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
197.151.37.1 0:0:0:0:0:ffff:c597:2501
197.151.37.2 0:0:0:0:0:ffff:c597:2502
197.151.37.3 0:0:0:0:0:ffff:c597:2503
197.151.37.4 0:0:0:0:0:ffff:c597:2504
197.151.37.5 0:0:0:0:0:ffff:c597:2505
197.151.37.6 0:0:0:0:0:ffff:c597:2506
197.151.37.7 0:0:0:0:0:ffff:c597:2507
197.151.37.8 0:0:0:0:0:ffff:c597:2508
197.151.37.9 0:0:0:0:0:ffff:c597:2509
197.151.37.10 0:0:0:0:0:ffff:c597:250a
197.151.37.11 0:0:0:0:0:ffff:c597:250b
197.151.37.12 0:0:0:0:0:ffff:c597:250c
197.151.37.13 0:0:0:0:0:ffff:c597:250d
197.151.37.14 0:0:0:0:0:ffff:c597:250e
197.151.37.15 0:0:0:0:0:ffff:c597:250f
197.151.37.16 0:0:0:0:0:ffff:c597:2510
197.151.37.17 0:0:0:0:0:ffff:c597:2511
197.151.37.18 0:0:0:0:0:ffff:c597:2512
197.151.37.19 0:0:0:0:0:ffff:c597:2513
197.151.37.20 0:0:0:0:0:ffff:c597:2514
197.151.37.21 0:0:0:0:0:ffff:c597:2515
197.151.37.22 0:0:0:0:0:ffff:c597:2516
197.151.37.23 0:0:0:0:0:ffff:c597:2517
197.151.37.24 0:0:0:0:0:ffff:c597:2518
197.151.37.25 0:0:0:0:0:ffff:c597:2519
197.151.37.26 0:0:0:0:0:ffff:c597:251a
197.151.37.27 0:0:0:0:0:ffff:c597:251b
197.151.37.28 0:0:0:0:0:ffff:c597:251c
197.151.37.29 0:0:0:0:0:ffff:c597:251d
197.151.37.30 0:0:0:0:0:ffff:c597:251e
197.151.37.31 0:0:0:0:0:ffff:c597:251f
197.151.37.32 0:0:0:0:0:ffff:c597:2520
197.151.37.33 0:0:0:0:0:ffff:c597:2521
197.151.37.34 0:0:0:0:0:ffff:c597:2522
197.151.37.35 0:0:0:0:0:ffff:c597:2523
197.151.37.36 0:0:0:0:0:ffff:c597:2524
197.151.37.37 0:0:0:0:0:ffff:c597:2525
197.151.37.38 0:0:0:0:0:ffff:c597:2526
197.151.37.39 0:0:0:0:0:ffff:c597:2527
197.151.37.40 0:0:0:0:0:ffff:c597:2528
197.151.37.41 0:0:0:0:0:ffff:c597:2529
197.151.37.42 0:0:0:0:0:ffff:c597:252a
197.151.37.43 0:0:0:0:0:ffff:c597:252b
197.151.37.44 0:0:0:0:0:ffff:c597:252c
197.151.37.45 0:0:0:0:0:ffff:c597:252d
197.151.37.46 0:0:0:0:0:ffff:c597:252e
197.151.37.47 0:0:0:0:0:ffff:c597:252f
197.151.37.48 0:0:0:0:0:ffff:c597:2530
197.151.37.49 0:0:0:0:0:ffff:c597:2531
197.151.37.50 0:0:0:0:0:ffff:c597:2532
197.151.37.51 0:0:0:0:0:ffff:c597:2533
197.151.37.52 0:0:0:0:0:ffff:c597:2534
197.151.37.53 0:0:0:0:0:ffff:c597:2535
197.151.37.54 0:0:0:0:0:ffff:c597:2536
197.151.37.55 0:0:0:0:0:ffff:c597:2537
197.151.37.56 0:0:0:0:0:ffff:c597:2538
197.151.37.57 0:0:0:0:0:ffff:c597:2539
197.151.37.58 0:0:0:0:0:ffff:c597:253a
197.151.37.59 0:0:0:0:0:ffff:c597:253b
197.151.37.60 0:0:0:0:0:ffff:c597:253c


197.151.37.61 0:0:0:0:0:ffff:c597:253d
197.151.37.62 0:0:0:0:0:ffff:c597:253e
197.151.37.63 0:0:0:0:0:ffff:c597:253f
197.151.37.64 0:0:0:0:0:ffff:c597:2540
197.151.37.65 0:0:0:0:0:ffff:c597:2541
197.151.37.66 0:0:0:0:0:ffff:c597:2542
197.151.37.67 0:0:0:0:0:ffff:c597:2543
197.151.37.68 0:0:0:0:0:ffff:c597:2544
197.151.37.69 0:0:0:0:0:ffff:c597:2545
197.151.37.70 0:0:0:0:0:ffff:c597:2546
197.151.37.71 0:0:0:0:0:ffff:c597:2547
197.151.37.72 0:0:0:0:0:ffff:c597:2548
197.151.37.73 0:0:0:0:0:ffff:c597:2549
197.151.37.74 0:0:0:0:0:ffff:c597:254a
197.151.37.75 0:0:0:0:0:ffff:c597:254b
197.151.37.76 0:0:0:0:0:ffff:c597:254c
197.151.37.77 0:0:0:0:0:ffff:c597:254d
197.151.37.78 0:0:0:0:0:ffff:c597:254e
197.151.37.79 0:0:0:0:0:ffff:c597:254f
197.151.37.80 0:0:0:0:0:ffff:c597:2550
197.151.37.81 0:0:0:0:0:ffff:c597:2551
197.151.37.82 0:0:0:0:0:ffff:c597:2552
197.151.37.83 0:0:0:0:0:ffff:c597:2553
197.151.37.84 0:0:0:0:0:ffff:c597:2554
197.151.37.85 0:0:0:0:0:ffff:c597:2555
197.151.37.86 0:0:0:0:0:ffff:c597:2556
197.151.37.87 0:0:0:0:0:ffff:c597:2557
197.151.37.88 0:0:0:0:0:ffff:c597:2558
197.151.37.89 0:0:0:0:0:ffff:c597:2559
197.151.37.90 0:0:0:0:0:ffff:c597:255a
197.151.37.91 0:0:0:0:0:ffff:c597:255b
197.151.37.92 0:0:0:0:0:ffff:c597:255c
197.151.37.93 0:0:0:0:0:ffff:c597:255d
197.151.37.94 0:0:0:0:0:ffff:c597:255e
197.151.37.95 0:0:0:0:0:ffff:c597:255f
197.151.37.96 0:0:0:0:0:ffff:c597:2560
197.151.37.97 0:0:0:0:0:ffff:c597:2561
197.151.37.98 0:0:0:0:0:ffff:c597:2562
197.151.37.99 0:0:0:0:0:ffff:c597:2563
197.151.37.100 0:0:0:0:0:ffff:c597:2564
197.151.37.101 0:0:0:0:0:ffff:c597:2565
197.151.37.102 0:0:0:0:0:ffff:c597:2566
197.151.37.103 0:0:0:0:0:ffff:c597:2567
197.151.37.104 0:0:0:0:0:ffff:c597:2568
197.151.37.105 0:0:0:0:0:ffff:c597:2569
197.151.37.106 0:0:0:0:0:ffff:c597:256a
197.151.37.107 0:0:0:0:0:ffff:c597:256b
197.151.37.108 0:0:0:0:0:ffff:c597:256c
197.151.37.109 0:0:0:0:0:ffff:c597:256d
197.151.37.110 0:0:0:0:0:ffff:c597:256e
197.151.37.111 0:0:0:0:0:ffff:c597:256f
197.151.37.112 0:0:0:0:0:ffff:c597:2570
197.151.37.113 0:0:0:0:0:ffff:c597:2571
197.151.37.114 0:0:0:0:0:ffff:c597:2572
197.151.37.115 0:0:0:0:0:ffff:c597:2573
197.151.37.116 0:0:0:0:0:ffff:c597:2574
197.151.37.117 0:0:0:0:0:ffff:c597:2575
197.151.37.118 0:0:0:0:0:ffff:c597:2576
197.151.37.119 0:0:0:0:0:ffff:c597:2577
197.151.37.120 0:0:0:0:0:ffff:c597:2578


197.151.37.121 0:0:0:0:0:ffff:c597:2579
197.151.37.122 0:0:0:0:0:ffff:c597:257a
197.151.37.123 0:0:0:0:0:ffff:c597:257b
197.151.37.124 0:0:0:0:0:ffff:c597:257c
197.151.37.125 0:0:0:0:0:ffff:c597:257d
197.151.37.126 0:0:0:0:0:ffff:c597:257e
197.151.37.127 0:0:0:0:0:ffff:c597:257f
197.151.37.128 0:0:0:0:0:ffff:c597:2580
197.151.37.129 0:0:0:0:0:ffff:c597:2581
197.151.37.130 0:0:0:0:0:ffff:c597:2582
197.151.37.131 0:0:0:0:0:ffff:c597:2583
197.151.37.132 0:0:0:0:0:ffff:c597:2584
197.151.37.133 0:0:0:0:0:ffff:c597:2585
197.151.37.134 0:0:0:0:0:ffff:c597:2586
197.151.37.135 0:0:0:0:0:ffff:c597:2587
197.151.37.136 0:0:0:0:0:ffff:c597:2588
197.151.37.137 0:0:0:0:0:ffff:c597:2589
197.151.37.138 0:0:0:0:0:ffff:c597:258a
197.151.37.139 0:0:0:0:0:ffff:c597:258b
197.151.37.140 0:0:0:0:0:ffff:c597:258c
197.151.37.141 0:0:0:0:0:ffff:c597:258d
197.151.37.142 0:0:0:0:0:ffff:c597:258e
197.151.37.143 0:0:0:0:0:ffff:c597:258f
197.151.37.144 0:0:0:0:0:ffff:c597:2590
197.151.37.145 0:0:0:0:0:ffff:c597:2591
197.151.37.146 0:0:0:0:0:ffff:c597:2592
197.151.37.147 0:0:0:0:0:ffff:c597:2593
197.151.37.148 0:0:0:0:0:ffff:c597:2594
197.151.37.149 0:0:0:0:0:ffff:c597:2595
197.151.37.150 0:0:0:0:0:ffff:c597:2596
197.151.37.151 0:0:0:0:0:ffff:c597:2597
197.151.37.152 0:0:0:0:0:ffff:c597:2598
197.151.37.153 0:0:0:0:0:ffff:c597:2599
197.151.37.154 0:0:0:0:0:ffff:c597:259a
197.151.37.155 0:0:0:0:0:ffff:c597:259b
197.151.37.156 0:0:0:0:0:ffff:c597:259c
197.151.37.157 0:0:0:0:0:ffff:c597:259d
197.151.37.158 0:0:0:0:0:ffff:c597:259e
197.151.37.159 0:0:0:0:0:ffff:c597:259f
197.151.37.160 0:0:0:0:0:ffff:c597:25a0
197.151.37.161 0:0:0:0:0:ffff:c597:25a1
197.151.37.162 0:0:0:0:0:ffff:c597:25a2
197.151.37.163 0:0:0:0:0:ffff:c597:25a3
197.151.37.164 0:0:0:0:0:ffff:c597:25a4
197.151.37.165 0:0:0:0:0:ffff:c597:25a5
197.151.37.166 0:0:0:0:0:ffff:c597:25a6
197.151.37.167 0:0:0:0:0:ffff:c597:25a7
197.151.37.168 0:0:0:0:0:ffff:c597:25a8
197.151.37.169 0:0:0:0:0:ffff:c597:25a9
197.151.37.170 0:0:0:0:0:ffff:c597:25aa
197.151.37.171 0:0:0:0:0:ffff:c597:25ab
197.151.37.172 0:0:0:0:0:ffff:c597:25ac
197.151.37.173 0:0:0:0:0:ffff:c597:25ad
197.151.37.174 0:0:0:0:0:ffff:c597:25ae
197.151.37.175 0:0:0:0:0:ffff:c597:25af
197.151.37.176 0:0:0:0:0:ffff:c597:25b0
197.151.37.177 0:0:0:0:0:ffff:c597:25b1
197.151.37.178 0:0:0:0:0:ffff:c597:25b2
197.151.37.179 0:0:0:0:0:ffff:c597:25b3
197.151.37.180 0:0:0:0:0:ffff:c597:25b4


197.151.37.181 0:0:0:0:0:ffff:c597:25b5
197.151.37.182 0:0:0:0:0:ffff:c597:25b6
197.151.37.183 0:0:0:0:0:ffff:c597:25b7
197.151.37.184 0:0:0:0:0:ffff:c597:25b8
197.151.37.185 0:0:0:0:0:ffff:c597:25b9
197.151.37.186 0:0:0:0:0:ffff:c597:25ba
197.151.37.187 0:0:0:0:0:ffff:c597:25bb
197.151.37.188 0:0:0:0:0:ffff:c597:25bc
197.151.37.189 0:0:0:0:0:ffff:c597:25bd
197.151.37.190 0:0:0:0:0:ffff:c597:25be
197.151.37.191 0:0:0:0:0:ffff:c597:25bf
197.151.37.192 0:0:0:0:0:ffff:c597:25c0
197.151.37.193 0:0:0:0:0:ffff:c597:25c1
197.151.37.194 0:0:0:0:0:ffff:c597:25c2
197.151.37.195 0:0:0:0:0:ffff:c597:25c3
197.151.37.196 0:0:0:0:0:ffff:c597:25c4
197.151.37.197 0:0:0:0:0:ffff:c597:25c5
197.151.37.198 0:0:0:0:0:ffff:c597:25c6
197.151.37.199 0:0:0:0:0:ffff:c597:25c7
197.151.37.200 0:0:0:0:0:ffff:c597:25c8
197.151.37.201 0:0:0:0:0:ffff:c597:25c9
197.151.37.202 0:0:0:0:0:ffff:c597:25ca
197.151.37.203 0:0:0:0:0:ffff:c597:25cb
197.151.37.204 0:0:0:0:0:ffff:c597:25cc
197.151.37.205 0:0:0:0:0:ffff:c597:25cd
197.151.37.206 0:0:0:0:0:ffff:c597:25ce
197.151.37.207 0:0:0:0:0:ffff:c597:25cf
197.151.37.208 0:0:0:0:0:ffff:c597:25d0
197.151.37.209 0:0:0:0:0:ffff:c597:25d1
197.151.37.210 0:0:0:0:0:ffff:c597:25d2
197.151.37.211 0:0:0:0:0:ffff:c597:25d3
197.151.37.212 0:0:0:0:0:ffff:c597:25d4
197.151.37.213 0:0:0:0:0:ffff:c597:25d5
197.151.37.214 0:0:0:0:0:ffff:c597:25d6
197.151.37.215 0:0:0:0:0:ffff:c597:25d7
197.151.37.216 0:0:0:0:0:ffff:c597:25d8
197.151.37.217 0:0:0:0:0:ffff:c597:25d9
197.151.37.218 0:0:0:0:0:ffff:c597:25da
197.151.37.219 0:0:0:0:0:ffff:c597:25db
197.151.37.220 0:0:0:0:0:ffff:c597:25dc
197.151.37.221 0:0:0:0:0:ffff:c597:25dd
197.151.37.222 0:0:0:0:0:ffff:c597:25de
197.151.37.223 0:0:0:0:0:ffff:c597:25df
197.151.37.224 0:0:0:0:0:ffff:c597:25e0
197.151.37.225 0:0:0:0:0:ffff:c597:25e1
197.151.37.226 0:0:0:0:0:ffff:c597:25e2
197.151.37.227 0:0:0:0:0:ffff:c597:25e3
197.151.37.228 0:0:0:0:0:ffff:c597:25e4
197.151.37.229 0:0:0:0:0:ffff:c597:25e5
197.151.37.230 0:0:0:0:0:ffff:c597:25e6
197.151.37.231 0:0:0:0:0:ffff:c597:25e7
197.151.37.232 0:0:0:0:0:ffff:c597:25e8
197.151.37.233 0:0:0:0:0:ffff:c597:25e9
197.151.37.234 0:0:0:0:0:ffff:c597:25ea
197.151.37.235 0:0:0:0:0:ffff:c597:25eb
197.151.37.236 0:0:0:0:0:ffff:c597:25ec
197.151.37.237 0:0:0:0:0:ffff:c597:25ed
197.151.37.238 0:0:0:0:0:ffff:c597:25ee
197.151.37.239 0:0:0:0:0:ffff:c597:25ef
197.151.37.240 0:0:0:0:0:ffff:c597:25f0
197.151.37.241 0:0:0:0:0:ffff:c597:25f1
197.151.37.242 0:0:0:0:0:ffff:c597:25f2
197.151.37.243 0:0:0:0:0:ffff:c597:25f3
197.151.37.244 0:0:0:0:0:ffff:c597:25f4
197.151.37.245 0:0:0:0:0:ffff:c597:25f5
197.151.37.246 0:0:0:0:0:ffff:c597:25f6
197.151.37.247 0:0:0:0:0:ffff:c597:25f7
197.151.37.248 0:0:0:0:0:ffff:c597:25f8
197.151.37.249 0:0:0:0:0:ffff:c597:25f9
197.151.37.250 0:0:0:0:0:ffff:c597:25fa
197.151.37.251 0:0:0:0:0:ffff:c597:25fb
197.151.37.252 0:0:0:0:0:ffff:c597:25fc
197.151.37.253 0:0:0:0:0:ffff:c597:25fd
197.151.37.254 0:0:0:0:0:ffff:c597:25fe
197.151.37.255 0:0:0:0:0:ffff:c597:25ff


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.