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
65.121.78.1 0:0:0:0:0:ffff:4179:4e01
65.121.78.2 0:0:0:0:0:ffff:4179:4e02
65.121.78.3 0:0:0:0:0:ffff:4179:4e03
65.121.78.4 0:0:0:0:0:ffff:4179:4e04
65.121.78.5 0:0:0:0:0:ffff:4179:4e05
65.121.78.6 0:0:0:0:0:ffff:4179:4e06
65.121.78.7 0:0:0:0:0:ffff:4179:4e07
65.121.78.8 0:0:0:0:0:ffff:4179:4e08
65.121.78.9 0:0:0:0:0:ffff:4179:4e09
65.121.78.10 0:0:0:0:0:ffff:4179:4e0a
65.121.78.11 0:0:0:0:0:ffff:4179:4e0b
65.121.78.12 0:0:0:0:0:ffff:4179:4e0c
65.121.78.13 0:0:0:0:0:ffff:4179:4e0d
65.121.78.14 0:0:0:0:0:ffff:4179:4e0e
65.121.78.15 0:0:0:0:0:ffff:4179:4e0f
65.121.78.16 0:0:0:0:0:ffff:4179:4e10
65.121.78.17 0:0:0:0:0:ffff:4179:4e11
65.121.78.18 0:0:0:0:0:ffff:4179:4e12
65.121.78.19 0:0:0:0:0:ffff:4179:4e13
65.121.78.20 0:0:0:0:0:ffff:4179:4e14
65.121.78.21 0:0:0:0:0:ffff:4179:4e15
65.121.78.22 0:0:0:0:0:ffff:4179:4e16
65.121.78.23 0:0:0:0:0:ffff:4179:4e17
65.121.78.24 0:0:0:0:0:ffff:4179:4e18
65.121.78.25 0:0:0:0:0:ffff:4179:4e19
65.121.78.26 0:0:0:0:0:ffff:4179:4e1a
65.121.78.27 0:0:0:0:0:ffff:4179:4e1b
65.121.78.28 0:0:0:0:0:ffff:4179:4e1c
65.121.78.29 0:0:0:0:0:ffff:4179:4e1d
65.121.78.30 0:0:0:0:0:ffff:4179:4e1e
65.121.78.31 0:0:0:0:0:ffff:4179:4e1f
65.121.78.32 0:0:0:0:0:ffff:4179:4e20
65.121.78.33 0:0:0:0:0:ffff:4179:4e21
65.121.78.34 0:0:0:0:0:ffff:4179:4e22
65.121.78.35 0:0:0:0:0:ffff:4179:4e23
65.121.78.36 0:0:0:0:0:ffff:4179:4e24
65.121.78.37 0:0:0:0:0:ffff:4179:4e25
65.121.78.38 0:0:0:0:0:ffff:4179:4e26
65.121.78.39 0:0:0:0:0:ffff:4179:4e27
65.121.78.40 0:0:0:0:0:ffff:4179:4e28
65.121.78.41 0:0:0:0:0:ffff:4179:4e29
65.121.78.42 0:0:0:0:0:ffff:4179:4e2a
65.121.78.43 0:0:0:0:0:ffff:4179:4e2b
65.121.78.44 0:0:0:0:0:ffff:4179:4e2c
65.121.78.45 0:0:0:0:0:ffff:4179:4e2d
65.121.78.46 0:0:0:0:0:ffff:4179:4e2e
65.121.78.47 0:0:0:0:0:ffff:4179:4e2f
65.121.78.48 0:0:0:0:0:ffff:4179:4e30
65.121.78.49 0:0:0:0:0:ffff:4179:4e31
65.121.78.50 0:0:0:0:0:ffff:4179:4e32
65.121.78.51 0:0:0:0:0:ffff:4179:4e33
65.121.78.52 0:0:0:0:0:ffff:4179:4e34
65.121.78.53 0:0:0:0:0:ffff:4179:4e35
65.121.78.54 0:0:0:0:0:ffff:4179:4e36
65.121.78.55 0:0:0:0:0:ffff:4179:4e37
65.121.78.56 0:0:0:0:0:ffff:4179:4e38
65.121.78.57 0:0:0:0:0:ffff:4179:4e39
65.121.78.58 0:0:0:0:0:ffff:4179:4e3a
65.121.78.59 0:0:0:0:0:ffff:4179:4e3b
65.121.78.60 0:0:0:0:0:ffff:4179:4e3c


65.121.78.61 0:0:0:0:0:ffff:4179:4e3d
65.121.78.62 0:0:0:0:0:ffff:4179:4e3e
65.121.78.63 0:0:0:0:0:ffff:4179:4e3f
65.121.78.64 0:0:0:0:0:ffff:4179:4e40
65.121.78.65 0:0:0:0:0:ffff:4179:4e41
65.121.78.66 0:0:0:0:0:ffff:4179:4e42
65.121.78.67 0:0:0:0:0:ffff:4179:4e43
65.121.78.68 0:0:0:0:0:ffff:4179:4e44
65.121.78.69 0:0:0:0:0:ffff:4179:4e45
65.121.78.70 0:0:0:0:0:ffff:4179:4e46
65.121.78.71 0:0:0:0:0:ffff:4179:4e47
65.121.78.72 0:0:0:0:0:ffff:4179:4e48
65.121.78.73 0:0:0:0:0:ffff:4179:4e49
65.121.78.74 0:0:0:0:0:ffff:4179:4e4a
65.121.78.75 0:0:0:0:0:ffff:4179:4e4b
65.121.78.76 0:0:0:0:0:ffff:4179:4e4c
65.121.78.77 0:0:0:0:0:ffff:4179:4e4d
65.121.78.78 0:0:0:0:0:ffff:4179:4e4e
65.121.78.79 0:0:0:0:0:ffff:4179:4e4f
65.121.78.80 0:0:0:0:0:ffff:4179:4e50
65.121.78.81 0:0:0:0:0:ffff:4179:4e51
65.121.78.82 0:0:0:0:0:ffff:4179:4e52
65.121.78.83 0:0:0:0:0:ffff:4179:4e53
65.121.78.84 0:0:0:0:0:ffff:4179:4e54
65.121.78.85 0:0:0:0:0:ffff:4179:4e55
65.121.78.86 0:0:0:0:0:ffff:4179:4e56
65.121.78.87 0:0:0:0:0:ffff:4179:4e57
65.121.78.88 0:0:0:0:0:ffff:4179:4e58
65.121.78.89 0:0:0:0:0:ffff:4179:4e59
65.121.78.90 0:0:0:0:0:ffff:4179:4e5a
65.121.78.91 0:0:0:0:0:ffff:4179:4e5b
65.121.78.92 0:0:0:0:0:ffff:4179:4e5c
65.121.78.93 0:0:0:0:0:ffff:4179:4e5d
65.121.78.94 0:0:0:0:0:ffff:4179:4e5e
65.121.78.95 0:0:0:0:0:ffff:4179:4e5f
65.121.78.96 0:0:0:0:0:ffff:4179:4e60
65.121.78.97 0:0:0:0:0:ffff:4179:4e61
65.121.78.98 0:0:0:0:0:ffff:4179:4e62
65.121.78.99 0:0:0:0:0:ffff:4179:4e63
65.121.78.100 0:0:0:0:0:ffff:4179:4e64
65.121.78.101 0:0:0:0:0:ffff:4179:4e65
65.121.78.102 0:0:0:0:0:ffff:4179:4e66
65.121.78.103 0:0:0:0:0:ffff:4179:4e67
65.121.78.104 0:0:0:0:0:ffff:4179:4e68
65.121.78.105 0:0:0:0:0:ffff:4179:4e69
65.121.78.106 0:0:0:0:0:ffff:4179:4e6a
65.121.78.107 0:0:0:0:0:ffff:4179:4e6b
65.121.78.108 0:0:0:0:0:ffff:4179:4e6c
65.121.78.109 0:0:0:0:0:ffff:4179:4e6d
65.121.78.110 0:0:0:0:0:ffff:4179:4e6e
65.121.78.111 0:0:0:0:0:ffff:4179:4e6f
65.121.78.112 0:0:0:0:0:ffff:4179:4e70
65.121.78.113 0:0:0:0:0:ffff:4179:4e71
65.121.78.114 0:0:0:0:0:ffff:4179:4e72
65.121.78.115 0:0:0:0:0:ffff:4179:4e73
65.121.78.116 0:0:0:0:0:ffff:4179:4e74
65.121.78.117 0:0:0:0:0:ffff:4179:4e75
65.121.78.118 0:0:0:0:0:ffff:4179:4e76
65.121.78.119 0:0:0:0:0:ffff:4179:4e77
65.121.78.120 0:0:0:0:0:ffff:4179:4e78


65.121.78.121 0:0:0:0:0:ffff:4179:4e79
65.121.78.122 0:0:0:0:0:ffff:4179:4e7a
65.121.78.123 0:0:0:0:0:ffff:4179:4e7b
65.121.78.124 0:0:0:0:0:ffff:4179:4e7c
65.121.78.125 0:0:0:0:0:ffff:4179:4e7d
65.121.78.126 0:0:0:0:0:ffff:4179:4e7e
65.121.78.127 0:0:0:0:0:ffff:4179:4e7f
65.121.78.128 0:0:0:0:0:ffff:4179:4e80
65.121.78.129 0:0:0:0:0:ffff:4179:4e81
65.121.78.130 0:0:0:0:0:ffff:4179:4e82
65.121.78.131 0:0:0:0:0:ffff:4179:4e83
65.121.78.132 0:0:0:0:0:ffff:4179:4e84
65.121.78.133 0:0:0:0:0:ffff:4179:4e85
65.121.78.134 0:0:0:0:0:ffff:4179:4e86
65.121.78.135 0:0:0:0:0:ffff:4179:4e87
65.121.78.136 0:0:0:0:0:ffff:4179:4e88
65.121.78.137 0:0:0:0:0:ffff:4179:4e89
65.121.78.138 0:0:0:0:0:ffff:4179:4e8a
65.121.78.139 0:0:0:0:0:ffff:4179:4e8b
65.121.78.140 0:0:0:0:0:ffff:4179:4e8c
65.121.78.141 0:0:0:0:0:ffff:4179:4e8d
65.121.78.142 0:0:0:0:0:ffff:4179:4e8e
65.121.78.143 0:0:0:0:0:ffff:4179:4e8f
65.121.78.144 0:0:0:0:0:ffff:4179:4e90
65.121.78.145 0:0:0:0:0:ffff:4179:4e91
65.121.78.146 0:0:0:0:0:ffff:4179:4e92
65.121.78.147 0:0:0:0:0:ffff:4179:4e93
65.121.78.148 0:0:0:0:0:ffff:4179:4e94
65.121.78.149 0:0:0:0:0:ffff:4179:4e95
65.121.78.150 0:0:0:0:0:ffff:4179:4e96
65.121.78.151 0:0:0:0:0:ffff:4179:4e97
65.121.78.152 0:0:0:0:0:ffff:4179:4e98
65.121.78.153 0:0:0:0:0:ffff:4179:4e99
65.121.78.154 0:0:0:0:0:ffff:4179:4e9a
65.121.78.155 0:0:0:0:0:ffff:4179:4e9b
65.121.78.156 0:0:0:0:0:ffff:4179:4e9c
65.121.78.157 0:0:0:0:0:ffff:4179:4e9d
65.121.78.158 0:0:0:0:0:ffff:4179:4e9e
65.121.78.159 0:0:0:0:0:ffff:4179:4e9f
65.121.78.160 0:0:0:0:0:ffff:4179:4ea0
65.121.78.161 0:0:0:0:0:ffff:4179:4ea1
65.121.78.162 0:0:0:0:0:ffff:4179:4ea2
65.121.78.163 0:0:0:0:0:ffff:4179:4ea3
65.121.78.164 0:0:0:0:0:ffff:4179:4ea4
65.121.78.165 0:0:0:0:0:ffff:4179:4ea5
65.121.78.166 0:0:0:0:0:ffff:4179:4ea6
65.121.78.167 0:0:0:0:0:ffff:4179:4ea7
65.121.78.168 0:0:0:0:0:ffff:4179:4ea8
65.121.78.169 0:0:0:0:0:ffff:4179:4ea9
65.121.78.170 0:0:0:0:0:ffff:4179:4eaa
65.121.78.171 0:0:0:0:0:ffff:4179:4eab
65.121.78.172 0:0:0:0:0:ffff:4179:4eac
65.121.78.173 0:0:0:0:0:ffff:4179:4ead
65.121.78.174 0:0:0:0:0:ffff:4179:4eae
65.121.78.175 0:0:0:0:0:ffff:4179:4eaf
65.121.78.176 0:0:0:0:0:ffff:4179:4eb0
65.121.78.177 0:0:0:0:0:ffff:4179:4eb1
65.121.78.178 0:0:0:0:0:ffff:4179:4eb2
65.121.78.179 0:0:0:0:0:ffff:4179:4eb3
65.121.78.180 0:0:0:0:0:ffff:4179:4eb4


65.121.78.181 0:0:0:0:0:ffff:4179:4eb5
65.121.78.182 0:0:0:0:0:ffff:4179:4eb6
65.121.78.183 0:0:0:0:0:ffff:4179:4eb7
65.121.78.184 0:0:0:0:0:ffff:4179:4eb8
65.121.78.185 0:0:0:0:0:ffff:4179:4eb9
65.121.78.186 0:0:0:0:0:ffff:4179:4eba
65.121.78.187 0:0:0:0:0:ffff:4179:4ebb
65.121.78.188 0:0:0:0:0:ffff:4179:4ebc
65.121.78.189 0:0:0:0:0:ffff:4179:4ebd
65.121.78.190 0:0:0:0:0:ffff:4179:4ebe
65.121.78.191 0:0:0:0:0:ffff:4179:4ebf
65.121.78.192 0:0:0:0:0:ffff:4179:4ec0
65.121.78.193 0:0:0:0:0:ffff:4179:4ec1
65.121.78.194 0:0:0:0:0:ffff:4179:4ec2
65.121.78.195 0:0:0:0:0:ffff:4179:4ec3
65.121.78.196 0:0:0:0:0:ffff:4179:4ec4
65.121.78.197 0:0:0:0:0:ffff:4179:4ec5
65.121.78.198 0:0:0:0:0:ffff:4179:4ec6
65.121.78.199 0:0:0:0:0:ffff:4179:4ec7
65.121.78.200 0:0:0:0:0:ffff:4179:4ec8
65.121.78.201 0:0:0:0:0:ffff:4179:4ec9
65.121.78.202 0:0:0:0:0:ffff:4179:4eca
65.121.78.203 0:0:0:0:0:ffff:4179:4ecb
65.121.78.204 0:0:0:0:0:ffff:4179:4ecc
65.121.78.205 0:0:0:0:0:ffff:4179:4ecd
65.121.78.206 0:0:0:0:0:ffff:4179:4ece
65.121.78.207 0:0:0:0:0:ffff:4179:4ecf
65.121.78.208 0:0:0:0:0:ffff:4179:4ed0
65.121.78.209 0:0:0:0:0:ffff:4179:4ed1
65.121.78.210 0:0:0:0:0:ffff:4179:4ed2
65.121.78.211 0:0:0:0:0:ffff:4179:4ed3
65.121.78.212 0:0:0:0:0:ffff:4179:4ed4
65.121.78.213 0:0:0:0:0:ffff:4179:4ed5
65.121.78.214 0:0:0:0:0:ffff:4179:4ed6
65.121.78.215 0:0:0:0:0:ffff:4179:4ed7
65.121.78.216 0:0:0:0:0:ffff:4179:4ed8
65.121.78.217 0:0:0:0:0:ffff:4179:4ed9
65.121.78.218 0:0:0:0:0:ffff:4179:4eda
65.121.78.219 0:0:0:0:0:ffff:4179:4edb
65.121.78.220 0:0:0:0:0:ffff:4179:4edc
65.121.78.221 0:0:0:0:0:ffff:4179:4edd
65.121.78.222 0:0:0:0:0:ffff:4179:4ede
65.121.78.223 0:0:0:0:0:ffff:4179:4edf
65.121.78.224 0:0:0:0:0:ffff:4179:4ee0
65.121.78.225 0:0:0:0:0:ffff:4179:4ee1
65.121.78.226 0:0:0:0:0:ffff:4179:4ee2
65.121.78.227 0:0:0:0:0:ffff:4179:4ee3
65.121.78.228 0:0:0:0:0:ffff:4179:4ee4
65.121.78.229 0:0:0:0:0:ffff:4179:4ee5
65.121.78.230 0:0:0:0:0:ffff:4179:4ee6
65.121.78.231 0:0:0:0:0:ffff:4179:4ee7
65.121.78.232 0:0:0:0:0:ffff:4179:4ee8
65.121.78.233 0:0:0:0:0:ffff:4179:4ee9
65.121.78.234 0:0:0:0:0:ffff:4179:4eea
65.121.78.235 0:0:0:0:0:ffff:4179:4eeb
65.121.78.236 0:0:0:0:0:ffff:4179:4eec
65.121.78.237 0:0:0:0:0:ffff:4179:4eed
65.121.78.238 0:0:0:0:0:ffff:4179:4eee
65.121.78.239 0:0:0:0:0:ffff:4179:4eef
65.121.78.240 0:0:0:0:0:ffff:4179:4ef0
65.121.78.241 0:0:0:0:0:ffff:4179:4ef1
65.121.78.242 0:0:0:0:0:ffff:4179:4ef2
65.121.78.243 0:0:0:0:0:ffff:4179:4ef3
65.121.78.244 0:0:0:0:0:ffff:4179:4ef4
65.121.78.245 0:0:0:0:0:ffff:4179:4ef5
65.121.78.246 0:0:0:0:0:ffff:4179:4ef6
65.121.78.247 0:0:0:0:0:ffff:4179:4ef7
65.121.78.248 0:0:0:0:0:ffff:4179:4ef8
65.121.78.249 0:0:0:0:0:ffff:4179:4ef9
65.121.78.250 0:0:0:0:0:ffff:4179:4efa
65.121.78.251 0:0:0:0:0:ffff:4179:4efb
65.121.78.252 0:0:0:0:0:ffff:4179:4efc
65.121.78.253 0:0:0:0:0:ffff:4179:4efd
65.121.78.254 0:0:0:0:0:ffff:4179:4efe
65.121.78.255 0:0:0:0:0:ffff:4179:4eff


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.