.138 0:0:0:0:0:ffff:4e7b:d08a
78.123.208.139 0:0:0:0:0:ffff:4e7b:d08b
78.123.208.140 0:0:0:0:0:ffff:4e7b:d08c
78.123.208.141 0:0:0:0:0:ffff:4e7b:d08d
78.123.208.142 0:0:0:0:0:ffff:4e7b:d08e
78.123.208.143 0:0:0:0:0:ffff:4e7b:d08f
78.123.208.144 0:0:0:0:0:ffff:4e7b:d090
78.123.208.145 0:0:0:0:0:ffff:4e7b:d091
78.123.208.146 0:0:0:0:0:ffff:4e7b:d092
78.123.208.147 0:0:0:0:0:ffff:4e7b:d093
78.123.208.148 0:0:0:0:0:ffff:4e7b:d094
78.123.208.149 0:0:0:0:0:ffff:4e7b:d095
78.123.208.150 0:0:0:0:0:ffff:4e7b:d096
78.123.208.151 0:0:0:0:0:ffff:4e7b:d097
78.123.208.152 0:0:0:0:0:ffff:4e7b:d098
78.123.208.153 0:0:0:0:0:ffff:4e7b:d099
78.123.208.154 0:0:0:0:0:ffff:4e7b:d09a
78.123.208.155 0:0:0:0:0:ffff:4e7b:d09b
78.123.208.156 0:0:0:0:0:ffff:4e7b:d09c
78.123.208.157 0:0:0:0:0:ffff:4e7b:d09d
78.123.208.158 0:0:0:0:0:ffff:4e7b:d09e
78.123.208.159 0:0:0:0:0:ffff:4e7b:d09f
78.123.208.160 0:0:0:0:0:ffff:4e7b:d0a0
78.123.208.161 0:0:0:0:0:ffff:4e7b:d0a1
78.123.208.162 0:0:0:0:0:ffff:4e7b:d0a2
78.123.208.163 0:0:0:0:0:ffff:4e7b:d0a3
78.123.208.164 0:0:0:0:0:ffff:4e7b:d0a4
78.123.208.165 0:0:0:0:0:ffff:4e7b:d0a5
78.123.208.166 0:0:0:0:0:ffff:4e7b:d0a6
78.123.208.167 0:0:0:0:0:ffff:4e7b:d0a7
78.123.208.168 0:0:0:0:0:ffff:4e7b:d0a8
78.123.208.169 0:0:0:0:0:ffff:4e7b:d0a9
78.123.208.170 0:0:0:0:0:ffff:4e7b:d0aa
78.123.208.171 0:0:0:0:0:ffff:4e7b:d0ab
78.123.208.172 0:0:0:0:0:ffff:4e7b:d0ac
78.123.208.173 0:0:0:0:0:ffff:4e7b:d0ad
78.123.208.174 0:0:0:0:0:ffff:4e7b:d0ae
78.123.208.175 0:0:0:0:0:ffff:4e7b:d0af
78.123.208.176 0:0:0:0:0:ffff:4e7b:d0b0
78.123.208.177 0:0:0:0:0:ffff:4e7b:d0b1
78.123.208.178 0:0:0:0:0:ffff:4e7b:d0b2
78.123.208.179 0:0:0:0:0:ffff:4e7b:d0b3
78.123.208.180 0:0:0:0:0:ffff:4e7b:d0b4


78.123.208.181 0:0:0:0:0:ffff:4e7b:d0b5
78.123.208.182 0:0:0:0:0:ffff:4e7b:d0b6
78.123.208.183 0:0:0:0:0:ffff:4e7b:d0b7
78.123.208.184 0:0:0:0:0:ffff:4e7b:d0b8
78.123.208.185 0:0:0:0:0:ffff:4e7b:d0b9
78.123.208.186 0:0:0:0:0:ffff:4e7b:d0ba
78.123.208.187 0:0:0:0:0:ffff:4e7b:d0bb
78.123.208.188 0:0:0:0:0:ffff:4e7b:d0bc
78.123.208.189 0:0:0:0:0:ffff:4e7b:d0bd
78.123.208.190 0:0:0:0:0:ffff:4e7b:d0be
78.123.208.191 0:0:0:0:0:ffff:4e7b:d0bf
78.123.208.192 0:0:0:0:0:ffff:4e7b:d0c0
78.123.208.193 0:0:0:0:0:ffff:4e7b:d0c1
78.123.208.194 0:0:0:0:0:ffff:4e7b:d0c2
78.123.208.195 0:0:0:0:0:ffff:4e7b:d0c3
78.123.208.196 0:0:0:0:0:ffff:4e7b:d0c4
78.123.208.197 0:0:0:0:0:ffff:4e7b:d0c5
78.123.208.198 0:0:0:0:0:ffff:4e7b:d0c6
78.123.208.199 0:0:0:0:0:ffff:4e7b:d0c7
78.123.208.200 0:0:0:0:0:ffff:4e7b:d0c8
78.123.208.201 0:0:0:0:0:ffff:4e7b:d0c9
78.123.208.202 0:0:0:0:0:ffff:4e7b:d0ca
78.123.208.203 0:0:0:0:0:ffff:4e7b:d0cb
78.123.208.204 0:0:0:0:0:ffff:4e7b:d0cc
78.123.208.205 0:0:0:0:0:ffff:4e7b:d0cd
78.123.208.206 0:0:0:0:0:ffff:4e7b:d0ce
78.123.208.207 0:0:0:0:0:ffff:4e7b:d0cf
78.123.208.208 0:0:0:0:0:ffff:4e7b:d0d0
78.123.208.209 0:0:0:0:0:ffff:4e7b:d0d1
78.123.208.210 0:0:0:0:0:ffff:4e7b:d0d2
78.123.208.211 0:0:0:0:0:ffff:4e7b:d0d3
78.123.208.212 0:0:0:0:0:ffff:4e7b:d0d4
78.123.208.213 0:0:0:0:0:ffff:4e7b:d0d5
78.123.208.214 0:0:0:0:0:ffff:4e7b:d0d6
78.123.208.215 0:0:0:0:0:ffff:4e7b:d0d7
78.123.208.216 0:0:0:0:0:ffff:4e7b:d0d8
78.123.208.217 0:0:0:0:0:ffff:4e7b:d0d9
78.123.208.218 0:0:0:0:0:ffff:4e7b:d0da
78.123.208.219 0:0:0:0:0:ffff:4e7b:d0db
78.123.208.220 0:0:0:0:0:ffff:4e7b:d0dc
78.123.208.221 0:0:0:0:0:ffff:4e7b:d0dd
78.123.208.222 0:0:0:0:0:ffff:4e7b:d0de
78.123.208.223 0:0:0:0:0:ffff:4e7b:d0df
78.123.208.224 0:0:0:0:0:ffff:4e7b:d0e0
78.123.208.225 0:0:0:0:0:ffff:4e7b:d0e1
78.123.208.226 0:0:0:0:0:ffff:4e7b:d0e2
78.123.208.227 0:0:0:0:0:ffff:4e7b:d0e3
78.123.208.228 0:0:0:0:0:ffff:4e7b:d0e4
78.123.208.229 0:0:0:0:0:ffff:4e7b:d0e5
78.123.208.230 0:0:0:0:0:ffff:4e7b:d0e6
78.123.208.231 0:0:0:0:0:ffff:4e7b:d0e7
78.123.208.232 0:0:0:0:0:ffff:4e7b:d0e8
78.123.208.233 0:0:0:0:0:ffff:4e7b:d0e9
78.123.208.234 0:0:0:0:0:ffff:4e7b:d0ea
78.123.208.235 0:0:0:0:0:ffff:4e7b:d0eb
78.123.208.236 0:0:0:0:0:ffff:4e7b:d0ec
78.123.208.237 0:0:0:0:0:ffff:4e7b:d0ed
78.123.208.238 0:0:0:0:0:ffff:4e7b:d0ee
78.123.208.239 0:0:0:0:0:ffff:4e7b:d0ef
78.123.208.240 0:0:0:0:0:ffff:4e7b:d0f0
78.123.208.241 0:0:0:0:0:ffff:4e7b:d0f1
78.123.208.242 0:0:0:0:0:ffff:4e7b:d0f2
78.123.208.243 0:0:0:0:0:ffff:4e7b:d0f3
78.123.208.244 0:0:0:0:0:ffff:4e7b:d0f4
78.123.208.245 0:0:0:0:0:ffff:4e7b:d0f5
78.123.208.246 0:0:0:0:0:ffff:4e7b:d0f6
78.123.208.247 0:0:0:0:0:ffff:4e7b:d0f7
78.123.208.248 0:0:0:0:0:ffff:4e7b:d0f8
78.123.208.249 0:0:0:0:0:ffff:4e7b:d0f9
78.123.208.250 0:0:0:0:0:ffff:4e7b:d0fa
78.123.208.251 0:0:0:0:0:ffff:4e7b:d0fb
78.123.208.252 0:0:0:0:0:ffff:4e7b:d0fc
78.123.208.253 0:0:0:0:0:ffff:4e7b:d0fd
78.123.208.254 0:0:0:0:0:ffff:4e7b:d0fe
78.123.208.255 0:0:0:0:0:ffff:4e7b:d0ff


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.