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
66.43.168.1 0:0:0:0:0:ffff:422b:a801
66.43.168.2 0:0:0:0:0:ffff:422b:a802
66.43.168.3 0:0:0:0:0:ffff:422b:a803
66.43.168.4 0:0:0:0:0:ffff:422b:a804
66.43.168.5 0:0:0:0:0:ffff:422b:a805
66.43.168.6 0:0:0:0:0:ffff:422b:a806
66.43.168.7 0:0:0:0:0:ffff:422b:a807
66.43.168.8 0:0:0:0:0:ffff:422b:a808
66.43.168.9 0:0:0:0:0:ffff:422b:a809
66.43.168.10 0:0:0:0:0:ffff:422b:a80a
66.43.168.11 0:0:0:0:0:ffff:422b:a80b
66.43.168.12 0:0:0:0:0:ffff:422b:a80c
66.43.168.13 0:0:0:0:0:ffff:422b:a80d
66.43.168.14 0:0:0:0:0:ffff:422b:a80e
66.43.168.15 0:0:0:0:0:ffff:422b:a80f
66.43.168.16 0:0:0:0:0:ffff:422b:a810
66.43.168.17 0:0:0:0:0:ffff:422b:a811
66.43.168.18 0:0:0:0:0:ffff:422b:a812
66.43.168.19 0:0:0:0:0:ffff:422b:a813
66.43.168.20 0:0:0:0:0:ffff:422b:a814
66.43.168.21 0:0:0:0:0:ffff:422b:a815
66.43.168.22 0:0:0:0:0:ffff:422b:a816
66.43.168.23 0:0:0:0:0:ffff:422b:a817
66.43.168.24 0:0:0:0:0:ffff:422b:a818
66.43.168.25 0:0:0:0:0:ffff:422b:a819
66.43.168.26 0:0:0:0:0:ffff:422b:a81a
66.43.168.27 0:0:0:0:0:ffff:422b:a81b
66.43.168.28 0:0:0:0:0:ffff:422b:a81c
66.43.168.29 0:0:0:0:0:ffff:422b:a81d
66.43.168.30 0:0:0:0:0:ffff:422b:a81e
66.43.168.31 0:0:0:0:0:ffff:422b:a81f
66.43.168.32 0:0:0:0:0:ffff:422b:a820
66.43.168.33 0:0:0:0:0:ffff:422b:a821
66.43.168.34 0:0:0:0:0:ffff:422b:a822
66.43.168.35 0:0:0:0:0:ffff:422b:a823
66.43.168.36 0:0:0:0:0:ffff:422b:a824
66.43.168.37 0:0:0:0:0:ffff:422b:a825
66.43.168.38 0:0:0:0:0:ffff:422b:a826
66.43.168.39 0:0:0:0:0:ffff:422b:a827
66.43.168.40 0:0:0:0:0:ffff:422b:a828
66.43.168.41 0:0:0:0:0:ffff:422b:a829
66.43.168.42 0:0:0:0:0:ffff:422b:a82a
66.43.168.43 0:0:0:0:0:ffff:422b:a82b
66.43.168.44 0:0:0:0:0:ffff:422b:a82c
66.43.168.45 0:0:0:0:0:ffff:422b:a82d
66.43.168.46 0:0:0:0:0:ffff:422b:a82e
66.43.168.47 0:0:0:0:0:ffff:422b:a82f
66.43.168.48 0:0:0:0:0:ffff:422b:a830
66.43.168.49 0:0:0:0:0:ffff:422b:a831
66.43.168.50 0:0:0:0:0:ffff:422b:a832
66.43.168.51 0:0:0:0:0:ffff:422b:a833
66.43.168.52 0:0:0:0:0:ffff:422b:a834
66.43.168.53 0:0:0:0:0:ffff:422b:a835
66.43.168.54 0:0:0:0:0:ffff:422b:a836
66.43.168.55 0:0:0:0:0:ffff:422b:a837
66.43.168.56 0:0:0:0:0:ffff:422b:a838
66.43.168.57 0:0:0:0:0:ffff:422b:a839
66.43.168.58 0:0:0:0:0:ffff:422b:a83a
66.43.168.59 0:0:0:0:0:ffff:422b:a83b
66.43.168.60 0:0:0:0:0:ffff:422b:a83c


66.43.168.61 0:0:0:0:0:ffff:422b:a83d
66.43.168.62 0:0:0:0:0:ffff:422b:a83e
66.43.168.63 0:0:0:0:0:ffff:422b:a83f
66.43.168.64 0:0:0:0:0:ffff:422b:a840
66.43.168.65 0:0:0:0:0:ffff:422b:a841
66.43.168.66 0:0:0:0:0:ffff:422b:a842
66.43.168.67 0:0:0:0:0:ffff:422b:a843
66.43.168.68 0:0:0:0:0:ffff:422b:a844
66.43.168.69 0:0:0:0:0:ffff:422b:a845
66.43.168.70 0:0:0:0:0:ffff:422b:a846
66.43.168.71 0:0:0:0:0:ffff:422b:a847
66.43.168.72 0:0:0:0:0:ffff:422b:a848
66.43.168.73 0:0:0:0:0:ffff:422b:a849
66.43.168.74 0:0:0:0:0:ffff:422b:a84a
66.43.168.75 0:0:0:0:0:ffff:422b:a84b
66.43.168.76 0:0:0:0:0:ffff:422b:a84c
66.43.168.77 0:0:0:0:0:ffff:422b:a84d
66.43.168.78 0:0:0:0:0:ffff:422b:a84e
66.43.168.79 0:0:0:0:0:ffff:422b:a84f
66.43.168.80 0:0:0:0:0:ffff:422b:a850
66.43.168.81 0:0:0:0:0:ffff:422b:a851
66.43.168.82 0:0:0:0:0:ffff:422b:a852
66.43.168.83 0:0:0:0:0:ffff:422b:a853
66.43.168.84 0:0:0:0:0:ffff:422b:a854
66.43.168.85 0:0:0:0:0:ffff:422b:a855
66.43.168.86 0:0:0:0:0:ffff:422b:a856
66.43.168.87 0:0:0:0:0:ffff:422b:a857
66.43.168.88 0:0:0:0:0:ffff:422b:a858
66.43.168.89 0:0:0:0:0:ffff:422b:a859
66.43.168.90 0:0:0:0:0:ffff:422b:a85a
66.43.168.91 0:0:0:0:0:ffff:422b:a85b
66.43.168.92 0:0:0:0:0:ffff:422b:a85c
66.43.168.93 0:0:0:0:0:ffff:422b:a85d
66.43.168.94 0:0:0:0:0:ffff:422b:a85e
66.43.168.95 0:0:0:0:0:ffff:422b:a85f
66.43.168.96 0:0:0:0:0:ffff:422b:a860
66.43.168.97 0:0:0:0:0:ffff:422b:a861
66.43.168.98 0:0:0:0:0:ffff:422b:a862
66.43.168.99 0:0:0:0:0:ffff:422b:a863
66.43.168.100 0:0:0:0:0:ffff:422b:a864
66.43.168.101 0:0:0:0:0:ffff:422b:a865
66.43.168.102 0:0:0:0:0:ffff:422b:a866
66.43.168.103 0:0:0:0:0:ffff:422b:a867
66.43.168.104 0:0:0:0:0:ffff:422b:a868
66.43.168.105 0:0:0:0:0:ffff:422b:a869
66.43.168.106 0:0:0:0:0:ffff:422b:a86a
66.43.168.107 0:0:0:0:0:ffff:422b:a86b
66.43.168.108 0:0:0:0:0:ffff:422b:a86c
66.43.168.109 0:0:0:0:0:ffff:422b:a86d
66.43.168.110 0:0:0:0:0:ffff:422b:a86e
66.43.168.111 0:0:0:0:0:ffff:422b:a86f
66.43.168.112 0:0:0:0:0:ffff:422b:a870
66.43.168.113 0:0:0:0:0:ffff:422b:a871
66.43.168.114 0:0:0:0:0:ffff:422b:a872
66.43.168.115 0:0:0:0:0:ffff:422b:a873
66.43.168.116 0:0:0:0:0:ffff:422b:a874
66.43.168.117 0:0:0:0:0:ffff:422b:a875
66.43.168.118 0:0:0:0:0:ffff:422b:a876
66.43.168.119 0:0:0:0:0:ffff:422b:a877
66.43.168.120 0:0:0:0:0:ffff:422b:a878


66.43.168.121 0:0:0:0:0:ffff:422b:a879
66.43.168.122 0:0:0:0:0:ffff:422b:a87a
66.43.168.123 0:0:0:0:0:ffff:422b:a87b
66.43.168.124 0:0:0:0:0:ffff:422b:a87c
66.43.168.125 0:0:0:0:0:ffff:422b:a87d
66.43.168.126 0:0:0:0:0:ffff:422b:a87e
66.43.168.127 0:0:0:0:0:ffff:422b:a87f
66.43.168.128 0:0:0:0:0:ffff:422b:a880
66.43.168.129 0:0:0:0:0:ffff:422b:a881
66.43.168.130 0:0:0:0:0:ffff:422b:a882
66.43.168.131 0:0:0:0:0:ffff:422b:a883
66.43.168.132 0:0:0:0:0:ffff:422b:a884
66.43.168.133 0:0:0:0:0:ffff:422b:a885
66.43.168.134 0:0:0:0:0:ffff:422b:a886
66.43.168.135 0:0:0:0:0:ffff:422b:a887
66.43.168.136 0:0:0:0:0:ffff:422b:a888
66.43.168.137 0:0:0:0:0:ffff:422b:a889
66.43.168.138 0:0:0:0:0:ffff:422b:a88a
66.43.168.139 0:0:0:0:0:ffff:422b:a88b
66.43.168.140 0:0:0:0:0:ffff:422b:a88c
66.43.168.141 0:0:0:0:0:ffff:422b:a88d
66.43.168.142 0:0:0:0:0:ffff:422b:a88e
66.43.168.143 0:0:0:0:0:ffff:422b:a88f
66.43.168.144 0:0:0:0:0:ffff:422b:a890
66.43.168.145 0:0:0:0:0:ffff:422b:a891
66.43.168.146 0:0:0:0:0:ffff:422b:a892
66.43.168.147 0:0:0:0:0:ffff:422b:a893
66.43.168.148 0:0:0:0:0:ffff:422b:a894
66.43.168.149 0:0:0:0:0:ffff:422b:a895
66.43.168.150 0:0:0:0:0:ffff:422b:a896
66.43.168.151 0:0:0:0:0:ffff:422b:a897
66.43.168.152 0:0:0:0:0:ffff:422b:a898
66.43.168.153 0:0:0:0:0:ffff:422b:a899
66.43.168.154 0:0:0:0:0:ffff:422b:a89a
66.43.168.155 0:0:0:0:0:ffff:422b:a89b
66.43.168.156 0:0:0:0:0:ffff:422b:a89c
66.43.168.157 0:0:0:0:0:ffff:422b:a89d
66.43.168.158 0:0:0:0:0:ffff:422b:a89e
66.43.168.159 0:0:0:0:0:ffff:422b:a89f
66.43.168.160 0:0:0:0:0:ffff:422b:a8a0
66.43.168.161 0:0:0:0:0:ffff:422b:a8a1
66.43.168.162 0:0:0:0:0:ffff:422b:a8a2
66.43.168.163 0:0:0:0:0:ffff:422b:a8a3
66.43.168.164 0:0:0:0:0:ffff:422b:a8a4
66.43.168.165 0:0:0:0:0:ffff:422b:a8a5
66.43.168.166 0:0:0:0:0:ffff:422b:a8a6
66.43.168.167 0:0:0:0:0:ffff:422b:a8a7
66.43.168.168 0:0:0:0:0:ffff:422b:a8a8
66.43.168.169 0:0:0:0:0:ffff:422b:a8a9
66.43.168.170 0:0:0:0:0:ffff:422b:a8aa
66.43.168.171 0:0:0:0:0:ffff:422b:a8ab
66.43.168.172 0:0:0:0:0:ffff:422b:a8ac
66.43.168.173 0:0:0:0:0:ffff:422b:a8ad
66.43.168.174 0:0:0:0:0:ffff:422b:a8ae
66.43.168.175 0:0:0:0:0:ffff:422b:a8af
66.43.168.176 0:0:0:0:0:ffff:422b:a8b0
66.43.168.177 0:0:0:0:0:ffff:422b:a8b1
66.43.168.178 0:0:0:0:0:ffff:422b:a8b2
66.43.168.179 0:0:0:0:0:ffff:422b:a8b3
66.43.168.180 0:0:0:0:0:ffff:422b:a8b4


66.43.168.181 0:0:0:0:0:ffff:422b:a8b5
66.43.168.182 0:0:0:0:0:ffff:422b:a8b6
66.43.168.183 0:0:0:0:0:ffff:422b:a8b7
66.43.168.184 0:0:0:0:0:ffff:422b:a8b8
66.43.168.185 0:0:0:0:0:ffff:422b:a8b9
66.43.168.186 0:0:0:0:0:ffff:422b:a8ba
66.43.168.187 0:0:0:0:0:ffff:422b:a8bb
66.43.168.188 0:0:0:0:0:ffff:422b:a8bc
66.43.168.189 0:0:0:0:0:ffff:422b:a8bd
66.43.168.190 0:0:0:0:0:ffff:422b:a8be
66.43.168.191 0:0:0:0:0:ffff:422b:a8bf
66.43.168.192 0:0:0:0:0:ffff:422b:a8c0
66.43.168.193 0:0:0:0:0:ffff:422b:a8c1
66.43.168.194 0:0:0:0:0:ffff:422b:a8c2
66.43.168.195 0:0:0:0:0:ffff:422b:a8c3
66.43.168.196 0:0:0:0:0:ffff:422b:a8c4
66.43.168.197 0:0:0:0:0:ffff:422b:a8c5
66.43.168.198 0:0:0:0:0:ffff:422b:a8c6
66.43.168.199 0:0:0:0:0:ffff:422b:a8c7
66.43.168.200 0:0:0:0:0:ffff:422b:a8c8
66.43.168.201 0:0:0:0:0:ffff:422b:a8c9
66.43.168.202 0:0:0:0:0:ffff:422b:a8ca
66.43.168.203 0:0:0:0:0:ffff:422b:a8cb
66.43.168.204 0:0:0:0:0:ffff:422b:a8cc
66.43.168.205 0:0:0:0:0:ffff:422b:a8cd
66.43.168.206 0:0:0:0:0:ffff:422b:a8ce
66.43.168.207 0:0:0:0:0:ffff:422b:a8cf
66.43.168.208 0:0:0:0:0:ffff:422b:a8d0
66.43.168.209 0:0:0:0:0:ffff:422b:a8d1
66.43.168.210 0:0:0:0:0:ffff:422b:a8d2
66.43.168.211 0:0:0:0:0:ffff:422b:a8d3
66.43.168.212 0:0:0:0:0:ffff:422b:a8d4
66.43.168.213 0:0:0:0:0:ffff:422b:a8d5
66.43.168.214 0:0:0:0:0:ffff:422b:a8d6
66.43.168.215 0:0:0:0:0:ffff:422b:a8d7
66.43.168.216 0:0:0:0:0:ffff:422b:a8d8
66.43.168.217 0:0:0:0:0:ffff:422b:a8d9
66.43.168.218 0:0:0:0:0:ffff:422b:a8da
66.43.168.219 0:0:0:0:0:ffff:422b:a8db
66.43.168.220 0:0:0:0:0:ffff:422b:a8dc
66.43.168.221 0:0:0:0:0:ffff:422b:a8dd
66.43.168.222 0:0:0:0:0:ffff:422b:a8de
66.43.168.223 0:0:0:0:0:ffff:422b:a8df
66.43.168.224 0:0:0:0:0:ffff:422b:a8e0
66.43.168.225 0:0:0:0:0:ffff:422b:a8e1
66.43.168.226 0:0:0:0:0:ffff:422b:a8e2
66.43.168.227 0:0:0:0:0:ffff:422b:a8e3
66.43.168.228 0:0:0:0:0:ffff:422b:a8e4
66.43.168.229 0:0:0:0:0:ffff:422b:a8e5
66.43.168.230 0:0:0:0:0:ffff:422b:a8e6
66.43.168.231 0:0:0:0:0:ffff:422b:a8e7
66.43.168.232 0:0:0:0:0:ffff:422b:a8e8
66.43.168.233 0:0:0:0:0:ffff:422b:a8e9
66.43.168.234 0:0:0:0:0:ffff:422b:a8ea
66.43.168.235 0:0:0:0:0:ffff:422b:a8eb
66.43.168.236 0:0:0:0:0:ffff:422b:a8ec
66.43.168.237 0:0:0:0:0:ffff:422b:a8ed
66.43.168.238 0:0:0:0:0:ffff:422b:a8ee
66.43.168.239 0:0:0:0:0:ffff:422b:a8ef
66.43.168.240 0:0:0:0:0:ffff:422b:a8f0
66.43.168.241 0:0:0:0:0:ffff:422b:a8f1
66.43.168.242 0:0:0:0:0:ffff:422b:a8f2
66.43.168.243 0:0:0:0:0:ffff:422b:a8f3
66.43.168.244 0:0:0:0:0:ffff:422b:a8f4
66.43.168.245 0:0:0:0:0:ffff:422b:a8f5
66.43.168.246 0:0:0:0:0:ffff:422b:a8f6
66.43.168.247 0:0:0:0:0:ffff:422b:a8f7
66.43.168.248 0:0:0:0:0:ffff:422b:a8f8
66.43.168.249 0:0:0:0:0:ffff:422b:a8f9
66.43.168.250 0:0:0:0:0:ffff:422b:a8fa
66.43.168.251 0:0:0:0:0:ffff:422b:a8fb
66.43.168.252 0:0:0:0:0:ffff:422b:a8fc
66.43.168.253 0:0:0:0:0:ffff:422b:a8fd
66.43.168.254 0:0:0:0:0:ffff:422b:a8fe
66.43.168.255 0:0:0:0:0:ffff:422b:a8ff


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.