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
65.121.45.1 0:0:0:0:0:ffff:4179:2d01
65.121.45.2 0:0:0:0:0:ffff:4179:2d02
65.121.45.3 0:0:0:0:0:ffff:4179:2d03
65.121.45.4 0:0:0:0:0:ffff:4179:2d04
65.121.45.5 0:0:0:0:0:ffff:4179:2d05
65.121.45.6 0:0:0:0:0:ffff:4179:2d06
65.121.45.7 0:0:0:0:0:ffff:4179:2d07
65.121.45.8 0:0:0:0:0:ffff:4179:2d08
65.121.45.9 0:0:0:0:0:ffff:4179:2d09
65.121.45.10 0:0:0:0:0:ffff:4179:2d0a
65.121.45.11 0:0:0:0:0:ffff:4179:2d0b
65.121.45.12 0:0:0:0:0:ffff:4179:2d0c
65.121.45.13 0:0:0:0:0:ffff:4179:2d0d
65.121.45.14 0:0:0:0:0:ffff:4179:2d0e
65.121.45.15 0:0:0:0:0:ffff:4179:2d0f
65.121.45.16 0:0:0:0:0:ffff:4179:2d10
65.121.45.17 0:0:0:0:0:ffff:4179:2d11
65.121.45.18 0:0:0:0:0:ffff:4179:2d12
65.121.45.19 0:0:0:0:0:ffff:4179:2d13
65.121.45.20 0:0:0:0:0:ffff:4179:2d14
65.121.45.21 0:0:0:0:0:ffff:4179:2d15
65.121.45.22 0:0:0:0:0:ffff:4179:2d16
65.121.45.23 0:0:0:0:0:ffff:4179:2d17
65.121.45.24 0:0:0:0:0:ffff:4179:2d18
65.121.45.25 0:0:0:0:0:ffff:4179:2d19
65.121.45.26 0:0:0:0:0:ffff:4179:2d1a
65.121.45.27 0:0:0:0:0:ffff:4179:2d1b
65.121.45.28 0:0:0:0:0:ffff:4179:2d1c
65.121.45.29 0:0:0:0:0:ffff:4179:2d1d
65.121.45.30 0:0:0:0:0:ffff:4179:2d1e
65.121.45.31 0:0:0:0:0:ffff:4179:2d1f
65.121.45.32 0:0:0:0:0:ffff:4179:2d20
65.121.45.33 0:0:0:0:0:ffff:4179:2d21
65.121.45.34 0:0:0:0:0:ffff:4179:2d22
65.121.45.35 0:0:0:0:0:ffff:4179:2d23
65.121.45.36 0:0:0:0:0:ffff:4179:2d24
65.121.45.37 0:0:0:0:0:ffff:4179:2d25
65.121.45.38 0:0:0:0:0:ffff:4179:2d26
65.121.45.39 0:0:0:0:0:ffff:4179:2d27
65.121.45.40 0:0:0:0:0:ffff:4179:2d28
65.121.45.41 0:0:0:0:0:ffff:4179:2d29
65.121.45.42 0:0:0:0:0:ffff:4179:2d2a
65.121.45.43 0:0:0:0:0:ffff:4179:2d2b
65.121.45.44 0:0:0:0:0:ffff:4179:2d2c
65.121.45.45 0:0:0:0:0:ffff:4179:2d2d
65.121.45.46 0:0:0:0:0:ffff:4179:2d2e
65.121.45.47 0:0:0:0:0:ffff:4179:2d2f
65.121.45.48 0:0:0:0:0:ffff:4179:2d30
65.121.45.49 0:0:0:0:0:ffff:4179:2d31
65.121.45.50 0:0:0:0:0:ffff:4179:2d32
65.121.45.51 0:0:0:0:0:ffff:4179:2d33
65.121.45.52 0:0:0:0:0:ffff:4179:2d34
65.121.45.53 0:0:0:0:0:ffff:4179:2d35
65.121.45.54 0:0:0:0:0:ffff:4179:2d36
65.121.45.55 0:0:0:0:0:ffff:4179:2d37
65.121.45.56 0:0:0:0:0:ffff:4179:2d38
65.121.45.57 0:0:0:0:0:ffff:4179:2d39
65.121.45.58 0:0:0:0:0:ffff:4179:2d3a
65.121.45.59 0:0:0:0:0:ffff:4179:2d3b
65.121.45.60 0:0:0:0:0:ffff:4179:2d3c


65.121.45.61 0:0:0:0:0:ffff:4179:2d3d
65.121.45.62 0:0:0:0:0:ffff:4179:2d3e
65.121.45.63 0:0:0:0:0:ffff:4179:2d3f
65.121.45.64 0:0:0:0:0:ffff:4179:2d40
65.121.45.65 0:0:0:0:0:ffff:4179:2d41
65.121.45.66 0:0:0:0:0:ffff:4179:2d42
65.121.45.67 0:0:0:0:0:ffff:4179:2d43
65.121.45.68 0:0:0:0:0:ffff:4179:2d44
65.121.45.69 0:0:0:0:0:ffff:4179:2d45
65.121.45.70 0:0:0:0:0:ffff:4179:2d46
65.121.45.71 0:0:0:0:0:ffff:4179:2d47
65.121.45.72 0:0:0:0:0:ffff:4179:2d48
65.121.45.73 0:0:0:0:0:ffff:4179:2d49
65.121.45.74 0:0:0:0:0:ffff:4179:2d4a
65.121.45.75 0:0:0:0:0:ffff:4179:2d4b
65.121.45.76 0:0:0:0:0:ffff:4179:2d4c
65.121.45.77 0:0:0:0:0:ffff:4179:2d4d
65.121.45.78 0:0:0:0:0:ffff:4179:2d4e
65.121.45.79 0:0:0:0:0:ffff:4179:2d4f
65.121.45.80 0:0:0:0:0:ffff:4179:2d50
65.121.45.81 0:0:0:0:0:ffff:4179:2d51
65.121.45.82 0:0:0:0:0:ffff:4179:2d52
65.121.45.83 0:0:0:0:0:ffff:4179:2d53
65.121.45.84 0:0:0:0:0:ffff:4179:2d54
65.121.45.85 0:0:0:0:0:ffff:4179:2d55
65.121.45.86 0:0:0:0:0:ffff:4179:2d56
65.121.45.87 0:0:0:0:0:ffff:4179:2d57
65.121.45.88 0:0:0:0:0:ffff:4179:2d58
65.121.45.89 0:0:0:0:0:ffff:4179:2d59
65.121.45.90 0:0:0:0:0:ffff:4179:2d5a
65.121.45.91 0:0:0:0:0:ffff:4179:2d5b
65.121.45.92 0:0:0:0:0:ffff:4179:2d5c
65.121.45.93 0:0:0:0:0:ffff:4179:2d5d
65.121.45.94 0:0:0:0:0:ffff:4179:2d5e
65.121.45.95 0:0:0:0:0:ffff:4179:2d5f
65.121.45.96 0:0:0:0:0:ffff:4179:2d60
65.121.45.97 0:0:0:0:0:ffff:4179:2d61
65.121.45.98 0:0:0:0:0:ffff:4179:2d62
65.121.45.99 0:0:0:0:0:ffff:4179:2d63
65.121.45.100 0:0:0:0:0:ffff:4179:2d64
65.121.45.101 0:0:0:0:0:ffff:4179:2d65
65.121.45.102 0:0:0:0:0:ffff:4179:2d66
65.121.45.103 0:0:0:0:0:ffff:4179:2d67
65.121.45.104 0:0:0:0:0:ffff:4179:2d68
65.121.45.105 0:0:0:0:0:ffff:4179:2d69
65.121.45.106 0:0:0:0:0:ffff:4179:2d6a
65.121.45.107 0:0:0:0:0:ffff:4179:2d6b
65.121.45.108 0:0:0:0:0:ffff:4179:2d6c
65.121.45.109 0:0:0:0:0:ffff:4179:2d6d
65.121.45.110 0:0:0:0:0:ffff:4179:2d6e
65.121.45.111 0:0:0:0:0:ffff:4179:2d6f
65.121.45.112 0:0:0:0:0:ffff:4179:2d70
65.121.45.113 0:0:0:0:0:ffff:4179:2d71
65.121.45.114 0:0:0:0:0:ffff:4179:2d72
65.121.45.115 0:0:0:0:0:ffff:4179:2d73
65.121.45.116 0:0:0:0:0:ffff:4179:2d74
65.121.45.117 0:0:0:0:0:ffff:4179:2d75
65.121.45.118 0:0:0:0:0:ffff:4179:2d76
65.121.45.119 0:0:0:0:0:ffff:4179:2d77
65.121.45.120 0:0:0:0:0:ffff:4179:2d78


65.121.45.121 0:0:0:0:0:ffff:4179:2d79
65.121.45.122 0:0:0:0:0:ffff:4179:2d7a
65.121.45.123 0:0:0:0:0:ffff:4179:2d7b
65.121.45.124 0:0:0:0:0:ffff:4179:2d7c
65.121.45.125 0:0:0:0:0:ffff:4179:2d7d
65.121.45.126 0:0:0:0:0:ffff:4179:2d7e
65.121.45.127 0:0:0:0:0:ffff:4179:2d7f
65.121.45.128 0:0:0:0:0:ffff:4179:2d80
65.121.45.129 0:0:0:0:0:ffff:4179:2d81
65.121.45.130 0:0:0:0:0:ffff:4179:2d82
65.121.45.131 0:0:0:0:0:ffff:4179:2d83
65.121.45.132 0:0:0:0:0:ffff:4179:2d84
65.121.45.133 0:0:0:0:0:ffff:4179:2d85
65.121.45.134 0:0:0:0:0:ffff:4179:2d86
65.121.45.135 0:0:0:0:0:ffff:4179:2d87
65.121.45.136 0:0:0:0:0:ffff:4179:2d88
65.121.45.137 0:0:0:0:0:ffff:4179:2d89
65.121.45.138 0:0:0:0:0:ffff:4179:2d8a
65.121.45.139 0:0:0:0:0:ffff:4179:2d8b
65.121.45.140 0:0:0:0:0:ffff:4179:2d8c
65.121.45.141 0:0:0:0:0:ffff:4179:2d8d
65.121.45.142 0:0:0:0:0:ffff:4179:2d8e
65.121.45.143 0:0:0:0:0:ffff:4179:2d8f
65.121.45.144 0:0:0:0:0:ffff:4179:2d90
65.121.45.145 0:0:0:0:0:ffff:4179:2d91
65.121.45.146 0:0:0:0:0:ffff:4179:2d92
65.121.45.147 0:0:0:0:0:ffff:4179:2d93
65.121.45.148 0:0:0:0:0:ffff:4179:2d94
65.121.45.149 0:0:0:0:0:ffff:4179:2d95
65.121.45.150 0:0:0:0:0:ffff:4179:2d96
65.121.45.151 0:0:0:0:0:ffff:4179:2d97
65.121.45.152 0:0:0:0:0:ffff:4179:2d98
65.121.45.153 0:0:0:0:0:ffff:4179:2d99
65.121.45.154 0:0:0:0:0:ffff:4179:2d9a
65.121.45.155 0:0:0:0:0:ffff:4179:2d9b
65.121.45.156 0:0:0:0:0:ffff:4179:2d9c
65.121.45.157 0:0:0:0:0:ffff:4179:2d9d
65.121.45.158 0:0:0:0:0:ffff:4179:2d9e
65.121.45.159 0:0:0:0:0:ffff:4179:2d9f
65.121.45.160 0:0:0:0:0:ffff:4179:2da0
65.121.45.161 0:0:0:0:0:ffff:4179:2da1
65.121.45.162 0:0:0:0:0:ffff:4179:2da2
65.121.45.163 0:0:0:0:0:ffff:4179:2da3
65.121.45.164 0:0:0:0:0:ffff:4179:2da4
65.121.45.165 0:0:0:0:0:ffff:4179:2da5
65.121.45.166 0:0:0:0:0:ffff:4179:2da6
65.121.45.167 0:0:0:0:0:ffff:4179:2da7
65.121.45.168 0:0:0:0:0:ffff:4179:2da8
65.121.45.169 0:0:0:0:0:ffff:4179:2da9
65.121.45.170 0:0:0:0:0:ffff:4179:2daa
65.121.45.171 0:0:0:0:0:ffff:4179:2dab
65.121.45.172 0:0:0:0:0:ffff:4179:2dac
65.121.45.173 0:0:0:0:0:ffff:4179:2dad
65.121.45.174 0:0:0:0:0:ffff:4179:2dae
65.121.45.175 0:0:0:0:0:ffff:4179:2daf
65.121.45.176 0:0:0:0:0:ffff:4179:2db0
65.121.45.177 0:0:0:0:0:ffff:4179:2db1
65.121.45.178 0:0:0:0:0:ffff:4179:2db2
65.121.45.179 0:0:0:0:0:ffff:4179:2db3
65.121.45.180 0:0:0:0:0:ffff:4179:2db4


65.121.45.181 0:0:0:0:0:ffff:4179:2db5
65.121.45.182 0:0:0:0:0:ffff:4179:2db6
65.121.45.183 0:0:0:0:0:ffff:4179:2db7
65.121.45.184 0:0:0:0:0:ffff:4179:2db8
65.121.45.185 0:0:0:0:0:ffff:4179:2db9
65.121.45.186 0:0:0:0:0:ffff:4179:2dba
65.121.45.187 0:0:0:0:0:ffff:4179:2dbb
65.121.45.188 0:0:0:0:0:ffff:4179:2dbc
65.121.45.189 0:0:0:0:0:ffff:4179:2dbd
65.121.45.190 0:0:0:0:0:ffff:4179:2dbe
65.121.45.191 0:0:0:0:0:ffff:4179:2dbf
65.121.45.192 0:0:0:0:0:ffff:4179:2dc0
65.121.45.193 0:0:0:0:0:ffff:4179:2dc1
65.121.45.194 0:0:0:0:0:ffff:4179:2dc2
65.121.45.195 0:0:0:0:0:ffff:4179:2dc3
65.121.45.196 0:0:0:0:0:ffff:4179:2dc4
65.121.45.197 0:0:0:0:0:ffff:4179:2dc5
65.121.45.198 0:0:0:0:0:ffff:4179:2dc6
65.121.45.199 0:0:0:0:0:ffff:4179:2dc7
65.121.45.200 0:0:0:0:0:ffff:4179:2dc8
65.121.45.201 0:0:0:0:0:ffff:4179:2dc9
65.121.45.202 0:0:0:0:0:ffff:4179:2dca
65.121.45.203 0:0:0:0:0:ffff:4179:2dcb
65.121.45.204 0:0:0:0:0:ffff:4179:2dcc
65.121.45.205 0:0:0:0:0:ffff:4179:2dcd
65.121.45.206 0:0:0:0:0:ffff:4179:2dce
65.121.45.207 0:0:0:0:0:ffff:4179:2dcf
65.121.45.208 0:0:0:0:0:ffff:4179:2dd0
65.121.45.209 0:0:0:0:0:ffff:4179:2dd1
65.121.45.210 0:0:0:0:0:ffff:4179:2dd2
65.121.45.211 0:0:0:0:0:ffff:4179:2dd3
65.121.45.212 0:0:0:0:0:ffff:4179:2dd4
65.121.45.213 0:0:0:0:0:ffff:4179:2dd5
65.121.45.214 0:0:0:0:0:ffff:4179:2dd6
65.121.45.215 0:0:0:0:0:ffff:4179:2dd7
65.121.45.216 0:0:0:0:0:ffff:4179:2dd8
65.121.45.217 0:0:0:0:0:ffff:4179:2dd9
65.121.45.218 0:0:0:0:0:ffff:4179:2dda
65.121.45.219 0:0:0:0:0:ffff:4179:2ddb
65.121.45.220 0:0:0:0:0:ffff:4179:2ddc
65.121.45.221 0:0:0:0:0:ffff:4179:2ddd
65.121.45.222 0:0:0:0:0:ffff:4179:2dde
65.121.45.223 0:0:0:0:0:ffff:4179:2ddf
65.121.45.224 0:0:0:0:0:ffff:4179:2de0
65.121.45.225 0:0:0:0:0:ffff:4179:2de1
65.121.45.226 0:0:0:0:0:ffff:4179:2de2
65.121.45.227 0:0:0:0:0:ffff:4179:2de3
65.121.45.228 0:0:0:0:0:ffff:4179:2de4
65.121.45.229 0:0:0:0:0:ffff:4179:2de5
65.121.45.230 0:0:0:0:0:ffff:4179:2de6
65.121.45.231 0:0:0:0:0:ffff:4179:2de7
65.121.45.232 0:0:0:0:0:ffff:4179:2de8
65.121.45.233 0:0:0:0:0:ffff:4179:2de9
65.121.45.234 0:0:0:0:0:ffff:4179:2dea
65.121.45.235 0:0:0:0:0:ffff:4179:2deb
65.121.45.236 0:0:0:0:0:ffff:4179:2dec
65.121.45.237 0:0:0:0:0:ffff:4179:2ded
65.121.45.238 0:0:0:0:0:ffff:4179:2dee
65.121.45.239 0:0:0:0:0:ffff:4179:2def
65.121.45.240 0:0:0:0:0:ffff:4179:2df0
65.121.45.241 0:0:0:0:0:ffff:4179:2df1
65.121.45.242 0:0:0:0:0:ffff:4179:2df2
65.121.45.243 0:0:0:0:0:ffff:4179:2df3
65.121.45.244 0:0:0:0:0:ffff:4179:2df4
65.121.45.245 0:0:0:0:0:ffff:4179:2df5
65.121.45.246 0:0:0:0:0:ffff:4179:2df6
65.121.45.247 0:0:0:0:0:ffff:4179:2df7
65.121.45.248 0:0:0:0:0:ffff:4179:2df8
65.121.45.249 0:0:0:0:0:ffff:4179:2df9
65.121.45.250 0:0:0:0:0:ffff:4179:2dfa
65.121.45.251 0:0:0:0:0:ffff:4179:2dfb
65.121.45.252 0:0:0:0:0:ffff:4179:2dfc
65.121.45.253 0:0:0:0:0:ffff:4179:2dfd
65.121.45.254 0:0:0:0:0:ffff:4179:2dfe
65.121.45.255 0:0:0:0:0:ffff:4179:2dff


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.