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
197.151.73.1 0:0:0:0:0:ffff:c597:4901
197.151.73.2 0:0:0:0:0:ffff:c597:4902
197.151.73.3 0:0:0:0:0:ffff:c597:4903
197.151.73.4 0:0:0:0:0:ffff:c597:4904
197.151.73.5 0:0:0:0:0:ffff:c597:4905
197.151.73.6 0:0:0:0:0:ffff:c597:4906
197.151.73.7 0:0:0:0:0:ffff:c597:4907
197.151.73.8 0:0:0:0:0:ffff:c597:4908
197.151.73.9 0:0:0:0:0:ffff:c597:4909
197.151.73.10 0:0:0:0:0:ffff:c597:490a
197.151.73.11 0:0:0:0:0:ffff:c597:490b
197.151.73.12 0:0:0:0:0:ffff:c597:490c
197.151.73.13 0:0:0:0:0:ffff:c597:490d
197.151.73.14 0:0:0:0:0:ffff:c597:490e
197.151.73.15 0:0:0:0:0:ffff:c597:490f
197.151.73.16 0:0:0:0:0:ffff:c597:4910
197.151.73.17 0:0:0:0:0:ffff:c597:4911
197.151.73.18 0:0:0:0:0:ffff:c597:4912
197.151.73.19 0:0:0:0:0:ffff:c597:4913
197.151.73.20 0:0:0:0:0:ffff:c597:4914
197.151.73.21 0:0:0:0:0:ffff:c597:4915
197.151.73.22 0:0:0:0:0:ffff:c597:4916
197.151.73.23 0:0:0:0:0:ffff:c597:4917
197.151.73.24 0:0:0:0:0:ffff:c597:4918
197.151.73.25 0:0:0:0:0:ffff:c597:4919
197.151.73.26 0:0:0:0:0:ffff:c597:491a
197.151.73.27 0:0:0:0:0:ffff:c597:491b
197.151.73.28 0:0:0:0:0:ffff:c597:491c
197.151.73.29 0:0:0:0:0:ffff:c597:491d
197.151.73.30 0:0:0:0:0:ffff:c597:491e
197.151.73.31 0:0:0:0:0:ffff:c597:491f
197.151.73.32 0:0:0:0:0:ffff:c597:4920
197.151.73.33 0:0:0:0:0:ffff:c597:4921
197.151.73.34 0:0:0:0:0:ffff:c597:4922
197.151.73.35 0:0:0:0:0:ffff:c597:4923
197.151.73.36 0:0:0:0:0:ffff:c597:4924
197.151.73.37 0:0:0:0:0:ffff:c597:4925
197.151.73.38 0:0:0:0:0:ffff:c597:4926
197.151.73.39 0:0:0:0:0:ffff:c597:4927
197.151.73.40 0:0:0:0:0:ffff:c597:4928
197.151.73.41 0:0:0:0:0:ffff:c597:4929
197.151.73.42 0:0:0:0:0:ffff:c597:492a
197.151.73.43 0:0:0:0:0:ffff:c597:492b
197.151.73.44 0:0:0:0:0:ffff:c597:492c
197.151.73.45 0:0:0:0:0:ffff:c597:492d
197.151.73.46 0:0:0:0:0:ffff:c597:492e
197.151.73.47 0:0:0:0:0:ffff:c597:492f
197.151.73.48 0:0:0:0:0:ffff:c597:4930
197.151.73.49 0:0:0:0:0:ffff:c597:4931
197.151.73.50 0:0:0:0:0:ffff:c597:4932
197.151.73.51 0:0:0:0:0:ffff:c597:4933
197.151.73.52 0:0:0:0:0:ffff:c597:4934
197.151.73.53 0:0:0:0:0:ffff:c597:4935
197.151.73.54 0:0:0:0:0:ffff:c597:4936
197.151.73.55 0:0:0:0:0:ffff:c597:4937
197.151.73.56 0:0:0:0:0:ffff:c597:4938
197.151.73.57 0:0:0:0:0:ffff:c597:4939
197.151.73.58 0:0:0:0:0:ffff:c597:493a
197.151.73.59 0:0:0:0:0:ffff:c597:493b
197.151.73.60 0:0:0:0:0:ffff:c597:493c


197.151.73.61 0:0:0:0:0:ffff:c597:493d
197.151.73.62 0:0:0:0:0:ffff:c597:493e
197.151.73.63 0:0:0:0:0:ffff:c597:493f
197.151.73.64 0:0:0:0:0:ffff:c597:4940
197.151.73.65 0:0:0:0:0:ffff:c597:4941
197.151.73.66 0:0:0:0:0:ffff:c597:4942
197.151.73.67 0:0:0:0:0:ffff:c597:4943
197.151.73.68 0:0:0:0:0:ffff:c597:4944
197.151.73.69 0:0:0:0:0:ffff:c597:4945
197.151.73.70 0:0:0:0:0:ffff:c597:4946
197.151.73.71 0:0:0:0:0:ffff:c597:4947
197.151.73.72 0:0:0:0:0:ffff:c597:4948
197.151.73.73 0:0:0:0:0:ffff:c597:4949
197.151.73.74 0:0:0:0:0:ffff:c597:494a
197.151.73.75 0:0:0:0:0:ffff:c597:494b
197.151.73.76 0:0:0:0:0:ffff:c597:494c
197.151.73.77 0:0:0:0:0:ffff:c597:494d
197.151.73.78 0:0:0:0:0:ffff:c597:494e
197.151.73.79 0:0:0:0:0:ffff:c597:494f
197.151.73.80 0:0:0:0:0:ffff:c597:4950
197.151.73.81 0:0:0:0:0:ffff:c597:4951
197.151.73.82 0:0:0:0:0:ffff:c597:4952
197.151.73.83 0:0:0:0:0:ffff:c597:4953
197.151.73.84 0:0:0:0:0:ffff:c597:4954
197.151.73.85 0:0:0:0:0:ffff:c597:4955
197.151.73.86 0:0:0:0:0:ffff:c597:4956
197.151.73.87 0:0:0:0:0:ffff:c597:4957
197.151.73.88 0:0:0:0:0:ffff:c597:4958
197.151.73.89 0:0:0:0:0:ffff:c597:4959
197.151.73.90 0:0:0:0:0:ffff:c597:495a
197.151.73.91 0:0:0:0:0:ffff:c597:495b
197.151.73.92 0:0:0:0:0:ffff:c597:495c
197.151.73.93 0:0:0:0:0:ffff:c597:495d
197.151.73.94 0:0:0:0:0:ffff:c597:495e
197.151.73.95 0:0:0:0:0:ffff:c597:495f
197.151.73.96 0:0:0:0:0:ffff:c597:4960
197.151.73.97 0:0:0:0:0:ffff:c597:4961
197.151.73.98 0:0:0:0:0:ffff:c597:4962
197.151.73.99 0:0:0:0:0:ffff:c597:4963
197.151.73.100 0:0:0:0:0:ffff:c597:4964
197.151.73.101 0:0:0:0:0:ffff:c597:4965
197.151.73.102 0:0:0:0:0:ffff:c597:4966
197.151.73.103 0:0:0:0:0:ffff:c597:4967
197.151.73.104 0:0:0:0:0:ffff:c597:4968
197.151.73.105 0:0:0:0:0:ffff:c597:4969
197.151.73.106 0:0:0:0:0:ffff:c597:496a
197.151.73.107 0:0:0:0:0:ffff:c597:496b
197.151.73.108 0:0:0:0:0:ffff:c597:496c
197.151.73.109 0:0:0:0:0:ffff:c597:496d
197.151.73.110 0:0:0:0:0:ffff:c597:496e
197.151.73.111 0:0:0:0:0:ffff:c597:496f
197.151.73.112 0:0:0:0:0:ffff:c597:4970
197.151.73.113 0:0:0:0:0:ffff:c597:4971
197.151.73.114 0:0:0:0:0:ffff:c597:4972
197.151.73.115 0:0:0:0:0:ffff:c597:4973
197.151.73.116 0:0:0:0:0:ffff:c597:4974
197.151.73.117 0:0:0:0:0:ffff:c597:4975
197.151.73.118 0:0:0:0:0:ffff:c597:4976
197.151.73.119 0:0:0:0:0:ffff:c597:4977
197.151.73.120 0:0:0:0:0:ffff:c597:4978


197.151.73.121 0:0:0:0:0:ffff:c597:4979
197.151.73.122 0:0:0:0:0:ffff:c597:497a
197.151.73.123 0:0:0:0:0:ffff:c597:497b
197.151.73.124 0:0:0:0:0:ffff:c597:497c
197.151.73.125 0:0:0:0:0:ffff:c597:497d
197.151.73.126 0:0:0:0:0:ffff:c597:497e
197.151.73.127 0:0:0:0:0:ffff:c597:497f
197.151.73.128 0:0:0:0:0:ffff:c597:4980
197.151.73.129 0:0:0:0:0:ffff:c597:4981
197.151.73.130 0:0:0:0:0:ffff:c597:4982
197.151.73.131 0:0:0:0:0:ffff:c597:4983
197.151.73.132 0:0:0:0:0:ffff:c597:4984
197.151.73.133 0:0:0:0:0:ffff:c597:4985
197.151.73.134 0:0:0:0:0:ffff:c597:4986
197.151.73.135 0:0:0:0:0:ffff:c597:4987
197.151.73.136 0:0:0:0:0:ffff:c597:4988
197.151.73.137 0:0:0:0:0:ffff:c597:4989
197.151.73.138 0:0:0:0:0:ffff:c597:498a
197.151.73.139 0:0:0:0:0:ffff:c597:498b
197.151.73.140 0:0:0:0:0:ffff:c597:498c
197.151.73.141 0:0:0:0:0:ffff:c597:498d
197.151.73.142 0:0:0:0:0:ffff:c597:498e
197.151.73.143 0:0:0:0:0:ffff:c597:498f
197.151.73.144 0:0:0:0:0:ffff:c597:4990
197.151.73.145 0:0:0:0:0:ffff:c597:4991
197.151.73.146 0:0:0:0:0:ffff:c597:4992
197.151.73.147 0:0:0:0:0:ffff:c597:4993
197.151.73.148 0:0:0:0:0:ffff:c597:4994
197.151.73.149 0:0:0:0:0:ffff:c597:4995
197.151.73.150 0:0:0:0:0:ffff:c597:4996
197.151.73.151 0:0:0:0:0:ffff:c597:4997
197.151.73.152 0:0:0:0:0:ffff:c597:4998
197.151.73.153 0:0:0:0:0:ffff:c597:4999
197.151.73.154 0:0:0:0:0:ffff:c597:499a
197.151.73.155 0:0:0:0:0:ffff:c597:499b
197.151.73.156 0:0:0:0:0:ffff:c597:499c
197.151.73.157 0:0:0:0:0:ffff:c597:499d
197.151.73.158 0:0:0:0:0:ffff:c597:499e
197.151.73.159 0:0:0:0:0:ffff:c597:499f
197.151.73.160 0:0:0:0:0:ffff:c597:49a0
197.151.73.161 0:0:0:0:0:ffff:c597:49a1
197.151.73.162 0:0:0:0:0:ffff:c597:49a2
197.151.73.163 0:0:0:0:0:ffff:c597:49a3
197.151.73.164 0:0:0:0:0:ffff:c597:49a4
197.151.73.165 0:0:0:0:0:ffff:c597:49a5
197.151.73.166 0:0:0:0:0:ffff:c597:49a6
197.151.73.167 0:0:0:0:0:ffff:c597:49a7
197.151.73.168 0:0:0:0:0:ffff:c597:49a8
197.151.73.169 0:0:0:0:0:ffff:c597:49a9
197.151.73.170 0:0:0:0:0:ffff:c597:49aa
197.151.73.171 0:0:0:0:0:ffff:c597:49ab
197.151.73.172 0:0:0:0:0:ffff:c597:49ac
197.151.73.173 0:0:0:0:0:ffff:c597:49ad
197.151.73.174 0:0:0:0:0:ffff:c597:49ae
197.151.73.175 0:0:0:0:0:ffff:c597:49af
197.151.73.176 0:0:0:0:0:ffff:c597:49b0
197.151.73.177 0:0:0:0:0:ffff:c597:49b1
197.151.73.178 0:0:0:0:0:ffff:c597:49b2
197.151.73.179 0:0:0:0:0:ffff:c597:49b3
197.151.73.180 0:0:0:0:0:ffff:c597:49b4


197.151.73.181 0:0:0:0:0:ffff:c597:49b5
197.151.73.182 0:0:0:0:0:ffff:c597:49b6
197.151.73.183 0:0:0:0:0:ffff:c597:49b7
197.151.73.184 0:0:0:0:0:ffff:c597:49b8
197.151.73.185 0:0:0:0:0:ffff:c597:49b9
197.151.73.186 0:0:0:0:0:ffff:c597:49ba
197.151.73.187 0:0:0:0:0:ffff:c597:49bb
197.151.73.188 0:0:0:0:0:ffff:c597:49bc
197.151.73.189 0:0:0:0:0:ffff:c597:49bd
197.151.73.190 0:0:0:0:0:ffff:c597:49be
197.151.73.191 0:0:0:0:0:ffff:c597:49bf
197.151.73.192 0:0:0:0:0:ffff:c597:49c0
197.151.73.193 0:0:0:0:0:ffff:c597:49c1
197.151.73.194 0:0:0:0:0:ffff:c597:49c2
197.151.73.195 0:0:0:0:0:ffff:c597:49c3
197.151.73.196 0:0:0:0:0:ffff:c597:49c4
197.151.73.197 0:0:0:0:0:ffff:c597:49c5
197.151.73.198 0:0:0:0:0:ffff:c597:49c6
197.151.73.199 0:0:0:0:0:ffff:c597:49c7
197.151.73.200 0:0:0:0:0:ffff:c597:49c8
197.151.73.201 0:0:0:0:0:ffff:c597:49c9
197.151.73.202 0:0:0:0:0:ffff:c597:49ca
197.151.73.203 0:0:0:0:0:ffff:c597:49cb
197.151.73.204 0:0:0:0:0:ffff:c597:49cc
197.151.73.205 0:0:0:0:0:ffff:c597:49cd
197.151.73.206 0:0:0:0:0:ffff:c597:49ce
197.151.73.207 0:0:0:0:0:ffff:c597:49cf
197.151.73.208 0:0:0:0:0:ffff:c597:49d0
197.151.73.209 0:0:0:0:0:ffff:c597:49d1
197.151.73.210 0:0:0:0:0:ffff:c597:49d2
197.151.73.211 0:0:0:0:0:ffff:c597:49d3
197.151.73.212 0:0:0:0:0:ffff:c597:49d4
197.151.73.213 0:0:0:0:0:ffff:c597:49d5
197.151.73.214 0:0:0:0:0:ffff:c597:49d6
197.151.73.215 0:0:0:0:0:ffff:c597:49d7
197.151.73.216 0:0:0:0:0:ffff:c597:49d8
197.151.73.217 0:0:0:0:0:ffff:c597:49d9
197.151.73.218 0:0:0:0:0:ffff:c597:49da
197.151.73.219 0:0:0:0:0:ffff:c597:49db
197.151.73.220 0:0:0:0:0:ffff:c597:49dc
197.151.73.221 0:0:0:0:0:ffff:c597:49dd
197.151.73.222 0:0:0:0:0:ffff:c597:49de
197.151.73.223 0:0:0:0:0:ffff:c597:49df
197.151.73.224 0:0:0:0:0:ffff:c597:49e0
197.151.73.225 0:0:0:0:0:ffff:c597:49e1
197.151.73.226 0:0:0:0:0:ffff:c597:49e2
197.151.73.227 0:0:0:0:0:ffff:c597:49e3
197.151.73.228 0:0:0:0:0:ffff:c597:49e4
197.151.73.229 0:0:0:0:0:ffff:c597:49e5
197.151.73.230 0:0:0:0:0:ffff:c597:49e6
197.151.73.231 0:0:0:0:0:ffff:c597:49e7
197.151.73.232 0:0:0:0:0:ffff:c597:49e8
197.151.73.233 0:0:0:0:0:ffff:c597:49e9
197.151.73.234 0:0:0:0:0:ffff:c597:49ea
197.151.73.235 0:0:0:0:0:ffff:c597:49eb
197.151.73.236 0:0:0:0:0:ffff:c597:49ec
197.151.73.237 0:0:0:0:0:ffff:c597:49ed
197.151.73.238 0:0:0:0:0:ffff:c597:49ee
197.151.73.239 0:0:0:0:0:ffff:c597:49ef
197.151.73.240 0:0:0:0:0:ffff:c597:49f0
197.151.73.241 0:0:0:0:0:ffff:c597:49f1
197.151.73.242 0:0:0:0:0:ffff:c597:49f2
197.151.73.243 0:0:0:0:0:ffff:c597:49f3
197.151.73.244 0:0:0:0:0:ffff:c597:49f4
197.151.73.245 0:0:0:0:0:ffff:c597:49f5
197.151.73.246 0:0:0:0:0:ffff:c597:49f6
197.151.73.247 0:0:0:0:0:ffff:c597:49f7
197.151.73.248 0:0:0:0:0:ffff:c597:49f8
197.151.73.249 0:0:0:0:0:ffff:c597:49f9
197.151.73.250 0:0:0:0:0:ffff:c597:49fa
197.151.73.251 0:0:0:0:0:ffff:c597:49fb
197.151.73.252 0:0:0:0:0:ffff:c597:49fc
197.151.73.253 0:0:0:0:0:ffff:c597:49fd
197.151.73.254 0:0:0:0:0:ffff:c597:49fe
197.151.73.255 0:0:0:0:0:ffff:c597:49ff


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.