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
221.90.42.1 0:0:0:0:0:ffff:dd5a:2a01
221.90.42.2 0:0:0:0:0:ffff:dd5a:2a02
221.90.42.3 0:0:0:0:0:ffff:dd5a:2a03
221.90.42.4 0:0:0:0:0:ffff:dd5a:2a04
221.90.42.5 0:0:0:0:0:ffff:dd5a:2a05
221.90.42.6 0:0:0:0:0:ffff:dd5a:2a06
221.90.42.7 0:0:0:0:0:ffff:dd5a:2a07
221.90.42.8 0:0:0:0:0:ffff:dd5a:2a08
221.90.42.9 0:0:0:0:0:ffff:dd5a:2a09
221.90.42.10 0:0:0:0:0:ffff:dd5a:2a0a
221.90.42.11 0:0:0:0:0:ffff:dd5a:2a0b
221.90.42.12 0:0:0:0:0:ffff:dd5a:2a0c
221.90.42.13 0:0:0:0:0:ffff:dd5a:2a0d
221.90.42.14 0:0:0:0:0:ffff:dd5a:2a0e
221.90.42.15 0:0:0:0:0:ffff:dd5a:2a0f
221.90.42.16 0:0:0:0:0:ffff:dd5a:2a10
221.90.42.17 0:0:0:0:0:ffff:dd5a:2a11
221.90.42.18 0:0:0:0:0:ffff:dd5a:2a12
221.90.42.19 0:0:0:0:0:ffff:dd5a:2a13
221.90.42.20 0:0:0:0:0:ffff:dd5a:2a14
221.90.42.21 0:0:0:0:0:ffff:dd5a:2a15
221.90.42.22 0:0:0:0:0:ffff:dd5a:2a16
221.90.42.23 0:0:0:0:0:ffff:dd5a:2a17
221.90.42.24 0:0:0:0:0:ffff:dd5a:2a18
221.90.42.25 0:0:0:0:0:ffff:dd5a:2a19
221.90.42.26 0:0:0:0:0:ffff:dd5a:2a1a
221.90.42.27 0:0:0:0:0:ffff:dd5a:2a1b
221.90.42.28 0:0:0:0:0:ffff:dd5a:2a1c
221.90.42.29 0:0:0:0:0:ffff:dd5a:2a1d
221.90.42.30 0:0:0:0:0:ffff:dd5a:2a1e
221.90.42.31 0:0:0:0:0:ffff:dd5a:2a1f
221.90.42.32 0:0:0:0:0:ffff:dd5a:2a20
221.90.42.33 0:0:0:0:0:ffff:dd5a:2a21
221.90.42.34 0:0:0:0:0:ffff:dd5a:2a22
221.90.42.35 0:0:0:0:0:ffff:dd5a:2a23
221.90.42.36 0:0:0:0:0:ffff:dd5a:2a24
221.90.42.37 0:0:0:0:0:ffff:dd5a:2a25
221.90.42.38 0:0:0:0:0:ffff:dd5a:2a26
221.90.42.39 0:0:0:0:0:ffff:dd5a:2a27
221.90.42.40 0:0:0:0:0:ffff:dd5a:2a28
221.90.42.41 0:0:0:0:0:ffff:dd5a:2a29
221.90.42.42 0:0:0:0:0:ffff:dd5a:2a2a
221.90.42.43 0:0:0:0:0:ffff:dd5a:2a2b
221.90.42.44 0:0:0:0:0:ffff:dd5a:2a2c
221.90.42.45 0:0:0:0:0:ffff:dd5a:2a2d
221.90.42.46 0:0:0:0:0:ffff:dd5a:2a2e
221.90.42.47 0:0:0:0:0:ffff:dd5a:2a2f
221.90.42.48 0:0:0:0:0:ffff:dd5a:2a30
221.90.42.49 0:0:0:0:0:ffff:dd5a:2a31
221.90.42.50 0:0:0:0:0:ffff:dd5a:2a32
221.90.42.51 0:0:0:0:0:ffff:dd5a:2a33
221.90.42.52 0:0:0:0:0:ffff:dd5a:2a34
221.90.42.53 0:0:0:0:0:ffff:dd5a:2a35
221.90.42.54 0:0:0:0:0:ffff:dd5a:2a36
221.90.42.55 0:0:0:0:0:ffff:dd5a:2a37
221.90.42.56 0:0:0:0:0:ffff:dd5a:2a38
221.90.42.57 0:0:0:0:0:ffff:dd5a:2a39
221.90.42.58 0:0:0:0:0:ffff:dd5a:2a3a
221.90.42.59 0:0:0:0:0:ffff:dd5a:2a3b
221.90.42.60 0:0:0:0:0:ffff:dd5a:2a3c


221.90.42.61 0:0:0:0:0:ffff:dd5a:2a3d
221.90.42.62 0:0:0:0:0:ffff:dd5a:2a3e
221.90.42.63 0:0:0:0:0:ffff:dd5a:2a3f
221.90.42.64 0:0:0:0:0:ffff:dd5a:2a40
221.90.42.65 0:0:0:0:0:ffff:dd5a:2a41
221.90.42.66 0:0:0:0:0:ffff:dd5a:2a42
221.90.42.67 0:0:0:0:0:ffff:dd5a:2a43
221.90.42.68 0:0:0:0:0:ffff:dd5a:2a44
221.90.42.69 0:0:0:0:0:ffff:dd5a:2a45
221.90.42.70 0:0:0:0:0:ffff:dd5a:2a46
221.90.42.71 0:0:0:0:0:ffff:dd5a:2a47
221.90.42.72 0:0:0:0:0:ffff:dd5a:2a48
221.90.42.73 0:0:0:0:0:ffff:dd5a:2a49
221.90.42.74 0:0:0:0:0:ffff:dd5a:2a4a
221.90.42.75 0:0:0:0:0:ffff:dd5a:2a4b
221.90.42.76 0:0:0:0:0:ffff:dd5a:2a4c
221.90.42.77 0:0:0:0:0:ffff:dd5a:2a4d
221.90.42.78 0:0:0:0:0:ffff:dd5a:2a4e
221.90.42.79 0:0:0:0:0:ffff:dd5a:2a4f
221.90.42.80 0:0:0:0:0:ffff:dd5a:2a50
221.90.42.81 0:0:0:0:0:ffff:dd5a:2a51
221.90.42.82 0:0:0:0:0:ffff:dd5a:2a52
221.90.42.83 0:0:0:0:0:ffff:dd5a:2a53
221.90.42.84 0:0:0:0:0:ffff:dd5a:2a54
221.90.42.85 0:0:0:0:0:ffff:dd5a:2a55
221.90.42.86 0:0:0:0:0:ffff:dd5a:2a56
221.90.42.87 0:0:0:0:0:ffff:dd5a:2a57
221.90.42.88 0:0:0:0:0:ffff:dd5a:2a58
221.90.42.89 0:0:0:0:0:ffff:dd5a:2a59
221.90.42.90 0:0:0:0:0:ffff:dd5a:2a5a
221.90.42.91 0:0:0:0:0:ffff:dd5a:2a5b
221.90.42.92 0:0:0:0:0:ffff:dd5a:2a5c
221.90.42.93 0:0:0:0:0:ffff:dd5a:2a5d
221.90.42.94 0:0:0:0:0:ffff:dd5a:2a5e
221.90.42.95 0:0:0:0:0:ffff:dd5a:2a5f
221.90.42.96 0:0:0:0:0:ffff:dd5a:2a60
221.90.42.97 0:0:0:0:0:ffff:dd5a:2a61
221.90.42.98 0:0:0:0:0:ffff:dd5a:2a62
221.90.42.99 0:0:0:0:0:ffff:dd5a:2a63
221.90.42.100 0:0:0:0:0:ffff:dd5a:2a64
221.90.42.101 0:0:0:0:0:ffff:dd5a:2a65
221.90.42.102 0:0:0:0:0:ffff:dd5a:2a66
221.90.42.103 0:0:0:0:0:ffff:dd5a:2a67
221.90.42.104 0:0:0:0:0:ffff:dd5a:2a68
221.90.42.105 0:0:0:0:0:ffff:dd5a:2a69
221.90.42.106 0:0:0:0:0:ffff:dd5a:2a6a
221.90.42.107 0:0:0:0:0:ffff:dd5a:2a6b
221.90.42.108 0:0:0:0:0:ffff:dd5a:2a6c
221.90.42.109 0:0:0:0:0:ffff:dd5a:2a6d
221.90.42.110 0:0:0:0:0:ffff:dd5a:2a6e
221.90.42.111 0:0:0:0:0:ffff:dd5a:2a6f
221.90.42.112 0:0:0:0:0:ffff:dd5a:2a70
221.90.42.113 0:0:0:0:0:ffff:dd5a:2a71
221.90.42.114 0:0:0:0:0:ffff:dd5a:2a72
221.90.42.115 0:0:0:0:0:ffff:dd5a:2a73
221.90.42.116 0:0:0:0:0:ffff:dd5a:2a74
221.90.42.117 0:0:0:0:0:ffff:dd5a:2a75
221.90.42.118 0:0:0:0:0:ffff:dd5a:2a76
221.90.42.119 0:0:0:0:0:ffff:dd5a:2a77
221.90.42.120 0:0:0:0:0:ffff:dd5a:2a78


221.90.42.121 0:0:0:0:0:ffff:dd5a:2a79
221.90.42.122 0:0:0:0:0:ffff:dd5a:2a7a
221.90.42.123 0:0:0:0:0:ffff:dd5a:2a7b
221.90.42.124 0:0:0:0:0:ffff:dd5a:2a7c
221.90.42.125 0:0:0:0:0:ffff:dd5a:2a7d
221.90.42.126 0:0:0:0:0:ffff:dd5a:2a7e
221.90.42.127 0:0:0:0:0:ffff:dd5a:2a7f
221.90.42.128 0:0:0:0:0:ffff:dd5a:2a80
221.90.42.129 0:0:0:0:0:ffff:dd5a:2a81
221.90.42.130 0:0:0:0:0:ffff:dd5a:2a82
221.90.42.131 0:0:0:0:0:ffff:dd5a:2a83
221.90.42.132 0:0:0:0:0:ffff:dd5a:2a84
221.90.42.133 0:0:0:0:0:ffff:dd5a:2a85
221.90.42.134 0:0:0:0:0:ffff:dd5a:2a86
221.90.42.135 0:0:0:0:0:ffff:dd5a:2a87
221.90.42.136 0:0:0:0:0:ffff:dd5a:2a88
221.90.42.137 0:0:0:0:0:ffff:dd5a:2a89
221.90.42.138 0:0:0:0:0:ffff:dd5a:2a8a
221.90.42.139 0:0:0:0:0:ffff:dd5a:2a8b
221.90.42.140 0:0:0:0:0:ffff:dd5a:2a8c
221.90.42.141 0:0:0:0:0:ffff:dd5a:2a8d
221.90.42.142 0:0:0:0:0:ffff:dd5a:2a8e
221.90.42.143 0:0:0:0:0:ffff:dd5a:2a8f
221.90.42.144 0:0:0:0:0:ffff:dd5a:2a90
221.90.42.145 0:0:0:0:0:ffff:dd5a:2a91
221.90.42.146 0:0:0:0:0:ffff:dd5a:2a92
221.90.42.147 0:0:0:0:0:ffff:dd5a:2a93
221.90.42.148 0:0:0:0:0:ffff:dd5a:2a94
221.90.42.149 0:0:0:0:0:ffff:dd5a:2a95
221.90.42.150 0:0:0:0:0:ffff:dd5a:2a96
221.90.42.151 0:0:0:0:0:ffff:dd5a:2a97
221.90.42.152 0:0:0:0:0:ffff:dd5a:2a98
221.90.42.153 0:0:0:0:0:ffff:dd5a:2a99
221.90.42.154 0:0:0:0:0:ffff:dd5a:2a9a
221.90.42.155 0:0:0:0:0:ffff:dd5a:2a9b
221.90.42.156 0:0:0:0:0:ffff:dd5a:2a9c
221.90.42.157 0:0:0:0:0:ffff:dd5a:2a9d
221.90.42.158 0:0:0:0:0:ffff:dd5a:2a9e
221.90.42.159 0:0:0:0:0:ffff:dd5a:2a9f
221.90.42.160 0:0:0:0:0:ffff:dd5a:2aa0
221.90.42.161 0:0:0:0:0:ffff:dd5a:2aa1
221.90.42.162 0:0:0:0:0:ffff:dd5a:2aa2
221.90.42.163 0:0:0:0:0:ffff:dd5a:2aa3
221.90.42.164 0:0:0:0:0:ffff:dd5a:2aa4
221.90.42.165 0:0:0:0:0:ffff:dd5a:2aa5
221.90.42.166 0:0:0:0:0:ffff:dd5a:2aa6
221.90.42.167 0:0:0:0:0:ffff:dd5a:2aa7
221.90.42.168 0:0:0:0:0:ffff:dd5a:2aa8
221.90.42.169 0:0:0:0:0:ffff:dd5a:2aa9
221.90.42.170 0:0:0:0:0:ffff:dd5a:2aaa
221.90.42.171 0:0:0:0:0:ffff:dd5a:2aab
221.90.42.172 0:0:0:0:0:ffff:dd5a:2aac
221.90.42.173 0:0:0:0:0:ffff:dd5a:2aad
221.90.42.174 0:0:0:0:0:ffff:dd5a:2aae
221.90.42.175 0:0:0:0:0:ffff:dd5a:2aaf
221.90.42.176 0:0:0:0:0:ffff:dd5a:2ab0
221.90.42.177 0:0:0:0:0:ffff:dd5a:2ab1
221.90.42.178 0:0:0:0:0:ffff:dd5a:2ab2
221.90.42.179 0:0:0:0:0:ffff:dd5a:2ab3
221.90.42.180 0:0:0:0:0:ffff:dd5a:2ab4


221.90.42.181 0:0:0:0:0:ffff:dd5a:2ab5
221.90.42.182 0:0:0:0:0:ffff:dd5a:2ab6
221.90.42.183 0:0:0:0:0:ffff:dd5a:2ab7
221.90.42.184 0:0:0:0:0:ffff:dd5a:2ab8
221.90.42.185 0:0:0:0:0:ffff:dd5a:2ab9
221.90.42.186 0:0:0:0:0:ffff:dd5a:2aba
221.90.42.187 0:0:0:0:0:ffff:dd5a:2abb
221.90.42.188 0:0:0:0:0:ffff:dd5a:2abc
221.90.42.189 0:0:0:0:0:ffff:dd5a:2abd
221.90.42.190 0:0:0:0:0:ffff:dd5a:2abe
221.90.42.191 0:0:0:0:0:ffff:dd5a:2abf
221.90.42.192 0:0:0:0:0:ffff:dd5a:2ac0
221.90.42.193 0:0:0:0:0:ffff:dd5a:2ac1
221.90.42.194 0:0:0:0:0:ffff:dd5a:2ac2
221.90.42.195 0:0:0:0:0:ffff:dd5a:2ac3
221.90.42.196 0:0:0:0:0:ffff:dd5a:2ac4
221.90.42.197 0:0:0:0:0:ffff:dd5a:2ac5
221.90.42.198 0:0:0:0:0:ffff:dd5a:2ac6
221.90.42.199 0:0:0:0:0:ffff:dd5a:2ac7
221.90.42.200 0:0:0:0:0:ffff:dd5a:2ac8
221.90.42.201 0:0:0:0:0:ffff:dd5a:2ac9
221.90.42.202 0:0:0:0:0:ffff:dd5a:2aca
221.90.42.203 0:0:0:0:0:ffff:dd5a:2acb
221.90.42.204 0:0:0:0:0:ffff:dd5a:2acc
221.90.42.205 0:0:0:0:0:ffff:dd5a:2acd
221.90.42.206 0:0:0:0:0:ffff:dd5a:2ace
221.90.42.207 0:0:0:0:0:ffff:dd5a:2acf
221.90.42.208 0:0:0:0:0:ffff:dd5a:2ad0
221.90.42.209 0:0:0:0:0:ffff:dd5a:2ad1
221.90.42.210 0:0:0:0:0:ffff:dd5a:2ad2
221.90.42.211 0:0:0:0:0:ffff:dd5a:2ad3
221.90.42.212 0:0:0:0:0:ffff:dd5a:2ad4
221.90.42.213 0:0:0:0:0:ffff:dd5a:2ad5
221.90.42.214 0:0:0:0:0:ffff:dd5a:2ad6
221.90.42.215 0:0:0:0:0:ffff:dd5a:2ad7
221.90.42.216 0:0:0:0:0:ffff:dd5a:2ad8
221.90.42.217 0:0:0:0:0:ffff:dd5a:2ad9
221.90.42.218 0:0:0:0:0:ffff:dd5a:2ada
221.90.42.219 0:0:0:0:0:ffff:dd5a:2adb
221.90.42.220 0:0:0:0:0:ffff:dd5a:2adc
221.90.42.221 0:0:0:0:0:ffff:dd5a:2add
221.90.42.222 0:0:0:0:0:ffff:dd5a:2ade
221.90.42.223 0:0:0:0:0:ffff:dd5a:2adf
221.90.42.224 0:0:0:0:0:ffff:dd5a:2ae0
221.90.42.225 0:0:0:0:0:ffff:dd5a:2ae1
221.90.42.226 0:0:0:0:0:ffff:dd5a:2ae2
221.90.42.227 0:0:0:0:0:ffff:dd5a:2ae3
221.90.42.228 0:0:0:0:0:ffff:dd5a:2ae4
221.90.42.229 0:0:0:0:0:ffff:dd5a:2ae5
221.90.42.230 0:0:0:0:0:ffff:dd5a:2ae6
221.90.42.231 0:0:0:0:0:ffff:dd5a:2ae7
221.90.42.232 0:0:0:0:0:ffff:dd5a:2ae8
221.90.42.233 0:0:0:0:0:ffff:dd5a:2ae9
221.90.42.234 0:0:0:0:0:ffff:dd5a:2aea
221.90.42.235 0:0:0:0:0:ffff:dd5a:2aeb
221.90.42.236 0:0:0:0:0:ffff:dd5a:2aec
221.90.42.237 0:0:0:0:0:ffff:dd5a:2aed
221.90.42.238 0:0:0:0:0:ffff:dd5a:2aee
221.90.42.239 0:0:0:0:0:ffff:dd5a:2aef
221.90.42.240 0:0:0:0:0:ffff:dd5a:2af0
221.90.42.241 0:0:0:0:0:ffff:dd5a:2af1
221.90.42.242 0:0:0:0:0:ffff:dd5a:2af2
221.90.42.243 0:0:0:0:0:ffff:dd5a:2af3
221.90.42.244 0:0:0:0:0:ffff:dd5a:2af4
221.90.42.245 0:0:0:0:0:ffff:dd5a:2af5
221.90.42.246 0:0:0:0:0:ffff:dd5a:2af6
221.90.42.247 0:0:0:0:0:ffff:dd5a:2af7
221.90.42.248 0:0:0:0:0:ffff:dd5a:2af8
221.90.42.249 0:0:0:0:0:ffff:dd5a:2af9
221.90.42.250 0:0:0:0:0:ffff:dd5a:2afa
221.90.42.251 0:0:0:0:0:ffff:dd5a:2afb
221.90.42.252 0:0:0:0:0:ffff:dd5a:2afc
221.90.42.253 0:0:0:0:0:ffff:dd5a:2afd
221.90.42.254 0:0:0:0:0:ffff:dd5a:2afe
221.90.42.255 0:0:0:0:0:ffff:dd5a:2aff


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.