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
19.73.72.1 0:0:0:0:0:ffff:1349:4801
19.73.72.2 0:0:0:0:0:ffff:1349:4802
19.73.72.3 0:0:0:0:0:ffff:1349:4803
19.73.72.4 0:0:0:0:0:ffff:1349:4804
19.73.72.5 0:0:0:0:0:ffff:1349:4805
19.73.72.6 0:0:0:0:0:ffff:1349:4806
19.73.72.7 0:0:0:0:0:ffff:1349:4807
19.73.72.8 0:0:0:0:0:ffff:1349:4808
19.73.72.9 0:0:0:0:0:ffff:1349:4809
19.73.72.10 0:0:0:0:0:ffff:1349:480a
19.73.72.11 0:0:0:0:0:ffff:1349:480b
19.73.72.12 0:0:0:0:0:ffff:1349:480c
19.73.72.13 0:0:0:0:0:ffff:1349:480d
19.73.72.14 0:0:0:0:0:ffff:1349:480e
19.73.72.15 0:0:0:0:0:ffff:1349:480f
19.73.72.16 0:0:0:0:0:ffff:1349:4810
19.73.72.17 0:0:0:0:0:ffff:1349:4811
19.73.72.18 0:0:0:0:0:ffff:1349:4812
19.73.72.19 0:0:0:0:0:ffff:1349:4813
19.73.72.20 0:0:0:0:0:ffff:1349:4814
19.73.72.21 0:0:0:0:0:ffff:1349:4815
19.73.72.22 0:0:0:0:0:ffff:1349:4816
19.73.72.23 0:0:0:0:0:ffff:1349:4817
19.73.72.24 0:0:0:0:0:ffff:1349:4818
19.73.72.25 0:0:0:0:0:ffff:1349:4819
19.73.72.26 0:0:0:0:0:ffff:1349:481a
19.73.72.27 0:0:0:0:0:ffff:1349:481b
19.73.72.28 0:0:0:0:0:ffff:1349:481c
19.73.72.29 0:0:0:0:0:ffff:1349:481d
19.73.72.30 0:0:0:0:0:ffff:1349:481e
19.73.72.31 0:0:0:0:0:ffff:1349:481f
19.73.72.32 0:0:0:0:0:ffff:1349:4820
19.73.72.33 0:0:0:0:0:ffff:1349:4821
19.73.72.34 0:0:0:0:0:ffff:1349:4822
19.73.72.35 0:0:0:0:0:ffff:1349:4823
19.73.72.36 0:0:0:0:0:ffff:1349:4824
19.73.72.37 0:0:0:0:0:ffff:1349:4825
19.73.72.38 0:0:0:0:0:ffff:1349:4826
19.73.72.39 0:0:0:0:0:ffff:1349:4827
19.73.72.40 0:0:0:0:0:ffff:1349:4828
19.73.72.41 0:0:0:0:0:ffff:1349:4829
19.73.72.42 0:0:0:0:0:ffff:1349:482a
19.73.72.43 0:0:0:0:0:ffff:1349:482b
19.73.72.44 0:0:0:0:0:ffff:1349:482c
19.73.72.45 0:0:0:0:0:ffff:1349:482d
19.73.72.46 0:0:0:0:0:ffff:1349:482e
19.73.72.47 0:0:0:0:0:ffff:1349:482f
19.73.72.48 0:0:0:0:0:ffff:1349:4830
19.73.72.49 0:0:0:0:0:ffff:1349:4831
19.73.72.50 0:0:0:0:0:ffff:1349:4832
19.73.72.51 0:0:0:0:0:ffff:1349:4833
19.73.72.52 0:0:0:0:0:ffff:1349:4834
19.73.72.53 0:0:0:0:0:ffff:1349:4835
19.73.72.54 0:0:0:0:0:ffff:1349:4836
19.73.72.55 0:0:0:0:0:ffff:1349:4837
19.73.72.56 0:0:0:0:0:ffff:1349:4838
19.73.72.57 0:0:0:0:0:ffff:1349:4839
19.73.72.58 0:0:0:0:0:ffff:1349:483a
19.73.72.59 0:0:0:0:0:ffff:1349:483b
19.73.72.60 0:0:0:0:0:ffff:1349:483c


19.73.72.61 0:0:0:0:0:ffff:1349:483d
19.73.72.62 0:0:0:0:0:ffff:1349:483e
19.73.72.63 0:0:0:0:0:ffff:1349:483f
19.73.72.64 0:0:0:0:0:ffff:1349:4840
19.73.72.65 0:0:0:0:0:ffff:1349:4841
19.73.72.66 0:0:0:0:0:ffff:1349:4842
19.73.72.67 0:0:0:0:0:ffff:1349:4843
19.73.72.68 0:0:0:0:0:ffff:1349:4844
19.73.72.69 0:0:0:0:0:ffff:1349:4845
19.73.72.70 0:0:0:0:0:ffff:1349:4846
19.73.72.71 0:0:0:0:0:ffff:1349:4847
19.73.72.72 0:0:0:0:0:ffff:1349:4848
19.73.72.73 0:0:0:0:0:ffff:1349:4849
19.73.72.74 0:0:0:0:0:ffff:1349:484a
19.73.72.75 0:0:0:0:0:ffff:1349:484b
19.73.72.76 0:0:0:0:0:ffff:1349:484c
19.73.72.77 0:0:0:0:0:ffff:1349:484d
19.73.72.78 0:0:0:0:0:ffff:1349:484e
19.73.72.79 0:0:0:0:0:ffff:1349:484f
19.73.72.80 0:0:0:0:0:ffff:1349:4850
19.73.72.81 0:0:0:0:0:ffff:1349:4851
19.73.72.82 0:0:0:0:0:ffff:1349:4852
19.73.72.83 0:0:0:0:0:ffff:1349:4853
19.73.72.84 0:0:0:0:0:ffff:1349:4854
19.73.72.85 0:0:0:0:0:ffff:1349:4855
19.73.72.86 0:0:0:0:0:ffff:1349:4856
19.73.72.87 0:0:0:0:0:ffff:1349:4857
19.73.72.88 0:0:0:0:0:ffff:1349:4858
19.73.72.89 0:0:0:0:0:ffff:1349:4859
19.73.72.90 0:0:0:0:0:ffff:1349:485a
19.73.72.91 0:0:0:0:0:ffff:1349:485b
19.73.72.92 0:0:0:0:0:ffff:1349:485c
19.73.72.93 0:0:0:0:0:ffff:1349:485d
19.73.72.94 0:0:0:0:0:ffff:1349:485e
19.73.72.95 0:0:0:0:0:ffff:1349:485f
19.73.72.96 0:0:0:0:0:ffff:1349:4860
19.73.72.97 0:0:0:0:0:ffff:1349:4861
19.73.72.98 0:0:0:0:0:ffff:1349:4862
19.73.72.99 0:0:0:0:0:ffff:1349:4863
19.73.72.100 0:0:0:0:0:ffff:1349:4864
19.73.72.101 0:0:0:0:0:ffff:1349:4865
19.73.72.102 0:0:0:0:0:ffff:1349:4866
19.73.72.103 0:0:0:0:0:ffff:1349:4867
19.73.72.104 0:0:0:0:0:ffff:1349:4868
19.73.72.105 0:0:0:0:0:ffff:1349:4869
19.73.72.106 0:0:0:0:0:ffff:1349:486a
19.73.72.107 0:0:0:0:0:ffff:1349:486b
19.73.72.108 0:0:0:0:0:ffff:1349:486c
19.73.72.109 0:0:0:0:0:ffff:1349:486d
19.73.72.110 0:0:0:0:0:ffff:1349:486e
19.73.72.111 0:0:0:0:0:ffff:1349:486f
19.73.72.112 0:0:0:0:0:ffff:1349:4870
19.73.72.113 0:0:0:0:0:ffff:1349:4871
19.73.72.114 0:0:0:0:0:ffff:1349:4872
19.73.72.115 0:0:0:0:0:ffff:1349:4873
19.73.72.116 0:0:0:0:0:ffff:1349:4874
19.73.72.117 0:0:0:0:0:ffff:1349:4875
19.73.72.118 0:0:0:0:0:ffff:1349:4876
19.73.72.119 0:0:0:0:0:ffff:1349:4877
19.73.72.120 0:0:0:0:0:ffff:1349:4878


19.73.72.121 0:0:0:0:0:ffff:1349:4879
19.73.72.122 0:0:0:0:0:ffff:1349:487a
19.73.72.123 0:0:0:0:0:ffff:1349:487b
19.73.72.124 0:0:0:0:0:ffff:1349:487c
19.73.72.125 0:0:0:0:0:ffff:1349:487d
19.73.72.126 0:0:0:0:0:ffff:1349:487e
19.73.72.127 0:0:0:0:0:ffff:1349:487f
19.73.72.128 0:0:0:0:0:ffff:1349:4880
19.73.72.129 0:0:0:0:0:ffff:1349:4881
19.73.72.130 0:0:0:0:0:ffff:1349:4882
19.73.72.131 0:0:0:0:0:ffff:1349:4883
19.73.72.132 0:0:0:0:0:ffff:1349:4884
19.73.72.133 0:0:0:0:0:ffff:1349:4885
19.73.72.134 0:0:0:0:0:ffff:1349:4886
19.73.72.135 0:0:0:0:0:ffff:1349:4887
19.73.72.136 0:0:0:0:0:ffff:1349:4888
19.73.72.137 0:0:0:0:0:ffff:1349:4889
19.73.72.138 0:0:0:0:0:ffff:1349:488a
19.73.72.139 0:0:0:0:0:ffff:1349:488b
19.73.72.140 0:0:0:0:0:ffff:1349:488c
19.73.72.141 0:0:0:0:0:ffff:1349:488d
19.73.72.142 0:0:0:0:0:ffff:1349:488e
19.73.72.143 0:0:0:0:0:ffff:1349:488f
19.73.72.144 0:0:0:0:0:ffff:1349:4890
19.73.72.145 0:0:0:0:0:ffff:1349:4891
19.73.72.146 0:0:0:0:0:ffff:1349:4892
19.73.72.147 0:0:0:0:0:ffff:1349:4893
19.73.72.148 0:0:0:0:0:ffff:1349:4894
19.73.72.149 0:0:0:0:0:ffff:1349:4895
19.73.72.150 0:0:0:0:0:ffff:1349:4896
19.73.72.151 0:0:0:0:0:ffff:1349:4897
19.73.72.152 0:0:0:0:0:ffff:1349:4898
19.73.72.153 0:0:0:0:0:ffff:1349:4899
19.73.72.154 0:0:0:0:0:ffff:1349:489a
19.73.72.155 0:0:0:0:0:ffff:1349:489b
19.73.72.156 0:0:0:0:0:ffff:1349:489c
19.73.72.157 0:0:0:0:0:ffff:1349:489d
19.73.72.158 0:0:0:0:0:ffff:1349:489e
19.73.72.159 0:0:0:0:0:ffff:1349:489f
19.73.72.160 0:0:0:0:0:ffff:1349:48a0
19.73.72.161 0:0:0:0:0:ffff:1349:48a1
19.73.72.162 0:0:0:0:0:ffff:1349:48a2
19.73.72.163 0:0:0:0:0:ffff:1349:48a3
19.73.72.164 0:0:0:0:0:ffff:1349:48a4
19.73.72.165 0:0:0:0:0:ffff:1349:48a5
19.73.72.166 0:0:0:0:0:ffff:1349:48a6
19.73.72.167 0:0:0:0:0:ffff:1349:48a7
19.73.72.168 0:0:0:0:0:ffff:1349:48a8
19.73.72.169 0:0:0:0:0:ffff:1349:48a9
19.73.72.170 0:0:0:0:0:ffff:1349:48aa
19.73.72.171 0:0:0:0:0:ffff:1349:48ab
19.73.72.172 0:0:0:0:0:ffff:1349:48ac
19.73.72.173 0:0:0:0:0:ffff:1349:48ad
19.73.72.174 0:0:0:0:0:ffff:1349:48ae
19.73.72.175 0:0:0:0:0:ffff:1349:48af
19.73.72.176 0:0:0:0:0:ffff:1349:48b0
19.73.72.177 0:0:0:0:0:ffff:1349:48b1
19.73.72.178 0:0:0:0:0:ffff:1349:48b2
19.73.72.179 0:0:0:0:0:ffff:1349:48b3
19.73.72.180 0:0:0:0:0:ffff:1349:48b4


19.73.72.181 0:0:0:0:0:ffff:1349:48b5
19.73.72.182 0:0:0:0:0:ffff:1349:48b6
19.73.72.183 0:0:0:0:0:ffff:1349:48b7
19.73.72.184 0:0:0:0:0:ffff:1349:48b8
19.73.72.185 0:0:0:0:0:ffff:1349:48b9
19.73.72.186 0:0:0:0:0:ffff:1349:48ba
19.73.72.187 0:0:0:0:0:ffff:1349:48bb
19.73.72.188 0:0:0:0:0:ffff:1349:48bc
19.73.72.189 0:0:0:0:0:ffff:1349:48bd
19.73.72.190 0:0:0:0:0:ffff:1349:48be
19.73.72.191 0:0:0:0:0:ffff:1349:48bf
19.73.72.192 0:0:0:0:0:ffff:1349:48c0
19.73.72.193 0:0:0:0:0:ffff:1349:48c1
19.73.72.194 0:0:0:0:0:ffff:1349:48c2
19.73.72.195 0:0:0:0:0:ffff:1349:48c3
19.73.72.196 0:0:0:0:0:ffff:1349:48c4
19.73.72.197 0:0:0:0:0:ffff:1349:48c5
19.73.72.198 0:0:0:0:0:ffff:1349:48c6
19.73.72.199 0:0:0:0:0:ffff:1349:48c7
19.73.72.200 0:0:0:0:0:ffff:1349:48c8
19.73.72.201 0:0:0:0:0:ffff:1349:48c9
19.73.72.202 0:0:0:0:0:ffff:1349:48ca
19.73.72.203 0:0:0:0:0:ffff:1349:48cb
19.73.72.204 0:0:0:0:0:ffff:1349:48cc
19.73.72.205 0:0:0:0:0:ffff:1349:48cd
19.73.72.206 0:0:0:0:0:ffff:1349:48ce
19.73.72.207 0:0:0:0:0:ffff:1349:48cf
19.73.72.208 0:0:0:0:0:ffff:1349:48d0
19.73.72.209 0:0:0:0:0:ffff:1349:48d1
19.73.72.210 0:0:0:0:0:ffff:1349:48d2
19.73.72.211 0:0:0:0:0:ffff:1349:48d3
19.73.72.212 0:0:0:0:0:ffff:1349:48d4
19.73.72.213 0:0:0:0:0:ffff:1349:48d5
19.73.72.214 0:0:0:0:0:ffff:1349:48d6
19.73.72.215 0:0:0:0:0:ffff:1349:48d7
19.73.72.216 0:0:0:0:0:ffff:1349:48d8
19.73.72.217 0:0:0:0:0:ffff:1349:48d9
19.73.72.218 0:0:0:0:0:ffff:1349:48da
19.73.72.219 0:0:0:0:0:ffff:1349:48db
19.73.72.220 0:0:0:0:0:ffff:1349:48dc
19.73.72.221 0:0:0:0:0:ffff:1349:48dd
19.73.72.222 0:0:0:0:0:ffff:1349:48de
19.73.72.223 0:0:0:0:0:ffff:1349:48df
19.73.72.224 0:0:0:0:0:ffff:1349:48e0
19.73.72.225 0:0:0:0:0:ffff:1349:48e1
19.73.72.226 0:0:0:0:0:ffff:1349:48e2
19.73.72.227 0:0:0:0:0:ffff:1349:48e3
19.73.72.228 0:0:0:0:0:ffff:1349:48e4
19.73.72.229 0:0:0:0:0:ffff:1349:48e5
19.73.72.230 0:0:0:0:0:ffff:1349:48e6
19.73.72.231 0:0:0:0:0:ffff:1349:48e7
19.73.72.232 0:0:0:0:0:ffff:1349:48e8
19.73.72.233 0:0:0:0:0:ffff:1349:48e9
19.73.72.234 0:0:0:0:0:ffff:1349:48ea
19.73.72.235 0:0:0:0:0:ffff:1349:48eb
19.73.72.236 0:0:0:0:0:ffff:1349:48ec
19.73.72.237 0:0:0:0:0:ffff:1349:48ed
19.73.72.238 0:0:0:0:0:ffff:1349:48ee
19.73.72.239 0:0:0:0:0:ffff:1349:48ef
19.73.72.240 0:0:0:0:0:ffff:1349:48f0
19.73.72.241 0:0:0:0:0:ffff:1349:48f1
19.73.72.242 0:0:0:0:0:ffff:1349:48f2
19.73.72.243 0:0:0:0:0:ffff:1349:48f3
19.73.72.244 0:0:0:0:0:ffff:1349:48f4
19.73.72.245 0:0:0:0:0:ffff:1349:48f5
19.73.72.246 0:0:0:0:0:ffff:1349:48f6
19.73.72.247 0:0:0:0:0:ffff:1349:48f7
19.73.72.248 0:0:0:0:0:ffff:1349:48f8
19.73.72.249 0:0:0:0:0:ffff:1349:48f9
19.73.72.250 0:0:0:0:0:ffff:1349:48fa
19.73.72.251 0:0:0:0:0:ffff:1349:48fb
19.73.72.252 0:0:0:0:0:ffff:1349:48fc
19.73.72.253 0:0:0:0:0:ffff:1349:48fd
19.73.72.254 0:0:0:0:0:ffff:1349:48fe
19.73.72.255 0:0:0:0:0:ffff:1349:48ff


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.