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
33.121.72.1 0:0:0:0:0:ffff:2179:4801
33.121.72.2 0:0:0:0:0:ffff:2179:4802
33.121.72.3 0:0:0:0:0:ffff:2179:4803
33.121.72.4 0:0:0:0:0:ffff:2179:4804
33.121.72.5 0:0:0:0:0:ffff:2179:4805
33.121.72.6 0:0:0:0:0:ffff:2179:4806
33.121.72.7 0:0:0:0:0:ffff:2179:4807
33.121.72.8 0:0:0:0:0:ffff:2179:4808
33.121.72.9 0:0:0:0:0:ffff:2179:4809
33.121.72.10 0:0:0:0:0:ffff:2179:480a
33.121.72.11 0:0:0:0:0:ffff:2179:480b
33.121.72.12 0:0:0:0:0:ffff:2179:480c
33.121.72.13 0:0:0:0:0:ffff:2179:480d
33.121.72.14 0:0:0:0:0:ffff:2179:480e
33.121.72.15 0:0:0:0:0:ffff:2179:480f
33.121.72.16 0:0:0:0:0:ffff:2179:4810
33.121.72.17 0:0:0:0:0:ffff:2179:4811
33.121.72.18 0:0:0:0:0:ffff:2179:4812
33.121.72.19 0:0:0:0:0:ffff:2179:4813
33.121.72.20 0:0:0:0:0:ffff:2179:4814
33.121.72.21 0:0:0:0:0:ffff:2179:4815
33.121.72.22 0:0:0:0:0:ffff:2179:4816
33.121.72.23 0:0:0:0:0:ffff:2179:4817
33.121.72.24 0:0:0:0:0:ffff:2179:4818
33.121.72.25 0:0:0:0:0:ffff:2179:4819
33.121.72.26 0:0:0:0:0:ffff:2179:481a
33.121.72.27 0:0:0:0:0:ffff:2179:481b
33.121.72.28 0:0:0:0:0:ffff:2179:481c
33.121.72.29 0:0:0:0:0:ffff:2179:481d
33.121.72.30 0:0:0:0:0:ffff:2179:481e
33.121.72.31 0:0:0:0:0:ffff:2179:481f
33.121.72.32 0:0:0:0:0:ffff:2179:4820
33.121.72.33 0:0:0:0:0:ffff:2179:4821
33.121.72.34 0:0:0:0:0:ffff:2179:4822
33.121.72.35 0:0:0:0:0:ffff:2179:4823
33.121.72.36 0:0:0:0:0:ffff:2179:4824
33.121.72.37 0:0:0:0:0:ffff:2179:4825
33.121.72.38 0:0:0:0:0:ffff:2179:4826
33.121.72.39 0:0:0:0:0:ffff:2179:4827
33.121.72.40 0:0:0:0:0:ffff:2179:4828
33.121.72.41 0:0:0:0:0:ffff:2179:4829
33.121.72.42 0:0:0:0:0:ffff:2179:482a
33.121.72.43 0:0:0:0:0:ffff:2179:482b
33.121.72.44 0:0:0:0:0:ffff:2179:482c
33.121.72.45 0:0:0:0:0:ffff:2179:482d
33.121.72.46 0:0:0:0:0:ffff:2179:482e
33.121.72.47 0:0:0:0:0:ffff:2179:482f
33.121.72.48 0:0:0:0:0:ffff:2179:4830
33.121.72.49 0:0:0:0:0:ffff:2179:4831
33.121.72.50 0:0:0:0:0:ffff:2179:4832
33.121.72.51 0:0:0:0:0:ffff:2179:4833
33.121.72.52 0:0:0:0:0:ffff:2179:4834
33.121.72.53 0:0:0:0:0:ffff:2179:4835
33.121.72.54 0:0:0:0:0:ffff:2179:4836
33.121.72.55 0:0:0:0:0:ffff:2179:4837
33.121.72.56 0:0:0:0:0:ffff:2179:4838
33.121.72.57 0:0:0:0:0:ffff:2179:4839
33.121.72.58 0:0:0:0:0:ffff:2179:483a
33.121.72.59 0:0:0:0:0:ffff:2179:483b
33.121.72.60 0:0:0:0:0:ffff:2179:483c


33.121.72.61 0:0:0:0:0:ffff:2179:483d
33.121.72.62 0:0:0:0:0:ffff:2179:483e
33.121.72.63 0:0:0:0:0:ffff:2179:483f
33.121.72.64 0:0:0:0:0:ffff:2179:4840
33.121.72.65 0:0:0:0:0:ffff:2179:4841
33.121.72.66 0:0:0:0:0:ffff:2179:4842
33.121.72.67 0:0:0:0:0:ffff:2179:4843
33.121.72.68 0:0:0:0:0:ffff:2179:4844
33.121.72.69 0:0:0:0:0:ffff:2179:4845
33.121.72.70 0:0:0:0:0:ffff:2179:4846
33.121.72.71 0:0:0:0:0:ffff:2179:4847
33.121.72.72 0:0:0:0:0:ffff:2179:4848
33.121.72.73 0:0:0:0:0:ffff:2179:4849
33.121.72.74 0:0:0:0:0:ffff:2179:484a
33.121.72.75 0:0:0:0:0:ffff:2179:484b
33.121.72.76 0:0:0:0:0:ffff:2179:484c
33.121.72.77 0:0:0:0:0:ffff:2179:484d
33.121.72.78 0:0:0:0:0:ffff:2179:484e
33.121.72.79 0:0:0:0:0:ffff:2179:484f
33.121.72.80 0:0:0:0:0:ffff:2179:4850
33.121.72.81 0:0:0:0:0:ffff:2179:4851
33.121.72.82 0:0:0:0:0:ffff:2179:4852
33.121.72.83 0:0:0:0:0:ffff:2179:4853
33.121.72.84 0:0:0:0:0:ffff:2179:4854
33.121.72.85 0:0:0:0:0:ffff:2179:4855
33.121.72.86 0:0:0:0:0:ffff:2179:4856
33.121.72.87 0:0:0:0:0:ffff:2179:4857
33.121.72.88 0:0:0:0:0:ffff:2179:4858
33.121.72.89 0:0:0:0:0:ffff:2179:4859
33.121.72.90 0:0:0:0:0:ffff:2179:485a
33.121.72.91 0:0:0:0:0:ffff:2179:485b
33.121.72.92 0:0:0:0:0:ffff:2179:485c
33.121.72.93 0:0:0:0:0:ffff:2179:485d
33.121.72.94 0:0:0:0:0:ffff:2179:485e
33.121.72.95 0:0:0:0:0:ffff:2179:485f
33.121.72.96 0:0:0:0:0:ffff:2179:4860
33.121.72.97 0:0:0:0:0:ffff:2179:4861
33.121.72.98 0:0:0:0:0:ffff:2179:4862
33.121.72.99 0:0:0:0:0:ffff:2179:4863
33.121.72.100 0:0:0:0:0:ffff:2179:4864
33.121.72.101 0:0:0:0:0:ffff:2179:4865
33.121.72.102 0:0:0:0:0:ffff:2179:4866
33.121.72.103 0:0:0:0:0:ffff:2179:4867
33.121.72.104 0:0:0:0:0:ffff:2179:4868
33.121.72.105 0:0:0:0:0:ffff:2179:4869
33.121.72.106 0:0:0:0:0:ffff:2179:486a
33.121.72.107 0:0:0:0:0:ffff:2179:486b
33.121.72.108 0:0:0:0:0:ffff:2179:486c
33.121.72.109 0:0:0:0:0:ffff:2179:486d
33.121.72.110 0:0:0:0:0:ffff:2179:486e
33.121.72.111 0:0:0:0:0:ffff:2179:486f
33.121.72.112 0:0:0:0:0:ffff:2179:4870
33.121.72.113 0:0:0:0:0:ffff:2179:4871
33.121.72.114 0:0:0:0:0:ffff:2179:4872
33.121.72.115 0:0:0:0:0:ffff:2179:4873
33.121.72.116 0:0:0:0:0:ffff:2179:4874
33.121.72.117 0:0:0:0:0:ffff:2179:4875
33.121.72.118 0:0:0:0:0:ffff:2179:4876
33.121.72.119 0:0:0:0:0:ffff:2179:4877
33.121.72.120 0:0:0:0:0:ffff:2179:4878


33.121.72.121 0:0:0:0:0:ffff:2179:4879
33.121.72.122 0:0:0:0:0:ffff:2179:487a
33.121.72.123 0:0:0:0:0:ffff:2179:487b
33.121.72.124 0:0:0:0:0:ffff:2179:487c
33.121.72.125 0:0:0:0:0:ffff:2179:487d
33.121.72.126 0:0:0:0:0:ffff:2179:487e
33.121.72.127 0:0:0:0:0:ffff:2179:487f
33.121.72.128 0:0:0:0:0:ffff:2179:4880
33.121.72.129 0:0:0:0:0:ffff:2179:4881
33.121.72.130 0:0:0:0:0:ffff:2179:4882
33.121.72.131 0:0:0:0:0:ffff:2179:4883
33.121.72.132 0:0:0:0:0:ffff:2179:4884
33.121.72.133 0:0:0:0:0:ffff:2179:4885
33.121.72.134 0:0:0:0:0:ffff:2179:4886
33.121.72.135 0:0:0:0:0:ffff:2179:4887
33.121.72.136 0:0:0:0:0:ffff:2179:4888
33.121.72.137 0:0:0:0:0:ffff:2179:4889
33.121.72.138 0:0:0:0:0:ffff:2179:488a
33.121.72.139 0:0:0:0:0:ffff:2179:488b
33.121.72.140 0:0:0:0:0:ffff:2179:488c
33.121.72.141 0:0:0:0:0:ffff:2179:488d
33.121.72.142 0:0:0:0:0:ffff:2179:488e
33.121.72.143 0:0:0:0:0:ffff:2179:488f
33.121.72.144 0:0:0:0:0:ffff:2179:4890
33.121.72.145 0:0:0:0:0:ffff:2179:4891
33.121.72.146 0:0:0:0:0:ffff:2179:4892
33.121.72.147 0:0:0:0:0:ffff:2179:4893
33.121.72.148 0:0:0:0:0:ffff:2179:4894
33.121.72.149 0:0:0:0:0:ffff:2179:4895
33.121.72.150 0:0:0:0:0:ffff:2179:4896
33.121.72.151 0:0:0:0:0:ffff:2179:4897
33.121.72.152 0:0:0:0:0:ffff:2179:4898
33.121.72.153 0:0:0:0:0:ffff:2179:4899
33.121.72.154 0:0:0:0:0:ffff:2179:489a
33.121.72.155 0:0:0:0:0:ffff:2179:489b
33.121.72.156 0:0:0:0:0:ffff:2179:489c
33.121.72.157 0:0:0:0:0:ffff:2179:489d
33.121.72.158 0:0:0:0:0:ffff:2179:489e
33.121.72.159 0:0:0:0:0:ffff:2179:489f
33.121.72.160 0:0:0:0:0:ffff:2179:48a0
33.121.72.161 0:0:0:0:0:ffff:2179:48a1
33.121.72.162 0:0:0:0:0:ffff:2179:48a2
33.121.72.163 0:0:0:0:0:ffff:2179:48a3
33.121.72.164 0:0:0:0:0:ffff:2179:48a4
33.121.72.165 0:0:0:0:0:ffff:2179:48a5
33.121.72.166 0:0:0:0:0:ffff:2179:48a6
33.121.72.167 0:0:0:0:0:ffff:2179:48a7
33.121.72.168 0:0:0:0:0:ffff:2179:48a8
33.121.72.169 0:0:0:0:0:ffff:2179:48a9
33.121.72.170 0:0:0:0:0:ffff:2179:48aa
33.121.72.171 0:0:0:0:0:ffff:2179:48ab
33.121.72.172 0:0:0:0:0:ffff:2179:48ac
33.121.72.173 0:0:0:0:0:ffff:2179:48ad
33.121.72.174 0:0:0:0:0:ffff:2179:48ae
33.121.72.175 0:0:0:0:0:ffff:2179:48af
33.121.72.176 0:0:0:0:0:ffff:2179:48b0
33.121.72.177 0:0:0:0:0:ffff:2179:48b1
33.121.72.178 0:0:0:0:0:ffff:2179:48b2
33.121.72.179 0:0:0:0:0:ffff:2179:48b3
33.121.72.180 0:0:0:0:0:ffff:2179:48b4


33.121.72.181 0:0:0:0:0:ffff:2179:48b5
33.121.72.182 0:0:0:0:0:ffff:2179:48b6
33.121.72.183 0:0:0:0:0:ffff:2179:48b7
33.121.72.184 0:0:0:0:0:ffff:2179:48b8
33.121.72.185 0:0:0:0:0:ffff:2179:48b9
33.121.72.186 0:0:0:0:0:ffff:2179:48ba
33.121.72.187 0:0:0:0:0:ffff:2179:48bb
33.121.72.188 0:0:0:0:0:ffff:2179:48bc
33.121.72.189 0:0:0:0:0:ffff:2179:48bd
33.121.72.190 0:0:0:0:0:ffff:2179:48be
33.121.72.191 0:0:0:0:0:ffff:2179:48bf
33.121.72.192 0:0:0:0:0:ffff:2179:48c0
33.121.72.193 0:0:0:0:0:ffff:2179:48c1
33.121.72.194 0:0:0:0:0:ffff:2179:48c2
33.121.72.195 0:0:0:0:0:ffff:2179:48c3
33.121.72.196 0:0:0:0:0:ffff:2179:48c4
33.121.72.197 0:0:0:0:0:ffff:2179:48c5
33.121.72.198 0:0:0:0:0:ffff:2179:48c6
33.121.72.199 0:0:0:0:0:ffff:2179:48c7
33.121.72.200 0:0:0:0:0:ffff:2179:48c8
33.121.72.201 0:0:0:0:0:ffff:2179:48c9
33.121.72.202 0:0:0:0:0:ffff:2179:48ca
33.121.72.203 0:0:0:0:0:ffff:2179:48cb
33.121.72.204 0:0:0:0:0:ffff:2179:48cc
33.121.72.205 0:0:0:0:0:ffff:2179:48cd
33.121.72.206 0:0:0:0:0:ffff:2179:48ce
33.121.72.207 0:0:0:0:0:ffff:2179:48cf
33.121.72.208 0:0:0:0:0:ffff:2179:48d0
33.121.72.209 0:0:0:0:0:ffff:2179:48d1
33.121.72.210 0:0:0:0:0:ffff:2179:48d2
33.121.72.211 0:0:0:0:0:ffff:2179:48d3
33.121.72.212 0:0:0:0:0:ffff:2179:48d4
33.121.72.213 0:0:0:0:0:ffff:2179:48d5
33.121.72.214 0:0:0:0:0:ffff:2179:48d6
33.121.72.215 0:0:0:0:0:ffff:2179:48d7
33.121.72.216 0:0:0:0:0:ffff:2179:48d8
33.121.72.217 0:0:0:0:0:ffff:2179:48d9
33.121.72.218 0:0:0:0:0:ffff:2179:48da
33.121.72.219 0:0:0:0:0:ffff:2179:48db
33.121.72.220 0:0:0:0:0:ffff:2179:48dc
33.121.72.221 0:0:0:0:0:ffff:2179:48dd
33.121.72.222 0:0:0:0:0:ffff:2179:48de
33.121.72.223 0:0:0:0:0:ffff:2179:48df
33.121.72.224 0:0:0:0:0:ffff:2179:48e0
33.121.72.225 0:0:0:0:0:ffff:2179:48e1
33.121.72.226 0:0:0:0:0:ffff:2179:48e2
33.121.72.227 0:0:0:0:0:ffff:2179:48e3
33.121.72.228 0:0:0:0:0:ffff:2179:48e4
33.121.72.229 0:0:0:0:0:ffff:2179:48e5
33.121.72.230 0:0:0:0:0:ffff:2179:48e6
33.121.72.231 0:0:0:0:0:ffff:2179:48e7
33.121.72.232 0:0:0:0:0:ffff:2179:48e8
33.121.72.233 0:0:0:0:0:ffff:2179:48e9
33.121.72.234 0:0:0:0:0:ffff:2179:48ea
33.121.72.235 0:0:0:0:0:ffff:2179:48eb
33.121.72.236 0:0:0:0:0:ffff:2179:48ec
33.121.72.237 0:0:0:0:0:ffff:2179:48ed
33.121.72.238 0:0:0:0:0:ffff:2179:48ee
33.121.72.239 0:0:0:0:0:ffff:2179:48ef
33.121.72.240 0:0:0:0:0:ffff:2179:48f0
33.121.72.241 0:0:0:0:0:ffff:2179:48f1
33.121.72.242 0:0:0:0:0:ffff:2179:48f2
33.121.72.243 0:0:0:0:0:ffff:2179:48f3
33.121.72.244 0:0:0:0:0:ffff:2179:48f4
33.121.72.245 0:0:0:0:0:ffff:2179:48f5
33.121.72.246 0:0:0:0:0:ffff:2179:48f6
33.121.72.247 0:0:0:0:0:ffff:2179:48f7
33.121.72.248 0:0:0:0:0:ffff:2179:48f8
33.121.72.249 0:0:0:0:0:ffff:2179:48f9
33.121.72.250 0:0:0:0:0:ffff:2179:48fa
33.121.72.251 0:0:0:0:0:ffff:2179:48fb
33.121.72.252 0:0:0:0:0:ffff:2179:48fc
33.121.72.253 0:0:0:0:0:ffff:2179:48fd
33.121.72.254 0:0:0:0:0:ffff:2179:48fe
33.121.72.255 0:0:0:0:0:ffff:2179:48ff


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.