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
45.39.21.1 0:0:0:0:0:ffff:2d27:1501
45.39.21.2 0:0:0:0:0:ffff:2d27:1502
45.39.21.3 0:0:0:0:0:ffff:2d27:1503
45.39.21.4 0:0:0:0:0:ffff:2d27:1504
45.39.21.5 0:0:0:0:0:ffff:2d27:1505
45.39.21.6 0:0:0:0:0:ffff:2d27:1506
45.39.21.7 0:0:0:0:0:ffff:2d27:1507
45.39.21.8 0:0:0:0:0:ffff:2d27:1508
45.39.21.9 0:0:0:0:0:ffff:2d27:1509
45.39.21.10 0:0:0:0:0:ffff:2d27:150a
45.39.21.11 0:0:0:0:0:ffff:2d27:150b
45.39.21.12 0:0:0:0:0:ffff:2d27:150c
45.39.21.13 0:0:0:0:0:ffff:2d27:150d
45.39.21.14 0:0:0:0:0:ffff:2d27:150e
45.39.21.15 0:0:0:0:0:ffff:2d27:150f
45.39.21.16 0:0:0:0:0:ffff:2d27:1510
45.39.21.17 0:0:0:0:0:ffff:2d27:1511
45.39.21.18 0:0:0:0:0:ffff:2d27:1512
45.39.21.19 0:0:0:0:0:ffff:2d27:1513
45.39.21.20 0:0:0:0:0:ffff:2d27:1514
45.39.21.21 0:0:0:0:0:ffff:2d27:1515
45.39.21.22 0:0:0:0:0:ffff:2d27:1516
45.39.21.23 0:0:0:0:0:ffff:2d27:1517
45.39.21.24 0:0:0:0:0:ffff:2d27:1518
45.39.21.25 0:0:0:0:0:ffff:2d27:1519
45.39.21.26 0:0:0:0:0:ffff:2d27:151a
45.39.21.27 0:0:0:0:0:ffff:2d27:151b
45.39.21.28 0:0:0:0:0:ffff:2d27:151c
45.39.21.29 0:0:0:0:0:ffff:2d27:151d
45.39.21.30 0:0:0:0:0:ffff:2d27:151e
45.39.21.31 0:0:0:0:0:ffff:2d27:151f
45.39.21.32 0:0:0:0:0:ffff:2d27:1520
45.39.21.33 0:0:0:0:0:ffff:2d27:1521
45.39.21.34 0:0:0:0:0:ffff:2d27:1522
45.39.21.35 0:0:0:0:0:ffff:2d27:1523
45.39.21.36 0:0:0:0:0:ffff:2d27:1524
45.39.21.37 0:0:0:0:0:ffff:2d27:1525
45.39.21.38 0:0:0:0:0:ffff:2d27:1526
45.39.21.39 0:0:0:0:0:ffff:2d27:1527
45.39.21.40 0:0:0:0:0:ffff:2d27:1528
45.39.21.41 0:0:0:0:0:ffff:2d27:1529
45.39.21.42 0:0:0:0:0:ffff:2d27:152a
45.39.21.43 0:0:0:0:0:ffff:2d27:152b
45.39.21.44 0:0:0:0:0:ffff:2d27:152c
45.39.21.45 0:0:0:0:0:ffff:2d27:152d
45.39.21.46 0:0:0:0:0:ffff:2d27:152e
45.39.21.47 0:0:0:0:0:ffff:2d27:152f
45.39.21.48 0:0:0:0:0:ffff:2d27:1530
45.39.21.49 0:0:0:0:0:ffff:2d27:1531
45.39.21.50 0:0:0:0:0:ffff:2d27:1532
45.39.21.51 0:0:0:0:0:ffff:2d27:1533
45.39.21.52 0:0:0:0:0:ffff:2d27:1534
45.39.21.53 0:0:0:0:0:ffff:2d27:1535
45.39.21.54 0:0:0:0:0:ffff:2d27:1536
45.39.21.55 0:0:0:0:0:ffff:2d27:1537
45.39.21.56 0:0:0:0:0:ffff:2d27:1538
45.39.21.57 0:0:0:0:0:ffff:2d27:1539
45.39.21.58 0:0:0:0:0:ffff:2d27:153a
45.39.21.59 0:0:0:0:0:ffff:2d27:153b
45.39.21.60 0:0:0:0:0:ffff:2d27:153c


45.39.21.61 0:0:0:0:0:ffff:2d27:153d
45.39.21.62 0:0:0:0:0:ffff:2d27:153e
45.39.21.63 0:0:0:0:0:ffff:2d27:153f
45.39.21.64 0:0:0:0:0:ffff:2d27:1540
45.39.21.65 0:0:0:0:0:ffff:2d27:1541
45.39.21.66 0:0:0:0:0:ffff:2d27:1542
45.39.21.67 0:0:0:0:0:ffff:2d27:1543
45.39.21.68 0:0:0:0:0:ffff:2d27:1544
45.39.21.69 0:0:0:0:0:ffff:2d27:1545
45.39.21.70 0:0:0:0:0:ffff:2d27:1546
45.39.21.71 0:0:0:0:0:ffff:2d27:1547
45.39.21.72 0:0:0:0:0:ffff:2d27:1548
45.39.21.73 0:0:0:0:0:ffff:2d27:1549
45.39.21.74 0:0:0:0:0:ffff:2d27:154a
45.39.21.75 0:0:0:0:0:ffff:2d27:154b
45.39.21.76 0:0:0:0:0:ffff:2d27:154c
45.39.21.77 0:0:0:0:0:ffff:2d27:154d
45.39.21.78 0:0:0:0:0:ffff:2d27:154e
45.39.21.79 0:0:0:0:0:ffff:2d27:154f
45.39.21.80 0:0:0:0:0:ffff:2d27:1550
45.39.21.81 0:0:0:0:0:ffff:2d27:1551
45.39.21.82 0:0:0:0:0:ffff:2d27:1552
45.39.21.83 0:0:0:0:0:ffff:2d27:1553
45.39.21.84 0:0:0:0:0:ffff:2d27:1554
45.39.21.85 0:0:0:0:0:ffff:2d27:1555
45.39.21.86 0:0:0:0:0:ffff:2d27:1556
45.39.21.87 0:0:0:0:0:ffff:2d27:1557
45.39.21.88 0:0:0:0:0:ffff:2d27:1558
45.39.21.89 0:0:0:0:0:ffff:2d27:1559
45.39.21.90 0:0:0:0:0:ffff:2d27:155a
45.39.21.91 0:0:0:0:0:ffff:2d27:155b
45.39.21.92 0:0:0:0:0:ffff:2d27:155c
45.39.21.93 0:0:0:0:0:ffff:2d27:155d
45.39.21.94 0:0:0:0:0:ffff:2d27:155e
45.39.21.95 0:0:0:0:0:ffff:2d27:155f
45.39.21.96 0:0:0:0:0:ffff:2d27:1560
45.39.21.97 0:0:0:0:0:ffff:2d27:1561
45.39.21.98 0:0:0:0:0:ffff:2d27:1562
45.39.21.99 0:0:0:0:0:ffff:2d27:1563
45.39.21.100 0:0:0:0:0:ffff:2d27:1564
45.39.21.101 0:0:0:0:0:ffff:2d27:1565
45.39.21.102 0:0:0:0:0:ffff:2d27:1566
45.39.21.103 0:0:0:0:0:ffff:2d27:1567
45.39.21.104 0:0:0:0:0:ffff:2d27:1568
45.39.21.105 0:0:0:0:0:ffff:2d27:1569
45.39.21.106 0:0:0:0:0:ffff:2d27:156a
45.39.21.107 0:0:0:0:0:ffff:2d27:156b
45.39.21.108 0:0:0:0:0:ffff:2d27:156c
45.39.21.109 0:0:0:0:0:ffff:2d27:156d
45.39.21.110 0:0:0:0:0:ffff:2d27:156e
45.39.21.111 0:0:0:0:0:ffff:2d27:156f
45.39.21.112 0:0:0:0:0:ffff:2d27:1570
45.39.21.113 0:0:0:0:0:ffff:2d27:1571
45.39.21.114 0:0:0:0:0:ffff:2d27:1572
45.39.21.115 0:0:0:0:0:ffff:2d27:1573
45.39.21.116 0:0:0:0:0:ffff:2d27:1574
45.39.21.117 0:0:0:0:0:ffff:2d27:1575
45.39.21.118 0:0:0:0:0:ffff:2d27:1576
45.39.21.119 0:0:0:0:0:ffff:2d27:1577
45.39.21.120 0:0:0:0:0:ffff:2d27:1578


45.39.21.121 0:0:0:0:0:ffff:2d27:1579
45.39.21.122 0:0:0:0:0:ffff:2d27:157a
45.39.21.123 0:0:0:0:0:ffff:2d27:157b
45.39.21.124 0:0:0:0:0:ffff:2d27:157c
45.39.21.125 0:0:0:0:0:ffff:2d27:157d
45.39.21.126 0:0:0:0:0:ffff:2d27:157e
45.39.21.127 0:0:0:0:0:ffff:2d27:157f
45.39.21.128 0:0:0:0:0:ffff:2d27:1580
45.39.21.129 0:0:0:0:0:ffff:2d27:1581
45.39.21.130 0:0:0:0:0:ffff:2d27:1582
45.39.21.131 0:0:0:0:0:ffff:2d27:1583
45.39.21.132 0:0:0:0:0:ffff:2d27:1584
45.39.21.133 0:0:0:0:0:ffff:2d27:1585
45.39.21.134 0:0:0:0:0:ffff:2d27:1586
45.39.21.135 0:0:0:0:0:ffff:2d27:1587
45.39.21.136 0:0:0:0:0:ffff:2d27:1588
45.39.21.137 0:0:0:0:0:ffff:2d27:1589
45.39.21.138 0:0:0:0:0:ffff:2d27:158a
45.39.21.139 0:0:0:0:0:ffff:2d27:158b
45.39.21.140 0:0:0:0:0:ffff:2d27:158c
45.39.21.141 0:0:0:0:0:ffff:2d27:158d
45.39.21.142 0:0:0:0:0:ffff:2d27:158e
45.39.21.143 0:0:0:0:0:ffff:2d27:158f
45.39.21.144 0:0:0:0:0:ffff:2d27:1590
45.39.21.145 0:0:0:0:0:ffff:2d27:1591
45.39.21.146 0:0:0:0:0:ffff:2d27:1592
45.39.21.147 0:0:0:0:0:ffff:2d27:1593
45.39.21.148 0:0:0:0:0:ffff:2d27:1594
45.39.21.149 0:0:0:0:0:ffff:2d27:1595
45.39.21.150 0:0:0:0:0:ffff:2d27:1596
45.39.21.151 0:0:0:0:0:ffff:2d27:1597
45.39.21.152 0:0:0:0:0:ffff:2d27:1598
45.39.21.153 0:0:0:0:0:ffff:2d27:1599
45.39.21.154 0:0:0:0:0:ffff:2d27:159a
45.39.21.155 0:0:0:0:0:ffff:2d27:159b
45.39.21.156 0:0:0:0:0:ffff:2d27:159c
45.39.21.157 0:0:0:0:0:ffff:2d27:159d
45.39.21.158 0:0:0:0:0:ffff:2d27:159e
45.39.21.159 0:0:0:0:0:ffff:2d27:159f
45.39.21.160 0:0:0:0:0:ffff:2d27:15a0
45.39.21.161 0:0:0:0:0:ffff:2d27:15a1
45.39.21.162 0:0:0:0:0:ffff:2d27:15a2
45.39.21.163 0:0:0:0:0:ffff:2d27:15a3
45.39.21.164 0:0:0:0:0:ffff:2d27:15a4
45.39.21.165 0:0:0:0:0:ffff:2d27:15a5
45.39.21.166 0:0:0:0:0:ffff:2d27:15a6
45.39.21.167 0:0:0:0:0:ffff:2d27:15a7
45.39.21.168 0:0:0:0:0:ffff:2d27:15a8
45.39.21.169 0:0:0:0:0:ffff:2d27:15a9
45.39.21.170 0:0:0:0:0:ffff:2d27:15aa
45.39.21.171 0:0:0:0:0:ffff:2d27:15ab
45.39.21.172 0:0:0:0:0:ffff:2d27:15ac
45.39.21.173 0:0:0:0:0:ffff:2d27:15ad
45.39.21.174 0:0:0:0:0:ffff:2d27:15ae
45.39.21.175 0:0:0:0:0:ffff:2d27:15af
45.39.21.176 0:0:0:0:0:ffff:2d27:15b0
45.39.21.177 0:0:0:0:0:ffff:2d27:15b1
45.39.21.178 0:0:0:0:0:ffff:2d27:15b2
45.39.21.179 0:0:0:0:0:ffff:2d27:15b3
45.39.21.180 0:0:0:0:0:ffff:2d27:15b4


45.39.21.181 0:0:0:0:0:ffff:2d27:15b5
45.39.21.182 0:0:0:0:0:ffff:2d27:15b6
45.39.21.183 0:0:0:0:0:ffff:2d27:15b7
45.39.21.184 0:0:0:0:0:ffff:2d27:15b8
45.39.21.185 0:0:0:0:0:ffff:2d27:15b9
45.39.21.186 0:0:0:0:0:ffff:2d27:15ba
45.39.21.187 0:0:0:0:0:ffff:2d27:15bb
45.39.21.188 0:0:0:0:0:ffff:2d27:15bc
45.39.21.189 0:0:0:0:0:ffff:2d27:15bd
45.39.21.190 0:0:0:0:0:ffff:2d27:15be
45.39.21.191 0:0:0:0:0:ffff:2d27:15bf
45.39.21.192 0:0:0:0:0:ffff:2d27:15c0
45.39.21.193 0:0:0:0:0:ffff:2d27:15c1
45.39.21.194 0:0:0:0:0:ffff:2d27:15c2
45.39.21.195 0:0:0:0:0:ffff:2d27:15c3
45.39.21.196 0:0:0:0:0:ffff:2d27:15c4
45.39.21.197 0:0:0:0:0:ffff:2d27:15c5
45.39.21.198 0:0:0:0:0:ffff:2d27:15c6
45.39.21.199 0:0:0:0:0:ffff:2d27:15c7
45.39.21.200 0:0:0:0:0:ffff:2d27:15c8
45.39.21.201 0:0:0:0:0:ffff:2d27:15c9
45.39.21.202 0:0:0:0:0:ffff:2d27:15ca
45.39.21.203 0:0:0:0:0:ffff:2d27:15cb
45.39.21.204 0:0:0:0:0:ffff:2d27:15cc
45.39.21.205 0:0:0:0:0:ffff:2d27:15cd
45.39.21.206 0:0:0:0:0:ffff:2d27:15ce
45.39.21.207 0:0:0:0:0:ffff:2d27:15cf
45.39.21.208 0:0:0:0:0:ffff:2d27:15d0
45.39.21.209 0:0:0:0:0:ffff:2d27:15d1
45.39.21.210 0:0:0:0:0:ffff:2d27:15d2
45.39.21.211 0:0:0:0:0:ffff:2d27:15d3
45.39.21.212 0:0:0:0:0:ffff:2d27:15d4
45.39.21.213 0:0:0:0:0:ffff:2d27:15d5
45.39.21.214 0:0:0:0:0:ffff:2d27:15d6
45.39.21.215 0:0:0:0:0:ffff:2d27:15d7
45.39.21.216 0:0:0:0:0:ffff:2d27:15d8
45.39.21.217 0:0:0:0:0:ffff:2d27:15d9
45.39.21.218 0:0:0:0:0:ffff:2d27:15da
45.39.21.219 0:0:0:0:0:ffff:2d27:15db
45.39.21.220 0:0:0:0:0:ffff:2d27:15dc
45.39.21.221 0:0:0:0:0:ffff:2d27:15dd
45.39.21.222 0:0:0:0:0:ffff:2d27:15de
45.39.21.223 0:0:0:0:0:ffff:2d27:15df
45.39.21.224 0:0:0:0:0:ffff:2d27:15e0
45.39.21.225 0:0:0:0:0:ffff:2d27:15e1
45.39.21.226 0:0:0:0:0:ffff:2d27:15e2
45.39.21.227 0:0:0:0:0:ffff:2d27:15e3
45.39.21.228 0:0:0:0:0:ffff:2d27:15e4
45.39.21.229 0:0:0:0:0:ffff:2d27:15e5
45.39.21.230 0:0:0:0:0:ffff:2d27:15e6
45.39.21.231 0:0:0:0:0:ffff:2d27:15e7
45.39.21.232 0:0:0:0:0:ffff:2d27:15e8
45.39.21.233 0:0:0:0:0:ffff:2d27:15e9
45.39.21.234 0:0:0:0:0:ffff:2d27:15ea
45.39.21.235 0:0:0:0:0:ffff:2d27:15eb
45.39.21.236 0:0:0:0:0:ffff:2d27:15ec
45.39.21.237 0:0:0:0:0:ffff:2d27:15ed
45.39.21.238 0:0:0:0:0:ffff:2d27:15ee
45.39.21.239 0:0:0:0:0:ffff:2d27:15ef
45.39.21.240 0:0:0:0:0:ffff:2d27:15f0
45.39.21.241 0:0:0:0:0:ffff:2d27:15f1
45.39.21.242 0:0:0:0:0:ffff:2d27:15f2
45.39.21.243 0:0:0:0:0:ffff:2d27:15f3
45.39.21.244 0:0:0:0:0:ffff:2d27:15f4
45.39.21.245 0:0:0:0:0:ffff:2d27:15f5
45.39.21.246 0:0:0:0:0:ffff:2d27:15f6
45.39.21.247 0:0:0:0:0:ffff:2d27:15f7
45.39.21.248 0:0:0:0:0:ffff:2d27:15f8
45.39.21.249 0:0:0:0:0:ffff:2d27:15f9
45.39.21.250 0:0:0:0:0:ffff:2d27:15fa
45.39.21.251 0:0:0:0:0:ffff:2d27:15fb
45.39.21.252 0:0:0:0:0:ffff:2d27:15fc
45.39.21.253 0:0:0:0:0:ffff:2d27:15fd
45.39.21.254 0:0:0:0:0:ffff:2d27:15fe
45.39.21.255 0:0:0:0:0:ffff:2d27:15ff


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.