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
219.72.73.1 0:0:0:0:0:ffff:db48:4901
219.72.73.2 0:0:0:0:0:ffff:db48:4902
219.72.73.3 0:0:0:0:0:ffff:db48:4903
219.72.73.4 0:0:0:0:0:ffff:db48:4904
219.72.73.5 0:0:0:0:0:ffff:db48:4905
219.72.73.6 0:0:0:0:0:ffff:db48:4906
219.72.73.7 0:0:0:0:0:ffff:db48:4907
219.72.73.8 0:0:0:0:0:ffff:db48:4908
219.72.73.9 0:0:0:0:0:ffff:db48:4909
219.72.73.10 0:0:0:0:0:ffff:db48:490a
219.72.73.11 0:0:0:0:0:ffff:db48:490b
219.72.73.12 0:0:0:0:0:ffff:db48:490c
219.72.73.13 0:0:0:0:0:ffff:db48:490d
219.72.73.14 0:0:0:0:0:ffff:db48:490e
219.72.73.15 0:0:0:0:0:ffff:db48:490f
219.72.73.16 0:0:0:0:0:ffff:db48:4910
219.72.73.17 0:0:0:0:0:ffff:db48:4911
219.72.73.18 0:0:0:0:0:ffff:db48:4912
219.72.73.19 0:0:0:0:0:ffff:db48:4913
219.72.73.20 0:0:0:0:0:ffff:db48:4914
219.72.73.21 0:0:0:0:0:ffff:db48:4915
219.72.73.22 0:0:0:0:0:ffff:db48:4916
219.72.73.23 0:0:0:0:0:ffff:db48:4917
219.72.73.24 0:0:0:0:0:ffff:db48:4918
219.72.73.25 0:0:0:0:0:ffff:db48:4919
219.72.73.26 0:0:0:0:0:ffff:db48:491a
219.72.73.27 0:0:0:0:0:ffff:db48:491b
219.72.73.28 0:0:0:0:0:ffff:db48:491c
219.72.73.29 0:0:0:0:0:ffff:db48:491d
219.72.73.30 0:0:0:0:0:ffff:db48:491e
219.72.73.31 0:0:0:0:0:ffff:db48:491f
219.72.73.32 0:0:0:0:0:ffff:db48:4920
219.72.73.33 0:0:0:0:0:ffff:db48:4921
219.72.73.34 0:0:0:0:0:ffff:db48:4922
219.72.73.35 0:0:0:0:0:ffff:db48:4923
219.72.73.36 0:0:0:0:0:ffff:db48:4924
219.72.73.37 0:0:0:0:0:ffff:db48:4925
219.72.73.38 0:0:0:0:0:ffff:db48:4926
219.72.73.39 0:0:0:0:0:ffff:db48:4927
219.72.73.40 0:0:0:0:0:ffff:db48:4928
219.72.73.41 0:0:0:0:0:ffff:db48:4929
219.72.73.42 0:0:0:0:0:ffff:db48:492a
219.72.73.43 0:0:0:0:0:ffff:db48:492b
219.72.73.44 0:0:0:0:0:ffff:db48:492c
219.72.73.45 0:0:0:0:0:ffff:db48:492d
219.72.73.46 0:0:0:0:0:ffff:db48:492e
219.72.73.47 0:0:0:0:0:ffff:db48:492f
219.72.73.48 0:0:0:0:0:ffff:db48:4930
219.72.73.49 0:0:0:0:0:ffff:db48:4931
219.72.73.50 0:0:0:0:0:ffff:db48:4932
219.72.73.51 0:0:0:0:0:ffff:db48:4933
219.72.73.52 0:0:0:0:0:ffff:db48:4934
219.72.73.53 0:0:0:0:0:ffff:db48:4935
219.72.73.54 0:0:0:0:0:ffff:db48:4936
219.72.73.55 0:0:0:0:0:ffff:db48:4937
219.72.73.56 0:0:0:0:0:ffff:db48:4938
219.72.73.57 0:0:0:0:0:ffff:db48:4939
219.72.73.58 0:0:0:0:0:ffff:db48:493a
219.72.73.59 0:0:0:0:0:ffff:db48:493b
219.72.73.60 0:0:0:0:0:ffff:db48:493c


219.72.73.61 0:0:0:0:0:ffff:db48:493d
219.72.73.62 0:0:0:0:0:ffff:db48:493e
219.72.73.63 0:0:0:0:0:ffff:db48:493f
219.72.73.64 0:0:0:0:0:ffff:db48:4940
219.72.73.65 0:0:0:0:0:ffff:db48:4941
219.72.73.66 0:0:0:0:0:ffff:db48:4942
219.72.73.67 0:0:0:0:0:ffff:db48:4943
219.72.73.68 0:0:0:0:0:ffff:db48:4944
219.72.73.69 0:0:0:0:0:ffff:db48:4945
219.72.73.70 0:0:0:0:0:ffff:db48:4946
219.72.73.71 0:0:0:0:0:ffff:db48:4947
219.72.73.72 0:0:0:0:0:ffff:db48:4948
219.72.73.73 0:0:0:0:0:ffff:db48:4949
219.72.73.74 0:0:0:0:0:ffff:db48:494a
219.72.73.75 0:0:0:0:0:ffff:db48:494b
219.72.73.76 0:0:0:0:0:ffff:db48:494c
219.72.73.77 0:0:0:0:0:ffff:db48:494d
219.72.73.78 0:0:0:0:0:ffff:db48:494e
219.72.73.79 0:0:0:0:0:ffff:db48:494f
219.72.73.80 0:0:0:0:0:ffff:db48:4950
219.72.73.81 0:0:0:0:0:ffff:db48:4951
219.72.73.82 0:0:0:0:0:ffff:db48:4952
219.72.73.83 0:0:0:0:0:ffff:db48:4953
219.72.73.84 0:0:0:0:0:ffff:db48:4954
219.72.73.85 0:0:0:0:0:ffff:db48:4955
219.72.73.86 0:0:0:0:0:ffff:db48:4956
219.72.73.87 0:0:0:0:0:ffff:db48:4957
219.72.73.88 0:0:0:0:0:ffff:db48:4958
219.72.73.89 0:0:0:0:0:ffff:db48:4959
219.72.73.90 0:0:0:0:0:ffff:db48:495a
219.72.73.91 0:0:0:0:0:ffff:db48:495b
219.72.73.92 0:0:0:0:0:ffff:db48:495c
219.72.73.93 0:0:0:0:0:ffff:db48:495d
219.72.73.94 0:0:0:0:0:ffff:db48:495e
219.72.73.95 0:0:0:0:0:ffff:db48:495f
219.72.73.96 0:0:0:0:0:ffff:db48:4960
219.72.73.97 0:0:0:0:0:ffff:db48:4961
219.72.73.98 0:0:0:0:0:ffff:db48:4962
219.72.73.99 0:0:0:0:0:ffff:db48:4963
219.72.73.100 0:0:0:0:0:ffff:db48:4964
219.72.73.101 0:0:0:0:0:ffff:db48:4965
219.72.73.102 0:0:0:0:0:ffff:db48:4966
219.72.73.103 0:0:0:0:0:ffff:db48:4967
219.72.73.104 0:0:0:0:0:ffff:db48:4968
219.72.73.105 0:0:0:0:0:ffff:db48:4969
219.72.73.106 0:0:0:0:0:ffff:db48:496a
219.72.73.107 0:0:0:0:0:ffff:db48:496b
219.72.73.108 0:0:0:0:0:ffff:db48:496c
219.72.73.109 0:0:0:0:0:ffff:db48:496d
219.72.73.110 0:0:0:0:0:ffff:db48:496e
219.72.73.111 0:0:0:0:0:ffff:db48:496f
219.72.73.112 0:0:0:0:0:ffff:db48:4970
219.72.73.113 0:0:0:0:0:ffff:db48:4971
219.72.73.114 0:0:0:0:0:ffff:db48:4972
219.72.73.115 0:0:0:0:0:ffff:db48:4973
219.72.73.116 0:0:0:0:0:ffff:db48:4974
219.72.73.117 0:0:0:0:0:ffff:db48:4975
219.72.73.118 0:0:0:0:0:ffff:db48:4976
219.72.73.119 0:0:0:0:0:ffff:db48:4977
219.72.73.120 0:0:0:0:0:ffff:db48:4978


219.72.73.121 0:0:0:0:0:ffff:db48:4979
219.72.73.122 0:0:0:0:0:ffff:db48:497a
219.72.73.123 0:0:0:0:0:ffff:db48:497b
219.72.73.124 0:0:0:0:0:ffff:db48:497c
219.72.73.125 0:0:0:0:0:ffff:db48:497d
219.72.73.126 0:0:0:0:0:ffff:db48:497e
219.72.73.127 0:0:0:0:0:ffff:db48:497f
219.72.73.128 0:0:0:0:0:ffff:db48:4980
219.72.73.129 0:0:0:0:0:ffff:db48:4981
219.72.73.130 0:0:0:0:0:ffff:db48:4982
219.72.73.131 0:0:0:0:0:ffff:db48:4983
219.72.73.132 0:0:0:0:0:ffff:db48:4984
219.72.73.133 0:0:0:0:0:ffff:db48:4985
219.72.73.134 0:0:0:0:0:ffff:db48:4986
219.72.73.135 0:0:0:0:0:ffff:db48:4987
219.72.73.136 0:0:0:0:0:ffff:db48:4988
219.72.73.137 0:0:0:0:0:ffff:db48:4989
219.72.73.138 0:0:0:0:0:ffff:db48:498a
219.72.73.139 0:0:0:0:0:ffff:db48:498b
219.72.73.140 0:0:0:0:0:ffff:db48:498c
219.72.73.141 0:0:0:0:0:ffff:db48:498d
219.72.73.142 0:0:0:0:0:ffff:db48:498e
219.72.73.143 0:0:0:0:0:ffff:db48:498f
219.72.73.144 0:0:0:0:0:ffff:db48:4990
219.72.73.145 0:0:0:0:0:ffff:db48:4991
219.72.73.146 0:0:0:0:0:ffff:db48:4992
219.72.73.147 0:0:0:0:0:ffff:db48:4993
219.72.73.148 0:0:0:0:0:ffff:db48:4994
219.72.73.149 0:0:0:0:0:ffff:db48:4995
219.72.73.150 0:0:0:0:0:ffff:db48:4996
219.72.73.151 0:0:0:0:0:ffff:db48:4997
219.72.73.152 0:0:0:0:0:ffff:db48:4998
219.72.73.153 0:0:0:0:0:ffff:db48:4999
219.72.73.154 0:0:0:0:0:ffff:db48:499a
219.72.73.155 0:0:0:0:0:ffff:db48:499b
219.72.73.156 0:0:0:0:0:ffff:db48:499c
219.72.73.157 0:0:0:0:0:ffff:db48:499d
219.72.73.158 0:0:0:0:0:ffff:db48:499e
219.72.73.159 0:0:0:0:0:ffff:db48:499f
219.72.73.160 0:0:0:0:0:ffff:db48:49a0
219.72.73.161 0:0:0:0:0:ffff:db48:49a1
219.72.73.162 0:0:0:0:0:ffff:db48:49a2
219.72.73.163 0:0:0:0:0:ffff:db48:49a3
219.72.73.164 0:0:0:0:0:ffff:db48:49a4
219.72.73.165 0:0:0:0:0:ffff:db48:49a5
219.72.73.166 0:0:0:0:0:ffff:db48:49a6
219.72.73.167 0:0:0:0:0:ffff:db48:49a7
219.72.73.168 0:0:0:0:0:ffff:db48:49a8
219.72.73.169 0:0:0:0:0:ffff:db48:49a9
219.72.73.170 0:0:0:0:0:ffff:db48:49aa
219.72.73.171 0:0:0:0:0:ffff:db48:49ab
219.72.73.172 0:0:0:0:0:ffff:db48:49ac
219.72.73.173 0:0:0:0:0:ffff:db48:49ad
219.72.73.174 0:0:0:0:0:ffff:db48:49ae
219.72.73.175 0:0:0:0:0:ffff:db48:49af
219.72.73.176 0:0:0:0:0:ffff:db48:49b0
219.72.73.177 0:0:0:0:0:ffff:db48:49b1
219.72.73.178 0:0:0:0:0:ffff:db48:49b2
219.72.73.179 0:0:0:0:0:ffff:db48:49b3
219.72.73.180 0:0:0:0:0:ffff:db48:49b4


219.72.73.181 0:0:0:0:0:ffff:db48:49b5
219.72.73.182 0:0:0:0:0:ffff:db48:49b6
219.72.73.183 0:0:0:0:0:ffff:db48:49b7
219.72.73.184 0:0:0:0:0:ffff:db48:49b8
219.72.73.185 0:0:0:0:0:ffff:db48:49b9
219.72.73.186 0:0:0:0:0:ffff:db48:49ba
219.72.73.187 0:0:0:0:0:ffff:db48:49bb
219.72.73.188 0:0:0:0:0:ffff:db48:49bc
219.72.73.189 0:0:0:0:0:ffff:db48:49bd
219.72.73.190 0:0:0:0:0:ffff:db48:49be
219.72.73.191 0:0:0:0:0:ffff:db48:49bf
219.72.73.192 0:0:0:0:0:ffff:db48:49c0
219.72.73.193 0:0:0:0:0:ffff:db48:49c1
219.72.73.194 0:0:0:0:0:ffff:db48:49c2
219.72.73.195 0:0:0:0:0:ffff:db48:49c3
219.72.73.196 0:0:0:0:0:ffff:db48:49c4
219.72.73.197 0:0:0:0:0:ffff:db48:49c5
219.72.73.198 0:0:0:0:0:ffff:db48:49c6
219.72.73.199 0:0:0:0:0:ffff:db48:49c7
219.72.73.200 0:0:0:0:0:ffff:db48:49c8
219.72.73.201 0:0:0:0:0:ffff:db48:49c9
219.72.73.202 0:0:0:0:0:ffff:db48:49ca
219.72.73.203 0:0:0:0:0:ffff:db48:49cb
219.72.73.204 0:0:0:0:0:ffff:db48:49cc
219.72.73.205 0:0:0:0:0:ffff:db48:49cd
219.72.73.206 0:0:0:0:0:ffff:db48:49ce
219.72.73.207 0:0:0:0:0:ffff:db48:49cf
219.72.73.208 0:0:0:0:0:ffff:db48:49d0
219.72.73.209 0:0:0:0:0:ffff:db48:49d1
219.72.73.210 0:0:0:0:0:ffff:db48:49d2
219.72.73.211 0:0:0:0:0:ffff:db48:49d3
219.72.73.212 0:0:0:0:0:ffff:db48:49d4
219.72.73.213 0:0:0:0:0:ffff:db48:49d5
219.72.73.214 0:0:0:0:0:ffff:db48:49d6
219.72.73.215 0:0:0:0:0:ffff:db48:49d7
219.72.73.216 0:0:0:0:0:ffff:db48:49d8
219.72.73.217 0:0:0:0:0:ffff:db48:49d9
219.72.73.218 0:0:0:0:0:ffff:db48:49da
219.72.73.219 0:0:0:0:0:ffff:db48:49db
219.72.73.220 0:0:0:0:0:ffff:db48:49dc
219.72.73.221 0:0:0:0:0:ffff:db48:49dd
219.72.73.222 0:0:0:0:0:ffff:db48:49de
219.72.73.223 0:0:0:0:0:ffff:db48:49df
219.72.73.224 0:0:0:0:0:ffff:db48:49e0
219.72.73.225 0:0:0:0:0:ffff:db48:49e1
219.72.73.226 0:0:0:0:0:ffff:db48:49e2
219.72.73.227 0:0:0:0:0:ffff:db48:49e3
219.72.73.228 0:0:0:0:0:ffff:db48:49e4
219.72.73.229 0:0:0:0:0:ffff:db48:49e5
219.72.73.230 0:0:0:0:0:ffff:db48:49e6
219.72.73.231 0:0:0:0:0:ffff:db48:49e7
219.72.73.232 0:0:0:0:0:ffff:db48:49e8
219.72.73.233 0:0:0:0:0:ffff:db48:49e9
219.72.73.234 0:0:0:0:0:ffff:db48:49ea
219.72.73.235 0:0:0:0:0:ffff:db48:49eb
219.72.73.236 0:0:0:0:0:ffff:db48:49ec
219.72.73.237 0:0:0:0:0:ffff:db48:49ed
219.72.73.238 0:0:0:0:0:ffff:db48:49ee
219.72.73.239 0:0:0:0:0:ffff:db48:49ef
219.72.73.240 0:0:0:0:0:ffff:db48:49f0
219.72.73.241 0:0:0:0:0:ffff:db48:49f1
219.72.73.242 0:0:0:0:0:ffff:db48:49f2
219.72.73.243 0:0:0:0:0:ffff:db48:49f3
219.72.73.244 0:0:0:0:0:ffff:db48:49f4
219.72.73.245 0:0:0:0:0:ffff:db48:49f5
219.72.73.246 0:0:0:0:0:ffff:db48:49f6
219.72.73.247 0:0:0:0:0:ffff:db48:49f7
219.72.73.248 0:0:0:0:0:ffff:db48:49f8
219.72.73.249 0:0:0:0:0:ffff:db48:49f9
219.72.73.250 0:0:0:0:0:ffff:db48:49fa
219.72.73.251 0:0:0:0:0:ffff:db48:49fb
219.72.73.252 0:0:0:0:0:ffff:db48:49fc
219.72.73.253 0:0:0:0:0:ffff:db48:49fd
219.72.73.254 0:0:0:0:0:ffff:db48:49fe
219.72.73.255 0:0:0:0:0:ffff:db48:49ff


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.