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
59.255.21.1 0:0:0:0:0:ffff:3bff:1501
59.255.21.2 0:0:0:0:0:ffff:3bff:1502
59.255.21.3 0:0:0:0:0:ffff:3bff:1503
59.255.21.4 0:0:0:0:0:ffff:3bff:1504
59.255.21.5 0:0:0:0:0:ffff:3bff:1505
59.255.21.6 0:0:0:0:0:ffff:3bff:1506
59.255.21.7 0:0:0:0:0:ffff:3bff:1507
59.255.21.8 0:0:0:0:0:ffff:3bff:1508
59.255.21.9 0:0:0:0:0:ffff:3bff:1509
59.255.21.10 0:0:0:0:0:ffff:3bff:150a
59.255.21.11 0:0:0:0:0:ffff:3bff:150b
59.255.21.12 0:0:0:0:0:ffff:3bff:150c
59.255.21.13 0:0:0:0:0:ffff:3bff:150d
59.255.21.14 0:0:0:0:0:ffff:3bff:150e
59.255.21.15 0:0:0:0:0:ffff:3bff:150f
59.255.21.16 0:0:0:0:0:ffff:3bff:1510
59.255.21.17 0:0:0:0:0:ffff:3bff:1511
59.255.21.18 0:0:0:0:0:ffff:3bff:1512
59.255.21.19 0:0:0:0:0:ffff:3bff:1513
59.255.21.20 0:0:0:0:0:ffff:3bff:1514
59.255.21.21 0:0:0:0:0:ffff:3bff:1515
59.255.21.22 0:0:0:0:0:ffff:3bff:1516
59.255.21.23 0:0:0:0:0:ffff:3bff:1517
59.255.21.24 0:0:0:0:0:ffff:3bff:1518
59.255.21.25 0:0:0:0:0:ffff:3bff:1519
59.255.21.26 0:0:0:0:0:ffff:3bff:151a
59.255.21.27 0:0:0:0:0:ffff:3bff:151b
59.255.21.28 0:0:0:0:0:ffff:3bff:151c
59.255.21.29 0:0:0:0:0:ffff:3bff:151d
59.255.21.30 0:0:0:0:0:ffff:3bff:151e
59.255.21.31 0:0:0:0:0:ffff:3bff:151f
59.255.21.32 0:0:0:0:0:ffff:3bff:1520
59.255.21.33 0:0:0:0:0:ffff:3bff:1521
59.255.21.34 0:0:0:0:0:ffff:3bff:1522
59.255.21.35 0:0:0:0:0:ffff:3bff:1523
59.255.21.36 0:0:0:0:0:ffff:3bff:1524
59.255.21.37 0:0:0:0:0:ffff:3bff:1525
59.255.21.38 0:0:0:0:0:ffff:3bff:1526
59.255.21.39 0:0:0:0:0:ffff:3bff:1527
59.255.21.40 0:0:0:0:0:ffff:3bff:1528
59.255.21.41 0:0:0:0:0:ffff:3bff:1529
59.255.21.42 0:0:0:0:0:ffff:3bff:152a
59.255.21.43 0:0:0:0:0:ffff:3bff:152b
59.255.21.44 0:0:0:0:0:ffff:3bff:152c
59.255.21.45 0:0:0:0:0:ffff:3bff:152d
59.255.21.46 0:0:0:0:0:ffff:3bff:152e
59.255.21.47 0:0:0:0:0:ffff:3bff:152f
59.255.21.48 0:0:0:0:0:ffff:3bff:1530
59.255.21.49 0:0:0:0:0:ffff:3bff:1531
59.255.21.50 0:0:0:0:0:ffff:3bff:1532
59.255.21.51 0:0:0:0:0:ffff:3bff:1533
59.255.21.52 0:0:0:0:0:ffff:3bff:1534
59.255.21.53 0:0:0:0:0:ffff:3bff:1535
59.255.21.54 0:0:0:0:0:ffff:3bff:1536
59.255.21.55 0:0:0:0:0:ffff:3bff:1537
59.255.21.56 0:0:0:0:0:ffff:3bff:1538
59.255.21.57 0:0:0:0:0:ffff:3bff:1539
59.255.21.58 0:0:0:0:0:ffff:3bff:153a
59.255.21.59 0:0:0:0:0:ffff:3bff:153b
59.255.21.60 0:0:0:0:0:ffff:3bff:153c


59.255.21.61 0:0:0:0:0:ffff:3bff:153d
59.255.21.62 0:0:0:0:0:ffff:3bff:153e
59.255.21.63 0:0:0:0:0:ffff:3bff:153f
59.255.21.64 0:0:0:0:0:ffff:3bff:1540
59.255.21.65 0:0:0:0:0:ffff:3bff:1541
59.255.21.66 0:0:0:0:0:ffff:3bff:1542
59.255.21.67 0:0:0:0:0:ffff:3bff:1543
59.255.21.68 0:0:0:0:0:ffff:3bff:1544
59.255.21.69 0:0:0:0:0:ffff:3bff:1545
59.255.21.70 0:0:0:0:0:ffff:3bff:1546
59.255.21.71 0:0:0:0:0:ffff:3bff:1547
59.255.21.72 0:0:0:0:0:ffff:3bff:1548
59.255.21.73 0:0:0:0:0:ffff:3bff:1549
59.255.21.74 0:0:0:0:0:ffff:3bff:154a
59.255.21.75 0:0:0:0:0:ffff:3bff:154b
59.255.21.76 0:0:0:0:0:ffff:3bff:154c
59.255.21.77 0:0:0:0:0:ffff:3bff:154d
59.255.21.78 0:0:0:0:0:ffff:3bff:154e
59.255.21.79 0:0:0:0:0:ffff:3bff:154f
59.255.21.80 0:0:0:0:0:ffff:3bff:1550
59.255.21.81 0:0:0:0:0:ffff:3bff:1551
59.255.21.82 0:0:0:0:0:ffff:3bff:1552
59.255.21.83 0:0:0:0:0:ffff:3bff:1553
59.255.21.84 0:0:0:0:0:ffff:3bff:1554
59.255.21.85 0:0:0:0:0:ffff:3bff:1555
59.255.21.86 0:0:0:0:0:ffff:3bff:1556
59.255.21.87 0:0:0:0:0:ffff:3bff:1557
59.255.21.88 0:0:0:0:0:ffff:3bff:1558
59.255.21.89 0:0:0:0:0:ffff:3bff:1559
59.255.21.90 0:0:0:0:0:ffff:3bff:155a
59.255.21.91 0:0:0:0:0:ffff:3bff:155b
59.255.21.92 0:0:0:0:0:ffff:3bff:155c
59.255.21.93 0:0:0:0:0:ffff:3bff:155d
59.255.21.94 0:0:0:0:0:ffff:3bff:155e
59.255.21.95 0:0:0:0:0:ffff:3bff:155f
59.255.21.96 0:0:0:0:0:ffff:3bff:1560
59.255.21.97 0:0:0:0:0:ffff:3bff:1561
59.255.21.98 0:0:0:0:0:ffff:3bff:1562
59.255.21.99 0:0:0:0:0:ffff:3bff:1563
59.255.21.100 0:0:0:0:0:ffff:3bff:1564
59.255.21.101 0:0:0:0:0:ffff:3bff:1565
59.255.21.102 0:0:0:0:0:ffff:3bff:1566
59.255.21.103 0:0:0:0:0:ffff:3bff:1567
59.255.21.104 0:0:0:0:0:ffff:3bff:1568
59.255.21.105 0:0:0:0:0:ffff:3bff:1569
59.255.21.106 0:0:0:0:0:ffff:3bff:156a
59.255.21.107 0:0:0:0:0:ffff:3bff:156b
59.255.21.108 0:0:0:0:0:ffff:3bff:156c
59.255.21.109 0:0:0:0:0:ffff:3bff:156d
59.255.21.110 0:0:0:0:0:ffff:3bff:156e
59.255.21.111 0:0:0:0:0:ffff:3bff:156f
59.255.21.112 0:0:0:0:0:ffff:3bff:1570
59.255.21.113 0:0:0:0:0:ffff:3bff:1571
59.255.21.114 0:0:0:0:0:ffff:3bff:1572
59.255.21.115 0:0:0:0:0:ffff:3bff:1573
59.255.21.116 0:0:0:0:0:ffff:3bff:1574
59.255.21.117 0:0:0:0:0:ffff:3bff:1575
59.255.21.118 0:0:0:0:0:ffff:3bff:1576
59.255.21.119 0:0:0:0:0:ffff:3bff:1577
59.255.21.120 0:0:0:0:0:ffff:3bff:1578


59.255.21.121 0:0:0:0:0:ffff:3bff:1579
59.255.21.122 0:0:0:0:0:ffff:3bff:157a
59.255.21.123 0:0:0:0:0:ffff:3bff:157b
59.255.21.124 0:0:0:0:0:ffff:3bff:157c
59.255.21.125 0:0:0:0:0:ffff:3bff:157d
59.255.21.126 0:0:0:0:0:ffff:3bff:157e
59.255.21.127 0:0:0:0:0:ffff:3bff:157f
59.255.21.128 0:0:0:0:0:ffff:3bff:1580
59.255.21.129 0:0:0:0:0:ffff:3bff:1581
59.255.21.130 0:0:0:0:0:ffff:3bff:1582
59.255.21.131 0:0:0:0:0:ffff:3bff:1583
59.255.21.132 0:0:0:0:0:ffff:3bff:1584
59.255.21.133 0:0:0:0:0:ffff:3bff:1585
59.255.21.134 0:0:0:0:0:ffff:3bff:1586
59.255.21.135 0:0:0:0:0:ffff:3bff:1587
59.255.21.136 0:0:0:0:0:ffff:3bff:1588
59.255.21.137 0:0:0:0:0:ffff:3bff:1589
59.255.21.138 0:0:0:0:0:ffff:3bff:158a
59.255.21.139 0:0:0:0:0:ffff:3bff:158b
59.255.21.140 0:0:0:0:0:ffff:3bff:158c
59.255.21.141 0:0:0:0:0:ffff:3bff:158d
59.255.21.142 0:0:0:0:0:ffff:3bff:158e
59.255.21.143 0:0:0:0:0:ffff:3bff:158f
59.255.21.144 0:0:0:0:0:ffff:3bff:1590
59.255.21.145 0:0:0:0:0:ffff:3bff:1591
59.255.21.146 0:0:0:0:0:ffff:3bff:1592
59.255.21.147 0:0:0:0:0:ffff:3bff:1593
59.255.21.148 0:0:0:0:0:ffff:3bff:1594
59.255.21.149 0:0:0:0:0:ffff:3bff:1595
59.255.21.150 0:0:0:0:0:ffff:3bff:1596
59.255.21.151 0:0:0:0:0:ffff:3bff:1597
59.255.21.152 0:0:0:0:0:ffff:3bff:1598
59.255.21.153 0:0:0:0:0:ffff:3bff:1599
59.255.21.154 0:0:0:0:0:ffff:3bff:159a
59.255.21.155 0:0:0:0:0:ffff:3bff:159b
59.255.21.156 0:0:0:0:0:ffff:3bff:159c
59.255.21.157 0:0:0:0:0:ffff:3bff:159d
59.255.21.158 0:0:0:0:0:ffff:3bff:159e
59.255.21.159 0:0:0:0:0:ffff:3bff:159f
59.255.21.160 0:0:0:0:0:ffff:3bff:15a0
59.255.21.161 0:0:0:0:0:ffff:3bff:15a1
59.255.21.162 0:0:0:0:0:ffff:3bff:15a2
59.255.21.163 0:0:0:0:0:ffff:3bff:15a3
59.255.21.164 0:0:0:0:0:ffff:3bff:15a4
59.255.21.165 0:0:0:0:0:ffff:3bff:15a5
59.255.21.166 0:0:0:0:0:ffff:3bff:15a6
59.255.21.167 0:0:0:0:0:ffff:3bff:15a7
59.255.21.168 0:0:0:0:0:ffff:3bff:15a8
59.255.21.169 0:0:0:0:0:ffff:3bff:15a9
59.255.21.170 0:0:0:0:0:ffff:3bff:15aa
59.255.21.171 0:0:0:0:0:ffff:3bff:15ab
59.255.21.172 0:0:0:0:0:ffff:3bff:15ac
59.255.21.173 0:0:0:0:0:ffff:3bff:15ad
59.255.21.174 0:0:0:0:0:ffff:3bff:15ae
59.255.21.175 0:0:0:0:0:ffff:3bff:15af
59.255.21.176 0:0:0:0:0:ffff:3bff:15b0
59.255.21.177 0:0:0:0:0:ffff:3bff:15b1
59.255.21.178 0:0:0:0:0:ffff:3bff:15b2
59.255.21.179 0:0:0:0:0:ffff:3bff:15b3
59.255.21.180 0:0:0:0:0:ffff:3bff:15b4


59.255.21.181 0:0:0:0:0:ffff:3bff:15b5
59.255.21.182 0:0:0:0:0:ffff:3bff:15b6
59.255.21.183 0:0:0:0:0:ffff:3bff:15b7
59.255.21.184 0:0:0:0:0:ffff:3bff:15b8
59.255.21.185 0:0:0:0:0:ffff:3bff:15b9
59.255.21.186 0:0:0:0:0:ffff:3bff:15ba
59.255.21.187 0:0:0:0:0:ffff:3bff:15bb
59.255.21.188 0:0:0:0:0:ffff:3bff:15bc
59.255.21.189 0:0:0:0:0:ffff:3bff:15bd
59.255.21.190 0:0:0:0:0:ffff:3bff:15be
59.255.21.191 0:0:0:0:0:ffff:3bff:15bf
59.255.21.192 0:0:0:0:0:ffff:3bff:15c0
59.255.21.193 0:0:0:0:0:ffff:3bff:15c1
59.255.21.194 0:0:0:0:0:ffff:3bff:15c2
59.255.21.195 0:0:0:0:0:ffff:3bff:15c3
59.255.21.196 0:0:0:0:0:ffff:3bff:15c4
59.255.21.197 0:0:0:0:0:ffff:3bff:15c5
59.255.21.198 0:0:0:0:0:ffff:3bff:15c6
59.255.21.199 0:0:0:0:0:ffff:3bff:15c7
59.255.21.200 0:0:0:0:0:ffff:3bff:15c8
59.255.21.201 0:0:0:0:0:ffff:3bff:15c9
59.255.21.202 0:0:0:0:0:ffff:3bff:15ca
59.255.21.203 0:0:0:0:0:ffff:3bff:15cb
59.255.21.204 0:0:0:0:0:ffff:3bff:15cc
59.255.21.205 0:0:0:0:0:ffff:3bff:15cd
59.255.21.206 0:0:0:0:0:ffff:3bff:15ce
59.255.21.207 0:0:0:0:0:ffff:3bff:15cf
59.255.21.208 0:0:0:0:0:ffff:3bff:15d0
59.255.21.209 0:0:0:0:0:ffff:3bff:15d1
59.255.21.210 0:0:0:0:0:ffff:3bff:15d2
59.255.21.211 0:0:0:0:0:ffff:3bff:15d3
59.255.21.212 0:0:0:0:0:ffff:3bff:15d4
59.255.21.213 0:0:0:0:0:ffff:3bff:15d5
59.255.21.214 0:0:0:0:0:ffff:3bff:15d6
59.255.21.215 0:0:0:0:0:ffff:3bff:15d7
59.255.21.216 0:0:0:0:0:ffff:3bff:15d8
59.255.21.217 0:0:0:0:0:ffff:3bff:15d9
59.255.21.218 0:0:0:0:0:ffff:3bff:15da
59.255.21.219 0:0:0:0:0:ffff:3bff:15db
59.255.21.220 0:0:0:0:0:ffff:3bff:15dc
59.255.21.221 0:0:0:0:0:ffff:3bff:15dd
59.255.21.222 0:0:0:0:0:ffff:3bff:15de
59.255.21.223 0:0:0:0:0:ffff:3bff:15df
59.255.21.224 0:0:0:0:0:ffff:3bff:15e0
59.255.21.225 0:0:0:0:0:ffff:3bff:15e1
59.255.21.226 0:0:0:0:0:ffff:3bff:15e2
59.255.21.227 0:0:0:0:0:ffff:3bff:15e3
59.255.21.228 0:0:0:0:0:ffff:3bff:15e4
59.255.21.229 0:0:0:0:0:ffff:3bff:15e5
59.255.21.230 0:0:0:0:0:ffff:3bff:15e6
59.255.21.231 0:0:0:0:0:ffff:3bff:15e7
59.255.21.232 0:0:0:0:0:ffff:3bff:15e8
59.255.21.233 0:0:0:0:0:ffff:3bff:15e9
59.255.21.234 0:0:0:0:0:ffff:3bff:15ea
59.255.21.235 0:0:0:0:0:ffff:3bff:15eb
59.255.21.236 0:0:0:0:0:ffff:3bff:15ec
59.255.21.237 0:0:0:0:0:ffff:3bff:15ed
59.255.21.238 0:0:0:0:0:ffff:3bff:15ee
59.255.21.239 0:0:0:0:0:ffff:3bff:15ef
59.255.21.240 0:0:0:0:0:ffff:3bff:15f0
59.255.21.241 0:0:0:0:0:ffff:3bff:15f1
59.255.21.242 0:0:0:0:0:ffff:3bff:15f2
59.255.21.243 0:0:0:0:0:ffff:3bff:15f3
59.255.21.244 0:0:0:0:0:ffff:3bff:15f4
59.255.21.245 0:0:0:0:0:ffff:3bff:15f5
59.255.21.246 0:0:0:0:0:ffff:3bff:15f6
59.255.21.247 0:0:0:0:0:ffff:3bff:15f7
59.255.21.248 0:0:0:0:0:ffff:3bff:15f8
59.255.21.249 0:0:0:0:0:ffff:3bff:15f9
59.255.21.250 0:0:0:0:0:ffff:3bff:15fa
59.255.21.251 0:0:0:0:0:ffff:3bff:15fb
59.255.21.252 0:0:0:0:0:ffff:3bff:15fc
59.255.21.253 0:0:0:0:0:ffff:3bff:15fd
59.255.21.254 0:0:0:0:0:ffff:3bff:15fe
59.255.21.255 0:0:0:0:0:ffff:3bff: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.