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
120.3.37.1 0:0:0:0:0:ffff:7803:2501
120.3.37.2 0:0:0:0:0:ffff:7803:2502
120.3.37.3 0:0:0:0:0:ffff:7803:2503
120.3.37.4 0:0:0:0:0:ffff:7803:2504
120.3.37.5 0:0:0:0:0:ffff:7803:2505
120.3.37.6 0:0:0:0:0:ffff:7803:2506
120.3.37.7 0:0:0:0:0:ffff:7803:2507
120.3.37.8 0:0:0:0:0:ffff:7803:2508
120.3.37.9 0:0:0:0:0:ffff:7803:2509
120.3.37.10 0:0:0:0:0:ffff:7803:250a
120.3.37.11 0:0:0:0:0:ffff:7803:250b
120.3.37.12 0:0:0:0:0:ffff:7803:250c
120.3.37.13 0:0:0:0:0:ffff:7803:250d
120.3.37.14 0:0:0:0:0:ffff:7803:250e
120.3.37.15 0:0:0:0:0:ffff:7803:250f
120.3.37.16 0:0:0:0:0:ffff:7803:2510
120.3.37.17 0:0:0:0:0:ffff:7803:2511
120.3.37.18 0:0:0:0:0:ffff:7803:2512
120.3.37.19 0:0:0:0:0:ffff:7803:2513
120.3.37.20 0:0:0:0:0:ffff:7803:2514
120.3.37.21 0:0:0:0:0:ffff:7803:2515
120.3.37.22 0:0:0:0:0:ffff:7803:2516
120.3.37.23 0:0:0:0:0:ffff:7803:2517
120.3.37.24 0:0:0:0:0:ffff:7803:2518
120.3.37.25 0:0:0:0:0:ffff:7803:2519
120.3.37.26 0:0:0:0:0:ffff:7803:251a
120.3.37.27 0:0:0:0:0:ffff:7803:251b
120.3.37.28 0:0:0:0:0:ffff:7803:251c
120.3.37.29 0:0:0:0:0:ffff:7803:251d
120.3.37.30 0:0:0:0:0:ffff:7803:251e
120.3.37.31 0:0:0:0:0:ffff:7803:251f
120.3.37.32 0:0:0:0:0:ffff:7803:2520
120.3.37.33 0:0:0:0:0:ffff:7803:2521
120.3.37.34 0:0:0:0:0:ffff:7803:2522
120.3.37.35 0:0:0:0:0:ffff:7803:2523
120.3.37.36 0:0:0:0:0:ffff:7803:2524
120.3.37.37 0:0:0:0:0:ffff:7803:2525
120.3.37.38 0:0:0:0:0:ffff:7803:2526
120.3.37.39 0:0:0:0:0:ffff:7803:2527
120.3.37.40 0:0:0:0:0:ffff:7803:2528
120.3.37.41 0:0:0:0:0:ffff:7803:2529
120.3.37.42 0:0:0:0:0:ffff:7803:252a
120.3.37.43 0:0:0:0:0:ffff:7803:252b
120.3.37.44 0:0:0:0:0:ffff:7803:252c
120.3.37.45 0:0:0:0:0:ffff:7803:252d
120.3.37.46 0:0:0:0:0:ffff:7803:252e
120.3.37.47 0:0:0:0:0:ffff:7803:252f
120.3.37.48 0:0:0:0:0:ffff:7803:2530
120.3.37.49 0:0:0:0:0:ffff:7803:2531
120.3.37.50 0:0:0:0:0:ffff:7803:2532
120.3.37.51 0:0:0:0:0:ffff:7803:2533
120.3.37.52 0:0:0:0:0:ffff:7803:2534
120.3.37.53 0:0:0:0:0:ffff:7803:2535
120.3.37.54 0:0:0:0:0:ffff:7803:2536
120.3.37.55 0:0:0:0:0:ffff:7803:2537
120.3.37.56 0:0:0:0:0:ffff:7803:2538
120.3.37.57 0:0:0:0:0:ffff:7803:2539
120.3.37.58 0:0:0:0:0:ffff:7803:253a
120.3.37.59 0:0:0:0:0:ffff:7803:253b
120.3.37.60 0:0:0:0:0:ffff:7803:253c


120.3.37.61 0:0:0:0:0:ffff:7803:253d
120.3.37.62 0:0:0:0:0:ffff:7803:253e
120.3.37.63 0:0:0:0:0:ffff:7803:253f
120.3.37.64 0:0:0:0:0:ffff:7803:2540
120.3.37.65 0:0:0:0:0:ffff:7803:2541
120.3.37.66 0:0:0:0:0:ffff:7803:2542
120.3.37.67 0:0:0:0:0:ffff:7803:2543
120.3.37.68 0:0:0:0:0:ffff:7803:2544
120.3.37.69 0:0:0:0:0:ffff:7803:2545
120.3.37.70 0:0:0:0:0:ffff:7803:2546
120.3.37.71 0:0:0:0:0:ffff:7803:2547
120.3.37.72 0:0:0:0:0:ffff:7803:2548
120.3.37.73 0:0:0:0:0:ffff:7803:2549
120.3.37.74 0:0:0:0:0:ffff:7803:254a
120.3.37.75 0:0:0:0:0:ffff:7803:254b
120.3.37.76 0:0:0:0:0:ffff:7803:254c
120.3.37.77 0:0:0:0:0:ffff:7803:254d
120.3.37.78 0:0:0:0:0:ffff:7803:254e
120.3.37.79 0:0:0:0:0:ffff:7803:254f
120.3.37.80 0:0:0:0:0:ffff:7803:2550
120.3.37.81 0:0:0:0:0:ffff:7803:2551
120.3.37.82 0:0:0:0:0:ffff:7803:2552
120.3.37.83 0:0:0:0:0:ffff:7803:2553
120.3.37.84 0:0:0:0:0:ffff:7803:2554
120.3.37.85 0:0:0:0:0:ffff:7803:2555
120.3.37.86 0:0:0:0:0:ffff:7803:2556
120.3.37.87 0:0:0:0:0:ffff:7803:2557
120.3.37.88 0:0:0:0:0:ffff:7803:2558
120.3.37.89 0:0:0:0:0:ffff:7803:2559
120.3.37.90 0:0:0:0:0:ffff:7803:255a
120.3.37.91 0:0:0:0:0:ffff:7803:255b
120.3.37.92 0:0:0:0:0:ffff:7803:255c
120.3.37.93 0:0:0:0:0:ffff:7803:255d
120.3.37.94 0:0:0:0:0:ffff:7803:255e
120.3.37.95 0:0:0:0:0:ffff:7803:255f
120.3.37.96 0:0:0:0:0:ffff:7803:2560
120.3.37.97 0:0:0:0:0:ffff:7803:2561
120.3.37.98 0:0:0:0:0:ffff:7803:2562
120.3.37.99 0:0:0:0:0:ffff:7803:2563
120.3.37.100 0:0:0:0:0:ffff:7803:2564
120.3.37.101 0:0:0:0:0:ffff:7803:2565
120.3.37.102 0:0:0:0:0:ffff:7803:2566
120.3.37.103 0:0:0:0:0:ffff:7803:2567
120.3.37.104 0:0:0:0:0:ffff:7803:2568
120.3.37.105 0:0:0:0:0:ffff:7803:2569
120.3.37.106 0:0:0:0:0:ffff:7803:256a
120.3.37.107 0:0:0:0:0:ffff:7803:256b
120.3.37.108 0:0:0:0:0:ffff:7803:256c
120.3.37.109 0:0:0:0:0:ffff:7803:256d
120.3.37.110 0:0:0:0:0:ffff:7803:256e
120.3.37.111 0:0:0:0:0:ffff:7803:256f
120.3.37.112 0:0:0:0:0:ffff:7803:2570
120.3.37.113 0:0:0:0:0:ffff:7803:2571
120.3.37.114 0:0:0:0:0:ffff:7803:2572
120.3.37.115 0:0:0:0:0:ffff:7803:2573
120.3.37.116 0:0:0:0:0:ffff:7803:2574
120.3.37.117 0:0:0:0:0:ffff:7803:2575
120.3.37.118 0:0:0:0:0:ffff:7803:2576
120.3.37.119 0:0:0:0:0:ffff:7803:2577
120.3.37.120 0:0:0:0:0:ffff:7803:2578


120.3.37.121 0:0:0:0:0:ffff:7803:2579
120.3.37.122 0:0:0:0:0:ffff:7803:257a
120.3.37.123 0:0:0:0:0:ffff:7803:257b
120.3.37.124 0:0:0:0:0:ffff:7803:257c
120.3.37.125 0:0:0:0:0:ffff:7803:257d
120.3.37.126 0:0:0:0:0:ffff:7803:257e
120.3.37.127 0:0:0:0:0:ffff:7803:257f
120.3.37.128 0:0:0:0:0:ffff:7803:2580
120.3.37.129 0:0:0:0:0:ffff:7803:2581
120.3.37.130 0:0:0:0:0:ffff:7803:2582
120.3.37.131 0:0:0:0:0:ffff:7803:2583
120.3.37.132 0:0:0:0:0:ffff:7803:2584
120.3.37.133 0:0:0:0:0:ffff:7803:2585
120.3.37.134 0:0:0:0:0:ffff:7803:2586
120.3.37.135 0:0:0:0:0:ffff:7803:2587
120.3.37.136 0:0:0:0:0:ffff:7803:2588
120.3.37.137 0:0:0:0:0:ffff:7803:2589
120.3.37.138 0:0:0:0:0:ffff:7803:258a
120.3.37.139 0:0:0:0:0:ffff:7803:258b
120.3.37.140 0:0:0:0:0:ffff:7803:258c
120.3.37.141 0:0:0:0:0:ffff:7803:258d
120.3.37.142 0:0:0:0:0:ffff:7803:258e
120.3.37.143 0:0:0:0:0:ffff:7803:258f
120.3.37.144 0:0:0:0:0:ffff:7803:2590
120.3.37.145 0:0:0:0:0:ffff:7803:2591
120.3.37.146 0:0:0:0:0:ffff:7803:2592
120.3.37.147 0:0:0:0:0:ffff:7803:2593
120.3.37.148 0:0:0:0:0:ffff:7803:2594
120.3.37.149 0:0:0:0:0:ffff:7803:2595
120.3.37.150 0:0:0:0:0:ffff:7803:2596
120.3.37.151 0:0:0:0:0:ffff:7803:2597
120.3.37.152 0:0:0:0:0:ffff:7803:2598
120.3.37.153 0:0:0:0:0:ffff:7803:2599
120.3.37.154 0:0:0:0:0:ffff:7803:259a
120.3.37.155 0:0:0:0:0:ffff:7803:259b
120.3.37.156 0:0:0:0:0:ffff:7803:259c
120.3.37.157 0:0:0:0:0:ffff:7803:259d
120.3.37.158 0:0:0:0:0:ffff:7803:259e
120.3.37.159 0:0:0:0:0:ffff:7803:259f
120.3.37.160 0:0:0:0:0:ffff:7803:25a0
120.3.37.161 0:0:0:0:0:ffff:7803:25a1
120.3.37.162 0:0:0:0:0:ffff:7803:25a2
120.3.37.163 0:0:0:0:0:ffff:7803:25a3
120.3.37.164 0:0:0:0:0:ffff:7803:25a4
120.3.37.165 0:0:0:0:0:ffff:7803:25a5
120.3.37.166 0:0:0:0:0:ffff:7803:25a6
120.3.37.167 0:0:0:0:0:ffff:7803:25a7
120.3.37.168 0:0:0:0:0:ffff:7803:25a8
120.3.37.169 0:0:0:0:0:ffff:7803:25a9
120.3.37.170 0:0:0:0:0:ffff:7803:25aa
120.3.37.171 0:0:0:0:0:ffff:7803:25ab
120.3.37.172 0:0:0:0:0:ffff:7803:25ac
120.3.37.173 0:0:0:0:0:ffff:7803:25ad
120.3.37.174 0:0:0:0:0:ffff:7803:25ae
120.3.37.175 0:0:0:0:0:ffff:7803:25af
120.3.37.176 0:0:0:0:0:ffff:7803:25b0
120.3.37.177 0:0:0:0:0:ffff:7803:25b1
120.3.37.178 0:0:0:0:0:ffff:7803:25b2
120.3.37.179 0:0:0:0:0:ffff:7803:25b3
120.3.37.180 0:0:0:0:0:ffff:7803:25b4


120.3.37.181 0:0:0:0:0:ffff:7803:25b5
120.3.37.182 0:0:0:0:0:ffff:7803:25b6
120.3.37.183 0:0:0:0:0:ffff:7803:25b7
120.3.37.184 0:0:0:0:0:ffff:7803:25b8
120.3.37.185 0:0:0:0:0:ffff:7803:25b9
120.3.37.186 0:0:0:0:0:ffff:7803:25ba
120.3.37.187 0:0:0:0:0:ffff:7803:25bb
120.3.37.188 0:0:0:0:0:ffff:7803:25bc
120.3.37.189 0:0:0:0:0:ffff:7803:25bd
120.3.37.190 0:0:0:0:0:ffff:7803:25be
120.3.37.191 0:0:0:0:0:ffff:7803:25bf
120.3.37.192 0:0:0:0:0:ffff:7803:25c0
120.3.37.193 0:0:0:0:0:ffff:7803:25c1
120.3.37.194 0:0:0:0:0:ffff:7803:25c2
120.3.37.195 0:0:0:0:0:ffff:7803:25c3
120.3.37.196 0:0:0:0:0:ffff:7803:25c4
120.3.37.197 0:0:0:0:0:ffff:7803:25c5
120.3.37.198 0:0:0:0:0:ffff:7803:25c6
120.3.37.199 0:0:0:0:0:ffff:7803:25c7
120.3.37.200 0:0:0:0:0:ffff:7803:25c8
120.3.37.201 0:0:0:0:0:ffff:7803:25c9
120.3.37.202 0:0:0:0:0:ffff:7803:25ca
120.3.37.203 0:0:0:0:0:ffff:7803:25cb
120.3.37.204 0:0:0:0:0:ffff:7803:25cc
120.3.37.205 0:0:0:0:0:ffff:7803:25cd
120.3.37.206 0:0:0:0:0:ffff:7803:25ce
120.3.37.207 0:0:0:0:0:ffff:7803:25cf
120.3.37.208 0:0:0:0:0:ffff:7803:25d0
120.3.37.209 0:0:0:0:0:ffff:7803:25d1
120.3.37.210 0:0:0:0:0:ffff:7803:25d2
120.3.37.211 0:0:0:0:0:ffff:7803:25d3
120.3.37.212 0:0:0:0:0:ffff:7803:25d4
120.3.37.213 0:0:0:0:0:ffff:7803:25d5
120.3.37.214 0:0:0:0:0:ffff:7803:25d6
120.3.37.215 0:0:0:0:0:ffff:7803:25d7
120.3.37.216 0:0:0:0:0:ffff:7803:25d8
120.3.37.217 0:0:0:0:0:ffff:7803:25d9
120.3.37.218 0:0:0:0:0:ffff:7803:25da
120.3.37.219 0:0:0:0:0:ffff:7803:25db
120.3.37.220 0:0:0:0:0:ffff:7803:25dc
120.3.37.221 0:0:0:0:0:ffff:7803:25dd
120.3.37.222 0:0:0:0:0:ffff:7803:25de
120.3.37.223 0:0:0:0:0:ffff:7803:25df
120.3.37.224 0:0:0:0:0:ffff:7803:25e0
120.3.37.225 0:0:0:0:0:ffff:7803:25e1
120.3.37.226 0:0:0:0:0:ffff:7803:25e2
120.3.37.227 0:0:0:0:0:ffff:7803:25e3
120.3.37.228 0:0:0:0:0:ffff:7803:25e4
120.3.37.229 0:0:0:0:0:ffff:7803:25e5
120.3.37.230 0:0:0:0:0:ffff:7803:25e6
120.3.37.231 0:0:0:0:0:ffff:7803:25e7
120.3.37.232 0:0:0:0:0:ffff:7803:25e8
120.3.37.233 0:0:0:0:0:ffff:7803:25e9
120.3.37.234 0:0:0:0:0:ffff:7803:25ea
120.3.37.235 0:0:0:0:0:ffff:7803:25eb
120.3.37.236 0:0:0:0:0:ffff:7803:25ec
120.3.37.237 0:0:0:0:0:ffff:7803:25ed
120.3.37.238 0:0:0:0:0:ffff:7803:25ee
120.3.37.239 0:0:0:0:0:ffff:7803:25ef
120.3.37.240 0:0:0:0:0:ffff:7803:25f0
120.3.37.241 0:0:0:0:0:ffff:7803:25f1
120.3.37.242 0:0:0:0:0:ffff:7803:25f2
120.3.37.243 0:0:0:0:0:ffff:7803:25f3
120.3.37.244 0:0:0:0:0:ffff:7803:25f4
120.3.37.245 0:0:0:0:0:ffff:7803:25f5
120.3.37.246 0:0:0:0:0:ffff:7803:25f6
120.3.37.247 0:0:0:0:0:ffff:7803:25f7
120.3.37.248 0:0:0:0:0:ffff:7803:25f8
120.3.37.249 0:0:0:0:0:ffff:7803:25f9
120.3.37.250 0:0:0:0:0:ffff:7803:25fa
120.3.37.251 0:0:0:0:0:ffff:7803:25fb
120.3.37.252 0:0:0:0:0:ffff:7803:25fc
120.3.37.253 0:0:0:0:0:ffff:7803:25fd
120.3.37.254 0:0:0:0:0:ffff:7803:25fe
120.3.37.255 0:0:0:0:0:ffff:7803:25ff


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.