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
42.152.123.1 0:0:0:0:0:ffff:2a98:7b01
42.152.123.2 0:0:0:0:0:ffff:2a98:7b02
42.152.123.3 0:0:0:0:0:ffff:2a98:7b03
42.152.123.4 0:0:0:0:0:ffff:2a98:7b04
42.152.123.5 0:0:0:0:0:ffff:2a98:7b05
42.152.123.6 0:0:0:0:0:ffff:2a98:7b06
42.152.123.7 0:0:0:0:0:ffff:2a98:7b07
42.152.123.8 0:0:0:0:0:ffff:2a98:7b08
42.152.123.9 0:0:0:0:0:ffff:2a98:7b09
42.152.123.10 0:0:0:0:0:ffff:2a98:7b0a
42.152.123.11 0:0:0:0:0:ffff:2a98:7b0b
42.152.123.12 0:0:0:0:0:ffff:2a98:7b0c
42.152.123.13 0:0:0:0:0:ffff:2a98:7b0d
42.152.123.14 0:0:0:0:0:ffff:2a98:7b0e
42.152.123.15 0:0:0:0:0:ffff:2a98:7b0f
42.152.123.16 0:0:0:0:0:ffff:2a98:7b10
42.152.123.17 0:0:0:0:0:ffff:2a98:7b11
42.152.123.18 0:0:0:0:0:ffff:2a98:7b12
42.152.123.19 0:0:0:0:0:ffff:2a98:7b13
42.152.123.20 0:0:0:0:0:ffff:2a98:7b14
42.152.123.21 0:0:0:0:0:ffff:2a98:7b15
42.152.123.22 0:0:0:0:0:ffff:2a98:7b16
42.152.123.23 0:0:0:0:0:ffff:2a98:7b17
42.152.123.24 0:0:0:0:0:ffff:2a98:7b18
42.152.123.25 0:0:0:0:0:ffff:2a98:7b19
42.152.123.26 0:0:0:0:0:ffff:2a98:7b1a
42.152.123.27 0:0:0:0:0:ffff:2a98:7b1b
42.152.123.28 0:0:0:0:0:ffff:2a98:7b1c
42.152.123.29 0:0:0:0:0:ffff:2a98:7b1d
42.152.123.30 0:0:0:0:0:ffff:2a98:7b1e
42.152.123.31 0:0:0:0:0:ffff:2a98:7b1f
42.152.123.32 0:0:0:0:0:ffff:2a98:7b20
42.152.123.33 0:0:0:0:0:ffff:2a98:7b21
42.152.123.34 0:0:0:0:0:ffff:2a98:7b22
42.152.123.35 0:0:0:0:0:ffff:2a98:7b23
42.152.123.36 0:0:0:0:0:ffff:2a98:7b24
42.152.123.37 0:0:0:0:0:ffff:2a98:7b25
42.152.123.38 0:0:0:0:0:ffff:2a98:7b26
42.152.123.39 0:0:0:0:0:ffff:2a98:7b27
42.152.123.40 0:0:0:0:0:ffff:2a98:7b28
42.152.123.41 0:0:0:0:0:ffff:2a98:7b29
42.152.123.42 0:0:0:0:0:ffff:2a98:7b2a
42.152.123.43 0:0:0:0:0:ffff:2a98:7b2b
42.152.123.44 0:0:0:0:0:ffff:2a98:7b2c
42.152.123.45 0:0:0:0:0:ffff:2a98:7b2d
42.152.123.46 0:0:0:0:0:ffff:2a98:7b2e
42.152.123.47 0:0:0:0:0:ffff:2a98:7b2f
42.152.123.48 0:0:0:0:0:ffff:2a98:7b30
42.152.123.49 0:0:0:0:0:ffff:2a98:7b31
42.152.123.50 0:0:0:0:0:ffff:2a98:7b32
42.152.123.51 0:0:0:0:0:ffff:2a98:7b33
42.152.123.52 0:0:0:0:0:ffff:2a98:7b34
42.152.123.53 0:0:0:0:0:ffff:2a98:7b35
42.152.123.54 0:0:0:0:0:ffff:2a98:7b36
42.152.123.55 0:0:0:0:0:ffff:2a98:7b37
42.152.123.56 0:0:0:0:0:ffff:2a98:7b38
42.152.123.57 0:0:0:0:0:ffff:2a98:7b39
42.152.123.58 0:0:0:0:0:ffff:2a98:7b3a
42.152.123.59 0:0:0:0:0:ffff:2a98:7b3b
42.152.123.60 0:0:0:0:0:ffff:2a98:7b3c


42.152.123.61 0:0:0:0:0:ffff:2a98:7b3d
42.152.123.62 0:0:0:0:0:ffff:2a98:7b3e
42.152.123.63 0:0:0:0:0:ffff:2a98:7b3f
42.152.123.64 0:0:0:0:0:ffff:2a98:7b40
42.152.123.65 0:0:0:0:0:ffff:2a98:7b41
42.152.123.66 0:0:0:0:0:ffff:2a98:7b42
42.152.123.67 0:0:0:0:0:ffff:2a98:7b43
42.152.123.68 0:0:0:0:0:ffff:2a98:7b44
42.152.123.69 0:0:0:0:0:ffff:2a98:7b45
42.152.123.70 0:0:0:0:0:ffff:2a98:7b46
42.152.123.71 0:0:0:0:0:ffff:2a98:7b47
42.152.123.72 0:0:0:0:0:ffff:2a98:7b48
42.152.123.73 0:0:0:0:0:ffff:2a98:7b49
42.152.123.74 0:0:0:0:0:ffff:2a98:7b4a
42.152.123.75 0:0:0:0:0:ffff:2a98:7b4b
42.152.123.76 0:0:0:0:0:ffff:2a98:7b4c
42.152.123.77 0:0:0:0:0:ffff:2a98:7b4d
42.152.123.78 0:0:0:0:0:ffff:2a98:7b4e
42.152.123.79 0:0:0:0:0:ffff:2a98:7b4f
42.152.123.80 0:0:0:0:0:ffff:2a98:7b50
42.152.123.81 0:0:0:0:0:ffff:2a98:7b51
42.152.123.82 0:0:0:0:0:ffff:2a98:7b52
42.152.123.83 0:0:0:0:0:ffff:2a98:7b53
42.152.123.84 0:0:0:0:0:ffff:2a98:7b54
42.152.123.85 0:0:0:0:0:ffff:2a98:7b55
42.152.123.86 0:0:0:0:0:ffff:2a98:7b56
42.152.123.87 0:0:0:0:0:ffff:2a98:7b57
42.152.123.88 0:0:0:0:0:ffff:2a98:7b58
42.152.123.89 0:0:0:0:0:ffff:2a98:7b59
42.152.123.90 0:0:0:0:0:ffff:2a98:7b5a
42.152.123.91 0:0:0:0:0:ffff:2a98:7b5b
42.152.123.92 0:0:0:0:0:ffff:2a98:7b5c
42.152.123.93 0:0:0:0:0:ffff:2a98:7b5d
42.152.123.94 0:0:0:0:0:ffff:2a98:7b5e
42.152.123.95 0:0:0:0:0:ffff:2a98:7b5f
42.152.123.96 0:0:0:0:0:ffff:2a98:7b60
42.152.123.97 0:0:0:0:0:ffff:2a98:7b61
42.152.123.98 0:0:0:0:0:ffff:2a98:7b62
42.152.123.99 0:0:0:0:0:ffff:2a98:7b63
42.152.123.100 0:0:0:0:0:ffff:2a98:7b64
42.152.123.101 0:0:0:0:0:ffff:2a98:7b65
42.152.123.102 0:0:0:0:0:ffff:2a98:7b66
42.152.123.103 0:0:0:0:0:ffff:2a98:7b67
42.152.123.104 0:0:0:0:0:ffff:2a98:7b68
42.152.123.105 0:0:0:0:0:ffff:2a98:7b69
42.152.123.106 0:0:0:0:0:ffff:2a98:7b6a
42.152.123.107 0:0:0:0:0:ffff:2a98:7b6b
42.152.123.108 0:0:0:0:0:ffff:2a98:7b6c
42.152.123.109 0:0:0:0:0:ffff:2a98:7b6d
42.152.123.110 0:0:0:0:0:ffff:2a98:7b6e
42.152.123.111 0:0:0:0:0:ffff:2a98:7b6f
42.152.123.112 0:0:0:0:0:ffff:2a98:7b70
42.152.123.113 0:0:0:0:0:ffff:2a98:7b71
42.152.123.114 0:0:0:0:0:ffff:2a98:7b72
42.152.123.115 0:0:0:0:0:ffff:2a98:7b73
42.152.123.116 0:0:0:0:0:ffff:2a98:7b74
42.152.123.117 0:0:0:0:0:ffff:2a98:7b75
42.152.123.118 0:0:0:0:0:ffff:2a98:7b76
42.152.123.119 0:0:0:0:0:ffff:2a98:7b77
42.152.123.120 0:0:0:0:0:ffff:2a98:7b78


42.152.123.121 0:0:0:0:0:ffff:2a98:7b79
42.152.123.122 0:0:0:0:0:ffff:2a98:7b7a
42.152.123.123 0:0:0:0:0:ffff:2a98:7b7b
42.152.123.124 0:0:0:0:0:ffff:2a98:7b7c
42.152.123.125 0:0:0:0:0:ffff:2a98:7b7d
42.152.123.126 0:0:0:0:0:ffff:2a98:7b7e
42.152.123.127 0:0:0:0:0:ffff:2a98:7b7f
42.152.123.128 0:0:0:0:0:ffff:2a98:7b80
42.152.123.129 0:0:0:0:0:ffff:2a98:7b81
42.152.123.130 0:0:0:0:0:ffff:2a98:7b82
42.152.123.131 0:0:0:0:0:ffff:2a98:7b83
42.152.123.132 0:0:0:0:0:ffff:2a98:7b84
42.152.123.133 0:0:0:0:0:ffff:2a98:7b85
42.152.123.134 0:0:0:0:0:ffff:2a98:7b86
42.152.123.135 0:0:0:0:0:ffff:2a98:7b87
42.152.123.136 0:0:0:0:0:ffff:2a98:7b88
42.152.123.137 0:0:0:0:0:ffff:2a98:7b89
42.152.123.138 0:0:0:0:0:ffff:2a98:7b8a
42.152.123.139 0:0:0:0:0:ffff:2a98:7b8b
42.152.123.140 0:0:0:0:0:ffff:2a98:7b8c
42.152.123.141 0:0:0:0:0:ffff:2a98:7b8d
42.152.123.142 0:0:0:0:0:ffff:2a98:7b8e
42.152.123.143 0:0:0:0:0:ffff:2a98:7b8f
42.152.123.144 0:0:0:0:0:ffff:2a98:7b90
42.152.123.145 0:0:0:0:0:ffff:2a98:7b91
42.152.123.146 0:0:0:0:0:ffff:2a98:7b92
42.152.123.147 0:0:0:0:0:ffff:2a98:7b93
42.152.123.148 0:0:0:0:0:ffff:2a98:7b94
42.152.123.149 0:0:0:0:0:ffff:2a98:7b95
42.152.123.150 0:0:0:0:0:ffff:2a98:7b96
42.152.123.151 0:0:0:0:0:ffff:2a98:7b97
42.152.123.152 0:0:0:0:0:ffff:2a98:7b98
42.152.123.153 0:0:0:0:0:ffff:2a98:7b99
42.152.123.154 0:0:0:0:0:ffff:2a98:7b9a
42.152.123.155 0:0:0:0:0:ffff:2a98:7b9b
42.152.123.156 0:0:0:0:0:ffff:2a98:7b9c
42.152.123.157 0:0:0:0:0:ffff:2a98:7b9d
42.152.123.158 0:0:0:0:0:ffff:2a98:7b9e
42.152.123.159 0:0:0:0:0:ffff:2a98:7b9f
42.152.123.160 0:0:0:0:0:ffff:2a98:7ba0
42.152.123.161 0:0:0:0:0:ffff:2a98:7ba1
42.152.123.162 0:0:0:0:0:ffff:2a98:7ba2
42.152.123.163 0:0:0:0:0:ffff:2a98:7ba3
42.152.123.164 0:0:0:0:0:ffff:2a98:7ba4
42.152.123.165 0:0:0:0:0:ffff:2a98:7ba5
42.152.123.166 0:0:0:0:0:ffff:2a98:7ba6
42.152.123.167 0:0:0:0:0:ffff:2a98:7ba7
42.152.123.168 0:0:0:0:0:ffff:2a98:7ba8
42.152.123.169 0:0:0:0:0:ffff:2a98:7ba9
42.152.123.170 0:0:0:0:0:ffff:2a98:7baa
42.152.123.171 0:0:0:0:0:ffff:2a98:7bab
42.152.123.172 0:0:0:0:0:ffff:2a98:7bac
42.152.123.173 0:0:0:0:0:ffff:2a98:7bad
42.152.123.174 0:0:0:0:0:ffff:2a98:7bae
42.152.123.175 0:0:0:0:0:ffff:2a98:7baf
42.152.123.176 0:0:0:0:0:ffff:2a98:7bb0
42.152.123.177 0:0:0:0:0:ffff:2a98:7bb1
42.152.123.178 0:0:0:0:0:ffff:2a98:7bb2
42.152.123.179 0:0:0:0:0:ffff:2a98:7bb3
42.152.123.180 0:0:0:0:0:ffff:2a98:7bb4


42.152.123.181 0:0:0:0:0:ffff:2a98:7bb5
42.152.123.182 0:0:0:0:0:ffff:2a98:7bb6
42.152.123.183 0:0:0:0:0:ffff:2a98:7bb7
42.152.123.184 0:0:0:0:0:ffff:2a98:7bb8
42.152.123.185 0:0:0:0:0:ffff:2a98:7bb9
42.152.123.186 0:0:0:0:0:ffff:2a98:7bba
42.152.123.187 0:0:0:0:0:ffff:2a98:7bbb
42.152.123.188 0:0:0:0:0:ffff:2a98:7bbc
42.152.123.189 0:0:0:0:0:ffff:2a98:7bbd
42.152.123.190 0:0:0:0:0:ffff:2a98:7bbe
42.152.123.191 0:0:0:0:0:ffff:2a98:7bbf
42.152.123.192 0:0:0:0:0:ffff:2a98:7bc0
42.152.123.193 0:0:0:0:0:ffff:2a98:7bc1
42.152.123.194 0:0:0:0:0:ffff:2a98:7bc2
42.152.123.195 0:0:0:0:0:ffff:2a98:7bc3
42.152.123.196 0:0:0:0:0:ffff:2a98:7bc4
42.152.123.197 0:0:0:0:0:ffff:2a98:7bc5
42.152.123.198 0:0:0:0:0:ffff:2a98:7bc6
42.152.123.199 0:0:0:0:0:ffff:2a98:7bc7
42.152.123.200 0:0:0:0:0:ffff:2a98:7bc8
42.152.123.201 0:0:0:0:0:ffff:2a98:7bc9
42.152.123.202 0:0:0:0:0:ffff:2a98:7bca
42.152.123.203 0:0:0:0:0:ffff:2a98:7bcb
42.152.123.204 0:0:0:0:0:ffff:2a98:7bcc
42.152.123.205 0:0:0:0:0:ffff:2a98:7bcd
42.152.123.206 0:0:0:0:0:ffff:2a98:7bce
42.152.123.207 0:0:0:0:0:ffff:2a98:7bcf
42.152.123.208 0:0:0:0:0:ffff:2a98:7bd0
42.152.123.209 0:0:0:0:0:ffff:2a98:7bd1
42.152.123.210 0:0:0:0:0:ffff:2a98:7bd2
42.152.123.211 0:0:0:0:0:ffff:2a98:7bd3
42.152.123.212 0:0:0:0:0:ffff:2a98:7bd4
42.152.123.213 0:0:0:0:0:ffff:2a98:7bd5
42.152.123.214 0:0:0:0:0:ffff:2a98:7bd6
42.152.123.215 0:0:0:0:0:ffff:2a98:7bd7
42.152.123.216 0:0:0:0:0:ffff:2a98:7bd8
42.152.123.217 0:0:0:0:0:ffff:2a98:7bd9
42.152.123.218 0:0:0:0:0:ffff:2a98:7bda
42.152.123.219 0:0:0:0:0:ffff:2a98:7bdb
42.152.123.220 0:0:0:0:0:ffff:2a98:7bdc
42.152.123.221 0:0:0:0:0:ffff:2a98:7bdd
42.152.123.222 0:0:0:0:0:ffff:2a98:7bde
42.152.123.223 0:0:0:0:0:ffff:2a98:7bdf
42.152.123.224 0:0:0:0:0:ffff:2a98:7be0
42.152.123.225 0:0:0:0:0:ffff:2a98:7be1
42.152.123.226 0:0:0:0:0:ffff:2a98:7be2
42.152.123.227 0:0:0:0:0:ffff:2a98:7be3
42.152.123.228 0:0:0:0:0:ffff:2a98:7be4
42.152.123.229 0:0:0:0:0:ffff:2a98:7be5
42.152.123.230 0:0:0:0:0:ffff:2a98:7be6
42.152.123.231 0:0:0:0:0:ffff:2a98:7be7
42.152.123.232 0:0:0:0:0:ffff:2a98:7be8
42.152.123.233 0:0:0:0:0:ffff:2a98:7be9
42.152.123.234 0:0:0:0:0:ffff:2a98:7bea
42.152.123.235 0:0:0:0:0:ffff:2a98:7beb
42.152.123.236 0:0:0:0:0:ffff:2a98:7bec
42.152.123.237 0:0:0:0:0:ffff:2a98:7bed
42.152.123.238 0:0:0:0:0:ffff:2a98:7bee
42.152.123.239 0:0:0:0:0:ffff:2a98:7bef
42.152.123.240 0:0:0:0:0:ffff:2a98:7bf0
42.152.123.241 0:0:0:0:0:ffff:2a98:7bf1
42.152.123.242 0:0:0:0:0:ffff:2a98:7bf2
42.152.123.243 0:0:0:0:0:ffff:2a98:7bf3
42.152.123.244 0:0:0:0:0:ffff:2a98:7bf4
42.152.123.245 0:0:0:0:0:ffff:2a98:7bf5
42.152.123.246 0:0:0:0:0:ffff:2a98:7bf6
42.152.123.247 0:0:0:0:0:ffff:2a98:7bf7
42.152.123.248 0:0:0:0:0:ffff:2a98:7bf8
42.152.123.249 0:0:0:0:0:ffff:2a98:7bf9
42.152.123.250 0:0:0:0:0:ffff:2a98:7bfa
42.152.123.251 0:0:0:0:0:ffff:2a98:7bfb
42.152.123.252 0:0:0:0:0:ffff:2a98:7bfc
42.152.123.253 0:0:0:0:0:ffff:2a98:7bfd
42.152.123.254 0:0:0:0:0:ffff:2a98:7bfe
42.152.123.255 0:0:0:0:0:ffff:2a98:7bff


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.