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
172.156.72.1 0:0:0:0:0:ffff:ac9c:4801
172.156.72.2 0:0:0:0:0:ffff:ac9c:4802
172.156.72.3 0:0:0:0:0:ffff:ac9c:4803
172.156.72.4 0:0:0:0:0:ffff:ac9c:4804
172.156.72.5 0:0:0:0:0:ffff:ac9c:4805
172.156.72.6 0:0:0:0:0:ffff:ac9c:4806
172.156.72.7 0:0:0:0:0:ffff:ac9c:4807
172.156.72.8 0:0:0:0:0:ffff:ac9c:4808
172.156.72.9 0:0:0:0:0:ffff:ac9c:4809
172.156.72.10 0:0:0:0:0:ffff:ac9c:480a
172.156.72.11 0:0:0:0:0:ffff:ac9c:480b
172.156.72.12 0:0:0:0:0:ffff:ac9c:480c
172.156.72.13 0:0:0:0:0:ffff:ac9c:480d
172.156.72.14 0:0:0:0:0:ffff:ac9c:480e
172.156.72.15 0:0:0:0:0:ffff:ac9c:480f
172.156.72.16 0:0:0:0:0:ffff:ac9c:4810
172.156.72.17 0:0:0:0:0:ffff:ac9c:4811
172.156.72.18 0:0:0:0:0:ffff:ac9c:4812
172.156.72.19 0:0:0:0:0:ffff:ac9c:4813
172.156.72.20 0:0:0:0:0:ffff:ac9c:4814
172.156.72.21 0:0:0:0:0:ffff:ac9c:4815
172.156.72.22 0:0:0:0:0:ffff:ac9c:4816
172.156.72.23 0:0:0:0:0:ffff:ac9c:4817
172.156.72.24 0:0:0:0:0:ffff:ac9c:4818
172.156.72.25 0:0:0:0:0:ffff:ac9c:4819
172.156.72.26 0:0:0:0:0:ffff:ac9c:481a
172.156.72.27 0:0:0:0:0:ffff:ac9c:481b
172.156.72.28 0:0:0:0:0:ffff:ac9c:481c
172.156.72.29 0:0:0:0:0:ffff:ac9c:481d
172.156.72.30 0:0:0:0:0:ffff:ac9c:481e
172.156.72.31 0:0:0:0:0:ffff:ac9c:481f
172.156.72.32 0:0:0:0:0:ffff:ac9c:4820
172.156.72.33 0:0:0:0:0:ffff:ac9c:4821
172.156.72.34 0:0:0:0:0:ffff:ac9c:4822
172.156.72.35 0:0:0:0:0:ffff:ac9c:4823
172.156.72.36 0:0:0:0:0:ffff:ac9c:4824
172.156.72.37 0:0:0:0:0:ffff:ac9c:4825
172.156.72.38 0:0:0:0:0:ffff:ac9c:4826
172.156.72.39 0:0:0:0:0:ffff:ac9c:4827
172.156.72.40 0:0:0:0:0:ffff:ac9c:4828
172.156.72.41 0:0:0:0:0:ffff:ac9c:4829
172.156.72.42 0:0:0:0:0:ffff:ac9c:482a
172.156.72.43 0:0:0:0:0:ffff:ac9c:482b
172.156.72.44 0:0:0:0:0:ffff:ac9c:482c
172.156.72.45 0:0:0:0:0:ffff:ac9c:482d
172.156.72.46 0:0:0:0:0:ffff:ac9c:482e
172.156.72.47 0:0:0:0:0:ffff:ac9c:482f
172.156.72.48 0:0:0:0:0:ffff:ac9c:4830
172.156.72.49 0:0:0:0:0:ffff:ac9c:4831
172.156.72.50 0:0:0:0:0:ffff:ac9c:4832
172.156.72.51 0:0:0:0:0:ffff:ac9c:4833
172.156.72.52 0:0:0:0:0:ffff:ac9c:4834
172.156.72.53 0:0:0:0:0:ffff:ac9c:4835
172.156.72.54 0:0:0:0:0:ffff:ac9c:4836
172.156.72.55 0:0:0:0:0:ffff:ac9c:4837
172.156.72.56 0:0:0:0:0:ffff:ac9c:4838
172.156.72.57 0:0:0:0:0:ffff:ac9c:4839
172.156.72.58 0:0:0:0:0:ffff:ac9c:483a
172.156.72.59 0:0:0:0:0:ffff:ac9c:483b
172.156.72.60 0:0:0:0:0:ffff:ac9c:483c


172.156.72.61 0:0:0:0:0:ffff:ac9c:483d
172.156.72.62 0:0:0:0:0:ffff:ac9c:483e
172.156.72.63 0:0:0:0:0:ffff:ac9c:483f
172.156.72.64 0:0:0:0:0:ffff:ac9c:4840
172.156.72.65 0:0:0:0:0:ffff:ac9c:4841
172.156.72.66 0:0:0:0:0:ffff:ac9c:4842
172.156.72.67 0:0:0:0:0:ffff:ac9c:4843
172.156.72.68 0:0:0:0:0:ffff:ac9c:4844
172.156.72.69 0:0:0:0:0:ffff:ac9c:4845
172.156.72.70 0:0:0:0:0:ffff:ac9c:4846
172.156.72.71 0:0:0:0:0:ffff:ac9c:4847
172.156.72.72 0:0:0:0:0:ffff:ac9c:4848
172.156.72.73 0:0:0:0:0:ffff:ac9c:4849
172.156.72.74 0:0:0:0:0:ffff:ac9c:484a
172.156.72.75 0:0:0:0:0:ffff:ac9c:484b
172.156.72.76 0:0:0:0:0:ffff:ac9c:484c
172.156.72.77 0:0:0:0:0:ffff:ac9c:484d
172.156.72.78 0:0:0:0:0:ffff:ac9c:484e
172.156.72.79 0:0:0:0:0:ffff:ac9c:484f
172.156.72.80 0:0:0:0:0:ffff:ac9c:4850
172.156.72.81 0:0:0:0:0:ffff:ac9c:4851
172.156.72.82 0:0:0:0:0:ffff:ac9c:4852
172.156.72.83 0:0:0:0:0:ffff:ac9c:4853
172.156.72.84 0:0:0:0:0:ffff:ac9c:4854
172.156.72.85 0:0:0:0:0:ffff:ac9c:4855
172.156.72.86 0:0:0:0:0:ffff:ac9c:4856
172.156.72.87 0:0:0:0:0:ffff:ac9c:4857
172.156.72.88 0:0:0:0:0:ffff:ac9c:4858
172.156.72.89 0:0:0:0:0:ffff:ac9c:4859
172.156.72.90 0:0:0:0:0:ffff:ac9c:485a
172.156.72.91 0:0:0:0:0:ffff:ac9c:485b
172.156.72.92 0:0:0:0:0:ffff:ac9c:485c
172.156.72.93 0:0:0:0:0:ffff:ac9c:485d
172.156.72.94 0:0:0:0:0:ffff:ac9c:485e
172.156.72.95 0:0:0:0:0:ffff:ac9c:485f
172.156.72.96 0:0:0:0:0:ffff:ac9c:4860
172.156.72.97 0:0:0:0:0:ffff:ac9c:4861
172.156.72.98 0:0:0:0:0:ffff:ac9c:4862
172.156.72.99 0:0:0:0:0:ffff:ac9c:4863
172.156.72.100 0:0:0:0:0:ffff:ac9c:4864
172.156.72.101 0:0:0:0:0:ffff:ac9c:4865
172.156.72.102 0:0:0:0:0:ffff:ac9c:4866
172.156.72.103 0:0:0:0:0:ffff:ac9c:4867
172.156.72.104 0:0:0:0:0:ffff:ac9c:4868
172.156.72.105 0:0:0:0:0:ffff:ac9c:4869
172.156.72.106 0:0:0:0:0:ffff:ac9c:486a
172.156.72.107 0:0:0:0:0:ffff:ac9c:486b
172.156.72.108 0:0:0:0:0:ffff:ac9c:486c
172.156.72.109 0:0:0:0:0:ffff:ac9c:486d
172.156.72.110 0:0:0:0:0:ffff:ac9c:486e
172.156.72.111 0:0:0:0:0:ffff:ac9c:486f
172.156.72.112 0:0:0:0:0:ffff:ac9c:4870
172.156.72.113 0:0:0:0:0:ffff:ac9c:4871
172.156.72.114 0:0:0:0:0:ffff:ac9c:4872
172.156.72.115 0:0:0:0:0:ffff:ac9c:4873
172.156.72.116 0:0:0:0:0:ffff:ac9c:4874
172.156.72.117 0:0:0:0:0:ffff:ac9c:4875
172.156.72.118 0:0:0:0:0:ffff:ac9c:4876
172.156.72.119 0:0:0:0:0:ffff:ac9c:4877
172.156.72.120 0:0:0:0:0:ffff:ac9c:4878


172.156.72.121 0:0:0:0:0:ffff:ac9c:4879
172.156.72.122 0:0:0:0:0:ffff:ac9c:487a
172.156.72.123 0:0:0:0:0:ffff:ac9c:487b
172.156.72.124 0:0:0:0:0:ffff:ac9c:487c
172.156.72.125 0:0:0:0:0:ffff:ac9c:487d
172.156.72.126 0:0:0:0:0:ffff:ac9c:487e
172.156.72.127 0:0:0:0:0:ffff:ac9c:487f
172.156.72.128 0:0:0:0:0:ffff:ac9c:4880
172.156.72.129 0:0:0:0:0:ffff:ac9c:4881
172.156.72.130 0:0:0:0:0:ffff:ac9c:4882
172.156.72.131 0:0:0:0:0:ffff:ac9c:4883
172.156.72.132 0:0:0:0:0:ffff:ac9c:4884
172.156.72.133 0:0:0:0:0:ffff:ac9c:4885
172.156.72.134 0:0:0:0:0:ffff:ac9c:4886
172.156.72.135 0:0:0:0:0:ffff:ac9c:4887
172.156.72.136 0:0:0:0:0:ffff:ac9c:4888
172.156.72.137 0:0:0:0:0:ffff:ac9c:4889
172.156.72.138 0:0:0:0:0:ffff:ac9c:488a
172.156.72.139 0:0:0:0:0:ffff:ac9c:488b
172.156.72.140 0:0:0:0:0:ffff:ac9c:488c
172.156.72.141 0:0:0:0:0:ffff:ac9c:488d
172.156.72.142 0:0:0:0:0:ffff:ac9c:488e
172.156.72.143 0:0:0:0:0:ffff:ac9c:488f
172.156.72.144 0:0:0:0:0:ffff:ac9c:4890
172.156.72.145 0:0:0:0:0:ffff:ac9c:4891
172.156.72.146 0:0:0:0:0:ffff:ac9c:4892
172.156.72.147 0:0:0:0:0:ffff:ac9c:4893
172.156.72.148 0:0:0:0:0:ffff:ac9c:4894
172.156.72.149 0:0:0:0:0:ffff:ac9c:4895
172.156.72.150 0:0:0:0:0:ffff:ac9c:4896
172.156.72.151 0:0:0:0:0:ffff:ac9c:4897
172.156.72.152 0:0:0:0:0:ffff:ac9c:4898
172.156.72.153 0:0:0:0:0:ffff:ac9c:4899
172.156.72.154 0:0:0:0:0:ffff:ac9c:489a
172.156.72.155 0:0:0:0:0:ffff:ac9c:489b
172.156.72.156 0:0:0:0:0:ffff:ac9c:489c
172.156.72.157 0:0:0:0:0:ffff:ac9c:489d
172.156.72.158 0:0:0:0:0:ffff:ac9c:489e
172.156.72.159 0:0:0:0:0:ffff:ac9c:489f
172.156.72.160 0:0:0:0:0:ffff:ac9c:48a0
172.156.72.161 0:0:0:0:0:ffff:ac9c:48a1
172.156.72.162 0:0:0:0:0:ffff:ac9c:48a2
172.156.72.163 0:0:0:0:0:ffff:ac9c:48a3
172.156.72.164 0:0:0:0:0:ffff:ac9c:48a4
172.156.72.165 0:0:0:0:0:ffff:ac9c:48a5
172.156.72.166 0:0:0:0:0:ffff:ac9c:48a6
172.156.72.167 0:0:0:0:0:ffff:ac9c:48a7
172.156.72.168 0:0:0:0:0:ffff:ac9c:48a8
172.156.72.169 0:0:0:0:0:ffff:ac9c:48a9
172.156.72.170 0:0:0:0:0:ffff:ac9c:48aa
172.156.72.171 0:0:0:0:0:ffff:ac9c:48ab
172.156.72.172 0:0:0:0:0:ffff:ac9c:48ac
172.156.72.173 0:0:0:0:0:ffff:ac9c:48ad
172.156.72.174 0:0:0:0:0:ffff:ac9c:48ae
172.156.72.175 0:0:0:0:0:ffff:ac9c:48af
172.156.72.176 0:0:0:0:0:ffff:ac9c:48b0
172.156.72.177 0:0:0:0:0:ffff:ac9c:48b1
172.156.72.178 0:0:0:0:0:ffff:ac9c:48b2
172.156.72.179 0:0:0:0:0:ffff:ac9c:48b3
172.156.72.180 0:0:0:0:0:ffff:ac9c:48b4


172.156.72.181 0:0:0:0:0:ffff:ac9c:48b5
172.156.72.182 0:0:0:0:0:ffff:ac9c:48b6
172.156.72.183 0:0:0:0:0:ffff:ac9c:48b7
172.156.72.184 0:0:0:0:0:ffff:ac9c:48b8
172.156.72.185 0:0:0:0:0:ffff:ac9c:48b9
172.156.72.186 0:0:0:0:0:ffff:ac9c:48ba
172.156.72.187 0:0:0:0:0:ffff:ac9c:48bb
172.156.72.188 0:0:0:0:0:ffff:ac9c:48bc
172.156.72.189 0:0:0:0:0:ffff:ac9c:48bd
172.156.72.190 0:0:0:0:0:ffff:ac9c:48be
172.156.72.191 0:0:0:0:0:ffff:ac9c:48bf
172.156.72.192 0:0:0:0:0:ffff:ac9c:48c0
172.156.72.193 0:0:0:0:0:ffff:ac9c:48c1
172.156.72.194 0:0:0:0:0:ffff:ac9c:48c2
172.156.72.195 0:0:0:0:0:ffff:ac9c:48c3
172.156.72.196 0:0:0:0:0:ffff:ac9c:48c4
172.156.72.197 0:0:0:0:0:ffff:ac9c:48c5
172.156.72.198 0:0:0:0:0:ffff:ac9c:48c6
172.156.72.199 0:0:0:0:0:ffff:ac9c:48c7
172.156.72.200 0:0:0:0:0:ffff:ac9c:48c8
172.156.72.201 0:0:0:0:0:ffff:ac9c:48c9
172.156.72.202 0:0:0:0:0:ffff:ac9c:48ca
172.156.72.203 0:0:0:0:0:ffff:ac9c:48cb
172.156.72.204 0:0:0:0:0:ffff:ac9c:48cc
172.156.72.205 0:0:0:0:0:ffff:ac9c:48cd
172.156.72.206 0:0:0:0:0:ffff:ac9c:48ce
172.156.72.207 0:0:0:0:0:ffff:ac9c:48cf
172.156.72.208 0:0:0:0:0:ffff:ac9c:48d0
172.156.72.209 0:0:0:0:0:ffff:ac9c:48d1
172.156.72.210 0:0:0:0:0:ffff:ac9c:48d2
172.156.72.211 0:0:0:0:0:ffff:ac9c:48d3
172.156.72.212 0:0:0:0:0:ffff:ac9c:48d4
172.156.72.213 0:0:0:0:0:ffff:ac9c:48d5
172.156.72.214 0:0:0:0:0:ffff:ac9c:48d6
172.156.72.215 0:0:0:0:0:ffff:ac9c:48d7
172.156.72.216 0:0:0:0:0:ffff:ac9c:48d8
172.156.72.217 0:0:0:0:0:ffff:ac9c:48d9
172.156.72.218 0:0:0:0:0:ffff:ac9c:48da
172.156.72.219 0:0:0:0:0:ffff:ac9c:48db
172.156.72.220 0:0:0:0:0:ffff:ac9c:48dc
172.156.72.221 0:0:0:0:0:ffff:ac9c:48dd
172.156.72.222 0:0:0:0:0:ffff:ac9c:48de
172.156.72.223 0:0:0:0:0:ffff:ac9c:48df
172.156.72.224 0:0:0:0:0:ffff:ac9c:48e0
172.156.72.225 0:0:0:0:0:ffff:ac9c:48e1
172.156.72.226 0:0:0:0:0:ffff:ac9c:48e2
172.156.72.227 0:0:0:0:0:ffff:ac9c:48e3
172.156.72.228 0:0:0:0:0:ffff:ac9c:48e4
172.156.72.229 0:0:0:0:0:ffff:ac9c:48e5
172.156.72.230 0:0:0:0:0:ffff:ac9c:48e6
172.156.72.231 0:0:0:0:0:ffff:ac9c:48e7
172.156.72.232 0:0:0:0:0:ffff:ac9c:48e8
172.156.72.233 0:0:0:0:0:ffff:ac9c:48e9
172.156.72.234 0:0:0:0:0:ffff:ac9c:48ea
172.156.72.235 0:0:0:0:0:ffff:ac9c:48eb
172.156.72.236 0:0:0:0:0:ffff:ac9c:48ec
172.156.72.237 0:0:0:0:0:ffff:ac9c:48ed
172.156.72.238 0:0:0:0:0:ffff:ac9c:48ee
172.156.72.239 0:0:0:0:0:ffff:ac9c:48ef
172.156.72.240 0:0:0:0:0:ffff:ac9c:48f0
172.156.72.241 0:0:0:0:0:ffff:ac9c:48f1
172.156.72.242 0:0:0:0:0:ffff:ac9c:48f2
172.156.72.243 0:0:0:0:0:ffff:ac9c:48f3
172.156.72.244 0:0:0:0:0:ffff:ac9c:48f4
172.156.72.245 0:0:0:0:0:ffff:ac9c:48f5
172.156.72.246 0:0:0:0:0:ffff:ac9c:48f6
172.156.72.247 0:0:0:0:0:ffff:ac9c:48f7
172.156.72.248 0:0:0:0:0:ffff:ac9c:48f8
172.156.72.249 0:0:0:0:0:ffff:ac9c:48f9
172.156.72.250 0:0:0:0:0:ffff:ac9c:48fa
172.156.72.251 0:0:0:0:0:ffff:ac9c:48fb
172.156.72.252 0:0:0:0:0:ffff:ac9c:48fc
172.156.72.253 0:0:0:0:0:ffff:ac9c:48fd
172.156.72.254 0:0:0:0:0:ffff:ac9c:48fe
172.156.72.255 0:0:0:0:0:ffff:ac9c: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.