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
171.45.72.1 0:0:0:0:0:ffff:ab2d:4801
171.45.72.2 0:0:0:0:0:ffff:ab2d:4802
171.45.72.3 0:0:0:0:0:ffff:ab2d:4803
171.45.72.4 0:0:0:0:0:ffff:ab2d:4804
171.45.72.5 0:0:0:0:0:ffff:ab2d:4805
171.45.72.6 0:0:0:0:0:ffff:ab2d:4806
171.45.72.7 0:0:0:0:0:ffff:ab2d:4807
171.45.72.8 0:0:0:0:0:ffff:ab2d:4808
171.45.72.9 0:0:0:0:0:ffff:ab2d:4809
171.45.72.10 0:0:0:0:0:ffff:ab2d:480a
171.45.72.11 0:0:0:0:0:ffff:ab2d:480b
171.45.72.12 0:0:0:0:0:ffff:ab2d:480c
171.45.72.13 0:0:0:0:0:ffff:ab2d:480d
171.45.72.14 0:0:0:0:0:ffff:ab2d:480e
171.45.72.15 0:0:0:0:0:ffff:ab2d:480f
171.45.72.16 0:0:0:0:0:ffff:ab2d:4810
171.45.72.17 0:0:0:0:0:ffff:ab2d:4811
171.45.72.18 0:0:0:0:0:ffff:ab2d:4812
171.45.72.19 0:0:0:0:0:ffff:ab2d:4813
171.45.72.20 0:0:0:0:0:ffff:ab2d:4814
171.45.72.21 0:0:0:0:0:ffff:ab2d:4815
171.45.72.22 0:0:0:0:0:ffff:ab2d:4816
171.45.72.23 0:0:0:0:0:ffff:ab2d:4817
171.45.72.24 0:0:0:0:0:ffff:ab2d:4818
171.45.72.25 0:0:0:0:0:ffff:ab2d:4819
171.45.72.26 0:0:0:0:0:ffff:ab2d:481a
171.45.72.27 0:0:0:0:0:ffff:ab2d:481b
171.45.72.28 0:0:0:0:0:ffff:ab2d:481c
171.45.72.29 0:0:0:0:0:ffff:ab2d:481d
171.45.72.30 0:0:0:0:0:ffff:ab2d:481e
171.45.72.31 0:0:0:0:0:ffff:ab2d:481f
171.45.72.32 0:0:0:0:0:ffff:ab2d:4820
171.45.72.33 0:0:0:0:0:ffff:ab2d:4821
171.45.72.34 0:0:0:0:0:ffff:ab2d:4822
171.45.72.35 0:0:0:0:0:ffff:ab2d:4823
171.45.72.36 0:0:0:0:0:ffff:ab2d:4824
171.45.72.37 0:0:0:0:0:ffff:ab2d:4825
171.45.72.38 0:0:0:0:0:ffff:ab2d:4826
171.45.72.39 0:0:0:0:0:ffff:ab2d:4827
171.45.72.40 0:0:0:0:0:ffff:ab2d:4828
171.45.72.41 0:0:0:0:0:ffff:ab2d:4829
171.45.72.42 0:0:0:0:0:ffff:ab2d:482a
171.45.72.43 0:0:0:0:0:ffff:ab2d:482b
171.45.72.44 0:0:0:0:0:ffff:ab2d:482c
171.45.72.45 0:0:0:0:0:ffff:ab2d:482d
171.45.72.46 0:0:0:0:0:ffff:ab2d:482e
171.45.72.47 0:0:0:0:0:ffff:ab2d:482f
171.45.72.48 0:0:0:0:0:ffff:ab2d:4830
171.45.72.49 0:0:0:0:0:ffff:ab2d:4831
171.45.72.50 0:0:0:0:0:ffff:ab2d:4832
171.45.72.51 0:0:0:0:0:ffff:ab2d:4833
171.45.72.52 0:0:0:0:0:ffff:ab2d:4834
171.45.72.53 0:0:0:0:0:ffff:ab2d:4835
171.45.72.54 0:0:0:0:0:ffff:ab2d:4836
171.45.72.55 0:0:0:0:0:ffff:ab2d:4837
171.45.72.56 0:0:0:0:0:ffff:ab2d:4838
171.45.72.57 0:0:0:0:0:ffff:ab2d:4839
171.45.72.58 0:0:0:0:0:ffff:ab2d:483a
171.45.72.59 0:0:0:0:0:ffff:ab2d:483b
171.45.72.60 0:0:0:0:0:ffff:ab2d:483c


171.45.72.61 0:0:0:0:0:ffff:ab2d:483d
171.45.72.62 0:0:0:0:0:ffff:ab2d:483e
171.45.72.63 0:0:0:0:0:ffff:ab2d:483f
171.45.72.64 0:0:0:0:0:ffff:ab2d:4840
171.45.72.65 0:0:0:0:0:ffff:ab2d:4841
171.45.72.66 0:0:0:0:0:ffff:ab2d:4842
171.45.72.67 0:0:0:0:0:ffff:ab2d:4843
171.45.72.68 0:0:0:0:0:ffff:ab2d:4844
171.45.72.69 0:0:0:0:0:ffff:ab2d:4845
171.45.72.70 0:0:0:0:0:ffff:ab2d:4846
171.45.72.71 0:0:0:0:0:ffff:ab2d:4847
171.45.72.72 0:0:0:0:0:ffff:ab2d:4848
171.45.72.73 0:0:0:0:0:ffff:ab2d:4849
171.45.72.74 0:0:0:0:0:ffff:ab2d:484a
171.45.72.75 0:0:0:0:0:ffff:ab2d:484b
171.45.72.76 0:0:0:0:0:ffff:ab2d:484c
171.45.72.77 0:0:0:0:0:ffff:ab2d:484d
171.45.72.78 0:0:0:0:0:ffff:ab2d:484e
171.45.72.79 0:0:0:0:0:ffff:ab2d:484f
171.45.72.80 0:0:0:0:0:ffff:ab2d:4850
171.45.72.81 0:0:0:0:0:ffff:ab2d:4851
171.45.72.82 0:0:0:0:0:ffff:ab2d:4852
171.45.72.83 0:0:0:0:0:ffff:ab2d:4853
171.45.72.84 0:0:0:0:0:ffff:ab2d:4854
171.45.72.85 0:0:0:0:0:ffff:ab2d:4855
171.45.72.86 0:0:0:0:0:ffff:ab2d:4856
171.45.72.87 0:0:0:0:0:ffff:ab2d:4857
171.45.72.88 0:0:0:0:0:ffff:ab2d:4858
171.45.72.89 0:0:0:0:0:ffff:ab2d:4859
171.45.72.90 0:0:0:0:0:ffff:ab2d:485a
171.45.72.91 0:0:0:0:0:ffff:ab2d:485b
171.45.72.92 0:0:0:0:0:ffff:ab2d:485c
171.45.72.93 0:0:0:0:0:ffff:ab2d:485d
171.45.72.94 0:0:0:0:0:ffff:ab2d:485e
171.45.72.95 0:0:0:0:0:ffff:ab2d:485f
171.45.72.96 0:0:0:0:0:ffff:ab2d:4860
171.45.72.97 0:0:0:0:0:ffff:ab2d:4861
171.45.72.98 0:0:0:0:0:ffff:ab2d:4862
171.45.72.99 0:0:0:0:0:ffff:ab2d:4863
171.45.72.100 0:0:0:0:0:ffff:ab2d:4864
171.45.72.101 0:0:0:0:0:ffff:ab2d:4865
171.45.72.102 0:0:0:0:0:ffff:ab2d:4866
171.45.72.103 0:0:0:0:0:ffff:ab2d:4867
171.45.72.104 0:0:0:0:0:ffff:ab2d:4868
171.45.72.105 0:0:0:0:0:ffff:ab2d:4869
171.45.72.106 0:0:0:0:0:ffff:ab2d:486a
171.45.72.107 0:0:0:0:0:ffff:ab2d:486b
171.45.72.108 0:0:0:0:0:ffff:ab2d:486c
171.45.72.109 0:0:0:0:0:ffff:ab2d:486d
171.45.72.110 0:0:0:0:0:ffff:ab2d:486e
171.45.72.111 0:0:0:0:0:ffff:ab2d:486f
171.45.72.112 0:0:0:0:0:ffff:ab2d:4870
171.45.72.113 0:0:0:0:0:ffff:ab2d:4871
171.45.72.114 0:0:0:0:0:ffff:ab2d:4872
171.45.72.115 0:0:0:0:0:ffff:ab2d:4873
171.45.72.116 0:0:0:0:0:ffff:ab2d:4874
171.45.72.117 0:0:0:0:0:ffff:ab2d:4875
171.45.72.118 0:0:0:0:0:ffff:ab2d:4876
171.45.72.119 0:0:0:0:0:ffff:ab2d:4877
171.45.72.120 0:0:0:0:0:ffff:ab2d:4878


171.45.72.121 0:0:0:0:0:ffff:ab2d:4879
171.45.72.122 0:0:0:0:0:ffff:ab2d:487a
171.45.72.123 0:0:0:0:0:ffff:ab2d:487b
171.45.72.124 0:0:0:0:0:ffff:ab2d:487c
171.45.72.125 0:0:0:0:0:ffff:ab2d:487d
171.45.72.126 0:0:0:0:0:ffff:ab2d:487e
171.45.72.127 0:0:0:0:0:ffff:ab2d:487f
171.45.72.128 0:0:0:0:0:ffff:ab2d:4880
171.45.72.129 0:0:0:0:0:ffff:ab2d:4881
171.45.72.130 0:0:0:0:0:ffff:ab2d:4882
171.45.72.131 0:0:0:0:0:ffff:ab2d:4883
171.45.72.132 0:0:0:0:0:ffff:ab2d:4884
171.45.72.133 0:0:0:0:0:ffff:ab2d:4885
171.45.72.134 0:0:0:0:0:ffff:ab2d:4886
171.45.72.135 0:0:0:0:0:ffff:ab2d:4887
171.45.72.136 0:0:0:0:0:ffff:ab2d:4888
171.45.72.137 0:0:0:0:0:ffff:ab2d:4889
171.45.72.138 0:0:0:0:0:ffff:ab2d:488a
171.45.72.139 0:0:0:0:0:ffff:ab2d:488b
171.45.72.140 0:0:0:0:0:ffff:ab2d:488c
171.45.72.141 0:0:0:0:0:ffff:ab2d:488d
171.45.72.142 0:0:0:0:0:ffff:ab2d:488e
171.45.72.143 0:0:0:0:0:ffff:ab2d:488f
171.45.72.144 0:0:0:0:0:ffff:ab2d:4890
171.45.72.145 0:0:0:0:0:ffff:ab2d:4891
171.45.72.146 0:0:0:0:0:ffff:ab2d:4892
171.45.72.147 0:0:0:0:0:ffff:ab2d:4893
171.45.72.148 0:0:0:0:0:ffff:ab2d:4894
171.45.72.149 0:0:0:0:0:ffff:ab2d:4895
171.45.72.150 0:0:0:0:0:ffff:ab2d:4896
171.45.72.151 0:0:0:0:0:ffff:ab2d:4897
171.45.72.152 0:0:0:0:0:ffff:ab2d:4898
171.45.72.153 0:0:0:0:0:ffff:ab2d:4899
171.45.72.154 0:0:0:0:0:ffff:ab2d:489a
171.45.72.155 0:0:0:0:0:ffff:ab2d:489b
171.45.72.156 0:0:0:0:0:ffff:ab2d:489c
171.45.72.157 0:0:0:0:0:ffff:ab2d:489d
171.45.72.158 0:0:0:0:0:ffff:ab2d:489e
171.45.72.159 0:0:0:0:0:ffff:ab2d:489f
171.45.72.160 0:0:0:0:0:ffff:ab2d:48a0
171.45.72.161 0:0:0:0:0:ffff:ab2d:48a1
171.45.72.162 0:0:0:0:0:ffff:ab2d:48a2
171.45.72.163 0:0:0:0:0:ffff:ab2d:48a3
171.45.72.164 0:0:0:0:0:ffff:ab2d:48a4
171.45.72.165 0:0:0:0:0:ffff:ab2d:48a5
171.45.72.166 0:0:0:0:0:ffff:ab2d:48a6
171.45.72.167 0:0:0:0:0:ffff:ab2d:48a7
171.45.72.168 0:0:0:0:0:ffff:ab2d:48a8
171.45.72.169 0:0:0:0:0:ffff:ab2d:48a9
171.45.72.170 0:0:0:0:0:ffff:ab2d:48aa
171.45.72.171 0:0:0:0:0:ffff:ab2d:48ab
171.45.72.172 0:0:0:0:0:ffff:ab2d:48ac
171.45.72.173 0:0:0:0:0:ffff:ab2d:48ad
171.45.72.174 0:0:0:0:0:ffff:ab2d:48ae
171.45.72.175 0:0:0:0:0:ffff:ab2d:48af
171.45.72.176 0:0:0:0:0:ffff:ab2d:48b0
171.45.72.177 0:0:0:0:0:ffff:ab2d:48b1
171.45.72.178 0:0:0:0:0:ffff:ab2d:48b2
171.45.72.179 0:0:0:0:0:ffff:ab2d:48b3
171.45.72.180 0:0:0:0:0:ffff:ab2d:48b4


171.45.72.181 0:0:0:0:0:ffff:ab2d:48b5
171.45.72.182 0:0:0:0:0:ffff:ab2d:48b6
171.45.72.183 0:0:0:0:0:ffff:ab2d:48b7
171.45.72.184 0:0:0:0:0:ffff:ab2d:48b8
171.45.72.185 0:0:0:0:0:ffff:ab2d:48b9
171.45.72.186 0:0:0:0:0:ffff:ab2d:48ba
171.45.72.187 0:0:0:0:0:ffff:ab2d:48bb
171.45.72.188 0:0:0:0:0:ffff:ab2d:48bc
171.45.72.189 0:0:0:0:0:ffff:ab2d:48bd
171.45.72.190 0:0:0:0:0:ffff:ab2d:48be
171.45.72.191 0:0:0:0:0:ffff:ab2d:48bf
171.45.72.192 0:0:0:0:0:ffff:ab2d:48c0
171.45.72.193 0:0:0:0:0:ffff:ab2d:48c1
171.45.72.194 0:0:0:0:0:ffff:ab2d:48c2
171.45.72.195 0:0:0:0:0:ffff:ab2d:48c3
171.45.72.196 0:0:0:0:0:ffff:ab2d:48c4
171.45.72.197 0:0:0:0:0:ffff:ab2d:48c5
171.45.72.198 0:0:0:0:0:ffff:ab2d:48c6
171.45.72.199 0:0:0:0:0:ffff:ab2d:48c7
171.45.72.200 0:0:0:0:0:ffff:ab2d:48c8
171.45.72.201 0:0:0:0:0:ffff:ab2d:48c9
171.45.72.202 0:0:0:0:0:ffff:ab2d:48ca
171.45.72.203 0:0:0:0:0:ffff:ab2d:48cb
171.45.72.204 0:0:0:0:0:ffff:ab2d:48cc
171.45.72.205 0:0:0:0:0:ffff:ab2d:48cd
171.45.72.206 0:0:0:0:0:ffff:ab2d:48ce
171.45.72.207 0:0:0:0:0:ffff:ab2d:48cf
171.45.72.208 0:0:0:0:0:ffff:ab2d:48d0
171.45.72.209 0:0:0:0:0:ffff:ab2d:48d1
171.45.72.210 0:0:0:0:0:ffff:ab2d:48d2
171.45.72.211 0:0:0:0:0:ffff:ab2d:48d3
171.45.72.212 0:0:0:0:0:ffff:ab2d:48d4
171.45.72.213 0:0:0:0:0:ffff:ab2d:48d5
171.45.72.214 0:0:0:0:0:ffff:ab2d:48d6
171.45.72.215 0:0:0:0:0:ffff:ab2d:48d7
171.45.72.216 0:0:0:0:0:ffff:ab2d:48d8
171.45.72.217 0:0:0:0:0:ffff:ab2d:48d9
171.45.72.218 0:0:0:0:0:ffff:ab2d:48da
171.45.72.219 0:0:0:0:0:ffff:ab2d:48db
171.45.72.220 0:0:0:0:0:ffff:ab2d:48dc
171.45.72.221 0:0:0:0:0:ffff:ab2d:48dd
171.45.72.222 0:0:0:0:0:ffff:ab2d:48de
171.45.72.223 0:0:0:0:0:ffff:ab2d:48df
171.45.72.224 0:0:0:0:0:ffff:ab2d:48e0
171.45.72.225 0:0:0:0:0:ffff:ab2d:48e1
171.45.72.226 0:0:0:0:0:ffff:ab2d:48e2
171.45.72.227 0:0:0:0:0:ffff:ab2d:48e3
171.45.72.228 0:0:0:0:0:ffff:ab2d:48e4
171.45.72.229 0:0:0:0:0:ffff:ab2d:48e5
171.45.72.230 0:0:0:0:0:ffff:ab2d:48e6
171.45.72.231 0:0:0:0:0:ffff:ab2d:48e7
171.45.72.232 0:0:0:0:0:ffff:ab2d:48e8
171.45.72.233 0:0:0:0:0:ffff:ab2d:48e9
171.45.72.234 0:0:0:0:0:ffff:ab2d:48ea
171.45.72.235 0:0:0:0:0:ffff:ab2d:48eb
171.45.72.236 0:0:0:0:0:ffff:ab2d:48ec
171.45.72.237 0:0:0:0:0:ffff:ab2d:48ed
171.45.72.238 0:0:0:0:0:ffff:ab2d:48ee
171.45.72.239 0:0:0:0:0:ffff:ab2d:48ef
171.45.72.240 0:0:0:0:0:ffff:ab2d:48f0
171.45.72.241 0:0:0:0:0:ffff:ab2d:48f1
171.45.72.242 0:0:0:0:0:ffff:ab2d:48f2
171.45.72.243 0:0:0:0:0:ffff:ab2d:48f3
171.45.72.244 0:0:0:0:0:ffff:ab2d:48f4
171.45.72.245 0:0:0:0:0:ffff:ab2d:48f5
171.45.72.246 0:0:0:0:0:ffff:ab2d:48f6
171.45.72.247 0:0:0:0:0:ffff:ab2d:48f7
171.45.72.248 0:0:0:0:0:ffff:ab2d:48f8
171.45.72.249 0:0:0:0:0:ffff:ab2d:48f9
171.45.72.250 0:0:0:0:0:ffff:ab2d:48fa
171.45.72.251 0:0:0:0:0:ffff:ab2d:48fb
171.45.72.252 0:0:0:0:0:ffff:ab2d:48fc
171.45.72.253 0:0:0:0:0:ffff:ab2d:48fd
171.45.72.254 0:0:0:0:0:ffff:ab2d:48fe
171.45.72.255 0:0:0:0:0:ffff:ab2d: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.