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
11.131.21.1 0:0:0:0:0:ffff:b83:1501
11.131.21.2 0:0:0:0:0:ffff:b83:1502
11.131.21.3 0:0:0:0:0:ffff:b83:1503
11.131.21.4 0:0:0:0:0:ffff:b83:1504
11.131.21.5 0:0:0:0:0:ffff:b83:1505
11.131.21.6 0:0:0:0:0:ffff:b83:1506
11.131.21.7 0:0:0:0:0:ffff:b83:1507
11.131.21.8 0:0:0:0:0:ffff:b83:1508
11.131.21.9 0:0:0:0:0:ffff:b83:1509
11.131.21.10 0:0:0:0:0:ffff:b83:150a
11.131.21.11 0:0:0:0:0:ffff:b83:150b
11.131.21.12 0:0:0:0:0:ffff:b83:150c
11.131.21.13 0:0:0:0:0:ffff:b83:150d
11.131.21.14 0:0:0:0:0:ffff:b83:150e
11.131.21.15 0:0:0:0:0:ffff:b83:150f
11.131.21.16 0:0:0:0:0:ffff:b83:1510
11.131.21.17 0:0:0:0:0:ffff:b83:1511
11.131.21.18 0:0:0:0:0:ffff:b83:1512
11.131.21.19 0:0:0:0:0:ffff:b83:1513
11.131.21.20 0:0:0:0:0:ffff:b83:1514
11.131.21.21 0:0:0:0:0:ffff:b83:1515
11.131.21.22 0:0:0:0:0:ffff:b83:1516
11.131.21.23 0:0:0:0:0:ffff:b83:1517
11.131.21.24 0:0:0:0:0:ffff:b83:1518
11.131.21.25 0:0:0:0:0:ffff:b83:1519
11.131.21.26 0:0:0:0:0:ffff:b83:151a
11.131.21.27 0:0:0:0:0:ffff:b83:151b
11.131.21.28 0:0:0:0:0:ffff:b83:151c
11.131.21.29 0:0:0:0:0:ffff:b83:151d
11.131.21.30 0:0:0:0:0:ffff:b83:151e
11.131.21.31 0:0:0:0:0:ffff:b83:151f
11.131.21.32 0:0:0:0:0:ffff:b83:1520
11.131.21.33 0:0:0:0:0:ffff:b83:1521
11.131.21.34 0:0:0:0:0:ffff:b83:1522
11.131.21.35 0:0:0:0:0:ffff:b83:1523
11.131.21.36 0:0:0:0:0:ffff:b83:1524
11.131.21.37 0:0:0:0:0:ffff:b83:1525
11.131.21.38 0:0:0:0:0:ffff:b83:1526
11.131.21.39 0:0:0:0:0:ffff:b83:1527
11.131.21.40 0:0:0:0:0:ffff:b83:1528
11.131.21.41 0:0:0:0:0:ffff:b83:1529
11.131.21.42 0:0:0:0:0:ffff:b83:152a
11.131.21.43 0:0:0:0:0:ffff:b83:152b
11.131.21.44 0:0:0:0:0:ffff:b83:152c
11.131.21.45 0:0:0:0:0:ffff:b83:152d
11.131.21.46 0:0:0:0:0:ffff:b83:152e
11.131.21.47 0:0:0:0:0:ffff:b83:152f
11.131.21.48 0:0:0:0:0:ffff:b83:1530
11.131.21.49 0:0:0:0:0:ffff:b83:1531
11.131.21.50 0:0:0:0:0:ffff:b83:1532
11.131.21.51 0:0:0:0:0:ffff:b83:1533
11.131.21.52 0:0:0:0:0:ffff:b83:1534
11.131.21.53 0:0:0:0:0:ffff:b83:1535
11.131.21.54 0:0:0:0:0:ffff:b83:1536
11.131.21.55 0:0:0:0:0:ffff:b83:1537
11.131.21.56 0:0:0:0:0:ffff:b83:1538
11.131.21.57 0:0:0:0:0:ffff:b83:1539
11.131.21.58 0:0:0:0:0:ffff:b83:153a
11.131.21.59 0:0:0:0:0:ffff:b83:153b
11.131.21.60 0:0:0:0:0:ffff:b83:153c


11.131.21.61 0:0:0:0:0:ffff:b83:153d
11.131.21.62 0:0:0:0:0:ffff:b83:153e
11.131.21.63 0:0:0:0:0:ffff:b83:153f
11.131.21.64 0:0:0:0:0:ffff:b83:1540
11.131.21.65 0:0:0:0:0:ffff:b83:1541
11.131.21.66 0:0:0:0:0:ffff:b83:1542
11.131.21.67 0:0:0:0:0:ffff:b83:1543
11.131.21.68 0:0:0:0:0:ffff:b83:1544
11.131.21.69 0:0:0:0:0:ffff:b83:1545
11.131.21.70 0:0:0:0:0:ffff:b83:1546
11.131.21.71 0:0:0:0:0:ffff:b83:1547
11.131.21.72 0:0:0:0:0:ffff:b83:1548
11.131.21.73 0:0:0:0:0:ffff:b83:1549
11.131.21.74 0:0:0:0:0:ffff:b83:154a
11.131.21.75 0:0:0:0:0:ffff:b83:154b
11.131.21.76 0:0:0:0:0:ffff:b83:154c
11.131.21.77 0:0:0:0:0:ffff:b83:154d
11.131.21.78 0:0:0:0:0:ffff:b83:154e
11.131.21.79 0:0:0:0:0:ffff:b83:154f
11.131.21.80 0:0:0:0:0:ffff:b83:1550
11.131.21.81 0:0:0:0:0:ffff:b83:1551
11.131.21.82 0:0:0:0:0:ffff:b83:1552
11.131.21.83 0:0:0:0:0:ffff:b83:1553
11.131.21.84 0:0:0:0:0:ffff:b83:1554
11.131.21.85 0:0:0:0:0:ffff:b83:1555
11.131.21.86 0:0:0:0:0:ffff:b83:1556
11.131.21.87 0:0:0:0:0:ffff:b83:1557
11.131.21.88 0:0:0:0:0:ffff:b83:1558
11.131.21.89 0:0:0:0:0:ffff:b83:1559
11.131.21.90 0:0:0:0:0:ffff:b83:155a
11.131.21.91 0:0:0:0:0:ffff:b83:155b
11.131.21.92 0:0:0:0:0:ffff:b83:155c
11.131.21.93 0:0:0:0:0:ffff:b83:155d
11.131.21.94 0:0:0:0:0:ffff:b83:155e
11.131.21.95 0:0:0:0:0:ffff:b83:155f
11.131.21.96 0:0:0:0:0:ffff:b83:1560
11.131.21.97 0:0:0:0:0:ffff:b83:1561
11.131.21.98 0:0:0:0:0:ffff:b83:1562
11.131.21.99 0:0:0:0:0:ffff:b83:1563
11.131.21.100 0:0:0:0:0:ffff:b83:1564
11.131.21.101 0:0:0:0:0:ffff:b83:1565
11.131.21.102 0:0:0:0:0:ffff:b83:1566
11.131.21.103 0:0:0:0:0:ffff:b83:1567
11.131.21.104 0:0:0:0:0:ffff:b83:1568
11.131.21.105 0:0:0:0:0:ffff:b83:1569
11.131.21.106 0:0:0:0:0:ffff:b83:156a
11.131.21.107 0:0:0:0:0:ffff:b83:156b
11.131.21.108 0:0:0:0:0:ffff:b83:156c
11.131.21.109 0:0:0:0:0:ffff:b83:156d
11.131.21.110 0:0:0:0:0:ffff:b83:156e
11.131.21.111 0:0:0:0:0:ffff:b83:156f
11.131.21.112 0:0:0:0:0:ffff:b83:1570
11.131.21.113 0:0:0:0:0:ffff:b83:1571
11.131.21.114 0:0:0:0:0:ffff:b83:1572
11.131.21.115 0:0:0:0:0:ffff:b83:1573
11.131.21.116 0:0:0:0:0:ffff:b83:1574
11.131.21.117 0:0:0:0:0:ffff:b83:1575
11.131.21.118 0:0:0:0:0:ffff:b83:1576
11.131.21.119 0:0:0:0:0:ffff:b83:1577
11.131.21.120 0:0:0:0:0:ffff:b83:1578


11.131.21.121 0:0:0:0:0:ffff:b83:1579
11.131.21.122 0:0:0:0:0:ffff:b83:157a
11.131.21.123 0:0:0:0:0:ffff:b83:157b
11.131.21.124 0:0:0:0:0:ffff:b83:157c
11.131.21.125 0:0:0:0:0:ffff:b83:157d
11.131.21.126 0:0:0:0:0:ffff:b83:157e
11.131.21.127 0:0:0:0:0:ffff:b83:157f
11.131.21.128 0:0:0:0:0:ffff:b83:1580
11.131.21.129 0:0:0:0:0:ffff:b83:1581
11.131.21.130 0:0:0:0:0:ffff:b83:1582
11.131.21.131 0:0:0:0:0:ffff:b83:1583
11.131.21.132 0:0:0:0:0:ffff:b83:1584
11.131.21.133 0:0:0:0:0:ffff:b83:1585
11.131.21.134 0:0:0:0:0:ffff:b83:1586
11.131.21.135 0:0:0:0:0:ffff:b83:1587
11.131.21.136 0:0:0:0:0:ffff:b83:1588
11.131.21.137 0:0:0:0:0:ffff:b83:1589
11.131.21.138 0:0:0:0:0:ffff:b83:158a
11.131.21.139 0:0:0:0:0:ffff:b83:158b
11.131.21.140 0:0:0:0:0:ffff:b83:158c
11.131.21.141 0:0:0:0:0:ffff:b83:158d
11.131.21.142 0:0:0:0:0:ffff:b83:158e
11.131.21.143 0:0:0:0:0:ffff:b83:158f
11.131.21.144 0:0:0:0:0:ffff:b83:1590
11.131.21.145 0:0:0:0:0:ffff:b83:1591
11.131.21.146 0:0:0:0:0:ffff:b83:1592
11.131.21.147 0:0:0:0:0:ffff:b83:1593
11.131.21.148 0:0:0:0:0:ffff:b83:1594
11.131.21.149 0:0:0:0:0:ffff:b83:1595
11.131.21.150 0:0:0:0:0:ffff:b83:1596
11.131.21.151 0:0:0:0:0:ffff:b83:1597
11.131.21.152 0:0:0:0:0:ffff:b83:1598
11.131.21.153 0:0:0:0:0:ffff:b83:1599
11.131.21.154 0:0:0:0:0:ffff:b83:159a
11.131.21.155 0:0:0:0:0:ffff:b83:159b
11.131.21.156 0:0:0:0:0:ffff:b83:159c
11.131.21.157 0:0:0:0:0:ffff:b83:159d
11.131.21.158 0:0:0:0:0:ffff:b83:159e
11.131.21.159 0:0:0:0:0:ffff:b83:159f
11.131.21.160 0:0:0:0:0:ffff:b83:15a0
11.131.21.161 0:0:0:0:0:ffff:b83:15a1
11.131.21.162 0:0:0:0:0:ffff:b83:15a2
11.131.21.163 0:0:0:0:0:ffff:b83:15a3
11.131.21.164 0:0:0:0:0:ffff:b83:15a4
11.131.21.165 0:0:0:0:0:ffff:b83:15a5
11.131.21.166 0:0:0:0:0:ffff:b83:15a6
11.131.21.167 0:0:0:0:0:ffff:b83:15a7
11.131.21.168 0:0:0:0:0:ffff:b83:15a8
11.131.21.169 0:0:0:0:0:ffff:b83:15a9
11.131.21.170 0:0:0:0:0:ffff:b83:15aa
11.131.21.171 0:0:0:0:0:ffff:b83:15ab
11.131.21.172 0:0:0:0:0:ffff:b83:15ac
11.131.21.173 0:0:0:0:0:ffff:b83:15ad
11.131.21.174 0:0:0:0:0:ffff:b83:15ae
11.131.21.175 0:0:0:0:0:ffff:b83:15af
11.131.21.176 0:0:0:0:0:ffff:b83:15b0
11.131.21.177 0:0:0:0:0:ffff:b83:15b1
11.131.21.178 0:0:0:0:0:ffff:b83:15b2
11.131.21.179 0:0:0:0:0:ffff:b83:15b3
11.131.21.180 0:0:0:0:0:ffff:b83:15b4


11.131.21.181 0:0:0:0:0:ffff:b83:15b5
11.131.21.182 0:0:0:0:0:ffff:b83:15b6
11.131.21.183 0:0:0:0:0:ffff:b83:15b7
11.131.21.184 0:0:0:0:0:ffff:b83:15b8
11.131.21.185 0:0:0:0:0:ffff:b83:15b9
11.131.21.186 0:0:0:0:0:ffff:b83:15ba
11.131.21.187 0:0:0:0:0:ffff:b83:15bb
11.131.21.188 0:0:0:0:0:ffff:b83:15bc
11.131.21.189 0:0:0:0:0:ffff:b83:15bd
11.131.21.190 0:0:0:0:0:ffff:b83:15be
11.131.21.191 0:0:0:0:0:ffff:b83:15bf
11.131.21.192 0:0:0:0:0:ffff:b83:15c0
11.131.21.193 0:0:0:0:0:ffff:b83:15c1
11.131.21.194 0:0:0:0:0:ffff:b83:15c2
11.131.21.195 0:0:0:0:0:ffff:b83:15c3
11.131.21.196 0:0:0:0:0:ffff:b83:15c4
11.131.21.197 0:0:0:0:0:ffff:b83:15c5
11.131.21.198 0:0:0:0:0:ffff:b83:15c6
11.131.21.199 0:0:0:0:0:ffff:b83:15c7
11.131.21.200 0:0:0:0:0:ffff:b83:15c8
11.131.21.201 0:0:0:0:0:ffff:b83:15c9
11.131.21.202 0:0:0:0:0:ffff:b83:15ca
11.131.21.203 0:0:0:0:0:ffff:b83:15cb
11.131.21.204 0:0:0:0:0:ffff:b83:15cc
11.131.21.205 0:0:0:0:0:ffff:b83:15cd
11.131.21.206 0:0:0:0:0:ffff:b83:15ce
11.131.21.207 0:0:0:0:0:ffff:b83:15cf
11.131.21.208 0:0:0:0:0:ffff:b83:15d0
11.131.21.209 0:0:0:0:0:ffff:b83:15d1
11.131.21.210 0:0:0:0:0:ffff:b83:15d2
11.131.21.211 0:0:0:0:0:ffff:b83:15d3
11.131.21.212 0:0:0:0:0:ffff:b83:15d4
11.131.21.213 0:0:0:0:0:ffff:b83:15d5
11.131.21.214 0:0:0:0:0:ffff:b83:15d6
11.131.21.215 0:0:0:0:0:ffff:b83:15d7
11.131.21.216 0:0:0:0:0:ffff:b83:15d8
11.131.21.217 0:0:0:0:0:ffff:b83:15d9
11.131.21.218 0:0:0:0:0:ffff:b83:15da
11.131.21.219 0:0:0:0:0:ffff:b83:15db
11.131.21.220 0:0:0:0:0:ffff:b83:15dc
11.131.21.221 0:0:0:0:0:ffff:b83:15dd
11.131.21.222 0:0:0:0:0:ffff:b83:15de
11.131.21.223 0:0:0:0:0:ffff:b83:15df
11.131.21.224 0:0:0:0:0:ffff:b83:15e0
11.131.21.225 0:0:0:0:0:ffff:b83:15e1
11.131.21.226 0:0:0:0:0:ffff:b83:15e2
11.131.21.227 0:0:0:0:0:ffff:b83:15e3
11.131.21.228 0:0:0:0:0:ffff:b83:15e4
11.131.21.229 0:0:0:0:0:ffff:b83:15e5
11.131.21.230 0:0:0:0:0:ffff:b83:15e6
11.131.21.231 0:0:0:0:0:ffff:b83:15e7
11.131.21.232 0:0:0:0:0:ffff:b83:15e8
11.131.21.233 0:0:0:0:0:ffff:b83:15e9
11.131.21.234 0:0:0:0:0:ffff:b83:15ea
11.131.21.235 0:0:0:0:0:ffff:b83:15eb
11.131.21.236 0:0:0:0:0:ffff:b83:15ec
11.131.21.237 0:0:0:0:0:ffff:b83:15ed
11.131.21.238 0:0:0:0:0:ffff:b83:15ee
11.131.21.239 0:0:0:0:0:ffff:b83:15ef
11.131.21.240 0:0:0:0:0:ffff:b83:15f0
11.131.21.241 0:0:0:0:0:ffff:b83:15f1
11.131.21.242 0:0:0:0:0:ffff:b83:15f2
11.131.21.243 0:0:0:0:0:ffff:b83:15f3
11.131.21.244 0:0:0:0:0:ffff:b83:15f4
11.131.21.245 0:0:0:0:0:ffff:b83:15f5
11.131.21.246 0:0:0:0:0:ffff:b83:15f6
11.131.21.247 0:0:0:0:0:ffff:b83:15f7
11.131.21.248 0:0:0:0:0:ffff:b83:15f8
11.131.21.249 0:0:0:0:0:ffff:b83:15f9
11.131.21.250 0:0:0:0:0:ffff:b83:15fa
11.131.21.251 0:0:0:0:0:ffff:b83:15fb
11.131.21.252 0:0:0:0:0:ffff:b83:15fc
11.131.21.253 0:0:0:0:0:ffff:b83:15fd
11.131.21.254 0:0:0:0:0:ffff:b83:15fe
11.131.21.255 0:0:0:0:0:ffff:b83:15ff


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.