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
78.30.21.1 0:0:0:0:0:ffff:4e1e:1501
78.30.21.2 0:0:0:0:0:ffff:4e1e:1502
78.30.21.3 0:0:0:0:0:ffff:4e1e:1503
78.30.21.4 0:0:0:0:0:ffff:4e1e:1504
78.30.21.5 0:0:0:0:0:ffff:4e1e:1505
78.30.21.6 0:0:0:0:0:ffff:4e1e:1506
78.30.21.7 0:0:0:0:0:ffff:4e1e:1507
78.30.21.8 0:0:0:0:0:ffff:4e1e:1508
78.30.21.9 0:0:0:0:0:ffff:4e1e:1509
78.30.21.10 0:0:0:0:0:ffff:4e1e:150a
78.30.21.11 0:0:0:0:0:ffff:4e1e:150b
78.30.21.12 0:0:0:0:0:ffff:4e1e:150c
78.30.21.13 0:0:0:0:0:ffff:4e1e:150d
78.30.21.14 0:0:0:0:0:ffff:4e1e:150e
78.30.21.15 0:0:0:0:0:ffff:4e1e:150f
78.30.21.16 0:0:0:0:0:ffff:4e1e:1510
78.30.21.17 0:0:0:0:0:ffff:4e1e:1511
78.30.21.18 0:0:0:0:0:ffff:4e1e:1512
78.30.21.19 0:0:0:0:0:ffff:4e1e:1513
78.30.21.20 0:0:0:0:0:ffff:4e1e:1514
78.30.21.21 0:0:0:0:0:ffff:4e1e:1515
78.30.21.22 0:0:0:0:0:ffff:4e1e:1516
78.30.21.23 0:0:0:0:0:ffff:4e1e:1517
78.30.21.24 0:0:0:0:0:ffff:4e1e:1518
78.30.21.25 0:0:0:0:0:ffff:4e1e:1519
78.30.21.26 0:0:0:0:0:ffff:4e1e:151a
78.30.21.27 0:0:0:0:0:ffff:4e1e:151b
78.30.21.28 0:0:0:0:0:ffff:4e1e:151c
78.30.21.29 0:0:0:0:0:ffff:4e1e:151d
78.30.21.30 0:0:0:0:0:ffff:4e1e:151e
78.30.21.31 0:0:0:0:0:ffff:4e1e:151f
78.30.21.32 0:0:0:0:0:ffff:4e1e:1520
78.30.21.33 0:0:0:0:0:ffff:4e1e:1521
78.30.21.34 0:0:0:0:0:ffff:4e1e:1522
78.30.21.35 0:0:0:0:0:ffff:4e1e:1523
78.30.21.36 0:0:0:0:0:ffff:4e1e:1524
78.30.21.37 0:0:0:0:0:ffff:4e1e:1525
78.30.21.38 0:0:0:0:0:ffff:4e1e:1526
78.30.21.39 0:0:0:0:0:ffff:4e1e:1527
78.30.21.40 0:0:0:0:0:ffff:4e1e:1528
78.30.21.41 0:0:0:0:0:ffff:4e1e:1529
78.30.21.42 0:0:0:0:0:ffff:4e1e:152a
78.30.21.43 0:0:0:0:0:ffff:4e1e:152b
78.30.21.44 0:0:0:0:0:ffff:4e1e:152c
78.30.21.45 0:0:0:0:0:ffff:4e1e:152d
78.30.21.46 0:0:0:0:0:ffff:4e1e:152e
78.30.21.47 0:0:0:0:0:ffff:4e1e:152f
78.30.21.48 0:0:0:0:0:ffff:4e1e:1530
78.30.21.49 0:0:0:0:0:ffff:4e1e:1531
78.30.21.50 0:0:0:0:0:ffff:4e1e:1532
78.30.21.51 0:0:0:0:0:ffff:4e1e:1533
78.30.21.52 0:0:0:0:0:ffff:4e1e:1534
78.30.21.53 0:0:0:0:0:ffff:4e1e:1535
78.30.21.54 0:0:0:0:0:ffff:4e1e:1536
78.30.21.55 0:0:0:0:0:ffff:4e1e:1537
78.30.21.56 0:0:0:0:0:ffff:4e1e:1538
78.30.21.57 0:0:0:0:0:ffff:4e1e:1539
78.30.21.58 0:0:0:0:0:ffff:4e1e:153a
78.30.21.59 0:0:0:0:0:ffff:4e1e:153b
78.30.21.60 0:0:0:0:0:ffff:4e1e:153c


78.30.21.61 0:0:0:0:0:ffff:4e1e:153d
78.30.21.62 0:0:0:0:0:ffff:4e1e:153e
78.30.21.63 0:0:0:0:0:ffff:4e1e:153f
78.30.21.64 0:0:0:0:0:ffff:4e1e:1540
78.30.21.65 0:0:0:0:0:ffff:4e1e:1541
78.30.21.66 0:0:0:0:0:ffff:4e1e:1542
78.30.21.67 0:0:0:0:0:ffff:4e1e:1543
78.30.21.68 0:0:0:0:0:ffff:4e1e:1544
78.30.21.69 0:0:0:0:0:ffff:4e1e:1545
78.30.21.70 0:0:0:0:0:ffff:4e1e:1546
78.30.21.71 0:0:0:0:0:ffff:4e1e:1547
78.30.21.72 0:0:0:0:0:ffff:4e1e:1548
78.30.21.73 0:0:0:0:0:ffff:4e1e:1549
78.30.21.74 0:0:0:0:0:ffff:4e1e:154a
78.30.21.75 0:0:0:0:0:ffff:4e1e:154b
78.30.21.76 0:0:0:0:0:ffff:4e1e:154c
78.30.21.77 0:0:0:0:0:ffff:4e1e:154d
78.30.21.78 0:0:0:0:0:ffff:4e1e:154e
78.30.21.79 0:0:0:0:0:ffff:4e1e:154f
78.30.21.80 0:0:0:0:0:ffff:4e1e:1550
78.30.21.81 0:0:0:0:0:ffff:4e1e:1551
78.30.21.82 0:0:0:0:0:ffff:4e1e:1552
78.30.21.83 0:0:0:0:0:ffff:4e1e:1553
78.30.21.84 0:0:0:0:0:ffff:4e1e:1554
78.30.21.85 0:0:0:0:0:ffff:4e1e:1555
78.30.21.86 0:0:0:0:0:ffff:4e1e:1556
78.30.21.87 0:0:0:0:0:ffff:4e1e:1557
78.30.21.88 0:0:0:0:0:ffff:4e1e:1558
78.30.21.89 0:0:0:0:0:ffff:4e1e:1559
78.30.21.90 0:0:0:0:0:ffff:4e1e:155a
78.30.21.91 0:0:0:0:0:ffff:4e1e:155b
78.30.21.92 0:0:0:0:0:ffff:4e1e:155c
78.30.21.93 0:0:0:0:0:ffff:4e1e:155d
78.30.21.94 0:0:0:0:0:ffff:4e1e:155e
78.30.21.95 0:0:0:0:0:ffff:4e1e:155f
78.30.21.96 0:0:0:0:0:ffff:4e1e:1560
78.30.21.97 0:0:0:0:0:ffff:4e1e:1561
78.30.21.98 0:0:0:0:0:ffff:4e1e:1562
78.30.21.99 0:0:0:0:0:ffff:4e1e:1563
78.30.21.100 0:0:0:0:0:ffff:4e1e:1564
78.30.21.101 0:0:0:0:0:ffff:4e1e:1565
78.30.21.102 0:0:0:0:0:ffff:4e1e:1566
78.30.21.103 0:0:0:0:0:ffff:4e1e:1567
78.30.21.104 0:0:0:0:0:ffff:4e1e:1568
78.30.21.105 0:0:0:0:0:ffff:4e1e:1569
78.30.21.106 0:0:0:0:0:ffff:4e1e:156a
78.30.21.107 0:0:0:0:0:ffff:4e1e:156b
78.30.21.108 0:0:0:0:0:ffff:4e1e:156c
78.30.21.109 0:0:0:0:0:ffff:4e1e:156d
78.30.21.110 0:0:0:0:0:ffff:4e1e:156e
78.30.21.111 0:0:0:0:0:ffff:4e1e:156f
78.30.21.112 0:0:0:0:0:ffff:4e1e:1570
78.30.21.113 0:0:0:0:0:ffff:4e1e:1571
78.30.21.114 0:0:0:0:0:ffff:4e1e:1572
78.30.21.115 0:0:0:0:0:ffff:4e1e:1573
78.30.21.116 0:0:0:0:0:ffff:4e1e:1574
78.30.21.117 0:0:0:0:0:ffff:4e1e:1575
78.30.21.118 0:0:0:0:0:ffff:4e1e:1576
78.30.21.119 0:0:0:0:0:ffff:4e1e:1577
78.30.21.120 0:0:0:0:0:ffff:4e1e:1578


78.30.21.121 0:0:0:0:0:ffff:4e1e:1579
78.30.21.122 0:0:0:0:0:ffff:4e1e:157a
78.30.21.123 0:0:0:0:0:ffff:4e1e:157b
78.30.21.124 0:0:0:0:0:ffff:4e1e:157c
78.30.21.125 0:0:0:0:0:ffff:4e1e:157d
78.30.21.126 0:0:0:0:0:ffff:4e1e:157e
78.30.21.127 0:0:0:0:0:ffff:4e1e:157f
78.30.21.128 0:0:0:0:0:ffff:4e1e:1580
78.30.21.129 0:0:0:0:0:ffff:4e1e:1581
78.30.21.130 0:0:0:0:0:ffff:4e1e:1582
78.30.21.131 0:0:0:0:0:ffff:4e1e:1583
78.30.21.132 0:0:0:0:0:ffff:4e1e:1584
78.30.21.133 0:0:0:0:0:ffff:4e1e:1585
78.30.21.134 0:0:0:0:0:ffff:4e1e:1586
78.30.21.135 0:0:0:0:0:ffff:4e1e:1587
78.30.21.136 0:0:0:0:0:ffff:4e1e:1588
78.30.21.137 0:0:0:0:0:ffff:4e1e:1589
78.30.21.138 0:0:0:0:0:ffff:4e1e:158a
78.30.21.139 0:0:0:0:0:ffff:4e1e:158b
78.30.21.140 0:0:0:0:0:ffff:4e1e:158c
78.30.21.141 0:0:0:0:0:ffff:4e1e:158d
78.30.21.142 0:0:0:0:0:ffff:4e1e:158e
78.30.21.143 0:0:0:0:0:ffff:4e1e:158f
78.30.21.144 0:0:0:0:0:ffff:4e1e:1590
78.30.21.145 0:0:0:0:0:ffff:4e1e:1591
78.30.21.146 0:0:0:0:0:ffff:4e1e:1592
78.30.21.147 0:0:0:0:0:ffff:4e1e:1593
78.30.21.148 0:0:0:0:0:ffff:4e1e:1594
78.30.21.149 0:0:0:0:0:ffff:4e1e:1595
78.30.21.150 0:0:0:0:0:ffff:4e1e:1596
78.30.21.151 0:0:0:0:0:ffff:4e1e:1597
78.30.21.152 0:0:0:0:0:ffff:4e1e:1598
78.30.21.153 0:0:0:0:0:ffff:4e1e:1599
78.30.21.154 0:0:0:0:0:ffff:4e1e:159a
78.30.21.155 0:0:0:0:0:ffff:4e1e:159b
78.30.21.156 0:0:0:0:0:ffff:4e1e:159c
78.30.21.157 0:0:0:0:0:ffff:4e1e:159d
78.30.21.158 0:0:0:0:0:ffff:4e1e:159e
78.30.21.159 0:0:0:0:0:ffff:4e1e:159f
78.30.21.160 0:0:0:0:0:ffff:4e1e:15a0
78.30.21.161 0:0:0:0:0:ffff:4e1e:15a1
78.30.21.162 0:0:0:0:0:ffff:4e1e:15a2
78.30.21.163 0:0:0:0:0:ffff:4e1e:15a3
78.30.21.164 0:0:0:0:0:ffff:4e1e:15a4
78.30.21.165 0:0:0:0:0:ffff:4e1e:15a5
78.30.21.166 0:0:0:0:0:ffff:4e1e:15a6
78.30.21.167 0:0:0:0:0:ffff:4e1e:15a7
78.30.21.168 0:0:0:0:0:ffff:4e1e:15a8
78.30.21.169 0:0:0:0:0:ffff:4e1e:15a9
78.30.21.170 0:0:0:0:0:ffff:4e1e:15aa
78.30.21.171 0:0:0:0:0:ffff:4e1e:15ab
78.30.21.172 0:0:0:0:0:ffff:4e1e:15ac
78.30.21.173 0:0:0:0:0:ffff:4e1e:15ad
78.30.21.174 0:0:0:0:0:ffff:4e1e:15ae
78.30.21.175 0:0:0:0:0:ffff:4e1e:15af
78.30.21.176 0:0:0:0:0:ffff:4e1e:15b0
78.30.21.177 0:0:0:0:0:ffff:4e1e:15b1
78.30.21.178 0:0:0:0:0:ffff:4e1e:15b2
78.30.21.179 0:0:0:0:0:ffff:4e1e:15b3
78.30.21.180 0:0:0:0:0:ffff:4e1e:15b4


78.30.21.181 0:0:0:0:0:ffff:4e1e:15b5
78.30.21.182 0:0:0:0:0:ffff:4e1e:15b6
78.30.21.183 0:0:0:0:0:ffff:4e1e:15b7
78.30.21.184 0:0:0:0:0:ffff:4e1e:15b8
78.30.21.185 0:0:0:0:0:ffff:4e1e:15b9
78.30.21.186 0:0:0:0:0:ffff:4e1e:15ba
78.30.21.187 0:0:0:0:0:ffff:4e1e:15bb
78.30.21.188 0:0:0:0:0:ffff:4e1e:15bc
78.30.21.189 0:0:0:0:0:ffff:4e1e:15bd
78.30.21.190 0:0:0:0:0:ffff:4e1e:15be
78.30.21.191 0:0:0:0:0:ffff:4e1e:15bf
78.30.21.192 0:0:0:0:0:ffff:4e1e:15c0
78.30.21.193 0:0:0:0:0:ffff:4e1e:15c1
78.30.21.194 0:0:0:0:0:ffff:4e1e:15c2
78.30.21.195 0:0:0:0:0:ffff:4e1e:15c3
78.30.21.196 0:0:0:0:0:ffff:4e1e:15c4
78.30.21.197 0:0:0:0:0:ffff:4e1e:15c5
78.30.21.198 0:0:0:0:0:ffff:4e1e:15c6
78.30.21.199 0:0:0:0:0:ffff:4e1e:15c7
78.30.21.200 0:0:0:0:0:ffff:4e1e:15c8
78.30.21.201 0:0:0:0:0:ffff:4e1e:15c9
78.30.21.202 0:0:0:0:0:ffff:4e1e:15ca
78.30.21.203 0:0:0:0:0:ffff:4e1e:15cb
78.30.21.204 0:0:0:0:0:ffff:4e1e:15cc
78.30.21.205 0:0:0:0:0:ffff:4e1e:15cd
78.30.21.206 0:0:0:0:0:ffff:4e1e:15ce
78.30.21.207 0:0:0:0:0:ffff:4e1e:15cf
78.30.21.208 0:0:0:0:0:ffff:4e1e:15d0
78.30.21.209 0:0:0:0:0:ffff:4e1e:15d1
78.30.21.210 0:0:0:0:0:ffff:4e1e:15d2
78.30.21.211 0:0:0:0:0:ffff:4e1e:15d3
78.30.21.212 0:0:0:0:0:ffff:4e1e:15d4
78.30.21.213 0:0:0:0:0:ffff:4e1e:15d5
78.30.21.214 0:0:0:0:0:ffff:4e1e:15d6
78.30.21.215 0:0:0:0:0:ffff:4e1e:15d7
78.30.21.216 0:0:0:0:0:ffff:4e1e:15d8
78.30.21.217 0:0:0:0:0:ffff:4e1e:15d9
78.30.21.218 0:0:0:0:0:ffff:4e1e:15da
78.30.21.219 0:0:0:0:0:ffff:4e1e:15db
78.30.21.220 0:0:0:0:0:ffff:4e1e:15dc
78.30.21.221 0:0:0:0:0:ffff:4e1e:15dd
78.30.21.222 0:0:0:0:0:ffff:4e1e:15de
78.30.21.223 0:0:0:0:0:ffff:4e1e:15df
78.30.21.224 0:0:0:0:0:ffff:4e1e:15e0
78.30.21.225 0:0:0:0:0:ffff:4e1e:15e1
78.30.21.226 0:0:0:0:0:ffff:4e1e:15e2
78.30.21.227 0:0:0:0:0:ffff:4e1e:15e3
78.30.21.228 0:0:0:0:0:ffff:4e1e:15e4
78.30.21.229 0:0:0:0:0:ffff:4e1e:15e5
78.30.21.230 0:0:0:0:0:ffff:4e1e:15e6
78.30.21.231 0:0:0:0:0:ffff:4e1e:15e7
78.30.21.232 0:0:0:0:0:ffff:4e1e:15e8
78.30.21.233 0:0:0:0:0:ffff:4e1e:15e9
78.30.21.234 0:0:0:0:0:ffff:4e1e:15ea
78.30.21.235 0:0:0:0:0:ffff:4e1e:15eb
78.30.21.236 0:0:0:0:0:ffff:4e1e:15ec
78.30.21.237 0:0:0:0:0:ffff:4e1e:15ed
78.30.21.238 0:0:0:0:0:ffff:4e1e:15ee
78.30.21.239 0:0:0:0:0:ffff:4e1e:15ef
78.30.21.240 0:0:0:0:0:ffff:4e1e:15f0
78.30.21.241 0:0:0:0:0:ffff:4e1e:15f1
78.30.21.242 0:0:0:0:0:ffff:4e1e:15f2
78.30.21.243 0:0:0:0:0:ffff:4e1e:15f3
78.30.21.244 0:0:0:0:0:ffff:4e1e:15f4
78.30.21.245 0:0:0:0:0:ffff:4e1e:15f5
78.30.21.246 0:0:0:0:0:ffff:4e1e:15f6
78.30.21.247 0:0:0:0:0:ffff:4e1e:15f7
78.30.21.248 0:0:0:0:0:ffff:4e1e:15f8
78.30.21.249 0:0:0:0:0:ffff:4e1e:15f9
78.30.21.250 0:0:0:0:0:ffff:4e1e:15fa
78.30.21.251 0:0:0:0:0:ffff:4e1e:15fb
78.30.21.252 0:0:0:0:0:ffff:4e1e:15fc
78.30.21.253 0:0:0:0:0:ffff:4e1e:15fd
78.30.21.254 0:0:0:0:0:ffff:4e1e:15fe
78.30.21.255 0:0:0:0:0:ffff:4e1e: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.