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
191.131.78.1 0:0:0:0:0:ffff:bf83:4e01
191.131.78.2 0:0:0:0:0:ffff:bf83:4e02
191.131.78.3 0:0:0:0:0:ffff:bf83:4e03
191.131.78.4 0:0:0:0:0:ffff:bf83:4e04
191.131.78.5 0:0:0:0:0:ffff:bf83:4e05
191.131.78.6 0:0:0:0:0:ffff:bf83:4e06
191.131.78.7 0:0:0:0:0:ffff:bf83:4e07
191.131.78.8 0:0:0:0:0:ffff:bf83:4e08
191.131.78.9 0:0:0:0:0:ffff:bf83:4e09
191.131.78.10 0:0:0:0:0:ffff:bf83:4e0a
191.131.78.11 0:0:0:0:0:ffff:bf83:4e0b
191.131.78.12 0:0:0:0:0:ffff:bf83:4e0c
191.131.78.13 0:0:0:0:0:ffff:bf83:4e0d
191.131.78.14 0:0:0:0:0:ffff:bf83:4e0e
191.131.78.15 0:0:0:0:0:ffff:bf83:4e0f
191.131.78.16 0:0:0:0:0:ffff:bf83:4e10
191.131.78.17 0:0:0:0:0:ffff:bf83:4e11
191.131.78.18 0:0:0:0:0:ffff:bf83:4e12
191.131.78.19 0:0:0:0:0:ffff:bf83:4e13
191.131.78.20 0:0:0:0:0:ffff:bf83:4e14
191.131.78.21 0:0:0:0:0:ffff:bf83:4e15
191.131.78.22 0:0:0:0:0:ffff:bf83:4e16
191.131.78.23 0:0:0:0:0:ffff:bf83:4e17
191.131.78.24 0:0:0:0:0:ffff:bf83:4e18
191.131.78.25 0:0:0:0:0:ffff:bf83:4e19
191.131.78.26 0:0:0:0:0:ffff:bf83:4e1a
191.131.78.27 0:0:0:0:0:ffff:bf83:4e1b
191.131.78.28 0:0:0:0:0:ffff:bf83:4e1c
191.131.78.29 0:0:0:0:0:ffff:bf83:4e1d
191.131.78.30 0:0:0:0:0:ffff:bf83:4e1e
191.131.78.31 0:0:0:0:0:ffff:bf83:4e1f
191.131.78.32 0:0:0:0:0:ffff:bf83:4e20
191.131.78.33 0:0:0:0:0:ffff:bf83:4e21
191.131.78.34 0:0:0:0:0:ffff:bf83:4e22
191.131.78.35 0:0:0:0:0:ffff:bf83:4e23
191.131.78.36 0:0:0:0:0:ffff:bf83:4e24
191.131.78.37 0:0:0:0:0:ffff:bf83:4e25
191.131.78.38 0:0:0:0:0:ffff:bf83:4e26
191.131.78.39 0:0:0:0:0:ffff:bf83:4e27
191.131.78.40 0:0:0:0:0:ffff:bf83:4e28
191.131.78.41 0:0:0:0:0:ffff:bf83:4e29
191.131.78.42 0:0:0:0:0:ffff:bf83:4e2a
191.131.78.43 0:0:0:0:0:ffff:bf83:4e2b
191.131.78.44 0:0:0:0:0:ffff:bf83:4e2c
191.131.78.45 0:0:0:0:0:ffff:bf83:4e2d
191.131.78.46 0:0:0:0:0:ffff:bf83:4e2e
191.131.78.47 0:0:0:0:0:ffff:bf83:4e2f
191.131.78.48 0:0:0:0:0:ffff:bf83:4e30
191.131.78.49 0:0:0:0:0:ffff:bf83:4e31
191.131.78.50 0:0:0:0:0:ffff:bf83:4e32
191.131.78.51 0:0:0:0:0:ffff:bf83:4e33
191.131.78.52 0:0:0:0:0:ffff:bf83:4e34
191.131.78.53 0:0:0:0:0:ffff:bf83:4e35
191.131.78.54 0:0:0:0:0:ffff:bf83:4e36
191.131.78.55 0:0:0:0:0:ffff:bf83:4e37
191.131.78.56 0:0:0:0:0:ffff:bf83:4e38
191.131.78.57 0:0:0:0:0:ffff:bf83:4e39
191.131.78.58 0:0:0:0:0:ffff:bf83:4e3a
191.131.78.59 0:0:0:0:0:ffff:bf83:4e3b
191.131.78.60 0:0:0:0:0:ffff:bf83:4e3c


191.131.78.61 0:0:0:0:0:ffff:bf83:4e3d
191.131.78.62 0:0:0:0:0:ffff:bf83:4e3e
191.131.78.63 0:0:0:0:0:ffff:bf83:4e3f
191.131.78.64 0:0:0:0:0:ffff:bf83:4e40
191.131.78.65 0:0:0:0:0:ffff:bf83:4e41
191.131.78.66 0:0:0:0:0:ffff:bf83:4e42
191.131.78.67 0:0:0:0:0:ffff:bf83:4e43
191.131.78.68 0:0:0:0:0:ffff:bf83:4e44
191.131.78.69 0:0:0:0:0:ffff:bf83:4e45
191.131.78.70 0:0:0:0:0:ffff:bf83:4e46
191.131.78.71 0:0:0:0:0:ffff:bf83:4e47
191.131.78.72 0:0:0:0:0:ffff:bf83:4e48
191.131.78.73 0:0:0:0:0:ffff:bf83:4e49
191.131.78.74 0:0:0:0:0:ffff:bf83:4e4a
191.131.78.75 0:0:0:0:0:ffff:bf83:4e4b
191.131.78.76 0:0:0:0:0:ffff:bf83:4e4c
191.131.78.77 0:0:0:0:0:ffff:bf83:4e4d
191.131.78.78 0:0:0:0:0:ffff:bf83:4e4e
191.131.78.79 0:0:0:0:0:ffff:bf83:4e4f
191.131.78.80 0:0:0:0:0:ffff:bf83:4e50
191.131.78.81 0:0:0:0:0:ffff:bf83:4e51
191.131.78.82 0:0:0:0:0:ffff:bf83:4e52
191.131.78.83 0:0:0:0:0:ffff:bf83:4e53
191.131.78.84 0:0:0:0:0:ffff:bf83:4e54
191.131.78.85 0:0:0:0:0:ffff:bf83:4e55
191.131.78.86 0:0:0:0:0:ffff:bf83:4e56
191.131.78.87 0:0:0:0:0:ffff:bf83:4e57
191.131.78.88 0:0:0:0:0:ffff:bf83:4e58
191.131.78.89 0:0:0:0:0:ffff:bf83:4e59
191.131.78.90 0:0:0:0:0:ffff:bf83:4e5a
191.131.78.91 0:0:0:0:0:ffff:bf83:4e5b
191.131.78.92 0:0:0:0:0:ffff:bf83:4e5c
191.131.78.93 0:0:0:0:0:ffff:bf83:4e5d
191.131.78.94 0:0:0:0:0:ffff:bf83:4e5e
191.131.78.95 0:0:0:0:0:ffff:bf83:4e5f
191.131.78.96 0:0:0:0:0:ffff:bf83:4e60
191.131.78.97 0:0:0:0:0:ffff:bf83:4e61
191.131.78.98 0:0:0:0:0:ffff:bf83:4e62
191.131.78.99 0:0:0:0:0:ffff:bf83:4e63
191.131.78.100 0:0:0:0:0:ffff:bf83:4e64
191.131.78.101 0:0:0:0:0:ffff:bf83:4e65
191.131.78.102 0:0:0:0:0:ffff:bf83:4e66
191.131.78.103 0:0:0:0:0:ffff:bf83:4e67
191.131.78.104 0:0:0:0:0:ffff:bf83:4e68
191.131.78.105 0:0:0:0:0:ffff:bf83:4e69
191.131.78.106 0:0:0:0:0:ffff:bf83:4e6a
191.131.78.107 0:0:0:0:0:ffff:bf83:4e6b
191.131.78.108 0:0:0:0:0:ffff:bf83:4e6c
191.131.78.109 0:0:0:0:0:ffff:bf83:4e6d
191.131.78.110 0:0:0:0:0:ffff:bf83:4e6e
191.131.78.111 0:0:0:0:0:ffff:bf83:4e6f
191.131.78.112 0:0:0:0:0:ffff:bf83:4e70
191.131.78.113 0:0:0:0:0:ffff:bf83:4e71
191.131.78.114 0:0:0:0:0:ffff:bf83:4e72
191.131.78.115 0:0:0:0:0:ffff:bf83:4e73
191.131.78.116 0:0:0:0:0:ffff:bf83:4e74
191.131.78.117 0:0:0:0:0:ffff:bf83:4e75
191.131.78.118 0:0:0:0:0:ffff:bf83:4e76
191.131.78.119 0:0:0:0:0:ffff:bf83:4e77
191.131.78.120 0:0:0:0:0:ffff:bf83:4e78


191.131.78.121 0:0:0:0:0:ffff:bf83:4e79
191.131.78.122 0:0:0:0:0:ffff:bf83:4e7a
191.131.78.123 0:0:0:0:0:ffff:bf83:4e7b
191.131.78.124 0:0:0:0:0:ffff:bf83:4e7c
191.131.78.125 0:0:0:0:0:ffff:bf83:4e7d
191.131.78.126 0:0:0:0:0:ffff:bf83:4e7e
191.131.78.127 0:0:0:0:0:ffff:bf83:4e7f
191.131.78.128 0:0:0:0:0:ffff:bf83:4e80
191.131.78.129 0:0:0:0:0:ffff:bf83:4e81
191.131.78.130 0:0:0:0:0:ffff:bf83:4e82
191.131.78.131 0:0:0:0:0:ffff:bf83:4e83
191.131.78.132 0:0:0:0:0:ffff:bf83:4e84
191.131.78.133 0:0:0:0:0:ffff:bf83:4e85
191.131.78.134 0:0:0:0:0:ffff:bf83:4e86
191.131.78.135 0:0:0:0:0:ffff:bf83:4e87
191.131.78.136 0:0:0:0:0:ffff:bf83:4e88
191.131.78.137 0:0:0:0:0:ffff:bf83:4e89
191.131.78.138 0:0:0:0:0:ffff:bf83:4e8a
191.131.78.139 0:0:0:0:0:ffff:bf83:4e8b
191.131.78.140 0:0:0:0:0:ffff:bf83:4e8c
191.131.78.141 0:0:0:0:0:ffff:bf83:4e8d
191.131.78.142 0:0:0:0:0:ffff:bf83:4e8e
191.131.78.143 0:0:0:0:0:ffff:bf83:4e8f
191.131.78.144 0:0:0:0:0:ffff:bf83:4e90
191.131.78.145 0:0:0:0:0:ffff:bf83:4e91
191.131.78.146 0:0:0:0:0:ffff:bf83:4e92
191.131.78.147 0:0:0:0:0:ffff:bf83:4e93
191.131.78.148 0:0:0:0:0:ffff:bf83:4e94
191.131.78.149 0:0:0:0:0:ffff:bf83:4e95
191.131.78.150 0:0:0:0:0:ffff:bf83:4e96
191.131.78.151 0:0:0:0:0:ffff:bf83:4e97
191.131.78.152 0:0:0:0:0:ffff:bf83:4e98
191.131.78.153 0:0:0:0:0:ffff:bf83:4e99
191.131.78.154 0:0:0:0:0:ffff:bf83:4e9a
191.131.78.155 0:0:0:0:0:ffff:bf83:4e9b
191.131.78.156 0:0:0:0:0:ffff:bf83:4e9c
191.131.78.157 0:0:0:0:0:ffff:bf83:4e9d
191.131.78.158 0:0:0:0:0:ffff:bf83:4e9e
191.131.78.159 0:0:0:0:0:ffff:bf83:4e9f
191.131.78.160 0:0:0:0:0:ffff:bf83:4ea0
191.131.78.161 0:0:0:0:0:ffff:bf83:4ea1
191.131.78.162 0:0:0:0:0:ffff:bf83:4ea2
191.131.78.163 0:0:0:0:0:ffff:bf83:4ea3
191.131.78.164 0:0:0:0:0:ffff:bf83:4ea4
191.131.78.165 0:0:0:0:0:ffff:bf83:4ea5
191.131.78.166 0:0:0:0:0:ffff:bf83:4ea6
191.131.78.167 0:0:0:0:0:ffff:bf83:4ea7
191.131.78.168 0:0:0:0:0:ffff:bf83:4ea8
191.131.78.169 0:0:0:0:0:ffff:bf83:4ea9
191.131.78.170 0:0:0:0:0:ffff:bf83:4eaa
191.131.78.171 0:0:0:0:0:ffff:bf83:4eab
191.131.78.172 0:0:0:0:0:ffff:bf83:4eac
191.131.78.173 0:0:0:0:0:ffff:bf83:4ead
191.131.78.174 0:0:0:0:0:ffff:bf83:4eae
191.131.78.175 0:0:0:0:0:ffff:bf83:4eaf
191.131.78.176 0:0:0:0:0:ffff:bf83:4eb0
191.131.78.177 0:0:0:0:0:ffff:bf83:4eb1
191.131.78.178 0:0:0:0:0:ffff:bf83:4eb2
191.131.78.179 0:0:0:0:0:ffff:bf83:4eb3
191.131.78.180 0:0:0:0:0:ffff:bf83:4eb4


191.131.78.181 0:0:0:0:0:ffff:bf83:4eb5
191.131.78.182 0:0:0:0:0:ffff:bf83:4eb6
191.131.78.183 0:0:0:0:0:ffff:bf83:4eb7
191.131.78.184 0:0:0:0:0:ffff:bf83:4eb8
191.131.78.185 0:0:0:0:0:ffff:bf83:4eb9
191.131.78.186 0:0:0:0:0:ffff:bf83:4eba
191.131.78.187 0:0:0:0:0:ffff:bf83:4ebb
191.131.78.188 0:0:0:0:0:ffff:bf83:4ebc
191.131.78.189 0:0:0:0:0:ffff:bf83:4ebd
191.131.78.190 0:0:0:0:0:ffff:bf83:4ebe
191.131.78.191 0:0:0:0:0:ffff:bf83:4ebf
191.131.78.192 0:0:0:0:0:ffff:bf83:4ec0
191.131.78.193 0:0:0:0:0:ffff:bf83:4ec1
191.131.78.194 0:0:0:0:0:ffff:bf83:4ec2
191.131.78.195 0:0:0:0:0:ffff:bf83:4ec3
191.131.78.196 0:0:0:0:0:ffff:bf83:4ec4
191.131.78.197 0:0:0:0:0:ffff:bf83:4ec5
191.131.78.198 0:0:0:0:0:ffff:bf83:4ec6
191.131.78.199 0:0:0:0:0:ffff:bf83:4ec7
191.131.78.200 0:0:0:0:0:ffff:bf83:4ec8
191.131.78.201 0:0:0:0:0:ffff:bf83:4ec9
191.131.78.202 0:0:0:0:0:ffff:bf83:4eca
191.131.78.203 0:0:0:0:0:ffff:bf83:4ecb
191.131.78.204 0:0:0:0:0:ffff:bf83:4ecc
191.131.78.205 0:0:0:0:0:ffff:bf83:4ecd
191.131.78.206 0:0:0:0:0:ffff:bf83:4ece
191.131.78.207 0:0:0:0:0:ffff:bf83:4ecf
191.131.78.208 0:0:0:0:0:ffff:bf83:4ed0
191.131.78.209 0:0:0:0:0:ffff:bf83:4ed1
191.131.78.210 0:0:0:0:0:ffff:bf83:4ed2
191.131.78.211 0:0:0:0:0:ffff:bf83:4ed3
191.131.78.212 0:0:0:0:0:ffff:bf83:4ed4
191.131.78.213 0:0:0:0:0:ffff:bf83:4ed5
191.131.78.214 0:0:0:0:0:ffff:bf83:4ed6
191.131.78.215 0:0:0:0:0:ffff:bf83:4ed7
191.131.78.216 0:0:0:0:0:ffff:bf83:4ed8
191.131.78.217 0:0:0:0:0:ffff:bf83:4ed9
191.131.78.218 0:0:0:0:0:ffff:bf83:4eda
191.131.78.219 0:0:0:0:0:ffff:bf83:4edb
191.131.78.220 0:0:0:0:0:ffff:bf83:4edc
191.131.78.221 0:0:0:0:0:ffff:bf83:4edd
191.131.78.222 0:0:0:0:0:ffff:bf83:4ede
191.131.78.223 0:0:0:0:0:ffff:bf83:4edf
191.131.78.224 0:0:0:0:0:ffff:bf83:4ee0
191.131.78.225 0:0:0:0:0:ffff:bf83:4ee1
191.131.78.226 0:0:0:0:0:ffff:bf83:4ee2
191.131.78.227 0:0:0:0:0:ffff:bf83:4ee3
191.131.78.228 0:0:0:0:0:ffff:bf83:4ee4
191.131.78.229 0:0:0:0:0:ffff:bf83:4ee5
191.131.78.230 0:0:0:0:0:ffff:bf83:4ee6
191.131.78.231 0:0:0:0:0:ffff:bf83:4ee7
191.131.78.232 0:0:0:0:0:ffff:bf83:4ee8
191.131.78.233 0:0:0:0:0:ffff:bf83:4ee9
191.131.78.234 0:0:0:0:0:ffff:bf83:4eea
191.131.78.235 0:0:0:0:0:ffff:bf83:4eeb
191.131.78.236 0:0:0:0:0:ffff:bf83:4eec
191.131.78.237 0:0:0:0:0:ffff:bf83:4eed
191.131.78.238 0:0:0:0:0:ffff:bf83:4eee
191.131.78.239 0:0:0:0:0:ffff:bf83:4eef
191.131.78.240 0:0:0:0:0:ffff:bf83:4ef0
191.131.78.241 0:0:0:0:0:ffff:bf83:4ef1
191.131.78.242 0:0:0:0:0:ffff:bf83:4ef2
191.131.78.243 0:0:0:0:0:ffff:bf83:4ef3
191.131.78.244 0:0:0:0:0:ffff:bf83:4ef4
191.131.78.245 0:0:0:0:0:ffff:bf83:4ef5
191.131.78.246 0:0:0:0:0:ffff:bf83:4ef6
191.131.78.247 0:0:0:0:0:ffff:bf83:4ef7
191.131.78.248 0:0:0:0:0:ffff:bf83:4ef8
191.131.78.249 0:0:0:0:0:ffff:bf83:4ef9
191.131.78.250 0:0:0:0:0:ffff:bf83:4efa
191.131.78.251 0:0:0:0:0:ffff:bf83:4efb
191.131.78.252 0:0:0:0:0:ffff:bf83:4efc
191.131.78.253 0:0:0:0:0:ffff:bf83:4efd
191.131.78.254 0:0:0:0:0:ffff:bf83:4efe
191.131.78.255 0:0:0:0:0:ffff:bf83:4eff


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.