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
45.123.38.1 0:0:0:0:0:ffff:2d7b:2601
45.123.38.2 0:0:0:0:0:ffff:2d7b:2602
45.123.38.3 0:0:0:0:0:ffff:2d7b:2603
45.123.38.4 0:0:0:0:0:ffff:2d7b:2604
45.123.38.5 0:0:0:0:0:ffff:2d7b:2605
45.123.38.6 0:0:0:0:0:ffff:2d7b:2606
45.123.38.7 0:0:0:0:0:ffff:2d7b:2607
45.123.38.8 0:0:0:0:0:ffff:2d7b:2608
45.123.38.9 0:0:0:0:0:ffff:2d7b:2609
45.123.38.10 0:0:0:0:0:ffff:2d7b:260a
45.123.38.11 0:0:0:0:0:ffff:2d7b:260b
45.123.38.12 0:0:0:0:0:ffff:2d7b:260c
45.123.38.13 0:0:0:0:0:ffff:2d7b:260d
45.123.38.14 0:0:0:0:0:ffff:2d7b:260e
45.123.38.15 0:0:0:0:0:ffff:2d7b:260f
45.123.38.16 0:0:0:0:0:ffff:2d7b:2610
45.123.38.17 0:0:0:0:0:ffff:2d7b:2611
45.123.38.18 0:0:0:0:0:ffff:2d7b:2612
45.123.38.19 0:0:0:0:0:ffff:2d7b:2613
45.123.38.20 0:0:0:0:0:ffff:2d7b:2614
45.123.38.21 0:0:0:0:0:ffff:2d7b:2615
45.123.38.22 0:0:0:0:0:ffff:2d7b:2616
45.123.38.23 0:0:0:0:0:ffff:2d7b:2617
45.123.38.24 0:0:0:0:0:ffff:2d7b:2618
45.123.38.25 0:0:0:0:0:ffff:2d7b:2619
45.123.38.26 0:0:0:0:0:ffff:2d7b:261a
45.123.38.27 0:0:0:0:0:ffff:2d7b:261b
45.123.38.28 0:0:0:0:0:ffff:2d7b:261c
45.123.38.29 0:0:0:0:0:ffff:2d7b:261d
45.123.38.30 0:0:0:0:0:ffff:2d7b:261e
45.123.38.31 0:0:0:0:0:ffff:2d7b:261f
45.123.38.32 0:0:0:0:0:ffff:2d7b:2620
45.123.38.33 0:0:0:0:0:ffff:2d7b:2621
45.123.38.34 0:0:0:0:0:ffff:2d7b:2622
45.123.38.35 0:0:0:0:0:ffff:2d7b:2623
45.123.38.36 0:0:0:0:0:ffff:2d7b:2624
45.123.38.37 0:0:0:0:0:ffff:2d7b:2625
45.123.38.38 0:0:0:0:0:ffff:2d7b:2626
45.123.38.39 0:0:0:0:0:ffff:2d7b:2627
45.123.38.40 0:0:0:0:0:ffff:2d7b:2628
45.123.38.41 0:0:0:0:0:ffff:2d7b:2629
45.123.38.42 0:0:0:0:0:ffff:2d7b:262a
45.123.38.43 0:0:0:0:0:ffff:2d7b:262b
45.123.38.44 0:0:0:0:0:ffff:2d7b:262c
45.123.38.45 0:0:0:0:0:ffff:2d7b:262d
45.123.38.46 0:0:0:0:0:ffff:2d7b:262e
45.123.38.47 0:0:0:0:0:ffff:2d7b:262f
45.123.38.48 0:0:0:0:0:ffff:2d7b:2630
45.123.38.49 0:0:0:0:0:ffff:2d7b:2631
45.123.38.50 0:0:0:0:0:ffff:2d7b:2632
45.123.38.51 0:0:0:0:0:ffff:2d7b:2633
45.123.38.52 0:0:0:0:0:ffff:2d7b:2634
45.123.38.53 0:0:0:0:0:ffff:2d7b:2635
45.123.38.54 0:0:0:0:0:ffff:2d7b:2636
45.123.38.55 0:0:0:0:0:ffff:2d7b:2637
45.123.38.56 0:0:0:0:0:ffff:2d7b:2638
45.123.38.57 0:0:0:0:0:ffff:2d7b:2639
45.123.38.58 0:0:0:0:0:ffff:2d7b:263a
45.123.38.59 0:0:0:0:0:ffff:2d7b:263b
45.123.38.60 0:0:0:0:0:ffff:2d7b:263c


45.123.38.61 0:0:0:0:0:ffff:2d7b:263d
45.123.38.62 0:0:0:0:0:ffff:2d7b:263e
45.123.38.63 0:0:0:0:0:ffff:2d7b:263f
45.123.38.64 0:0:0:0:0:ffff:2d7b:2640
45.123.38.65 0:0:0:0:0:ffff:2d7b:2641
45.123.38.66 0:0:0:0:0:ffff:2d7b:2642
45.123.38.67 0:0:0:0:0:ffff:2d7b:2643
45.123.38.68 0:0:0:0:0:ffff:2d7b:2644
45.123.38.69 0:0:0:0:0:ffff:2d7b:2645
45.123.38.70 0:0:0:0:0:ffff:2d7b:2646
45.123.38.71 0:0:0:0:0:ffff:2d7b:2647
45.123.38.72 0:0:0:0:0:ffff:2d7b:2648
45.123.38.73 0:0:0:0:0:ffff:2d7b:2649
45.123.38.74 0:0:0:0:0:ffff:2d7b:264a
45.123.38.75 0:0:0:0:0:ffff:2d7b:264b
45.123.38.76 0:0:0:0:0:ffff:2d7b:264c
45.123.38.77 0:0:0:0:0:ffff:2d7b:264d
45.123.38.78 0:0:0:0:0:ffff:2d7b:264e
45.123.38.79 0:0:0:0:0:ffff:2d7b:264f
45.123.38.80 0:0:0:0:0:ffff:2d7b:2650
45.123.38.81 0:0:0:0:0:ffff:2d7b:2651
45.123.38.82 0:0:0:0:0:ffff:2d7b:2652
45.123.38.83 0:0:0:0:0:ffff:2d7b:2653
45.123.38.84 0:0:0:0:0:ffff:2d7b:2654
45.123.38.85 0:0:0:0:0:ffff:2d7b:2655
45.123.38.86 0:0:0:0:0:ffff:2d7b:2656
45.123.38.87 0:0:0:0:0:ffff:2d7b:2657
45.123.38.88 0:0:0:0:0:ffff:2d7b:2658
45.123.38.89 0:0:0:0:0:ffff:2d7b:2659
45.123.38.90 0:0:0:0:0:ffff:2d7b:265a
45.123.38.91 0:0:0:0:0:ffff:2d7b:265b
45.123.38.92 0:0:0:0:0:ffff:2d7b:265c
45.123.38.93 0:0:0:0:0:ffff:2d7b:265d
45.123.38.94 0:0:0:0:0:ffff:2d7b:265e
45.123.38.95 0:0:0:0:0:ffff:2d7b:265f
45.123.38.96 0:0:0:0:0:ffff:2d7b:2660
45.123.38.97 0:0:0:0:0:ffff:2d7b:2661
45.123.38.98 0:0:0:0:0:ffff:2d7b:2662
45.123.38.99 0:0:0:0:0:ffff:2d7b:2663
45.123.38.100 0:0:0:0:0:ffff:2d7b:2664
45.123.38.101 0:0:0:0:0:ffff:2d7b:2665
45.123.38.102 0:0:0:0:0:ffff:2d7b:2666
45.123.38.103 0:0:0:0:0:ffff:2d7b:2667
45.123.38.104 0:0:0:0:0:ffff:2d7b:2668
45.123.38.105 0:0:0:0:0:ffff:2d7b:2669
45.123.38.106 0:0:0:0:0:ffff:2d7b:266a
45.123.38.107 0:0:0:0:0:ffff:2d7b:266b
45.123.38.108 0:0:0:0:0:ffff:2d7b:266c
45.123.38.109 0:0:0:0:0:ffff:2d7b:266d
45.123.38.110 0:0:0:0:0:ffff:2d7b:266e
45.123.38.111 0:0:0:0:0:ffff:2d7b:266f
45.123.38.112 0:0:0:0:0:ffff:2d7b:2670
45.123.38.113 0:0:0:0:0:ffff:2d7b:2671
45.123.38.114 0:0:0:0:0:ffff:2d7b:2672
45.123.38.115 0:0:0:0:0:ffff:2d7b:2673
45.123.38.116 0:0:0:0:0:ffff:2d7b:2674
45.123.38.117 0:0:0:0:0:ffff:2d7b:2675
45.123.38.118 0:0:0:0:0:ffff:2d7b:2676
45.123.38.119 0:0:0:0:0:ffff:2d7b:2677
45.123.38.120 0:0:0:0:0:ffff:2d7b:2678


45.123.38.121 0:0:0:0:0:ffff:2d7b:2679
45.123.38.122 0:0:0:0:0:ffff:2d7b:267a
45.123.38.123 0:0:0:0:0:ffff:2d7b:267b
45.123.38.124 0:0:0:0:0:ffff:2d7b:267c
45.123.38.125 0:0:0:0:0:ffff:2d7b:267d
45.123.38.126 0:0:0:0:0:ffff:2d7b:267e
45.123.38.127 0:0:0:0:0:ffff:2d7b:267f
45.123.38.128 0:0:0:0:0:ffff:2d7b:2680
45.123.38.129 0:0:0:0:0:ffff:2d7b:2681
45.123.38.130 0:0:0:0:0:ffff:2d7b:2682
45.123.38.131 0:0:0:0:0:ffff:2d7b:2683
45.123.38.132 0:0:0:0:0:ffff:2d7b:2684
45.123.38.133 0:0:0:0:0:ffff:2d7b:2685
45.123.38.134 0:0:0:0:0:ffff:2d7b:2686
45.123.38.135 0:0:0:0:0:ffff:2d7b:2687
45.123.38.136 0:0:0:0:0:ffff:2d7b:2688
45.123.38.137 0:0:0:0:0:ffff:2d7b:2689
45.123.38.138 0:0:0:0:0:ffff:2d7b:268a
45.123.38.139 0:0:0:0:0:ffff:2d7b:268b
45.123.38.140 0:0:0:0:0:ffff:2d7b:268c
45.123.38.141 0:0:0:0:0:ffff:2d7b:268d
45.123.38.142 0:0:0:0:0:ffff:2d7b:268e
45.123.38.143 0:0:0:0:0:ffff:2d7b:268f
45.123.38.144 0:0:0:0:0:ffff:2d7b:2690
45.123.38.145 0:0:0:0:0:ffff:2d7b:2691
45.123.38.146 0:0:0:0:0:ffff:2d7b:2692
45.123.38.147 0:0:0:0:0:ffff:2d7b:2693
45.123.38.148 0:0:0:0:0:ffff:2d7b:2694
45.123.38.149 0:0:0:0:0:ffff:2d7b:2695
45.123.38.150 0:0:0:0:0:ffff:2d7b:2696
45.123.38.151 0:0:0:0:0:ffff:2d7b:2697
45.123.38.152 0:0:0:0:0:ffff:2d7b:2698
45.123.38.153 0:0:0:0:0:ffff:2d7b:2699
45.123.38.154 0:0:0:0:0:ffff:2d7b:269a
45.123.38.155 0:0:0:0:0:ffff:2d7b:269b
45.123.38.156 0:0:0:0:0:ffff:2d7b:269c
45.123.38.157 0:0:0:0:0:ffff:2d7b:269d
45.123.38.158 0:0:0:0:0:ffff:2d7b:269e
45.123.38.159 0:0:0:0:0:ffff:2d7b:269f
45.123.38.160 0:0:0:0:0:ffff:2d7b:26a0
45.123.38.161 0:0:0:0:0:ffff:2d7b:26a1
45.123.38.162 0:0:0:0:0:ffff:2d7b:26a2
45.123.38.163 0:0:0:0:0:ffff:2d7b:26a3
45.123.38.164 0:0:0:0:0:ffff:2d7b:26a4
45.123.38.165 0:0:0:0:0:ffff:2d7b:26a5
45.123.38.166 0:0:0:0:0:ffff:2d7b:26a6
45.123.38.167 0:0:0:0:0:ffff:2d7b:26a7
45.123.38.168 0:0:0:0:0:ffff:2d7b:26a8
45.123.38.169 0:0:0:0:0:ffff:2d7b:26a9
45.123.38.170 0:0:0:0:0:ffff:2d7b:26aa
45.123.38.171 0:0:0:0:0:ffff:2d7b:26ab
45.123.38.172 0:0:0:0:0:ffff:2d7b:26ac
45.123.38.173 0:0:0:0:0:ffff:2d7b:26ad
45.123.38.174 0:0:0:0:0:ffff:2d7b:26ae
45.123.38.175 0:0:0:0:0:ffff:2d7b:26af
45.123.38.176 0:0:0:0:0:ffff:2d7b:26b0
45.123.38.177 0:0:0:0:0:ffff:2d7b:26b1
45.123.38.178 0:0:0:0:0:ffff:2d7b:26b2
45.123.38.179 0:0:0:0:0:ffff:2d7b:26b3
45.123.38.180 0:0:0:0:0:ffff:2d7b:26b4


45.123.38.181 0:0:0:0:0:ffff:2d7b:26b5
45.123.38.182 0:0:0:0:0:ffff:2d7b:26b6
45.123.38.183 0:0:0:0:0:ffff:2d7b:26b7
45.123.38.184 0:0:0:0:0:ffff:2d7b:26b8
45.123.38.185 0:0:0:0:0:ffff:2d7b:26b9
45.123.38.186 0:0:0:0:0:ffff:2d7b:26ba
45.123.38.187 0:0:0:0:0:ffff:2d7b:26bb
45.123.38.188 0:0:0:0:0:ffff:2d7b:26bc
45.123.38.189 0:0:0:0:0:ffff:2d7b:26bd
45.123.38.190 0:0:0:0:0:ffff:2d7b:26be
45.123.38.191 0:0:0:0:0:ffff:2d7b:26bf
45.123.38.192 0:0:0:0:0:ffff:2d7b:26c0
45.123.38.193 0:0:0:0:0:ffff:2d7b:26c1
45.123.38.194 0:0:0:0:0:ffff:2d7b:26c2
45.123.38.195 0:0:0:0:0:ffff:2d7b:26c3
45.123.38.196 0:0:0:0:0:ffff:2d7b:26c4
45.123.38.197 0:0:0:0:0:ffff:2d7b:26c5
45.123.38.198 0:0:0:0:0:ffff:2d7b:26c6
45.123.38.199 0:0:0:0:0:ffff:2d7b:26c7
45.123.38.200 0:0:0:0:0:ffff:2d7b:26c8
45.123.38.201 0:0:0:0:0:ffff:2d7b:26c9
45.123.38.202 0:0:0:0:0:ffff:2d7b:26ca
45.123.38.203 0:0:0:0:0:ffff:2d7b:26cb
45.123.38.204 0:0:0:0:0:ffff:2d7b:26cc
45.123.38.205 0:0:0:0:0:ffff:2d7b:26cd
45.123.38.206 0:0:0:0:0:ffff:2d7b:26ce
45.123.38.207 0:0:0:0:0:ffff:2d7b:26cf
45.123.38.208 0:0:0:0:0:ffff:2d7b:26d0
45.123.38.209 0:0:0:0:0:ffff:2d7b:26d1
45.123.38.210 0:0:0:0:0:ffff:2d7b:26d2
45.123.38.211 0:0:0:0:0:ffff:2d7b:26d3
45.123.38.212 0:0:0:0:0:ffff:2d7b:26d4
45.123.38.213 0:0:0:0:0:ffff:2d7b:26d5
45.123.38.214 0:0:0:0:0:ffff:2d7b:26d6
45.123.38.215 0:0:0:0:0:ffff:2d7b:26d7
45.123.38.216 0:0:0:0:0:ffff:2d7b:26d8
45.123.38.217 0:0:0:0:0:ffff:2d7b:26d9
45.123.38.218 0:0:0:0:0:ffff:2d7b:26da
45.123.38.219 0:0:0:0:0:ffff:2d7b:26db
45.123.38.220 0:0:0:0:0:ffff:2d7b:26dc
45.123.38.221 0:0:0:0:0:ffff:2d7b:26dd
45.123.38.222 0:0:0:0:0:ffff:2d7b:26de
45.123.38.223 0:0:0:0:0:ffff:2d7b:26df
45.123.38.224 0:0:0:0:0:ffff:2d7b:26e0
45.123.38.225 0:0:0:0:0:ffff:2d7b:26e1
45.123.38.226 0:0:0:0:0:ffff:2d7b:26e2
45.123.38.227 0:0:0:0:0:ffff:2d7b:26e3
45.123.38.228 0:0:0:0:0:ffff:2d7b:26e4
45.123.38.229 0:0:0:0:0:ffff:2d7b:26e5
45.123.38.230 0:0:0:0:0:ffff:2d7b:26e6
45.123.38.231 0:0:0:0:0:ffff:2d7b:26e7
45.123.38.232 0:0:0:0:0:ffff:2d7b:26e8
45.123.38.233 0:0:0:0:0:ffff:2d7b:26e9
45.123.38.234 0:0:0:0:0:ffff:2d7b:26ea
45.123.38.235 0:0:0:0:0:ffff:2d7b:26eb
45.123.38.236 0:0:0:0:0:ffff:2d7b:26ec
45.123.38.237 0:0:0:0:0:ffff:2d7b:26ed
45.123.38.238 0:0:0:0:0:ffff:2d7b:26ee
45.123.38.239 0:0:0:0:0:ffff:2d7b:26ef
45.123.38.240 0:0:0:0:0:ffff:2d7b:26f0
45.123.38.241 0:0:0:0:0:ffff:2d7b:26f1
45.123.38.242 0:0:0:0:0:ffff:2d7b:26f2
45.123.38.243 0:0:0:0:0:ffff:2d7b:26f3
45.123.38.244 0:0:0:0:0:ffff:2d7b:26f4
45.123.38.245 0:0:0:0:0:ffff:2d7b:26f5
45.123.38.246 0:0:0:0:0:ffff:2d7b:26f6
45.123.38.247 0:0:0:0:0:ffff:2d7b:26f7
45.123.38.248 0:0:0:0:0:ffff:2d7b:26f8
45.123.38.249 0:0:0:0:0:ffff:2d7b:26f9
45.123.38.250 0:0:0:0:0:ffff:2d7b:26fa
45.123.38.251 0:0:0:0:0:ffff:2d7b:26fb
45.123.38.252 0:0:0:0:0:ffff:2d7b:26fc
45.123.38.253 0:0:0:0:0:ffff:2d7b:26fd
45.123.38.254 0:0:0:0:0:ffff:2d7b:26fe
45.123.38.255 0:0:0:0:0:ffff:2d7b: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.