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
166.90.42.1 0:0:0:0:0:ffff:a65a:2a01
166.90.42.2 0:0:0:0:0:ffff:a65a:2a02
166.90.42.3 0:0:0:0:0:ffff:a65a:2a03
166.90.42.4 0:0:0:0:0:ffff:a65a:2a04
166.90.42.5 0:0:0:0:0:ffff:a65a:2a05
166.90.42.6 0:0:0:0:0:ffff:a65a:2a06
166.90.42.7 0:0:0:0:0:ffff:a65a:2a07
166.90.42.8 0:0:0:0:0:ffff:a65a:2a08
166.90.42.9 0:0:0:0:0:ffff:a65a:2a09
166.90.42.10 0:0:0:0:0:ffff:a65a:2a0a
166.90.42.11 0:0:0:0:0:ffff:a65a:2a0b
166.90.42.12 0:0:0:0:0:ffff:a65a:2a0c
166.90.42.13 0:0:0:0:0:ffff:a65a:2a0d
166.90.42.14 0:0:0:0:0:ffff:a65a:2a0e
166.90.42.15 0:0:0:0:0:ffff:a65a:2a0f
166.90.42.16 0:0:0:0:0:ffff:a65a:2a10
166.90.42.17 0:0:0:0:0:ffff:a65a:2a11
166.90.42.18 0:0:0:0:0:ffff:a65a:2a12
166.90.42.19 0:0:0:0:0:ffff:a65a:2a13
166.90.42.20 0:0:0:0:0:ffff:a65a:2a14
166.90.42.21 0:0:0:0:0:ffff:a65a:2a15
166.90.42.22 0:0:0:0:0:ffff:a65a:2a16
166.90.42.23 0:0:0:0:0:ffff:a65a:2a17
166.90.42.24 0:0:0:0:0:ffff:a65a:2a18
166.90.42.25 0:0:0:0:0:ffff:a65a:2a19
166.90.42.26 0:0:0:0:0:ffff:a65a:2a1a
166.90.42.27 0:0:0:0:0:ffff:a65a:2a1b
166.90.42.28 0:0:0:0:0:ffff:a65a:2a1c
166.90.42.29 0:0:0:0:0:ffff:a65a:2a1d
166.90.42.30 0:0:0:0:0:ffff:a65a:2a1e
166.90.42.31 0:0:0:0:0:ffff:a65a:2a1f
166.90.42.32 0:0:0:0:0:ffff:a65a:2a20
166.90.42.33 0:0:0:0:0:ffff:a65a:2a21
166.90.42.34 0:0:0:0:0:ffff:a65a:2a22
166.90.42.35 0:0:0:0:0:ffff:a65a:2a23
166.90.42.36 0:0:0:0:0:ffff:a65a:2a24
166.90.42.37 0:0:0:0:0:ffff:a65a:2a25
166.90.42.38 0:0:0:0:0:ffff:a65a:2a26
166.90.42.39 0:0:0:0:0:ffff:a65a:2a27
166.90.42.40 0:0:0:0:0:ffff:a65a:2a28
166.90.42.41 0:0:0:0:0:ffff:a65a:2a29
166.90.42.42 0:0:0:0:0:ffff:a65a:2a2a
166.90.42.43 0:0:0:0:0:ffff:a65a:2a2b
166.90.42.44 0:0:0:0:0:ffff:a65a:2a2c
166.90.42.45 0:0:0:0:0:ffff:a65a:2a2d
166.90.42.46 0:0:0:0:0:ffff:a65a:2a2e
166.90.42.47 0:0:0:0:0:ffff:a65a:2a2f
166.90.42.48 0:0:0:0:0:ffff:a65a:2a30
166.90.42.49 0:0:0:0:0:ffff:a65a:2a31
166.90.42.50 0:0:0:0:0:ffff:a65a:2a32
166.90.42.51 0:0:0:0:0:ffff:a65a:2a33
166.90.42.52 0:0:0:0:0:ffff:a65a:2a34
166.90.42.53 0:0:0:0:0:ffff:a65a:2a35
166.90.42.54 0:0:0:0:0:ffff:a65a:2a36
166.90.42.55 0:0:0:0:0:ffff:a65a:2a37
166.90.42.56 0:0:0:0:0:ffff:a65a:2a38
166.90.42.57 0:0:0:0:0:ffff:a65a:2a39
166.90.42.58 0:0:0:0:0:ffff:a65a:2a3a
166.90.42.59 0:0:0:0:0:ffff:a65a:2a3b
166.90.42.60 0:0:0:0:0:ffff:a65a:2a3c


166.90.42.61 0:0:0:0:0:ffff:a65a:2a3d
166.90.42.62 0:0:0:0:0:ffff:a65a:2a3e
166.90.42.63 0:0:0:0:0:ffff:a65a:2a3f
166.90.42.64 0:0:0:0:0:ffff:a65a:2a40
166.90.42.65 0:0:0:0:0:ffff:a65a:2a41
166.90.42.66 0:0:0:0:0:ffff:a65a:2a42
166.90.42.67 0:0:0:0:0:ffff:a65a:2a43
166.90.42.68 0:0:0:0:0:ffff:a65a:2a44
166.90.42.69 0:0:0:0:0:ffff:a65a:2a45
166.90.42.70 0:0:0:0:0:ffff:a65a:2a46
166.90.42.71 0:0:0:0:0:ffff:a65a:2a47
166.90.42.72 0:0:0:0:0:ffff:a65a:2a48
166.90.42.73 0:0:0:0:0:ffff:a65a:2a49
166.90.42.74 0:0:0:0:0:ffff:a65a:2a4a
166.90.42.75 0:0:0:0:0:ffff:a65a:2a4b
166.90.42.76 0:0:0:0:0:ffff:a65a:2a4c
166.90.42.77 0:0:0:0:0:ffff:a65a:2a4d
166.90.42.78 0:0:0:0:0:ffff:a65a:2a4e
166.90.42.79 0:0:0:0:0:ffff:a65a:2a4f
166.90.42.80 0:0:0:0:0:ffff:a65a:2a50
166.90.42.81 0:0:0:0:0:ffff:a65a:2a51
166.90.42.82 0:0:0:0:0:ffff:a65a:2a52
166.90.42.83 0:0:0:0:0:ffff:a65a:2a53
166.90.42.84 0:0:0:0:0:ffff:a65a:2a54
166.90.42.85 0:0:0:0:0:ffff:a65a:2a55
166.90.42.86 0:0:0:0:0:ffff:a65a:2a56
166.90.42.87 0:0:0:0:0:ffff:a65a:2a57
166.90.42.88 0:0:0:0:0:ffff:a65a:2a58
166.90.42.89 0:0:0:0:0:ffff:a65a:2a59
166.90.42.90 0:0:0:0:0:ffff:a65a:2a5a
166.90.42.91 0:0:0:0:0:ffff:a65a:2a5b
166.90.42.92 0:0:0:0:0:ffff:a65a:2a5c
166.90.42.93 0:0:0:0:0:ffff:a65a:2a5d
166.90.42.94 0:0:0:0:0:ffff:a65a:2a5e
166.90.42.95 0:0:0:0:0:ffff:a65a:2a5f
166.90.42.96 0:0:0:0:0:ffff:a65a:2a60
166.90.42.97 0:0:0:0:0:ffff:a65a:2a61
166.90.42.98 0:0:0:0:0:ffff:a65a:2a62
166.90.42.99 0:0:0:0:0:ffff:a65a:2a63
166.90.42.100 0:0:0:0:0:ffff:a65a:2a64
166.90.42.101 0:0:0:0:0:ffff:a65a:2a65
166.90.42.102 0:0:0:0:0:ffff:a65a:2a66
166.90.42.103 0:0:0:0:0:ffff:a65a:2a67
166.90.42.104 0:0:0:0:0:ffff:a65a:2a68
166.90.42.105 0:0:0:0:0:ffff:a65a:2a69
166.90.42.106 0:0:0:0:0:ffff:a65a:2a6a
166.90.42.107 0:0:0:0:0:ffff:a65a:2a6b
166.90.42.108 0:0:0:0:0:ffff:a65a:2a6c
166.90.42.109 0:0:0:0:0:ffff:a65a:2a6d
166.90.42.110 0:0:0:0:0:ffff:a65a:2a6e
166.90.42.111 0:0:0:0:0:ffff:a65a:2a6f
166.90.42.112 0:0:0:0:0:ffff:a65a:2a70
166.90.42.113 0:0:0:0:0:ffff:a65a:2a71
166.90.42.114 0:0:0:0:0:ffff:a65a:2a72
166.90.42.115 0:0:0:0:0:ffff:a65a:2a73
166.90.42.116 0:0:0:0:0:ffff:a65a:2a74
166.90.42.117 0:0:0:0:0:ffff:a65a:2a75
166.90.42.118 0:0:0:0:0:ffff:a65a:2a76
166.90.42.119 0:0:0:0:0:ffff:a65a:2a77
166.90.42.120 0:0:0:0:0:ffff:a65a:2a78


166.90.42.121 0:0:0:0:0:ffff:a65a:2a79
166.90.42.122 0:0:0:0:0:ffff:a65a:2a7a
166.90.42.123 0:0:0:0:0:ffff:a65a:2a7b
166.90.42.124 0:0:0:0:0:ffff:a65a:2a7c
166.90.42.125 0:0:0:0:0:ffff:a65a:2a7d
166.90.42.126 0:0:0:0:0:ffff:a65a:2a7e
166.90.42.127 0:0:0:0:0:ffff:a65a:2a7f
166.90.42.128 0:0:0:0:0:ffff:a65a:2a80
166.90.42.129 0:0:0:0:0:ffff:a65a:2a81
166.90.42.130 0:0:0:0:0:ffff:a65a:2a82
166.90.42.131 0:0:0:0:0:ffff:a65a:2a83
166.90.42.132 0:0:0:0:0:ffff:a65a:2a84
166.90.42.133 0:0:0:0:0:ffff:a65a:2a85
166.90.42.134 0:0:0:0:0:ffff:a65a:2a86
166.90.42.135 0:0:0:0:0:ffff:a65a:2a87
166.90.42.136 0:0:0:0:0:ffff:a65a:2a88
166.90.42.137 0:0:0:0:0:ffff:a65a:2a89
166.90.42.138 0:0:0:0:0:ffff:a65a:2a8a
166.90.42.139 0:0:0:0:0:ffff:a65a:2a8b
166.90.42.140 0:0:0:0:0:ffff:a65a:2a8c
166.90.42.141 0:0:0:0:0:ffff:a65a:2a8d
166.90.42.142 0:0:0:0:0:ffff:a65a:2a8e
166.90.42.143 0:0:0:0:0:ffff:a65a:2a8f
166.90.42.144 0:0:0:0:0:ffff:a65a:2a90
166.90.42.145 0:0:0:0:0:ffff:a65a:2a91
166.90.42.146 0:0:0:0:0:ffff:a65a:2a92
166.90.42.147 0:0:0:0:0:ffff:a65a:2a93
166.90.42.148 0:0:0:0:0:ffff:a65a:2a94
166.90.42.149 0:0:0:0:0:ffff:a65a:2a95
166.90.42.150 0:0:0:0:0:ffff:a65a:2a96
166.90.42.151 0:0:0:0:0:ffff:a65a:2a97
166.90.42.152 0:0:0:0:0:ffff:a65a:2a98
166.90.42.153 0:0:0:0:0:ffff:a65a:2a99
166.90.42.154 0:0:0:0:0:ffff:a65a:2a9a
166.90.42.155 0:0:0:0:0:ffff:a65a:2a9b
166.90.42.156 0:0:0:0:0:ffff:a65a:2a9c
166.90.42.157 0:0:0:0:0:ffff:a65a:2a9d
166.90.42.158 0:0:0:0:0:ffff:a65a:2a9e
166.90.42.159 0:0:0:0:0:ffff:a65a:2a9f
166.90.42.160 0:0:0:0:0:ffff:a65a:2aa0
166.90.42.161 0:0:0:0:0:ffff:a65a:2aa1
166.90.42.162 0:0:0:0:0:ffff:a65a:2aa2
166.90.42.163 0:0:0:0:0:ffff:a65a:2aa3
166.90.42.164 0:0:0:0:0:ffff:a65a:2aa4
166.90.42.165 0:0:0:0:0:ffff:a65a:2aa5
166.90.42.166 0:0:0:0:0:ffff:a65a:2aa6
166.90.42.167 0:0:0:0:0:ffff:a65a:2aa7
166.90.42.168 0:0:0:0:0:ffff:a65a:2aa8
166.90.42.169 0:0:0:0:0:ffff:a65a:2aa9
166.90.42.170 0:0:0:0:0:ffff:a65a:2aaa
166.90.42.171 0:0:0:0:0:ffff:a65a:2aab
166.90.42.172 0:0:0:0:0:ffff:a65a:2aac
166.90.42.173 0:0:0:0:0:ffff:a65a:2aad
166.90.42.174 0:0:0:0:0:ffff:a65a:2aae
166.90.42.175 0:0:0:0:0:ffff:a65a:2aaf
166.90.42.176 0:0:0:0:0:ffff:a65a:2ab0
166.90.42.177 0:0:0:0:0:ffff:a65a:2ab1
166.90.42.178 0:0:0:0:0:ffff:a65a:2ab2
166.90.42.179 0:0:0:0:0:ffff:a65a:2ab3
166.90.42.180 0:0:0:0:0:ffff:a65a:2ab4


166.90.42.181 0:0:0:0:0:ffff:a65a:2ab5
166.90.42.182 0:0:0:0:0:ffff:a65a:2ab6
166.90.42.183 0:0:0:0:0:ffff:a65a:2ab7
166.90.42.184 0:0:0:0:0:ffff:a65a:2ab8
166.90.42.185 0:0:0:0:0:ffff:a65a:2ab9
166.90.42.186 0:0:0:0:0:ffff:a65a:2aba
166.90.42.187 0:0:0:0:0:ffff:a65a:2abb
166.90.42.188 0:0:0:0:0:ffff:a65a:2abc
166.90.42.189 0:0:0:0:0:ffff:a65a:2abd
166.90.42.190 0:0:0:0:0:ffff:a65a:2abe
166.90.42.191 0:0:0:0:0:ffff:a65a:2abf
166.90.42.192 0:0:0:0:0:ffff:a65a:2ac0
166.90.42.193 0:0:0:0:0:ffff:a65a:2ac1
166.90.42.194 0:0:0:0:0:ffff:a65a:2ac2
166.90.42.195 0:0:0:0:0:ffff:a65a:2ac3
166.90.42.196 0:0:0:0:0:ffff:a65a:2ac4
166.90.42.197 0:0:0:0:0:ffff:a65a:2ac5
166.90.42.198 0:0:0:0:0:ffff:a65a:2ac6
166.90.42.199 0:0:0:0:0:ffff:a65a:2ac7
166.90.42.200 0:0:0:0:0:ffff:a65a:2ac8
166.90.42.201 0:0:0:0:0:ffff:a65a:2ac9
166.90.42.202 0:0:0:0:0:ffff:a65a:2aca
166.90.42.203 0:0:0:0:0:ffff:a65a:2acb
166.90.42.204 0:0:0:0:0:ffff:a65a:2acc
166.90.42.205 0:0:0:0:0:ffff:a65a:2acd
166.90.42.206 0:0:0:0:0:ffff:a65a:2ace
166.90.42.207 0:0:0:0:0:ffff:a65a:2acf
166.90.42.208 0:0:0:0:0:ffff:a65a:2ad0
166.90.42.209 0:0:0:0:0:ffff:a65a:2ad1
166.90.42.210 0:0:0:0:0:ffff:a65a:2ad2
166.90.42.211 0:0:0:0:0:ffff:a65a:2ad3
166.90.42.212 0:0:0:0:0:ffff:a65a:2ad4
166.90.42.213 0:0:0:0:0:ffff:a65a:2ad5
166.90.42.214 0:0:0:0:0:ffff:a65a:2ad6
166.90.42.215 0:0:0:0:0:ffff:a65a:2ad7
166.90.42.216 0:0:0:0:0:ffff:a65a:2ad8
166.90.42.217 0:0:0:0:0:ffff:a65a:2ad9
166.90.42.218 0:0:0:0:0:ffff:a65a:2ada
166.90.42.219 0:0:0:0:0:ffff:a65a:2adb
166.90.42.220 0:0:0:0:0:ffff:a65a:2adc
166.90.42.221 0:0:0:0:0:ffff:a65a:2add
166.90.42.222 0:0:0:0:0:ffff:a65a:2ade
166.90.42.223 0:0:0:0:0:ffff:a65a:2adf
166.90.42.224 0:0:0:0:0:ffff:a65a:2ae0
166.90.42.225 0:0:0:0:0:ffff:a65a:2ae1
166.90.42.226 0:0:0:0:0:ffff:a65a:2ae2
166.90.42.227 0:0:0:0:0:ffff:a65a:2ae3
166.90.42.228 0:0:0:0:0:ffff:a65a:2ae4
166.90.42.229 0:0:0:0:0:ffff:a65a:2ae5
166.90.42.230 0:0:0:0:0:ffff:a65a:2ae6
166.90.42.231 0:0:0:0:0:ffff:a65a:2ae7
166.90.42.232 0:0:0:0:0:ffff:a65a:2ae8
166.90.42.233 0:0:0:0:0:ffff:a65a:2ae9
166.90.42.234 0:0:0:0:0:ffff:a65a:2aea
166.90.42.235 0:0:0:0:0:ffff:a65a:2aeb
166.90.42.236 0:0:0:0:0:ffff:a65a:2aec
166.90.42.237 0:0:0:0:0:ffff:a65a:2aed
166.90.42.238 0:0:0:0:0:ffff:a65a:2aee
166.90.42.239 0:0:0:0:0:ffff:a65a:2aef
166.90.42.240 0:0:0:0:0:ffff:a65a:2af0
166.90.42.241 0:0:0:0:0:ffff:a65a:2af1
166.90.42.242 0:0:0:0:0:ffff:a65a:2af2
166.90.42.243 0:0:0:0:0:ffff:a65a:2af3
166.90.42.244 0:0:0:0:0:ffff:a65a:2af4
166.90.42.245 0:0:0:0:0:ffff:a65a:2af5
166.90.42.246 0:0:0:0:0:ffff:a65a:2af6
166.90.42.247 0:0:0:0:0:ffff:a65a:2af7
166.90.42.248 0:0:0:0:0:ffff:a65a:2af8
166.90.42.249 0:0:0:0:0:ffff:a65a:2af9
166.90.42.250 0:0:0:0:0:ffff:a65a:2afa
166.90.42.251 0:0:0:0:0:ffff:a65a:2afb
166.90.42.252 0:0:0:0:0:ffff:a65a:2afc
166.90.42.253 0:0:0:0:0:ffff:a65a:2afd
166.90.42.254 0:0:0:0:0:ffff:a65a:2afe
166.90.42.255 0:0:0:0:0:ffff:a65a: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.