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
91.57.71.1 0:0:0:0:0:ffff:5b39:4701
91.57.71.2 0:0:0:0:0:ffff:5b39:4702
91.57.71.3 0:0:0:0:0:ffff:5b39:4703
91.57.71.4 0:0:0:0:0:ffff:5b39:4704
91.57.71.5 0:0:0:0:0:ffff:5b39:4705
91.57.71.6 0:0:0:0:0:ffff:5b39:4706
91.57.71.7 0:0:0:0:0:ffff:5b39:4707
91.57.71.8 0:0:0:0:0:ffff:5b39:4708
91.57.71.9 0:0:0:0:0:ffff:5b39:4709
91.57.71.10 0:0:0:0:0:ffff:5b39:470a
91.57.71.11 0:0:0:0:0:ffff:5b39:470b
91.57.71.12 0:0:0:0:0:ffff:5b39:470c
91.57.71.13 0:0:0:0:0:ffff:5b39:470d
91.57.71.14 0:0:0:0:0:ffff:5b39:470e
91.57.71.15 0:0:0:0:0:ffff:5b39:470f
91.57.71.16 0:0:0:0:0:ffff:5b39:4710
91.57.71.17 0:0:0:0:0:ffff:5b39:4711
91.57.71.18 0:0:0:0:0:ffff:5b39:4712
91.57.71.19 0:0:0:0:0:ffff:5b39:4713
91.57.71.20 0:0:0:0:0:ffff:5b39:4714
91.57.71.21 0:0:0:0:0:ffff:5b39:4715
91.57.71.22 0:0:0:0:0:ffff:5b39:4716
91.57.71.23 0:0:0:0:0:ffff:5b39:4717
91.57.71.24 0:0:0:0:0:ffff:5b39:4718
91.57.71.25 0:0:0:0:0:ffff:5b39:4719
91.57.71.26 0:0:0:0:0:ffff:5b39:471a
91.57.71.27 0:0:0:0:0:ffff:5b39:471b
91.57.71.28 0:0:0:0:0:ffff:5b39:471c
91.57.71.29 0:0:0:0:0:ffff:5b39:471d
91.57.71.30 0:0:0:0:0:ffff:5b39:471e
91.57.71.31 0:0:0:0:0:ffff:5b39:471f
91.57.71.32 0:0:0:0:0:ffff:5b39:4720
91.57.71.33 0:0:0:0:0:ffff:5b39:4721
91.57.71.34 0:0:0:0:0:ffff:5b39:4722
91.57.71.35 0:0:0:0:0:ffff:5b39:4723
91.57.71.36 0:0:0:0:0:ffff:5b39:4724
91.57.71.37 0:0:0:0:0:ffff:5b39:4725
91.57.71.38 0:0:0:0:0:ffff:5b39:4726
91.57.71.39 0:0:0:0:0:ffff:5b39:4727
91.57.71.40 0:0:0:0:0:ffff:5b39:4728
91.57.71.41 0:0:0:0:0:ffff:5b39:4729
91.57.71.42 0:0:0:0:0:ffff:5b39:472a
91.57.71.43 0:0:0:0:0:ffff:5b39:472b
91.57.71.44 0:0:0:0:0:ffff:5b39:472c
91.57.71.45 0:0:0:0:0:ffff:5b39:472d
91.57.71.46 0:0:0:0:0:ffff:5b39:472e
91.57.71.47 0:0:0:0:0:ffff:5b39:472f
91.57.71.48 0:0:0:0:0:ffff:5b39:4730
91.57.71.49 0:0:0:0:0:ffff:5b39:4731
91.57.71.50 0:0:0:0:0:ffff:5b39:4732
91.57.71.51 0:0:0:0:0:ffff:5b39:4733
91.57.71.52 0:0:0:0:0:ffff:5b39:4734
91.57.71.53 0:0:0:0:0:ffff:5b39:4735
91.57.71.54 0:0:0:0:0:ffff:5b39:4736
91.57.71.55 0:0:0:0:0:ffff:5b39:4737
91.57.71.56 0:0:0:0:0:ffff:5b39:4738
91.57.71.57 0:0:0:0:0:ffff:5b39:4739
91.57.71.58 0:0:0:0:0:ffff:5b39:473a
91.57.71.59 0:0:0:0:0:ffff:5b39:473b
91.57.71.60 0:0:0:0:0:ffff:5b39:473c


91.57.71.61 0:0:0:0:0:ffff:5b39:473d
91.57.71.62 0:0:0:0:0:ffff:5b39:473e
91.57.71.63 0:0:0:0:0:ffff:5b39:473f
91.57.71.64 0:0:0:0:0:ffff:5b39:4740
91.57.71.65 0:0:0:0:0:ffff:5b39:4741
91.57.71.66 0:0:0:0:0:ffff:5b39:4742
91.57.71.67 0:0:0:0:0:ffff:5b39:4743
91.57.71.68 0:0:0:0:0:ffff:5b39:4744
91.57.71.69 0:0:0:0:0:ffff:5b39:4745
91.57.71.70 0:0:0:0:0:ffff:5b39:4746
91.57.71.71 0:0:0:0:0:ffff:5b39:4747
91.57.71.72 0:0:0:0:0:ffff:5b39:4748
91.57.71.73 0:0:0:0:0:ffff:5b39:4749
91.57.71.74 0:0:0:0:0:ffff:5b39:474a
91.57.71.75 0:0:0:0:0:ffff:5b39:474b
91.57.71.76 0:0:0:0:0:ffff:5b39:474c
91.57.71.77 0:0:0:0:0:ffff:5b39:474d
91.57.71.78 0:0:0:0:0:ffff:5b39:474e
91.57.71.79 0:0:0:0:0:ffff:5b39:474f
91.57.71.80 0:0:0:0:0:ffff:5b39:4750
91.57.71.81 0:0:0:0:0:ffff:5b39:4751
91.57.71.82 0:0:0:0:0:ffff:5b39:4752
91.57.71.83 0:0:0:0:0:ffff:5b39:4753
91.57.71.84 0:0:0:0:0:ffff:5b39:4754
91.57.71.85 0:0:0:0:0:ffff:5b39:4755
91.57.71.86 0:0:0:0:0:ffff:5b39:4756
91.57.71.87 0:0:0:0:0:ffff:5b39:4757
91.57.71.88 0:0:0:0:0:ffff:5b39:4758
91.57.71.89 0:0:0:0:0:ffff:5b39:4759
91.57.71.90 0:0:0:0:0:ffff:5b39:475a
91.57.71.91 0:0:0:0:0:ffff:5b39:475b
91.57.71.92 0:0:0:0:0:ffff:5b39:475c
91.57.71.93 0:0:0:0:0:ffff:5b39:475d
91.57.71.94 0:0:0:0:0:ffff:5b39:475e
91.57.71.95 0:0:0:0:0:ffff:5b39:475f
91.57.71.96 0:0:0:0:0:ffff:5b39:4760
91.57.71.97 0:0:0:0:0:ffff:5b39:4761
91.57.71.98 0:0:0:0:0:ffff:5b39:4762
91.57.71.99 0:0:0:0:0:ffff:5b39:4763
91.57.71.100 0:0:0:0:0:ffff:5b39:4764
91.57.71.101 0:0:0:0:0:ffff:5b39:4765
91.57.71.102 0:0:0:0:0:ffff:5b39:4766
91.57.71.103 0:0:0:0:0:ffff:5b39:4767
91.57.71.104 0:0:0:0:0:ffff:5b39:4768
91.57.71.105 0:0:0:0:0:ffff:5b39:4769
91.57.71.106 0:0:0:0:0:ffff:5b39:476a
91.57.71.107 0:0:0:0:0:ffff:5b39:476b
91.57.71.108 0:0:0:0:0:ffff:5b39:476c
91.57.71.109 0:0:0:0:0:ffff:5b39:476d
91.57.71.110 0:0:0:0:0:ffff:5b39:476e
91.57.71.111 0:0:0:0:0:ffff:5b39:476f
91.57.71.112 0:0:0:0:0:ffff:5b39:4770
91.57.71.113 0:0:0:0:0:ffff:5b39:4771
91.57.71.114 0:0:0:0:0:ffff:5b39:4772
91.57.71.115 0:0:0:0:0:ffff:5b39:4773
91.57.71.116 0:0:0:0:0:ffff:5b39:4774
91.57.71.117 0:0:0:0:0:ffff:5b39:4775
91.57.71.118 0:0:0:0:0:ffff:5b39:4776
91.57.71.119 0:0:0:0:0:ffff:5b39:4777
91.57.71.120 0:0:0:0:0:ffff:5b39:4778


91.57.71.121 0:0:0:0:0:ffff:5b39:4779
91.57.71.122 0:0:0:0:0:ffff:5b39:477a
91.57.71.123 0:0:0:0:0:ffff:5b39:477b
91.57.71.124 0:0:0:0:0:ffff:5b39:477c
91.57.71.125 0:0:0:0:0:ffff:5b39:477d
91.57.71.126 0:0:0:0:0:ffff:5b39:477e
91.57.71.127 0:0:0:0:0:ffff:5b39:477f
91.57.71.128 0:0:0:0:0:ffff:5b39:4780
91.57.71.129 0:0:0:0:0:ffff:5b39:4781
91.57.71.130 0:0:0:0:0:ffff:5b39:4782
91.57.71.131 0:0:0:0:0:ffff:5b39:4783
91.57.71.132 0:0:0:0:0:ffff:5b39:4784
91.57.71.133 0:0:0:0:0:ffff:5b39:4785
91.57.71.134 0:0:0:0:0:ffff:5b39:4786
91.57.71.135 0:0:0:0:0:ffff:5b39:4787
91.57.71.136 0:0:0:0:0:ffff:5b39:4788
91.57.71.137 0:0:0:0:0:ffff:5b39:4789
91.57.71.138 0:0:0:0:0:ffff:5b39:478a
91.57.71.139 0:0:0:0:0:ffff:5b39:478b
91.57.71.140 0:0:0:0:0:ffff:5b39:478c
91.57.71.141 0:0:0:0:0:ffff:5b39:478d
91.57.71.142 0:0:0:0:0:ffff:5b39:478e
91.57.71.143 0:0:0:0:0:ffff:5b39:478f
91.57.71.144 0:0:0:0:0:ffff:5b39:4790
91.57.71.145 0:0:0:0:0:ffff:5b39:4791
91.57.71.146 0:0:0:0:0:ffff:5b39:4792
91.57.71.147 0:0:0:0:0:ffff:5b39:4793
91.57.71.148 0:0:0:0:0:ffff:5b39:4794
91.57.71.149 0:0:0:0:0:ffff:5b39:4795
91.57.71.150 0:0:0:0:0:ffff:5b39:4796
91.57.71.151 0:0:0:0:0:ffff:5b39:4797
91.57.71.152 0:0:0:0:0:ffff:5b39:4798
91.57.71.153 0:0:0:0:0:ffff:5b39:4799
91.57.71.154 0:0:0:0:0:ffff:5b39:479a
91.57.71.155 0:0:0:0:0:ffff:5b39:479b
91.57.71.156 0:0:0:0:0:ffff:5b39:479c
91.57.71.157 0:0:0:0:0:ffff:5b39:479d
91.57.71.158 0:0:0:0:0:ffff:5b39:479e
91.57.71.159 0:0:0:0:0:ffff:5b39:479f
91.57.71.160 0:0:0:0:0:ffff:5b39:47a0
91.57.71.161 0:0:0:0:0:ffff:5b39:47a1
91.57.71.162 0:0:0:0:0:ffff:5b39:47a2
91.57.71.163 0:0:0:0:0:ffff:5b39:47a3
91.57.71.164 0:0:0:0:0:ffff:5b39:47a4
91.57.71.165 0:0:0:0:0:ffff:5b39:47a5
91.57.71.166 0:0:0:0:0:ffff:5b39:47a6
91.57.71.167 0:0:0:0:0:ffff:5b39:47a7
91.57.71.168 0:0:0:0:0:ffff:5b39:47a8
91.57.71.169 0:0:0:0:0:ffff:5b39:47a9
91.57.71.170 0:0:0:0:0:ffff:5b39:47aa
91.57.71.171 0:0:0:0:0:ffff:5b39:47ab
91.57.71.172 0:0:0:0:0:ffff:5b39:47ac
91.57.71.173 0:0:0:0:0:ffff:5b39:47ad
91.57.71.174 0:0:0:0:0:ffff:5b39:47ae
91.57.71.175 0:0:0:0:0:ffff:5b39:47af
91.57.71.176 0:0:0:0:0:ffff:5b39:47b0
91.57.71.177 0:0:0:0:0:ffff:5b39:47b1
91.57.71.178 0:0:0:0:0:ffff:5b39:47b2
91.57.71.179 0:0:0:0:0:ffff:5b39:47b3
91.57.71.180 0:0:0:0:0:ffff:5b39:47b4


91.57.71.181 0:0:0:0:0:ffff:5b39:47b5
91.57.71.182 0:0:0:0:0:ffff:5b39:47b6
91.57.71.183 0:0:0:0:0:ffff:5b39:47b7
91.57.71.184 0:0:0:0:0:ffff:5b39:47b8
91.57.71.185 0:0:0:0:0:ffff:5b39:47b9
91.57.71.186 0:0:0:0:0:ffff:5b39:47ba
91.57.71.187 0:0:0:0:0:ffff:5b39:47bb
91.57.71.188 0:0:0:0:0:ffff:5b39:47bc
91.57.71.189 0:0:0:0:0:ffff:5b39:47bd
91.57.71.190 0:0:0:0:0:ffff:5b39:47be
91.57.71.191 0:0:0:0:0:ffff:5b39:47bf
91.57.71.192 0:0:0:0:0:ffff:5b39:47c0
91.57.71.193 0:0:0:0:0:ffff:5b39:47c1
91.57.71.194 0:0:0:0:0:ffff:5b39:47c2
91.57.71.195 0:0:0:0:0:ffff:5b39:47c3
91.57.71.196 0:0:0:0:0:ffff:5b39:47c4
91.57.71.197 0:0:0:0:0:ffff:5b39:47c5
91.57.71.198 0:0:0:0:0:ffff:5b39:47c6
91.57.71.199 0:0:0:0:0:ffff:5b39:47c7
91.57.71.200 0:0:0:0:0:ffff:5b39:47c8
91.57.71.201 0:0:0:0:0:ffff:5b39:47c9
91.57.71.202 0:0:0:0:0:ffff:5b39:47ca
91.57.71.203 0:0:0:0:0:ffff:5b39:47cb
91.57.71.204 0:0:0:0:0:ffff:5b39:47cc
91.57.71.205 0:0:0:0:0:ffff:5b39:47cd
91.57.71.206 0:0:0:0:0:ffff:5b39:47ce
91.57.71.207 0:0:0:0:0:ffff:5b39:47cf
91.57.71.208 0:0:0:0:0:ffff:5b39:47d0
91.57.71.209 0:0:0:0:0:ffff:5b39:47d1
91.57.71.210 0:0:0:0:0:ffff:5b39:47d2
91.57.71.211 0:0:0:0:0:ffff:5b39:47d3
91.57.71.212 0:0:0:0:0:ffff:5b39:47d4
91.57.71.213 0:0:0:0:0:ffff:5b39:47d5
91.57.71.214 0:0:0:0:0:ffff:5b39:47d6
91.57.71.215 0:0:0:0:0:ffff:5b39:47d7
91.57.71.216 0:0:0:0:0:ffff:5b39:47d8
91.57.71.217 0:0:0:0:0:ffff:5b39:47d9
91.57.71.218 0:0:0:0:0:ffff:5b39:47da
91.57.71.219 0:0:0:0:0:ffff:5b39:47db
91.57.71.220 0:0:0:0:0:ffff:5b39:47dc
91.57.71.221 0:0:0:0:0:ffff:5b39:47dd
91.57.71.222 0:0:0:0:0:ffff:5b39:47de
91.57.71.223 0:0:0:0:0:ffff:5b39:47df
91.57.71.224 0:0:0:0:0:ffff:5b39:47e0
91.57.71.225 0:0:0:0:0:ffff:5b39:47e1
91.57.71.226 0:0:0:0:0:ffff:5b39:47e2
91.57.71.227 0:0:0:0:0:ffff:5b39:47e3
91.57.71.228 0:0:0:0:0:ffff:5b39:47e4
91.57.71.229 0:0:0:0:0:ffff:5b39:47e5
91.57.71.230 0:0:0:0:0:ffff:5b39:47e6
91.57.71.231 0:0:0:0:0:ffff:5b39:47e7
91.57.71.232 0:0:0:0:0:ffff:5b39:47e8
91.57.71.233 0:0:0:0:0:ffff:5b39:47e9
91.57.71.234 0:0:0:0:0:ffff:5b39:47ea
91.57.71.235 0:0:0:0:0:ffff:5b39:47eb
91.57.71.236 0:0:0:0:0:ffff:5b39:47ec
91.57.71.237 0:0:0:0:0:ffff:5b39:47ed
91.57.71.238 0:0:0:0:0:ffff:5b39:47ee
91.57.71.239 0:0:0:0:0:ffff:5b39:47ef
91.57.71.240 0:0:0:0:0:ffff:5b39:47f0
91.57.71.241 0:0:0:0:0:ffff:5b39:47f1
91.57.71.242 0:0:0:0:0:ffff:5b39:47f2
91.57.71.243 0:0:0:0:0:ffff:5b39:47f3
91.57.71.244 0:0:0:0:0:ffff:5b39:47f4
91.57.71.245 0:0:0:0:0:ffff:5b39:47f5
91.57.71.246 0:0:0:0:0:ffff:5b39:47f6
91.57.71.247 0:0:0:0:0:ffff:5b39:47f7
91.57.71.248 0:0:0:0:0:ffff:5b39:47f8
91.57.71.249 0:0:0:0:0:ffff:5b39:47f9
91.57.71.250 0:0:0:0:0:ffff:5b39:47fa
91.57.71.251 0:0:0:0:0:ffff:5b39:47fb
91.57.71.252 0:0:0:0:0:ffff:5b39:47fc
91.57.71.253 0:0:0:0:0:ffff:5b39:47fd
91.57.71.254 0:0:0:0:0:ffff:5b39:47fe
91.57.71.255 0:0:0:0:0:ffff:5b39:47ff


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.