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
144.21.38.1 0:0:0:0:0:ffff:9015:2601
144.21.38.2 0:0:0:0:0:ffff:9015:2602
144.21.38.3 0:0:0:0:0:ffff:9015:2603
144.21.38.4 0:0:0:0:0:ffff:9015:2604
144.21.38.5 0:0:0:0:0:ffff:9015:2605
144.21.38.6 0:0:0:0:0:ffff:9015:2606
144.21.38.7 0:0:0:0:0:ffff:9015:2607
144.21.38.8 0:0:0:0:0:ffff:9015:2608
144.21.38.9 0:0:0:0:0:ffff:9015:2609
144.21.38.10 0:0:0:0:0:ffff:9015:260a
144.21.38.11 0:0:0:0:0:ffff:9015:260b
144.21.38.12 0:0:0:0:0:ffff:9015:260c
144.21.38.13 0:0:0:0:0:ffff:9015:260d
144.21.38.14 0:0:0:0:0:ffff:9015:260e
144.21.38.15 0:0:0:0:0:ffff:9015:260f
144.21.38.16 0:0:0:0:0:ffff:9015:2610
144.21.38.17 0:0:0:0:0:ffff:9015:2611
144.21.38.18 0:0:0:0:0:ffff:9015:2612
144.21.38.19 0:0:0:0:0:ffff:9015:2613
144.21.38.20 0:0:0:0:0:ffff:9015:2614
144.21.38.21 0:0:0:0:0:ffff:9015:2615
144.21.38.22 0:0:0:0:0:ffff:9015:2616
144.21.38.23 0:0:0:0:0:ffff:9015:2617
144.21.38.24 0:0:0:0:0:ffff:9015:2618
144.21.38.25 0:0:0:0:0:ffff:9015:2619
144.21.38.26 0:0:0:0:0:ffff:9015:261a
144.21.38.27 0:0:0:0:0:ffff:9015:261b
144.21.38.28 0:0:0:0:0:ffff:9015:261c
144.21.38.29 0:0:0:0:0:ffff:9015:261d
144.21.38.30 0:0:0:0:0:ffff:9015:261e
144.21.38.31 0:0:0:0:0:ffff:9015:261f
144.21.38.32 0:0:0:0:0:ffff:9015:2620
144.21.38.33 0:0:0:0:0:ffff:9015:2621
144.21.38.34 0:0:0:0:0:ffff:9015:2622
144.21.38.35 0:0:0:0:0:ffff:9015:2623
144.21.38.36 0:0:0:0:0:ffff:9015:2624
144.21.38.37 0:0:0:0:0:ffff:9015:2625
144.21.38.38 0:0:0:0:0:ffff:9015:2626
144.21.38.39 0:0:0:0:0:ffff:9015:2627
144.21.38.40 0:0:0:0:0:ffff:9015:2628
144.21.38.41 0:0:0:0:0:ffff:9015:2629
144.21.38.42 0:0:0:0:0:ffff:9015:262a
144.21.38.43 0:0:0:0:0:ffff:9015:262b
144.21.38.44 0:0:0:0:0:ffff:9015:262c
144.21.38.45 0:0:0:0:0:ffff:9015:262d
144.21.38.46 0:0:0:0:0:ffff:9015:262e
144.21.38.47 0:0:0:0:0:ffff:9015:262f
144.21.38.48 0:0:0:0:0:ffff:9015:2630
144.21.38.49 0:0:0:0:0:ffff:9015:2631
144.21.38.50 0:0:0:0:0:ffff:9015:2632
144.21.38.51 0:0:0:0:0:ffff:9015:2633
144.21.38.52 0:0:0:0:0:ffff:9015:2634
144.21.38.53 0:0:0:0:0:ffff:9015:2635
144.21.38.54 0:0:0:0:0:ffff:9015:2636
144.21.38.55 0:0:0:0:0:ffff:9015:2637
144.21.38.56 0:0:0:0:0:ffff:9015:2638
144.21.38.57 0:0:0:0:0:ffff:9015:2639
144.21.38.58 0:0:0:0:0:ffff:9015:263a
144.21.38.59 0:0:0:0:0:ffff:9015:263b
144.21.38.60 0:0:0:0:0:ffff:9015:263c


144.21.38.61 0:0:0:0:0:ffff:9015:263d
144.21.38.62 0:0:0:0:0:ffff:9015:263e
144.21.38.63 0:0:0:0:0:ffff:9015:263f
144.21.38.64 0:0:0:0:0:ffff:9015:2640
144.21.38.65 0:0:0:0:0:ffff:9015:2641
144.21.38.66 0:0:0:0:0:ffff:9015:2642
144.21.38.67 0:0:0:0:0:ffff:9015:2643
144.21.38.68 0:0:0:0:0:ffff:9015:2644
144.21.38.69 0:0:0:0:0:ffff:9015:2645
144.21.38.70 0:0:0:0:0:ffff:9015:2646
144.21.38.71 0:0:0:0:0:ffff:9015:2647
144.21.38.72 0:0:0:0:0:ffff:9015:2648
144.21.38.73 0:0:0:0:0:ffff:9015:2649
144.21.38.74 0:0:0:0:0:ffff:9015:264a
144.21.38.75 0:0:0:0:0:ffff:9015:264b
144.21.38.76 0:0:0:0:0:ffff:9015:264c
144.21.38.77 0:0:0:0:0:ffff:9015:264d
144.21.38.78 0:0:0:0:0:ffff:9015:264e
144.21.38.79 0:0:0:0:0:ffff:9015:264f
144.21.38.80 0:0:0:0:0:ffff:9015:2650
144.21.38.81 0:0:0:0:0:ffff:9015:2651
144.21.38.82 0:0:0:0:0:ffff:9015:2652
144.21.38.83 0:0:0:0:0:ffff:9015:2653
144.21.38.84 0:0:0:0:0:ffff:9015:2654
144.21.38.85 0:0:0:0:0:ffff:9015:2655
144.21.38.86 0:0:0:0:0:ffff:9015:2656
144.21.38.87 0:0:0:0:0:ffff:9015:2657
144.21.38.88 0:0:0:0:0:ffff:9015:2658
144.21.38.89 0:0:0:0:0:ffff:9015:2659
144.21.38.90 0:0:0:0:0:ffff:9015:265a
144.21.38.91 0:0:0:0:0:ffff:9015:265b
144.21.38.92 0:0:0:0:0:ffff:9015:265c
144.21.38.93 0:0:0:0:0:ffff:9015:265d
144.21.38.94 0:0:0:0:0:ffff:9015:265e
144.21.38.95 0:0:0:0:0:ffff:9015:265f
144.21.38.96 0:0:0:0:0:ffff:9015:2660
144.21.38.97 0:0:0:0:0:ffff:9015:2661
144.21.38.98 0:0:0:0:0:ffff:9015:2662
144.21.38.99 0:0:0:0:0:ffff:9015:2663
144.21.38.100 0:0:0:0:0:ffff:9015:2664
144.21.38.101 0:0:0:0:0:ffff:9015:2665
144.21.38.102 0:0:0:0:0:ffff:9015:2666
144.21.38.103 0:0:0:0:0:ffff:9015:2667
144.21.38.104 0:0:0:0:0:ffff:9015:2668
144.21.38.105 0:0:0:0:0:ffff:9015:2669
144.21.38.106 0:0:0:0:0:ffff:9015:266a
144.21.38.107 0:0:0:0:0:ffff:9015:266b
144.21.38.108 0:0:0:0:0:ffff:9015:266c
144.21.38.109 0:0:0:0:0:ffff:9015:266d
144.21.38.110 0:0:0:0:0:ffff:9015:266e
144.21.38.111 0:0:0:0:0:ffff:9015:266f
144.21.38.112 0:0:0:0:0:ffff:9015:2670
144.21.38.113 0:0:0:0:0:ffff:9015:2671
144.21.38.114 0:0:0:0:0:ffff:9015:2672
144.21.38.115 0:0:0:0:0:ffff:9015:2673
144.21.38.116 0:0:0:0:0:ffff:9015:2674
144.21.38.117 0:0:0:0:0:ffff:9015:2675
144.21.38.118 0:0:0:0:0:ffff:9015:2676
144.21.38.119 0:0:0:0:0:ffff:9015:2677
144.21.38.120 0:0:0:0:0:ffff:9015:2678


144.21.38.121 0:0:0:0:0:ffff:9015:2679
144.21.38.122 0:0:0:0:0:ffff:9015:267a
144.21.38.123 0:0:0:0:0:ffff:9015:267b
144.21.38.124 0:0:0:0:0:ffff:9015:267c
144.21.38.125 0:0:0:0:0:ffff:9015:267d
144.21.38.126 0:0:0:0:0:ffff:9015:267e
144.21.38.127 0:0:0:0:0:ffff:9015:267f
144.21.38.128 0:0:0:0:0:ffff:9015:2680
144.21.38.129 0:0:0:0:0:ffff:9015:2681
144.21.38.130 0:0:0:0:0:ffff:9015:2682
144.21.38.131 0:0:0:0:0:ffff:9015:2683
144.21.38.132 0:0:0:0:0:ffff:9015:2684
144.21.38.133 0:0:0:0:0:ffff:9015:2685
144.21.38.134 0:0:0:0:0:ffff:9015:2686
144.21.38.135 0:0:0:0:0:ffff:9015:2687
144.21.38.136 0:0:0:0:0:ffff:9015:2688
144.21.38.137 0:0:0:0:0:ffff:9015:2689
144.21.38.138 0:0:0:0:0:ffff:9015:268a
144.21.38.139 0:0:0:0:0:ffff:9015:268b
144.21.38.140 0:0:0:0:0:ffff:9015:268c
144.21.38.141 0:0:0:0:0:ffff:9015:268d
144.21.38.142 0:0:0:0:0:ffff:9015:268e
144.21.38.143 0:0:0:0:0:ffff:9015:268f
144.21.38.144 0:0:0:0:0:ffff:9015:2690
144.21.38.145 0:0:0:0:0:ffff:9015:2691
144.21.38.146 0:0:0:0:0:ffff:9015:2692
144.21.38.147 0:0:0:0:0:ffff:9015:2693
144.21.38.148 0:0:0:0:0:ffff:9015:2694
144.21.38.149 0:0:0:0:0:ffff:9015:2695
144.21.38.150 0:0:0:0:0:ffff:9015:2696
144.21.38.151 0:0:0:0:0:ffff:9015:2697
144.21.38.152 0:0:0:0:0:ffff:9015:2698
144.21.38.153 0:0:0:0:0:ffff:9015:2699
144.21.38.154 0:0:0:0:0:ffff:9015:269a
144.21.38.155 0:0:0:0:0:ffff:9015:269b
144.21.38.156 0:0:0:0:0:ffff:9015:269c
144.21.38.157 0:0:0:0:0:ffff:9015:269d
144.21.38.158 0:0:0:0:0:ffff:9015:269e
144.21.38.159 0:0:0:0:0:ffff:9015:269f
144.21.38.160 0:0:0:0:0:ffff:9015:26a0
144.21.38.161 0:0:0:0:0:ffff:9015:26a1
144.21.38.162 0:0:0:0:0:ffff:9015:26a2
144.21.38.163 0:0:0:0:0:ffff:9015:26a3
144.21.38.164 0:0:0:0:0:ffff:9015:26a4
144.21.38.165 0:0:0:0:0:ffff:9015:26a5
144.21.38.166 0:0:0:0:0:ffff:9015:26a6
144.21.38.167 0:0:0:0:0:ffff:9015:26a7
144.21.38.168 0:0:0:0:0:ffff:9015:26a8
144.21.38.169 0:0:0:0:0:ffff:9015:26a9
144.21.38.170 0:0:0:0:0:ffff:9015:26aa
144.21.38.171 0:0:0:0:0:ffff:9015:26ab
144.21.38.172 0:0:0:0:0:ffff:9015:26ac
144.21.38.173 0:0:0:0:0:ffff:9015:26ad
144.21.38.174 0:0:0:0:0:ffff:9015:26ae
144.21.38.175 0:0:0:0:0:ffff:9015:26af
144.21.38.176 0:0:0:0:0:ffff:9015:26b0
144.21.38.177 0:0:0:0:0:ffff:9015:26b1
144.21.38.178 0:0:0:0:0:ffff:9015:26b2
144.21.38.179 0:0:0:0:0:ffff:9015:26b3
144.21.38.180 0:0:0:0:0:ffff:9015:26b4


144.21.38.181 0:0:0:0:0:ffff:9015:26b5
144.21.38.182 0:0:0:0:0:ffff:9015:26b6
144.21.38.183 0:0:0:0:0:ffff:9015:26b7
144.21.38.184 0:0:0:0:0:ffff:9015:26b8
144.21.38.185 0:0:0:0:0:ffff:9015:26b9
144.21.38.186 0:0:0:0:0:ffff:9015:26ba
144.21.38.187 0:0:0:0:0:ffff:9015:26bb
144.21.38.188 0:0:0:0:0:ffff:9015:26bc
144.21.38.189 0:0:0:0:0:ffff:9015:26bd
144.21.38.190 0:0:0:0:0:ffff:9015:26be
144.21.38.191 0:0:0:0:0:ffff:9015:26bf
144.21.38.192 0:0:0:0:0:ffff:9015:26c0
144.21.38.193 0:0:0:0:0:ffff:9015:26c1
144.21.38.194 0:0:0:0:0:ffff:9015:26c2
144.21.38.195 0:0:0:0:0:ffff:9015:26c3
144.21.38.196 0:0:0:0:0:ffff:9015:26c4
144.21.38.197 0:0:0:0:0:ffff:9015:26c5
144.21.38.198 0:0:0:0:0:ffff:9015:26c6
144.21.38.199 0:0:0:0:0:ffff:9015:26c7
144.21.38.200 0:0:0:0:0:ffff:9015:26c8
144.21.38.201 0:0:0:0:0:ffff:9015:26c9
144.21.38.202 0:0:0:0:0:ffff:9015:26ca
144.21.38.203 0:0:0:0:0:ffff:9015:26cb
144.21.38.204 0:0:0:0:0:ffff:9015:26cc
144.21.38.205 0:0:0:0:0:ffff:9015:26cd
144.21.38.206 0:0:0:0:0:ffff:9015:26ce
144.21.38.207 0:0:0:0:0:ffff:9015:26cf
144.21.38.208 0:0:0:0:0:ffff:9015:26d0
144.21.38.209 0:0:0:0:0:ffff:9015:26d1
144.21.38.210 0:0:0:0:0:ffff:9015:26d2
144.21.38.211 0:0:0:0:0:ffff:9015:26d3
144.21.38.212 0:0:0:0:0:ffff:9015:26d4
144.21.38.213 0:0:0:0:0:ffff:9015:26d5
144.21.38.214 0:0:0:0:0:ffff:9015:26d6
144.21.38.215 0:0:0:0:0:ffff:9015:26d7
144.21.38.216 0:0:0:0:0:ffff:9015:26d8
144.21.38.217 0:0:0:0:0:ffff:9015:26d9
144.21.38.218 0:0:0:0:0:ffff:9015:26da
144.21.38.219 0:0:0:0:0:ffff:9015:26db
144.21.38.220 0:0:0:0:0:ffff:9015:26dc
144.21.38.221 0:0:0:0:0:ffff:9015:26dd
144.21.38.222 0:0:0:0:0:ffff:9015:26de
144.21.38.223 0:0:0:0:0:ffff:9015:26df
144.21.38.224 0:0:0:0:0:ffff:9015:26e0
144.21.38.225 0:0:0:0:0:ffff:9015:26e1
144.21.38.226 0:0:0:0:0:ffff:9015:26e2
144.21.38.227 0:0:0:0:0:ffff:9015:26e3
144.21.38.228 0:0:0:0:0:ffff:9015:26e4
144.21.38.229 0:0:0:0:0:ffff:9015:26e5
144.21.38.230 0:0:0:0:0:ffff:9015:26e6
144.21.38.231 0:0:0:0:0:ffff:9015:26e7
144.21.38.232 0:0:0:0:0:ffff:9015:26e8
144.21.38.233 0:0:0:0:0:ffff:9015:26e9
144.21.38.234 0:0:0:0:0:ffff:9015:26ea
144.21.38.235 0:0:0:0:0:ffff:9015:26eb
144.21.38.236 0:0:0:0:0:ffff:9015:26ec
144.21.38.237 0:0:0:0:0:ffff:9015:26ed
144.21.38.238 0:0:0:0:0:ffff:9015:26ee
144.21.38.239 0:0:0:0:0:ffff:9015:26ef
144.21.38.240 0:0:0:0:0:ffff:9015:26f0
144.21.38.241 0:0:0:0:0:ffff:9015:26f1
144.21.38.242 0:0:0:0:0:ffff:9015:26f2
144.21.38.243 0:0:0:0:0:ffff:9015:26f3
144.21.38.244 0:0:0:0:0:ffff:9015:26f4
144.21.38.245 0:0:0:0:0:ffff:9015:26f5
144.21.38.246 0:0:0:0:0:ffff:9015:26f6
144.21.38.247 0:0:0:0:0:ffff:9015:26f7
144.21.38.248 0:0:0:0:0:ffff:9015:26f8
144.21.38.249 0:0:0:0:0:ffff:9015:26f9
144.21.38.250 0:0:0:0:0:ffff:9015:26fa
144.21.38.251 0:0:0:0:0:ffff:9015:26fb
144.21.38.252 0:0:0:0:0:ffff:9015:26fc
144.21.38.253 0:0:0:0:0:ffff:9015:26fd
144.21.38.254 0:0:0:0:0:ffff:9015:26fe
144.21.38.255 0:0:0:0:0:ffff:9015:26ff


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.