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
166.90.185.1 0:0:0:0:0:ffff:a65a:b901
166.90.185.2 0:0:0:0:0:ffff:a65a:b902
166.90.185.3 0:0:0:0:0:ffff:a65a:b903
166.90.185.4 0:0:0:0:0:ffff:a65a:b904
166.90.185.5 0:0:0:0:0:ffff:a65a:b905
166.90.185.6 0:0:0:0:0:ffff:a65a:b906
166.90.185.7 0:0:0:0:0:ffff:a65a:b907
166.90.185.8 0:0:0:0:0:ffff:a65a:b908
166.90.185.9 0:0:0:0:0:ffff:a65a:b909
166.90.185.10 0:0:0:0:0:ffff:a65a:b90a
166.90.185.11 0:0:0:0:0:ffff:a65a:b90b
166.90.185.12 0:0:0:0:0:ffff:a65a:b90c
166.90.185.13 0:0:0:0:0:ffff:a65a:b90d
166.90.185.14 0:0:0:0:0:ffff:a65a:b90e
166.90.185.15 0:0:0:0:0:ffff:a65a:b90f
166.90.185.16 0:0:0:0:0:ffff:a65a:b910
166.90.185.17 0:0:0:0:0:ffff:a65a:b911
166.90.185.18 0:0:0:0:0:ffff:a65a:b912
166.90.185.19 0:0:0:0:0:ffff:a65a:b913
166.90.185.20 0:0:0:0:0:ffff:a65a:b914
166.90.185.21 0:0:0:0:0:ffff:a65a:b915
166.90.185.22 0:0:0:0:0:ffff:a65a:b916
166.90.185.23 0:0:0:0:0:ffff:a65a:b917
166.90.185.24 0:0:0:0:0:ffff:a65a:b918
166.90.185.25 0:0:0:0:0:ffff:a65a:b919
166.90.185.26 0:0:0:0:0:ffff:a65a:b91a
166.90.185.27 0:0:0:0:0:ffff:a65a:b91b
166.90.185.28 0:0:0:0:0:ffff:a65a:b91c
166.90.185.29 0:0:0:0:0:ffff:a65a:b91d
166.90.185.30 0:0:0:0:0:ffff:a65a:b91e
166.90.185.31 0:0:0:0:0:ffff:a65a:b91f
166.90.185.32 0:0:0:0:0:ffff:a65a:b920
166.90.185.33 0:0:0:0:0:ffff:a65a:b921
166.90.185.34 0:0:0:0:0:ffff:a65a:b922
166.90.185.35 0:0:0:0:0:ffff:a65a:b923
166.90.185.36 0:0:0:0:0:ffff:a65a:b924
166.90.185.37 0:0:0:0:0:ffff:a65a:b925
166.90.185.38 0:0:0:0:0:ffff:a65a:b926
166.90.185.39 0:0:0:0:0:ffff:a65a:b927
166.90.185.40 0:0:0:0:0:ffff:a65a:b928
166.90.185.41 0:0:0:0:0:ffff:a65a:b929
166.90.185.42 0:0:0:0:0:ffff:a65a:b92a
166.90.185.43 0:0:0:0:0:ffff:a65a:b92b
166.90.185.44 0:0:0:0:0:ffff:a65a:b92c
166.90.185.45 0:0:0:0:0:ffff:a65a:b92d
166.90.185.46 0:0:0:0:0:ffff:a65a:b92e
166.90.185.47 0:0:0:0:0:ffff:a65a:b92f
166.90.185.48 0:0:0:0:0:ffff:a65a:b930
166.90.185.49 0:0:0:0:0:ffff:a65a:b931
166.90.185.50 0:0:0:0:0:ffff:a65a:b932
166.90.185.51 0:0:0:0:0:ffff:a65a:b933
166.90.185.52 0:0:0:0:0:ffff:a65a:b934
166.90.185.53 0:0:0:0:0:ffff:a65a:b935
166.90.185.54 0:0:0:0:0:ffff:a65a:b936
166.90.185.55 0:0:0:0:0:ffff:a65a:b937
166.90.185.56 0:0:0:0:0:ffff:a65a:b938
166.90.185.57 0:0:0:0:0:ffff:a65a:b939
166.90.185.58 0:0:0:0:0:ffff:a65a:b93a
166.90.185.59 0:0:0:0:0:ffff:a65a:b93b
166.90.185.60 0:0:0:0:0:ffff:a65a:b93c


166.90.185.61 0:0:0:0:0:ffff:a65a:b93d
166.90.185.62 0:0:0:0:0:ffff:a65a:b93e
166.90.185.63 0:0:0:0:0:ffff:a65a:b93f
166.90.185.64 0:0:0:0:0:ffff:a65a:b940
166.90.185.65 0:0:0:0:0:ffff:a65a:b941
166.90.185.66 0:0:0:0:0:ffff:a65a:b942
166.90.185.67 0:0:0:0:0:ffff:a65a:b943
166.90.185.68 0:0:0:0:0:ffff:a65a:b944
166.90.185.69 0:0:0:0:0:ffff:a65a:b945
166.90.185.70 0:0:0:0:0:ffff:a65a:b946
166.90.185.71 0:0:0:0:0:ffff:a65a:b947
166.90.185.72 0:0:0:0:0:ffff:a65a:b948
166.90.185.73 0:0:0:0:0:ffff:a65a:b949
166.90.185.74 0:0:0:0:0:ffff:a65a:b94a
166.90.185.75 0:0:0:0:0:ffff:a65a:b94b
166.90.185.76 0:0:0:0:0:ffff:a65a:b94c
166.90.185.77 0:0:0:0:0:ffff:a65a:b94d
166.90.185.78 0:0:0:0:0:ffff:a65a:b94e
166.90.185.79 0:0:0:0:0:ffff:a65a:b94f
166.90.185.80 0:0:0:0:0:ffff:a65a:b950
166.90.185.81 0:0:0:0:0:ffff:a65a:b951
166.90.185.82 0:0:0:0:0:ffff:a65a:b952
166.90.185.83 0:0:0:0:0:ffff:a65a:b953
166.90.185.84 0:0:0:0:0:ffff:a65a:b954
166.90.185.85 0:0:0:0:0:ffff:a65a:b955
166.90.185.86 0:0:0:0:0:ffff:a65a:b956
166.90.185.87 0:0:0:0:0:ffff:a65a:b957
166.90.185.88 0:0:0:0:0:ffff:a65a:b958
166.90.185.89 0:0:0:0:0:ffff:a65a:b959
166.90.185.90 0:0:0:0:0:ffff:a65a:b95a
166.90.185.91 0:0:0:0:0:ffff:a65a:b95b
166.90.185.92 0:0:0:0:0:ffff:a65a:b95c
166.90.185.93 0:0:0:0:0:ffff:a65a:b95d
166.90.185.94 0:0:0:0:0:ffff:a65a:b95e
166.90.185.95 0:0:0:0:0:ffff:a65a:b95f
166.90.185.96 0:0:0:0:0:ffff:a65a:b960
166.90.185.97 0:0:0:0:0:ffff:a65a:b961
166.90.185.98 0:0:0:0:0:ffff:a65a:b962
166.90.185.99 0:0:0:0:0:ffff:a65a:b963
166.90.185.100 0:0:0:0:0:ffff:a65a:b964
166.90.185.101 0:0:0:0:0:ffff:a65a:b965
166.90.185.102 0:0:0:0:0:ffff:a65a:b966
166.90.185.103 0:0:0:0:0:ffff:a65a:b967
166.90.185.104 0:0:0:0:0:ffff:a65a:b968
166.90.185.105 0:0:0:0:0:ffff:a65a:b969
166.90.185.106 0:0:0:0:0:ffff:a65a:b96a
166.90.185.107 0:0:0:0:0:ffff:a65a:b96b
166.90.185.108 0:0:0:0:0:ffff:a65a:b96c
166.90.185.109 0:0:0:0:0:ffff:a65a:b96d
166.90.185.110 0:0:0:0:0:ffff:a65a:b96e
166.90.185.111 0:0:0:0:0:ffff:a65a:b96f
166.90.185.112 0:0:0:0:0:ffff:a65a:b970
166.90.185.113 0:0:0:0:0:ffff:a65a:b971
166.90.185.114 0:0:0:0:0:ffff:a65a:b972
166.90.185.115 0:0:0:0:0:ffff:a65a:b973
166.90.185.116 0:0:0:0:0:ffff:a65a:b974
166.90.185.117 0:0:0:0:0:ffff:a65a:b975
166.90.185.118 0:0:0:0:0:ffff:a65a:b976
166.90.185.119 0:0:0:0:0:ffff:a65a:b977
166.90.185.120 0:0:0:0:0:ffff:a65a:b978


166.90.185.121 0:0:0:0:0:ffff:a65a:b979
166.90.185.122 0:0:0:0:0:ffff:a65a:b97a
166.90.185.123 0:0:0:0:0:ffff:a65a:b97b
166.90.185.124 0:0:0:0:0:ffff:a65a:b97c
166.90.185.125 0:0:0:0:0:ffff:a65a:b97d
166.90.185.126 0:0:0:0:0:ffff:a65a:b97e
166.90.185.127 0:0:0:0:0:ffff:a65a:b97f
166.90.185.128 0:0:0:0:0:ffff:a65a:b980
166.90.185.129 0:0:0:0:0:ffff:a65a:b981
166.90.185.130 0:0:0:0:0:ffff:a65a:b982
166.90.185.131 0:0:0:0:0:ffff:a65a:b983
166.90.185.132 0:0:0:0:0:ffff:a65a:b984
166.90.185.133 0:0:0:0:0:ffff:a65a:b985
166.90.185.134 0:0:0:0:0:ffff:a65a:b986
166.90.185.135 0:0:0:0:0:ffff:a65a:b987
166.90.185.136 0:0:0:0:0:ffff:a65a:b988
166.90.185.137 0:0:0:0:0:ffff:a65a:b989
166.90.185.138 0:0:0:0:0:ffff:a65a:b98a
166.90.185.139 0:0:0:0:0:ffff:a65a:b98b
166.90.185.140 0:0:0:0:0:ffff:a65a:b98c
166.90.185.141 0:0:0:0:0:ffff:a65a:b98d
166.90.185.142 0:0:0:0:0:ffff:a65a:b98e
166.90.185.143 0:0:0:0:0:ffff:a65a:b98f
166.90.185.144 0:0:0:0:0:ffff:a65a:b990
166.90.185.145 0:0:0:0:0:ffff:a65a:b991
166.90.185.146 0:0:0:0:0:ffff:a65a:b992
166.90.185.147 0:0:0:0:0:ffff:a65a:b993
166.90.185.148 0:0:0:0:0:ffff:a65a:b994
166.90.185.149 0:0:0:0:0:ffff:a65a:b995
166.90.185.150 0:0:0:0:0:ffff:a65a:b996
166.90.185.151 0:0:0:0:0:ffff:a65a:b997
166.90.185.152 0:0:0:0:0:ffff:a65a:b998
166.90.185.153 0:0:0:0:0:ffff:a65a:b999
166.90.185.154 0:0:0:0:0:ffff:a65a:b99a
166.90.185.155 0:0:0:0:0:ffff:a65a:b99b
166.90.185.156 0:0:0:0:0:ffff:a65a:b99c
166.90.185.157 0:0:0:0:0:ffff:a65a:b99d
166.90.185.158 0:0:0:0:0:ffff:a65a:b99e
166.90.185.159 0:0:0:0:0:ffff:a65a:b99f
166.90.185.160 0:0:0:0:0:ffff:a65a:b9a0
166.90.185.161 0:0:0:0:0:ffff:a65a:b9a1
166.90.185.162 0:0:0:0:0:ffff:a65a:b9a2
166.90.185.163 0:0:0:0:0:ffff:a65a:b9a3
166.90.185.164 0:0:0:0:0:ffff:a65a:b9a4
166.90.185.165 0:0:0:0:0:ffff:a65a:b9a5
166.90.185.166 0:0:0:0:0:ffff:a65a:b9a6
166.90.185.167 0:0:0:0:0:ffff:a65a:b9a7
166.90.185.168 0:0:0:0:0:ffff:a65a:b9a8
166.90.185.169 0:0:0:0:0:ffff:a65a:b9a9
166.90.185.170 0:0:0:0:0:ffff:a65a:b9aa
166.90.185.171 0:0:0:0:0:ffff:a65a:b9ab
166.90.185.172 0:0:0:0:0:ffff:a65a:b9ac
166.90.185.173 0:0:0:0:0:ffff:a65a:b9ad
166.90.185.174 0:0:0:0:0:ffff:a65a:b9ae
166.90.185.175 0:0:0:0:0:ffff:a65a:b9af
166.90.185.176 0:0:0:0:0:ffff:a65a:b9b0
166.90.185.177 0:0:0:0:0:ffff:a65a:b9b1
166.90.185.178 0:0:0:0:0:ffff:a65a:b9b2
166.90.185.179 0:0:0:0:0:ffff:a65a:b9b3
166.90.185.180 0:0:0:0:0:ffff:a65a:b9b4


166.90.185.181 0:0:0:0:0:ffff:a65a:b9b5
166.90.185.182 0:0:0:0:0:ffff:a65a:b9b6
166.90.185.183 0:0:0:0:0:ffff:a65a:b9b7
166.90.185.184 0:0:0:0:0:ffff:a65a:b9b8
166.90.185.185 0:0:0:0:0:ffff:a65a:b9b9
166.90.185.186 0:0:0:0:0:ffff:a65a:b9ba
166.90.185.187 0:0:0:0:0:ffff:a65a:b9bb
166.90.185.188 0:0:0:0:0:ffff:a65a:b9bc
166.90.185.189 0:0:0:0:0:ffff:a65a:b9bd
166.90.185.190 0:0:0:0:0:ffff:a65a:b9be
166.90.185.191 0:0:0:0:0:ffff:a65a:b9bf
166.90.185.192 0:0:0:0:0:ffff:a65a:b9c0
166.90.185.193 0:0:0:0:0:ffff:a65a:b9c1
166.90.185.194 0:0:0:0:0:ffff:a65a:b9c2
166.90.185.195 0:0:0:0:0:ffff:a65a:b9c3
166.90.185.196 0:0:0:0:0:ffff:a65a:b9c4
166.90.185.197 0:0:0:0:0:ffff:a65a:b9c5
166.90.185.198 0:0:0:0:0:ffff:a65a:b9c6
166.90.185.199 0:0:0:0:0:ffff:a65a:b9c7
166.90.185.200 0:0:0:0:0:ffff:a65a:b9c8
166.90.185.201 0:0:0:0:0:ffff:a65a:b9c9
166.90.185.202 0:0:0:0:0:ffff:a65a:b9ca
166.90.185.203 0:0:0:0:0:ffff:a65a:b9cb
166.90.185.204 0:0:0:0:0:ffff:a65a:b9cc
166.90.185.205 0:0:0:0:0:ffff:a65a:b9cd
166.90.185.206 0:0:0:0:0:ffff:a65a:b9ce
166.90.185.207 0:0:0:0:0:ffff:a65a:b9cf
166.90.185.208 0:0:0:0:0:ffff:a65a:b9d0
166.90.185.209 0:0:0:0:0:ffff:a65a:b9d1
166.90.185.210 0:0:0:0:0:ffff:a65a:b9d2
166.90.185.211 0:0:0:0:0:ffff:a65a:b9d3
166.90.185.212 0:0:0:0:0:ffff:a65a:b9d4
166.90.185.213 0:0:0:0:0:ffff:a65a:b9d5
166.90.185.214 0:0:0:0:0:ffff:a65a:b9d6
166.90.185.215 0:0:0:0:0:ffff:a65a:b9d7
166.90.185.216 0:0:0:0:0:ffff:a65a:b9d8
166.90.185.217 0:0:0:0:0:ffff:a65a:b9d9
166.90.185.218 0:0:0:0:0:ffff:a65a:b9da
166.90.185.219 0:0:0:0:0:ffff:a65a:b9db
166.90.185.220 0:0:0:0:0:ffff:a65a:b9dc
166.90.185.221 0:0:0:0:0:ffff:a65a:b9dd
166.90.185.222 0:0:0:0:0:ffff:a65a:b9de
166.90.185.223 0:0:0:0:0:ffff:a65a:b9df
166.90.185.224 0:0:0:0:0:ffff:a65a:b9e0
166.90.185.225 0:0:0:0:0:ffff:a65a:b9e1
166.90.185.226 0:0:0:0:0:ffff:a65a:b9e2
166.90.185.227 0:0:0:0:0:ffff:a65a:b9e3
166.90.185.228 0:0:0:0:0:ffff:a65a:b9e4
166.90.185.229 0:0:0:0:0:ffff:a65a:b9e5
166.90.185.230 0:0:0:0:0:ffff:a65a:b9e6
166.90.185.231 0:0:0:0:0:ffff:a65a:b9e7
166.90.185.232 0:0:0:0:0:ffff:a65a:b9e8
166.90.185.233 0:0:0:0:0:ffff:a65a:b9e9
166.90.185.234 0:0:0:0:0:ffff:a65a:b9ea
166.90.185.235 0:0:0:0:0:ffff:a65a:b9eb
166.90.185.236 0:0:0:0:0:ffff:a65a:b9ec
166.90.185.237 0:0:0:0:0:ffff:a65a:b9ed
166.90.185.238 0:0:0:0:0:ffff:a65a:b9ee
166.90.185.239 0:0:0:0:0:ffff:a65a:b9ef
166.90.185.240 0:0:0:0:0:ffff:a65a:b9f0
166.90.185.241 0:0:0:0:0:ffff:a65a:b9f1
166.90.185.242 0:0:0:0:0:ffff:a65a:b9f2
166.90.185.243 0:0:0:0:0:ffff:a65a:b9f3
166.90.185.244 0:0:0:0:0:ffff:a65a:b9f4
166.90.185.245 0:0:0:0:0:ffff:a65a:b9f5
166.90.185.246 0:0:0:0:0:ffff:a65a:b9f6
166.90.185.247 0:0:0:0:0:ffff:a65a:b9f7
166.90.185.248 0:0:0:0:0:ffff:a65a:b9f8
166.90.185.249 0:0:0:0:0:ffff:a65a:b9f9
166.90.185.250 0:0:0:0:0:ffff:a65a:b9fa
166.90.185.251 0:0:0:0:0:ffff:a65a:b9fb
166.90.185.252 0:0:0:0:0:ffff:a65a:b9fc
166.90.185.253 0:0:0:0:0:ffff:a65a:b9fd
166.90.185.254 0:0:0:0:0:ffff:a65a:b9fe
166.90.185.255 0:0:0:0:0:ffff:a65a:b9ff


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.