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
151.123.141.1 0:0:0:0:0:ffff:977b:8d01
151.123.141.2 0:0:0:0:0:ffff:977b:8d02
151.123.141.3 0:0:0:0:0:ffff:977b:8d03
151.123.141.4 0:0:0:0:0:ffff:977b:8d04
151.123.141.5 0:0:0:0:0:ffff:977b:8d05
151.123.141.6 0:0:0:0:0:ffff:977b:8d06
151.123.141.7 0:0:0:0:0:ffff:977b:8d07
151.123.141.8 0:0:0:0:0:ffff:977b:8d08
151.123.141.9 0:0:0:0:0:ffff:977b:8d09
151.123.141.10 0:0:0:0:0:ffff:977b:8d0a
151.123.141.11 0:0:0:0:0:ffff:977b:8d0b
151.123.141.12 0:0:0:0:0:ffff:977b:8d0c
151.123.141.13 0:0:0:0:0:ffff:977b:8d0d
151.123.141.14 0:0:0:0:0:ffff:977b:8d0e
151.123.141.15 0:0:0:0:0:ffff:977b:8d0f
151.123.141.16 0:0:0:0:0:ffff:977b:8d10
151.123.141.17 0:0:0:0:0:ffff:977b:8d11
151.123.141.18 0:0:0:0:0:ffff:977b:8d12
151.123.141.19 0:0:0:0:0:ffff:977b:8d13
151.123.141.20 0:0:0:0:0:ffff:977b:8d14
151.123.141.21 0:0:0:0:0:ffff:977b:8d15
151.123.141.22 0:0:0:0:0:ffff:977b:8d16
151.123.141.23 0:0:0:0:0:ffff:977b:8d17
151.123.141.24 0:0:0:0:0:ffff:977b:8d18
151.123.141.25 0:0:0:0:0:ffff:977b:8d19
151.123.141.26 0:0:0:0:0:ffff:977b:8d1a
151.123.141.27 0:0:0:0:0:ffff:977b:8d1b
151.123.141.28 0:0:0:0:0:ffff:977b:8d1c
151.123.141.29 0:0:0:0:0:ffff:977b:8d1d
151.123.141.30 0:0:0:0:0:ffff:977b:8d1e
151.123.141.31 0:0:0:0:0:ffff:977b:8d1f
151.123.141.32 0:0:0:0:0:ffff:977b:8d20
151.123.141.33 0:0:0:0:0:ffff:977b:8d21
151.123.141.34 0:0:0:0:0:ffff:977b:8d22
151.123.141.35 0:0:0:0:0:ffff:977b:8d23
151.123.141.36 0:0:0:0:0:ffff:977b:8d24
151.123.141.37 0:0:0:0:0:ffff:977b:8d25
151.123.141.38 0:0:0:0:0:ffff:977b:8d26
151.123.141.39 0:0:0:0:0:ffff:977b:8d27
151.123.141.40 0:0:0:0:0:ffff:977b:8d28
151.123.141.41 0:0:0:0:0:ffff:977b:8d29
151.123.141.42 0:0:0:0:0:ffff:977b:8d2a
151.123.141.43 0:0:0:0:0:ffff:977b:8d2b
151.123.141.44 0:0:0:0:0:ffff:977b:8d2c
151.123.141.45 0:0:0:0:0:ffff:977b:8d2d
151.123.141.46 0:0:0:0:0:ffff:977b:8d2e
151.123.141.47 0:0:0:0:0:ffff:977b:8d2f
151.123.141.48 0:0:0:0:0:ffff:977b:8d30
151.123.141.49 0:0:0:0:0:ffff:977b:8d31
151.123.141.50 0:0:0:0:0:ffff:977b:8d32
151.123.141.51 0:0:0:0:0:ffff:977b:8d33
151.123.141.52 0:0:0:0:0:ffff:977b:8d34
151.123.141.53 0:0:0:0:0:ffff:977b:8d35
151.123.141.54 0:0:0:0:0:ffff:977b:8d36
151.123.141.55 0:0:0:0:0:ffff:977b:8d37
151.123.141.56 0:0:0:0:0:ffff:977b:8d38
151.123.141.57 0:0:0:0:0:ffff:977b:8d39
151.123.141.58 0:0:0:0:0:ffff:977b:8d3a
151.123.141.59 0:0:0:0:0:ffff:977b:8d3b
151.123.141.60 0:0:0:0:0:ffff:977b:8d3c


151.123.141.61 0:0:0:0:0:ffff:977b:8d3d
151.123.141.62 0:0:0:0:0:ffff:977b:8d3e
151.123.141.63 0:0:0:0:0:ffff:977b:8d3f
151.123.141.64 0:0:0:0:0:ffff:977b:8d40
151.123.141.65 0:0:0:0:0:ffff:977b:8d41
151.123.141.66 0:0:0:0:0:ffff:977b:8d42
151.123.141.67 0:0:0:0:0:ffff:977b:8d43
151.123.141.68 0:0:0:0:0:ffff:977b:8d44
151.123.141.69 0:0:0:0:0:ffff:977b:8d45
151.123.141.70 0:0:0:0:0:ffff:977b:8d46
151.123.141.71 0:0:0:0:0:ffff:977b:8d47
151.123.141.72 0:0:0:0:0:ffff:977b:8d48
151.123.141.73 0:0:0:0:0:ffff:977b:8d49
151.123.141.74 0:0:0:0:0:ffff:977b:8d4a
151.123.141.75 0:0:0:0:0:ffff:977b:8d4b
151.123.141.76 0:0:0:0:0:ffff:977b:8d4c
151.123.141.77 0:0:0:0:0:ffff:977b:8d4d
151.123.141.78 0:0:0:0:0:ffff:977b:8d4e
151.123.141.79 0:0:0:0:0:ffff:977b:8d4f
151.123.141.80 0:0:0:0:0:ffff:977b:8d50
151.123.141.81 0:0:0:0:0:ffff:977b:8d51
151.123.141.82 0:0:0:0:0:ffff:977b:8d52
151.123.141.83 0:0:0:0:0:ffff:977b:8d53
151.123.141.84 0:0:0:0:0:ffff:977b:8d54
151.123.141.85 0:0:0:0:0:ffff:977b:8d55
151.123.141.86 0:0:0:0:0:ffff:977b:8d56
151.123.141.87 0:0:0:0:0:ffff:977b:8d57
151.123.141.88 0:0:0:0:0:ffff:977b:8d58
151.123.141.89 0:0:0:0:0:ffff:977b:8d59
151.123.141.90 0:0:0:0:0:ffff:977b:8d5a
151.123.141.91 0:0:0:0:0:ffff:977b:8d5b
151.123.141.92 0:0:0:0:0:ffff:977b:8d5c
151.123.141.93 0:0:0:0:0:ffff:977b:8d5d
151.123.141.94 0:0:0:0:0:ffff:977b:8d5e
151.123.141.95 0:0:0:0:0:ffff:977b:8d5f
151.123.141.96 0:0:0:0:0:ffff:977b:8d60
151.123.141.97 0:0:0:0:0:ffff:977b:8d61
151.123.141.98 0:0:0:0:0:ffff:977b:8d62
151.123.141.99 0:0:0:0:0:ffff:977b:8d63
151.123.141.100 0:0:0:0:0:ffff:977b:8d64
151.123.141.101 0:0:0:0:0:ffff:977b:8d65
151.123.141.102 0:0:0:0:0:ffff:977b:8d66
151.123.141.103 0:0:0:0:0:ffff:977b:8d67
151.123.141.104 0:0:0:0:0:ffff:977b:8d68
151.123.141.105 0:0:0:0:0:ffff:977b:8d69
151.123.141.106 0:0:0:0:0:ffff:977b:8d6a
151.123.141.107 0:0:0:0:0:ffff:977b:8d6b
151.123.141.108 0:0:0:0:0:ffff:977b:8d6c
151.123.141.109 0:0:0:0:0:ffff:977b:8d6d
151.123.141.110 0:0:0:0:0:ffff:977b:8d6e
151.123.141.111 0:0:0:0:0:ffff:977b:8d6f
151.123.141.112 0:0:0:0:0:ffff:977b:8d70
151.123.141.113 0:0:0:0:0:ffff:977b:8d71
151.123.141.114 0:0:0:0:0:ffff:977b:8d72
151.123.141.115 0:0:0:0:0:ffff:977b:8d73
151.123.141.116 0:0:0:0:0:ffff:977b:8d74
151.123.141.117 0:0:0:0:0:ffff:977b:8d75
151.123.141.118 0:0:0:0:0:ffff:977b:8d76
151.123.141.119 0:0:0:0:0:ffff:977b:8d77
151.123.141.120 0:0:0:0:0:ffff:977b:8d78


151.123.141.121 0:0:0:0:0:ffff:977b:8d79
151.123.141.122 0:0:0:0:0:ffff:977b:8d7a
151.123.141.123 0:0:0:0:0:ffff:977b:8d7b
151.123.141.124 0:0:0:0:0:ffff:977b:8d7c
151.123.141.125 0:0:0:0:0:ffff:977b:8d7d
151.123.141.126 0:0:0:0:0:ffff:977b:8d7e
151.123.141.127 0:0:0:0:0:ffff:977b:8d7f
151.123.141.128 0:0:0:0:0:ffff:977b:8d80
151.123.141.129 0:0:0:0:0:ffff:977b:8d81
151.123.141.130 0:0:0:0:0:ffff:977b:8d82
151.123.141.131 0:0:0:0:0:ffff:977b:8d83
151.123.141.132 0:0:0:0:0:ffff:977b:8d84
151.123.141.133 0:0:0:0:0:ffff:977b:8d85
151.123.141.134 0:0:0:0:0:ffff:977b:8d86
151.123.141.135 0:0:0:0:0:ffff:977b:8d87
151.123.141.136 0:0:0:0:0:ffff:977b:8d88
151.123.141.137 0:0:0:0:0:ffff:977b:8d89
151.123.141.138 0:0:0:0:0:ffff:977b:8d8a
151.123.141.139 0:0:0:0:0:ffff:977b:8d8b
151.123.141.140 0:0:0:0:0:ffff:977b:8d8c
151.123.141.141 0:0:0:0:0:ffff:977b:8d8d
151.123.141.142 0:0:0:0:0:ffff:977b:8d8e
151.123.141.143 0:0:0:0:0:ffff:977b:8d8f
151.123.141.144 0:0:0:0:0:ffff:977b:8d90
151.123.141.145 0:0:0:0:0:ffff:977b:8d91
151.123.141.146 0:0:0:0:0:ffff:977b:8d92
151.123.141.147 0:0:0:0:0:ffff:977b:8d93
151.123.141.148 0:0:0:0:0:ffff:977b:8d94
151.123.141.149 0:0:0:0:0:ffff:977b:8d95
151.123.141.150 0:0:0:0:0:ffff:977b:8d96
151.123.141.151 0:0:0:0:0:ffff:977b:8d97
151.123.141.152 0:0:0:0:0:ffff:977b:8d98
151.123.141.153 0:0:0:0:0:ffff:977b:8d99
151.123.141.154 0:0:0:0:0:ffff:977b:8d9a
151.123.141.155 0:0:0:0:0:ffff:977b:8d9b
151.123.141.156 0:0:0:0:0:ffff:977b:8d9c
151.123.141.157 0:0:0:0:0:ffff:977b:8d9d
151.123.141.158 0:0:0:0:0:ffff:977b:8d9e
151.123.141.159 0:0:0:0:0:ffff:977b:8d9f
151.123.141.160 0:0:0:0:0:ffff:977b:8da0
151.123.141.161 0:0:0:0:0:ffff:977b:8da1
151.123.141.162 0:0:0:0:0:ffff:977b:8da2
151.123.141.163 0:0:0:0:0:ffff:977b:8da3
151.123.141.164 0:0:0:0:0:ffff:977b:8da4
151.123.141.165 0:0:0:0:0:ffff:977b:8da5
151.123.141.166 0:0:0:0:0:ffff:977b:8da6
151.123.141.167 0:0:0:0:0:ffff:977b:8da7
151.123.141.168 0:0:0:0:0:ffff:977b:8da8
151.123.141.169 0:0:0:0:0:ffff:977b:8da9
151.123.141.170 0:0:0:0:0:ffff:977b:8daa
151.123.141.171 0:0:0:0:0:ffff:977b:8dab
151.123.141.172 0:0:0:0:0:ffff:977b:8dac
151.123.141.173 0:0:0:0:0:ffff:977b:8dad
151.123.141.174 0:0:0:0:0:ffff:977b:8dae
151.123.141.175 0:0:0:0:0:ffff:977b:8daf
151.123.141.176 0:0:0:0:0:ffff:977b:8db0
151.123.141.177 0:0:0:0:0:ffff:977b:8db1
151.123.141.178 0:0:0:0:0:ffff:977b:8db2
151.123.141.179 0:0:0:0:0:ffff:977b:8db3
151.123.141.180 0:0:0:0:0:ffff:977b:8db4


151.123.141.181 0:0:0:0:0:ffff:977b:8db5
151.123.141.182 0:0:0:0:0:ffff:977b:8db6
151.123.141.183 0:0:0:0:0:ffff:977b:8db7
151.123.141.184 0:0:0:0:0:ffff:977b:8db8
151.123.141.185 0:0:0:0:0:ffff:977b:8db9
151.123.141.186 0:0:0:0:0:ffff:977b:8dba
151.123.141.187 0:0:0:0:0:ffff:977b:8dbb
151.123.141.188 0:0:0:0:0:ffff:977b:8dbc
151.123.141.189 0:0:0:0:0:ffff:977b:8dbd
151.123.141.190 0:0:0:0:0:ffff:977b:8dbe
151.123.141.191 0:0:0:0:0:ffff:977b:8dbf
151.123.141.192 0:0:0:0:0:ffff:977b:8dc0
151.123.141.193 0:0:0:0:0:ffff:977b:8dc1
151.123.141.194 0:0:0:0:0:ffff:977b:8dc2
151.123.141.195 0:0:0:0:0:ffff:977b:8dc3
151.123.141.196 0:0:0:0:0:ffff:977b:8dc4
151.123.141.197 0:0:0:0:0:ffff:977b:8dc5
151.123.141.198 0:0:0:0:0:ffff:977b:8dc6
151.123.141.199 0:0:0:0:0:ffff:977b:8dc7
151.123.141.200 0:0:0:0:0:ffff:977b:8dc8
151.123.141.201 0:0:0:0:0:ffff:977b:8dc9
151.123.141.202 0:0:0:0:0:ffff:977b:8dca
151.123.141.203 0:0:0:0:0:ffff:977b:8dcb
151.123.141.204 0:0:0:0:0:ffff:977b:8dcc
151.123.141.205 0:0:0:0:0:ffff:977b:8dcd
151.123.141.206 0:0:0:0:0:ffff:977b:8dce
151.123.141.207 0:0:0:0:0:ffff:977b:8dcf
151.123.141.208 0:0:0:0:0:ffff:977b:8dd0
151.123.141.209 0:0:0:0:0:ffff:977b:8dd1
151.123.141.210 0:0:0:0:0:ffff:977b:8dd2
151.123.141.211 0:0:0:0:0:ffff:977b:8dd3
151.123.141.212 0:0:0:0:0:ffff:977b:8dd4
151.123.141.213 0:0:0:0:0:ffff:977b:8dd5
151.123.141.214 0:0:0:0:0:ffff:977b:8dd6
151.123.141.215 0:0:0:0:0:ffff:977b:8dd7
151.123.141.216 0:0:0:0:0:ffff:977b:8dd8
151.123.141.217 0:0:0:0:0:ffff:977b:8dd9
151.123.141.218 0:0:0:0:0:ffff:977b:8dda
151.123.141.219 0:0:0:0:0:ffff:977b:8ddb
151.123.141.220 0:0:0:0:0:ffff:977b:8ddc
151.123.141.221 0:0:0:0:0:ffff:977b:8ddd
151.123.141.222 0:0:0:0:0:ffff:977b:8dde
151.123.141.223 0:0:0:0:0:ffff:977b:8ddf
151.123.141.224 0:0:0:0:0:ffff:977b:8de0
151.123.141.225 0:0:0:0:0:ffff:977b:8de1
151.123.141.226 0:0:0:0:0:ffff:977b:8de2
151.123.141.227 0:0:0:0:0:ffff:977b:8de3
151.123.141.228 0:0:0:0:0:ffff:977b:8de4
151.123.141.229 0:0:0:0:0:ffff:977b:8de5
151.123.141.230 0:0:0:0:0:ffff:977b:8de6
151.123.141.231 0:0:0:0:0:ffff:977b:8de7
151.123.141.232 0:0:0:0:0:ffff:977b:8de8
151.123.141.233 0:0:0:0:0:ffff:977b:8de9
151.123.141.234 0:0:0:0:0:ffff:977b:8dea
151.123.141.235 0:0:0:0:0:ffff:977b:8deb
151.123.141.236 0:0:0:0:0:ffff:977b:8dec
151.123.141.237 0:0:0:0:0:ffff:977b:8ded
151.123.141.238 0:0:0:0:0:ffff:977b:8dee
151.123.141.239 0:0:0:0:0:ffff:977b:8def
151.123.141.240 0:0:0:0:0:ffff:977b:8df0
151.123.141.241 0:0:0:0:0:ffff:977b:8df1
151.123.141.242 0:0:0:0:0:ffff:977b:8df2
151.123.141.243 0:0:0:0:0:ffff:977b:8df3
151.123.141.244 0:0:0:0:0:ffff:977b:8df4
151.123.141.245 0:0:0:0:0:ffff:977b:8df5
151.123.141.246 0:0:0:0:0:ffff:977b:8df6
151.123.141.247 0:0:0:0:0:ffff:977b:8df7
151.123.141.248 0:0:0:0:0:ffff:977b:8df8
151.123.141.249 0:0:0:0:0:ffff:977b:8df9
151.123.141.250 0:0:0:0:0:ffff:977b:8dfa
151.123.141.251 0:0:0:0:0:ffff:977b:8dfb
151.123.141.252 0:0:0:0:0:ffff:977b:8dfc
151.123.141.253 0:0:0:0:0:ffff:977b:8dfd
151.123.141.254 0:0:0:0:0:ffff:977b:8dfe
151.123.141.255 0:0:0:0:0:ffff:977b:8dff


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.