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
15.1.72.1 0:0:0:0:0:ffff:f01:4801
15.1.72.2 0:0:0:0:0:ffff:f01:4802
15.1.72.3 0:0:0:0:0:ffff:f01:4803
15.1.72.4 0:0:0:0:0:ffff:f01:4804
15.1.72.5 0:0:0:0:0:ffff:f01:4805
15.1.72.6 0:0:0:0:0:ffff:f01:4806
15.1.72.7 0:0:0:0:0:ffff:f01:4807
15.1.72.8 0:0:0:0:0:ffff:f01:4808
15.1.72.9 0:0:0:0:0:ffff:f01:4809
15.1.72.10 0:0:0:0:0:ffff:f01:480a
15.1.72.11 0:0:0:0:0:ffff:f01:480b
15.1.72.12 0:0:0:0:0:ffff:f01:480c
15.1.72.13 0:0:0:0:0:ffff:f01:480d
15.1.72.14 0:0:0:0:0:ffff:f01:480e
15.1.72.15 0:0:0:0:0:ffff:f01:480f
15.1.72.16 0:0:0:0:0:ffff:f01:4810
15.1.72.17 0:0:0:0:0:ffff:f01:4811
15.1.72.18 0:0:0:0:0:ffff:f01:4812
15.1.72.19 0:0:0:0:0:ffff:f01:4813
15.1.72.20 0:0:0:0:0:ffff:f01:4814
15.1.72.21 0:0:0:0:0:ffff:f01:4815
15.1.72.22 0:0:0:0:0:ffff:f01:4816
15.1.72.23 0:0:0:0:0:ffff:f01:4817
15.1.72.24 0:0:0:0:0:ffff:f01:4818
15.1.72.25 0:0:0:0:0:ffff:f01:4819
15.1.72.26 0:0:0:0:0:ffff:f01:481a
15.1.72.27 0:0:0:0:0:ffff:f01:481b
15.1.72.28 0:0:0:0:0:ffff:f01:481c
15.1.72.29 0:0:0:0:0:ffff:f01:481d
15.1.72.30 0:0:0:0:0:ffff:f01:481e
15.1.72.31 0:0:0:0:0:ffff:f01:481f
15.1.72.32 0:0:0:0:0:ffff:f01:4820
15.1.72.33 0:0:0:0:0:ffff:f01:4821
15.1.72.34 0:0:0:0:0:ffff:f01:4822
15.1.72.35 0:0:0:0:0:ffff:f01:4823
15.1.72.36 0:0:0:0:0:ffff:f01:4824
15.1.72.37 0:0:0:0:0:ffff:f01:4825
15.1.72.38 0:0:0:0:0:ffff:f01:4826
15.1.72.39 0:0:0:0:0:ffff:f01:4827
15.1.72.40 0:0:0:0:0:ffff:f01:4828
15.1.72.41 0:0:0:0:0:ffff:f01:4829
15.1.72.42 0:0:0:0:0:ffff:f01:482a
15.1.72.43 0:0:0:0:0:ffff:f01:482b
15.1.72.44 0:0:0:0:0:ffff:f01:482c
15.1.72.45 0:0:0:0:0:ffff:f01:482d
15.1.72.46 0:0:0:0:0:ffff:f01:482e
15.1.72.47 0:0:0:0:0:ffff:f01:482f
15.1.72.48 0:0:0:0:0:ffff:f01:4830
15.1.72.49 0:0:0:0:0:ffff:f01:4831
15.1.72.50 0:0:0:0:0:ffff:f01:4832
15.1.72.51 0:0:0:0:0:ffff:f01:4833
15.1.72.52 0:0:0:0:0:ffff:f01:4834
15.1.72.53 0:0:0:0:0:ffff:f01:4835
15.1.72.54 0:0:0:0:0:ffff:f01:4836
15.1.72.55 0:0:0:0:0:ffff:f01:4837
15.1.72.56 0:0:0:0:0:ffff:f01:4838
15.1.72.57 0:0:0:0:0:ffff:f01:4839
15.1.72.58 0:0:0:0:0:ffff:f01:483a
15.1.72.59 0:0:0:0:0:ffff:f01:483b
15.1.72.60 0:0:0:0:0:ffff:f01:483c


15.1.72.61 0:0:0:0:0:ffff:f01:483d
15.1.72.62 0:0:0:0:0:ffff:f01:483e
15.1.72.63 0:0:0:0:0:ffff:f01:483f
15.1.72.64 0:0:0:0:0:ffff:f01:4840
15.1.72.65 0:0:0:0:0:ffff:f01:4841
15.1.72.66 0:0:0:0:0:ffff:f01:4842
15.1.72.67 0:0:0:0:0:ffff:f01:4843
15.1.72.68 0:0:0:0:0:ffff:f01:4844
15.1.72.69 0:0:0:0:0:ffff:f01:4845
15.1.72.70 0:0:0:0:0:ffff:f01:4846
15.1.72.71 0:0:0:0:0:ffff:f01:4847
15.1.72.72 0:0:0:0:0:ffff:f01:4848
15.1.72.73 0:0:0:0:0:ffff:f01:4849
15.1.72.74 0:0:0:0:0:ffff:f01:484a
15.1.72.75 0:0:0:0:0:ffff:f01:484b
15.1.72.76 0:0:0:0:0:ffff:f01:484c
15.1.72.77 0:0:0:0:0:ffff:f01:484d
15.1.72.78 0:0:0:0:0:ffff:f01:484e
15.1.72.79 0:0:0:0:0:ffff:f01:484f
15.1.72.80 0:0:0:0:0:ffff:f01:4850
15.1.72.81 0:0:0:0:0:ffff:f01:4851
15.1.72.82 0:0:0:0:0:ffff:f01:4852
15.1.72.83 0:0:0:0:0:ffff:f01:4853
15.1.72.84 0:0:0:0:0:ffff:f01:4854
15.1.72.85 0:0:0:0:0:ffff:f01:4855
15.1.72.86 0:0:0:0:0:ffff:f01:4856
15.1.72.87 0:0:0:0:0:ffff:f01:4857
15.1.72.88 0:0:0:0:0:ffff:f01:4858
15.1.72.89 0:0:0:0:0:ffff:f01:4859
15.1.72.90 0:0:0:0:0:ffff:f01:485a
15.1.72.91 0:0:0:0:0:ffff:f01:485b
15.1.72.92 0:0:0:0:0:ffff:f01:485c
15.1.72.93 0:0:0:0:0:ffff:f01:485d
15.1.72.94 0:0:0:0:0:ffff:f01:485e
15.1.72.95 0:0:0:0:0:ffff:f01:485f
15.1.72.96 0:0:0:0:0:ffff:f01:4860
15.1.72.97 0:0:0:0:0:ffff:f01:4861
15.1.72.98 0:0:0:0:0:ffff:f01:4862
15.1.72.99 0:0:0:0:0:ffff:f01:4863
15.1.72.100 0:0:0:0:0:ffff:f01:4864
15.1.72.101 0:0:0:0:0:ffff:f01:4865
15.1.72.102 0:0:0:0:0:ffff:f01:4866
15.1.72.103 0:0:0:0:0:ffff:f01:4867
15.1.72.104 0:0:0:0:0:ffff:f01:4868
15.1.72.105 0:0:0:0:0:ffff:f01:4869
15.1.72.106 0:0:0:0:0:ffff:f01:486a
15.1.72.107 0:0:0:0:0:ffff:f01:486b
15.1.72.108 0:0:0:0:0:ffff:f01:486c
15.1.72.109 0:0:0:0:0:ffff:f01:486d
15.1.72.110 0:0:0:0:0:ffff:f01:486e
15.1.72.111 0:0:0:0:0:ffff:f01:486f
15.1.72.112 0:0:0:0:0:ffff:f01:4870
15.1.72.113 0:0:0:0:0:ffff:f01:4871
15.1.72.114 0:0:0:0:0:ffff:f01:4872
15.1.72.115 0:0:0:0:0:ffff:f01:4873
15.1.72.116 0:0:0:0:0:ffff:f01:4874
15.1.72.117 0:0:0:0:0:ffff:f01:4875
15.1.72.118 0:0:0:0:0:ffff:f01:4876
15.1.72.119 0:0:0:0:0:ffff:f01:4877
15.1.72.120 0:0:0:0:0:ffff:f01:4878


15.1.72.121 0:0:0:0:0:ffff:f01:4879
15.1.72.122 0:0:0:0:0:ffff:f01:487a
15.1.72.123 0:0:0:0:0:ffff:f01:487b
15.1.72.124 0:0:0:0:0:ffff:f01:487c
15.1.72.125 0:0:0:0:0:ffff:f01:487d
15.1.72.126 0:0:0:0:0:ffff:f01:487e
15.1.72.127 0:0:0:0:0:ffff:f01:487f
15.1.72.128 0:0:0:0:0:ffff:f01:4880
15.1.72.129 0:0:0:0:0:ffff:f01:4881
15.1.72.130 0:0:0:0:0:ffff:f01:4882
15.1.72.131 0:0:0:0:0:ffff:f01:4883
15.1.72.132 0:0:0:0:0:ffff:f01:4884
15.1.72.133 0:0:0:0:0:ffff:f01:4885
15.1.72.134 0:0:0:0:0:ffff:f01:4886
15.1.72.135 0:0:0:0:0:ffff:f01:4887
15.1.72.136 0:0:0:0:0:ffff:f01:4888
15.1.72.137 0:0:0:0:0:ffff:f01:4889
15.1.72.138 0:0:0:0:0:ffff:f01:488a
15.1.72.139 0:0:0:0:0:ffff:f01:488b
15.1.72.140 0:0:0:0:0:ffff:f01:488c
15.1.72.141 0:0:0:0:0:ffff:f01:488d
15.1.72.142 0:0:0:0:0:ffff:f01:488e
15.1.72.143 0:0:0:0:0:ffff:f01:488f
15.1.72.144 0:0:0:0:0:ffff:f01:4890
15.1.72.145 0:0:0:0:0:ffff:f01:4891
15.1.72.146 0:0:0:0:0:ffff:f01:4892
15.1.72.147 0:0:0:0:0:ffff:f01:4893
15.1.72.148 0:0:0:0:0:ffff:f01:4894
15.1.72.149 0:0:0:0:0:ffff:f01:4895
15.1.72.150 0:0:0:0:0:ffff:f01:4896
15.1.72.151 0:0:0:0:0:ffff:f01:4897
15.1.72.152 0:0:0:0:0:ffff:f01:4898
15.1.72.153 0:0:0:0:0:ffff:f01:4899
15.1.72.154 0:0:0:0:0:ffff:f01:489a
15.1.72.155 0:0:0:0:0:ffff:f01:489b
15.1.72.156 0:0:0:0:0:ffff:f01:489c
15.1.72.157 0:0:0:0:0:ffff:f01:489d
15.1.72.158 0:0:0:0:0:ffff:f01:489e
15.1.72.159 0:0:0:0:0:ffff:f01:489f
15.1.72.160 0:0:0:0:0:ffff:f01:48a0
15.1.72.161 0:0:0:0:0:ffff:f01:48a1
15.1.72.162 0:0:0:0:0:ffff:f01:48a2
15.1.72.163 0:0:0:0:0:ffff:f01:48a3
15.1.72.164 0:0:0:0:0:ffff:f01:48a4
15.1.72.165 0:0:0:0:0:ffff:f01:48a5
15.1.72.166 0:0:0:0:0:ffff:f01:48a6
15.1.72.167 0:0:0:0:0:ffff:f01:48a7
15.1.72.168 0:0:0:0:0:ffff:f01:48a8
15.1.72.169 0:0:0:0:0:ffff:f01:48a9
15.1.72.170 0:0:0:0:0:ffff:f01:48aa
15.1.72.171 0:0:0:0:0:ffff:f01:48ab
15.1.72.172 0:0:0:0:0:ffff:f01:48ac
15.1.72.173 0:0:0:0:0:ffff:f01:48ad
15.1.72.174 0:0:0:0:0:ffff:f01:48ae
15.1.72.175 0:0:0:0:0:ffff:f01:48af
15.1.72.176 0:0:0:0:0:ffff:f01:48b0
15.1.72.177 0:0:0:0:0:ffff:f01:48b1
15.1.72.178 0:0:0:0:0:ffff:f01:48b2
15.1.72.179 0:0:0:0:0:ffff:f01:48b3
15.1.72.180 0:0:0:0:0:ffff:f01:48b4


15.1.72.181 0:0:0:0:0:ffff:f01:48b5
15.1.72.182 0:0:0:0:0:ffff:f01:48b6
15.1.72.183 0:0:0:0:0:ffff:f01:48b7
15.1.72.184 0:0:0:0:0:ffff:f01:48b8
15.1.72.185 0:0:0:0:0:ffff:f01:48b9
15.1.72.186 0:0:0:0:0:ffff:f01:48ba
15.1.72.187 0:0:0:0:0:ffff:f01:48bb
15.1.72.188 0:0:0:0:0:ffff:f01:48bc
15.1.72.189 0:0:0:0:0:ffff:f01:48bd
15.1.72.190 0:0:0:0:0:ffff:f01:48be
15.1.72.191 0:0:0:0:0:ffff:f01:48bf
15.1.72.192 0:0:0:0:0:ffff:f01:48c0
15.1.72.193 0:0:0:0:0:ffff:f01:48c1
15.1.72.194 0:0:0:0:0:ffff:f01:48c2
15.1.72.195 0:0:0:0:0:ffff:f01:48c3
15.1.72.196 0:0:0:0:0:ffff:f01:48c4
15.1.72.197 0:0:0:0:0:ffff:f01:48c5
15.1.72.198 0:0:0:0:0:ffff:f01:48c6
15.1.72.199 0:0:0:0:0:ffff:f01:48c7
15.1.72.200 0:0:0:0:0:ffff:f01:48c8
15.1.72.201 0:0:0:0:0:ffff:f01:48c9
15.1.72.202 0:0:0:0:0:ffff:f01:48ca
15.1.72.203 0:0:0:0:0:ffff:f01:48cb
15.1.72.204 0:0:0:0:0:ffff:f01:48cc
15.1.72.205 0:0:0:0:0:ffff:f01:48cd
15.1.72.206 0:0:0:0:0:ffff:f01:48ce
15.1.72.207 0:0:0:0:0:ffff:f01:48cf
15.1.72.208 0:0:0:0:0:ffff:f01:48d0
15.1.72.209 0:0:0:0:0:ffff:f01:48d1
15.1.72.210 0:0:0:0:0:ffff:f01:48d2
15.1.72.211 0:0:0:0:0:ffff:f01:48d3
15.1.72.212 0:0:0:0:0:ffff:f01:48d4
15.1.72.213 0:0:0:0:0:ffff:f01:48d5
15.1.72.214 0:0:0:0:0:ffff:f01:48d6
15.1.72.215 0:0:0:0:0:ffff:f01:48d7
15.1.72.216 0:0:0:0:0:ffff:f01:48d8
15.1.72.217 0:0:0:0:0:ffff:f01:48d9
15.1.72.218 0:0:0:0:0:ffff:f01:48da
15.1.72.219 0:0:0:0:0:ffff:f01:48db
15.1.72.220 0:0:0:0:0:ffff:f01:48dc
15.1.72.221 0:0:0:0:0:ffff:f01:48dd
15.1.72.222 0:0:0:0:0:ffff:f01:48de
15.1.72.223 0:0:0:0:0:ffff:f01:48df
15.1.72.224 0:0:0:0:0:ffff:f01:48e0
15.1.72.225 0:0:0:0:0:ffff:f01:48e1
15.1.72.226 0:0:0:0:0:ffff:f01:48e2
15.1.72.227 0:0:0:0:0:ffff:f01:48e3
15.1.72.228 0:0:0:0:0:ffff:f01:48e4
15.1.72.229 0:0:0:0:0:ffff:f01:48e5
15.1.72.230 0:0:0:0:0:ffff:f01:48e6
15.1.72.231 0:0:0:0:0:ffff:f01:48e7
15.1.72.232 0:0:0:0:0:ffff:f01:48e8
15.1.72.233 0:0:0:0:0:ffff:f01:48e9
15.1.72.234 0:0:0:0:0:ffff:f01:48ea
15.1.72.235 0:0:0:0:0:ffff:f01:48eb
15.1.72.236 0:0:0:0:0:ffff:f01:48ec
15.1.72.237 0:0:0:0:0:ffff:f01:48ed
15.1.72.238 0:0:0:0:0:ffff:f01:48ee
15.1.72.239 0:0:0:0:0:ffff:f01:48ef
15.1.72.240 0:0:0:0:0:ffff:f01:48f0
15.1.72.241 0:0:0:0:0:ffff:f01:48f1
15.1.72.242 0:0:0:0:0:ffff:f01:48f2
15.1.72.243 0:0:0:0:0:ffff:f01:48f3
15.1.72.244 0:0:0:0:0:ffff:f01:48f4
15.1.72.245 0:0:0:0:0:ffff:f01:48f5
15.1.72.246 0:0:0:0:0:ffff:f01:48f6
15.1.72.247 0:0:0:0:0:ffff:f01:48f7
15.1.72.248 0:0:0:0:0:ffff:f01:48f8
15.1.72.249 0:0:0:0:0:ffff:f01:48f9
15.1.72.250 0:0:0:0:0:ffff:f01:48fa
15.1.72.251 0:0:0:0:0:ffff:f01:48fb
15.1.72.252 0:0:0:0:0:ffff:f01:48fc
15.1.72.253 0:0:0:0:0:ffff:f01:48fd
15.1.72.254 0:0:0:0:0:ffff:f01:48fe
15.1.72.255 0:0:0:0:0:ffff:f01:48ff


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.