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
85.7.21.1 0:0:0:0:0:ffff:5507:1501
85.7.21.2 0:0:0:0:0:ffff:5507:1502
85.7.21.3 0:0:0:0:0:ffff:5507:1503
85.7.21.4 0:0:0:0:0:ffff:5507:1504
85.7.21.5 0:0:0:0:0:ffff:5507:1505
85.7.21.6 0:0:0:0:0:ffff:5507:1506
85.7.21.7 0:0:0:0:0:ffff:5507:1507
85.7.21.8 0:0:0:0:0:ffff:5507:1508
85.7.21.9 0:0:0:0:0:ffff:5507:1509
85.7.21.10 0:0:0:0:0:ffff:5507:150a
85.7.21.11 0:0:0:0:0:ffff:5507:150b
85.7.21.12 0:0:0:0:0:ffff:5507:150c
85.7.21.13 0:0:0:0:0:ffff:5507:150d
85.7.21.14 0:0:0:0:0:ffff:5507:150e
85.7.21.15 0:0:0:0:0:ffff:5507:150f
85.7.21.16 0:0:0:0:0:ffff:5507:1510
85.7.21.17 0:0:0:0:0:ffff:5507:1511
85.7.21.18 0:0:0:0:0:ffff:5507:1512
85.7.21.19 0:0:0:0:0:ffff:5507:1513
85.7.21.20 0:0:0:0:0:ffff:5507:1514
85.7.21.21 0:0:0:0:0:ffff:5507:1515
85.7.21.22 0:0:0:0:0:ffff:5507:1516
85.7.21.23 0:0:0:0:0:ffff:5507:1517
85.7.21.24 0:0:0:0:0:ffff:5507:1518
85.7.21.25 0:0:0:0:0:ffff:5507:1519
85.7.21.26 0:0:0:0:0:ffff:5507:151a
85.7.21.27 0:0:0:0:0:ffff:5507:151b
85.7.21.28 0:0:0:0:0:ffff:5507:151c
85.7.21.29 0:0:0:0:0:ffff:5507:151d
85.7.21.30 0:0:0:0:0:ffff:5507:151e
85.7.21.31 0:0:0:0:0:ffff:5507:151f
85.7.21.32 0:0:0:0:0:ffff:5507:1520
85.7.21.33 0:0:0:0:0:ffff:5507:1521
85.7.21.34 0:0:0:0:0:ffff:5507:1522
85.7.21.35 0:0:0:0:0:ffff:5507:1523
85.7.21.36 0:0:0:0:0:ffff:5507:1524
85.7.21.37 0:0:0:0:0:ffff:5507:1525
85.7.21.38 0:0:0:0:0:ffff:5507:1526
85.7.21.39 0:0:0:0:0:ffff:5507:1527
85.7.21.40 0:0:0:0:0:ffff:5507:1528
85.7.21.41 0:0:0:0:0:ffff:5507:1529
85.7.21.42 0:0:0:0:0:ffff:5507:152a
85.7.21.43 0:0:0:0:0:ffff:5507:152b
85.7.21.44 0:0:0:0:0:ffff:5507:152c
85.7.21.45 0:0:0:0:0:ffff:5507:152d
85.7.21.46 0:0:0:0:0:ffff:5507:152e
85.7.21.47 0:0:0:0:0:ffff:5507:152f
85.7.21.48 0:0:0:0:0:ffff:5507:1530
85.7.21.49 0:0:0:0:0:ffff:5507:1531
85.7.21.50 0:0:0:0:0:ffff:5507:1532
85.7.21.51 0:0:0:0:0:ffff:5507:1533
85.7.21.52 0:0:0:0:0:ffff:5507:1534
85.7.21.53 0:0:0:0:0:ffff:5507:1535
85.7.21.54 0:0:0:0:0:ffff:5507:1536
85.7.21.55 0:0:0:0:0:ffff:5507:1537
85.7.21.56 0:0:0:0:0:ffff:5507:1538
85.7.21.57 0:0:0:0:0:ffff:5507:1539
85.7.21.58 0:0:0:0:0:ffff:5507:153a
85.7.21.59 0:0:0:0:0:ffff:5507:153b
85.7.21.60 0:0:0:0:0:ffff:5507:153c


85.7.21.61 0:0:0:0:0:ffff:5507:153d
85.7.21.62 0:0:0:0:0:ffff:5507:153e
85.7.21.63 0:0:0:0:0:ffff:5507:153f
85.7.21.64 0:0:0:0:0:ffff:5507:1540
85.7.21.65 0:0:0:0:0:ffff:5507:1541
85.7.21.66 0:0:0:0:0:ffff:5507:1542
85.7.21.67 0:0:0:0:0:ffff:5507:1543
85.7.21.68 0:0:0:0:0:ffff:5507:1544
85.7.21.69 0:0:0:0:0:ffff:5507:1545
85.7.21.70 0:0:0:0:0:ffff:5507:1546
85.7.21.71 0:0:0:0:0:ffff:5507:1547
85.7.21.72 0:0:0:0:0:ffff:5507:1548
85.7.21.73 0:0:0:0:0:ffff:5507:1549
85.7.21.74 0:0:0:0:0:ffff:5507:154a
85.7.21.75 0:0:0:0:0:ffff:5507:154b
85.7.21.76 0:0:0:0:0:ffff:5507:154c
85.7.21.77 0:0:0:0:0:ffff:5507:154d
85.7.21.78 0:0:0:0:0:ffff:5507:154e
85.7.21.79 0:0:0:0:0:ffff:5507:154f
85.7.21.80 0:0:0:0:0:ffff:5507:1550
85.7.21.81 0:0:0:0:0:ffff:5507:1551
85.7.21.82 0:0:0:0:0:ffff:5507:1552
85.7.21.83 0:0:0:0:0:ffff:5507:1553
85.7.21.84 0:0:0:0:0:ffff:5507:1554
85.7.21.85 0:0:0:0:0:ffff:5507:1555
85.7.21.86 0:0:0:0:0:ffff:5507:1556
85.7.21.87 0:0:0:0:0:ffff:5507:1557
85.7.21.88 0:0:0:0:0:ffff:5507:1558
85.7.21.89 0:0:0:0:0:ffff:5507:1559
85.7.21.90 0:0:0:0:0:ffff:5507:155a
85.7.21.91 0:0:0:0:0:ffff:5507:155b
85.7.21.92 0:0:0:0:0:ffff:5507:155c
85.7.21.93 0:0:0:0:0:ffff:5507:155d
85.7.21.94 0:0:0:0:0:ffff:5507:155e
85.7.21.95 0:0:0:0:0:ffff:5507:155f
85.7.21.96 0:0:0:0:0:ffff:5507:1560
85.7.21.97 0:0:0:0:0:ffff:5507:1561
85.7.21.98 0:0:0:0:0:ffff:5507:1562
85.7.21.99 0:0:0:0:0:ffff:5507:1563
85.7.21.100 0:0:0:0:0:ffff:5507:1564
85.7.21.101 0:0:0:0:0:ffff:5507:1565
85.7.21.102 0:0:0:0:0:ffff:5507:1566
85.7.21.103 0:0:0:0:0:ffff:5507:1567
85.7.21.104 0:0:0:0:0:ffff:5507:1568
85.7.21.105 0:0:0:0:0:ffff:5507:1569
85.7.21.106 0:0:0:0:0:ffff:5507:156a
85.7.21.107 0:0:0:0:0:ffff:5507:156b
85.7.21.108 0:0:0:0:0:ffff:5507:156c
85.7.21.109 0:0:0:0:0:ffff:5507:156d
85.7.21.110 0:0:0:0:0:ffff:5507:156e
85.7.21.111 0:0:0:0:0:ffff:5507:156f
85.7.21.112 0:0:0:0:0:ffff:5507:1570
85.7.21.113 0:0:0:0:0:ffff:5507:1571
85.7.21.114 0:0:0:0:0:ffff:5507:1572
85.7.21.115 0:0:0:0:0:ffff:5507:1573
85.7.21.116 0:0:0:0:0:ffff:5507:1574
85.7.21.117 0:0:0:0:0:ffff:5507:1575
85.7.21.118 0:0:0:0:0:ffff:5507:1576
85.7.21.119 0:0:0:0:0:ffff:5507:1577
85.7.21.120 0:0:0:0:0:ffff:5507:1578


85.7.21.121 0:0:0:0:0:ffff:5507:1579
85.7.21.122 0:0:0:0:0:ffff:5507:157a
85.7.21.123 0:0:0:0:0:ffff:5507:157b
85.7.21.124 0:0:0:0:0:ffff:5507:157c
85.7.21.125 0:0:0:0:0:ffff:5507:157d
85.7.21.126 0:0:0:0:0:ffff:5507:157e
85.7.21.127 0:0:0:0:0:ffff:5507:157f
85.7.21.128 0:0:0:0:0:ffff:5507:1580
85.7.21.129 0:0:0:0:0:ffff:5507:1581
85.7.21.130 0:0:0:0:0:ffff:5507:1582
85.7.21.131 0:0:0:0:0:ffff:5507:1583
85.7.21.132 0:0:0:0:0:ffff:5507:1584
85.7.21.133 0:0:0:0:0:ffff:5507:1585
85.7.21.134 0:0:0:0:0:ffff:5507:1586
85.7.21.135 0:0:0:0:0:ffff:5507:1587
85.7.21.136 0:0:0:0:0:ffff:5507:1588
85.7.21.137 0:0:0:0:0:ffff:5507:1589
85.7.21.138 0:0:0:0:0:ffff:5507:158a
85.7.21.139 0:0:0:0:0:ffff:5507:158b
85.7.21.140 0:0:0:0:0:ffff:5507:158c
85.7.21.141 0:0:0:0:0:ffff:5507:158d
85.7.21.142 0:0:0:0:0:ffff:5507:158e
85.7.21.143 0:0:0:0:0:ffff:5507:158f
85.7.21.144 0:0:0:0:0:ffff:5507:1590
85.7.21.145 0:0:0:0:0:ffff:5507:1591
85.7.21.146 0:0:0:0:0:ffff:5507:1592
85.7.21.147 0:0:0:0:0:ffff:5507:1593
85.7.21.148 0:0:0:0:0:ffff:5507:1594
85.7.21.149 0:0:0:0:0:ffff:5507:1595
85.7.21.150 0:0:0:0:0:ffff:5507:1596
85.7.21.151 0:0:0:0:0:ffff:5507:1597
85.7.21.152 0:0:0:0:0:ffff:5507:1598
85.7.21.153 0:0:0:0:0:ffff:5507:1599
85.7.21.154 0:0:0:0:0:ffff:5507:159a
85.7.21.155 0:0:0:0:0:ffff:5507:159b
85.7.21.156 0:0:0:0:0:ffff:5507:159c
85.7.21.157 0:0:0:0:0:ffff:5507:159d
85.7.21.158 0:0:0:0:0:ffff:5507:159e
85.7.21.159 0:0:0:0:0:ffff:5507:159f
85.7.21.160 0:0:0:0:0:ffff:5507:15a0
85.7.21.161 0:0:0:0:0:ffff:5507:15a1
85.7.21.162 0:0:0:0:0:ffff:5507:15a2
85.7.21.163 0:0:0:0:0:ffff:5507:15a3
85.7.21.164 0:0:0:0:0:ffff:5507:15a4
85.7.21.165 0:0:0:0:0:ffff:5507:15a5
85.7.21.166 0:0:0:0:0:ffff:5507:15a6
85.7.21.167 0:0:0:0:0:ffff:5507:15a7
85.7.21.168 0:0:0:0:0:ffff:5507:15a8
85.7.21.169 0:0:0:0:0:ffff:5507:15a9
85.7.21.170 0:0:0:0:0:ffff:5507:15aa
85.7.21.171 0:0:0:0:0:ffff:5507:15ab
85.7.21.172 0:0:0:0:0:ffff:5507:15ac
85.7.21.173 0:0:0:0:0:ffff:5507:15ad
85.7.21.174 0:0:0:0:0:ffff:5507:15ae
85.7.21.175 0:0:0:0:0:ffff:5507:15af
85.7.21.176 0:0:0:0:0:ffff:5507:15b0
85.7.21.177 0:0:0:0:0:ffff:5507:15b1
85.7.21.178 0:0:0:0:0:ffff:5507:15b2
85.7.21.179 0:0:0:0:0:ffff:5507:15b3
85.7.21.180 0:0:0:0:0:ffff:5507:15b4


85.7.21.181 0:0:0:0:0:ffff:5507:15b5
85.7.21.182 0:0:0:0:0:ffff:5507:15b6
85.7.21.183 0:0:0:0:0:ffff:5507:15b7
85.7.21.184 0:0:0:0:0:ffff:5507:15b8
85.7.21.185 0:0:0:0:0:ffff:5507:15b9
85.7.21.186 0:0:0:0:0:ffff:5507:15ba
85.7.21.187 0:0:0:0:0:ffff:5507:15bb
85.7.21.188 0:0:0:0:0:ffff:5507:15bc
85.7.21.189 0:0:0:0:0:ffff:5507:15bd
85.7.21.190 0:0:0:0:0:ffff:5507:15be
85.7.21.191 0:0:0:0:0:ffff:5507:15bf
85.7.21.192 0:0:0:0:0:ffff:5507:15c0
85.7.21.193 0:0:0:0:0:ffff:5507:15c1
85.7.21.194 0:0:0:0:0:ffff:5507:15c2
85.7.21.195 0:0:0:0:0:ffff:5507:15c3
85.7.21.196 0:0:0:0:0:ffff:5507:15c4
85.7.21.197 0:0:0:0:0:ffff:5507:15c5
85.7.21.198 0:0:0:0:0:ffff:5507:15c6
85.7.21.199 0:0:0:0:0:ffff:5507:15c7
85.7.21.200 0:0:0:0:0:ffff:5507:15c8
85.7.21.201 0:0:0:0:0:ffff:5507:15c9
85.7.21.202 0:0:0:0:0:ffff:5507:15ca
85.7.21.203 0:0:0:0:0:ffff:5507:15cb
85.7.21.204 0:0:0:0:0:ffff:5507:15cc
85.7.21.205 0:0:0:0:0:ffff:5507:15cd
85.7.21.206 0:0:0:0:0:ffff:5507:15ce
85.7.21.207 0:0:0:0:0:ffff:5507:15cf
85.7.21.208 0:0:0:0:0:ffff:5507:15d0
85.7.21.209 0:0:0:0:0:ffff:5507:15d1
85.7.21.210 0:0:0:0:0:ffff:5507:15d2
85.7.21.211 0:0:0:0:0:ffff:5507:15d3
85.7.21.212 0:0:0:0:0:ffff:5507:15d4
85.7.21.213 0:0:0:0:0:ffff:5507:15d5
85.7.21.214 0:0:0:0:0:ffff:5507:15d6
85.7.21.215 0:0:0:0:0:ffff:5507:15d7
85.7.21.216 0:0:0:0:0:ffff:5507:15d8
85.7.21.217 0:0:0:0:0:ffff:5507:15d9
85.7.21.218 0:0:0:0:0:ffff:5507:15da
85.7.21.219 0:0:0:0:0:ffff:5507:15db
85.7.21.220 0:0:0:0:0:ffff:5507:15dc
85.7.21.221 0:0:0:0:0:ffff:5507:15dd
85.7.21.222 0:0:0:0:0:ffff:5507:15de
85.7.21.223 0:0:0:0:0:ffff:5507:15df
85.7.21.224 0:0:0:0:0:ffff:5507:15e0
85.7.21.225 0:0:0:0:0:ffff:5507:15e1
85.7.21.226 0:0:0:0:0:ffff:5507:15e2
85.7.21.227 0:0:0:0:0:ffff:5507:15e3
85.7.21.228 0:0:0:0:0:ffff:5507:15e4
85.7.21.229 0:0:0:0:0:ffff:5507:15e5
85.7.21.230 0:0:0:0:0:ffff:5507:15e6
85.7.21.231 0:0:0:0:0:ffff:5507:15e7
85.7.21.232 0:0:0:0:0:ffff:5507:15e8
85.7.21.233 0:0:0:0:0:ffff:5507:15e9
85.7.21.234 0:0:0:0:0:ffff:5507:15ea
85.7.21.235 0:0:0:0:0:ffff:5507:15eb
85.7.21.236 0:0:0:0:0:ffff:5507:15ec
85.7.21.237 0:0:0:0:0:ffff:5507:15ed
85.7.21.238 0:0:0:0:0:ffff:5507:15ee
85.7.21.239 0:0:0:0:0:ffff:5507:15ef
85.7.21.240 0:0:0:0:0:ffff:5507:15f0
85.7.21.241 0:0:0:0:0:ffff:5507:15f1
85.7.21.242 0:0:0:0:0:ffff:5507:15f2
85.7.21.243 0:0:0:0:0:ffff:5507:15f3
85.7.21.244 0:0:0:0:0:ffff:5507:15f4
85.7.21.245 0:0:0:0:0:ffff:5507:15f5
85.7.21.246 0:0:0:0:0:ffff:5507:15f6
85.7.21.247 0:0:0:0:0:ffff:5507:15f7
85.7.21.248 0:0:0:0:0:ffff:5507:15f8
85.7.21.249 0:0:0:0:0:ffff:5507:15f9
85.7.21.250 0:0:0:0:0:ffff:5507:15fa
85.7.21.251 0:0:0:0:0:ffff:5507:15fb
85.7.21.252 0:0:0:0:0:ffff:5507:15fc
85.7.21.253 0:0:0:0:0:ffff:5507:15fd
85.7.21.254 0:0:0:0:0:ffff:5507:15fe
85.7.21.255 0:0:0:0:0:ffff:5507:15ff


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.