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
181.215.72.1 0:0:0:0:0:ffff:b5d7:4801
181.215.72.2 0:0:0:0:0:ffff:b5d7:4802
181.215.72.3 0:0:0:0:0:ffff:b5d7:4803
181.215.72.4 0:0:0:0:0:ffff:b5d7:4804
181.215.72.5 0:0:0:0:0:ffff:b5d7:4805
181.215.72.6 0:0:0:0:0:ffff:b5d7:4806
181.215.72.7 0:0:0:0:0:ffff:b5d7:4807
181.215.72.8 0:0:0:0:0:ffff:b5d7:4808
181.215.72.9 0:0:0:0:0:ffff:b5d7:4809
181.215.72.10 0:0:0:0:0:ffff:b5d7:480a
181.215.72.11 0:0:0:0:0:ffff:b5d7:480b
181.215.72.12 0:0:0:0:0:ffff:b5d7:480c
181.215.72.13 0:0:0:0:0:ffff:b5d7:480d
181.215.72.14 0:0:0:0:0:ffff:b5d7:480e
181.215.72.15 0:0:0:0:0:ffff:b5d7:480f
181.215.72.16 0:0:0:0:0:ffff:b5d7:4810
181.215.72.17 0:0:0:0:0:ffff:b5d7:4811
181.215.72.18 0:0:0:0:0:ffff:b5d7:4812
181.215.72.19 0:0:0:0:0:ffff:b5d7:4813
181.215.72.20 0:0:0:0:0:ffff:b5d7:4814
181.215.72.21 0:0:0:0:0:ffff:b5d7:4815
181.215.72.22 0:0:0:0:0:ffff:b5d7:4816
181.215.72.23 0:0:0:0:0:ffff:b5d7:4817
181.215.72.24 0:0:0:0:0:ffff:b5d7:4818
181.215.72.25 0:0:0:0:0:ffff:b5d7:4819
181.215.72.26 0:0:0:0:0:ffff:b5d7:481a
181.215.72.27 0:0:0:0:0:ffff:b5d7:481b
181.215.72.28 0:0:0:0:0:ffff:b5d7:481c
181.215.72.29 0:0:0:0:0:ffff:b5d7:481d
181.215.72.30 0:0:0:0:0:ffff:b5d7:481e
181.215.72.31 0:0:0:0:0:ffff:b5d7:481f
181.215.72.32 0:0:0:0:0:ffff:b5d7:4820
181.215.72.33 0:0:0:0:0:ffff:b5d7:4821
181.215.72.34 0:0:0:0:0:ffff:b5d7:4822
181.215.72.35 0:0:0:0:0:ffff:b5d7:4823
181.215.72.36 0:0:0:0:0:ffff:b5d7:4824
181.215.72.37 0:0:0:0:0:ffff:b5d7:4825
181.215.72.38 0:0:0:0:0:ffff:b5d7:4826
181.215.72.39 0:0:0:0:0:ffff:b5d7:4827
181.215.72.40 0:0:0:0:0:ffff:b5d7:4828
181.215.72.41 0:0:0:0:0:ffff:b5d7:4829
181.215.72.42 0:0:0:0:0:ffff:b5d7:482a
181.215.72.43 0:0:0:0:0:ffff:b5d7:482b
181.215.72.44 0:0:0:0:0:ffff:b5d7:482c
181.215.72.45 0:0:0:0:0:ffff:b5d7:482d
181.215.72.46 0:0:0:0:0:ffff:b5d7:482e
181.215.72.47 0:0:0:0:0:ffff:b5d7:482f
181.215.72.48 0:0:0:0:0:ffff:b5d7:4830
181.215.72.49 0:0:0:0:0:ffff:b5d7:4831
181.215.72.50 0:0:0:0:0:ffff:b5d7:4832
181.215.72.51 0:0:0:0:0:ffff:b5d7:4833
181.215.72.52 0:0:0:0:0:ffff:b5d7:4834
181.215.72.53 0:0:0:0:0:ffff:b5d7:4835
181.215.72.54 0:0:0:0:0:ffff:b5d7:4836
181.215.72.55 0:0:0:0:0:ffff:b5d7:4837
181.215.72.56 0:0:0:0:0:ffff:b5d7:4838
181.215.72.57 0:0:0:0:0:ffff:b5d7:4839
181.215.72.58 0:0:0:0:0:ffff:b5d7:483a
181.215.72.59 0:0:0:0:0:ffff:b5d7:483b
181.215.72.60 0:0:0:0:0:ffff:b5d7:483c


181.215.72.61 0:0:0:0:0:ffff:b5d7:483d
181.215.72.62 0:0:0:0:0:ffff:b5d7:483e
181.215.72.63 0:0:0:0:0:ffff:b5d7:483f
181.215.72.64 0:0:0:0:0:ffff:b5d7:4840
181.215.72.65 0:0:0:0:0:ffff:b5d7:4841
181.215.72.66 0:0:0:0:0:ffff:b5d7:4842
181.215.72.67 0:0:0:0:0:ffff:b5d7:4843
181.215.72.68 0:0:0:0:0:ffff:b5d7:4844
181.215.72.69 0:0:0:0:0:ffff:b5d7:4845
181.215.72.70 0:0:0:0:0:ffff:b5d7:4846
181.215.72.71 0:0:0:0:0:ffff:b5d7:4847
181.215.72.72 0:0:0:0:0:ffff:b5d7:4848
181.215.72.73 0:0:0:0:0:ffff:b5d7:4849
181.215.72.74 0:0:0:0:0:ffff:b5d7:484a
181.215.72.75 0:0:0:0:0:ffff:b5d7:484b
181.215.72.76 0:0:0:0:0:ffff:b5d7:484c
181.215.72.77 0:0:0:0:0:ffff:b5d7:484d
181.215.72.78 0:0:0:0:0:ffff:b5d7:484e
181.215.72.79 0:0:0:0:0:ffff:b5d7:484f
181.215.72.80 0:0:0:0:0:ffff:b5d7:4850
181.215.72.81 0:0:0:0:0:ffff:b5d7:4851
181.215.72.82 0:0:0:0:0:ffff:b5d7:4852
181.215.72.83 0:0:0:0:0:ffff:b5d7:4853
181.215.72.84 0:0:0:0:0:ffff:b5d7:4854
181.215.72.85 0:0:0:0:0:ffff:b5d7:4855
181.215.72.86 0:0:0:0:0:ffff:b5d7:4856
181.215.72.87 0:0:0:0:0:ffff:b5d7:4857
181.215.72.88 0:0:0:0:0:ffff:b5d7:4858
181.215.72.89 0:0:0:0:0:ffff:b5d7:4859
181.215.72.90 0:0:0:0:0:ffff:b5d7:485a
181.215.72.91 0:0:0:0:0:ffff:b5d7:485b
181.215.72.92 0:0:0:0:0:ffff:b5d7:485c
181.215.72.93 0:0:0:0:0:ffff:b5d7:485d
181.215.72.94 0:0:0:0:0:ffff:b5d7:485e
181.215.72.95 0:0:0:0:0:ffff:b5d7:485f
181.215.72.96 0:0:0:0:0:ffff:b5d7:4860
181.215.72.97 0:0:0:0:0:ffff:b5d7:4861
181.215.72.98 0:0:0:0:0:ffff:b5d7:4862
181.215.72.99 0:0:0:0:0:ffff:b5d7:4863
181.215.72.100 0:0:0:0:0:ffff:b5d7:4864
181.215.72.101 0:0:0:0:0:ffff:b5d7:4865
181.215.72.102 0:0:0:0:0:ffff:b5d7:4866
181.215.72.103 0:0:0:0:0:ffff:b5d7:4867
181.215.72.104 0:0:0:0:0:ffff:b5d7:4868
181.215.72.105 0:0:0:0:0:ffff:b5d7:4869
181.215.72.106 0:0:0:0:0:ffff:b5d7:486a
181.215.72.107 0:0:0:0:0:ffff:b5d7:486b
181.215.72.108 0:0:0:0:0:ffff:b5d7:486c
181.215.72.109 0:0:0:0:0:ffff:b5d7:486d
181.215.72.110 0:0:0:0:0:ffff:b5d7:486e
181.215.72.111 0:0:0:0:0:ffff:b5d7:486f
181.215.72.112 0:0:0:0:0:ffff:b5d7:4870
181.215.72.113 0:0:0:0:0:ffff:b5d7:4871
181.215.72.114 0:0:0:0:0:ffff:b5d7:4872
181.215.72.115 0:0:0:0:0:ffff:b5d7:4873
181.215.72.116 0:0:0:0:0:ffff:b5d7:4874
181.215.72.117 0:0:0:0:0:ffff:b5d7:4875
181.215.72.118 0:0:0:0:0:ffff:b5d7:4876
181.215.72.119 0:0:0:0:0:ffff:b5d7:4877
181.215.72.120 0:0:0:0:0:ffff:b5d7:4878


181.215.72.121 0:0:0:0:0:ffff:b5d7:4879
181.215.72.122 0:0:0:0:0:ffff:b5d7:487a
181.215.72.123 0:0:0:0:0:ffff:b5d7:487b
181.215.72.124 0:0:0:0:0:ffff:b5d7:487c
181.215.72.125 0:0:0:0:0:ffff:b5d7:487d
181.215.72.126 0:0:0:0:0:ffff:b5d7:487e
181.215.72.127 0:0:0:0:0:ffff:b5d7:487f
181.215.72.128 0:0:0:0:0:ffff:b5d7:4880
181.215.72.129 0:0:0:0:0:ffff:b5d7:4881
181.215.72.130 0:0:0:0:0:ffff:b5d7:4882
181.215.72.131 0:0:0:0:0:ffff:b5d7:4883
181.215.72.132 0:0:0:0:0:ffff:b5d7:4884
181.215.72.133 0:0:0:0:0:ffff:b5d7:4885
181.215.72.134 0:0:0:0:0:ffff:b5d7:4886
181.215.72.135 0:0:0:0:0:ffff:b5d7:4887
181.215.72.136 0:0:0:0:0:ffff:b5d7:4888
181.215.72.137 0:0:0:0:0:ffff:b5d7:4889
181.215.72.138 0:0:0:0:0:ffff:b5d7:488a
181.215.72.139 0:0:0:0:0:ffff:b5d7:488b
181.215.72.140 0:0:0:0:0:ffff:b5d7:488c
181.215.72.141 0:0:0:0:0:ffff:b5d7:488d
181.215.72.142 0:0:0:0:0:ffff:b5d7:488e
181.215.72.143 0:0:0:0:0:ffff:b5d7:488f
181.215.72.144 0:0:0:0:0:ffff:b5d7:4890
181.215.72.145 0:0:0:0:0:ffff:b5d7:4891
181.215.72.146 0:0:0:0:0:ffff:b5d7:4892
181.215.72.147 0:0:0:0:0:ffff:b5d7:4893
181.215.72.148 0:0:0:0:0:ffff:b5d7:4894
181.215.72.149 0:0:0:0:0:ffff:b5d7:4895
181.215.72.150 0:0:0:0:0:ffff:b5d7:4896
181.215.72.151 0:0:0:0:0:ffff:b5d7:4897
181.215.72.152 0:0:0:0:0:ffff:b5d7:4898
181.215.72.153 0:0:0:0:0:ffff:b5d7:4899
181.215.72.154 0:0:0:0:0:ffff:b5d7:489a
181.215.72.155 0:0:0:0:0:ffff:b5d7:489b
181.215.72.156 0:0:0:0:0:ffff:b5d7:489c
181.215.72.157 0:0:0:0:0:ffff:b5d7:489d
181.215.72.158 0:0:0:0:0:ffff:b5d7:489e
181.215.72.159 0:0:0:0:0:ffff:b5d7:489f
181.215.72.160 0:0:0:0:0:ffff:b5d7:48a0
181.215.72.161 0:0:0:0:0:ffff:b5d7:48a1
181.215.72.162 0:0:0:0:0:ffff:b5d7:48a2
181.215.72.163 0:0:0:0:0:ffff:b5d7:48a3
181.215.72.164 0:0:0:0:0:ffff:b5d7:48a4
181.215.72.165 0:0:0:0:0:ffff:b5d7:48a5
181.215.72.166 0:0:0:0:0:ffff:b5d7:48a6
181.215.72.167 0:0:0:0:0:ffff:b5d7:48a7
181.215.72.168 0:0:0:0:0:ffff:b5d7:48a8
181.215.72.169 0:0:0:0:0:ffff:b5d7:48a9
181.215.72.170 0:0:0:0:0:ffff:b5d7:48aa
181.215.72.171 0:0:0:0:0:ffff:b5d7:48ab
181.215.72.172 0:0:0:0:0:ffff:b5d7:48ac
181.215.72.173 0:0:0:0:0:ffff:b5d7:48ad
181.215.72.174 0:0:0:0:0:ffff:b5d7:48ae
181.215.72.175 0:0:0:0:0:ffff:b5d7:48af
181.215.72.176 0:0:0:0:0:ffff:b5d7:48b0
181.215.72.177 0:0:0:0:0:ffff:b5d7:48b1
181.215.72.178 0:0:0:0:0:ffff:b5d7:48b2
181.215.72.179 0:0:0:0:0:ffff:b5d7:48b3
181.215.72.180 0:0:0:0:0:ffff:b5d7:48b4


181.215.72.181 0:0:0:0:0:ffff:b5d7:48b5
181.215.72.182 0:0:0:0:0:ffff:b5d7:48b6
181.215.72.183 0:0:0:0:0:ffff:b5d7:48b7
181.215.72.184 0:0:0:0:0:ffff:b5d7:48b8
181.215.72.185 0:0:0:0:0:ffff:b5d7:48b9
181.215.72.186 0:0:0:0:0:ffff:b5d7:48ba
181.215.72.187 0:0:0:0:0:ffff:b5d7:48bb
181.215.72.188 0:0:0:0:0:ffff:b5d7:48bc
181.215.72.189 0:0:0:0:0:ffff:b5d7:48bd
181.215.72.190 0:0:0:0:0:ffff:b5d7:48be
181.215.72.191 0:0:0:0:0:ffff:b5d7:48bf
181.215.72.192 0:0:0:0:0:ffff:b5d7:48c0
181.215.72.193 0:0:0:0:0:ffff:b5d7:48c1
181.215.72.194 0:0:0:0:0:ffff:b5d7:48c2
181.215.72.195 0:0:0:0:0:ffff:b5d7:48c3
181.215.72.196 0:0:0:0:0:ffff:b5d7:48c4
181.215.72.197 0:0:0:0:0:ffff:b5d7:48c5
181.215.72.198 0:0:0:0:0:ffff:b5d7:48c6
181.215.72.199 0:0:0:0:0:ffff:b5d7:48c7
181.215.72.200 0:0:0:0:0:ffff:b5d7:48c8
181.215.72.201 0:0:0:0:0:ffff:b5d7:48c9
181.215.72.202 0:0:0:0:0:ffff:b5d7:48ca
181.215.72.203 0:0:0:0:0:ffff:b5d7:48cb
181.215.72.204 0:0:0:0:0:ffff:b5d7:48cc
181.215.72.205 0:0:0:0:0:ffff:b5d7:48cd
181.215.72.206 0:0:0:0:0:ffff:b5d7:48ce
181.215.72.207 0:0:0:0:0:ffff:b5d7:48cf
181.215.72.208 0:0:0:0:0:ffff:b5d7:48d0
181.215.72.209 0:0:0:0:0:ffff:b5d7:48d1
181.215.72.210 0:0:0:0:0:ffff:b5d7:48d2
181.215.72.211 0:0:0:0:0:ffff:b5d7:48d3
181.215.72.212 0:0:0:0:0:ffff:b5d7:48d4
181.215.72.213 0:0:0:0:0:ffff:b5d7:48d5
181.215.72.214 0:0:0:0:0:ffff:b5d7:48d6
181.215.72.215 0:0:0:0:0:ffff:b5d7:48d7
181.215.72.216 0:0:0:0:0:ffff:b5d7:48d8
181.215.72.217 0:0:0:0:0:ffff:b5d7:48d9
181.215.72.218 0:0:0:0:0:ffff:b5d7:48da
181.215.72.219 0:0:0:0:0:ffff:b5d7:48db
181.215.72.220 0:0:0:0:0:ffff:b5d7:48dc
181.215.72.221 0:0:0:0:0:ffff:b5d7:48dd
181.215.72.222 0:0:0:0:0:ffff:b5d7:48de
181.215.72.223 0:0:0:0:0:ffff:b5d7:48df
181.215.72.224 0:0:0:0:0:ffff:b5d7:48e0
181.215.72.225 0:0:0:0:0:ffff:b5d7:48e1
181.215.72.226 0:0:0:0:0:ffff:b5d7:48e2
181.215.72.227 0:0:0:0:0:ffff:b5d7:48e3
181.215.72.228 0:0:0:0:0:ffff:b5d7:48e4
181.215.72.229 0:0:0:0:0:ffff:b5d7:48e5
181.215.72.230 0:0:0:0:0:ffff:b5d7:48e6
181.215.72.231 0:0:0:0:0:ffff:b5d7:48e7
181.215.72.232 0:0:0:0:0:ffff:b5d7:48e8
181.215.72.233 0:0:0:0:0:ffff:b5d7:48e9
181.215.72.234 0:0:0:0:0:ffff:b5d7:48ea
181.215.72.235 0:0:0:0:0:ffff:b5d7:48eb
181.215.72.236 0:0:0:0:0:ffff:b5d7:48ec
181.215.72.237 0:0:0:0:0:ffff:b5d7:48ed
181.215.72.238 0:0:0:0:0:ffff:b5d7:48ee
181.215.72.239 0:0:0:0:0:ffff:b5d7:48ef
181.215.72.240 0:0:0:0:0:ffff:b5d7:48f0
181.215.72.241 0:0:0:0:0:ffff:b5d7:48f1
181.215.72.242 0:0:0:0:0:ffff:b5d7:48f2
181.215.72.243 0:0:0:0:0:ffff:b5d7:48f3
181.215.72.244 0:0:0:0:0:ffff:b5d7:48f4
181.215.72.245 0:0:0:0:0:ffff:b5d7:48f5
181.215.72.246 0:0:0:0:0:ffff:b5d7:48f6
181.215.72.247 0:0:0:0:0:ffff:b5d7:48f7
181.215.72.248 0:0:0:0:0:ffff:b5d7:48f8
181.215.72.249 0:0:0:0:0:ffff:b5d7:48f9
181.215.72.250 0:0:0:0:0:ffff:b5d7:48fa
181.215.72.251 0:0:0:0:0:ffff:b5d7:48fb
181.215.72.252 0:0:0:0:0:ffff:b5d7:48fc
181.215.72.253 0:0:0:0:0:ffff:b5d7:48fd
181.215.72.254 0:0:0:0:0:ffff:b5d7:48fe
181.215.72.255 0:0:0:0:0:ffff:b5d7:48ff


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.