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
99.104.21.1 0:0:0:0:0:ffff:6368:1501
99.104.21.2 0:0:0:0:0:ffff:6368:1502
99.104.21.3 0:0:0:0:0:ffff:6368:1503
99.104.21.4 0:0:0:0:0:ffff:6368:1504
99.104.21.5 0:0:0:0:0:ffff:6368:1505
99.104.21.6 0:0:0:0:0:ffff:6368:1506
99.104.21.7 0:0:0:0:0:ffff:6368:1507
99.104.21.8 0:0:0:0:0:ffff:6368:1508
99.104.21.9 0:0:0:0:0:ffff:6368:1509
99.104.21.10 0:0:0:0:0:ffff:6368:150a
99.104.21.11 0:0:0:0:0:ffff:6368:150b
99.104.21.12 0:0:0:0:0:ffff:6368:150c
99.104.21.13 0:0:0:0:0:ffff:6368:150d
99.104.21.14 0:0:0:0:0:ffff:6368:150e
99.104.21.15 0:0:0:0:0:ffff:6368:150f
99.104.21.16 0:0:0:0:0:ffff:6368:1510
99.104.21.17 0:0:0:0:0:ffff:6368:1511
99.104.21.18 0:0:0:0:0:ffff:6368:1512
99.104.21.19 0:0:0:0:0:ffff:6368:1513
99.104.21.20 0:0:0:0:0:ffff:6368:1514
99.104.21.21 0:0:0:0:0:ffff:6368:1515
99.104.21.22 0:0:0:0:0:ffff:6368:1516
99.104.21.23 0:0:0:0:0:ffff:6368:1517
99.104.21.24 0:0:0:0:0:ffff:6368:1518
99.104.21.25 0:0:0:0:0:ffff:6368:1519
99.104.21.26 0:0:0:0:0:ffff:6368:151a
99.104.21.27 0:0:0:0:0:ffff:6368:151b
99.104.21.28 0:0:0:0:0:ffff:6368:151c
99.104.21.29 0:0:0:0:0:ffff:6368:151d
99.104.21.30 0:0:0:0:0:ffff:6368:151e
99.104.21.31 0:0:0:0:0:ffff:6368:151f
99.104.21.32 0:0:0:0:0:ffff:6368:1520
99.104.21.33 0:0:0:0:0:ffff:6368:1521
99.104.21.34 0:0:0:0:0:ffff:6368:1522
99.104.21.35 0:0:0:0:0:ffff:6368:1523
99.104.21.36 0:0:0:0:0:ffff:6368:1524
99.104.21.37 0:0:0:0:0:ffff:6368:1525
99.104.21.38 0:0:0:0:0:ffff:6368:1526
99.104.21.39 0:0:0:0:0:ffff:6368:1527
99.104.21.40 0:0:0:0:0:ffff:6368:1528
99.104.21.41 0:0:0:0:0:ffff:6368:1529
99.104.21.42 0:0:0:0:0:ffff:6368:152a
99.104.21.43 0:0:0:0:0:ffff:6368:152b
99.104.21.44 0:0:0:0:0:ffff:6368:152c
99.104.21.45 0:0:0:0:0:ffff:6368:152d
99.104.21.46 0:0:0:0:0:ffff:6368:152e
99.104.21.47 0:0:0:0:0:ffff:6368:152f
99.104.21.48 0:0:0:0:0:ffff:6368:1530
99.104.21.49 0:0:0:0:0:ffff:6368:1531
99.104.21.50 0:0:0:0:0:ffff:6368:1532
99.104.21.51 0:0:0:0:0:ffff:6368:1533
99.104.21.52 0:0:0:0:0:ffff:6368:1534
99.104.21.53 0:0:0:0:0:ffff:6368:1535
99.104.21.54 0:0:0:0:0:ffff:6368:1536
99.104.21.55 0:0:0:0:0:ffff:6368:1537
99.104.21.56 0:0:0:0:0:ffff:6368:1538
99.104.21.57 0:0:0:0:0:ffff:6368:1539
99.104.21.58 0:0:0:0:0:ffff:6368:153a
99.104.21.59 0:0:0:0:0:ffff:6368:153b
99.104.21.60 0:0:0:0:0:ffff:6368:153c


99.104.21.61 0:0:0:0:0:ffff:6368:153d
99.104.21.62 0:0:0:0:0:ffff:6368:153e
99.104.21.63 0:0:0:0:0:ffff:6368:153f
99.104.21.64 0:0:0:0:0:ffff:6368:1540
99.104.21.65 0:0:0:0:0:ffff:6368:1541
99.104.21.66 0:0:0:0:0:ffff:6368:1542
99.104.21.67 0:0:0:0:0:ffff:6368:1543
99.104.21.68 0:0:0:0:0:ffff:6368:1544
99.104.21.69 0:0:0:0:0:ffff:6368:1545
99.104.21.70 0:0:0:0:0:ffff:6368:1546
99.104.21.71 0:0:0:0:0:ffff:6368:1547
99.104.21.72 0:0:0:0:0:ffff:6368:1548
99.104.21.73 0:0:0:0:0:ffff:6368:1549
99.104.21.74 0:0:0:0:0:ffff:6368:154a
99.104.21.75 0:0:0:0:0:ffff:6368:154b
99.104.21.76 0:0:0:0:0:ffff:6368:154c
99.104.21.77 0:0:0:0:0:ffff:6368:154d
99.104.21.78 0:0:0:0:0:ffff:6368:154e
99.104.21.79 0:0:0:0:0:ffff:6368:154f
99.104.21.80 0:0:0:0:0:ffff:6368:1550
99.104.21.81 0:0:0:0:0:ffff:6368:1551
99.104.21.82 0:0:0:0:0:ffff:6368:1552
99.104.21.83 0:0:0:0:0:ffff:6368:1553
99.104.21.84 0:0:0:0:0:ffff:6368:1554
99.104.21.85 0:0:0:0:0:ffff:6368:1555
99.104.21.86 0:0:0:0:0:ffff:6368:1556
99.104.21.87 0:0:0:0:0:ffff:6368:1557
99.104.21.88 0:0:0:0:0:ffff:6368:1558
99.104.21.89 0:0:0:0:0:ffff:6368:1559
99.104.21.90 0:0:0:0:0:ffff:6368:155a
99.104.21.91 0:0:0:0:0:ffff:6368:155b
99.104.21.92 0:0:0:0:0:ffff:6368:155c
99.104.21.93 0:0:0:0:0:ffff:6368:155d
99.104.21.94 0:0:0:0:0:ffff:6368:155e
99.104.21.95 0:0:0:0:0:ffff:6368:155f
99.104.21.96 0:0:0:0:0:ffff:6368:1560
99.104.21.97 0:0:0:0:0:ffff:6368:1561
99.104.21.98 0:0:0:0:0:ffff:6368:1562
99.104.21.99 0:0:0:0:0:ffff:6368:1563
99.104.21.100 0:0:0:0:0:ffff:6368:1564
99.104.21.101 0:0:0:0:0:ffff:6368:1565
99.104.21.102 0:0:0:0:0:ffff:6368:1566
99.104.21.103 0:0:0:0:0:ffff:6368:1567
99.104.21.104 0:0:0:0:0:ffff:6368:1568
99.104.21.105 0:0:0:0:0:ffff:6368:1569
99.104.21.106 0:0:0:0:0:ffff:6368:156a
99.104.21.107 0:0:0:0:0:ffff:6368:156b
99.104.21.108 0:0:0:0:0:ffff:6368:156c
99.104.21.109 0:0:0:0:0:ffff:6368:156d
99.104.21.110 0:0:0:0:0:ffff:6368:156e
99.104.21.111 0:0:0:0:0:ffff:6368:156f
99.104.21.112 0:0:0:0:0:ffff:6368:1570
99.104.21.113 0:0:0:0:0:ffff:6368:1571
99.104.21.114 0:0:0:0:0:ffff:6368:1572
99.104.21.115 0:0:0:0:0:ffff:6368:1573
99.104.21.116 0:0:0:0:0:ffff:6368:1574
99.104.21.117 0:0:0:0:0:ffff:6368:1575
99.104.21.118 0:0:0:0:0:ffff:6368:1576
99.104.21.119 0:0:0:0:0:ffff:6368:1577
99.104.21.120 0:0:0:0:0:ffff:6368:1578


99.104.21.121 0:0:0:0:0:ffff:6368:1579
99.104.21.122 0:0:0:0:0:ffff:6368:157a
99.104.21.123 0:0:0:0:0:ffff:6368:157b
99.104.21.124 0:0:0:0:0:ffff:6368:157c
99.104.21.125 0:0:0:0:0:ffff:6368:157d
99.104.21.126 0:0:0:0:0:ffff:6368:157e
99.104.21.127 0:0:0:0:0:ffff:6368:157f
99.104.21.128 0:0:0:0:0:ffff:6368:1580
99.104.21.129 0:0:0:0:0:ffff:6368:1581
99.104.21.130 0:0:0:0:0:ffff:6368:1582
99.104.21.131 0:0:0:0:0:ffff:6368:1583
99.104.21.132 0:0:0:0:0:ffff:6368:1584
99.104.21.133 0:0:0:0:0:ffff:6368:1585
99.104.21.134 0:0:0:0:0:ffff:6368:1586
99.104.21.135 0:0:0:0:0:ffff:6368:1587
99.104.21.136 0:0:0:0:0:ffff:6368:1588
99.104.21.137 0:0:0:0:0:ffff:6368:1589
99.104.21.138 0:0:0:0:0:ffff:6368:158a
99.104.21.139 0:0:0:0:0:ffff:6368:158b
99.104.21.140 0:0:0:0:0:ffff:6368:158c
99.104.21.141 0:0:0:0:0:ffff:6368:158d
99.104.21.142 0:0:0:0:0:ffff:6368:158e
99.104.21.143 0:0:0:0:0:ffff:6368:158f
99.104.21.144 0:0:0:0:0:ffff:6368:1590
99.104.21.145 0:0:0:0:0:ffff:6368:1591
99.104.21.146 0:0:0:0:0:ffff:6368:1592
99.104.21.147 0:0:0:0:0:ffff:6368:1593
99.104.21.148 0:0:0:0:0:ffff:6368:1594
99.104.21.149 0:0:0:0:0:ffff:6368:1595
99.104.21.150 0:0:0:0:0:ffff:6368:1596
99.104.21.151 0:0:0:0:0:ffff:6368:1597
99.104.21.152 0:0:0:0:0:ffff:6368:1598
99.104.21.153 0:0:0:0:0:ffff:6368:1599
99.104.21.154 0:0:0:0:0:ffff:6368:159a
99.104.21.155 0:0:0:0:0:ffff:6368:159b
99.104.21.156 0:0:0:0:0:ffff:6368:159c
99.104.21.157 0:0:0:0:0:ffff:6368:159d
99.104.21.158 0:0:0:0:0:ffff:6368:159e
99.104.21.159 0:0:0:0:0:ffff:6368:159f
99.104.21.160 0:0:0:0:0:ffff:6368:15a0
99.104.21.161 0:0:0:0:0:ffff:6368:15a1
99.104.21.162 0:0:0:0:0:ffff:6368:15a2
99.104.21.163 0:0:0:0:0:ffff:6368:15a3
99.104.21.164 0:0:0:0:0:ffff:6368:15a4
99.104.21.165 0:0:0:0:0:ffff:6368:15a5
99.104.21.166 0:0:0:0:0:ffff:6368:15a6
99.104.21.167 0:0:0:0:0:ffff:6368:15a7
99.104.21.168 0:0:0:0:0:ffff:6368:15a8
99.104.21.169 0:0:0:0:0:ffff:6368:15a9
99.104.21.170 0:0:0:0:0:ffff:6368:15aa
99.104.21.171 0:0:0:0:0:ffff:6368:15ab
99.104.21.172 0:0:0:0:0:ffff:6368:15ac
99.104.21.173 0:0:0:0:0:ffff:6368:15ad
99.104.21.174 0:0:0:0:0:ffff:6368:15ae
99.104.21.175 0:0:0:0:0:ffff:6368:15af
99.104.21.176 0:0:0:0:0:ffff:6368:15b0
99.104.21.177 0:0:0:0:0:ffff:6368:15b1
99.104.21.178 0:0:0:0:0:ffff:6368:15b2
99.104.21.179 0:0:0:0:0:ffff:6368:15b3
99.104.21.180 0:0:0:0:0:ffff:6368:15b4


99.104.21.181 0:0:0:0:0:ffff:6368:15b5
99.104.21.182 0:0:0:0:0:ffff:6368:15b6
99.104.21.183 0:0:0:0:0:ffff:6368:15b7
99.104.21.184 0:0:0:0:0:ffff:6368:15b8
99.104.21.185 0:0:0:0:0:ffff:6368:15b9
99.104.21.186 0:0:0:0:0:ffff:6368:15ba
99.104.21.187 0:0:0:0:0:ffff:6368:15bb
99.104.21.188 0:0:0:0:0:ffff:6368:15bc
99.104.21.189 0:0:0:0:0:ffff:6368:15bd
99.104.21.190 0:0:0:0:0:ffff:6368:15be
99.104.21.191 0:0:0:0:0:ffff:6368:15bf
99.104.21.192 0:0:0:0:0:ffff:6368:15c0
99.104.21.193 0:0:0:0:0:ffff:6368:15c1
99.104.21.194 0:0:0:0:0:ffff:6368:15c2
99.104.21.195 0:0:0:0:0:ffff:6368:15c3
99.104.21.196 0:0:0:0:0:ffff:6368:15c4
99.104.21.197 0:0:0:0:0:ffff:6368:15c5
99.104.21.198 0:0:0:0:0:ffff:6368:15c6
99.104.21.199 0:0:0:0:0:ffff:6368:15c7
99.104.21.200 0:0:0:0:0:ffff:6368:15c8
99.104.21.201 0:0:0:0:0:ffff:6368:15c9
99.104.21.202 0:0:0:0:0:ffff:6368:15ca
99.104.21.203 0:0:0:0:0:ffff:6368:15cb
99.104.21.204 0:0:0:0:0:ffff:6368:15cc
99.104.21.205 0:0:0:0:0:ffff:6368:15cd
99.104.21.206 0:0:0:0:0:ffff:6368:15ce
99.104.21.207 0:0:0:0:0:ffff:6368:15cf
99.104.21.208 0:0:0:0:0:ffff:6368:15d0
99.104.21.209 0:0:0:0:0:ffff:6368:15d1
99.104.21.210 0:0:0:0:0:ffff:6368:15d2
99.104.21.211 0:0:0:0:0:ffff:6368:15d3
99.104.21.212 0:0:0:0:0:ffff:6368:15d4
99.104.21.213 0:0:0:0:0:ffff:6368:15d5
99.104.21.214 0:0:0:0:0:ffff:6368:15d6
99.104.21.215 0:0:0:0:0:ffff:6368:15d7
99.104.21.216 0:0:0:0:0:ffff:6368:15d8
99.104.21.217 0:0:0:0:0:ffff:6368:15d9
99.104.21.218 0:0:0:0:0:ffff:6368:15da
99.104.21.219 0:0:0:0:0:ffff:6368:15db
99.104.21.220 0:0:0:0:0:ffff:6368:15dc
99.104.21.221 0:0:0:0:0:ffff:6368:15dd
99.104.21.222 0:0:0:0:0:ffff:6368:15de
99.104.21.223 0:0:0:0:0:ffff:6368:15df
99.104.21.224 0:0:0:0:0:ffff:6368:15e0
99.104.21.225 0:0:0:0:0:ffff:6368:15e1
99.104.21.226 0:0:0:0:0:ffff:6368:15e2
99.104.21.227 0:0:0:0:0:ffff:6368:15e3
99.104.21.228 0:0:0:0:0:ffff:6368:15e4
99.104.21.229 0:0:0:0:0:ffff:6368:15e5
99.104.21.230 0:0:0:0:0:ffff:6368:15e6
99.104.21.231 0:0:0:0:0:ffff:6368:15e7
99.104.21.232 0:0:0:0:0:ffff:6368:15e8
99.104.21.233 0:0:0:0:0:ffff:6368:15e9
99.104.21.234 0:0:0:0:0:ffff:6368:15ea
99.104.21.235 0:0:0:0:0:ffff:6368:15eb
99.104.21.236 0:0:0:0:0:ffff:6368:15ec
99.104.21.237 0:0:0:0:0:ffff:6368:15ed
99.104.21.238 0:0:0:0:0:ffff:6368:15ee
99.104.21.239 0:0:0:0:0:ffff:6368:15ef
99.104.21.240 0:0:0:0:0:ffff:6368:15f0
99.104.21.241 0:0:0:0:0:ffff:6368:15f1
99.104.21.242 0:0:0:0:0:ffff:6368:15f2
99.104.21.243 0:0:0:0:0:ffff:6368:15f3
99.104.21.244 0:0:0:0:0:ffff:6368:15f4
99.104.21.245 0:0:0:0:0:ffff:6368:15f5
99.104.21.246 0:0:0:0:0:ffff:6368:15f6
99.104.21.247 0:0:0:0:0:ffff:6368:15f7
99.104.21.248 0:0:0:0:0:ffff:6368:15f8
99.104.21.249 0:0:0:0:0:ffff:6368:15f9
99.104.21.250 0:0:0:0:0:ffff:6368:15fa
99.104.21.251 0:0:0:0:0:ffff:6368:15fb
99.104.21.252 0:0:0:0:0:ffff:6368:15fc
99.104.21.253 0:0:0:0:0:ffff:6368:15fd
99.104.21.254 0:0:0:0:0:ffff:6368:15fe
99.104.21.255 0:0:0:0:0:ffff:6368:15ff


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.