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
15.57.73.1 0:0:0:0:0:ffff:f39:4901
15.57.73.2 0:0:0:0:0:ffff:f39:4902
15.57.73.3 0:0:0:0:0:ffff:f39:4903
15.57.73.4 0:0:0:0:0:ffff:f39:4904
15.57.73.5 0:0:0:0:0:ffff:f39:4905
15.57.73.6 0:0:0:0:0:ffff:f39:4906
15.57.73.7 0:0:0:0:0:ffff:f39:4907
15.57.73.8 0:0:0:0:0:ffff:f39:4908
15.57.73.9 0:0:0:0:0:ffff:f39:4909
15.57.73.10 0:0:0:0:0:ffff:f39:490a
15.57.73.11 0:0:0:0:0:ffff:f39:490b
15.57.73.12 0:0:0:0:0:ffff:f39:490c
15.57.73.13 0:0:0:0:0:ffff:f39:490d
15.57.73.14 0:0:0:0:0:ffff:f39:490e
15.57.73.15 0:0:0:0:0:ffff:f39:490f
15.57.73.16 0:0:0:0:0:ffff:f39:4910
15.57.73.17 0:0:0:0:0:ffff:f39:4911
15.57.73.18 0:0:0:0:0:ffff:f39:4912
15.57.73.19 0:0:0:0:0:ffff:f39:4913
15.57.73.20 0:0:0:0:0:ffff:f39:4914
15.57.73.21 0:0:0:0:0:ffff:f39:4915
15.57.73.22 0:0:0:0:0:ffff:f39:4916
15.57.73.23 0:0:0:0:0:ffff:f39:4917
15.57.73.24 0:0:0:0:0:ffff:f39:4918
15.57.73.25 0:0:0:0:0:ffff:f39:4919
15.57.73.26 0:0:0:0:0:ffff:f39:491a
15.57.73.27 0:0:0:0:0:ffff:f39:491b
15.57.73.28 0:0:0:0:0:ffff:f39:491c
15.57.73.29 0:0:0:0:0:ffff:f39:491d
15.57.73.30 0:0:0:0:0:ffff:f39:491e
15.57.73.31 0:0:0:0:0:ffff:f39:491f
15.57.73.32 0:0:0:0:0:ffff:f39:4920
15.57.73.33 0:0:0:0:0:ffff:f39:4921
15.57.73.34 0:0:0:0:0:ffff:f39:4922
15.57.73.35 0:0:0:0:0:ffff:f39:4923
15.57.73.36 0:0:0:0:0:ffff:f39:4924
15.57.73.37 0:0:0:0:0:ffff:f39:4925
15.57.73.38 0:0:0:0:0:ffff:f39:4926
15.57.73.39 0:0:0:0:0:ffff:f39:4927
15.57.73.40 0:0:0:0:0:ffff:f39:4928
15.57.73.41 0:0:0:0:0:ffff:f39:4929
15.57.73.42 0:0:0:0:0:ffff:f39:492a
15.57.73.43 0:0:0:0:0:ffff:f39:492b
15.57.73.44 0:0:0:0:0:ffff:f39:492c
15.57.73.45 0:0:0:0:0:ffff:f39:492d
15.57.73.46 0:0:0:0:0:ffff:f39:492e
15.57.73.47 0:0:0:0:0:ffff:f39:492f
15.57.73.48 0:0:0:0:0:ffff:f39:4930
15.57.73.49 0:0:0:0:0:ffff:f39:4931
15.57.73.50 0:0:0:0:0:ffff:f39:4932
15.57.73.51 0:0:0:0:0:ffff:f39:4933
15.57.73.52 0:0:0:0:0:ffff:f39:4934
15.57.73.53 0:0:0:0:0:ffff:f39:4935
15.57.73.54 0:0:0:0:0:ffff:f39:4936
15.57.73.55 0:0:0:0:0:ffff:f39:4937
15.57.73.56 0:0:0:0:0:ffff:f39:4938
15.57.73.57 0:0:0:0:0:ffff:f39:4939
15.57.73.58 0:0:0:0:0:ffff:f39:493a
15.57.73.59 0:0:0:0:0:ffff:f39:493b
15.57.73.60 0:0:0:0:0:ffff:f39:493c


15.57.73.61 0:0:0:0:0:ffff:f39:493d
15.57.73.62 0:0:0:0:0:ffff:f39:493e
15.57.73.63 0:0:0:0:0:ffff:f39:493f
15.57.73.64 0:0:0:0:0:ffff:f39:4940
15.57.73.65 0:0:0:0:0:ffff:f39:4941
15.57.73.66 0:0:0:0:0:ffff:f39:4942
15.57.73.67 0:0:0:0:0:ffff:f39:4943
15.57.73.68 0:0:0:0:0:ffff:f39:4944
15.57.73.69 0:0:0:0:0:ffff:f39:4945
15.57.73.70 0:0:0:0:0:ffff:f39:4946
15.57.73.71 0:0:0:0:0:ffff:f39:4947
15.57.73.72 0:0:0:0:0:ffff:f39:4948
15.57.73.73 0:0:0:0:0:ffff:f39:4949
15.57.73.74 0:0:0:0:0:ffff:f39:494a
15.57.73.75 0:0:0:0:0:ffff:f39:494b
15.57.73.76 0:0:0:0:0:ffff:f39:494c
15.57.73.77 0:0:0:0:0:ffff:f39:494d
15.57.73.78 0:0:0:0:0:ffff:f39:494e
15.57.73.79 0:0:0:0:0:ffff:f39:494f
15.57.73.80 0:0:0:0:0:ffff:f39:4950
15.57.73.81 0:0:0:0:0:ffff:f39:4951
15.57.73.82 0:0:0:0:0:ffff:f39:4952
15.57.73.83 0:0:0:0:0:ffff:f39:4953
15.57.73.84 0:0:0:0:0:ffff:f39:4954
15.57.73.85 0:0:0:0:0:ffff:f39:4955
15.57.73.86 0:0:0:0:0:ffff:f39:4956
15.57.73.87 0:0:0:0:0:ffff:f39:4957
15.57.73.88 0:0:0:0:0:ffff:f39:4958
15.57.73.89 0:0:0:0:0:ffff:f39:4959
15.57.73.90 0:0:0:0:0:ffff:f39:495a
15.57.73.91 0:0:0:0:0:ffff:f39:495b
15.57.73.92 0:0:0:0:0:ffff:f39:495c
15.57.73.93 0:0:0:0:0:ffff:f39:495d
15.57.73.94 0:0:0:0:0:ffff:f39:495e
15.57.73.95 0:0:0:0:0:ffff:f39:495f
15.57.73.96 0:0:0:0:0:ffff:f39:4960
15.57.73.97 0:0:0:0:0:ffff:f39:4961
15.57.73.98 0:0:0:0:0:ffff:f39:4962
15.57.73.99 0:0:0:0:0:ffff:f39:4963
15.57.73.100 0:0:0:0:0:ffff:f39:4964
15.57.73.101 0:0:0:0:0:ffff:f39:4965
15.57.73.102 0:0:0:0:0:ffff:f39:4966
15.57.73.103 0:0:0:0:0:ffff:f39:4967
15.57.73.104 0:0:0:0:0:ffff:f39:4968
15.57.73.105 0:0:0:0:0:ffff:f39:4969
15.57.73.106 0:0:0:0:0:ffff:f39:496a
15.57.73.107 0:0:0:0:0:ffff:f39:496b
15.57.73.108 0:0:0:0:0:ffff:f39:496c
15.57.73.109 0:0:0:0:0:ffff:f39:496d
15.57.73.110 0:0:0:0:0:ffff:f39:496e
15.57.73.111 0:0:0:0:0:ffff:f39:496f
15.57.73.112 0:0:0:0:0:ffff:f39:4970
15.57.73.113 0:0:0:0:0:ffff:f39:4971
15.57.73.114 0:0:0:0:0:ffff:f39:4972
15.57.73.115 0:0:0:0:0:ffff:f39:4973
15.57.73.116 0:0:0:0:0:ffff:f39:4974
15.57.73.117 0:0:0:0:0:ffff:f39:4975
15.57.73.118 0:0:0:0:0:ffff:f39:4976
15.57.73.119 0:0:0:0:0:ffff:f39:4977
15.57.73.120 0:0:0:0:0:ffff:f39:4978


15.57.73.121 0:0:0:0:0:ffff:f39:4979
15.57.73.122 0:0:0:0:0:ffff:f39:497a
15.57.73.123 0:0:0:0:0:ffff:f39:497b
15.57.73.124 0:0:0:0:0:ffff:f39:497c
15.57.73.125 0:0:0:0:0:ffff:f39:497d
15.57.73.126 0:0:0:0:0:ffff:f39:497e
15.57.73.127 0:0:0:0:0:ffff:f39:497f
15.57.73.128 0:0:0:0:0:ffff:f39:4980
15.57.73.129 0:0:0:0:0:ffff:f39:4981
15.57.73.130 0:0:0:0:0:ffff:f39:4982
15.57.73.131 0:0:0:0:0:ffff:f39:4983
15.57.73.132 0:0:0:0:0:ffff:f39:4984
15.57.73.133 0:0:0:0:0:ffff:f39:4985
15.57.73.134 0:0:0:0:0:ffff:f39:4986
15.57.73.135 0:0:0:0:0:ffff:f39:4987
15.57.73.136 0:0:0:0:0:ffff:f39:4988
15.57.73.137 0:0:0:0:0:ffff:f39:4989
15.57.73.138 0:0:0:0:0:ffff:f39:498a
15.57.73.139 0:0:0:0:0:ffff:f39:498b
15.57.73.140 0:0:0:0:0:ffff:f39:498c
15.57.73.141 0:0:0:0:0:ffff:f39:498d
15.57.73.142 0:0:0:0:0:ffff:f39:498e
15.57.73.143 0:0:0:0:0:ffff:f39:498f
15.57.73.144 0:0:0:0:0:ffff:f39:4990
15.57.73.145 0:0:0:0:0:ffff:f39:4991
15.57.73.146 0:0:0:0:0:ffff:f39:4992
15.57.73.147 0:0:0:0:0:ffff:f39:4993
15.57.73.148 0:0:0:0:0:ffff:f39:4994
15.57.73.149 0:0:0:0:0:ffff:f39:4995
15.57.73.150 0:0:0:0:0:ffff:f39:4996
15.57.73.151 0:0:0:0:0:ffff:f39:4997
15.57.73.152 0:0:0:0:0:ffff:f39:4998
15.57.73.153 0:0:0:0:0:ffff:f39:4999
15.57.73.154 0:0:0:0:0:ffff:f39:499a
15.57.73.155 0:0:0:0:0:ffff:f39:499b
15.57.73.156 0:0:0:0:0:ffff:f39:499c
15.57.73.157 0:0:0:0:0:ffff:f39:499d
15.57.73.158 0:0:0:0:0:ffff:f39:499e
15.57.73.159 0:0:0:0:0:ffff:f39:499f
15.57.73.160 0:0:0:0:0:ffff:f39:49a0
15.57.73.161 0:0:0:0:0:ffff:f39:49a1
15.57.73.162 0:0:0:0:0:ffff:f39:49a2
15.57.73.163 0:0:0:0:0:ffff:f39:49a3
15.57.73.164 0:0:0:0:0:ffff:f39:49a4
15.57.73.165 0:0:0:0:0:ffff:f39:49a5
15.57.73.166 0:0:0:0:0:ffff:f39:49a6
15.57.73.167 0:0:0:0:0:ffff:f39:49a7
15.57.73.168 0:0:0:0:0:ffff:f39:49a8
15.57.73.169 0:0:0:0:0:ffff:f39:49a9
15.57.73.170 0:0:0:0:0:ffff:f39:49aa
15.57.73.171 0:0:0:0:0:ffff:f39:49ab
15.57.73.172 0:0:0:0:0:ffff:f39:49ac
15.57.73.173 0:0:0:0:0:ffff:f39:49ad
15.57.73.174 0:0:0:0:0:ffff:f39:49ae
15.57.73.175 0:0:0:0:0:ffff:f39:49af
15.57.73.176 0:0:0:0:0:ffff:f39:49b0
15.57.73.177 0:0:0:0:0:ffff:f39:49b1
15.57.73.178 0:0:0:0:0:ffff:f39:49b2
15.57.73.179 0:0:0:0:0:ffff:f39:49b3
15.57.73.180 0:0:0:0:0:ffff:f39:49b4


15.57.73.181 0:0:0:0:0:ffff:f39:49b5
15.57.73.182 0:0:0:0:0:ffff:f39:49b6
15.57.73.183 0:0:0:0:0:ffff:f39:49b7
15.57.73.184 0:0:0:0:0:ffff:f39:49b8
15.57.73.185 0:0:0:0:0:ffff:f39:49b9
15.57.73.186 0:0:0:0:0:ffff:f39:49ba
15.57.73.187 0:0:0:0:0:ffff:f39:49bb
15.57.73.188 0:0:0:0:0:ffff:f39:49bc
15.57.73.189 0:0:0:0:0:ffff:f39:49bd
15.57.73.190 0:0:0:0:0:ffff:f39:49be
15.57.73.191 0:0:0:0:0:ffff:f39:49bf
15.57.73.192 0:0:0:0:0:ffff:f39:49c0
15.57.73.193 0:0:0:0:0:ffff:f39:49c1
15.57.73.194 0:0:0:0:0:ffff:f39:49c2
15.57.73.195 0:0:0:0:0:ffff:f39:49c3
15.57.73.196 0:0:0:0:0:ffff:f39:49c4
15.57.73.197 0:0:0:0:0:ffff:f39:49c5
15.57.73.198 0:0:0:0:0:ffff:f39:49c6
15.57.73.199 0:0:0:0:0:ffff:f39:49c7
15.57.73.200 0:0:0:0:0:ffff:f39:49c8
15.57.73.201 0:0:0:0:0:ffff:f39:49c9
15.57.73.202 0:0:0:0:0:ffff:f39:49ca
15.57.73.203 0:0:0:0:0:ffff:f39:49cb
15.57.73.204 0:0:0:0:0:ffff:f39:49cc
15.57.73.205 0:0:0:0:0:ffff:f39:49cd
15.57.73.206 0:0:0:0:0:ffff:f39:49ce
15.57.73.207 0:0:0:0:0:ffff:f39:49cf
15.57.73.208 0:0:0:0:0:ffff:f39:49d0
15.57.73.209 0:0:0:0:0:ffff:f39:49d1
15.57.73.210 0:0:0:0:0:ffff:f39:49d2
15.57.73.211 0:0:0:0:0:ffff:f39:49d3
15.57.73.212 0:0:0:0:0:ffff:f39:49d4
15.57.73.213 0:0:0:0:0:ffff:f39:49d5
15.57.73.214 0:0:0:0:0:ffff:f39:49d6
15.57.73.215 0:0:0:0:0:ffff:f39:49d7
15.57.73.216 0:0:0:0:0:ffff:f39:49d8
15.57.73.217 0:0:0:0:0:ffff:f39:49d9
15.57.73.218 0:0:0:0:0:ffff:f39:49da
15.57.73.219 0:0:0:0:0:ffff:f39:49db
15.57.73.220 0:0:0:0:0:ffff:f39:49dc
15.57.73.221 0:0:0:0:0:ffff:f39:49dd
15.57.73.222 0:0:0:0:0:ffff:f39:49de
15.57.73.223 0:0:0:0:0:ffff:f39:49df
15.57.73.224 0:0:0:0:0:ffff:f39:49e0
15.57.73.225 0:0:0:0:0:ffff:f39:49e1
15.57.73.226 0:0:0:0:0:ffff:f39:49e2
15.57.73.227 0:0:0:0:0:ffff:f39:49e3
15.57.73.228 0:0:0:0:0:ffff:f39:49e4
15.57.73.229 0:0:0:0:0:ffff:f39:49e5
15.57.73.230 0:0:0:0:0:ffff:f39:49e6
15.57.73.231 0:0:0:0:0:ffff:f39:49e7
15.57.73.232 0:0:0:0:0:ffff:f39:49e8
15.57.73.233 0:0:0:0:0:ffff:f39:49e9
15.57.73.234 0:0:0:0:0:ffff:f39:49ea
15.57.73.235 0:0:0:0:0:ffff:f39:49eb
15.57.73.236 0:0:0:0:0:ffff:f39:49ec
15.57.73.237 0:0:0:0:0:ffff:f39:49ed
15.57.73.238 0:0:0:0:0:ffff:f39:49ee
15.57.73.239 0:0:0:0:0:ffff:f39:49ef
15.57.73.240 0:0:0:0:0:ffff:f39:49f0
15.57.73.241 0:0:0:0:0:ffff:f39:49f1
15.57.73.242 0:0:0:0:0:ffff:f39:49f2
15.57.73.243 0:0:0:0:0:ffff:f39:49f3
15.57.73.244 0:0:0:0:0:ffff:f39:49f4
15.57.73.245 0:0:0:0:0:ffff:f39:49f5
15.57.73.246 0:0:0:0:0:ffff:f39:49f6
15.57.73.247 0:0:0:0:0:ffff:f39:49f7
15.57.73.248 0:0:0:0:0:ffff:f39:49f8
15.57.73.249 0:0:0:0:0:ffff:f39:49f9
15.57.73.250 0:0:0:0:0:ffff:f39:49fa
15.57.73.251 0:0:0:0:0:ffff:f39:49fb
15.57.73.252 0:0:0:0:0:ffff:f39:49fc
15.57.73.253 0:0:0:0:0:ffff:f39:49fd
15.57.73.254 0:0:0:0:0:ffff:f39:49fe
15.57.73.255 0:0:0:0:0:ffff:f39:49ff


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.