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
81.152.72.1 0:0:0:0:0:ffff:5198:4801
81.152.72.2 0:0:0:0:0:ffff:5198:4802
81.152.72.3 0:0:0:0:0:ffff:5198:4803
81.152.72.4 0:0:0:0:0:ffff:5198:4804
81.152.72.5 0:0:0:0:0:ffff:5198:4805
81.152.72.6 0:0:0:0:0:ffff:5198:4806
81.152.72.7 0:0:0:0:0:ffff:5198:4807
81.152.72.8 0:0:0:0:0:ffff:5198:4808
81.152.72.9 0:0:0:0:0:ffff:5198:4809
81.152.72.10 0:0:0:0:0:ffff:5198:480a
81.152.72.11 0:0:0:0:0:ffff:5198:480b
81.152.72.12 0:0:0:0:0:ffff:5198:480c
81.152.72.13 0:0:0:0:0:ffff:5198:480d
81.152.72.14 0:0:0:0:0:ffff:5198:480e
81.152.72.15 0:0:0:0:0:ffff:5198:480f
81.152.72.16 0:0:0:0:0:ffff:5198:4810
81.152.72.17 0:0:0:0:0:ffff:5198:4811
81.152.72.18 0:0:0:0:0:ffff:5198:4812
81.152.72.19 0:0:0:0:0:ffff:5198:4813
81.152.72.20 0:0:0:0:0:ffff:5198:4814
81.152.72.21 0:0:0:0:0:ffff:5198:4815
81.152.72.22 0:0:0:0:0:ffff:5198:4816
81.152.72.23 0:0:0:0:0:ffff:5198:4817
81.152.72.24 0:0:0:0:0:ffff:5198:4818
81.152.72.25 0:0:0:0:0:ffff:5198:4819
81.152.72.26 0:0:0:0:0:ffff:5198:481a
81.152.72.27 0:0:0:0:0:ffff:5198:481b
81.152.72.28 0:0:0:0:0:ffff:5198:481c
81.152.72.29 0:0:0:0:0:ffff:5198:481d
81.152.72.30 0:0:0:0:0:ffff:5198:481e
81.152.72.31 0:0:0:0:0:ffff:5198:481f
81.152.72.32 0:0:0:0:0:ffff:5198:4820
81.152.72.33 0:0:0:0:0:ffff:5198:4821
81.152.72.34 0:0:0:0:0:ffff:5198:4822
81.152.72.35 0:0:0:0:0:ffff:5198:4823
81.152.72.36 0:0:0:0:0:ffff:5198:4824
81.152.72.37 0:0:0:0:0:ffff:5198:4825
81.152.72.38 0:0:0:0:0:ffff:5198:4826
81.152.72.39 0:0:0:0:0:ffff:5198:4827
81.152.72.40 0:0:0:0:0:ffff:5198:4828
81.152.72.41 0:0:0:0:0:ffff:5198:4829
81.152.72.42 0:0:0:0:0:ffff:5198:482a
81.152.72.43 0:0:0:0:0:ffff:5198:482b
81.152.72.44 0:0:0:0:0:ffff:5198:482c
81.152.72.45 0:0:0:0:0:ffff:5198:482d
81.152.72.46 0:0:0:0:0:ffff:5198:482e
81.152.72.47 0:0:0:0:0:ffff:5198:482f
81.152.72.48 0:0:0:0:0:ffff:5198:4830
81.152.72.49 0:0:0:0:0:ffff:5198:4831
81.152.72.50 0:0:0:0:0:ffff:5198:4832
81.152.72.51 0:0:0:0:0:ffff:5198:4833
81.152.72.52 0:0:0:0:0:ffff:5198:4834
81.152.72.53 0:0:0:0:0:ffff:5198:4835
81.152.72.54 0:0:0:0:0:ffff:5198:4836
81.152.72.55 0:0:0:0:0:ffff:5198:4837
81.152.72.56 0:0:0:0:0:ffff:5198:4838
81.152.72.57 0:0:0:0:0:ffff:5198:4839
81.152.72.58 0:0:0:0:0:ffff:5198:483a
81.152.72.59 0:0:0:0:0:ffff:5198:483b
81.152.72.60 0:0:0:0:0:ffff:5198:483c


81.152.72.61 0:0:0:0:0:ffff:5198:483d
81.152.72.62 0:0:0:0:0:ffff:5198:483e
81.152.72.63 0:0:0:0:0:ffff:5198:483f
81.152.72.64 0:0:0:0:0:ffff:5198:4840
81.152.72.65 0:0:0:0:0:ffff:5198:4841
81.152.72.66 0:0:0:0:0:ffff:5198:4842
81.152.72.67 0:0:0:0:0:ffff:5198:4843
81.152.72.68 0:0:0:0:0:ffff:5198:4844
81.152.72.69 0:0:0:0:0:ffff:5198:4845
81.152.72.70 0:0:0:0:0:ffff:5198:4846
81.152.72.71 0:0:0:0:0:ffff:5198:4847
81.152.72.72 0:0:0:0:0:ffff:5198:4848
81.152.72.73 0:0:0:0:0:ffff:5198:4849
81.152.72.74 0:0:0:0:0:ffff:5198:484a
81.152.72.75 0:0:0:0:0:ffff:5198:484b
81.152.72.76 0:0:0:0:0:ffff:5198:484c
81.152.72.77 0:0:0:0:0:ffff:5198:484d
81.152.72.78 0:0:0:0:0:ffff:5198:484e
81.152.72.79 0:0:0:0:0:ffff:5198:484f
81.152.72.80 0:0:0:0:0:ffff:5198:4850
81.152.72.81 0:0:0:0:0:ffff:5198:4851
81.152.72.82 0:0:0:0:0:ffff:5198:4852
81.152.72.83 0:0:0:0:0:ffff:5198:4853
81.152.72.84 0:0:0:0:0:ffff:5198:4854
81.152.72.85 0:0:0:0:0:ffff:5198:4855
81.152.72.86 0:0:0:0:0:ffff:5198:4856
81.152.72.87 0:0:0:0:0:ffff:5198:4857
81.152.72.88 0:0:0:0:0:ffff:5198:4858
81.152.72.89 0:0:0:0:0:ffff:5198:4859
81.152.72.90 0:0:0:0:0:ffff:5198:485a
81.152.72.91 0:0:0:0:0:ffff:5198:485b
81.152.72.92 0:0:0:0:0:ffff:5198:485c
81.152.72.93 0:0:0:0:0:ffff:5198:485d
81.152.72.94 0:0:0:0:0:ffff:5198:485e
81.152.72.95 0:0:0:0:0:ffff:5198:485f
81.152.72.96 0:0:0:0:0:ffff:5198:4860
81.152.72.97 0:0:0:0:0:ffff:5198:4861
81.152.72.98 0:0:0:0:0:ffff:5198:4862
81.152.72.99 0:0:0:0:0:ffff:5198:4863
81.152.72.100 0:0:0:0:0:ffff:5198:4864
81.152.72.101 0:0:0:0:0:ffff:5198:4865
81.152.72.102 0:0:0:0:0:ffff:5198:4866
81.152.72.103 0:0:0:0:0:ffff:5198:4867
81.152.72.104 0:0:0:0:0:ffff:5198:4868
81.152.72.105 0:0:0:0:0:ffff:5198:4869
81.152.72.106 0:0:0:0:0:ffff:5198:486a
81.152.72.107 0:0:0:0:0:ffff:5198:486b
81.152.72.108 0:0:0:0:0:ffff:5198:486c
81.152.72.109 0:0:0:0:0:ffff:5198:486d
81.152.72.110 0:0:0:0:0:ffff:5198:486e
81.152.72.111 0:0:0:0:0:ffff:5198:486f
81.152.72.112 0:0:0:0:0:ffff:5198:4870
81.152.72.113 0:0:0:0:0:ffff:5198:4871
81.152.72.114 0:0:0:0:0:ffff:5198:4872
81.152.72.115 0:0:0:0:0:ffff:5198:4873
81.152.72.116 0:0:0:0:0:ffff:5198:4874
81.152.72.117 0:0:0:0:0:ffff:5198:4875
81.152.72.118 0:0:0:0:0:ffff:5198:4876
81.152.72.119 0:0:0:0:0:ffff:5198:4877
81.152.72.120 0:0:0:0:0:ffff:5198:4878


81.152.72.121 0:0:0:0:0:ffff:5198:4879
81.152.72.122 0:0:0:0:0:ffff:5198:487a
81.152.72.123 0:0:0:0:0:ffff:5198:487b
81.152.72.124 0:0:0:0:0:ffff:5198:487c
81.152.72.125 0:0:0:0:0:ffff:5198:487d
81.152.72.126 0:0:0:0:0:ffff:5198:487e
81.152.72.127 0:0:0:0:0:ffff:5198:487f
81.152.72.128 0:0:0:0:0:ffff:5198:4880
81.152.72.129 0:0:0:0:0:ffff:5198:4881
81.152.72.130 0:0:0:0:0:ffff:5198:4882
81.152.72.131 0:0:0:0:0:ffff:5198:4883
81.152.72.132 0:0:0:0:0:ffff:5198:4884
81.152.72.133 0:0:0:0:0:ffff:5198:4885
81.152.72.134 0:0:0:0:0:ffff:5198:4886
81.152.72.135 0:0:0:0:0:ffff:5198:4887
81.152.72.136 0:0:0:0:0:ffff:5198:4888
81.152.72.137 0:0:0:0:0:ffff:5198:4889
81.152.72.138 0:0:0:0:0:ffff:5198:488a
81.152.72.139 0:0:0:0:0:ffff:5198:488b
81.152.72.140 0:0:0:0:0:ffff:5198:488c
81.152.72.141 0:0:0:0:0:ffff:5198:488d
81.152.72.142 0:0:0:0:0:ffff:5198:488e
81.152.72.143 0:0:0:0:0:ffff:5198:488f
81.152.72.144 0:0:0:0:0:ffff:5198:4890
81.152.72.145 0:0:0:0:0:ffff:5198:4891
81.152.72.146 0:0:0:0:0:ffff:5198:4892
81.152.72.147 0:0:0:0:0:ffff:5198:4893
81.152.72.148 0:0:0:0:0:ffff:5198:4894
81.152.72.149 0:0:0:0:0:ffff:5198:4895
81.152.72.150 0:0:0:0:0:ffff:5198:4896
81.152.72.151 0:0:0:0:0:ffff:5198:4897
81.152.72.152 0:0:0:0:0:ffff:5198:4898
81.152.72.153 0:0:0:0:0:ffff:5198:4899
81.152.72.154 0:0:0:0:0:ffff:5198:489a
81.152.72.155 0:0:0:0:0:ffff:5198:489b
81.152.72.156 0:0:0:0:0:ffff:5198:489c
81.152.72.157 0:0:0:0:0:ffff:5198:489d
81.152.72.158 0:0:0:0:0:ffff:5198:489e
81.152.72.159 0:0:0:0:0:ffff:5198:489f
81.152.72.160 0:0:0:0:0:ffff:5198:48a0
81.152.72.161 0:0:0:0:0:ffff:5198:48a1
81.152.72.162 0:0:0:0:0:ffff:5198:48a2
81.152.72.163 0:0:0:0:0:ffff:5198:48a3
81.152.72.164 0:0:0:0:0:ffff:5198:48a4
81.152.72.165 0:0:0:0:0:ffff:5198:48a5
81.152.72.166 0:0:0:0:0:ffff:5198:48a6
81.152.72.167 0:0:0:0:0:ffff:5198:48a7
81.152.72.168 0:0:0:0:0:ffff:5198:48a8
81.152.72.169 0:0:0:0:0:ffff:5198:48a9
81.152.72.170 0:0:0:0:0:ffff:5198:48aa
81.152.72.171 0:0:0:0:0:ffff:5198:48ab
81.152.72.172 0:0:0:0:0:ffff:5198:48ac
81.152.72.173 0:0:0:0:0:ffff:5198:48ad
81.152.72.174 0:0:0:0:0:ffff:5198:48ae
81.152.72.175 0:0:0:0:0:ffff:5198:48af
81.152.72.176 0:0:0:0:0:ffff:5198:48b0
81.152.72.177 0:0:0:0:0:ffff:5198:48b1
81.152.72.178 0:0:0:0:0:ffff:5198:48b2
81.152.72.179 0:0:0:0:0:ffff:5198:48b3
81.152.72.180 0:0:0:0:0:ffff:5198:48b4


81.152.72.181 0:0:0:0:0:ffff:5198:48b5
81.152.72.182 0:0:0:0:0:ffff:5198:48b6
81.152.72.183 0:0:0:0:0:ffff:5198:48b7
81.152.72.184 0:0:0:0:0:ffff:5198:48b8
81.152.72.185 0:0:0:0:0:ffff:5198:48b9
81.152.72.186 0:0:0:0:0:ffff:5198:48ba
81.152.72.187 0:0:0:0:0:ffff:5198:48bb
81.152.72.188 0:0:0:0:0:ffff:5198:48bc
81.152.72.189 0:0:0:0:0:ffff:5198:48bd
81.152.72.190 0:0:0:0:0:ffff:5198:48be
81.152.72.191 0:0:0:0:0:ffff:5198:48bf
81.152.72.192 0:0:0:0:0:ffff:5198:48c0
81.152.72.193 0:0:0:0:0:ffff:5198:48c1
81.152.72.194 0:0:0:0:0:ffff:5198:48c2
81.152.72.195 0:0:0:0:0:ffff:5198:48c3
81.152.72.196 0:0:0:0:0:ffff:5198:48c4
81.152.72.197 0:0:0:0:0:ffff:5198:48c5
81.152.72.198 0:0:0:0:0:ffff:5198:48c6
81.152.72.199 0:0:0:0:0:ffff:5198:48c7
81.152.72.200 0:0:0:0:0:ffff:5198:48c8
81.152.72.201 0:0:0:0:0:ffff:5198:48c9
81.152.72.202 0:0:0:0:0:ffff:5198:48ca
81.152.72.203 0:0:0:0:0:ffff:5198:48cb
81.152.72.204 0:0:0:0:0:ffff:5198:48cc
81.152.72.205 0:0:0:0:0:ffff:5198:48cd
81.152.72.206 0:0:0:0:0:ffff:5198:48ce
81.152.72.207 0:0:0:0:0:ffff:5198:48cf
81.152.72.208 0:0:0:0:0:ffff:5198:48d0
81.152.72.209 0:0:0:0:0:ffff:5198:48d1
81.152.72.210 0:0:0:0:0:ffff:5198:48d2
81.152.72.211 0:0:0:0:0:ffff:5198:48d3
81.152.72.212 0:0:0:0:0:ffff:5198:48d4
81.152.72.213 0:0:0:0:0:ffff:5198:48d5
81.152.72.214 0:0:0:0:0:ffff:5198:48d6
81.152.72.215 0:0:0:0:0:ffff:5198:48d7
81.152.72.216 0:0:0:0:0:ffff:5198:48d8
81.152.72.217 0:0:0:0:0:ffff:5198:48d9
81.152.72.218 0:0:0:0:0:ffff:5198:48da
81.152.72.219 0:0:0:0:0:ffff:5198:48db
81.152.72.220 0:0:0:0:0:ffff:5198:48dc
81.152.72.221 0:0:0:0:0:ffff:5198:48dd
81.152.72.222 0:0:0:0:0:ffff:5198:48de
81.152.72.223 0:0:0:0:0:ffff:5198:48df
81.152.72.224 0:0:0:0:0:ffff:5198:48e0
81.152.72.225 0:0:0:0:0:ffff:5198:48e1
81.152.72.226 0:0:0:0:0:ffff:5198:48e2
81.152.72.227 0:0:0:0:0:ffff:5198:48e3
81.152.72.228 0:0:0:0:0:ffff:5198:48e4
81.152.72.229 0:0:0:0:0:ffff:5198:48e5
81.152.72.230 0:0:0:0:0:ffff:5198:48e6
81.152.72.231 0:0:0:0:0:ffff:5198:48e7
81.152.72.232 0:0:0:0:0:ffff:5198:48e8
81.152.72.233 0:0:0:0:0:ffff:5198:48e9
81.152.72.234 0:0:0:0:0:ffff:5198:48ea
81.152.72.235 0:0:0:0:0:ffff:5198:48eb
81.152.72.236 0:0:0:0:0:ffff:5198:48ec
81.152.72.237 0:0:0:0:0:ffff:5198:48ed
81.152.72.238 0:0:0:0:0:ffff:5198:48ee
81.152.72.239 0:0:0:0:0:ffff:5198:48ef
81.152.72.240 0:0:0:0:0:ffff:5198:48f0
81.152.72.241 0:0:0:0:0:ffff:5198:48f1
81.152.72.242 0:0:0:0:0:ffff:5198:48f2
81.152.72.243 0:0:0:0:0:ffff:5198:48f3
81.152.72.244 0:0:0:0:0:ffff:5198:48f4
81.152.72.245 0:0:0:0:0:ffff:5198:48f5
81.152.72.246 0:0:0:0:0:ffff:5198:48f6
81.152.72.247 0:0:0:0:0:ffff:5198:48f7
81.152.72.248 0:0:0:0:0:ffff:5198:48f8
81.152.72.249 0:0:0:0:0:ffff:5198:48f9
81.152.72.250 0:0:0:0:0:ffff:5198:48fa
81.152.72.251 0:0:0:0:0:ffff:5198:48fb
81.152.72.252 0:0:0:0:0:ffff:5198:48fc
81.152.72.253 0:0:0:0:0:ffff:5198:48fd
81.152.72.254 0:0:0:0:0:ffff:5198:48fe
81.152.72.255 0:0:0:0:0:ffff:5198:48ff


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.