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
203.160.21.1 0:0:0:0:0:ffff:cba0:1501
203.160.21.2 0:0:0:0:0:ffff:cba0:1502
203.160.21.3 0:0:0:0:0:ffff:cba0:1503
203.160.21.4 0:0:0:0:0:ffff:cba0:1504
203.160.21.5 0:0:0:0:0:ffff:cba0:1505
203.160.21.6 0:0:0:0:0:ffff:cba0:1506
203.160.21.7 0:0:0:0:0:ffff:cba0:1507
203.160.21.8 0:0:0:0:0:ffff:cba0:1508
203.160.21.9 0:0:0:0:0:ffff:cba0:1509
203.160.21.10 0:0:0:0:0:ffff:cba0:150a
203.160.21.11 0:0:0:0:0:ffff:cba0:150b
203.160.21.12 0:0:0:0:0:ffff:cba0:150c
203.160.21.13 0:0:0:0:0:ffff:cba0:150d
203.160.21.14 0:0:0:0:0:ffff:cba0:150e
203.160.21.15 0:0:0:0:0:ffff:cba0:150f
203.160.21.16 0:0:0:0:0:ffff:cba0:1510
203.160.21.17 0:0:0:0:0:ffff:cba0:1511
203.160.21.18 0:0:0:0:0:ffff:cba0:1512
203.160.21.19 0:0:0:0:0:ffff:cba0:1513
203.160.21.20 0:0:0:0:0:ffff:cba0:1514
203.160.21.21 0:0:0:0:0:ffff:cba0:1515
203.160.21.22 0:0:0:0:0:ffff:cba0:1516
203.160.21.23 0:0:0:0:0:ffff:cba0:1517
203.160.21.24 0:0:0:0:0:ffff:cba0:1518
203.160.21.25 0:0:0:0:0:ffff:cba0:1519
203.160.21.26 0:0:0:0:0:ffff:cba0:151a
203.160.21.27 0:0:0:0:0:ffff:cba0:151b
203.160.21.28 0:0:0:0:0:ffff:cba0:151c
203.160.21.29 0:0:0:0:0:ffff:cba0:151d
203.160.21.30 0:0:0:0:0:ffff:cba0:151e
203.160.21.31 0:0:0:0:0:ffff:cba0:151f
203.160.21.32 0:0:0:0:0:ffff:cba0:1520
203.160.21.33 0:0:0:0:0:ffff:cba0:1521
203.160.21.34 0:0:0:0:0:ffff:cba0:1522
203.160.21.35 0:0:0:0:0:ffff:cba0:1523
203.160.21.36 0:0:0:0:0:ffff:cba0:1524
203.160.21.37 0:0:0:0:0:ffff:cba0:1525
203.160.21.38 0:0:0:0:0:ffff:cba0:1526
203.160.21.39 0:0:0:0:0:ffff:cba0:1527
203.160.21.40 0:0:0:0:0:ffff:cba0:1528
203.160.21.41 0:0:0:0:0:ffff:cba0:1529
203.160.21.42 0:0:0:0:0:ffff:cba0:152a
203.160.21.43 0:0:0:0:0:ffff:cba0:152b
203.160.21.44 0:0:0:0:0:ffff:cba0:152c
203.160.21.45 0:0:0:0:0:ffff:cba0:152d
203.160.21.46 0:0:0:0:0:ffff:cba0:152e
203.160.21.47 0:0:0:0:0:ffff:cba0:152f
203.160.21.48 0:0:0:0:0:ffff:cba0:1530
203.160.21.49 0:0:0:0:0:ffff:cba0:1531
203.160.21.50 0:0:0:0:0:ffff:cba0:1532
203.160.21.51 0:0:0:0:0:ffff:cba0:1533
203.160.21.52 0:0:0:0:0:ffff:cba0:1534
203.160.21.53 0:0:0:0:0:ffff:cba0:1535
203.160.21.54 0:0:0:0:0:ffff:cba0:1536
203.160.21.55 0:0:0:0:0:ffff:cba0:1537
203.160.21.56 0:0:0:0:0:ffff:cba0:1538
203.160.21.57 0:0:0:0:0:ffff:cba0:1539
203.160.21.58 0:0:0:0:0:ffff:cba0:153a
203.160.21.59 0:0:0:0:0:ffff:cba0:153b
203.160.21.60 0:0:0:0:0:ffff:cba0:153c


203.160.21.61 0:0:0:0:0:ffff:cba0:153d
203.160.21.62 0:0:0:0:0:ffff:cba0:153e
203.160.21.63 0:0:0:0:0:ffff:cba0:153f
203.160.21.64 0:0:0:0:0:ffff:cba0:1540
203.160.21.65 0:0:0:0:0:ffff:cba0:1541
203.160.21.66 0:0:0:0:0:ffff:cba0:1542
203.160.21.67 0:0:0:0:0:ffff:cba0:1543
203.160.21.68 0:0:0:0:0:ffff:cba0:1544
203.160.21.69 0:0:0:0:0:ffff:cba0:1545
203.160.21.70 0:0:0:0:0:ffff:cba0:1546
203.160.21.71 0:0:0:0:0:ffff:cba0:1547
203.160.21.72 0:0:0:0:0:ffff:cba0:1548
203.160.21.73 0:0:0:0:0:ffff:cba0:1549
203.160.21.74 0:0:0:0:0:ffff:cba0:154a
203.160.21.75 0:0:0:0:0:ffff:cba0:154b
203.160.21.76 0:0:0:0:0:ffff:cba0:154c
203.160.21.77 0:0:0:0:0:ffff:cba0:154d
203.160.21.78 0:0:0:0:0:ffff:cba0:154e
203.160.21.79 0:0:0:0:0:ffff:cba0:154f
203.160.21.80 0:0:0:0:0:ffff:cba0:1550
203.160.21.81 0:0:0:0:0:ffff:cba0:1551
203.160.21.82 0:0:0:0:0:ffff:cba0:1552
203.160.21.83 0:0:0:0:0:ffff:cba0:1553
203.160.21.84 0:0:0:0:0:ffff:cba0:1554
203.160.21.85 0:0:0:0:0:ffff:cba0:1555
203.160.21.86 0:0:0:0:0:ffff:cba0:1556
203.160.21.87 0:0:0:0:0:ffff:cba0:1557
203.160.21.88 0:0:0:0:0:ffff:cba0:1558
203.160.21.89 0:0:0:0:0:ffff:cba0:1559
203.160.21.90 0:0:0:0:0:ffff:cba0:155a
203.160.21.91 0:0:0:0:0:ffff:cba0:155b
203.160.21.92 0:0:0:0:0:ffff:cba0:155c
203.160.21.93 0:0:0:0:0:ffff:cba0:155d
203.160.21.94 0:0:0:0:0:ffff:cba0:155e
203.160.21.95 0:0:0:0:0:ffff:cba0:155f
203.160.21.96 0:0:0:0:0:ffff:cba0:1560
203.160.21.97 0:0:0:0:0:ffff:cba0:1561
203.160.21.98 0:0:0:0:0:ffff:cba0:1562
203.160.21.99 0:0:0:0:0:ffff:cba0:1563
203.160.21.100 0:0:0:0:0:ffff:cba0:1564
203.160.21.101 0:0:0:0:0:ffff:cba0:1565
203.160.21.102 0:0:0:0:0:ffff:cba0:1566
203.160.21.103 0:0:0:0:0:ffff:cba0:1567
203.160.21.104 0:0:0:0:0:ffff:cba0:1568
203.160.21.105 0:0:0:0:0:ffff:cba0:1569
203.160.21.106 0:0:0:0:0:ffff:cba0:156a
203.160.21.107 0:0:0:0:0:ffff:cba0:156b
203.160.21.108 0:0:0:0:0:ffff:cba0:156c
203.160.21.109 0:0:0:0:0:ffff:cba0:156d
203.160.21.110 0:0:0:0:0:ffff:cba0:156e
203.160.21.111 0:0:0:0:0:ffff:cba0:156f
203.160.21.112 0:0:0:0:0:ffff:cba0:1570
203.160.21.113 0:0:0:0:0:ffff:cba0:1571
203.160.21.114 0:0:0:0:0:ffff:cba0:1572
203.160.21.115 0:0:0:0:0:ffff:cba0:1573
203.160.21.116 0:0:0:0:0:ffff:cba0:1574
203.160.21.117 0:0:0:0:0:ffff:cba0:1575
203.160.21.118 0:0:0:0:0:ffff:cba0:1576
203.160.21.119 0:0:0:0:0:ffff:cba0:1577
203.160.21.120 0:0:0:0:0:ffff:cba0:1578


203.160.21.121 0:0:0:0:0:ffff:cba0:1579
203.160.21.122 0:0:0:0:0:ffff:cba0:157a
203.160.21.123 0:0:0:0:0:ffff:cba0:157b
203.160.21.124 0:0:0:0:0:ffff:cba0:157c
203.160.21.125 0:0:0:0:0:ffff:cba0:157d
203.160.21.126 0:0:0:0:0:ffff:cba0:157e
203.160.21.127 0:0:0:0:0:ffff:cba0:157f
203.160.21.128 0:0:0:0:0:ffff:cba0:1580
203.160.21.129 0:0:0:0:0:ffff:cba0:1581
203.160.21.130 0:0:0:0:0:ffff:cba0:1582
203.160.21.131 0:0:0:0:0:ffff:cba0:1583
203.160.21.132 0:0:0:0:0:ffff:cba0:1584
203.160.21.133 0:0:0:0:0:ffff:cba0:1585
203.160.21.134 0:0:0:0:0:ffff:cba0:1586
203.160.21.135 0:0:0:0:0:ffff:cba0:1587
203.160.21.136 0:0:0:0:0:ffff:cba0:1588
203.160.21.137 0:0:0:0:0:ffff:cba0:1589
203.160.21.138 0:0:0:0:0:ffff:cba0:158a
203.160.21.139 0:0:0:0:0:ffff:cba0:158b
203.160.21.140 0:0:0:0:0:ffff:cba0:158c
203.160.21.141 0:0:0:0:0:ffff:cba0:158d
203.160.21.142 0:0:0:0:0:ffff:cba0:158e
203.160.21.143 0:0:0:0:0:ffff:cba0:158f
203.160.21.144 0:0:0:0:0:ffff:cba0:1590
203.160.21.145 0:0:0:0:0:ffff:cba0:1591
203.160.21.146 0:0:0:0:0:ffff:cba0:1592
203.160.21.147 0:0:0:0:0:ffff:cba0:1593
203.160.21.148 0:0:0:0:0:ffff:cba0:1594
203.160.21.149 0:0:0:0:0:ffff:cba0:1595
203.160.21.150 0:0:0:0:0:ffff:cba0:1596
203.160.21.151 0:0:0:0:0:ffff:cba0:1597
203.160.21.152 0:0:0:0:0:ffff:cba0:1598
203.160.21.153 0:0:0:0:0:ffff:cba0:1599
203.160.21.154 0:0:0:0:0:ffff:cba0:159a
203.160.21.155 0:0:0:0:0:ffff:cba0:159b
203.160.21.156 0:0:0:0:0:ffff:cba0:159c
203.160.21.157 0:0:0:0:0:ffff:cba0:159d
203.160.21.158 0:0:0:0:0:ffff:cba0:159e
203.160.21.159 0:0:0:0:0:ffff:cba0:159f
203.160.21.160 0:0:0:0:0:ffff:cba0:15a0
203.160.21.161 0:0:0:0:0:ffff:cba0:15a1
203.160.21.162 0:0:0:0:0:ffff:cba0:15a2
203.160.21.163 0:0:0:0:0:ffff:cba0:15a3
203.160.21.164 0:0:0:0:0:ffff:cba0:15a4
203.160.21.165 0:0:0:0:0:ffff:cba0:15a5
203.160.21.166 0:0:0:0:0:ffff:cba0:15a6
203.160.21.167 0:0:0:0:0:ffff:cba0:15a7
203.160.21.168 0:0:0:0:0:ffff:cba0:15a8
203.160.21.169 0:0:0:0:0:ffff:cba0:15a9
203.160.21.170 0:0:0:0:0:ffff:cba0:15aa
203.160.21.171 0:0:0:0:0:ffff:cba0:15ab
203.160.21.172 0:0:0:0:0:ffff:cba0:15ac
203.160.21.173 0:0:0:0:0:ffff:cba0:15ad
203.160.21.174 0:0:0:0:0:ffff:cba0:15ae
203.160.21.175 0:0:0:0:0:ffff:cba0:15af
203.160.21.176 0:0:0:0:0:ffff:cba0:15b0
203.160.21.177 0:0:0:0:0:ffff:cba0:15b1
203.160.21.178 0:0:0:0:0:ffff:cba0:15b2
203.160.21.179 0:0:0:0:0:ffff:cba0:15b3
203.160.21.180 0:0:0:0:0:ffff:cba0:15b4


203.160.21.181 0:0:0:0:0:ffff:cba0:15b5
203.160.21.182 0:0:0:0:0:ffff:cba0:15b6
203.160.21.183 0:0:0:0:0:ffff:cba0:15b7
203.160.21.184 0:0:0:0:0:ffff:cba0:15b8
203.160.21.185 0:0:0:0:0:ffff:cba0:15b9
203.160.21.186 0:0:0:0:0:ffff:cba0:15ba
203.160.21.187 0:0:0:0:0:ffff:cba0:15bb
203.160.21.188 0:0:0:0:0:ffff:cba0:15bc
203.160.21.189 0:0:0:0:0:ffff:cba0:15bd
203.160.21.190 0:0:0:0:0:ffff:cba0:15be
203.160.21.191 0:0:0:0:0:ffff:cba0:15bf
203.160.21.192 0:0:0:0:0:ffff:cba0:15c0
203.160.21.193 0:0:0:0:0:ffff:cba0:15c1
203.160.21.194 0:0:0:0:0:ffff:cba0:15c2
203.160.21.195 0:0:0:0:0:ffff:cba0:15c3
203.160.21.196 0:0:0:0:0:ffff:cba0:15c4
203.160.21.197 0:0:0:0:0:ffff:cba0:15c5
203.160.21.198 0:0:0:0:0:ffff:cba0:15c6
203.160.21.199 0:0:0:0:0:ffff:cba0:15c7
203.160.21.200 0:0:0:0:0:ffff:cba0:15c8
203.160.21.201 0:0:0:0:0:ffff:cba0:15c9
203.160.21.202 0:0:0:0:0:ffff:cba0:15ca
203.160.21.203 0:0:0:0:0:ffff:cba0:15cb
203.160.21.204 0:0:0:0:0:ffff:cba0:15cc
203.160.21.205 0:0:0:0:0:ffff:cba0:15cd
203.160.21.206 0:0:0:0:0:ffff:cba0:15ce
203.160.21.207 0:0:0:0:0:ffff:cba0:15cf
203.160.21.208 0:0:0:0:0:ffff:cba0:15d0
203.160.21.209 0:0:0:0:0:ffff:cba0:15d1
203.160.21.210 0:0:0:0:0:ffff:cba0:15d2
203.160.21.211 0:0:0:0:0:ffff:cba0:15d3
203.160.21.212 0:0:0:0:0:ffff:cba0:15d4
203.160.21.213 0:0:0:0:0:ffff:cba0:15d5
203.160.21.214 0:0:0:0:0:ffff:cba0:15d6
203.160.21.215 0:0:0:0:0:ffff:cba0:15d7
203.160.21.216 0:0:0:0:0:ffff:cba0:15d8
203.160.21.217 0:0:0:0:0:ffff:cba0:15d9
203.160.21.218 0:0:0:0:0:ffff:cba0:15da
203.160.21.219 0:0:0:0:0:ffff:cba0:15db
203.160.21.220 0:0:0:0:0:ffff:cba0:15dc
203.160.21.221 0:0:0:0:0:ffff:cba0:15dd
203.160.21.222 0:0:0:0:0:ffff:cba0:15de
203.160.21.223 0:0:0:0:0:ffff:cba0:15df
203.160.21.224 0:0:0:0:0:ffff:cba0:15e0
203.160.21.225 0:0:0:0:0:ffff:cba0:15e1
203.160.21.226 0:0:0:0:0:ffff:cba0:15e2
203.160.21.227 0:0:0:0:0:ffff:cba0:15e3
203.160.21.228 0:0:0:0:0:ffff:cba0:15e4
203.160.21.229 0:0:0:0:0:ffff:cba0:15e5
203.160.21.230 0:0:0:0:0:ffff:cba0:15e6
203.160.21.231 0:0:0:0:0:ffff:cba0:15e7
203.160.21.232 0:0:0:0:0:ffff:cba0:15e8
203.160.21.233 0:0:0:0:0:ffff:cba0:15e9
203.160.21.234 0:0:0:0:0:ffff:cba0:15ea
203.160.21.235 0:0:0:0:0:ffff:cba0:15eb
203.160.21.236 0:0:0:0:0:ffff:cba0:15ec
203.160.21.237 0:0:0:0:0:ffff:cba0:15ed
203.160.21.238 0:0:0:0:0:ffff:cba0:15ee
203.160.21.239 0:0:0:0:0:ffff:cba0:15ef
203.160.21.240 0:0:0:0:0:ffff:cba0:15f0
203.160.21.241 0:0:0:0:0:ffff:cba0:15f1
203.160.21.242 0:0:0:0:0:ffff:cba0:15f2
203.160.21.243 0:0:0:0:0:ffff:cba0:15f3
203.160.21.244 0:0:0:0:0:ffff:cba0:15f4
203.160.21.245 0:0:0:0:0:ffff:cba0:15f5
203.160.21.246 0:0:0:0:0:ffff:cba0:15f6
203.160.21.247 0:0:0:0:0:ffff:cba0:15f7
203.160.21.248 0:0:0:0:0:ffff:cba0:15f8
203.160.21.249 0:0:0:0:0:ffff:cba0:15f9
203.160.21.250 0:0:0:0:0:ffff:cba0:15fa
203.160.21.251 0:0:0:0:0:ffff:cba0:15fb
203.160.21.252 0:0:0:0:0:ffff:cba0:15fc
203.160.21.253 0:0:0:0:0:ffff:cba0:15fd
203.160.21.254 0:0:0:0:0:ffff:cba0:15fe
203.160.21.255 0:0:0:0:0:ffff:cba0:15ff


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.