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
199.145.20.1 0:0:0:0:0:ffff:c791:1401
199.145.20.2 0:0:0:0:0:ffff:c791:1402
199.145.20.3 0:0:0:0:0:ffff:c791:1403
199.145.20.4 0:0:0:0:0:ffff:c791:1404
199.145.20.5 0:0:0:0:0:ffff:c791:1405
199.145.20.6 0:0:0:0:0:ffff:c791:1406
199.145.20.7 0:0:0:0:0:ffff:c791:1407
199.145.20.8 0:0:0:0:0:ffff:c791:1408
199.145.20.9 0:0:0:0:0:ffff:c791:1409
199.145.20.10 0:0:0:0:0:ffff:c791:140a
199.145.20.11 0:0:0:0:0:ffff:c791:140b
199.145.20.12 0:0:0:0:0:ffff:c791:140c
199.145.20.13 0:0:0:0:0:ffff:c791:140d
199.145.20.14 0:0:0:0:0:ffff:c791:140e
199.145.20.15 0:0:0:0:0:ffff:c791:140f
199.145.20.16 0:0:0:0:0:ffff:c791:1410
199.145.20.17 0:0:0:0:0:ffff:c791:1411
199.145.20.18 0:0:0:0:0:ffff:c791:1412
199.145.20.19 0:0:0:0:0:ffff:c791:1413
199.145.20.20 0:0:0:0:0:ffff:c791:1414
199.145.20.21 0:0:0:0:0:ffff:c791:1415
199.145.20.22 0:0:0:0:0:ffff:c791:1416
199.145.20.23 0:0:0:0:0:ffff:c791:1417
199.145.20.24 0:0:0:0:0:ffff:c791:1418
199.145.20.25 0:0:0:0:0:ffff:c791:1419
199.145.20.26 0:0:0:0:0:ffff:c791:141a
199.145.20.27 0:0:0:0:0:ffff:c791:141b
199.145.20.28 0:0:0:0:0:ffff:c791:141c
199.145.20.29 0:0:0:0:0:ffff:c791:141d
199.145.20.30 0:0:0:0:0:ffff:c791:141e
199.145.20.31 0:0:0:0:0:ffff:c791:141f
199.145.20.32 0:0:0:0:0:ffff:c791:1420
199.145.20.33 0:0:0:0:0:ffff:c791:1421
199.145.20.34 0:0:0:0:0:ffff:c791:1422
199.145.20.35 0:0:0:0:0:ffff:c791:1423
199.145.20.36 0:0:0:0:0:ffff:c791:1424
199.145.20.37 0:0:0:0:0:ffff:c791:1425
199.145.20.38 0:0:0:0:0:ffff:c791:1426
199.145.20.39 0:0:0:0:0:ffff:c791:1427
199.145.20.40 0:0:0:0:0:ffff:c791:1428
199.145.20.41 0:0:0:0:0:ffff:c791:1429
199.145.20.42 0:0:0:0:0:ffff:c791:142a
199.145.20.43 0:0:0:0:0:ffff:c791:142b
199.145.20.44 0:0:0:0:0:ffff:c791:142c
199.145.20.45 0:0:0:0:0:ffff:c791:142d
199.145.20.46 0:0:0:0:0:ffff:c791:142e
199.145.20.47 0:0:0:0:0:ffff:c791:142f
199.145.20.48 0:0:0:0:0:ffff:c791:1430
199.145.20.49 0:0:0:0:0:ffff:c791:1431
199.145.20.50 0:0:0:0:0:ffff:c791:1432
199.145.20.51 0:0:0:0:0:ffff:c791:1433
199.145.20.52 0:0:0:0:0:ffff:c791:1434
199.145.20.53 0:0:0:0:0:ffff:c791:1435
199.145.20.54 0:0:0:0:0:ffff:c791:1436
199.145.20.55 0:0:0:0:0:ffff:c791:1437
199.145.20.56 0:0:0:0:0:ffff:c791:1438
199.145.20.57 0:0:0:0:0:ffff:c791:1439
199.145.20.58 0:0:0:0:0:ffff:c791:143a
199.145.20.59 0:0:0:0:0:ffff:c791:143b
199.145.20.60 0:0:0:0:0:ffff:c791:143c


199.145.20.61 0:0:0:0:0:ffff:c791:143d
199.145.20.62 0:0:0:0:0:ffff:c791:143e
199.145.20.63 0:0:0:0:0:ffff:c791:143f
199.145.20.64 0:0:0:0:0:ffff:c791:1440
199.145.20.65 0:0:0:0:0:ffff:c791:1441
199.145.20.66 0:0:0:0:0:ffff:c791:1442
199.145.20.67 0:0:0:0:0:ffff:c791:1443
199.145.20.68 0:0:0:0:0:ffff:c791:1444
199.145.20.69 0:0:0:0:0:ffff:c791:1445
199.145.20.70 0:0:0:0:0:ffff:c791:1446
199.145.20.71 0:0:0:0:0:ffff:c791:1447
199.145.20.72 0:0:0:0:0:ffff:c791:1448
199.145.20.73 0:0:0:0:0:ffff:c791:1449
199.145.20.74 0:0:0:0:0:ffff:c791:144a
199.145.20.75 0:0:0:0:0:ffff:c791:144b
199.145.20.76 0:0:0:0:0:ffff:c791:144c
199.145.20.77 0:0:0:0:0:ffff:c791:144d
199.145.20.78 0:0:0:0:0:ffff:c791:144e
199.145.20.79 0:0:0:0:0:ffff:c791:144f
199.145.20.80 0:0:0:0:0:ffff:c791:1450
199.145.20.81 0:0:0:0:0:ffff:c791:1451
199.145.20.82 0:0:0:0:0:ffff:c791:1452
199.145.20.83 0:0:0:0:0:ffff:c791:1453
199.145.20.84 0:0:0:0:0:ffff:c791:1454
199.145.20.85 0:0:0:0:0:ffff:c791:1455
199.145.20.86 0:0:0:0:0:ffff:c791:1456
199.145.20.87 0:0:0:0:0:ffff:c791:1457
199.145.20.88 0:0:0:0:0:ffff:c791:1458
199.145.20.89 0:0:0:0:0:ffff:c791:1459
199.145.20.90 0:0:0:0:0:ffff:c791:145a
199.145.20.91 0:0:0:0:0:ffff:c791:145b
199.145.20.92 0:0:0:0:0:ffff:c791:145c
199.145.20.93 0:0:0:0:0:ffff:c791:145d
199.145.20.94 0:0:0:0:0:ffff:c791:145e
199.145.20.95 0:0:0:0:0:ffff:c791:145f
199.145.20.96 0:0:0:0:0:ffff:c791:1460
199.145.20.97 0:0:0:0:0:ffff:c791:1461
199.145.20.98 0:0:0:0:0:ffff:c791:1462
199.145.20.99 0:0:0:0:0:ffff:c791:1463
199.145.20.100 0:0:0:0:0:ffff:c791:1464
199.145.20.101 0:0:0:0:0:ffff:c791:1465
199.145.20.102 0:0:0:0:0:ffff:c791:1466
199.145.20.103 0:0:0:0:0:ffff:c791:1467
199.145.20.104 0:0:0:0:0:ffff:c791:1468
199.145.20.105 0:0:0:0:0:ffff:c791:1469
199.145.20.106 0:0:0:0:0:ffff:c791:146a
199.145.20.107 0:0:0:0:0:ffff:c791:146b
199.145.20.108 0:0:0:0:0:ffff:c791:146c
199.145.20.109 0:0:0:0:0:ffff:c791:146d
199.145.20.110 0:0:0:0:0:ffff:c791:146e
199.145.20.111 0:0:0:0:0:ffff:c791:146f
199.145.20.112 0:0:0:0:0:ffff:c791:1470
199.145.20.113 0:0:0:0:0:ffff:c791:1471
199.145.20.114 0:0:0:0:0:ffff:c791:1472
199.145.20.115 0:0:0:0:0:ffff:c791:1473
199.145.20.116 0:0:0:0:0:ffff:c791:1474
199.145.20.117 0:0:0:0:0:ffff:c791:1475
199.145.20.118 0:0:0:0:0:ffff:c791:1476
199.145.20.119 0:0:0:0:0:ffff:c791:1477
199.145.20.120 0:0:0:0:0:ffff:c791:1478


199.145.20.121 0:0:0:0:0:ffff:c791:1479
199.145.20.122 0:0:0:0:0:ffff:c791:147a
199.145.20.123 0:0:0:0:0:ffff:c791:147b
199.145.20.124 0:0:0:0:0:ffff:c791:147c
199.145.20.125 0:0:0:0:0:ffff:c791:147d
199.145.20.126 0:0:0:0:0:ffff:c791:147e
199.145.20.127 0:0:0:0:0:ffff:c791:147f
199.145.20.128 0:0:0:0:0:ffff:c791:1480
199.145.20.129 0:0:0:0:0:ffff:c791:1481
199.145.20.130 0:0:0:0:0:ffff:c791:1482
199.145.20.131 0:0:0:0:0:ffff:c791:1483
199.145.20.132 0:0:0:0:0:ffff:c791:1484
199.145.20.133 0:0:0:0:0:ffff:c791:1485
199.145.20.134 0:0:0:0:0:ffff:c791:1486
199.145.20.135 0:0:0:0:0:ffff:c791:1487
199.145.20.136 0:0:0:0:0:ffff:c791:1488
199.145.20.137 0:0:0:0:0:ffff:c791:1489
199.145.20.138 0:0:0:0:0:ffff:c791:148a
199.145.20.139 0:0:0:0:0:ffff:c791:148b
199.145.20.140 0:0:0:0:0:ffff:c791:148c
199.145.20.141 0:0:0:0:0:ffff:c791:148d
199.145.20.142 0:0:0:0:0:ffff:c791:148e
199.145.20.143 0:0:0:0:0:ffff:c791:148f
199.145.20.144 0:0:0:0:0:ffff:c791:1490
199.145.20.145 0:0:0:0:0:ffff:c791:1491
199.145.20.146 0:0:0:0:0:ffff:c791:1492
199.145.20.147 0:0:0:0:0:ffff:c791:1493
199.145.20.148 0:0:0:0:0:ffff:c791:1494
199.145.20.149 0:0:0:0:0:ffff:c791:1495
199.145.20.150 0:0:0:0:0:ffff:c791:1496
199.145.20.151 0:0:0:0:0:ffff:c791:1497
199.145.20.152 0:0:0:0:0:ffff:c791:1498
199.145.20.153 0:0:0:0:0:ffff:c791:1499
199.145.20.154 0:0:0:0:0:ffff:c791:149a
199.145.20.155 0:0:0:0:0:ffff:c791:149b
199.145.20.156 0:0:0:0:0:ffff:c791:149c
199.145.20.157 0:0:0:0:0:ffff:c791:149d
199.145.20.158 0:0:0:0:0:ffff:c791:149e
199.145.20.159 0:0:0:0:0:ffff:c791:149f
199.145.20.160 0:0:0:0:0:ffff:c791:14a0
199.145.20.161 0:0:0:0:0:ffff:c791:14a1
199.145.20.162 0:0:0:0:0:ffff:c791:14a2
199.145.20.163 0:0:0:0:0:ffff:c791:14a3
199.145.20.164 0:0:0:0:0:ffff:c791:14a4
199.145.20.165 0:0:0:0:0:ffff:c791:14a5
199.145.20.166 0:0:0:0:0:ffff:c791:14a6
199.145.20.167 0:0:0:0:0:ffff:c791:14a7
199.145.20.168 0:0:0:0:0:ffff:c791:14a8
199.145.20.169 0:0:0:0:0:ffff:c791:14a9
199.145.20.170 0:0:0:0:0:ffff:c791:14aa
199.145.20.171 0:0:0:0:0:ffff:c791:14ab
199.145.20.172 0:0:0:0:0:ffff:c791:14ac
199.145.20.173 0:0:0:0:0:ffff:c791:14ad
199.145.20.174 0:0:0:0:0:ffff:c791:14ae
199.145.20.175 0:0:0:0:0:ffff:c791:14af
199.145.20.176 0:0:0:0:0:ffff:c791:14b0
199.145.20.177 0:0:0:0:0:ffff:c791:14b1
199.145.20.178 0:0:0:0:0:ffff:c791:14b2
199.145.20.179 0:0:0:0:0:ffff:c791:14b3
199.145.20.180 0:0:0:0:0:ffff:c791:14b4


199.145.20.181 0:0:0:0:0:ffff:c791:14b5
199.145.20.182 0:0:0:0:0:ffff:c791:14b6
199.145.20.183 0:0:0:0:0:ffff:c791:14b7
199.145.20.184 0:0:0:0:0:ffff:c791:14b8
199.145.20.185 0:0:0:0:0:ffff:c791:14b9
199.145.20.186 0:0:0:0:0:ffff:c791:14ba
199.145.20.187 0:0:0:0:0:ffff:c791:14bb
199.145.20.188 0:0:0:0:0:ffff:c791:14bc
199.145.20.189 0:0:0:0:0:ffff:c791:14bd
199.145.20.190 0:0:0:0:0:ffff:c791:14be
199.145.20.191 0:0:0:0:0:ffff:c791:14bf
199.145.20.192 0:0:0:0:0:ffff:c791:14c0
199.145.20.193 0:0:0:0:0:ffff:c791:14c1
199.145.20.194 0:0:0:0:0:ffff:c791:14c2
199.145.20.195 0:0:0:0:0:ffff:c791:14c3
199.145.20.196 0:0:0:0:0:ffff:c791:14c4
199.145.20.197 0:0:0:0:0:ffff:c791:14c5
199.145.20.198 0:0:0:0:0:ffff:c791:14c6
199.145.20.199 0:0:0:0:0:ffff:c791:14c7
199.145.20.200 0:0:0:0:0:ffff:c791:14c8
199.145.20.201 0:0:0:0:0:ffff:c791:14c9
199.145.20.202 0:0:0:0:0:ffff:c791:14ca
199.145.20.203 0:0:0:0:0:ffff:c791:14cb
199.145.20.204 0:0:0:0:0:ffff:c791:14cc
199.145.20.205 0:0:0:0:0:ffff:c791:14cd
199.145.20.206 0:0:0:0:0:ffff:c791:14ce
199.145.20.207 0:0:0:0:0:ffff:c791:14cf
199.145.20.208 0:0:0:0:0:ffff:c791:14d0
199.145.20.209 0:0:0:0:0:ffff:c791:14d1
199.145.20.210 0:0:0:0:0:ffff:c791:14d2
199.145.20.211 0:0:0:0:0:ffff:c791:14d3
199.145.20.212 0:0:0:0:0:ffff:c791:14d4
199.145.20.213 0:0:0:0:0:ffff:c791:14d5
199.145.20.214 0:0:0:0:0:ffff:c791:14d6
199.145.20.215 0:0:0:0:0:ffff:c791:14d7
199.145.20.216 0:0:0:0:0:ffff:c791:14d8
199.145.20.217 0:0:0:0:0:ffff:c791:14d9
199.145.20.218 0:0:0:0:0:ffff:c791:14da
199.145.20.219 0:0:0:0:0:ffff:c791:14db
199.145.20.220 0:0:0:0:0:ffff:c791:14dc
199.145.20.221 0:0:0:0:0:ffff:c791:14dd
199.145.20.222 0:0:0:0:0:ffff:c791:14de
199.145.20.223 0:0:0:0:0:ffff:c791:14df
199.145.20.224 0:0:0:0:0:ffff:c791:14e0
199.145.20.225 0:0:0:0:0:ffff:c791:14e1
199.145.20.226 0:0:0:0:0:ffff:c791:14e2
199.145.20.227 0:0:0:0:0:ffff:c791:14e3
199.145.20.228 0:0:0:0:0:ffff:c791:14e4
199.145.20.229 0:0:0:0:0:ffff:c791:14e5
199.145.20.230 0:0:0:0:0:ffff:c791:14e6
199.145.20.231 0:0:0:0:0:ffff:c791:14e7
199.145.20.232 0:0:0:0:0:ffff:c791:14e8
199.145.20.233 0:0:0:0:0:ffff:c791:14e9
199.145.20.234 0:0:0:0:0:ffff:c791:14ea
199.145.20.235 0:0:0:0:0:ffff:c791:14eb
199.145.20.236 0:0:0:0:0:ffff:c791:14ec
199.145.20.237 0:0:0:0:0:ffff:c791:14ed
199.145.20.238 0:0:0:0:0:ffff:c791:14ee
199.145.20.239 0:0:0:0:0:ffff:c791:14ef
199.145.20.240 0:0:0:0:0:ffff:c791:14f0
199.145.20.241 0:0:0:0:0:ffff:c791:14f1
199.145.20.242 0:0:0:0:0:ffff:c791:14f2
199.145.20.243 0:0:0:0:0:ffff:c791:14f3
199.145.20.244 0:0:0:0:0:ffff:c791:14f4
199.145.20.245 0:0:0:0:0:ffff:c791:14f5
199.145.20.246 0:0:0:0:0:ffff:c791:14f6
199.145.20.247 0:0:0:0:0:ffff:c791:14f7
199.145.20.248 0:0:0:0:0:ffff:c791:14f8
199.145.20.249 0:0:0:0:0:ffff:c791:14f9
199.145.20.250 0:0:0:0:0:ffff:c791:14fa
199.145.20.251 0:0:0:0:0:ffff:c791:14fb
199.145.20.252 0:0:0:0:0:ffff:c791:14fc
199.145.20.253 0:0:0:0:0:ffff:c791:14fd
199.145.20.254 0:0:0:0:0:ffff:c791:14fe
199.145.20.255 0:0:0:0:0:ffff:c791:14ff


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.