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
209.15.72.1 0:0:0:0:0:ffff:d10f:4801
209.15.72.2 0:0:0:0:0:ffff:d10f:4802
209.15.72.3 0:0:0:0:0:ffff:d10f:4803
209.15.72.4 0:0:0:0:0:ffff:d10f:4804
209.15.72.5 0:0:0:0:0:ffff:d10f:4805
209.15.72.6 0:0:0:0:0:ffff:d10f:4806
209.15.72.7 0:0:0:0:0:ffff:d10f:4807
209.15.72.8 0:0:0:0:0:ffff:d10f:4808
209.15.72.9 0:0:0:0:0:ffff:d10f:4809
209.15.72.10 0:0:0:0:0:ffff:d10f:480a
209.15.72.11 0:0:0:0:0:ffff:d10f:480b
209.15.72.12 0:0:0:0:0:ffff:d10f:480c
209.15.72.13 0:0:0:0:0:ffff:d10f:480d
209.15.72.14 0:0:0:0:0:ffff:d10f:480e
209.15.72.15 0:0:0:0:0:ffff:d10f:480f
209.15.72.16 0:0:0:0:0:ffff:d10f:4810
209.15.72.17 0:0:0:0:0:ffff:d10f:4811
209.15.72.18 0:0:0:0:0:ffff:d10f:4812
209.15.72.19 0:0:0:0:0:ffff:d10f:4813
209.15.72.20 0:0:0:0:0:ffff:d10f:4814
209.15.72.21 0:0:0:0:0:ffff:d10f:4815
209.15.72.22 0:0:0:0:0:ffff:d10f:4816
209.15.72.23 0:0:0:0:0:ffff:d10f:4817
209.15.72.24 0:0:0:0:0:ffff:d10f:4818
209.15.72.25 0:0:0:0:0:ffff:d10f:4819
209.15.72.26 0:0:0:0:0:ffff:d10f:481a
209.15.72.27 0:0:0:0:0:ffff:d10f:481b
209.15.72.28 0:0:0:0:0:ffff:d10f:481c
209.15.72.29 0:0:0:0:0:ffff:d10f:481d
209.15.72.30 0:0:0:0:0:ffff:d10f:481e
209.15.72.31 0:0:0:0:0:ffff:d10f:481f
209.15.72.32 0:0:0:0:0:ffff:d10f:4820
209.15.72.33 0:0:0:0:0:ffff:d10f:4821
209.15.72.34 0:0:0:0:0:ffff:d10f:4822
209.15.72.35 0:0:0:0:0:ffff:d10f:4823
209.15.72.36 0:0:0:0:0:ffff:d10f:4824
209.15.72.37 0:0:0:0:0:ffff:d10f:4825
209.15.72.38 0:0:0:0:0:ffff:d10f:4826
209.15.72.39 0:0:0:0:0:ffff:d10f:4827
209.15.72.40 0:0:0:0:0:ffff:d10f:4828
209.15.72.41 0:0:0:0:0:ffff:d10f:4829
209.15.72.42 0:0:0:0:0:ffff:d10f:482a
209.15.72.43 0:0:0:0:0:ffff:d10f:482b
209.15.72.44 0:0:0:0:0:ffff:d10f:482c
209.15.72.45 0:0:0:0:0:ffff:d10f:482d
209.15.72.46 0:0:0:0:0:ffff:d10f:482e
209.15.72.47 0:0:0:0:0:ffff:d10f:482f
209.15.72.48 0:0:0:0:0:ffff:d10f:4830
209.15.72.49 0:0:0:0:0:ffff:d10f:4831
209.15.72.50 0:0:0:0:0:ffff:d10f:4832
209.15.72.51 0:0:0:0:0:ffff:d10f:4833
209.15.72.52 0:0:0:0:0:ffff:d10f:4834
209.15.72.53 0:0:0:0:0:ffff:d10f:4835
209.15.72.54 0:0:0:0:0:ffff:d10f:4836
209.15.72.55 0:0:0:0:0:ffff:d10f:4837
209.15.72.56 0:0:0:0:0:ffff:d10f:4838
209.15.72.57 0:0:0:0:0:ffff:d10f:4839
209.15.72.58 0:0:0:0:0:ffff:d10f:483a
209.15.72.59 0:0:0:0:0:ffff:d10f:483b
209.15.72.60 0:0:0:0:0:ffff:d10f:483c


209.15.72.61 0:0:0:0:0:ffff:d10f:483d
209.15.72.62 0:0:0:0:0:ffff:d10f:483e
209.15.72.63 0:0:0:0:0:ffff:d10f:483f
209.15.72.64 0:0:0:0:0:ffff:d10f:4840
209.15.72.65 0:0:0:0:0:ffff:d10f:4841
209.15.72.66 0:0:0:0:0:ffff:d10f:4842
209.15.72.67 0:0:0:0:0:ffff:d10f:4843
209.15.72.68 0:0:0:0:0:ffff:d10f:4844
209.15.72.69 0:0:0:0:0:ffff:d10f:4845
209.15.72.70 0:0:0:0:0:ffff:d10f:4846
209.15.72.71 0:0:0:0:0:ffff:d10f:4847
209.15.72.72 0:0:0:0:0:ffff:d10f:4848
209.15.72.73 0:0:0:0:0:ffff:d10f:4849
209.15.72.74 0:0:0:0:0:ffff:d10f:484a
209.15.72.75 0:0:0:0:0:ffff:d10f:484b
209.15.72.76 0:0:0:0:0:ffff:d10f:484c
209.15.72.77 0:0:0:0:0:ffff:d10f:484d
209.15.72.78 0:0:0:0:0:ffff:d10f:484e
209.15.72.79 0:0:0:0:0:ffff:d10f:484f
209.15.72.80 0:0:0:0:0:ffff:d10f:4850
209.15.72.81 0:0:0:0:0:ffff:d10f:4851
209.15.72.82 0:0:0:0:0:ffff:d10f:4852
209.15.72.83 0:0:0:0:0:ffff:d10f:4853
209.15.72.84 0:0:0:0:0:ffff:d10f:4854
209.15.72.85 0:0:0:0:0:ffff:d10f:4855
209.15.72.86 0:0:0:0:0:ffff:d10f:4856
209.15.72.87 0:0:0:0:0:ffff:d10f:4857
209.15.72.88 0:0:0:0:0:ffff:d10f:4858
209.15.72.89 0:0:0:0:0:ffff:d10f:4859
209.15.72.90 0:0:0:0:0:ffff:d10f:485a
209.15.72.91 0:0:0:0:0:ffff:d10f:485b
209.15.72.92 0:0:0:0:0:ffff:d10f:485c
209.15.72.93 0:0:0:0:0:ffff:d10f:485d
209.15.72.94 0:0:0:0:0:ffff:d10f:485e
209.15.72.95 0:0:0:0:0:ffff:d10f:485f
209.15.72.96 0:0:0:0:0:ffff:d10f:4860
209.15.72.97 0:0:0:0:0:ffff:d10f:4861
209.15.72.98 0:0:0:0:0:ffff:d10f:4862
209.15.72.99 0:0:0:0:0:ffff:d10f:4863
209.15.72.100 0:0:0:0:0:ffff:d10f:4864
209.15.72.101 0:0:0:0:0:ffff:d10f:4865
209.15.72.102 0:0:0:0:0:ffff:d10f:4866
209.15.72.103 0:0:0:0:0:ffff:d10f:4867
209.15.72.104 0:0:0:0:0:ffff:d10f:4868
209.15.72.105 0:0:0:0:0:ffff:d10f:4869
209.15.72.106 0:0:0:0:0:ffff:d10f:486a
209.15.72.107 0:0:0:0:0:ffff:d10f:486b
209.15.72.108 0:0:0:0:0:ffff:d10f:486c
209.15.72.109 0:0:0:0:0:ffff:d10f:486d
209.15.72.110 0:0:0:0:0:ffff:d10f:486e
209.15.72.111 0:0:0:0:0:ffff:d10f:486f
209.15.72.112 0:0:0:0:0:ffff:d10f:4870
209.15.72.113 0:0:0:0:0:ffff:d10f:4871
209.15.72.114 0:0:0:0:0:ffff:d10f:4872
209.15.72.115 0:0:0:0:0:ffff:d10f:4873
209.15.72.116 0:0:0:0:0:ffff:d10f:4874
209.15.72.117 0:0:0:0:0:ffff:d10f:4875
209.15.72.118 0:0:0:0:0:ffff:d10f:4876
209.15.72.119 0:0:0:0:0:ffff:d10f:4877
209.15.72.120 0:0:0:0:0:ffff:d10f:4878


209.15.72.121 0:0:0:0:0:ffff:d10f:4879
209.15.72.122 0:0:0:0:0:ffff:d10f:487a
209.15.72.123 0:0:0:0:0:ffff:d10f:487b
209.15.72.124 0:0:0:0:0:ffff:d10f:487c
209.15.72.125 0:0:0:0:0:ffff:d10f:487d
209.15.72.126 0:0:0:0:0:ffff:d10f:487e
209.15.72.127 0:0:0:0:0:ffff:d10f:487f
209.15.72.128 0:0:0:0:0:ffff:d10f:4880
209.15.72.129 0:0:0:0:0:ffff:d10f:4881
209.15.72.130 0:0:0:0:0:ffff:d10f:4882
209.15.72.131 0:0:0:0:0:ffff:d10f:4883
209.15.72.132 0:0:0:0:0:ffff:d10f:4884
209.15.72.133 0:0:0:0:0:ffff:d10f:4885
209.15.72.134 0:0:0:0:0:ffff:d10f:4886
209.15.72.135 0:0:0:0:0:ffff:d10f:4887
209.15.72.136 0:0:0:0:0:ffff:d10f:4888
209.15.72.137 0:0:0:0:0:ffff:d10f:4889
209.15.72.138 0:0:0:0:0:ffff:d10f:488a
209.15.72.139 0:0:0:0:0:ffff:d10f:488b
209.15.72.140 0:0:0:0:0:ffff:d10f:488c
209.15.72.141 0:0:0:0:0:ffff:d10f:488d
209.15.72.142 0:0:0:0:0:ffff:d10f:488e
209.15.72.143 0:0:0:0:0:ffff:d10f:488f
209.15.72.144 0:0:0:0:0:ffff:d10f:4890
209.15.72.145 0:0:0:0:0:ffff:d10f:4891
209.15.72.146 0:0:0:0:0:ffff:d10f:4892
209.15.72.147 0:0:0:0:0:ffff:d10f:4893
209.15.72.148 0:0:0:0:0:ffff:d10f:4894
209.15.72.149 0:0:0:0:0:ffff:d10f:4895
209.15.72.150 0:0:0:0:0:ffff:d10f:4896
209.15.72.151 0:0:0:0:0:ffff:d10f:4897
209.15.72.152 0:0:0:0:0:ffff:d10f:4898
209.15.72.153 0:0:0:0:0:ffff:d10f:4899
209.15.72.154 0:0:0:0:0:ffff:d10f:489a
209.15.72.155 0:0:0:0:0:ffff:d10f:489b
209.15.72.156 0:0:0:0:0:ffff:d10f:489c
209.15.72.157 0:0:0:0:0:ffff:d10f:489d
209.15.72.158 0:0:0:0:0:ffff:d10f:489e
209.15.72.159 0:0:0:0:0:ffff:d10f:489f
209.15.72.160 0:0:0:0:0:ffff:d10f:48a0
209.15.72.161 0:0:0:0:0:ffff:d10f:48a1
209.15.72.162 0:0:0:0:0:ffff:d10f:48a2
209.15.72.163 0:0:0:0:0:ffff:d10f:48a3
209.15.72.164 0:0:0:0:0:ffff:d10f:48a4
209.15.72.165 0:0:0:0:0:ffff:d10f:48a5
209.15.72.166 0:0:0:0:0:ffff:d10f:48a6
209.15.72.167 0:0:0:0:0:ffff:d10f:48a7
209.15.72.168 0:0:0:0:0:ffff:d10f:48a8
209.15.72.169 0:0:0:0:0:ffff:d10f:48a9
209.15.72.170 0:0:0:0:0:ffff:d10f:48aa
209.15.72.171 0:0:0:0:0:ffff:d10f:48ab
209.15.72.172 0:0:0:0:0:ffff:d10f:48ac
209.15.72.173 0:0:0:0:0:ffff:d10f:48ad
209.15.72.174 0:0:0:0:0:ffff:d10f:48ae
209.15.72.175 0:0:0:0:0:ffff:d10f:48af
209.15.72.176 0:0:0:0:0:ffff:d10f:48b0
209.15.72.177 0:0:0:0:0:ffff:d10f:48b1
209.15.72.178 0:0:0:0:0:ffff:d10f:48b2
209.15.72.179 0:0:0:0:0:ffff:d10f:48b3
209.15.72.180 0:0:0:0:0:ffff:d10f:48b4


209.15.72.181 0:0:0:0:0:ffff:d10f:48b5
209.15.72.182 0:0:0:0:0:ffff:d10f:48b6
209.15.72.183 0:0:0:0:0:ffff:d10f:48b7
209.15.72.184 0:0:0:0:0:ffff:d10f:48b8
209.15.72.185 0:0:0:0:0:ffff:d10f:48b9
209.15.72.186 0:0:0:0:0:ffff:d10f:48ba
209.15.72.187 0:0:0:0:0:ffff:d10f:48bb
209.15.72.188 0:0:0:0:0:ffff:d10f:48bc
209.15.72.189 0:0:0:0:0:ffff:d10f:48bd
209.15.72.190 0:0:0:0:0:ffff:d10f:48be
209.15.72.191 0:0:0:0:0:ffff:d10f:48bf
209.15.72.192 0:0:0:0:0:ffff:d10f:48c0
209.15.72.193 0:0:0:0:0:ffff:d10f:48c1
209.15.72.194 0:0:0:0:0:ffff:d10f:48c2
209.15.72.195 0:0:0:0:0:ffff:d10f:48c3
209.15.72.196 0:0:0:0:0:ffff:d10f:48c4
209.15.72.197 0:0:0:0:0:ffff:d10f:48c5
209.15.72.198 0:0:0:0:0:ffff:d10f:48c6
209.15.72.199 0:0:0:0:0:ffff:d10f:48c7
209.15.72.200 0:0:0:0:0:ffff:d10f:48c8
209.15.72.201 0:0:0:0:0:ffff:d10f:48c9
209.15.72.202 0:0:0:0:0:ffff:d10f:48ca
209.15.72.203 0:0:0:0:0:ffff:d10f:48cb
209.15.72.204 0:0:0:0:0:ffff:d10f:48cc
209.15.72.205 0:0:0:0:0:ffff:d10f:48cd
209.15.72.206 0:0:0:0:0:ffff:d10f:48ce
209.15.72.207 0:0:0:0:0:ffff:d10f:48cf
209.15.72.208 0:0:0:0:0:ffff:d10f:48d0
209.15.72.209 0:0:0:0:0:ffff:d10f:48d1
209.15.72.210 0:0:0:0:0:ffff:d10f:48d2
209.15.72.211 0:0:0:0:0:ffff:d10f:48d3
209.15.72.212 0:0:0:0:0:ffff:d10f:48d4
209.15.72.213 0:0:0:0:0:ffff:d10f:48d5
209.15.72.214 0:0:0:0:0:ffff:d10f:48d6
209.15.72.215 0:0:0:0:0:ffff:d10f:48d7
209.15.72.216 0:0:0:0:0:ffff:d10f:48d8
209.15.72.217 0:0:0:0:0:ffff:d10f:48d9
209.15.72.218 0:0:0:0:0:ffff:d10f:48da
209.15.72.219 0:0:0:0:0:ffff:d10f:48db
209.15.72.220 0:0:0:0:0:ffff:d10f:48dc
209.15.72.221 0:0:0:0:0:ffff:d10f:48dd
209.15.72.222 0:0:0:0:0:ffff:d10f:48de
209.15.72.223 0:0:0:0:0:ffff:d10f:48df
209.15.72.224 0:0:0:0:0:ffff:d10f:48e0
209.15.72.225 0:0:0:0:0:ffff:d10f:48e1
209.15.72.226 0:0:0:0:0:ffff:d10f:48e2
209.15.72.227 0:0:0:0:0:ffff:d10f:48e3
209.15.72.228 0:0:0:0:0:ffff:d10f:48e4
209.15.72.229 0:0:0:0:0:ffff:d10f:48e5
209.15.72.230 0:0:0:0:0:ffff:d10f:48e6
209.15.72.231 0:0:0:0:0:ffff:d10f:48e7
209.15.72.232 0:0:0:0:0:ffff:d10f:48e8
209.15.72.233 0:0:0:0:0:ffff:d10f:48e9
209.15.72.234 0:0:0:0:0:ffff:d10f:48ea
209.15.72.235 0:0:0:0:0:ffff:d10f:48eb
209.15.72.236 0:0:0:0:0:ffff:d10f:48ec
209.15.72.237 0:0:0:0:0:ffff:d10f:48ed
209.15.72.238 0:0:0:0:0:ffff:d10f:48ee
209.15.72.239 0:0:0:0:0:ffff:d10f:48ef
209.15.72.240 0:0:0:0:0:ffff:d10f:48f0
209.15.72.241 0:0:0:0:0:ffff:d10f:48f1
209.15.72.242 0:0:0:0:0:ffff:d10f:48f2
209.15.72.243 0:0:0:0:0:ffff:d10f:48f3
209.15.72.244 0:0:0:0:0:ffff:d10f:48f4
209.15.72.245 0:0:0:0:0:ffff:d10f:48f5
209.15.72.246 0:0:0:0:0:ffff:d10f:48f6
209.15.72.247 0:0:0:0:0:ffff:d10f:48f7
209.15.72.248 0:0:0:0:0:ffff:d10f:48f8
209.15.72.249 0:0:0:0:0:ffff:d10f:48f9
209.15.72.250 0:0:0:0:0:ffff:d10f:48fa
209.15.72.251 0:0:0:0:0:ffff:d10f:48fb
209.15.72.252 0:0:0:0:0:ffff:d10f:48fc
209.15.72.253 0:0:0:0:0:ffff:d10f:48fd
209.15.72.254 0:0:0:0:0:ffff:d10f:48fe
209.15.72.255 0:0:0:0:0:ffff:d10f: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.