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
166.90.205.1 0:0:0:0:0:ffff:a65a:cd01
166.90.205.2 0:0:0:0:0:ffff:a65a:cd02
166.90.205.3 0:0:0:0:0:ffff:a65a:cd03
166.90.205.4 0:0:0:0:0:ffff:a65a:cd04
166.90.205.5 0:0:0:0:0:ffff:a65a:cd05
166.90.205.6 0:0:0:0:0:ffff:a65a:cd06
166.90.205.7 0:0:0:0:0:ffff:a65a:cd07
166.90.205.8 0:0:0:0:0:ffff:a65a:cd08
166.90.205.9 0:0:0:0:0:ffff:a65a:cd09
166.90.205.10 0:0:0:0:0:ffff:a65a:cd0a
166.90.205.11 0:0:0:0:0:ffff:a65a:cd0b
166.90.205.12 0:0:0:0:0:ffff:a65a:cd0c
166.90.205.13 0:0:0:0:0:ffff:a65a:cd0d
166.90.205.14 0:0:0:0:0:ffff:a65a:cd0e
166.90.205.15 0:0:0:0:0:ffff:a65a:cd0f
166.90.205.16 0:0:0:0:0:ffff:a65a:cd10
166.90.205.17 0:0:0:0:0:ffff:a65a:cd11
166.90.205.18 0:0:0:0:0:ffff:a65a:cd12
166.90.205.19 0:0:0:0:0:ffff:a65a:cd13
166.90.205.20 0:0:0:0:0:ffff:a65a:cd14
166.90.205.21 0:0:0:0:0:ffff:a65a:cd15
166.90.205.22 0:0:0:0:0:ffff:a65a:cd16
166.90.205.23 0:0:0:0:0:ffff:a65a:cd17
166.90.205.24 0:0:0:0:0:ffff:a65a:cd18
166.90.205.25 0:0:0:0:0:ffff:a65a:cd19
166.90.205.26 0:0:0:0:0:ffff:a65a:cd1a
166.90.205.27 0:0:0:0:0:ffff:a65a:cd1b
166.90.205.28 0:0:0:0:0:ffff:a65a:cd1c
166.90.205.29 0:0:0:0:0:ffff:a65a:cd1d
166.90.205.30 0:0:0:0:0:ffff:a65a:cd1e
166.90.205.31 0:0:0:0:0:ffff:a65a:cd1f
166.90.205.32 0:0:0:0:0:ffff:a65a:cd20
166.90.205.33 0:0:0:0:0:ffff:a65a:cd21
166.90.205.34 0:0:0:0:0:ffff:a65a:cd22
166.90.205.35 0:0:0:0:0:ffff:a65a:cd23
166.90.205.36 0:0:0:0:0:ffff:a65a:cd24
166.90.205.37 0:0:0:0:0:ffff:a65a:cd25
166.90.205.38 0:0:0:0:0:ffff:a65a:cd26
166.90.205.39 0:0:0:0:0:ffff:a65a:cd27
166.90.205.40 0:0:0:0:0:ffff:a65a:cd28
166.90.205.41 0:0:0:0:0:ffff:a65a:cd29
166.90.205.42 0:0:0:0:0:ffff:a65a:cd2a
166.90.205.43 0:0:0:0:0:ffff:a65a:cd2b
166.90.205.44 0:0:0:0:0:ffff:a65a:cd2c
166.90.205.45 0:0:0:0:0:ffff:a65a:cd2d
166.90.205.46 0:0:0:0:0:ffff:a65a:cd2e
166.90.205.47 0:0:0:0:0:ffff:a65a:cd2f
166.90.205.48 0:0:0:0:0:ffff:a65a:cd30
166.90.205.49 0:0:0:0:0:ffff:a65a:cd31
166.90.205.50 0:0:0:0:0:ffff:a65a:cd32
166.90.205.51 0:0:0:0:0:ffff:a65a:cd33
166.90.205.52 0:0:0:0:0:ffff:a65a:cd34
166.90.205.53 0:0:0:0:0:ffff:a65a:cd35
166.90.205.54 0:0:0:0:0:ffff:a65a:cd36
166.90.205.55 0:0:0:0:0:ffff:a65a:cd37
166.90.205.56 0:0:0:0:0:ffff:a65a:cd38
166.90.205.57 0:0:0:0:0:ffff:a65a:cd39
166.90.205.58 0:0:0:0:0:ffff:a65a:cd3a
166.90.205.59 0:0:0:0:0:ffff:a65a:cd3b
166.90.205.60 0:0:0:0:0:ffff:a65a:cd3c


166.90.205.61 0:0:0:0:0:ffff:a65a:cd3d
166.90.205.62 0:0:0:0:0:ffff:a65a:cd3e
166.90.205.63 0:0:0:0:0:ffff:a65a:cd3f
166.90.205.64 0:0:0:0:0:ffff:a65a:cd40
166.90.205.65 0:0:0:0:0:ffff:a65a:cd41
166.90.205.66 0:0:0:0:0:ffff:a65a:cd42
166.90.205.67 0:0:0:0:0:ffff:a65a:cd43
166.90.205.68 0:0:0:0:0:ffff:a65a:cd44
166.90.205.69 0:0:0:0:0:ffff:a65a:cd45
166.90.205.70 0:0:0:0:0:ffff:a65a:cd46
166.90.205.71 0:0:0:0:0:ffff:a65a:cd47
166.90.205.72 0:0:0:0:0:ffff:a65a:cd48
166.90.205.73 0:0:0:0:0:ffff:a65a:cd49
166.90.205.74 0:0:0:0:0:ffff:a65a:cd4a
166.90.205.75 0:0:0:0:0:ffff:a65a:cd4b
166.90.205.76 0:0:0:0:0:ffff:a65a:cd4c
166.90.205.77 0:0:0:0:0:ffff:a65a:cd4d
166.90.205.78 0:0:0:0:0:ffff:a65a:cd4e
166.90.205.79 0:0:0:0:0:ffff:a65a:cd4f
166.90.205.80 0:0:0:0:0:ffff:a65a:cd50
166.90.205.81 0:0:0:0:0:ffff:a65a:cd51
166.90.205.82 0:0:0:0:0:ffff:a65a:cd52
166.90.205.83 0:0:0:0:0:ffff:a65a:cd53
166.90.205.84 0:0:0:0:0:ffff:a65a:cd54
166.90.205.85 0:0:0:0:0:ffff:a65a:cd55
166.90.205.86 0:0:0:0:0:ffff:a65a:cd56
166.90.205.87 0:0:0:0:0:ffff:a65a:cd57
166.90.205.88 0:0:0:0:0:ffff:a65a:cd58
166.90.205.89 0:0:0:0:0:ffff:a65a:cd59
166.90.205.90 0:0:0:0:0:ffff:a65a:cd5a
166.90.205.91 0:0:0:0:0:ffff:a65a:cd5b
166.90.205.92 0:0:0:0:0:ffff:a65a:cd5c
166.90.205.93 0:0:0:0:0:ffff:a65a:cd5d
166.90.205.94 0:0:0:0:0:ffff:a65a:cd5e
166.90.205.95 0:0:0:0:0:ffff:a65a:cd5f
166.90.205.96 0:0:0:0:0:ffff:a65a:cd60
166.90.205.97 0:0:0:0:0:ffff:a65a:cd61
166.90.205.98 0:0:0:0:0:ffff:a65a:cd62
166.90.205.99 0:0:0:0:0:ffff:a65a:cd63
166.90.205.100 0:0:0:0:0:ffff:a65a:cd64
166.90.205.101 0:0:0:0:0:ffff:a65a:cd65
166.90.205.102 0:0:0:0:0:ffff:a65a:cd66
166.90.205.103 0:0:0:0:0:ffff:a65a:cd67
166.90.205.104 0:0:0:0:0:ffff:a65a:cd68
166.90.205.105 0:0:0:0:0:ffff:a65a:cd69
166.90.205.106 0:0:0:0:0:ffff:a65a:cd6a
166.90.205.107 0:0:0:0:0:ffff:a65a:cd6b
166.90.205.108 0:0:0:0:0:ffff:a65a:cd6c
166.90.205.109 0:0:0:0:0:ffff:a65a:cd6d
166.90.205.110 0:0:0:0:0:ffff:a65a:cd6e
166.90.205.111 0:0:0:0:0:ffff:a65a:cd6f
166.90.205.112 0:0:0:0:0:ffff:a65a:cd70
166.90.205.113 0:0:0:0:0:ffff:a65a:cd71
166.90.205.114 0:0:0:0:0:ffff:a65a:cd72
166.90.205.115 0:0:0:0:0:ffff:a65a:cd73
166.90.205.116 0:0:0:0:0:ffff:a65a:cd74
166.90.205.117 0:0:0:0:0:ffff:a65a:cd75
166.90.205.118 0:0:0:0:0:ffff:a65a:cd76
166.90.205.119 0:0:0:0:0:ffff:a65a:cd77
166.90.205.120 0:0:0:0:0:ffff:a65a:cd78


166.90.205.121 0:0:0:0:0:ffff:a65a:cd79
166.90.205.122 0:0:0:0:0:ffff:a65a:cd7a
166.90.205.123 0:0:0:0:0:ffff:a65a:cd7b
166.90.205.124 0:0:0:0:0:ffff:a65a:cd7c
166.90.205.125 0:0:0:0:0:ffff:a65a:cd7d
166.90.205.126 0:0:0:0:0:ffff:a65a:cd7e
166.90.205.127 0:0:0:0:0:ffff:a65a:cd7f
166.90.205.128 0:0:0:0:0:ffff:a65a:cd80
166.90.205.129 0:0:0:0:0:ffff:a65a:cd81
166.90.205.130 0:0:0:0:0:ffff:a65a:cd82
166.90.205.131 0:0:0:0:0:ffff:a65a:cd83
166.90.205.132 0:0:0:0:0:ffff:a65a:cd84
166.90.205.133 0:0:0:0:0:ffff:a65a:cd85
166.90.205.134 0:0:0:0:0:ffff:a65a:cd86
166.90.205.135 0:0:0:0:0:ffff:a65a:cd87
166.90.205.136 0:0:0:0:0:ffff:a65a:cd88
166.90.205.137 0:0:0:0:0:ffff:a65a:cd89
166.90.205.138 0:0:0:0:0:ffff:a65a:cd8a
166.90.205.139 0:0:0:0:0:ffff:a65a:cd8b
166.90.205.140 0:0:0:0:0:ffff:a65a:cd8c
166.90.205.141 0:0:0:0:0:ffff:a65a:cd8d
166.90.205.142 0:0:0:0:0:ffff:a65a:cd8e
166.90.205.143 0:0:0:0:0:ffff:a65a:cd8f
166.90.205.144 0:0:0:0:0:ffff:a65a:cd90
166.90.205.145 0:0:0:0:0:ffff:a65a:cd91
166.90.205.146 0:0:0:0:0:ffff:a65a:cd92
166.90.205.147 0:0:0:0:0:ffff:a65a:cd93
166.90.205.148 0:0:0:0:0:ffff:a65a:cd94
166.90.205.149 0:0:0:0:0:ffff:a65a:cd95
166.90.205.150 0:0:0:0:0:ffff:a65a:cd96
166.90.205.151 0:0:0:0:0:ffff:a65a:cd97
166.90.205.152 0:0:0:0:0:ffff:a65a:cd98
166.90.205.153 0:0:0:0:0:ffff:a65a:cd99
166.90.205.154 0:0:0:0:0:ffff:a65a:cd9a
166.90.205.155 0:0:0:0:0:ffff:a65a:cd9b
166.90.205.156 0:0:0:0:0:ffff:a65a:cd9c
166.90.205.157 0:0:0:0:0:ffff:a65a:cd9d
166.90.205.158 0:0:0:0:0:ffff:a65a:cd9e
166.90.205.159 0:0:0:0:0:ffff:a65a:cd9f
166.90.205.160 0:0:0:0:0:ffff:a65a:cda0
166.90.205.161 0:0:0:0:0:ffff:a65a:cda1
166.90.205.162 0:0:0:0:0:ffff:a65a:cda2
166.90.205.163 0:0:0:0:0:ffff:a65a:cda3
166.90.205.164 0:0:0:0:0:ffff:a65a:cda4
166.90.205.165 0:0:0:0:0:ffff:a65a:cda5
166.90.205.166 0:0:0:0:0:ffff:a65a:cda6
166.90.205.167 0:0:0:0:0:ffff:a65a:cda7
166.90.205.168 0:0:0:0:0:ffff:a65a:cda8
166.90.205.169 0:0:0:0:0:ffff:a65a:cda9
166.90.205.170 0:0:0:0:0:ffff:a65a:cdaa
166.90.205.171 0:0:0:0:0:ffff:a65a:cdab
166.90.205.172 0:0:0:0:0:ffff:a65a:cdac
166.90.205.173 0:0:0:0:0:ffff:a65a:cdad
166.90.205.174 0:0:0:0:0:ffff:a65a:cdae
166.90.205.175 0:0:0:0:0:ffff:a65a:cdaf
166.90.205.176 0:0:0:0:0:ffff:a65a:cdb0
166.90.205.177 0:0:0:0:0:ffff:a65a:cdb1
166.90.205.178 0:0:0:0:0:ffff:a65a:cdb2
166.90.205.179 0:0:0:0:0:ffff:a65a:cdb3
166.90.205.180 0:0:0:0:0:ffff:a65a:cdb4


166.90.205.181 0:0:0:0:0:ffff:a65a:cdb5
166.90.205.182 0:0:0:0:0:ffff:a65a:cdb6
166.90.205.183 0:0:0:0:0:ffff:a65a:cdb7
166.90.205.184 0:0:0:0:0:ffff:a65a:cdb8
166.90.205.185 0:0:0:0:0:ffff:a65a:cdb9
166.90.205.186 0:0:0:0:0:ffff:a65a:cdba
166.90.205.187 0:0:0:0:0:ffff:a65a:cdbb
166.90.205.188 0:0:0:0:0:ffff:a65a:cdbc
166.90.205.189 0:0:0:0:0:ffff:a65a:cdbd
166.90.205.190 0:0:0:0:0:ffff:a65a:cdbe
166.90.205.191 0:0:0:0:0:ffff:a65a:cdbf
166.90.205.192 0:0:0:0:0:ffff:a65a:cdc0
166.90.205.193 0:0:0:0:0:ffff:a65a:cdc1
166.90.205.194 0:0:0:0:0:ffff:a65a:cdc2
166.90.205.195 0:0:0:0:0:ffff:a65a:cdc3
166.90.205.196 0:0:0:0:0:ffff:a65a:cdc4
166.90.205.197 0:0:0:0:0:ffff:a65a:cdc5
166.90.205.198 0:0:0:0:0:ffff:a65a:cdc6
166.90.205.199 0:0:0:0:0:ffff:a65a:cdc7
166.90.205.200 0:0:0:0:0:ffff:a65a:cdc8
166.90.205.201 0:0:0:0:0:ffff:a65a:cdc9
166.90.205.202 0:0:0:0:0:ffff:a65a:cdca
166.90.205.203 0:0:0:0:0:ffff:a65a:cdcb
166.90.205.204 0:0:0:0:0:ffff:a65a:cdcc
166.90.205.205 0:0:0:0:0:ffff:a65a:cdcd
166.90.205.206 0:0:0:0:0:ffff:a65a:cdce
166.90.205.207 0:0:0:0:0:ffff:a65a:cdcf
166.90.205.208 0:0:0:0:0:ffff:a65a:cdd0
166.90.205.209 0:0:0:0:0:ffff:a65a:cdd1
166.90.205.210 0:0:0:0:0:ffff:a65a:cdd2
166.90.205.211 0:0:0:0:0:ffff:a65a:cdd3
166.90.205.212 0:0:0:0:0:ffff:a65a:cdd4
166.90.205.213 0:0:0:0:0:ffff:a65a:cdd5
166.90.205.214 0:0:0:0:0:ffff:a65a:cdd6
166.90.205.215 0:0:0:0:0:ffff:a65a:cdd7
166.90.205.216 0:0:0:0:0:ffff:a65a:cdd8
166.90.205.217 0:0:0:0:0:ffff:a65a:cdd9
166.90.205.218 0:0:0:0:0:ffff:a65a:cdda
166.90.205.219 0:0:0:0:0:ffff:a65a:cddb
166.90.205.220 0:0:0:0:0:ffff:a65a:cddc
166.90.205.221 0:0:0:0:0:ffff:a65a:cddd
166.90.205.222 0:0:0:0:0:ffff:a65a:cdde
166.90.205.223 0:0:0:0:0:ffff:a65a:cddf
166.90.205.224 0:0:0:0:0:ffff:a65a:cde0
166.90.205.225 0:0:0:0:0:ffff:a65a:cde1
166.90.205.226 0:0:0:0:0:ffff:a65a:cde2
166.90.205.227 0:0:0:0:0:ffff:a65a:cde3
166.90.205.228 0:0:0:0:0:ffff:a65a:cde4
166.90.205.229 0:0:0:0:0:ffff:a65a:cde5
166.90.205.230 0:0:0:0:0:ffff:a65a:cde6
166.90.205.231 0:0:0:0:0:ffff:a65a:cde7
166.90.205.232 0:0:0:0:0:ffff:a65a:cde8
166.90.205.233 0:0:0:0:0:ffff:a65a:cde9
166.90.205.234 0:0:0:0:0:ffff:a65a:cdea
166.90.205.235 0:0:0:0:0:ffff:a65a:cdeb
166.90.205.236 0:0:0:0:0:ffff:a65a:cdec
166.90.205.237 0:0:0:0:0:ffff:a65a:cded
166.90.205.238 0:0:0:0:0:ffff:a65a:cdee
166.90.205.239 0:0:0:0:0:ffff:a65a:cdef
166.90.205.240 0:0:0:0:0:ffff:a65a:cdf0
166.90.205.241 0:0:0:0:0:ffff:a65a:cdf1
166.90.205.242 0:0:0:0:0:ffff:a65a:cdf2
166.90.205.243 0:0:0:0:0:ffff:a65a:cdf3
166.90.205.244 0:0:0:0:0:ffff:a65a:cdf4
166.90.205.245 0:0:0:0:0:ffff:a65a:cdf5
166.90.205.246 0:0:0:0:0:ffff:a65a:cdf6
166.90.205.247 0:0:0:0:0:ffff:a65a:cdf7
166.90.205.248 0:0:0:0:0:ffff:a65a:cdf8
166.90.205.249 0:0:0:0:0:ffff:a65a:cdf9
166.90.205.250 0:0:0:0:0:ffff:a65a:cdfa
166.90.205.251 0:0:0:0:0:ffff:a65a:cdfb
166.90.205.252 0:0:0:0:0:ffff:a65a:cdfc
166.90.205.253 0:0:0:0:0:ffff:a65a:cdfd
166.90.205.254 0:0:0:0:0:ffff:a65a:cdfe
166.90.205.255 0:0:0:0:0:ffff:a65a:cdff


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.