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
42.152.21.1 0:0:0:0:0:ffff:2a98:1501
42.152.21.2 0:0:0:0:0:ffff:2a98:1502
42.152.21.3 0:0:0:0:0:ffff:2a98:1503
42.152.21.4 0:0:0:0:0:ffff:2a98:1504
42.152.21.5 0:0:0:0:0:ffff:2a98:1505
42.152.21.6 0:0:0:0:0:ffff:2a98:1506
42.152.21.7 0:0:0:0:0:ffff:2a98:1507
42.152.21.8 0:0:0:0:0:ffff:2a98:1508
42.152.21.9 0:0:0:0:0:ffff:2a98:1509
42.152.21.10 0:0:0:0:0:ffff:2a98:150a
42.152.21.11 0:0:0:0:0:ffff:2a98:150b
42.152.21.12 0:0:0:0:0:ffff:2a98:150c
42.152.21.13 0:0:0:0:0:ffff:2a98:150d
42.152.21.14 0:0:0:0:0:ffff:2a98:150e
42.152.21.15 0:0:0:0:0:ffff:2a98:150f
42.152.21.16 0:0:0:0:0:ffff:2a98:1510
42.152.21.17 0:0:0:0:0:ffff:2a98:1511
42.152.21.18 0:0:0:0:0:ffff:2a98:1512
42.152.21.19 0:0:0:0:0:ffff:2a98:1513
42.152.21.20 0:0:0:0:0:ffff:2a98:1514
42.152.21.21 0:0:0:0:0:ffff:2a98:1515
42.152.21.22 0:0:0:0:0:ffff:2a98:1516
42.152.21.23 0:0:0:0:0:ffff:2a98:1517
42.152.21.24 0:0:0:0:0:ffff:2a98:1518
42.152.21.25 0:0:0:0:0:ffff:2a98:1519
42.152.21.26 0:0:0:0:0:ffff:2a98:151a
42.152.21.27 0:0:0:0:0:ffff:2a98:151b
42.152.21.28 0:0:0:0:0:ffff:2a98:151c
42.152.21.29 0:0:0:0:0:ffff:2a98:151d
42.152.21.30 0:0:0:0:0:ffff:2a98:151e
42.152.21.31 0:0:0:0:0:ffff:2a98:151f
42.152.21.32 0:0:0:0:0:ffff:2a98:1520
42.152.21.33 0:0:0:0:0:ffff:2a98:1521
42.152.21.34 0:0:0:0:0:ffff:2a98:1522
42.152.21.35 0:0:0:0:0:ffff:2a98:1523
42.152.21.36 0:0:0:0:0:ffff:2a98:1524
42.152.21.37 0:0:0:0:0:ffff:2a98:1525
42.152.21.38 0:0:0:0:0:ffff:2a98:1526
42.152.21.39 0:0:0:0:0:ffff:2a98:1527
42.152.21.40 0:0:0:0:0:ffff:2a98:1528
42.152.21.41 0:0:0:0:0:ffff:2a98:1529
42.152.21.42 0:0:0:0:0:ffff:2a98:152a
42.152.21.43 0:0:0:0:0:ffff:2a98:152b
42.152.21.44 0:0:0:0:0:ffff:2a98:152c
42.152.21.45 0:0:0:0:0:ffff:2a98:152d
42.152.21.46 0:0:0:0:0:ffff:2a98:152e
42.152.21.47 0:0:0:0:0:ffff:2a98:152f
42.152.21.48 0:0:0:0:0:ffff:2a98:1530
42.152.21.49 0:0:0:0:0:ffff:2a98:1531
42.152.21.50 0:0:0:0:0:ffff:2a98:1532
42.152.21.51 0:0:0:0:0:ffff:2a98:1533
42.152.21.52 0:0:0:0:0:ffff:2a98:1534
42.152.21.53 0:0:0:0:0:ffff:2a98:1535
42.152.21.54 0:0:0:0:0:ffff:2a98:1536
42.152.21.55 0:0:0:0:0:ffff:2a98:1537
42.152.21.56 0:0:0:0:0:ffff:2a98:1538
42.152.21.57 0:0:0:0:0:ffff:2a98:1539
42.152.21.58 0:0:0:0:0:ffff:2a98:153a
42.152.21.59 0:0:0:0:0:ffff:2a98:153b
42.152.21.60 0:0:0:0:0:ffff:2a98:153c


42.152.21.61 0:0:0:0:0:ffff:2a98:153d
42.152.21.62 0:0:0:0:0:ffff:2a98:153e
42.152.21.63 0:0:0:0:0:ffff:2a98:153f
42.152.21.64 0:0:0:0:0:ffff:2a98:1540
42.152.21.65 0:0:0:0:0:ffff:2a98:1541
42.152.21.66 0:0:0:0:0:ffff:2a98:1542
42.152.21.67 0:0:0:0:0:ffff:2a98:1543
42.152.21.68 0:0:0:0:0:ffff:2a98:1544
42.152.21.69 0:0:0:0:0:ffff:2a98:1545
42.152.21.70 0:0:0:0:0:ffff:2a98:1546
42.152.21.71 0:0:0:0:0:ffff:2a98:1547
42.152.21.72 0:0:0:0:0:ffff:2a98:1548
42.152.21.73 0:0:0:0:0:ffff:2a98:1549
42.152.21.74 0:0:0:0:0:ffff:2a98:154a
42.152.21.75 0:0:0:0:0:ffff:2a98:154b
42.152.21.76 0:0:0:0:0:ffff:2a98:154c
42.152.21.77 0:0:0:0:0:ffff:2a98:154d
42.152.21.78 0:0:0:0:0:ffff:2a98:154e
42.152.21.79 0:0:0:0:0:ffff:2a98:154f
42.152.21.80 0:0:0:0:0:ffff:2a98:1550
42.152.21.81 0:0:0:0:0:ffff:2a98:1551
42.152.21.82 0:0:0:0:0:ffff:2a98:1552
42.152.21.83 0:0:0:0:0:ffff:2a98:1553
42.152.21.84 0:0:0:0:0:ffff:2a98:1554
42.152.21.85 0:0:0:0:0:ffff:2a98:1555
42.152.21.86 0:0:0:0:0:ffff:2a98:1556
42.152.21.87 0:0:0:0:0:ffff:2a98:1557
42.152.21.88 0:0:0:0:0:ffff:2a98:1558
42.152.21.89 0:0:0:0:0:ffff:2a98:1559
42.152.21.90 0:0:0:0:0:ffff:2a98:155a
42.152.21.91 0:0:0:0:0:ffff:2a98:155b
42.152.21.92 0:0:0:0:0:ffff:2a98:155c
42.152.21.93 0:0:0:0:0:ffff:2a98:155d
42.152.21.94 0:0:0:0:0:ffff:2a98:155e
42.152.21.95 0:0:0:0:0:ffff:2a98:155f
42.152.21.96 0:0:0:0:0:ffff:2a98:1560
42.152.21.97 0:0:0:0:0:ffff:2a98:1561
42.152.21.98 0:0:0:0:0:ffff:2a98:1562
42.152.21.99 0:0:0:0:0:ffff:2a98:1563
42.152.21.100 0:0:0:0:0:ffff:2a98:1564
42.152.21.101 0:0:0:0:0:ffff:2a98:1565
42.152.21.102 0:0:0:0:0:ffff:2a98:1566
42.152.21.103 0:0:0:0:0:ffff:2a98:1567
42.152.21.104 0:0:0:0:0:ffff:2a98:1568
42.152.21.105 0:0:0:0:0:ffff:2a98:1569
42.152.21.106 0:0:0:0:0:ffff:2a98:156a
42.152.21.107 0:0:0:0:0:ffff:2a98:156b
42.152.21.108 0:0:0:0:0:ffff:2a98:156c
42.152.21.109 0:0:0:0:0:ffff:2a98:156d
42.152.21.110 0:0:0:0:0:ffff:2a98:156e
42.152.21.111 0:0:0:0:0:ffff:2a98:156f
42.152.21.112 0:0:0:0:0:ffff:2a98:1570
42.152.21.113 0:0:0:0:0:ffff:2a98:1571
42.152.21.114 0:0:0:0:0:ffff:2a98:1572
42.152.21.115 0:0:0:0:0:ffff:2a98:1573
42.152.21.116 0:0:0:0:0:ffff:2a98:1574
42.152.21.117 0:0:0:0:0:ffff:2a98:1575
42.152.21.118 0:0:0:0:0:ffff:2a98:1576
42.152.21.119 0:0:0:0:0:ffff:2a98:1577
42.152.21.120 0:0:0:0:0:ffff:2a98:1578


42.152.21.121 0:0:0:0:0:ffff:2a98:1579
42.152.21.122 0:0:0:0:0:ffff:2a98:157a
42.152.21.123 0:0:0:0:0:ffff:2a98:157b
42.152.21.124 0:0:0:0:0:ffff:2a98:157c
42.152.21.125 0:0:0:0:0:ffff:2a98:157d
42.152.21.126 0:0:0:0:0:ffff:2a98:157e
42.152.21.127 0:0:0:0:0:ffff:2a98:157f
42.152.21.128 0:0:0:0:0:ffff:2a98:1580
42.152.21.129 0:0:0:0:0:ffff:2a98:1581
42.152.21.130 0:0:0:0:0:ffff:2a98:1582
42.152.21.131 0:0:0:0:0:ffff:2a98:1583
42.152.21.132 0:0:0:0:0:ffff:2a98:1584
42.152.21.133 0:0:0:0:0:ffff:2a98:1585
42.152.21.134 0:0:0:0:0:ffff:2a98:1586
42.152.21.135 0:0:0:0:0:ffff:2a98:1587
42.152.21.136 0:0:0:0:0:ffff:2a98:1588
42.152.21.137 0:0:0:0:0:ffff:2a98:1589
42.152.21.138 0:0:0:0:0:ffff:2a98:158a
42.152.21.139 0:0:0:0:0:ffff:2a98:158b
42.152.21.140 0:0:0:0:0:ffff:2a98:158c
42.152.21.141 0:0:0:0:0:ffff:2a98:158d
42.152.21.142 0:0:0:0:0:ffff:2a98:158e
42.152.21.143 0:0:0:0:0:ffff:2a98:158f
42.152.21.144 0:0:0:0:0:ffff:2a98:1590
42.152.21.145 0:0:0:0:0:ffff:2a98:1591
42.152.21.146 0:0:0:0:0:ffff:2a98:1592
42.152.21.147 0:0:0:0:0:ffff:2a98:1593
42.152.21.148 0:0:0:0:0:ffff:2a98:1594
42.152.21.149 0:0:0:0:0:ffff:2a98:1595
42.152.21.150 0:0:0:0:0:ffff:2a98:1596
42.152.21.151 0:0:0:0:0:ffff:2a98:1597
42.152.21.152 0:0:0:0:0:ffff:2a98:1598
42.152.21.153 0:0:0:0:0:ffff:2a98:1599
42.152.21.154 0:0:0:0:0:ffff:2a98:159a
42.152.21.155 0:0:0:0:0:ffff:2a98:159b
42.152.21.156 0:0:0:0:0:ffff:2a98:159c
42.152.21.157 0:0:0:0:0:ffff:2a98:159d
42.152.21.158 0:0:0:0:0:ffff:2a98:159e
42.152.21.159 0:0:0:0:0:ffff:2a98:159f
42.152.21.160 0:0:0:0:0:ffff:2a98:15a0
42.152.21.161 0:0:0:0:0:ffff:2a98:15a1
42.152.21.162 0:0:0:0:0:ffff:2a98:15a2
42.152.21.163 0:0:0:0:0:ffff:2a98:15a3
42.152.21.164 0:0:0:0:0:ffff:2a98:15a4
42.152.21.165 0:0:0:0:0:ffff:2a98:15a5
42.152.21.166 0:0:0:0:0:ffff:2a98:15a6
42.152.21.167 0:0:0:0:0:ffff:2a98:15a7
42.152.21.168 0:0:0:0:0:ffff:2a98:15a8
42.152.21.169 0:0:0:0:0:ffff:2a98:15a9
42.152.21.170 0:0:0:0:0:ffff:2a98:15aa
42.152.21.171 0:0:0:0:0:ffff:2a98:15ab
42.152.21.172 0:0:0:0:0:ffff:2a98:15ac
42.152.21.173 0:0:0:0:0:ffff:2a98:15ad
42.152.21.174 0:0:0:0:0:ffff:2a98:15ae
42.152.21.175 0:0:0:0:0:ffff:2a98:15af
42.152.21.176 0:0:0:0:0:ffff:2a98:15b0
42.152.21.177 0:0:0:0:0:ffff:2a98:15b1
42.152.21.178 0:0:0:0:0:ffff:2a98:15b2
42.152.21.179 0:0:0:0:0:ffff:2a98:15b3
42.152.21.180 0:0:0:0:0:ffff:2a98:15b4


42.152.21.181 0:0:0:0:0:ffff:2a98:15b5
42.152.21.182 0:0:0:0:0:ffff:2a98:15b6
42.152.21.183 0:0:0:0:0:ffff:2a98:15b7
42.152.21.184 0:0:0:0:0:ffff:2a98:15b8
42.152.21.185 0:0:0:0:0:ffff:2a98:15b9
42.152.21.186 0:0:0:0:0:ffff:2a98:15ba
42.152.21.187 0:0:0:0:0:ffff:2a98:15bb
42.152.21.188 0:0:0:0:0:ffff:2a98:15bc
42.152.21.189 0:0:0:0:0:ffff:2a98:15bd
42.152.21.190 0:0:0:0:0:ffff:2a98:15be
42.152.21.191 0:0:0:0:0:ffff:2a98:15bf
42.152.21.192 0:0:0:0:0:ffff:2a98:15c0
42.152.21.193 0:0:0:0:0:ffff:2a98:15c1
42.152.21.194 0:0:0:0:0:ffff:2a98:15c2
42.152.21.195 0:0:0:0:0:ffff:2a98:15c3
42.152.21.196 0:0:0:0:0:ffff:2a98:15c4
42.152.21.197 0:0:0:0:0:ffff:2a98:15c5
42.152.21.198 0:0:0:0:0:ffff:2a98:15c6
42.152.21.199 0:0:0:0:0:ffff:2a98:15c7
42.152.21.200 0:0:0:0:0:ffff:2a98:15c8
42.152.21.201 0:0:0:0:0:ffff:2a98:15c9
42.152.21.202 0:0:0:0:0:ffff:2a98:15ca
42.152.21.203 0:0:0:0:0:ffff:2a98:15cb
42.152.21.204 0:0:0:0:0:ffff:2a98:15cc
42.152.21.205 0:0:0:0:0:ffff:2a98:15cd
42.152.21.206 0:0:0:0:0:ffff:2a98:15ce
42.152.21.207 0:0:0:0:0:ffff:2a98:15cf
42.152.21.208 0:0:0:0:0:ffff:2a98:15d0
42.152.21.209 0:0:0:0:0:ffff:2a98:15d1
42.152.21.210 0:0:0:0:0:ffff:2a98:15d2
42.152.21.211 0:0:0:0:0:ffff:2a98:15d3
42.152.21.212 0:0:0:0:0:ffff:2a98:15d4
42.152.21.213 0:0:0:0:0:ffff:2a98:15d5
42.152.21.214 0:0:0:0:0:ffff:2a98:15d6
42.152.21.215 0:0:0:0:0:ffff:2a98:15d7
42.152.21.216 0:0:0:0:0:ffff:2a98:15d8
42.152.21.217 0:0:0:0:0:ffff:2a98:15d9
42.152.21.218 0:0:0:0:0:ffff:2a98:15da
42.152.21.219 0:0:0:0:0:ffff:2a98:15db
42.152.21.220 0:0:0:0:0:ffff:2a98:15dc
42.152.21.221 0:0:0:0:0:ffff:2a98:15dd
42.152.21.222 0:0:0:0:0:ffff:2a98:15de
42.152.21.223 0:0:0:0:0:ffff:2a98:15df
42.152.21.224 0:0:0:0:0:ffff:2a98:15e0
42.152.21.225 0:0:0:0:0:ffff:2a98:15e1
42.152.21.226 0:0:0:0:0:ffff:2a98:15e2
42.152.21.227 0:0:0:0:0:ffff:2a98:15e3
42.152.21.228 0:0:0:0:0:ffff:2a98:15e4
42.152.21.229 0:0:0:0:0:ffff:2a98:15e5
42.152.21.230 0:0:0:0:0:ffff:2a98:15e6
42.152.21.231 0:0:0:0:0:ffff:2a98:15e7
42.152.21.232 0:0:0:0:0:ffff:2a98:15e8
42.152.21.233 0:0:0:0:0:ffff:2a98:15e9
42.152.21.234 0:0:0:0:0:ffff:2a98:15ea
42.152.21.235 0:0:0:0:0:ffff:2a98:15eb
42.152.21.236 0:0:0:0:0:ffff:2a98:15ec
42.152.21.237 0:0:0:0:0:ffff:2a98:15ed
42.152.21.238 0:0:0:0:0:ffff:2a98:15ee
42.152.21.239 0:0:0:0:0:ffff:2a98:15ef
42.152.21.240 0:0:0:0:0:ffff:2a98:15f0
42.152.21.241 0:0:0:0:0:ffff:2a98:15f1
42.152.21.242 0:0:0:0:0:ffff:2a98:15f2
42.152.21.243 0:0:0:0:0:ffff:2a98:15f3
42.152.21.244 0:0:0:0:0:ffff:2a98:15f4
42.152.21.245 0:0:0:0:0:ffff:2a98:15f5
42.152.21.246 0:0:0:0:0:ffff:2a98:15f6
42.152.21.247 0:0:0:0:0:ffff:2a98:15f7
42.152.21.248 0:0:0:0:0:ffff:2a98:15f8
42.152.21.249 0:0:0:0:0:ffff:2a98:15f9
42.152.21.250 0:0:0:0:0:ffff:2a98:15fa
42.152.21.251 0:0:0:0:0:ffff:2a98:15fb
42.152.21.252 0:0:0:0:0:ffff:2a98:15fc
42.152.21.253 0:0:0:0:0:ffff:2a98:15fd
42.152.21.254 0:0:0:0:0:ffff:2a98:15fe
42.152.21.255 0:0:0:0:0:ffff:2a98:15ff


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.