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
151.131.20.1 0:0:0:0:0:ffff:9783:1401
151.131.20.2 0:0:0:0:0:ffff:9783:1402
151.131.20.3 0:0:0:0:0:ffff:9783:1403
151.131.20.4 0:0:0:0:0:ffff:9783:1404
151.131.20.5 0:0:0:0:0:ffff:9783:1405
151.131.20.6 0:0:0:0:0:ffff:9783:1406
151.131.20.7 0:0:0:0:0:ffff:9783:1407
151.131.20.8 0:0:0:0:0:ffff:9783:1408
151.131.20.9 0:0:0:0:0:ffff:9783:1409
151.131.20.10 0:0:0:0:0:ffff:9783:140a
151.131.20.11 0:0:0:0:0:ffff:9783:140b
151.131.20.12 0:0:0:0:0:ffff:9783:140c
151.131.20.13 0:0:0:0:0:ffff:9783:140d
151.131.20.14 0:0:0:0:0:ffff:9783:140e
151.131.20.15 0:0:0:0:0:ffff:9783:140f
151.131.20.16 0:0:0:0:0:ffff:9783:1410
151.131.20.17 0:0:0:0:0:ffff:9783:1411
151.131.20.18 0:0:0:0:0:ffff:9783:1412
151.131.20.19 0:0:0:0:0:ffff:9783:1413
151.131.20.20 0:0:0:0:0:ffff:9783:1414
151.131.20.21 0:0:0:0:0:ffff:9783:1415
151.131.20.22 0:0:0:0:0:ffff:9783:1416
151.131.20.23 0:0:0:0:0:ffff:9783:1417
151.131.20.24 0:0:0:0:0:ffff:9783:1418
151.131.20.25 0:0:0:0:0:ffff:9783:1419
151.131.20.26 0:0:0:0:0:ffff:9783:141a
151.131.20.27 0:0:0:0:0:ffff:9783:141b
151.131.20.28 0:0:0:0:0:ffff:9783:141c
151.131.20.29 0:0:0:0:0:ffff:9783:141d
151.131.20.30 0:0:0:0:0:ffff:9783:141e
151.131.20.31 0:0:0:0:0:ffff:9783:141f
151.131.20.32 0:0:0:0:0:ffff:9783:1420
151.131.20.33 0:0:0:0:0:ffff:9783:1421
151.131.20.34 0:0:0:0:0:ffff:9783:1422
151.131.20.35 0:0:0:0:0:ffff:9783:1423
151.131.20.36 0:0:0:0:0:ffff:9783:1424
151.131.20.37 0:0:0:0:0:ffff:9783:1425
151.131.20.38 0:0:0:0:0:ffff:9783:1426
151.131.20.39 0:0:0:0:0:ffff:9783:1427
151.131.20.40 0:0:0:0:0:ffff:9783:1428
151.131.20.41 0:0:0:0:0:ffff:9783:1429
151.131.20.42 0:0:0:0:0:ffff:9783:142a
151.131.20.43 0:0:0:0:0:ffff:9783:142b
151.131.20.44 0:0:0:0:0:ffff:9783:142c
151.131.20.45 0:0:0:0:0:ffff:9783:142d
151.131.20.46 0:0:0:0:0:ffff:9783:142e
151.131.20.47 0:0:0:0:0:ffff:9783:142f
151.131.20.48 0:0:0:0:0:ffff:9783:1430
151.131.20.49 0:0:0:0:0:ffff:9783:1431
151.131.20.50 0:0:0:0:0:ffff:9783:1432
151.131.20.51 0:0:0:0:0:ffff:9783:1433
151.131.20.52 0:0:0:0:0:ffff:9783:1434
151.131.20.53 0:0:0:0:0:ffff:9783:1435
151.131.20.54 0:0:0:0:0:ffff:9783:1436
151.131.20.55 0:0:0:0:0:ffff:9783:1437
151.131.20.56 0:0:0:0:0:ffff:9783:1438
151.131.20.57 0:0:0:0:0:ffff:9783:1439
151.131.20.58 0:0:0:0:0:ffff:9783:143a
151.131.20.59 0:0:0:0:0:ffff:9783:143b
151.131.20.60 0:0:0:0:0:ffff:9783:143c


151.131.20.61 0:0:0:0:0:ffff:9783:143d
151.131.20.62 0:0:0:0:0:ffff:9783:143e
151.131.20.63 0:0:0:0:0:ffff:9783:143f
151.131.20.64 0:0:0:0:0:ffff:9783:1440
151.131.20.65 0:0:0:0:0:ffff:9783:1441
151.131.20.66 0:0:0:0:0:ffff:9783:1442
151.131.20.67 0:0:0:0:0:ffff:9783:1443
151.131.20.68 0:0:0:0:0:ffff:9783:1444
151.131.20.69 0:0:0:0:0:ffff:9783:1445
151.131.20.70 0:0:0:0:0:ffff:9783:1446
151.131.20.71 0:0:0:0:0:ffff:9783:1447
151.131.20.72 0:0:0:0:0:ffff:9783:1448
151.131.20.73 0:0:0:0:0:ffff:9783:1449
151.131.20.74 0:0:0:0:0:ffff:9783:144a
151.131.20.75 0:0:0:0:0:ffff:9783:144b
151.131.20.76 0:0:0:0:0:ffff:9783:144c
151.131.20.77 0:0:0:0:0:ffff:9783:144d
151.131.20.78 0:0:0:0:0:ffff:9783:144e
151.131.20.79 0:0:0:0:0:ffff:9783:144f
151.131.20.80 0:0:0:0:0:ffff:9783:1450
151.131.20.81 0:0:0:0:0:ffff:9783:1451
151.131.20.82 0:0:0:0:0:ffff:9783:1452
151.131.20.83 0:0:0:0:0:ffff:9783:1453
151.131.20.84 0:0:0:0:0:ffff:9783:1454
151.131.20.85 0:0:0:0:0:ffff:9783:1455
151.131.20.86 0:0:0:0:0:ffff:9783:1456
151.131.20.87 0:0:0:0:0:ffff:9783:1457
151.131.20.88 0:0:0:0:0:ffff:9783:1458
151.131.20.89 0:0:0:0:0:ffff:9783:1459
151.131.20.90 0:0:0:0:0:ffff:9783:145a
151.131.20.91 0:0:0:0:0:ffff:9783:145b
151.131.20.92 0:0:0:0:0:ffff:9783:145c
151.131.20.93 0:0:0:0:0:ffff:9783:145d
151.131.20.94 0:0:0:0:0:ffff:9783:145e
151.131.20.95 0:0:0:0:0:ffff:9783:145f
151.131.20.96 0:0:0:0:0:ffff:9783:1460
151.131.20.97 0:0:0:0:0:ffff:9783:1461
151.131.20.98 0:0:0:0:0:ffff:9783:1462
151.131.20.99 0:0:0:0:0:ffff:9783:1463
151.131.20.100 0:0:0:0:0:ffff:9783:1464
151.131.20.101 0:0:0:0:0:ffff:9783:1465
151.131.20.102 0:0:0:0:0:ffff:9783:1466
151.131.20.103 0:0:0:0:0:ffff:9783:1467
151.131.20.104 0:0:0:0:0:ffff:9783:1468
151.131.20.105 0:0:0:0:0:ffff:9783:1469
151.131.20.106 0:0:0:0:0:ffff:9783:146a
151.131.20.107 0:0:0:0:0:ffff:9783:146b
151.131.20.108 0:0:0:0:0:ffff:9783:146c
151.131.20.109 0:0:0:0:0:ffff:9783:146d
151.131.20.110 0:0:0:0:0:ffff:9783:146e
151.131.20.111 0:0:0:0:0:ffff:9783:146f
151.131.20.112 0:0:0:0:0:ffff:9783:1470
151.131.20.113 0:0:0:0:0:ffff:9783:1471
151.131.20.114 0:0:0:0:0:ffff:9783:1472
151.131.20.115 0:0:0:0:0:ffff:9783:1473
151.131.20.116 0:0:0:0:0:ffff:9783:1474
151.131.20.117 0:0:0:0:0:ffff:9783:1475
151.131.20.118 0:0:0:0:0:ffff:9783:1476
151.131.20.119 0:0:0:0:0:ffff:9783:1477
151.131.20.120 0:0:0:0:0:ffff:9783:1478


151.131.20.121 0:0:0:0:0:ffff:9783:1479
151.131.20.122 0:0:0:0:0:ffff:9783:147a
151.131.20.123 0:0:0:0:0:ffff:9783:147b
151.131.20.124 0:0:0:0:0:ffff:9783:147c
151.131.20.125 0:0:0:0:0:ffff:9783:147d
151.131.20.126 0:0:0:0:0:ffff:9783:147e
151.131.20.127 0:0:0:0:0:ffff:9783:147f
151.131.20.128 0:0:0:0:0:ffff:9783:1480
151.131.20.129 0:0:0:0:0:ffff:9783:1481
151.131.20.130 0:0:0:0:0:ffff:9783:1482
151.131.20.131 0:0:0:0:0:ffff:9783:1483
151.131.20.132 0:0:0:0:0:ffff:9783:1484
151.131.20.133 0:0:0:0:0:ffff:9783:1485
151.131.20.134 0:0:0:0:0:ffff:9783:1486
151.131.20.135 0:0:0:0:0:ffff:9783:1487
151.131.20.136 0:0:0:0:0:ffff:9783:1488
151.131.20.137 0:0:0:0:0:ffff:9783:1489
151.131.20.138 0:0:0:0:0:ffff:9783:148a
151.131.20.139 0:0:0:0:0:ffff:9783:148b
151.131.20.140 0:0:0:0:0:ffff:9783:148c
151.131.20.141 0:0:0:0:0:ffff:9783:148d
151.131.20.142 0:0:0:0:0:ffff:9783:148e
151.131.20.143 0:0:0:0:0:ffff:9783:148f
151.131.20.144 0:0:0:0:0:ffff:9783:1490
151.131.20.145 0:0:0:0:0:ffff:9783:1491
151.131.20.146 0:0:0:0:0:ffff:9783:1492
151.131.20.147 0:0:0:0:0:ffff:9783:1493
151.131.20.148 0:0:0:0:0:ffff:9783:1494
151.131.20.149 0:0:0:0:0:ffff:9783:1495
151.131.20.150 0:0:0:0:0:ffff:9783:1496
151.131.20.151 0:0:0:0:0:ffff:9783:1497
151.131.20.152 0:0:0:0:0:ffff:9783:1498
151.131.20.153 0:0:0:0:0:ffff:9783:1499
151.131.20.154 0:0:0:0:0:ffff:9783:149a
151.131.20.155 0:0:0:0:0:ffff:9783:149b
151.131.20.156 0:0:0:0:0:ffff:9783:149c
151.131.20.157 0:0:0:0:0:ffff:9783:149d
151.131.20.158 0:0:0:0:0:ffff:9783:149e
151.131.20.159 0:0:0:0:0:ffff:9783:149f
151.131.20.160 0:0:0:0:0:ffff:9783:14a0
151.131.20.161 0:0:0:0:0:ffff:9783:14a1
151.131.20.162 0:0:0:0:0:ffff:9783:14a2
151.131.20.163 0:0:0:0:0:ffff:9783:14a3
151.131.20.164 0:0:0:0:0:ffff:9783:14a4
151.131.20.165 0:0:0:0:0:ffff:9783:14a5
151.131.20.166 0:0:0:0:0:ffff:9783:14a6
151.131.20.167 0:0:0:0:0:ffff:9783:14a7
151.131.20.168 0:0:0:0:0:ffff:9783:14a8
151.131.20.169 0:0:0:0:0:ffff:9783:14a9
151.131.20.170 0:0:0:0:0:ffff:9783:14aa
151.131.20.171 0:0:0:0:0:ffff:9783:14ab
151.131.20.172 0:0:0:0:0:ffff:9783:14ac
151.131.20.173 0:0:0:0:0:ffff:9783:14ad
151.131.20.174 0:0:0:0:0:ffff:9783:14ae
151.131.20.175 0:0:0:0:0:ffff:9783:14af
151.131.20.176 0:0:0:0:0:ffff:9783:14b0
151.131.20.177 0:0:0:0:0:ffff:9783:14b1
151.131.20.178 0:0:0:0:0:ffff:9783:14b2
151.131.20.179 0:0:0:0:0:ffff:9783:14b3
151.131.20.180 0:0:0:0:0:ffff:9783:14b4


151.131.20.181 0:0:0:0:0:ffff:9783:14b5
151.131.20.182 0:0:0:0:0:ffff:9783:14b6
151.131.20.183 0:0:0:0:0:ffff:9783:14b7
151.131.20.184 0:0:0:0:0:ffff:9783:14b8
151.131.20.185 0:0:0:0:0:ffff:9783:14b9
151.131.20.186 0:0:0:0:0:ffff:9783:14ba
151.131.20.187 0:0:0:0:0:ffff:9783:14bb
151.131.20.188 0:0:0:0:0:ffff:9783:14bc
151.131.20.189 0:0:0:0:0:ffff:9783:14bd
151.131.20.190 0:0:0:0:0:ffff:9783:14be
151.131.20.191 0:0:0:0:0:ffff:9783:14bf
151.131.20.192 0:0:0:0:0:ffff:9783:14c0
151.131.20.193 0:0:0:0:0:ffff:9783:14c1
151.131.20.194 0:0:0:0:0:ffff:9783:14c2
151.131.20.195 0:0:0:0:0:ffff:9783:14c3
151.131.20.196 0:0:0:0:0:ffff:9783:14c4
151.131.20.197 0:0:0:0:0:ffff:9783:14c5
151.131.20.198 0:0:0:0:0:ffff:9783:14c6
151.131.20.199 0:0:0:0:0:ffff:9783:14c7
151.131.20.200 0:0:0:0:0:ffff:9783:14c8
151.131.20.201 0:0:0:0:0:ffff:9783:14c9
151.131.20.202 0:0:0:0:0:ffff:9783:14ca
151.131.20.203 0:0:0:0:0:ffff:9783:14cb
151.131.20.204 0:0:0:0:0:ffff:9783:14cc
151.131.20.205 0:0:0:0:0:ffff:9783:14cd
151.131.20.206 0:0:0:0:0:ffff:9783:14ce
151.131.20.207 0:0:0:0:0:ffff:9783:14cf
151.131.20.208 0:0:0:0:0:ffff:9783:14d0
151.131.20.209 0:0:0:0:0:ffff:9783:14d1
151.131.20.210 0:0:0:0:0:ffff:9783:14d2
151.131.20.211 0:0:0:0:0:ffff:9783:14d3
151.131.20.212 0:0:0:0:0:ffff:9783:14d4
151.131.20.213 0:0:0:0:0:ffff:9783:14d5
151.131.20.214 0:0:0:0:0:ffff:9783:14d6
151.131.20.215 0:0:0:0:0:ffff:9783:14d7
151.131.20.216 0:0:0:0:0:ffff:9783:14d8
151.131.20.217 0:0:0:0:0:ffff:9783:14d9
151.131.20.218 0:0:0:0:0:ffff:9783:14da
151.131.20.219 0:0:0:0:0:ffff:9783:14db
151.131.20.220 0:0:0:0:0:ffff:9783:14dc
151.131.20.221 0:0:0:0:0:ffff:9783:14dd
151.131.20.222 0:0:0:0:0:ffff:9783:14de
151.131.20.223 0:0:0:0:0:ffff:9783:14df
151.131.20.224 0:0:0:0:0:ffff:9783:14e0
151.131.20.225 0:0:0:0:0:ffff:9783:14e1
151.131.20.226 0:0:0:0:0:ffff:9783:14e2
151.131.20.227 0:0:0:0:0:ffff:9783:14e3
151.131.20.228 0:0:0:0:0:ffff:9783:14e4
151.131.20.229 0:0:0:0:0:ffff:9783:14e5
151.131.20.230 0:0:0:0:0:ffff:9783:14e6
151.131.20.231 0:0:0:0:0:ffff:9783:14e7
151.131.20.232 0:0:0:0:0:ffff:9783:14e8
151.131.20.233 0:0:0:0:0:ffff:9783:14e9
151.131.20.234 0:0:0:0:0:ffff:9783:14ea
151.131.20.235 0:0:0:0:0:ffff:9783:14eb
151.131.20.236 0:0:0:0:0:ffff:9783:14ec
151.131.20.237 0:0:0:0:0:ffff:9783:14ed
151.131.20.238 0:0:0:0:0:ffff:9783:14ee
151.131.20.239 0:0:0:0:0:ffff:9783:14ef
151.131.20.240 0:0:0:0:0:ffff:9783:14f0
151.131.20.241 0:0:0:0:0:ffff:9783:14f1
151.131.20.242 0:0:0:0:0:ffff:9783:14f2
151.131.20.243 0:0:0:0:0:ffff:9783:14f3
151.131.20.244 0:0:0:0:0:ffff:9783:14f4
151.131.20.245 0:0:0:0:0:ffff:9783:14f5
151.131.20.246 0:0:0:0:0:ffff:9783:14f6
151.131.20.247 0:0:0:0:0:ffff:9783:14f7
151.131.20.248 0:0:0:0:0:ffff:9783:14f8
151.131.20.249 0:0:0:0:0:ffff:9783:14f9
151.131.20.250 0:0:0:0:0:ffff:9783:14fa
151.131.20.251 0:0:0:0:0:ffff:9783:14fb
151.131.20.252 0:0:0:0:0:ffff:9783:14fc
151.131.20.253 0:0:0:0:0:ffff:9783:14fd
151.131.20.254 0:0:0:0:0:ffff:9783:14fe
151.131.20.255 0:0:0:0:0:ffff:9783:14ff


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.