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
20.71.72.1 0:0:0:0:0:ffff:1447:4801
20.71.72.2 0:0:0:0:0:ffff:1447:4802
20.71.72.3 0:0:0:0:0:ffff:1447:4803
20.71.72.4 0:0:0:0:0:ffff:1447:4804
20.71.72.5 0:0:0:0:0:ffff:1447:4805
20.71.72.6 0:0:0:0:0:ffff:1447:4806
20.71.72.7 0:0:0:0:0:ffff:1447:4807
20.71.72.8 0:0:0:0:0:ffff:1447:4808
20.71.72.9 0:0:0:0:0:ffff:1447:4809
20.71.72.10 0:0:0:0:0:ffff:1447:480a
20.71.72.11 0:0:0:0:0:ffff:1447:480b
20.71.72.12 0:0:0:0:0:ffff:1447:480c
20.71.72.13 0:0:0:0:0:ffff:1447:480d
20.71.72.14 0:0:0:0:0:ffff:1447:480e
20.71.72.15 0:0:0:0:0:ffff:1447:480f
20.71.72.16 0:0:0:0:0:ffff:1447:4810
20.71.72.17 0:0:0:0:0:ffff:1447:4811
20.71.72.18 0:0:0:0:0:ffff:1447:4812
20.71.72.19 0:0:0:0:0:ffff:1447:4813
20.71.72.20 0:0:0:0:0:ffff:1447:4814
20.71.72.21 0:0:0:0:0:ffff:1447:4815
20.71.72.22 0:0:0:0:0:ffff:1447:4816
20.71.72.23 0:0:0:0:0:ffff:1447:4817
20.71.72.24 0:0:0:0:0:ffff:1447:4818
20.71.72.25 0:0:0:0:0:ffff:1447:4819
20.71.72.26 0:0:0:0:0:ffff:1447:481a
20.71.72.27 0:0:0:0:0:ffff:1447:481b
20.71.72.28 0:0:0:0:0:ffff:1447:481c
20.71.72.29 0:0:0:0:0:ffff:1447:481d
20.71.72.30 0:0:0:0:0:ffff:1447:481e
20.71.72.31 0:0:0:0:0:ffff:1447:481f
20.71.72.32 0:0:0:0:0:ffff:1447:4820
20.71.72.33 0:0:0:0:0:ffff:1447:4821
20.71.72.34 0:0:0:0:0:ffff:1447:4822
20.71.72.35 0:0:0:0:0:ffff:1447:4823
20.71.72.36 0:0:0:0:0:ffff:1447:4824
20.71.72.37 0:0:0:0:0:ffff:1447:4825
20.71.72.38 0:0:0:0:0:ffff:1447:4826
20.71.72.39 0:0:0:0:0:ffff:1447:4827
20.71.72.40 0:0:0:0:0:ffff:1447:4828
20.71.72.41 0:0:0:0:0:ffff:1447:4829
20.71.72.42 0:0:0:0:0:ffff:1447:482a
20.71.72.43 0:0:0:0:0:ffff:1447:482b
20.71.72.44 0:0:0:0:0:ffff:1447:482c
20.71.72.45 0:0:0:0:0:ffff:1447:482d
20.71.72.46 0:0:0:0:0:ffff:1447:482e
20.71.72.47 0:0:0:0:0:ffff:1447:482f
20.71.72.48 0:0:0:0:0:ffff:1447:4830
20.71.72.49 0:0:0:0:0:ffff:1447:4831
20.71.72.50 0:0:0:0:0:ffff:1447:4832
20.71.72.51 0:0:0:0:0:ffff:1447:4833
20.71.72.52 0:0:0:0:0:ffff:1447:4834
20.71.72.53 0:0:0:0:0:ffff:1447:4835
20.71.72.54 0:0:0:0:0:ffff:1447:4836
20.71.72.55 0:0:0:0:0:ffff:1447:4837
20.71.72.56 0:0:0:0:0:ffff:1447:4838
20.71.72.57 0:0:0:0:0:ffff:1447:4839
20.71.72.58 0:0:0:0:0:ffff:1447:483a
20.71.72.59 0:0:0:0:0:ffff:1447:483b
20.71.72.60 0:0:0:0:0:ffff:1447:483c


20.71.72.61 0:0:0:0:0:ffff:1447:483d
20.71.72.62 0:0:0:0:0:ffff:1447:483e
20.71.72.63 0:0:0:0:0:ffff:1447:483f
20.71.72.64 0:0:0:0:0:ffff:1447:4840
20.71.72.65 0:0:0:0:0:ffff:1447:4841
20.71.72.66 0:0:0:0:0:ffff:1447:4842
20.71.72.67 0:0:0:0:0:ffff:1447:4843
20.71.72.68 0:0:0:0:0:ffff:1447:4844
20.71.72.69 0:0:0:0:0:ffff:1447:4845
20.71.72.70 0:0:0:0:0:ffff:1447:4846
20.71.72.71 0:0:0:0:0:ffff:1447:4847
20.71.72.72 0:0:0:0:0:ffff:1447:4848
20.71.72.73 0:0:0:0:0:ffff:1447:4849
20.71.72.74 0:0:0:0:0:ffff:1447:484a
20.71.72.75 0:0:0:0:0:ffff:1447:484b
20.71.72.76 0:0:0:0:0:ffff:1447:484c
20.71.72.77 0:0:0:0:0:ffff:1447:484d
20.71.72.78 0:0:0:0:0:ffff:1447:484e
20.71.72.79 0:0:0:0:0:ffff:1447:484f
20.71.72.80 0:0:0:0:0:ffff:1447:4850
20.71.72.81 0:0:0:0:0:ffff:1447:4851
20.71.72.82 0:0:0:0:0:ffff:1447:4852
20.71.72.83 0:0:0:0:0:ffff:1447:4853
20.71.72.84 0:0:0:0:0:ffff:1447:4854
20.71.72.85 0:0:0:0:0:ffff:1447:4855
20.71.72.86 0:0:0:0:0:ffff:1447:4856
20.71.72.87 0:0:0:0:0:ffff:1447:4857
20.71.72.88 0:0:0:0:0:ffff:1447:4858
20.71.72.89 0:0:0:0:0:ffff:1447:4859
20.71.72.90 0:0:0:0:0:ffff:1447:485a
20.71.72.91 0:0:0:0:0:ffff:1447:485b
20.71.72.92 0:0:0:0:0:ffff:1447:485c
20.71.72.93 0:0:0:0:0:ffff:1447:485d
20.71.72.94 0:0:0:0:0:ffff:1447:485e
20.71.72.95 0:0:0:0:0:ffff:1447:485f
20.71.72.96 0:0:0:0:0:ffff:1447:4860
20.71.72.97 0:0:0:0:0:ffff:1447:4861
20.71.72.98 0:0:0:0:0:ffff:1447:4862
20.71.72.99 0:0:0:0:0:ffff:1447:4863
20.71.72.100 0:0:0:0:0:ffff:1447:4864
20.71.72.101 0:0:0:0:0:ffff:1447:4865
20.71.72.102 0:0:0:0:0:ffff:1447:4866
20.71.72.103 0:0:0:0:0:ffff:1447:4867
20.71.72.104 0:0:0:0:0:ffff:1447:4868
20.71.72.105 0:0:0:0:0:ffff:1447:4869
20.71.72.106 0:0:0:0:0:ffff:1447:486a
20.71.72.107 0:0:0:0:0:ffff:1447:486b
20.71.72.108 0:0:0:0:0:ffff:1447:486c
20.71.72.109 0:0:0:0:0:ffff:1447:486d
20.71.72.110 0:0:0:0:0:ffff:1447:486e
20.71.72.111 0:0:0:0:0:ffff:1447:486f
20.71.72.112 0:0:0:0:0:ffff:1447:4870
20.71.72.113 0:0:0:0:0:ffff:1447:4871
20.71.72.114 0:0:0:0:0:ffff:1447:4872
20.71.72.115 0:0:0:0:0:ffff:1447:4873
20.71.72.116 0:0:0:0:0:ffff:1447:4874
20.71.72.117 0:0:0:0:0:ffff:1447:4875
20.71.72.118 0:0:0:0:0:ffff:1447:4876
20.71.72.119 0:0:0:0:0:ffff:1447:4877
20.71.72.120 0:0:0:0:0:ffff:1447:4878


20.71.72.121 0:0:0:0:0:ffff:1447:4879
20.71.72.122 0:0:0:0:0:ffff:1447:487a
20.71.72.123 0:0:0:0:0:ffff:1447:487b
20.71.72.124 0:0:0:0:0:ffff:1447:487c
20.71.72.125 0:0:0:0:0:ffff:1447:487d
20.71.72.126 0:0:0:0:0:ffff:1447:487e
20.71.72.127 0:0:0:0:0:ffff:1447:487f
20.71.72.128 0:0:0:0:0:ffff:1447:4880
20.71.72.129 0:0:0:0:0:ffff:1447:4881
20.71.72.130 0:0:0:0:0:ffff:1447:4882
20.71.72.131 0:0:0:0:0:ffff:1447:4883
20.71.72.132 0:0:0:0:0:ffff:1447:4884
20.71.72.133 0:0:0:0:0:ffff:1447:4885
20.71.72.134 0:0:0:0:0:ffff:1447:4886
20.71.72.135 0:0:0:0:0:ffff:1447:4887
20.71.72.136 0:0:0:0:0:ffff:1447:4888
20.71.72.137 0:0:0:0:0:ffff:1447:4889
20.71.72.138 0:0:0:0:0:ffff:1447:488a
20.71.72.139 0:0:0:0:0:ffff:1447:488b
20.71.72.140 0:0:0:0:0:ffff:1447:488c
20.71.72.141 0:0:0:0:0:ffff:1447:488d
20.71.72.142 0:0:0:0:0:ffff:1447:488e
20.71.72.143 0:0:0:0:0:ffff:1447:488f
20.71.72.144 0:0:0:0:0:ffff:1447:4890
20.71.72.145 0:0:0:0:0:ffff:1447:4891
20.71.72.146 0:0:0:0:0:ffff:1447:4892
20.71.72.147 0:0:0:0:0:ffff:1447:4893
20.71.72.148 0:0:0:0:0:ffff:1447:4894
20.71.72.149 0:0:0:0:0:ffff:1447:4895
20.71.72.150 0:0:0:0:0:ffff:1447:4896
20.71.72.151 0:0:0:0:0:ffff:1447:4897
20.71.72.152 0:0:0:0:0:ffff:1447:4898
20.71.72.153 0:0:0:0:0:ffff:1447:4899
20.71.72.154 0:0:0:0:0:ffff:1447:489a
20.71.72.155 0:0:0:0:0:ffff:1447:489b
20.71.72.156 0:0:0:0:0:ffff:1447:489c
20.71.72.157 0:0:0:0:0:ffff:1447:489d
20.71.72.158 0:0:0:0:0:ffff:1447:489e
20.71.72.159 0:0:0:0:0:ffff:1447:489f
20.71.72.160 0:0:0:0:0:ffff:1447:48a0
20.71.72.161 0:0:0:0:0:ffff:1447:48a1
20.71.72.162 0:0:0:0:0:ffff:1447:48a2
20.71.72.163 0:0:0:0:0:ffff:1447:48a3
20.71.72.164 0:0:0:0:0:ffff:1447:48a4
20.71.72.165 0:0:0:0:0:ffff:1447:48a5
20.71.72.166 0:0:0:0:0:ffff:1447:48a6
20.71.72.167 0:0:0:0:0:ffff:1447:48a7
20.71.72.168 0:0:0:0:0:ffff:1447:48a8
20.71.72.169 0:0:0:0:0:ffff:1447:48a9
20.71.72.170 0:0:0:0:0:ffff:1447:48aa
20.71.72.171 0:0:0:0:0:ffff:1447:48ab
20.71.72.172 0:0:0:0:0:ffff:1447:48ac
20.71.72.173 0:0:0:0:0:ffff:1447:48ad
20.71.72.174 0:0:0:0:0:ffff:1447:48ae
20.71.72.175 0:0:0:0:0:ffff:1447:48af
20.71.72.176 0:0:0:0:0:ffff:1447:48b0
20.71.72.177 0:0:0:0:0:ffff:1447:48b1
20.71.72.178 0:0:0:0:0:ffff:1447:48b2
20.71.72.179 0:0:0:0:0:ffff:1447:48b3
20.71.72.180 0:0:0:0:0:ffff:1447:48b4


20.71.72.181 0:0:0:0:0:ffff:1447:48b5
20.71.72.182 0:0:0:0:0:ffff:1447:48b6
20.71.72.183 0:0:0:0:0:ffff:1447:48b7
20.71.72.184 0:0:0:0:0:ffff:1447:48b8
20.71.72.185 0:0:0:0:0:ffff:1447:48b9
20.71.72.186 0:0:0:0:0:ffff:1447:48ba
20.71.72.187 0:0:0:0:0:ffff:1447:48bb
20.71.72.188 0:0:0:0:0:ffff:1447:48bc
20.71.72.189 0:0:0:0:0:ffff:1447:48bd
20.71.72.190 0:0:0:0:0:ffff:1447:48be
20.71.72.191 0:0:0:0:0:ffff:1447:48bf
20.71.72.192 0:0:0:0:0:ffff:1447:48c0
20.71.72.193 0:0:0:0:0:ffff:1447:48c1
20.71.72.194 0:0:0:0:0:ffff:1447:48c2
20.71.72.195 0:0:0:0:0:ffff:1447:48c3
20.71.72.196 0:0:0:0:0:ffff:1447:48c4
20.71.72.197 0:0:0:0:0:ffff:1447:48c5
20.71.72.198 0:0:0:0:0:ffff:1447:48c6
20.71.72.199 0:0:0:0:0:ffff:1447:48c7
20.71.72.200 0:0:0:0:0:ffff:1447:48c8
20.71.72.201 0:0:0:0:0:ffff:1447:48c9
20.71.72.202 0:0:0:0:0:ffff:1447:48ca
20.71.72.203 0:0:0:0:0:ffff:1447:48cb
20.71.72.204 0:0:0:0:0:ffff:1447:48cc
20.71.72.205 0:0:0:0:0:ffff:1447:48cd
20.71.72.206 0:0:0:0:0:ffff:1447:48ce
20.71.72.207 0:0:0:0:0:ffff:1447:48cf
20.71.72.208 0:0:0:0:0:ffff:1447:48d0
20.71.72.209 0:0:0:0:0:ffff:1447:48d1
20.71.72.210 0:0:0:0:0:ffff:1447:48d2
20.71.72.211 0:0:0:0:0:ffff:1447:48d3
20.71.72.212 0:0:0:0:0:ffff:1447:48d4
20.71.72.213 0:0:0:0:0:ffff:1447:48d5
20.71.72.214 0:0:0:0:0:ffff:1447:48d6
20.71.72.215 0:0:0:0:0:ffff:1447:48d7
20.71.72.216 0:0:0:0:0:ffff:1447:48d8
20.71.72.217 0:0:0:0:0:ffff:1447:48d9
20.71.72.218 0:0:0:0:0:ffff:1447:48da
20.71.72.219 0:0:0:0:0:ffff:1447:48db
20.71.72.220 0:0:0:0:0:ffff:1447:48dc
20.71.72.221 0:0:0:0:0:ffff:1447:48dd
20.71.72.222 0:0:0:0:0:ffff:1447:48de
20.71.72.223 0:0:0:0:0:ffff:1447:48df
20.71.72.224 0:0:0:0:0:ffff:1447:48e0
20.71.72.225 0:0:0:0:0:ffff:1447:48e1
20.71.72.226 0:0:0:0:0:ffff:1447:48e2
20.71.72.227 0:0:0:0:0:ffff:1447:48e3
20.71.72.228 0:0:0:0:0:ffff:1447:48e4
20.71.72.229 0:0:0:0:0:ffff:1447:48e5
20.71.72.230 0:0:0:0:0:ffff:1447:48e6
20.71.72.231 0:0:0:0:0:ffff:1447:48e7
20.71.72.232 0:0:0:0:0:ffff:1447:48e8
20.71.72.233 0:0:0:0:0:ffff:1447:48e9
20.71.72.234 0:0:0:0:0:ffff:1447:48ea
20.71.72.235 0:0:0:0:0:ffff:1447:48eb
20.71.72.236 0:0:0:0:0:ffff:1447:48ec
20.71.72.237 0:0:0:0:0:ffff:1447:48ed
20.71.72.238 0:0:0:0:0:ffff:1447:48ee
20.71.72.239 0:0:0:0:0:ffff:1447:48ef
20.71.72.240 0:0:0:0:0:ffff:1447:48f0
20.71.72.241 0:0:0:0:0:ffff:1447:48f1
20.71.72.242 0:0:0:0:0:ffff:1447:48f2
20.71.72.243 0:0:0:0:0:ffff:1447:48f3
20.71.72.244 0:0:0:0:0:ffff:1447:48f4
20.71.72.245 0:0:0:0:0:ffff:1447:48f5
20.71.72.246 0:0:0:0:0:ffff:1447:48f6
20.71.72.247 0:0:0:0:0:ffff:1447:48f7
20.71.72.248 0:0:0:0:0:ffff:1447:48f8
20.71.72.249 0:0:0:0:0:ffff:1447:48f9
20.71.72.250 0:0:0:0:0:ffff:1447:48fa
20.71.72.251 0:0:0:0:0:ffff:1447:48fb
20.71.72.252 0:0:0:0:0:ffff:1447:48fc
20.71.72.253 0:0:0:0:0:ffff:1447:48fd
20.71.72.254 0:0:0:0:0:ffff:1447:48fe
20.71.72.255 0:0:0:0:0:ffff:1447:48ff


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.