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
48.72.21.1 0:0:0:0:0:ffff:3048:1501
48.72.21.2 0:0:0:0:0:ffff:3048:1502
48.72.21.3 0:0:0:0:0:ffff:3048:1503
48.72.21.4 0:0:0:0:0:ffff:3048:1504
48.72.21.5 0:0:0:0:0:ffff:3048:1505
48.72.21.6 0:0:0:0:0:ffff:3048:1506
48.72.21.7 0:0:0:0:0:ffff:3048:1507
48.72.21.8 0:0:0:0:0:ffff:3048:1508
48.72.21.9 0:0:0:0:0:ffff:3048:1509
48.72.21.10 0:0:0:0:0:ffff:3048:150a
48.72.21.11 0:0:0:0:0:ffff:3048:150b
48.72.21.12 0:0:0:0:0:ffff:3048:150c
48.72.21.13 0:0:0:0:0:ffff:3048:150d
48.72.21.14 0:0:0:0:0:ffff:3048:150e
48.72.21.15 0:0:0:0:0:ffff:3048:150f
48.72.21.16 0:0:0:0:0:ffff:3048:1510
48.72.21.17 0:0:0:0:0:ffff:3048:1511
48.72.21.18 0:0:0:0:0:ffff:3048:1512
48.72.21.19 0:0:0:0:0:ffff:3048:1513
48.72.21.20 0:0:0:0:0:ffff:3048:1514
48.72.21.21 0:0:0:0:0:ffff:3048:1515
48.72.21.22 0:0:0:0:0:ffff:3048:1516
48.72.21.23 0:0:0:0:0:ffff:3048:1517
48.72.21.24 0:0:0:0:0:ffff:3048:1518
48.72.21.25 0:0:0:0:0:ffff:3048:1519
48.72.21.26 0:0:0:0:0:ffff:3048:151a
48.72.21.27 0:0:0:0:0:ffff:3048:151b
48.72.21.28 0:0:0:0:0:ffff:3048:151c
48.72.21.29 0:0:0:0:0:ffff:3048:151d
48.72.21.30 0:0:0:0:0:ffff:3048:151e
48.72.21.31 0:0:0:0:0:ffff:3048:151f
48.72.21.32 0:0:0:0:0:ffff:3048:1520
48.72.21.33 0:0:0:0:0:ffff:3048:1521
48.72.21.34 0:0:0:0:0:ffff:3048:1522
48.72.21.35 0:0:0:0:0:ffff:3048:1523
48.72.21.36 0:0:0:0:0:ffff:3048:1524
48.72.21.37 0:0:0:0:0:ffff:3048:1525
48.72.21.38 0:0:0:0:0:ffff:3048:1526
48.72.21.39 0:0:0:0:0:ffff:3048:1527
48.72.21.40 0:0:0:0:0:ffff:3048:1528
48.72.21.41 0:0:0:0:0:ffff:3048:1529
48.72.21.42 0:0:0:0:0:ffff:3048:152a
48.72.21.43 0:0:0:0:0:ffff:3048:152b
48.72.21.44 0:0:0:0:0:ffff:3048:152c
48.72.21.45 0:0:0:0:0:ffff:3048:152d
48.72.21.46 0:0:0:0:0:ffff:3048:152e
48.72.21.47 0:0:0:0:0:ffff:3048:152f
48.72.21.48 0:0:0:0:0:ffff:3048:1530
48.72.21.49 0:0:0:0:0:ffff:3048:1531
48.72.21.50 0:0:0:0:0:ffff:3048:1532
48.72.21.51 0:0:0:0:0:ffff:3048:1533
48.72.21.52 0:0:0:0:0:ffff:3048:1534
48.72.21.53 0:0:0:0:0:ffff:3048:1535
48.72.21.54 0:0:0:0:0:ffff:3048:1536
48.72.21.55 0:0:0:0:0:ffff:3048:1537
48.72.21.56 0:0:0:0:0:ffff:3048:1538
48.72.21.57 0:0:0:0:0:ffff:3048:1539
48.72.21.58 0:0:0:0:0:ffff:3048:153a
48.72.21.59 0:0:0:0:0:ffff:3048:153b
48.72.21.60 0:0:0:0:0:ffff:3048:153c


48.72.21.61 0:0:0:0:0:ffff:3048:153d
48.72.21.62 0:0:0:0:0:ffff:3048:153e
48.72.21.63 0:0:0:0:0:ffff:3048:153f
48.72.21.64 0:0:0:0:0:ffff:3048:1540
48.72.21.65 0:0:0:0:0:ffff:3048:1541
48.72.21.66 0:0:0:0:0:ffff:3048:1542
48.72.21.67 0:0:0:0:0:ffff:3048:1543
48.72.21.68 0:0:0:0:0:ffff:3048:1544
48.72.21.69 0:0:0:0:0:ffff:3048:1545
48.72.21.70 0:0:0:0:0:ffff:3048:1546
48.72.21.71 0:0:0:0:0:ffff:3048:1547
48.72.21.72 0:0:0:0:0:ffff:3048:1548
48.72.21.73 0:0:0:0:0:ffff:3048:1549
48.72.21.74 0:0:0:0:0:ffff:3048:154a
48.72.21.75 0:0:0:0:0:ffff:3048:154b
48.72.21.76 0:0:0:0:0:ffff:3048:154c
48.72.21.77 0:0:0:0:0:ffff:3048:154d
48.72.21.78 0:0:0:0:0:ffff:3048:154e
48.72.21.79 0:0:0:0:0:ffff:3048:154f
48.72.21.80 0:0:0:0:0:ffff:3048:1550
48.72.21.81 0:0:0:0:0:ffff:3048:1551
48.72.21.82 0:0:0:0:0:ffff:3048:1552
48.72.21.83 0:0:0:0:0:ffff:3048:1553
48.72.21.84 0:0:0:0:0:ffff:3048:1554
48.72.21.85 0:0:0:0:0:ffff:3048:1555
48.72.21.86 0:0:0:0:0:ffff:3048:1556
48.72.21.87 0:0:0:0:0:ffff:3048:1557
48.72.21.88 0:0:0:0:0:ffff:3048:1558
48.72.21.89 0:0:0:0:0:ffff:3048:1559
48.72.21.90 0:0:0:0:0:ffff:3048:155a
48.72.21.91 0:0:0:0:0:ffff:3048:155b
48.72.21.92 0:0:0:0:0:ffff:3048:155c
48.72.21.93 0:0:0:0:0:ffff:3048:155d
48.72.21.94 0:0:0:0:0:ffff:3048:155e
48.72.21.95 0:0:0:0:0:ffff:3048:155f
48.72.21.96 0:0:0:0:0:ffff:3048:1560
48.72.21.97 0:0:0:0:0:ffff:3048:1561
48.72.21.98 0:0:0:0:0:ffff:3048:1562
48.72.21.99 0:0:0:0:0:ffff:3048:1563
48.72.21.100 0:0:0:0:0:ffff:3048:1564
48.72.21.101 0:0:0:0:0:ffff:3048:1565
48.72.21.102 0:0:0:0:0:ffff:3048:1566
48.72.21.103 0:0:0:0:0:ffff:3048:1567
48.72.21.104 0:0:0:0:0:ffff:3048:1568
48.72.21.105 0:0:0:0:0:ffff:3048:1569
48.72.21.106 0:0:0:0:0:ffff:3048:156a
48.72.21.107 0:0:0:0:0:ffff:3048:156b
48.72.21.108 0:0:0:0:0:ffff:3048:156c
48.72.21.109 0:0:0:0:0:ffff:3048:156d
48.72.21.110 0:0:0:0:0:ffff:3048:156e
48.72.21.111 0:0:0:0:0:ffff:3048:156f
48.72.21.112 0:0:0:0:0:ffff:3048:1570
48.72.21.113 0:0:0:0:0:ffff:3048:1571
48.72.21.114 0:0:0:0:0:ffff:3048:1572
48.72.21.115 0:0:0:0:0:ffff:3048:1573
48.72.21.116 0:0:0:0:0:ffff:3048:1574
48.72.21.117 0:0:0:0:0:ffff:3048:1575
48.72.21.118 0:0:0:0:0:ffff:3048:1576
48.72.21.119 0:0:0:0:0:ffff:3048:1577
48.72.21.120 0:0:0:0:0:ffff:3048:1578


48.72.21.121 0:0:0:0:0:ffff:3048:1579
48.72.21.122 0:0:0:0:0:ffff:3048:157a
48.72.21.123 0:0:0:0:0:ffff:3048:157b
48.72.21.124 0:0:0:0:0:ffff:3048:157c
48.72.21.125 0:0:0:0:0:ffff:3048:157d
48.72.21.126 0:0:0:0:0:ffff:3048:157e
48.72.21.127 0:0:0:0:0:ffff:3048:157f
48.72.21.128 0:0:0:0:0:ffff:3048:1580
48.72.21.129 0:0:0:0:0:ffff:3048:1581
48.72.21.130 0:0:0:0:0:ffff:3048:1582
48.72.21.131 0:0:0:0:0:ffff:3048:1583
48.72.21.132 0:0:0:0:0:ffff:3048:1584
48.72.21.133 0:0:0:0:0:ffff:3048:1585
48.72.21.134 0:0:0:0:0:ffff:3048:1586
48.72.21.135 0:0:0:0:0:ffff:3048:1587
48.72.21.136 0:0:0:0:0:ffff:3048:1588
48.72.21.137 0:0:0:0:0:ffff:3048:1589
48.72.21.138 0:0:0:0:0:ffff:3048:158a
48.72.21.139 0:0:0:0:0:ffff:3048:158b
48.72.21.140 0:0:0:0:0:ffff:3048:158c
48.72.21.141 0:0:0:0:0:ffff:3048:158d
48.72.21.142 0:0:0:0:0:ffff:3048:158e
48.72.21.143 0:0:0:0:0:ffff:3048:158f
48.72.21.144 0:0:0:0:0:ffff:3048:1590
48.72.21.145 0:0:0:0:0:ffff:3048:1591
48.72.21.146 0:0:0:0:0:ffff:3048:1592
48.72.21.147 0:0:0:0:0:ffff:3048:1593
48.72.21.148 0:0:0:0:0:ffff:3048:1594
48.72.21.149 0:0:0:0:0:ffff:3048:1595
48.72.21.150 0:0:0:0:0:ffff:3048:1596
48.72.21.151 0:0:0:0:0:ffff:3048:1597
48.72.21.152 0:0:0:0:0:ffff:3048:1598
48.72.21.153 0:0:0:0:0:ffff:3048:1599
48.72.21.154 0:0:0:0:0:ffff:3048:159a
48.72.21.155 0:0:0:0:0:ffff:3048:159b
48.72.21.156 0:0:0:0:0:ffff:3048:159c
48.72.21.157 0:0:0:0:0:ffff:3048:159d
48.72.21.158 0:0:0:0:0:ffff:3048:159e
48.72.21.159 0:0:0:0:0:ffff:3048:159f
48.72.21.160 0:0:0:0:0:ffff:3048:15a0
48.72.21.161 0:0:0:0:0:ffff:3048:15a1
48.72.21.162 0:0:0:0:0:ffff:3048:15a2
48.72.21.163 0:0:0:0:0:ffff:3048:15a3
48.72.21.164 0:0:0:0:0:ffff:3048:15a4
48.72.21.165 0:0:0:0:0:ffff:3048:15a5
48.72.21.166 0:0:0:0:0:ffff:3048:15a6
48.72.21.167 0:0:0:0:0:ffff:3048:15a7
48.72.21.168 0:0:0:0:0:ffff:3048:15a8
48.72.21.169 0:0:0:0:0:ffff:3048:15a9
48.72.21.170 0:0:0:0:0:ffff:3048:15aa
48.72.21.171 0:0:0:0:0:ffff:3048:15ab
48.72.21.172 0:0:0:0:0:ffff:3048:15ac
48.72.21.173 0:0:0:0:0:ffff:3048:15ad
48.72.21.174 0:0:0:0:0:ffff:3048:15ae
48.72.21.175 0:0:0:0:0:ffff:3048:15af
48.72.21.176 0:0:0:0:0:ffff:3048:15b0
48.72.21.177 0:0:0:0:0:ffff:3048:15b1
48.72.21.178 0:0:0:0:0:ffff:3048:15b2
48.72.21.179 0:0:0:0:0:ffff:3048:15b3
48.72.21.180 0:0:0:0:0:ffff:3048:15b4


48.72.21.181 0:0:0:0:0:ffff:3048:15b5
48.72.21.182 0:0:0:0:0:ffff:3048:15b6
48.72.21.183 0:0:0:0:0:ffff:3048:15b7
48.72.21.184 0:0:0:0:0:ffff:3048:15b8
48.72.21.185 0:0:0:0:0:ffff:3048:15b9
48.72.21.186 0:0:0:0:0:ffff:3048:15ba
48.72.21.187 0:0:0:0:0:ffff:3048:15bb
48.72.21.188 0:0:0:0:0:ffff:3048:15bc
48.72.21.189 0:0:0:0:0:ffff:3048:15bd
48.72.21.190 0:0:0:0:0:ffff:3048:15be
48.72.21.191 0:0:0:0:0:ffff:3048:15bf
48.72.21.192 0:0:0:0:0:ffff:3048:15c0
48.72.21.193 0:0:0:0:0:ffff:3048:15c1
48.72.21.194 0:0:0:0:0:ffff:3048:15c2
48.72.21.195 0:0:0:0:0:ffff:3048:15c3
48.72.21.196 0:0:0:0:0:ffff:3048:15c4
48.72.21.197 0:0:0:0:0:ffff:3048:15c5
48.72.21.198 0:0:0:0:0:ffff:3048:15c6
48.72.21.199 0:0:0:0:0:ffff:3048:15c7
48.72.21.200 0:0:0:0:0:ffff:3048:15c8
48.72.21.201 0:0:0:0:0:ffff:3048:15c9
48.72.21.202 0:0:0:0:0:ffff:3048:15ca
48.72.21.203 0:0:0:0:0:ffff:3048:15cb
48.72.21.204 0:0:0:0:0:ffff:3048:15cc
48.72.21.205 0:0:0:0:0:ffff:3048:15cd
48.72.21.206 0:0:0:0:0:ffff:3048:15ce
48.72.21.207 0:0:0:0:0:ffff:3048:15cf
48.72.21.208 0:0:0:0:0:ffff:3048:15d0
48.72.21.209 0:0:0:0:0:ffff:3048:15d1
48.72.21.210 0:0:0:0:0:ffff:3048:15d2
48.72.21.211 0:0:0:0:0:ffff:3048:15d3
48.72.21.212 0:0:0:0:0:ffff:3048:15d4
48.72.21.213 0:0:0:0:0:ffff:3048:15d5
48.72.21.214 0:0:0:0:0:ffff:3048:15d6
48.72.21.215 0:0:0:0:0:ffff:3048:15d7
48.72.21.216 0:0:0:0:0:ffff:3048:15d8
48.72.21.217 0:0:0:0:0:ffff:3048:15d9
48.72.21.218 0:0:0:0:0:ffff:3048:15da
48.72.21.219 0:0:0:0:0:ffff:3048:15db
48.72.21.220 0:0:0:0:0:ffff:3048:15dc
48.72.21.221 0:0:0:0:0:ffff:3048:15dd
48.72.21.222 0:0:0:0:0:ffff:3048:15de
48.72.21.223 0:0:0:0:0:ffff:3048:15df
48.72.21.224 0:0:0:0:0:ffff:3048:15e0
48.72.21.225 0:0:0:0:0:ffff:3048:15e1
48.72.21.226 0:0:0:0:0:ffff:3048:15e2
48.72.21.227 0:0:0:0:0:ffff:3048:15e3
48.72.21.228 0:0:0:0:0:ffff:3048:15e4
48.72.21.229 0:0:0:0:0:ffff:3048:15e5
48.72.21.230 0:0:0:0:0:ffff:3048:15e6
48.72.21.231 0:0:0:0:0:ffff:3048:15e7
48.72.21.232 0:0:0:0:0:ffff:3048:15e8
48.72.21.233 0:0:0:0:0:ffff:3048:15e9
48.72.21.234 0:0:0:0:0:ffff:3048:15ea
48.72.21.235 0:0:0:0:0:ffff:3048:15eb
48.72.21.236 0:0:0:0:0:ffff:3048:15ec
48.72.21.237 0:0:0:0:0:ffff:3048:15ed
48.72.21.238 0:0:0:0:0:ffff:3048:15ee
48.72.21.239 0:0:0:0:0:ffff:3048:15ef
48.72.21.240 0:0:0:0:0:ffff:3048:15f0
48.72.21.241 0:0:0:0:0:ffff:3048:15f1
48.72.21.242 0:0:0:0:0:ffff:3048:15f2
48.72.21.243 0:0:0:0:0:ffff:3048:15f3
48.72.21.244 0:0:0:0:0:ffff:3048:15f4
48.72.21.245 0:0:0:0:0:ffff:3048:15f5
48.72.21.246 0:0:0:0:0:ffff:3048:15f6
48.72.21.247 0:0:0:0:0:ffff:3048:15f7
48.72.21.248 0:0:0:0:0:ffff:3048:15f8
48.72.21.249 0:0:0:0:0:ffff:3048:15f9
48.72.21.250 0:0:0:0:0:ffff:3048:15fa
48.72.21.251 0:0:0:0:0:ffff:3048:15fb
48.72.21.252 0:0:0:0:0:ffff:3048:15fc
48.72.21.253 0:0:0:0:0:ffff:3048:15fd
48.72.21.254 0:0:0:0:0:ffff:3048:15fe
48.72.21.255 0:0:0:0:0:ffff:3048:15ff


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.