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
91.71.38.1 0:0:0:0:0:ffff:5b47:2601
91.71.38.2 0:0:0:0:0:ffff:5b47:2602
91.71.38.3 0:0:0:0:0:ffff:5b47:2603
91.71.38.4 0:0:0:0:0:ffff:5b47:2604
91.71.38.5 0:0:0:0:0:ffff:5b47:2605
91.71.38.6 0:0:0:0:0:ffff:5b47:2606
91.71.38.7 0:0:0:0:0:ffff:5b47:2607
91.71.38.8 0:0:0:0:0:ffff:5b47:2608
91.71.38.9 0:0:0:0:0:ffff:5b47:2609
91.71.38.10 0:0:0:0:0:ffff:5b47:260a
91.71.38.11 0:0:0:0:0:ffff:5b47:260b
91.71.38.12 0:0:0:0:0:ffff:5b47:260c
91.71.38.13 0:0:0:0:0:ffff:5b47:260d
91.71.38.14 0:0:0:0:0:ffff:5b47:260e
91.71.38.15 0:0:0:0:0:ffff:5b47:260f
91.71.38.16 0:0:0:0:0:ffff:5b47:2610
91.71.38.17 0:0:0:0:0:ffff:5b47:2611
91.71.38.18 0:0:0:0:0:ffff:5b47:2612
91.71.38.19 0:0:0:0:0:ffff:5b47:2613
91.71.38.20 0:0:0:0:0:ffff:5b47:2614
91.71.38.21 0:0:0:0:0:ffff:5b47:2615
91.71.38.22 0:0:0:0:0:ffff:5b47:2616
91.71.38.23 0:0:0:0:0:ffff:5b47:2617
91.71.38.24 0:0:0:0:0:ffff:5b47:2618
91.71.38.25 0:0:0:0:0:ffff:5b47:2619
91.71.38.26 0:0:0:0:0:ffff:5b47:261a
91.71.38.27 0:0:0:0:0:ffff:5b47:261b
91.71.38.28 0:0:0:0:0:ffff:5b47:261c
91.71.38.29 0:0:0:0:0:ffff:5b47:261d
91.71.38.30 0:0:0:0:0:ffff:5b47:261e
91.71.38.31 0:0:0:0:0:ffff:5b47:261f
91.71.38.32 0:0:0:0:0:ffff:5b47:2620
91.71.38.33 0:0:0:0:0:ffff:5b47:2621
91.71.38.34 0:0:0:0:0:ffff:5b47:2622
91.71.38.35 0:0:0:0:0:ffff:5b47:2623
91.71.38.36 0:0:0:0:0:ffff:5b47:2624
91.71.38.37 0:0:0:0:0:ffff:5b47:2625
91.71.38.38 0:0:0:0:0:ffff:5b47:2626
91.71.38.39 0:0:0:0:0:ffff:5b47:2627
91.71.38.40 0:0:0:0:0:ffff:5b47:2628
91.71.38.41 0:0:0:0:0:ffff:5b47:2629
91.71.38.42 0:0:0:0:0:ffff:5b47:262a
91.71.38.43 0:0:0:0:0:ffff:5b47:262b
91.71.38.44 0:0:0:0:0:ffff:5b47:262c
91.71.38.45 0:0:0:0:0:ffff:5b47:262d
91.71.38.46 0:0:0:0:0:ffff:5b47:262e
91.71.38.47 0:0:0:0:0:ffff:5b47:262f
91.71.38.48 0:0:0:0:0:ffff:5b47:2630
91.71.38.49 0:0:0:0:0:ffff:5b47:2631
91.71.38.50 0:0:0:0:0:ffff:5b47:2632
91.71.38.51 0:0:0:0:0:ffff:5b47:2633
91.71.38.52 0:0:0:0:0:ffff:5b47:2634
91.71.38.53 0:0:0:0:0:ffff:5b47:2635
91.71.38.54 0:0:0:0:0:ffff:5b47:2636
91.71.38.55 0:0:0:0:0:ffff:5b47:2637
91.71.38.56 0:0:0:0:0:ffff:5b47:2638
91.71.38.57 0:0:0:0:0:ffff:5b47:2639
91.71.38.58 0:0:0:0:0:ffff:5b47:263a
91.71.38.59 0:0:0:0:0:ffff:5b47:263b
91.71.38.60 0:0:0:0:0:ffff:5b47:263c


91.71.38.61 0:0:0:0:0:ffff:5b47:263d
91.71.38.62 0:0:0:0:0:ffff:5b47:263e
91.71.38.63 0:0:0:0:0:ffff:5b47:263f
91.71.38.64 0:0:0:0:0:ffff:5b47:2640
91.71.38.65 0:0:0:0:0:ffff:5b47:2641
91.71.38.66 0:0:0:0:0:ffff:5b47:2642
91.71.38.67 0:0:0:0:0:ffff:5b47:2643
91.71.38.68 0:0:0:0:0:ffff:5b47:2644
91.71.38.69 0:0:0:0:0:ffff:5b47:2645
91.71.38.70 0:0:0:0:0:ffff:5b47:2646
91.71.38.71 0:0:0:0:0:ffff:5b47:2647
91.71.38.72 0:0:0:0:0:ffff:5b47:2648
91.71.38.73 0:0:0:0:0:ffff:5b47:2649
91.71.38.74 0:0:0:0:0:ffff:5b47:264a
91.71.38.75 0:0:0:0:0:ffff:5b47:264b
91.71.38.76 0:0:0:0:0:ffff:5b47:264c
91.71.38.77 0:0:0:0:0:ffff:5b47:264d
91.71.38.78 0:0:0:0:0:ffff:5b47:264e
91.71.38.79 0:0:0:0:0:ffff:5b47:264f
91.71.38.80 0:0:0:0:0:ffff:5b47:2650
91.71.38.81 0:0:0:0:0:ffff:5b47:2651
91.71.38.82 0:0:0:0:0:ffff:5b47:2652
91.71.38.83 0:0:0:0:0:ffff:5b47:2653
91.71.38.84 0:0:0:0:0:ffff:5b47:2654
91.71.38.85 0:0:0:0:0:ffff:5b47:2655
91.71.38.86 0:0:0:0:0:ffff:5b47:2656
91.71.38.87 0:0:0:0:0:ffff:5b47:2657
91.71.38.88 0:0:0:0:0:ffff:5b47:2658
91.71.38.89 0:0:0:0:0:ffff:5b47:2659
91.71.38.90 0:0:0:0:0:ffff:5b47:265a
91.71.38.91 0:0:0:0:0:ffff:5b47:265b
91.71.38.92 0:0:0:0:0:ffff:5b47:265c
91.71.38.93 0:0:0:0:0:ffff:5b47:265d
91.71.38.94 0:0:0:0:0:ffff:5b47:265e
91.71.38.95 0:0:0:0:0:ffff:5b47:265f
91.71.38.96 0:0:0:0:0:ffff:5b47:2660
91.71.38.97 0:0:0:0:0:ffff:5b47:2661
91.71.38.98 0:0:0:0:0:ffff:5b47:2662
91.71.38.99 0:0:0:0:0:ffff:5b47:2663
91.71.38.100 0:0:0:0:0:ffff:5b47:2664
91.71.38.101 0:0:0:0:0:ffff:5b47:2665
91.71.38.102 0:0:0:0:0:ffff:5b47:2666
91.71.38.103 0:0:0:0:0:ffff:5b47:2667
91.71.38.104 0:0:0:0:0:ffff:5b47:2668
91.71.38.105 0:0:0:0:0:ffff:5b47:2669
91.71.38.106 0:0:0:0:0:ffff:5b47:266a
91.71.38.107 0:0:0:0:0:ffff:5b47:266b
91.71.38.108 0:0:0:0:0:ffff:5b47:266c
91.71.38.109 0:0:0:0:0:ffff:5b47:266d
91.71.38.110 0:0:0:0:0:ffff:5b47:266e
91.71.38.111 0:0:0:0:0:ffff:5b47:266f
91.71.38.112 0:0:0:0:0:ffff:5b47:2670
91.71.38.113 0:0:0:0:0:ffff:5b47:2671
91.71.38.114 0:0:0:0:0:ffff:5b47:2672
91.71.38.115 0:0:0:0:0:ffff:5b47:2673
91.71.38.116 0:0:0:0:0:ffff:5b47:2674
91.71.38.117 0:0:0:0:0:ffff:5b47:2675
91.71.38.118 0:0:0:0:0:ffff:5b47:2676
91.71.38.119 0:0:0:0:0:ffff:5b47:2677
91.71.38.120 0:0:0:0:0:ffff:5b47:2678


91.71.38.121 0:0:0:0:0:ffff:5b47:2679
91.71.38.122 0:0:0:0:0:ffff:5b47:267a
91.71.38.123 0:0:0:0:0:ffff:5b47:267b
91.71.38.124 0:0:0:0:0:ffff:5b47:267c
91.71.38.125 0:0:0:0:0:ffff:5b47:267d
91.71.38.126 0:0:0:0:0:ffff:5b47:267e
91.71.38.127 0:0:0:0:0:ffff:5b47:267f
91.71.38.128 0:0:0:0:0:ffff:5b47:2680
91.71.38.129 0:0:0:0:0:ffff:5b47:2681
91.71.38.130 0:0:0:0:0:ffff:5b47:2682
91.71.38.131 0:0:0:0:0:ffff:5b47:2683
91.71.38.132 0:0:0:0:0:ffff:5b47:2684
91.71.38.133 0:0:0:0:0:ffff:5b47:2685
91.71.38.134 0:0:0:0:0:ffff:5b47:2686
91.71.38.135 0:0:0:0:0:ffff:5b47:2687
91.71.38.136 0:0:0:0:0:ffff:5b47:2688
91.71.38.137 0:0:0:0:0:ffff:5b47:2689
91.71.38.138 0:0:0:0:0:ffff:5b47:268a
91.71.38.139 0:0:0:0:0:ffff:5b47:268b
91.71.38.140 0:0:0:0:0:ffff:5b47:268c
91.71.38.141 0:0:0:0:0:ffff:5b47:268d
91.71.38.142 0:0:0:0:0:ffff:5b47:268e
91.71.38.143 0:0:0:0:0:ffff:5b47:268f
91.71.38.144 0:0:0:0:0:ffff:5b47:2690
91.71.38.145 0:0:0:0:0:ffff:5b47:2691
91.71.38.146 0:0:0:0:0:ffff:5b47:2692
91.71.38.147 0:0:0:0:0:ffff:5b47:2693
91.71.38.148 0:0:0:0:0:ffff:5b47:2694
91.71.38.149 0:0:0:0:0:ffff:5b47:2695
91.71.38.150 0:0:0:0:0:ffff:5b47:2696
91.71.38.151 0:0:0:0:0:ffff:5b47:2697
91.71.38.152 0:0:0:0:0:ffff:5b47:2698
91.71.38.153 0:0:0:0:0:ffff:5b47:2699
91.71.38.154 0:0:0:0:0:ffff:5b47:269a
91.71.38.155 0:0:0:0:0:ffff:5b47:269b
91.71.38.156 0:0:0:0:0:ffff:5b47:269c
91.71.38.157 0:0:0:0:0:ffff:5b47:269d
91.71.38.158 0:0:0:0:0:ffff:5b47:269e
91.71.38.159 0:0:0:0:0:ffff:5b47:269f
91.71.38.160 0:0:0:0:0:ffff:5b47:26a0
91.71.38.161 0:0:0:0:0:ffff:5b47:26a1
91.71.38.162 0:0:0:0:0:ffff:5b47:26a2
91.71.38.163 0:0:0:0:0:ffff:5b47:26a3
91.71.38.164 0:0:0:0:0:ffff:5b47:26a4
91.71.38.165 0:0:0:0:0:ffff:5b47:26a5
91.71.38.166 0:0:0:0:0:ffff:5b47:26a6
91.71.38.167 0:0:0:0:0:ffff:5b47:26a7
91.71.38.168 0:0:0:0:0:ffff:5b47:26a8
91.71.38.169 0:0:0:0:0:ffff:5b47:26a9
91.71.38.170 0:0:0:0:0:ffff:5b47:26aa
91.71.38.171 0:0:0:0:0:ffff:5b47:26ab
91.71.38.172 0:0:0:0:0:ffff:5b47:26ac
91.71.38.173 0:0:0:0:0:ffff:5b47:26ad
91.71.38.174 0:0:0:0:0:ffff:5b47:26ae
91.71.38.175 0:0:0:0:0:ffff:5b47:26af
91.71.38.176 0:0:0:0:0:ffff:5b47:26b0
91.71.38.177 0:0:0:0:0:ffff:5b47:26b1
91.71.38.178 0:0:0:0:0:ffff:5b47:26b2
91.71.38.179 0:0:0:0:0:ffff:5b47:26b3
91.71.38.180 0:0:0:0:0:ffff:5b47:26b4


91.71.38.181 0:0:0:0:0:ffff:5b47:26b5
91.71.38.182 0:0:0:0:0:ffff:5b47:26b6
91.71.38.183 0:0:0:0:0:ffff:5b47:26b7
91.71.38.184 0:0:0:0:0:ffff:5b47:26b8
91.71.38.185 0:0:0:0:0:ffff:5b47:26b9
91.71.38.186 0:0:0:0:0:ffff:5b47:26ba
91.71.38.187 0:0:0:0:0:ffff:5b47:26bb
91.71.38.188 0:0:0:0:0:ffff:5b47:26bc
91.71.38.189 0:0:0:0:0:ffff:5b47:26bd
91.71.38.190 0:0:0:0:0:ffff:5b47:26be
91.71.38.191 0:0:0:0:0:ffff:5b47:26bf
91.71.38.192 0:0:0:0:0:ffff:5b47:26c0
91.71.38.193 0:0:0:0:0:ffff:5b47:26c1
91.71.38.194 0:0:0:0:0:ffff:5b47:26c2
91.71.38.195 0:0:0:0:0:ffff:5b47:26c3
91.71.38.196 0:0:0:0:0:ffff:5b47:26c4
91.71.38.197 0:0:0:0:0:ffff:5b47:26c5
91.71.38.198 0:0:0:0:0:ffff:5b47:26c6
91.71.38.199 0:0:0:0:0:ffff:5b47:26c7
91.71.38.200 0:0:0:0:0:ffff:5b47:26c8
91.71.38.201 0:0:0:0:0:ffff:5b47:26c9
91.71.38.202 0:0:0:0:0:ffff:5b47:26ca
91.71.38.203 0:0:0:0:0:ffff:5b47:26cb
91.71.38.204 0:0:0:0:0:ffff:5b47:26cc
91.71.38.205 0:0:0:0:0:ffff:5b47:26cd
91.71.38.206 0:0:0:0:0:ffff:5b47:26ce
91.71.38.207 0:0:0:0:0:ffff:5b47:26cf
91.71.38.208 0:0:0:0:0:ffff:5b47:26d0
91.71.38.209 0:0:0:0:0:ffff:5b47:26d1
91.71.38.210 0:0:0:0:0:ffff:5b47:26d2
91.71.38.211 0:0:0:0:0:ffff:5b47:26d3
91.71.38.212 0:0:0:0:0:ffff:5b47:26d4
91.71.38.213 0:0:0:0:0:ffff:5b47:26d5
91.71.38.214 0:0:0:0:0:ffff:5b47:26d6
91.71.38.215 0:0:0:0:0:ffff:5b47:26d7
91.71.38.216 0:0:0:0:0:ffff:5b47:26d8
91.71.38.217 0:0:0:0:0:ffff:5b47:26d9
91.71.38.218 0:0:0:0:0:ffff:5b47:26da
91.71.38.219 0:0:0:0:0:ffff:5b47:26db
91.71.38.220 0:0:0:0:0:ffff:5b47:26dc
91.71.38.221 0:0:0:0:0:ffff:5b47:26dd
91.71.38.222 0:0:0:0:0:ffff:5b47:26de
91.71.38.223 0:0:0:0:0:ffff:5b47:26df
91.71.38.224 0:0:0:0:0:ffff:5b47:26e0
91.71.38.225 0:0:0:0:0:ffff:5b47:26e1
91.71.38.226 0:0:0:0:0:ffff:5b47:26e2
91.71.38.227 0:0:0:0:0:ffff:5b47:26e3
91.71.38.228 0:0:0:0:0:ffff:5b47:26e4
91.71.38.229 0:0:0:0:0:ffff:5b47:26e5
91.71.38.230 0:0:0:0:0:ffff:5b47:26e6
91.71.38.231 0:0:0:0:0:ffff:5b47:26e7
91.71.38.232 0:0:0:0:0:ffff:5b47:26e8
91.71.38.233 0:0:0:0:0:ffff:5b47:26e9
91.71.38.234 0:0:0:0:0:ffff:5b47:26ea
91.71.38.235 0:0:0:0:0:ffff:5b47:26eb
91.71.38.236 0:0:0:0:0:ffff:5b47:26ec
91.71.38.237 0:0:0:0:0:ffff:5b47:26ed
91.71.38.238 0:0:0:0:0:ffff:5b47:26ee
91.71.38.239 0:0:0:0:0:ffff:5b47:26ef
91.71.38.240 0:0:0:0:0:ffff:5b47:26f0
91.71.38.241 0:0:0:0:0:ffff:5b47:26f1
91.71.38.242 0:0:0:0:0:ffff:5b47:26f2
91.71.38.243 0:0:0:0:0:ffff:5b47:26f3
91.71.38.244 0:0:0:0:0:ffff:5b47:26f4
91.71.38.245 0:0:0:0:0:ffff:5b47:26f5
91.71.38.246 0:0:0:0:0:ffff:5b47:26f6
91.71.38.247 0:0:0:0:0:ffff:5b47:26f7
91.71.38.248 0:0:0:0:0:ffff:5b47:26f8
91.71.38.249 0:0:0:0:0:ffff:5b47:26f9
91.71.38.250 0:0:0:0:0:ffff:5b47:26fa
91.71.38.251 0:0:0:0:0:ffff:5b47:26fb
91.71.38.252 0:0:0:0:0:ffff:5b47:26fc
91.71.38.253 0:0:0:0:0:ffff:5b47:26fd
91.71.38.254 0:0:0:0:0:ffff:5b47:26fe
91.71.38.255 0:0:0:0:0:ffff:5b47:26ff


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.