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
65.121.111.1 0:0:0:0:0:ffff:4179:6f01
65.121.111.2 0:0:0:0:0:ffff:4179:6f02
65.121.111.3 0:0:0:0:0:ffff:4179:6f03
65.121.111.4 0:0:0:0:0:ffff:4179:6f04
65.121.111.5 0:0:0:0:0:ffff:4179:6f05
65.121.111.6 0:0:0:0:0:ffff:4179:6f06
65.121.111.7 0:0:0:0:0:ffff:4179:6f07
65.121.111.8 0:0:0:0:0:ffff:4179:6f08
65.121.111.9 0:0:0:0:0:ffff:4179:6f09
65.121.111.10 0:0:0:0:0:ffff:4179:6f0a
65.121.111.11 0:0:0:0:0:ffff:4179:6f0b
65.121.111.12 0:0:0:0:0:ffff:4179:6f0c
65.121.111.13 0:0:0:0:0:ffff:4179:6f0d
65.121.111.14 0:0:0:0:0:ffff:4179:6f0e
65.121.111.15 0:0:0:0:0:ffff:4179:6f0f
65.121.111.16 0:0:0:0:0:ffff:4179:6f10
65.121.111.17 0:0:0:0:0:ffff:4179:6f11
65.121.111.18 0:0:0:0:0:ffff:4179:6f12
65.121.111.19 0:0:0:0:0:ffff:4179:6f13
65.121.111.20 0:0:0:0:0:ffff:4179:6f14
65.121.111.21 0:0:0:0:0:ffff:4179:6f15
65.121.111.22 0:0:0:0:0:ffff:4179:6f16
65.121.111.23 0:0:0:0:0:ffff:4179:6f17
65.121.111.24 0:0:0:0:0:ffff:4179:6f18
65.121.111.25 0:0:0:0:0:ffff:4179:6f19
65.121.111.26 0:0:0:0:0:ffff:4179:6f1a
65.121.111.27 0:0:0:0:0:ffff:4179:6f1b
65.121.111.28 0:0:0:0:0:ffff:4179:6f1c
65.121.111.29 0:0:0:0:0:ffff:4179:6f1d
65.121.111.30 0:0:0:0:0:ffff:4179:6f1e
65.121.111.31 0:0:0:0:0:ffff:4179:6f1f
65.121.111.32 0:0:0:0:0:ffff:4179:6f20
65.121.111.33 0:0:0:0:0:ffff:4179:6f21
65.121.111.34 0:0:0:0:0:ffff:4179:6f22
65.121.111.35 0:0:0:0:0:ffff:4179:6f23
65.121.111.36 0:0:0:0:0:ffff:4179:6f24
65.121.111.37 0:0:0:0:0:ffff:4179:6f25
65.121.111.38 0:0:0:0:0:ffff:4179:6f26
65.121.111.39 0:0:0:0:0:ffff:4179:6f27
65.121.111.40 0:0:0:0:0:ffff:4179:6f28
65.121.111.41 0:0:0:0:0:ffff:4179:6f29
65.121.111.42 0:0:0:0:0:ffff:4179:6f2a
65.121.111.43 0:0:0:0:0:ffff:4179:6f2b
65.121.111.44 0:0:0:0:0:ffff:4179:6f2c
65.121.111.45 0:0:0:0:0:ffff:4179:6f2d
65.121.111.46 0:0:0:0:0:ffff:4179:6f2e
65.121.111.47 0:0:0:0:0:ffff:4179:6f2f
65.121.111.48 0:0:0:0:0:ffff:4179:6f30
65.121.111.49 0:0:0:0:0:ffff:4179:6f31
65.121.111.50 0:0:0:0:0:ffff:4179:6f32
65.121.111.51 0:0:0:0:0:ffff:4179:6f33
65.121.111.52 0:0:0:0:0:ffff:4179:6f34
65.121.111.53 0:0:0:0:0:ffff:4179:6f35
65.121.111.54 0:0:0:0:0:ffff:4179:6f36
65.121.111.55 0:0:0:0:0:ffff:4179:6f37
65.121.111.56 0:0:0:0:0:ffff:4179:6f38
65.121.111.57 0:0:0:0:0:ffff:4179:6f39
65.121.111.58 0:0:0:0:0:ffff:4179:6f3a
65.121.111.59 0:0:0:0:0:ffff:4179:6f3b
65.121.111.60 0:0:0:0:0:ffff:4179:6f3c


65.121.111.61 0:0:0:0:0:ffff:4179:6f3d
65.121.111.62 0:0:0:0:0:ffff:4179:6f3e
65.121.111.63 0:0:0:0:0:ffff:4179:6f3f
65.121.111.64 0:0:0:0:0:ffff:4179:6f40
65.121.111.65 0:0:0:0:0:ffff:4179:6f41
65.121.111.66 0:0:0:0:0:ffff:4179:6f42
65.121.111.67 0:0:0:0:0:ffff:4179:6f43
65.121.111.68 0:0:0:0:0:ffff:4179:6f44
65.121.111.69 0:0:0:0:0:ffff:4179:6f45
65.121.111.70 0:0:0:0:0:ffff:4179:6f46
65.121.111.71 0:0:0:0:0:ffff:4179:6f47
65.121.111.72 0:0:0:0:0:ffff:4179:6f48
65.121.111.73 0:0:0:0:0:ffff:4179:6f49
65.121.111.74 0:0:0:0:0:ffff:4179:6f4a
65.121.111.75 0:0:0:0:0:ffff:4179:6f4b
65.121.111.76 0:0:0:0:0:ffff:4179:6f4c
65.121.111.77 0:0:0:0:0:ffff:4179:6f4d
65.121.111.78 0:0:0:0:0:ffff:4179:6f4e
65.121.111.79 0:0:0:0:0:ffff:4179:6f4f
65.121.111.80 0:0:0:0:0:ffff:4179:6f50
65.121.111.81 0:0:0:0:0:ffff:4179:6f51
65.121.111.82 0:0:0:0:0:ffff:4179:6f52
65.121.111.83 0:0:0:0:0:ffff:4179:6f53
65.121.111.84 0:0:0:0:0:ffff:4179:6f54
65.121.111.85 0:0:0:0:0:ffff:4179:6f55
65.121.111.86 0:0:0:0:0:ffff:4179:6f56
65.121.111.87 0:0:0:0:0:ffff:4179:6f57
65.121.111.88 0:0:0:0:0:ffff:4179:6f58
65.121.111.89 0:0:0:0:0:ffff:4179:6f59
65.121.111.90 0:0:0:0:0:ffff:4179:6f5a
65.121.111.91 0:0:0:0:0:ffff:4179:6f5b
65.121.111.92 0:0:0:0:0:ffff:4179:6f5c
65.121.111.93 0:0:0:0:0:ffff:4179:6f5d
65.121.111.94 0:0:0:0:0:ffff:4179:6f5e
65.121.111.95 0:0:0:0:0:ffff:4179:6f5f
65.121.111.96 0:0:0:0:0:ffff:4179:6f60
65.121.111.97 0:0:0:0:0:ffff:4179:6f61
65.121.111.98 0:0:0:0:0:ffff:4179:6f62
65.121.111.99 0:0:0:0:0:ffff:4179:6f63
65.121.111.100 0:0:0:0:0:ffff:4179:6f64
65.121.111.101 0:0:0:0:0:ffff:4179:6f65
65.121.111.102 0:0:0:0:0:ffff:4179:6f66
65.121.111.103 0:0:0:0:0:ffff:4179:6f67
65.121.111.104 0:0:0:0:0:ffff:4179:6f68
65.121.111.105 0:0:0:0:0:ffff:4179:6f69
65.121.111.106 0:0:0:0:0:ffff:4179:6f6a
65.121.111.107 0:0:0:0:0:ffff:4179:6f6b
65.121.111.108 0:0:0:0:0:ffff:4179:6f6c
65.121.111.109 0:0:0:0:0:ffff:4179:6f6d
65.121.111.110 0:0:0:0:0:ffff:4179:6f6e
65.121.111.111 0:0:0:0:0:ffff:4179:6f6f
65.121.111.112 0:0:0:0:0:ffff:4179:6f70
65.121.111.113 0:0:0:0:0:ffff:4179:6f71
65.121.111.114 0:0:0:0:0:ffff:4179:6f72
65.121.111.115 0:0:0:0:0:ffff:4179:6f73
65.121.111.116 0:0:0:0:0:ffff:4179:6f74
65.121.111.117 0:0:0:0:0:ffff:4179:6f75
65.121.111.118 0:0:0:0:0:ffff:4179:6f76
65.121.111.119 0:0:0:0:0:ffff:4179:6f77
65.121.111.120 0:0:0:0:0:ffff:4179:6f78


65.121.111.121 0:0:0:0:0:ffff:4179:6f79
65.121.111.122 0:0:0:0:0:ffff:4179:6f7a
65.121.111.123 0:0:0:0:0:ffff:4179:6f7b
65.121.111.124 0:0:0:0:0:ffff:4179:6f7c
65.121.111.125 0:0:0:0:0:ffff:4179:6f7d
65.121.111.126 0:0:0:0:0:ffff:4179:6f7e
65.121.111.127 0:0:0:0:0:ffff:4179:6f7f
65.121.111.128 0:0:0:0:0:ffff:4179:6f80
65.121.111.129 0:0:0:0:0:ffff:4179:6f81
65.121.111.130 0:0:0:0:0:ffff:4179:6f82
65.121.111.131 0:0:0:0:0:ffff:4179:6f83
65.121.111.132 0:0:0:0:0:ffff:4179:6f84
65.121.111.133 0:0:0:0:0:ffff:4179:6f85
65.121.111.134 0:0:0:0:0:ffff:4179:6f86
65.121.111.135 0:0:0:0:0:ffff:4179:6f87
65.121.111.136 0:0:0:0:0:ffff:4179:6f88
65.121.111.137 0:0:0:0:0:ffff:4179:6f89
65.121.111.138 0:0:0:0:0:ffff:4179:6f8a
65.121.111.139 0:0:0:0:0:ffff:4179:6f8b
65.121.111.140 0:0:0:0:0:ffff:4179:6f8c
65.121.111.141 0:0:0:0:0:ffff:4179:6f8d
65.121.111.142 0:0:0:0:0:ffff:4179:6f8e
65.121.111.143 0:0:0:0:0:ffff:4179:6f8f
65.121.111.144 0:0:0:0:0:ffff:4179:6f90
65.121.111.145 0:0:0:0:0:ffff:4179:6f91
65.121.111.146 0:0:0:0:0:ffff:4179:6f92
65.121.111.147 0:0:0:0:0:ffff:4179:6f93
65.121.111.148 0:0:0:0:0:ffff:4179:6f94
65.121.111.149 0:0:0:0:0:ffff:4179:6f95
65.121.111.150 0:0:0:0:0:ffff:4179:6f96
65.121.111.151 0:0:0:0:0:ffff:4179:6f97
65.121.111.152 0:0:0:0:0:ffff:4179:6f98
65.121.111.153 0:0:0:0:0:ffff:4179:6f99
65.121.111.154 0:0:0:0:0:ffff:4179:6f9a
65.121.111.155 0:0:0:0:0:ffff:4179:6f9b
65.121.111.156 0:0:0:0:0:ffff:4179:6f9c
65.121.111.157 0:0:0:0:0:ffff:4179:6f9d
65.121.111.158 0:0:0:0:0:ffff:4179:6f9e
65.121.111.159 0:0:0:0:0:ffff:4179:6f9f
65.121.111.160 0:0:0:0:0:ffff:4179:6fa0
65.121.111.161 0:0:0:0:0:ffff:4179:6fa1
65.121.111.162 0:0:0:0:0:ffff:4179:6fa2
65.121.111.163 0:0:0:0:0:ffff:4179:6fa3
65.121.111.164 0:0:0:0:0:ffff:4179:6fa4
65.121.111.165 0:0:0:0:0:ffff:4179:6fa5
65.121.111.166 0:0:0:0:0:ffff:4179:6fa6
65.121.111.167 0:0:0:0:0:ffff:4179:6fa7
65.121.111.168 0:0:0:0:0:ffff:4179:6fa8
65.121.111.169 0:0:0:0:0:ffff:4179:6fa9
65.121.111.170 0:0:0:0:0:ffff:4179:6faa
65.121.111.171 0:0:0:0:0:ffff:4179:6fab
65.121.111.172 0:0:0:0:0:ffff:4179:6fac
65.121.111.173 0:0:0:0:0:ffff:4179:6fad
65.121.111.174 0:0:0:0:0:ffff:4179:6fae
65.121.111.175 0:0:0:0:0:ffff:4179:6faf
65.121.111.176 0:0:0:0:0:ffff:4179:6fb0
65.121.111.177 0:0:0:0:0:ffff:4179:6fb1
65.121.111.178 0:0:0:0:0:ffff:4179:6fb2
65.121.111.179 0:0:0:0:0:ffff:4179:6fb3
65.121.111.180 0:0:0:0:0:ffff:4179:6fb4


65.121.111.181 0:0:0:0:0:ffff:4179:6fb5
65.121.111.182 0:0:0:0:0:ffff:4179:6fb6
65.121.111.183 0:0:0:0:0:ffff:4179:6fb7
65.121.111.184 0:0:0:0:0:ffff:4179:6fb8
65.121.111.185 0:0:0:0:0:ffff:4179:6fb9
65.121.111.186 0:0:0:0:0:ffff:4179:6fba
65.121.111.187 0:0:0:0:0:ffff:4179:6fbb
65.121.111.188 0:0:0:0:0:ffff:4179:6fbc
65.121.111.189 0:0:0:0:0:ffff:4179:6fbd
65.121.111.190 0:0:0:0:0:ffff:4179:6fbe
65.121.111.191 0:0:0:0:0:ffff:4179:6fbf
65.121.111.192 0:0:0:0:0:ffff:4179:6fc0
65.121.111.193 0:0:0:0:0:ffff:4179:6fc1
65.121.111.194 0:0:0:0:0:ffff:4179:6fc2
65.121.111.195 0:0:0:0:0:ffff:4179:6fc3
65.121.111.196 0:0:0:0:0:ffff:4179:6fc4
65.121.111.197 0:0:0:0:0:ffff:4179:6fc5
65.121.111.198 0:0:0:0:0:ffff:4179:6fc6
65.121.111.199 0:0:0:0:0:ffff:4179:6fc7
65.121.111.200 0:0:0:0:0:ffff:4179:6fc8
65.121.111.201 0:0:0:0:0:ffff:4179:6fc9
65.121.111.202 0:0:0:0:0:ffff:4179:6fca
65.121.111.203 0:0:0:0:0:ffff:4179:6fcb
65.121.111.204 0:0:0:0:0:ffff:4179:6fcc
65.121.111.205 0:0:0:0:0:ffff:4179:6fcd
65.121.111.206 0:0:0:0:0:ffff:4179:6fce
65.121.111.207 0:0:0:0:0:ffff:4179:6fcf
65.121.111.208 0:0:0:0:0:ffff:4179:6fd0
65.121.111.209 0:0:0:0:0:ffff:4179:6fd1
65.121.111.210 0:0:0:0:0:ffff:4179:6fd2
65.121.111.211 0:0:0:0:0:ffff:4179:6fd3
65.121.111.212 0:0:0:0:0:ffff:4179:6fd4
65.121.111.213 0:0:0:0:0:ffff:4179:6fd5
65.121.111.214 0:0:0:0:0:ffff:4179:6fd6
65.121.111.215 0:0:0:0:0:ffff:4179:6fd7
65.121.111.216 0:0:0:0:0:ffff:4179:6fd8
65.121.111.217 0:0:0:0:0:ffff:4179:6fd9
65.121.111.218 0:0:0:0:0:ffff:4179:6fda
65.121.111.219 0:0:0:0:0:ffff:4179:6fdb
65.121.111.220 0:0:0:0:0:ffff:4179:6fdc
65.121.111.221 0:0:0:0:0:ffff:4179:6fdd
65.121.111.222 0:0:0:0:0:ffff:4179:6fde
65.121.111.223 0:0:0:0:0:ffff:4179:6fdf
65.121.111.224 0:0:0:0:0:ffff:4179:6fe0
65.121.111.225 0:0:0:0:0:ffff:4179:6fe1
65.121.111.226 0:0:0:0:0:ffff:4179:6fe2
65.121.111.227 0:0:0:0:0:ffff:4179:6fe3
65.121.111.228 0:0:0:0:0:ffff:4179:6fe4
65.121.111.229 0:0:0:0:0:ffff:4179:6fe5
65.121.111.230 0:0:0:0:0:ffff:4179:6fe6
65.121.111.231 0:0:0:0:0:ffff:4179:6fe7
65.121.111.232 0:0:0:0:0:ffff:4179:6fe8
65.121.111.233 0:0:0:0:0:ffff:4179:6fe9
65.121.111.234 0:0:0:0:0:ffff:4179:6fea
65.121.111.235 0:0:0:0:0:ffff:4179:6feb
65.121.111.236 0:0:0:0:0:ffff:4179:6fec
65.121.111.237 0:0:0:0:0:ffff:4179:6fed
65.121.111.238 0:0:0:0:0:ffff:4179:6fee
65.121.111.239 0:0:0:0:0:ffff:4179:6fef
65.121.111.240 0:0:0:0:0:ffff:4179:6ff0
65.121.111.241 0:0:0:0:0:ffff:4179:6ff1
65.121.111.242 0:0:0:0:0:ffff:4179:6ff2
65.121.111.243 0:0:0:0:0:ffff:4179:6ff3
65.121.111.244 0:0:0:0:0:ffff:4179:6ff4
65.121.111.245 0:0:0:0:0:ffff:4179:6ff5
65.121.111.246 0:0:0:0:0:ffff:4179:6ff6
65.121.111.247 0:0:0:0:0:ffff:4179:6ff7
65.121.111.248 0:0:0:0:0:ffff:4179:6ff8
65.121.111.249 0:0:0:0:0:ffff:4179:6ff9
65.121.111.250 0:0:0:0:0:ffff:4179:6ffa
65.121.111.251 0:0:0:0:0:ffff:4179:6ffb
65.121.111.252 0:0:0:0:0:ffff:4179:6ffc
65.121.111.253 0:0:0:0:0:ffff:4179:6ffd
65.121.111.254 0:0:0:0:0:ffff:4179:6ffe
65.121.111.255 0:0:0:0:0:ffff:4179:6fff


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.