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
30.55.123.1 0:0:0:0:0:ffff:1e37:7b01
30.55.123.2 0:0:0:0:0:ffff:1e37:7b02
30.55.123.3 0:0:0:0:0:ffff:1e37:7b03
30.55.123.4 0:0:0:0:0:ffff:1e37:7b04
30.55.123.5 0:0:0:0:0:ffff:1e37:7b05
30.55.123.6 0:0:0:0:0:ffff:1e37:7b06
30.55.123.7 0:0:0:0:0:ffff:1e37:7b07
30.55.123.8 0:0:0:0:0:ffff:1e37:7b08
30.55.123.9 0:0:0:0:0:ffff:1e37:7b09
30.55.123.10 0:0:0:0:0:ffff:1e37:7b0a
30.55.123.11 0:0:0:0:0:ffff:1e37:7b0b
30.55.123.12 0:0:0:0:0:ffff:1e37:7b0c
30.55.123.13 0:0:0:0:0:ffff:1e37:7b0d
30.55.123.14 0:0:0:0:0:ffff:1e37:7b0e
30.55.123.15 0:0:0:0:0:ffff:1e37:7b0f
30.55.123.16 0:0:0:0:0:ffff:1e37:7b10
30.55.123.17 0:0:0:0:0:ffff:1e37:7b11
30.55.123.18 0:0:0:0:0:ffff:1e37:7b12
30.55.123.19 0:0:0:0:0:ffff:1e37:7b13
30.55.123.20 0:0:0:0:0:ffff:1e37:7b14
30.55.123.21 0:0:0:0:0:ffff:1e37:7b15
30.55.123.22 0:0:0:0:0:ffff:1e37:7b16
30.55.123.23 0:0:0:0:0:ffff:1e37:7b17
30.55.123.24 0:0:0:0:0:ffff:1e37:7b18
30.55.123.25 0:0:0:0:0:ffff:1e37:7b19
30.55.123.26 0:0:0:0:0:ffff:1e37:7b1a
30.55.123.27 0:0:0:0:0:ffff:1e37:7b1b
30.55.123.28 0:0:0:0:0:ffff:1e37:7b1c
30.55.123.29 0:0:0:0:0:ffff:1e37:7b1d
30.55.123.30 0:0:0:0:0:ffff:1e37:7b1e
30.55.123.31 0:0:0:0:0:ffff:1e37:7b1f
30.55.123.32 0:0:0:0:0:ffff:1e37:7b20
30.55.123.33 0:0:0:0:0:ffff:1e37:7b21
30.55.123.34 0:0:0:0:0:ffff:1e37:7b22
30.55.123.35 0:0:0:0:0:ffff:1e37:7b23
30.55.123.36 0:0:0:0:0:ffff:1e37:7b24
30.55.123.37 0:0:0:0:0:ffff:1e37:7b25
30.55.123.38 0:0:0:0:0:ffff:1e37:7b26
30.55.123.39 0:0:0:0:0:ffff:1e37:7b27
30.55.123.40 0:0:0:0:0:ffff:1e37:7b28
30.55.123.41 0:0:0:0:0:ffff:1e37:7b29
30.55.123.42 0:0:0:0:0:ffff:1e37:7b2a
30.55.123.43 0:0:0:0:0:ffff:1e37:7b2b
30.55.123.44 0:0:0:0:0:ffff:1e37:7b2c
30.55.123.45 0:0:0:0:0:ffff:1e37:7b2d
30.55.123.46 0:0:0:0:0:ffff:1e37:7b2e
30.55.123.47 0:0:0:0:0:ffff:1e37:7b2f
30.55.123.48 0:0:0:0:0:ffff:1e37:7b30
30.55.123.49 0:0:0:0:0:ffff:1e37:7b31
30.55.123.50 0:0:0:0:0:ffff:1e37:7b32
30.55.123.51 0:0:0:0:0:ffff:1e37:7b33
30.55.123.52 0:0:0:0:0:ffff:1e37:7b34
30.55.123.53 0:0:0:0:0:ffff:1e37:7b35
30.55.123.54 0:0:0:0:0:ffff:1e37:7b36
30.55.123.55 0:0:0:0:0:ffff:1e37:7b37
30.55.123.56 0:0:0:0:0:ffff:1e37:7b38
30.55.123.57 0:0:0:0:0:ffff:1e37:7b39
30.55.123.58 0:0:0:0:0:ffff:1e37:7b3a
30.55.123.59 0:0:0:0:0:ffff:1e37:7b3b
30.55.123.60 0:0:0:0:0:ffff:1e37:7b3c


30.55.123.61 0:0:0:0:0:ffff:1e37:7b3d
30.55.123.62 0:0:0:0:0:ffff:1e37:7b3e
30.55.123.63 0:0:0:0:0:ffff:1e37:7b3f
30.55.123.64 0:0:0:0:0:ffff:1e37:7b40
30.55.123.65 0:0:0:0:0:ffff:1e37:7b41
30.55.123.66 0:0:0:0:0:ffff:1e37:7b42
30.55.123.67 0:0:0:0:0:ffff:1e37:7b43
30.55.123.68 0:0:0:0:0:ffff:1e37:7b44
30.55.123.69 0:0:0:0:0:ffff:1e37:7b45
30.55.123.70 0:0:0:0:0:ffff:1e37:7b46
30.55.123.71 0:0:0:0:0:ffff:1e37:7b47
30.55.123.72 0:0:0:0:0:ffff:1e37:7b48
30.55.123.73 0:0:0:0:0:ffff:1e37:7b49
30.55.123.74 0:0:0:0:0:ffff:1e37:7b4a
30.55.123.75 0:0:0:0:0:ffff:1e37:7b4b
30.55.123.76 0:0:0:0:0:ffff:1e37:7b4c
30.55.123.77 0:0:0:0:0:ffff:1e37:7b4d
30.55.123.78 0:0:0:0:0:ffff:1e37:7b4e
30.55.123.79 0:0:0:0:0:ffff:1e37:7b4f
30.55.123.80 0:0:0:0:0:ffff:1e37:7b50
30.55.123.81 0:0:0:0:0:ffff:1e37:7b51
30.55.123.82 0:0:0:0:0:ffff:1e37:7b52
30.55.123.83 0:0:0:0:0:ffff:1e37:7b53
30.55.123.84 0:0:0:0:0:ffff:1e37:7b54
30.55.123.85 0:0:0:0:0:ffff:1e37:7b55
30.55.123.86 0:0:0:0:0:ffff:1e37:7b56
30.55.123.87 0:0:0:0:0:ffff:1e37:7b57
30.55.123.88 0:0:0:0:0:ffff:1e37:7b58
30.55.123.89 0:0:0:0:0:ffff:1e37:7b59
30.55.123.90 0:0:0:0:0:ffff:1e37:7b5a
30.55.123.91 0:0:0:0:0:ffff:1e37:7b5b
30.55.123.92 0:0:0:0:0:ffff:1e37:7b5c
30.55.123.93 0:0:0:0:0:ffff:1e37:7b5d
30.55.123.94 0:0:0:0:0:ffff:1e37:7b5e
30.55.123.95 0:0:0:0:0:ffff:1e37:7b5f
30.55.123.96 0:0:0:0:0:ffff:1e37:7b60
30.55.123.97 0:0:0:0:0:ffff:1e37:7b61
30.55.123.98 0:0:0:0:0:ffff:1e37:7b62
30.55.123.99 0:0:0:0:0:ffff:1e37:7b63
30.55.123.100 0:0:0:0:0:ffff:1e37:7b64
30.55.123.101 0:0:0:0:0:ffff:1e37:7b65
30.55.123.102 0:0:0:0:0:ffff:1e37:7b66
30.55.123.103 0:0:0:0:0:ffff:1e37:7b67
30.55.123.104 0:0:0:0:0:ffff:1e37:7b68
30.55.123.105 0:0:0:0:0:ffff:1e37:7b69
30.55.123.106 0:0:0:0:0:ffff:1e37:7b6a
30.55.123.107 0:0:0:0:0:ffff:1e37:7b6b
30.55.123.108 0:0:0:0:0:ffff:1e37:7b6c
30.55.123.109 0:0:0:0:0:ffff:1e37:7b6d
30.55.123.110 0:0:0:0:0:ffff:1e37:7b6e
30.55.123.111 0:0:0:0:0:ffff:1e37:7b6f
30.55.123.112 0:0:0:0:0:ffff:1e37:7b70
30.55.123.113 0:0:0:0:0:ffff:1e37:7b71
30.55.123.114 0:0:0:0:0:ffff:1e37:7b72
30.55.123.115 0:0:0:0:0:ffff:1e37:7b73
30.55.123.116 0:0:0:0:0:ffff:1e37:7b74
30.55.123.117 0:0:0:0:0:ffff:1e37:7b75
30.55.123.118 0:0:0:0:0:ffff:1e37:7b76
30.55.123.119 0:0:0:0:0:ffff:1e37:7b77
30.55.123.120 0:0:0:0:0:ffff:1e37:7b78


30.55.123.121 0:0:0:0:0:ffff:1e37:7b79
30.55.123.122 0:0:0:0:0:ffff:1e37:7b7a
30.55.123.123 0:0:0:0:0:ffff:1e37:7b7b
30.55.123.124 0:0:0:0:0:ffff:1e37:7b7c
30.55.123.125 0:0:0:0:0:ffff:1e37:7b7d
30.55.123.126 0:0:0:0:0:ffff:1e37:7b7e
30.55.123.127 0:0:0:0:0:ffff:1e37:7b7f
30.55.123.128 0:0:0:0:0:ffff:1e37:7b80
30.55.123.129 0:0:0:0:0:ffff:1e37:7b81
30.55.123.130 0:0:0:0:0:ffff:1e37:7b82
30.55.123.131 0:0:0:0:0:ffff:1e37:7b83
30.55.123.132 0:0:0:0:0:ffff:1e37:7b84
30.55.123.133 0:0:0:0:0:ffff:1e37:7b85
30.55.123.134 0:0:0:0:0:ffff:1e37:7b86
30.55.123.135 0:0:0:0:0:ffff:1e37:7b87
30.55.123.136 0:0:0:0:0:ffff:1e37:7b88
30.55.123.137 0:0:0:0:0:ffff:1e37:7b89
30.55.123.138 0:0:0:0:0:ffff:1e37:7b8a
30.55.123.139 0:0:0:0:0:ffff:1e37:7b8b
30.55.123.140 0:0:0:0:0:ffff:1e37:7b8c
30.55.123.141 0:0:0:0:0:ffff:1e37:7b8d
30.55.123.142 0:0:0:0:0:ffff:1e37:7b8e
30.55.123.143 0:0:0:0:0:ffff:1e37:7b8f
30.55.123.144 0:0:0:0:0:ffff:1e37:7b90
30.55.123.145 0:0:0:0:0:ffff:1e37:7b91
30.55.123.146 0:0:0:0:0:ffff:1e37:7b92
30.55.123.147 0:0:0:0:0:ffff:1e37:7b93
30.55.123.148 0:0:0:0:0:ffff:1e37:7b94
30.55.123.149 0:0:0:0:0:ffff:1e37:7b95
30.55.123.150 0:0:0:0:0:ffff:1e37:7b96
30.55.123.151 0:0:0:0:0:ffff:1e37:7b97
30.55.123.152 0:0:0:0:0:ffff:1e37:7b98
30.55.123.153 0:0:0:0:0:ffff:1e37:7b99
30.55.123.154 0:0:0:0:0:ffff:1e37:7b9a
30.55.123.155 0:0:0:0:0:ffff:1e37:7b9b
30.55.123.156 0:0:0:0:0:ffff:1e37:7b9c
30.55.123.157 0:0:0:0:0:ffff:1e37:7b9d
30.55.123.158 0:0:0:0:0:ffff:1e37:7b9e
30.55.123.159 0:0:0:0:0:ffff:1e37:7b9f
30.55.123.160 0:0:0:0:0:ffff:1e37:7ba0
30.55.123.161 0:0:0:0:0:ffff:1e37:7ba1
30.55.123.162 0:0:0:0:0:ffff:1e37:7ba2
30.55.123.163 0:0:0:0:0:ffff:1e37:7ba3
30.55.123.164 0:0:0:0:0:ffff:1e37:7ba4
30.55.123.165 0:0:0:0:0:ffff:1e37:7ba5
30.55.123.166 0:0:0:0:0:ffff:1e37:7ba6
30.55.123.167 0:0:0:0:0:ffff:1e37:7ba7
30.55.123.168 0:0:0:0:0:ffff:1e37:7ba8
30.55.123.169 0:0:0:0:0:ffff:1e37:7ba9
30.55.123.170 0:0:0:0:0:ffff:1e37:7baa
30.55.123.171 0:0:0:0:0:ffff:1e37:7bab
30.55.123.172 0:0:0:0:0:ffff:1e37:7bac
30.55.123.173 0:0:0:0:0:ffff:1e37:7bad
30.55.123.174 0:0:0:0:0:ffff:1e37:7bae
30.55.123.175 0:0:0:0:0:ffff:1e37:7baf
30.55.123.176 0:0:0:0:0:ffff:1e37:7bb0
30.55.123.177 0:0:0:0:0:ffff:1e37:7bb1
30.55.123.178 0:0:0:0:0:ffff:1e37:7bb2
30.55.123.179 0:0:0:0:0:ffff:1e37:7bb3
30.55.123.180 0:0:0:0:0:ffff:1e37:7bb4


30.55.123.181 0:0:0:0:0:ffff:1e37:7bb5
30.55.123.182 0:0:0:0:0:ffff:1e37:7bb6
30.55.123.183 0:0:0:0:0:ffff:1e37:7bb7
30.55.123.184 0:0:0:0:0:ffff:1e37:7bb8
30.55.123.185 0:0:0:0:0:ffff:1e37:7bb9
30.55.123.186 0:0:0:0:0:ffff:1e37:7bba
30.55.123.187 0:0:0:0:0:ffff:1e37:7bbb
30.55.123.188 0:0:0:0:0:ffff:1e37:7bbc
30.55.123.189 0:0:0:0:0:ffff:1e37:7bbd
30.55.123.190 0:0:0:0:0:ffff:1e37:7bbe
30.55.123.191 0:0:0:0:0:ffff:1e37:7bbf
30.55.123.192 0:0:0:0:0:ffff:1e37:7bc0
30.55.123.193 0:0:0:0:0:ffff:1e37:7bc1
30.55.123.194 0:0:0:0:0:ffff:1e37:7bc2
30.55.123.195 0:0:0:0:0:ffff:1e37:7bc3
30.55.123.196 0:0:0:0:0:ffff:1e37:7bc4
30.55.123.197 0:0:0:0:0:ffff:1e37:7bc5
30.55.123.198 0:0:0:0:0:ffff:1e37:7bc6
30.55.123.199 0:0:0:0:0:ffff:1e37:7bc7
30.55.123.200 0:0:0:0:0:ffff:1e37:7bc8
30.55.123.201 0:0:0:0:0:ffff:1e37:7bc9
30.55.123.202 0:0:0:0:0:ffff:1e37:7bca
30.55.123.203 0:0:0:0:0:ffff:1e37:7bcb
30.55.123.204 0:0:0:0:0:ffff:1e37:7bcc
30.55.123.205 0:0:0:0:0:ffff:1e37:7bcd
30.55.123.206 0:0:0:0:0:ffff:1e37:7bce
30.55.123.207 0:0:0:0:0:ffff:1e37:7bcf
30.55.123.208 0:0:0:0:0:ffff:1e37:7bd0
30.55.123.209 0:0:0:0:0:ffff:1e37:7bd1
30.55.123.210 0:0:0:0:0:ffff:1e37:7bd2
30.55.123.211 0:0:0:0:0:ffff:1e37:7bd3
30.55.123.212 0:0:0:0:0:ffff:1e37:7bd4
30.55.123.213 0:0:0:0:0:ffff:1e37:7bd5
30.55.123.214 0:0:0:0:0:ffff:1e37:7bd6
30.55.123.215 0:0:0:0:0:ffff:1e37:7bd7
30.55.123.216 0:0:0:0:0:ffff:1e37:7bd8
30.55.123.217 0:0:0:0:0:ffff:1e37:7bd9
30.55.123.218 0:0:0:0:0:ffff:1e37:7bda
30.55.123.219 0:0:0:0:0:ffff:1e37:7bdb
30.55.123.220 0:0:0:0:0:ffff:1e37:7bdc
30.55.123.221 0:0:0:0:0:ffff:1e37:7bdd
30.55.123.222 0:0:0:0:0:ffff:1e37:7bde
30.55.123.223 0:0:0:0:0:ffff:1e37:7bdf
30.55.123.224 0:0:0:0:0:ffff:1e37:7be0
30.55.123.225 0:0:0:0:0:ffff:1e37:7be1
30.55.123.226 0:0:0:0:0:ffff:1e37:7be2
30.55.123.227 0:0:0:0:0:ffff:1e37:7be3
30.55.123.228 0:0:0:0:0:ffff:1e37:7be4
30.55.123.229 0:0:0:0:0:ffff:1e37:7be5
30.55.123.230 0:0:0:0:0:ffff:1e37:7be6
30.55.123.231 0:0:0:0:0:ffff:1e37:7be7
30.55.123.232 0:0:0:0:0:ffff:1e37:7be8
30.55.123.233 0:0:0:0:0:ffff:1e37:7be9
30.55.123.234 0:0:0:0:0:ffff:1e37:7bea
30.55.123.235 0:0:0:0:0:ffff:1e37:7beb
30.55.123.236 0:0:0:0:0:ffff:1e37:7bec
30.55.123.237 0:0:0:0:0:ffff:1e37:7bed
30.55.123.238 0:0:0:0:0:ffff:1e37:7bee
30.55.123.239 0:0:0:0:0:ffff:1e37:7bef
30.55.123.240 0:0:0:0:0:ffff:1e37:7bf0
30.55.123.241 0:0:0:0:0:ffff:1e37:7bf1
30.55.123.242 0:0:0:0:0:ffff:1e37:7bf2
30.55.123.243 0:0:0:0:0:ffff:1e37:7bf3
30.55.123.244 0:0:0:0:0:ffff:1e37:7bf4
30.55.123.245 0:0:0:0:0:ffff:1e37:7bf5
30.55.123.246 0:0:0:0:0:ffff:1e37:7bf6
30.55.123.247 0:0:0:0:0:ffff:1e37:7bf7
30.55.123.248 0:0:0:0:0:ffff:1e37:7bf8
30.55.123.249 0:0:0:0:0:ffff:1e37:7bf9
30.55.123.250 0:0:0:0:0:ffff:1e37:7bfa
30.55.123.251 0:0:0:0:0:ffff:1e37:7bfb
30.55.123.252 0:0:0:0:0:ffff:1e37:7bfc
30.55.123.253 0:0:0:0:0:ffff:1e37:7bfd
30.55.123.254 0:0:0:0:0:ffff:1e37:7bfe
30.55.123.255 0:0:0:0:0:ffff:1e37:7bff


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.