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
128.75.72.1 0:0:0:0:0:ffff:804b:4801
128.75.72.2 0:0:0:0:0:ffff:804b:4802
128.75.72.3 0:0:0:0:0:ffff:804b:4803
128.75.72.4 0:0:0:0:0:ffff:804b:4804
128.75.72.5 0:0:0:0:0:ffff:804b:4805
128.75.72.6 0:0:0:0:0:ffff:804b:4806
128.75.72.7 0:0:0:0:0:ffff:804b:4807
128.75.72.8 0:0:0:0:0:ffff:804b:4808
128.75.72.9 0:0:0:0:0:ffff:804b:4809
128.75.72.10 0:0:0:0:0:ffff:804b:480a
128.75.72.11 0:0:0:0:0:ffff:804b:480b
128.75.72.12 0:0:0:0:0:ffff:804b:480c
128.75.72.13 0:0:0:0:0:ffff:804b:480d
128.75.72.14 0:0:0:0:0:ffff:804b:480e
128.75.72.15 0:0:0:0:0:ffff:804b:480f
128.75.72.16 0:0:0:0:0:ffff:804b:4810
128.75.72.17 0:0:0:0:0:ffff:804b:4811
128.75.72.18 0:0:0:0:0:ffff:804b:4812
128.75.72.19 0:0:0:0:0:ffff:804b:4813
128.75.72.20 0:0:0:0:0:ffff:804b:4814
128.75.72.21 0:0:0:0:0:ffff:804b:4815
128.75.72.22 0:0:0:0:0:ffff:804b:4816
128.75.72.23 0:0:0:0:0:ffff:804b:4817
128.75.72.24 0:0:0:0:0:ffff:804b:4818
128.75.72.25 0:0:0:0:0:ffff:804b:4819
128.75.72.26 0:0:0:0:0:ffff:804b:481a
128.75.72.27 0:0:0:0:0:ffff:804b:481b
128.75.72.28 0:0:0:0:0:ffff:804b:481c
128.75.72.29 0:0:0:0:0:ffff:804b:481d
128.75.72.30 0:0:0:0:0:ffff:804b:481e
128.75.72.31 0:0:0:0:0:ffff:804b:481f
128.75.72.32 0:0:0:0:0:ffff:804b:4820
128.75.72.33 0:0:0:0:0:ffff:804b:4821
128.75.72.34 0:0:0:0:0:ffff:804b:4822
128.75.72.35 0:0:0:0:0:ffff:804b:4823
128.75.72.36 0:0:0:0:0:ffff:804b:4824
128.75.72.37 0:0:0:0:0:ffff:804b:4825
128.75.72.38 0:0:0:0:0:ffff:804b:4826
128.75.72.39 0:0:0:0:0:ffff:804b:4827
128.75.72.40 0:0:0:0:0:ffff:804b:4828
128.75.72.41 0:0:0:0:0:ffff:804b:4829
128.75.72.42 0:0:0:0:0:ffff:804b:482a
128.75.72.43 0:0:0:0:0:ffff:804b:482b
128.75.72.44 0:0:0:0:0:ffff:804b:482c
128.75.72.45 0:0:0:0:0:ffff:804b:482d
128.75.72.46 0:0:0:0:0:ffff:804b:482e
128.75.72.47 0:0:0:0:0:ffff:804b:482f
128.75.72.48 0:0:0:0:0:ffff:804b:4830
128.75.72.49 0:0:0:0:0:ffff:804b:4831
128.75.72.50 0:0:0:0:0:ffff:804b:4832
128.75.72.51 0:0:0:0:0:ffff:804b:4833
128.75.72.52 0:0:0:0:0:ffff:804b:4834
128.75.72.53 0:0:0:0:0:ffff:804b:4835
128.75.72.54 0:0:0:0:0:ffff:804b:4836
128.75.72.55 0:0:0:0:0:ffff:804b:4837
128.75.72.56 0:0:0:0:0:ffff:804b:4838
128.75.72.57 0:0:0:0:0:ffff:804b:4839
128.75.72.58 0:0:0:0:0:ffff:804b:483a
128.75.72.59 0:0:0:0:0:ffff:804b:483b
128.75.72.60 0:0:0:0:0:ffff:804b:483c


128.75.72.61 0:0:0:0:0:ffff:804b:483d
128.75.72.62 0:0:0:0:0:ffff:804b:483e
128.75.72.63 0:0:0:0:0:ffff:804b:483f
128.75.72.64 0:0:0:0:0:ffff:804b:4840
128.75.72.65 0:0:0:0:0:ffff:804b:4841
128.75.72.66 0:0:0:0:0:ffff:804b:4842
128.75.72.67 0:0:0:0:0:ffff:804b:4843
128.75.72.68 0:0:0:0:0:ffff:804b:4844
128.75.72.69 0:0:0:0:0:ffff:804b:4845
128.75.72.70 0:0:0:0:0:ffff:804b:4846
128.75.72.71 0:0:0:0:0:ffff:804b:4847
128.75.72.72 0:0:0:0:0:ffff:804b:4848
128.75.72.73 0:0:0:0:0:ffff:804b:4849
128.75.72.74 0:0:0:0:0:ffff:804b:484a
128.75.72.75 0:0:0:0:0:ffff:804b:484b
128.75.72.76 0:0:0:0:0:ffff:804b:484c
128.75.72.77 0:0:0:0:0:ffff:804b:484d
128.75.72.78 0:0:0:0:0:ffff:804b:484e
128.75.72.79 0:0:0:0:0:ffff:804b:484f
128.75.72.80 0:0:0:0:0:ffff:804b:4850
128.75.72.81 0:0:0:0:0:ffff:804b:4851
128.75.72.82 0:0:0:0:0:ffff:804b:4852
128.75.72.83 0:0:0:0:0:ffff:804b:4853
128.75.72.84 0:0:0:0:0:ffff:804b:4854
128.75.72.85 0:0:0:0:0:ffff:804b:4855
128.75.72.86 0:0:0:0:0:ffff:804b:4856
128.75.72.87 0:0:0:0:0:ffff:804b:4857
128.75.72.88 0:0:0:0:0:ffff:804b:4858
128.75.72.89 0:0:0:0:0:ffff:804b:4859
128.75.72.90 0:0:0:0:0:ffff:804b:485a
128.75.72.91 0:0:0:0:0:ffff:804b:485b
128.75.72.92 0:0:0:0:0:ffff:804b:485c
128.75.72.93 0:0:0:0:0:ffff:804b:485d
128.75.72.94 0:0:0:0:0:ffff:804b:485e
128.75.72.95 0:0:0:0:0:ffff:804b:485f
128.75.72.96 0:0:0:0:0:ffff:804b:4860
128.75.72.97 0:0:0:0:0:ffff:804b:4861
128.75.72.98 0:0:0:0:0:ffff:804b:4862
128.75.72.99 0:0:0:0:0:ffff:804b:4863
128.75.72.100 0:0:0:0:0:ffff:804b:4864
128.75.72.101 0:0:0:0:0:ffff:804b:4865
128.75.72.102 0:0:0:0:0:ffff:804b:4866
128.75.72.103 0:0:0:0:0:ffff:804b:4867
128.75.72.104 0:0:0:0:0:ffff:804b:4868
128.75.72.105 0:0:0:0:0:ffff:804b:4869
128.75.72.106 0:0:0:0:0:ffff:804b:486a
128.75.72.107 0:0:0:0:0:ffff:804b:486b
128.75.72.108 0:0:0:0:0:ffff:804b:486c
128.75.72.109 0:0:0:0:0:ffff:804b:486d
128.75.72.110 0:0:0:0:0:ffff:804b:486e
128.75.72.111 0:0:0:0:0:ffff:804b:486f
128.75.72.112 0:0:0:0:0:ffff:804b:4870
128.75.72.113 0:0:0:0:0:ffff:804b:4871
128.75.72.114 0:0:0:0:0:ffff:804b:4872
128.75.72.115 0:0:0:0:0:ffff:804b:4873
128.75.72.116 0:0:0:0:0:ffff:804b:4874
128.75.72.117 0:0:0:0:0:ffff:804b:4875
128.75.72.118 0:0:0:0:0:ffff:804b:4876
128.75.72.119 0:0:0:0:0:ffff:804b:4877
128.75.72.120 0:0:0:0:0:ffff:804b:4878


128.75.72.121 0:0:0:0:0:ffff:804b:4879
128.75.72.122 0:0:0:0:0:ffff:804b:487a
128.75.72.123 0:0:0:0:0:ffff:804b:487b
128.75.72.124 0:0:0:0:0:ffff:804b:487c
128.75.72.125 0:0:0:0:0:ffff:804b:487d
128.75.72.126 0:0:0:0:0:ffff:804b:487e
128.75.72.127 0:0:0:0:0:ffff:804b:487f
128.75.72.128 0:0:0:0:0:ffff:804b:4880
128.75.72.129 0:0:0:0:0:ffff:804b:4881
128.75.72.130 0:0:0:0:0:ffff:804b:4882
128.75.72.131 0:0:0:0:0:ffff:804b:4883
128.75.72.132 0:0:0:0:0:ffff:804b:4884
128.75.72.133 0:0:0:0:0:ffff:804b:4885
128.75.72.134 0:0:0:0:0:ffff:804b:4886
128.75.72.135 0:0:0:0:0:ffff:804b:4887
128.75.72.136 0:0:0:0:0:ffff:804b:4888
128.75.72.137 0:0:0:0:0:ffff:804b:4889
128.75.72.138 0:0:0:0:0:ffff:804b:488a
128.75.72.139 0:0:0:0:0:ffff:804b:488b
128.75.72.140 0:0:0:0:0:ffff:804b:488c
128.75.72.141 0:0:0:0:0:ffff:804b:488d
128.75.72.142 0:0:0:0:0:ffff:804b:488e
128.75.72.143 0:0:0:0:0:ffff:804b:488f
128.75.72.144 0:0:0:0:0:ffff:804b:4890
128.75.72.145 0:0:0:0:0:ffff:804b:4891
128.75.72.146 0:0:0:0:0:ffff:804b:4892
128.75.72.147 0:0:0:0:0:ffff:804b:4893
128.75.72.148 0:0:0:0:0:ffff:804b:4894
128.75.72.149 0:0:0:0:0:ffff:804b:4895
128.75.72.150 0:0:0:0:0:ffff:804b:4896
128.75.72.151 0:0:0:0:0:ffff:804b:4897
128.75.72.152 0:0:0:0:0:ffff:804b:4898
128.75.72.153 0:0:0:0:0:ffff:804b:4899
128.75.72.154 0:0:0:0:0:ffff:804b:489a
128.75.72.155 0:0:0:0:0:ffff:804b:489b
128.75.72.156 0:0:0:0:0:ffff:804b:489c
128.75.72.157 0:0:0:0:0:ffff:804b:489d
128.75.72.158 0:0:0:0:0:ffff:804b:489e
128.75.72.159 0:0:0:0:0:ffff:804b:489f
128.75.72.160 0:0:0:0:0:ffff:804b:48a0
128.75.72.161 0:0:0:0:0:ffff:804b:48a1
128.75.72.162 0:0:0:0:0:ffff:804b:48a2
128.75.72.163 0:0:0:0:0:ffff:804b:48a3
128.75.72.164 0:0:0:0:0:ffff:804b:48a4
128.75.72.165 0:0:0:0:0:ffff:804b:48a5
128.75.72.166 0:0:0:0:0:ffff:804b:48a6
128.75.72.167 0:0:0:0:0:ffff:804b:48a7
128.75.72.168 0:0:0:0:0:ffff:804b:48a8
128.75.72.169 0:0:0:0:0:ffff:804b:48a9
128.75.72.170 0:0:0:0:0:ffff:804b:48aa
128.75.72.171 0:0:0:0:0:ffff:804b:48ab
128.75.72.172 0:0:0:0:0:ffff:804b:48ac
128.75.72.173 0:0:0:0:0:ffff:804b:48ad
128.75.72.174 0:0:0:0:0:ffff:804b:48ae
128.75.72.175 0:0:0:0:0:ffff:804b:48af
128.75.72.176 0:0:0:0:0:ffff:804b:48b0
128.75.72.177 0:0:0:0:0:ffff:804b:48b1
128.75.72.178 0:0:0:0:0:ffff:804b:48b2
128.75.72.179 0:0:0:0:0:ffff:804b:48b3
128.75.72.180 0:0:0:0:0:ffff:804b:48b4


128.75.72.181 0:0:0:0:0:ffff:804b:48b5
128.75.72.182 0:0:0:0:0:ffff:804b:48b6
128.75.72.183 0:0:0:0:0:ffff:804b:48b7
128.75.72.184 0:0:0:0:0:ffff:804b:48b8
128.75.72.185 0:0:0:0:0:ffff:804b:48b9
128.75.72.186 0:0:0:0:0:ffff:804b:48ba
128.75.72.187 0:0:0:0:0:ffff:804b:48bb
128.75.72.188 0:0:0:0:0:ffff:804b:48bc
128.75.72.189 0:0:0:0:0:ffff:804b:48bd
128.75.72.190 0:0:0:0:0:ffff:804b:48be
128.75.72.191 0:0:0:0:0:ffff:804b:48bf
128.75.72.192 0:0:0:0:0:ffff:804b:48c0
128.75.72.193 0:0:0:0:0:ffff:804b:48c1
128.75.72.194 0:0:0:0:0:ffff:804b:48c2
128.75.72.195 0:0:0:0:0:ffff:804b:48c3
128.75.72.196 0:0:0:0:0:ffff:804b:48c4
128.75.72.197 0:0:0:0:0:ffff:804b:48c5
128.75.72.198 0:0:0:0:0:ffff:804b:48c6
128.75.72.199 0:0:0:0:0:ffff:804b:48c7
128.75.72.200 0:0:0:0:0:ffff:804b:48c8
128.75.72.201 0:0:0:0:0:ffff:804b:48c9
128.75.72.202 0:0:0:0:0:ffff:804b:48ca
128.75.72.203 0:0:0:0:0:ffff:804b:48cb
128.75.72.204 0:0:0:0:0:ffff:804b:48cc
128.75.72.205 0:0:0:0:0:ffff:804b:48cd
128.75.72.206 0:0:0:0:0:ffff:804b:48ce
128.75.72.207 0:0:0:0:0:ffff:804b:48cf
128.75.72.208 0:0:0:0:0:ffff:804b:48d0
128.75.72.209 0:0:0:0:0:ffff:804b:48d1
128.75.72.210 0:0:0:0:0:ffff:804b:48d2
128.75.72.211 0:0:0:0:0:ffff:804b:48d3
128.75.72.212 0:0:0:0:0:ffff:804b:48d4
128.75.72.213 0:0:0:0:0:ffff:804b:48d5
128.75.72.214 0:0:0:0:0:ffff:804b:48d6
128.75.72.215 0:0:0:0:0:ffff:804b:48d7
128.75.72.216 0:0:0:0:0:ffff:804b:48d8
128.75.72.217 0:0:0:0:0:ffff:804b:48d9
128.75.72.218 0:0:0:0:0:ffff:804b:48da
128.75.72.219 0:0:0:0:0:ffff:804b:48db
128.75.72.220 0:0:0:0:0:ffff:804b:48dc
128.75.72.221 0:0:0:0:0:ffff:804b:48dd
128.75.72.222 0:0:0:0:0:ffff:804b:48de
128.75.72.223 0:0:0:0:0:ffff:804b:48df
128.75.72.224 0:0:0:0:0:ffff:804b:48e0
128.75.72.225 0:0:0:0:0:ffff:804b:48e1
128.75.72.226 0:0:0:0:0:ffff:804b:48e2
128.75.72.227 0:0:0:0:0:ffff:804b:48e3
128.75.72.228 0:0:0:0:0:ffff:804b:48e4
128.75.72.229 0:0:0:0:0:ffff:804b:48e5
128.75.72.230 0:0:0:0:0:ffff:804b:48e6
128.75.72.231 0:0:0:0:0:ffff:804b:48e7
128.75.72.232 0:0:0:0:0:ffff:804b:48e8
128.75.72.233 0:0:0:0:0:ffff:804b:48e9
128.75.72.234 0:0:0:0:0:ffff:804b:48ea
128.75.72.235 0:0:0:0:0:ffff:804b:48eb
128.75.72.236 0:0:0:0:0:ffff:804b:48ec
128.75.72.237 0:0:0:0:0:ffff:804b:48ed
128.75.72.238 0:0:0:0:0:ffff:804b:48ee
128.75.72.239 0:0:0:0:0:ffff:804b:48ef
128.75.72.240 0:0:0:0:0:ffff:804b:48f0
128.75.72.241 0:0:0:0:0:ffff:804b:48f1
128.75.72.242 0:0:0:0:0:ffff:804b:48f2
128.75.72.243 0:0:0:0:0:ffff:804b:48f3
128.75.72.244 0:0:0:0:0:ffff:804b:48f4
128.75.72.245 0:0:0:0:0:ffff:804b:48f5
128.75.72.246 0:0:0:0:0:ffff:804b:48f6
128.75.72.247 0:0:0:0:0:ffff:804b:48f7
128.75.72.248 0:0:0:0:0:ffff:804b:48f8
128.75.72.249 0:0:0:0:0:ffff:804b:48f9
128.75.72.250 0:0:0:0:0:ffff:804b:48fa
128.75.72.251 0:0:0:0:0:ffff:804b:48fb
128.75.72.252 0:0:0:0:0:ffff:804b:48fc
128.75.72.253 0:0:0:0:0:ffff:804b:48fd
128.75.72.254 0:0:0:0:0:ffff:804b:48fe
128.75.72.255 0:0:0:0:0:ffff:804b: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.