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
21.113.57.1 0:0:0:0:0:ffff:1571:3901
21.113.57.2 0:0:0:0:0:ffff:1571:3902
21.113.57.3 0:0:0:0:0:ffff:1571:3903
21.113.57.4 0:0:0:0:0:ffff:1571:3904
21.113.57.5 0:0:0:0:0:ffff:1571:3905
21.113.57.6 0:0:0:0:0:ffff:1571:3906
21.113.57.7 0:0:0:0:0:ffff:1571:3907
21.113.57.8 0:0:0:0:0:ffff:1571:3908
21.113.57.9 0:0:0:0:0:ffff:1571:3909
21.113.57.10 0:0:0:0:0:ffff:1571:390a
21.113.57.11 0:0:0:0:0:ffff:1571:390b
21.113.57.12 0:0:0:0:0:ffff:1571:390c
21.113.57.13 0:0:0:0:0:ffff:1571:390d
21.113.57.14 0:0:0:0:0:ffff:1571:390e
21.113.57.15 0:0:0:0:0:ffff:1571:390f
21.113.57.16 0:0:0:0:0:ffff:1571:3910
21.113.57.17 0:0:0:0:0:ffff:1571:3911
21.113.57.18 0:0:0:0:0:ffff:1571:3912
21.113.57.19 0:0:0:0:0:ffff:1571:3913
21.113.57.20 0:0:0:0:0:ffff:1571:3914
21.113.57.21 0:0:0:0:0:ffff:1571:3915
21.113.57.22 0:0:0:0:0:ffff:1571:3916
21.113.57.23 0:0:0:0:0:ffff:1571:3917
21.113.57.24 0:0:0:0:0:ffff:1571:3918
21.113.57.25 0:0:0:0:0:ffff:1571:3919
21.113.57.26 0:0:0:0:0:ffff:1571:391a
21.113.57.27 0:0:0:0:0:ffff:1571:391b
21.113.57.28 0:0:0:0:0:ffff:1571:391c
21.113.57.29 0:0:0:0:0:ffff:1571:391d
21.113.57.30 0:0:0:0:0:ffff:1571:391e
21.113.57.31 0:0:0:0:0:ffff:1571:391f
21.113.57.32 0:0:0:0:0:ffff:1571:3920
21.113.57.33 0:0:0:0:0:ffff:1571:3921
21.113.57.34 0:0:0:0:0:ffff:1571:3922
21.113.57.35 0:0:0:0:0:ffff:1571:3923
21.113.57.36 0:0:0:0:0:ffff:1571:3924
21.113.57.37 0:0:0:0:0:ffff:1571:3925
21.113.57.38 0:0:0:0:0:ffff:1571:3926
21.113.57.39 0:0:0:0:0:ffff:1571:3927
21.113.57.40 0:0:0:0:0:ffff:1571:3928
21.113.57.41 0:0:0:0:0:ffff:1571:3929
21.113.57.42 0:0:0:0:0:ffff:1571:392a
21.113.57.43 0:0:0:0:0:ffff:1571:392b
21.113.57.44 0:0:0:0:0:ffff:1571:392c
21.113.57.45 0:0:0:0:0:ffff:1571:392d
21.113.57.46 0:0:0:0:0:ffff:1571:392e
21.113.57.47 0:0:0:0:0:ffff:1571:392f
21.113.57.48 0:0:0:0:0:ffff:1571:3930
21.113.57.49 0:0:0:0:0:ffff:1571:3931
21.113.57.50 0:0:0:0:0:ffff:1571:3932
21.113.57.51 0:0:0:0:0:ffff:1571:3933
21.113.57.52 0:0:0:0:0:ffff:1571:3934
21.113.57.53 0:0:0:0:0:ffff:1571:3935
21.113.57.54 0:0:0:0:0:ffff:1571:3936
21.113.57.55 0:0:0:0:0:ffff:1571:3937
21.113.57.56 0:0:0:0:0:ffff:1571:3938
21.113.57.57 0:0:0:0:0:ffff:1571:3939
21.113.57.58 0:0:0:0:0:ffff:1571:393a
21.113.57.59 0:0:0:0:0:ffff:1571:393b
21.113.57.60 0:0:0:0:0:ffff:1571:393c


21.113.57.61 0:0:0:0:0:ffff:1571:393d
21.113.57.62 0:0:0:0:0:ffff:1571:393e
21.113.57.63 0:0:0:0:0:ffff:1571:393f
21.113.57.64 0:0:0:0:0:ffff:1571:3940
21.113.57.65 0:0:0:0:0:ffff:1571:3941
21.113.57.66 0:0:0:0:0:ffff:1571:3942
21.113.57.67 0:0:0:0:0:ffff:1571:3943
21.113.57.68 0:0:0:0:0:ffff:1571:3944
21.113.57.69 0:0:0:0:0:ffff:1571:3945
21.113.57.70 0:0:0:0:0:ffff:1571:3946
21.113.57.71 0:0:0:0:0:ffff:1571:3947
21.113.57.72 0:0:0:0:0:ffff:1571:3948
21.113.57.73 0:0:0:0:0:ffff:1571:3949
21.113.57.74 0:0:0:0:0:ffff:1571:394a
21.113.57.75 0:0:0:0:0:ffff:1571:394b
21.113.57.76 0:0:0:0:0:ffff:1571:394c
21.113.57.77 0:0:0:0:0:ffff:1571:394d
21.113.57.78 0:0:0:0:0:ffff:1571:394e
21.113.57.79 0:0:0:0:0:ffff:1571:394f
21.113.57.80 0:0:0:0:0:ffff:1571:3950
21.113.57.81 0:0:0:0:0:ffff:1571:3951
21.113.57.82 0:0:0:0:0:ffff:1571:3952
21.113.57.83 0:0:0:0:0:ffff:1571:3953
21.113.57.84 0:0:0:0:0:ffff:1571:3954
21.113.57.85 0:0:0:0:0:ffff:1571:3955
21.113.57.86 0:0:0:0:0:ffff:1571:3956
21.113.57.87 0:0:0:0:0:ffff:1571:3957
21.113.57.88 0:0:0:0:0:ffff:1571:3958
21.113.57.89 0:0:0:0:0:ffff:1571:3959
21.113.57.90 0:0:0:0:0:ffff:1571:395a
21.113.57.91 0:0:0:0:0:ffff:1571:395b
21.113.57.92 0:0:0:0:0:ffff:1571:395c
21.113.57.93 0:0:0:0:0:ffff:1571:395d
21.113.57.94 0:0:0:0:0:ffff:1571:395e
21.113.57.95 0:0:0:0:0:ffff:1571:395f
21.113.57.96 0:0:0:0:0:ffff:1571:3960
21.113.57.97 0:0:0:0:0:ffff:1571:3961
21.113.57.98 0:0:0:0:0:ffff:1571:3962
21.113.57.99 0:0:0:0:0:ffff:1571:3963
21.113.57.100 0:0:0:0:0:ffff:1571:3964
21.113.57.101 0:0:0:0:0:ffff:1571:3965
21.113.57.102 0:0:0:0:0:ffff:1571:3966
21.113.57.103 0:0:0:0:0:ffff:1571:3967
21.113.57.104 0:0:0:0:0:ffff:1571:3968
21.113.57.105 0:0:0:0:0:ffff:1571:3969
21.113.57.106 0:0:0:0:0:ffff:1571:396a
21.113.57.107 0:0:0:0:0:ffff:1571:396b
21.113.57.108 0:0:0:0:0:ffff:1571:396c
21.113.57.109 0:0:0:0:0:ffff:1571:396d
21.113.57.110 0:0:0:0:0:ffff:1571:396e
21.113.57.111 0:0:0:0:0:ffff:1571:396f
21.113.57.112 0:0:0:0:0:ffff:1571:3970
21.113.57.113 0:0:0:0:0:ffff:1571:3971
21.113.57.114 0:0:0:0:0:ffff:1571:3972
21.113.57.115 0:0:0:0:0:ffff:1571:3973
21.113.57.116 0:0:0:0:0:ffff:1571:3974
21.113.57.117 0:0:0:0:0:ffff:1571:3975
21.113.57.118 0:0:0:0:0:ffff:1571:3976
21.113.57.119 0:0:0:0:0:ffff:1571:3977
21.113.57.120 0:0:0:0:0:ffff:1571:3978


21.113.57.121 0:0:0:0:0:ffff:1571:3979
21.113.57.122 0:0:0:0:0:ffff:1571:397a
21.113.57.123 0:0:0:0:0:ffff:1571:397b
21.113.57.124 0:0:0:0:0:ffff:1571:397c
21.113.57.125 0:0:0:0:0:ffff:1571:397d
21.113.57.126 0:0:0:0:0:ffff:1571:397e
21.113.57.127 0:0:0:0:0:ffff:1571:397f
21.113.57.128 0:0:0:0:0:ffff:1571:3980
21.113.57.129 0:0:0:0:0:ffff:1571:3981
21.113.57.130 0:0:0:0:0:ffff:1571:3982
21.113.57.131 0:0:0:0:0:ffff:1571:3983
21.113.57.132 0:0:0:0:0:ffff:1571:3984
21.113.57.133 0:0:0:0:0:ffff:1571:3985
21.113.57.134 0:0:0:0:0:ffff:1571:3986
21.113.57.135 0:0:0:0:0:ffff:1571:3987
21.113.57.136 0:0:0:0:0:ffff:1571:3988
21.113.57.137 0:0:0:0:0:ffff:1571:3989
21.113.57.138 0:0:0:0:0:ffff:1571:398a
21.113.57.139 0:0:0:0:0:ffff:1571:398b
21.113.57.140 0:0:0:0:0:ffff:1571:398c
21.113.57.141 0:0:0:0:0:ffff:1571:398d
21.113.57.142 0:0:0:0:0:ffff:1571:398e
21.113.57.143 0:0:0:0:0:ffff:1571:398f
21.113.57.144 0:0:0:0:0:ffff:1571:3990
21.113.57.145 0:0:0:0:0:ffff:1571:3991
21.113.57.146 0:0:0:0:0:ffff:1571:3992
21.113.57.147 0:0:0:0:0:ffff:1571:3993
21.113.57.148 0:0:0:0:0:ffff:1571:3994
21.113.57.149 0:0:0:0:0:ffff:1571:3995
21.113.57.150 0:0:0:0:0:ffff:1571:3996
21.113.57.151 0:0:0:0:0:ffff:1571:3997
21.113.57.152 0:0:0:0:0:ffff:1571:3998
21.113.57.153 0:0:0:0:0:ffff:1571:3999
21.113.57.154 0:0:0:0:0:ffff:1571:399a
21.113.57.155 0:0:0:0:0:ffff:1571:399b
21.113.57.156 0:0:0:0:0:ffff:1571:399c
21.113.57.157 0:0:0:0:0:ffff:1571:399d
21.113.57.158 0:0:0:0:0:ffff:1571:399e
21.113.57.159 0:0:0:0:0:ffff:1571:399f
21.113.57.160 0:0:0:0:0:ffff:1571:39a0
21.113.57.161 0:0:0:0:0:ffff:1571:39a1
21.113.57.162 0:0:0:0:0:ffff:1571:39a2
21.113.57.163 0:0:0:0:0:ffff:1571:39a3
21.113.57.164 0:0:0:0:0:ffff:1571:39a4
21.113.57.165 0:0:0:0:0:ffff:1571:39a5
21.113.57.166 0:0:0:0:0:ffff:1571:39a6
21.113.57.167 0:0:0:0:0:ffff:1571:39a7
21.113.57.168 0:0:0:0:0:ffff:1571:39a8
21.113.57.169 0:0:0:0:0:ffff:1571:39a9
21.113.57.170 0:0:0:0:0:ffff:1571:39aa
21.113.57.171 0:0:0:0:0:ffff:1571:39ab
21.113.57.172 0:0:0:0:0:ffff:1571:39ac
21.113.57.173 0:0:0:0:0:ffff:1571:39ad
21.113.57.174 0:0:0:0:0:ffff:1571:39ae
21.113.57.175 0:0:0:0:0:ffff:1571:39af
21.113.57.176 0:0:0:0:0:ffff:1571:39b0
21.113.57.177 0:0:0:0:0:ffff:1571:39b1
21.113.57.178 0:0:0:0:0:ffff:1571:39b2
21.113.57.179 0:0:0:0:0:ffff:1571:39b3
21.113.57.180 0:0:0:0:0:ffff:1571:39b4


21.113.57.181 0:0:0:0:0:ffff:1571:39b5
21.113.57.182 0:0:0:0:0:ffff:1571:39b6
21.113.57.183 0:0:0:0:0:ffff:1571:39b7
21.113.57.184 0:0:0:0:0:ffff:1571:39b8
21.113.57.185 0:0:0:0:0:ffff:1571:39b9
21.113.57.186 0:0:0:0:0:ffff:1571:39ba
21.113.57.187 0:0:0:0:0:ffff:1571:39bb
21.113.57.188 0:0:0:0:0:ffff:1571:39bc
21.113.57.189 0:0:0:0:0:ffff:1571:39bd
21.113.57.190 0:0:0:0:0:ffff:1571:39be
21.113.57.191 0:0:0:0:0:ffff:1571:39bf
21.113.57.192 0:0:0:0:0:ffff:1571:39c0
21.113.57.193 0:0:0:0:0:ffff:1571:39c1
21.113.57.194 0:0:0:0:0:ffff:1571:39c2
21.113.57.195 0:0:0:0:0:ffff:1571:39c3
21.113.57.196 0:0:0:0:0:ffff:1571:39c4
21.113.57.197 0:0:0:0:0:ffff:1571:39c5
21.113.57.198 0:0:0:0:0:ffff:1571:39c6
21.113.57.199 0:0:0:0:0:ffff:1571:39c7
21.113.57.200 0:0:0:0:0:ffff:1571:39c8
21.113.57.201 0:0:0:0:0:ffff:1571:39c9
21.113.57.202 0:0:0:0:0:ffff:1571:39ca
21.113.57.203 0:0:0:0:0:ffff:1571:39cb
21.113.57.204 0:0:0:0:0:ffff:1571:39cc
21.113.57.205 0:0:0:0:0:ffff:1571:39cd
21.113.57.206 0:0:0:0:0:ffff:1571:39ce
21.113.57.207 0:0:0:0:0:ffff:1571:39cf
21.113.57.208 0:0:0:0:0:ffff:1571:39d0
21.113.57.209 0:0:0:0:0:ffff:1571:39d1
21.113.57.210 0:0:0:0:0:ffff:1571:39d2
21.113.57.211 0:0:0:0:0:ffff:1571:39d3
21.113.57.212 0:0:0:0:0:ffff:1571:39d4
21.113.57.213 0:0:0:0:0:ffff:1571:39d5
21.113.57.214 0:0:0:0:0:ffff:1571:39d6
21.113.57.215 0:0:0:0:0:ffff:1571:39d7
21.113.57.216 0:0:0:0:0:ffff:1571:39d8
21.113.57.217 0:0:0:0:0:ffff:1571:39d9
21.113.57.218 0:0:0:0:0:ffff:1571:39da
21.113.57.219 0:0:0:0:0:ffff:1571:39db
21.113.57.220 0:0:0:0:0:ffff:1571:39dc
21.113.57.221 0:0:0:0:0:ffff:1571:39dd
21.113.57.222 0:0:0:0:0:ffff:1571:39de
21.113.57.223 0:0:0:0:0:ffff:1571:39df
21.113.57.224 0:0:0:0:0:ffff:1571:39e0
21.113.57.225 0:0:0:0:0:ffff:1571:39e1
21.113.57.226 0:0:0:0:0:ffff:1571:39e2
21.113.57.227 0:0:0:0:0:ffff:1571:39e3
21.113.57.228 0:0:0:0:0:ffff:1571:39e4
21.113.57.229 0:0:0:0:0:ffff:1571:39e5
21.113.57.230 0:0:0:0:0:ffff:1571:39e6
21.113.57.231 0:0:0:0:0:ffff:1571:39e7
21.113.57.232 0:0:0:0:0:ffff:1571:39e8
21.113.57.233 0:0:0:0:0:ffff:1571:39e9
21.113.57.234 0:0:0:0:0:ffff:1571:39ea
21.113.57.235 0:0:0:0:0:ffff:1571:39eb
21.113.57.236 0:0:0:0:0:ffff:1571:39ec
21.113.57.237 0:0:0:0:0:ffff:1571:39ed
21.113.57.238 0:0:0:0:0:ffff:1571:39ee
21.113.57.239 0:0:0:0:0:ffff:1571:39ef
21.113.57.240 0:0:0:0:0:ffff:1571:39f0
21.113.57.241 0:0:0:0:0:ffff:1571:39f1
21.113.57.242 0:0:0:0:0:ffff:1571:39f2
21.113.57.243 0:0:0:0:0:ffff:1571:39f3
21.113.57.244 0:0:0:0:0:ffff:1571:39f4
21.113.57.245 0:0:0:0:0:ffff:1571:39f5
21.113.57.246 0:0:0:0:0:ffff:1571:39f6
21.113.57.247 0:0:0:0:0:ffff:1571:39f7
21.113.57.248 0:0:0:0:0:ffff:1571:39f8
21.113.57.249 0:0:0:0:0:ffff:1571:39f9
21.113.57.250 0:0:0:0:0:ffff:1571:39fa
21.113.57.251 0:0:0:0:0:ffff:1571:39fb
21.113.57.252 0:0:0:0:0:ffff:1571:39fc
21.113.57.253 0:0:0:0:0:ffff:1571:39fd
21.113.57.254 0:0:0:0:0:ffff:1571:39fe
21.113.57.255 0:0:0:0:0:ffff:1571:39ff


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.