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
111.251.45.1 0:0:0:0:0:ffff:6ffb:2d01
111.251.45.2 0:0:0:0:0:ffff:6ffb:2d02
111.251.45.3 0:0:0:0:0:ffff:6ffb:2d03
111.251.45.4 0:0:0:0:0:ffff:6ffb:2d04
111.251.45.5 0:0:0:0:0:ffff:6ffb:2d05
111.251.45.6 0:0:0:0:0:ffff:6ffb:2d06
111.251.45.7 0:0:0:0:0:ffff:6ffb:2d07
111.251.45.8 0:0:0:0:0:ffff:6ffb:2d08
111.251.45.9 0:0:0:0:0:ffff:6ffb:2d09
111.251.45.10 0:0:0:0:0:ffff:6ffb:2d0a
111.251.45.11 0:0:0:0:0:ffff:6ffb:2d0b
111.251.45.12 0:0:0:0:0:ffff:6ffb:2d0c
111.251.45.13 0:0:0:0:0:ffff:6ffb:2d0d
111.251.45.14 0:0:0:0:0:ffff:6ffb:2d0e
111.251.45.15 0:0:0:0:0:ffff:6ffb:2d0f
111.251.45.16 0:0:0:0:0:ffff:6ffb:2d10
111.251.45.17 0:0:0:0:0:ffff:6ffb:2d11
111.251.45.18 0:0:0:0:0:ffff:6ffb:2d12
111.251.45.19 0:0:0:0:0:ffff:6ffb:2d13
111.251.45.20 0:0:0:0:0:ffff:6ffb:2d14
111.251.45.21 0:0:0:0:0:ffff:6ffb:2d15
111.251.45.22 0:0:0:0:0:ffff:6ffb:2d16
111.251.45.23 0:0:0:0:0:ffff:6ffb:2d17
111.251.45.24 0:0:0:0:0:ffff:6ffb:2d18
111.251.45.25 0:0:0:0:0:ffff:6ffb:2d19
111.251.45.26 0:0:0:0:0:ffff:6ffb:2d1a
111.251.45.27 0:0:0:0:0:ffff:6ffb:2d1b
111.251.45.28 0:0:0:0:0:ffff:6ffb:2d1c
111.251.45.29 0:0:0:0:0:ffff:6ffb:2d1d
111.251.45.30 0:0:0:0:0:ffff:6ffb:2d1e
111.251.45.31 0:0:0:0:0:ffff:6ffb:2d1f
111.251.45.32 0:0:0:0:0:ffff:6ffb:2d20
111.251.45.33 0:0:0:0:0:ffff:6ffb:2d21
111.251.45.34 0:0:0:0:0:ffff:6ffb:2d22
111.251.45.35 0:0:0:0:0:ffff:6ffb:2d23
111.251.45.36 0:0:0:0:0:ffff:6ffb:2d24
111.251.45.37 0:0:0:0:0:ffff:6ffb:2d25
111.251.45.38 0:0:0:0:0:ffff:6ffb:2d26
111.251.45.39 0:0:0:0:0:ffff:6ffb:2d27
111.251.45.40 0:0:0:0:0:ffff:6ffb:2d28
111.251.45.41 0:0:0:0:0:ffff:6ffb:2d29
111.251.45.42 0:0:0:0:0:ffff:6ffb:2d2a
111.251.45.43 0:0:0:0:0:ffff:6ffb:2d2b
111.251.45.44 0:0:0:0:0:ffff:6ffb:2d2c
111.251.45.45 0:0:0:0:0:ffff:6ffb:2d2d
111.251.45.46 0:0:0:0:0:ffff:6ffb:2d2e
111.251.45.47 0:0:0:0:0:ffff:6ffb:2d2f
111.251.45.48 0:0:0:0:0:ffff:6ffb:2d30
111.251.45.49 0:0:0:0:0:ffff:6ffb:2d31
111.251.45.50 0:0:0:0:0:ffff:6ffb:2d32
111.251.45.51 0:0:0:0:0:ffff:6ffb:2d33
111.251.45.52 0:0:0:0:0:ffff:6ffb:2d34
111.251.45.53 0:0:0:0:0:ffff:6ffb:2d35
111.251.45.54 0:0:0:0:0:ffff:6ffb:2d36
111.251.45.55 0:0:0:0:0:ffff:6ffb:2d37
111.251.45.56 0:0:0:0:0:ffff:6ffb:2d38
111.251.45.57 0:0:0:0:0:ffff:6ffb:2d39
111.251.45.58 0:0:0:0:0:ffff:6ffb:2d3a
111.251.45.59 0:0:0:0:0:ffff:6ffb:2d3b
111.251.45.60 0:0:0:0:0:ffff:6ffb:2d3c


111.251.45.61 0:0:0:0:0:ffff:6ffb:2d3d
111.251.45.62 0:0:0:0:0:ffff:6ffb:2d3e
111.251.45.63 0:0:0:0:0:ffff:6ffb:2d3f
111.251.45.64 0:0:0:0:0:ffff:6ffb:2d40
111.251.45.65 0:0:0:0:0:ffff:6ffb:2d41
111.251.45.66 0:0:0:0:0:ffff:6ffb:2d42
111.251.45.67 0:0:0:0:0:ffff:6ffb:2d43
111.251.45.68 0:0:0:0:0:ffff:6ffb:2d44
111.251.45.69 0:0:0:0:0:ffff:6ffb:2d45
111.251.45.70 0:0:0:0:0:ffff:6ffb:2d46
111.251.45.71 0:0:0:0:0:ffff:6ffb:2d47
111.251.45.72 0:0:0:0:0:ffff:6ffb:2d48
111.251.45.73 0:0:0:0:0:ffff:6ffb:2d49
111.251.45.74 0:0:0:0:0:ffff:6ffb:2d4a
111.251.45.75 0:0:0:0:0:ffff:6ffb:2d4b
111.251.45.76 0:0:0:0:0:ffff:6ffb:2d4c
111.251.45.77 0:0:0:0:0:ffff:6ffb:2d4d
111.251.45.78 0:0:0:0:0:ffff:6ffb:2d4e
111.251.45.79 0:0:0:0:0:ffff:6ffb:2d4f
111.251.45.80 0:0:0:0:0:ffff:6ffb:2d50
111.251.45.81 0:0:0:0:0:ffff:6ffb:2d51
111.251.45.82 0:0:0:0:0:ffff:6ffb:2d52
111.251.45.83 0:0:0:0:0:ffff:6ffb:2d53
111.251.45.84 0:0:0:0:0:ffff:6ffb:2d54
111.251.45.85 0:0:0:0:0:ffff:6ffb:2d55
111.251.45.86 0:0:0:0:0:ffff:6ffb:2d56
111.251.45.87 0:0:0:0:0:ffff:6ffb:2d57
111.251.45.88 0:0:0:0:0:ffff:6ffb:2d58
111.251.45.89 0:0:0:0:0:ffff:6ffb:2d59
111.251.45.90 0:0:0:0:0:ffff:6ffb:2d5a
111.251.45.91 0:0:0:0:0:ffff:6ffb:2d5b
111.251.45.92 0:0:0:0:0:ffff:6ffb:2d5c
111.251.45.93 0:0:0:0:0:ffff:6ffb:2d5d
111.251.45.94 0:0:0:0:0:ffff:6ffb:2d5e
111.251.45.95 0:0:0:0:0:ffff:6ffb:2d5f
111.251.45.96 0:0:0:0:0:ffff:6ffb:2d60
111.251.45.97 0:0:0:0:0:ffff:6ffb:2d61
111.251.45.98 0:0:0:0:0:ffff:6ffb:2d62
111.251.45.99 0:0:0:0:0:ffff:6ffb:2d63
111.251.45.100 0:0:0:0:0:ffff:6ffb:2d64
111.251.45.101 0:0:0:0:0:ffff:6ffb:2d65
111.251.45.102 0:0:0:0:0:ffff:6ffb:2d66
111.251.45.103 0:0:0:0:0:ffff:6ffb:2d67
111.251.45.104 0:0:0:0:0:ffff:6ffb:2d68
111.251.45.105 0:0:0:0:0:ffff:6ffb:2d69
111.251.45.106 0:0:0:0:0:ffff:6ffb:2d6a
111.251.45.107 0:0:0:0:0:ffff:6ffb:2d6b
111.251.45.108 0:0:0:0:0:ffff:6ffb:2d6c
111.251.45.109 0:0:0:0:0:ffff:6ffb:2d6d
111.251.45.110 0:0:0:0:0:ffff:6ffb:2d6e
111.251.45.111 0:0:0:0:0:ffff:6ffb:2d6f
111.251.45.112 0:0:0:0:0:ffff:6ffb:2d70
111.251.45.113 0:0:0:0:0:ffff:6ffb:2d71
111.251.45.114 0:0:0:0:0:ffff:6ffb:2d72
111.251.45.115 0:0:0:0:0:ffff:6ffb:2d73
111.251.45.116 0:0:0:0:0:ffff:6ffb:2d74
111.251.45.117 0:0:0:0:0:ffff:6ffb:2d75
111.251.45.118 0:0:0:0:0:ffff:6ffb:2d76
111.251.45.119 0:0:0:0:0:ffff:6ffb:2d77
111.251.45.120 0:0:0:0:0:ffff:6ffb:2d78


111.251.45.121 0:0:0:0:0:ffff:6ffb:2d79
111.251.45.122 0:0:0:0:0:ffff:6ffb:2d7a
111.251.45.123 0:0:0:0:0:ffff:6ffb:2d7b
111.251.45.124 0:0:0:0:0:ffff:6ffb:2d7c
111.251.45.125 0:0:0:0:0:ffff:6ffb:2d7d
111.251.45.126 0:0:0:0:0:ffff:6ffb:2d7e
111.251.45.127 0:0:0:0:0:ffff:6ffb:2d7f
111.251.45.128 0:0:0:0:0:ffff:6ffb:2d80
111.251.45.129 0:0:0:0:0:ffff:6ffb:2d81
111.251.45.130 0:0:0:0:0:ffff:6ffb:2d82
111.251.45.131 0:0:0:0:0:ffff:6ffb:2d83
111.251.45.132 0:0:0:0:0:ffff:6ffb:2d84
111.251.45.133 0:0:0:0:0:ffff:6ffb:2d85
111.251.45.134 0:0:0:0:0:ffff:6ffb:2d86
111.251.45.135 0:0:0:0:0:ffff:6ffb:2d87
111.251.45.136 0:0:0:0:0:ffff:6ffb:2d88
111.251.45.137 0:0:0:0:0:ffff:6ffb:2d89
111.251.45.138 0:0:0:0:0:ffff:6ffb:2d8a
111.251.45.139 0:0:0:0:0:ffff:6ffb:2d8b
111.251.45.140 0:0:0:0:0:ffff:6ffb:2d8c
111.251.45.141 0:0:0:0:0:ffff:6ffb:2d8d
111.251.45.142 0:0:0:0:0:ffff:6ffb:2d8e
111.251.45.143 0:0:0:0:0:ffff:6ffb:2d8f
111.251.45.144 0:0:0:0:0:ffff:6ffb:2d90
111.251.45.145 0:0:0:0:0:ffff:6ffb:2d91
111.251.45.146 0:0:0:0:0:ffff:6ffb:2d92
111.251.45.147 0:0:0:0:0:ffff:6ffb:2d93
111.251.45.148 0:0:0:0:0:ffff:6ffb:2d94
111.251.45.149 0:0:0:0:0:ffff:6ffb:2d95
111.251.45.150 0:0:0:0:0:ffff:6ffb:2d96
111.251.45.151 0:0:0:0:0:ffff:6ffb:2d97
111.251.45.152 0:0:0:0:0:ffff:6ffb:2d98
111.251.45.153 0:0:0:0:0:ffff:6ffb:2d99
111.251.45.154 0:0:0:0:0:ffff:6ffb:2d9a
111.251.45.155 0:0:0:0:0:ffff:6ffb:2d9b
111.251.45.156 0:0:0:0:0:ffff:6ffb:2d9c
111.251.45.157 0:0:0:0:0:ffff:6ffb:2d9d
111.251.45.158 0:0:0:0:0:ffff:6ffb:2d9e
111.251.45.159 0:0:0:0:0:ffff:6ffb:2d9f
111.251.45.160 0:0:0:0:0:ffff:6ffb:2da0
111.251.45.161 0:0:0:0:0:ffff:6ffb:2da1
111.251.45.162 0:0:0:0:0:ffff:6ffb:2da2
111.251.45.163 0:0:0:0:0:ffff:6ffb:2da3
111.251.45.164 0:0:0:0:0:ffff:6ffb:2da4
111.251.45.165 0:0:0:0:0:ffff:6ffb:2da5
111.251.45.166 0:0:0:0:0:ffff:6ffb:2da6
111.251.45.167 0:0:0:0:0:ffff:6ffb:2da7
111.251.45.168 0:0:0:0:0:ffff:6ffb:2da8
111.251.45.169 0:0:0:0:0:ffff:6ffb:2da9
111.251.45.170 0:0:0:0:0:ffff:6ffb:2daa
111.251.45.171 0:0:0:0:0:ffff:6ffb:2dab
111.251.45.172 0:0:0:0:0:ffff:6ffb:2dac
111.251.45.173 0:0:0:0:0:ffff:6ffb:2dad
111.251.45.174 0:0:0:0:0:ffff:6ffb:2dae
111.251.45.175 0:0:0:0:0:ffff:6ffb:2daf
111.251.45.176 0:0:0:0:0:ffff:6ffb:2db0
111.251.45.177 0:0:0:0:0:ffff:6ffb:2db1
111.251.45.178 0:0:0:0:0:ffff:6ffb:2db2
111.251.45.179 0:0:0:0:0:ffff:6ffb:2db3
111.251.45.180 0:0:0:0:0:ffff:6ffb:2db4


111.251.45.181 0:0:0:0:0:ffff:6ffb:2db5
111.251.45.182 0:0:0:0:0:ffff:6ffb:2db6
111.251.45.183 0:0:0:0:0:ffff:6ffb:2db7
111.251.45.184 0:0:0:0:0:ffff:6ffb:2db8
111.251.45.185 0:0:0:0:0:ffff:6ffb:2db9
111.251.45.186 0:0:0:0:0:ffff:6ffb:2dba
111.251.45.187 0:0:0:0:0:ffff:6ffb:2dbb
111.251.45.188 0:0:0:0:0:ffff:6ffb:2dbc
111.251.45.189 0:0:0:0:0:ffff:6ffb:2dbd
111.251.45.190 0:0:0:0:0:ffff:6ffb:2dbe
111.251.45.191 0:0:0:0:0:ffff:6ffb:2dbf
111.251.45.192 0:0:0:0:0:ffff:6ffb:2dc0
111.251.45.193 0:0:0:0:0:ffff:6ffb:2dc1
111.251.45.194 0:0:0:0:0:ffff:6ffb:2dc2
111.251.45.195 0:0:0:0:0:ffff:6ffb:2dc3
111.251.45.196 0:0:0:0:0:ffff:6ffb:2dc4
111.251.45.197 0:0:0:0:0:ffff:6ffb:2dc5
111.251.45.198 0:0:0:0:0:ffff:6ffb:2dc6
111.251.45.199 0:0:0:0:0:ffff:6ffb:2dc7
111.251.45.200 0:0:0:0:0:ffff:6ffb:2dc8
111.251.45.201 0:0:0:0:0:ffff:6ffb:2dc9
111.251.45.202 0:0:0:0:0:ffff:6ffb:2dca
111.251.45.203 0:0:0:0:0:ffff:6ffb:2dcb
111.251.45.204 0:0:0:0:0:ffff:6ffb:2dcc
111.251.45.205 0:0:0:0:0:ffff:6ffb:2dcd
111.251.45.206 0:0:0:0:0:ffff:6ffb:2dce
111.251.45.207 0:0:0:0:0:ffff:6ffb:2dcf
111.251.45.208 0:0:0:0:0:ffff:6ffb:2dd0
111.251.45.209 0:0:0:0:0:ffff:6ffb:2dd1
111.251.45.210 0:0:0:0:0:ffff:6ffb:2dd2
111.251.45.211 0:0:0:0:0:ffff:6ffb:2dd3
111.251.45.212 0:0:0:0:0:ffff:6ffb:2dd4
111.251.45.213 0:0:0:0:0:ffff:6ffb:2dd5
111.251.45.214 0:0:0:0:0:ffff:6ffb:2dd6
111.251.45.215 0:0:0:0:0:ffff:6ffb:2dd7
111.251.45.216 0:0:0:0:0:ffff:6ffb:2dd8
111.251.45.217 0:0:0:0:0:ffff:6ffb:2dd9
111.251.45.218 0:0:0:0:0:ffff:6ffb:2dda
111.251.45.219 0:0:0:0:0:ffff:6ffb:2ddb
111.251.45.220 0:0:0:0:0:ffff:6ffb:2ddc
111.251.45.221 0:0:0:0:0:ffff:6ffb:2ddd
111.251.45.222 0:0:0:0:0:ffff:6ffb:2dde
111.251.45.223 0:0:0:0:0:ffff:6ffb:2ddf
111.251.45.224 0:0:0:0:0:ffff:6ffb:2de0
111.251.45.225 0:0:0:0:0:ffff:6ffb:2de1
111.251.45.226 0:0:0:0:0:ffff:6ffb:2de2
111.251.45.227 0:0:0:0:0:ffff:6ffb:2de3
111.251.45.228 0:0:0:0:0:ffff:6ffb:2de4
111.251.45.229 0:0:0:0:0:ffff:6ffb:2de5
111.251.45.230 0:0:0:0:0:ffff:6ffb:2de6
111.251.45.231 0:0:0:0:0:ffff:6ffb:2de7
111.251.45.232 0:0:0:0:0:ffff:6ffb:2de8
111.251.45.233 0:0:0:0:0:ffff:6ffb:2de9
111.251.45.234 0:0:0:0:0:ffff:6ffb:2dea
111.251.45.235 0:0:0:0:0:ffff:6ffb:2deb
111.251.45.236 0:0:0:0:0:ffff:6ffb:2dec
111.251.45.237 0:0:0:0:0:ffff:6ffb:2ded
111.251.45.238 0:0:0:0:0:ffff:6ffb:2dee
111.251.45.239 0:0:0:0:0:ffff:6ffb:2def
111.251.45.240 0:0:0:0:0:ffff:6ffb:2df0
111.251.45.241 0:0:0:0:0:ffff:6ffb:2df1
111.251.45.242 0:0:0:0:0:ffff:6ffb:2df2
111.251.45.243 0:0:0:0:0:ffff:6ffb:2df3
111.251.45.244 0:0:0:0:0:ffff:6ffb:2df4
111.251.45.245 0:0:0:0:0:ffff:6ffb:2df5
111.251.45.246 0:0:0:0:0:ffff:6ffb:2df6
111.251.45.247 0:0:0:0:0:ffff:6ffb:2df7
111.251.45.248 0:0:0:0:0:ffff:6ffb:2df8
111.251.45.249 0:0:0:0:0:ffff:6ffb:2df9
111.251.45.250 0:0:0:0:0:ffff:6ffb:2dfa
111.251.45.251 0:0:0:0:0:ffff:6ffb:2dfb
111.251.45.252 0:0:0:0:0:ffff:6ffb:2dfc
111.251.45.253 0:0:0:0:0:ffff:6ffb:2dfd
111.251.45.254 0:0:0:0:0:ffff:6ffb:2dfe
111.251.45.255 0:0:0:0:0:ffff:6ffb:2dff


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.