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
31.28.181.1 0:0:0:0:0:ffff:1f1c:b501
31.28.181.2 0:0:0:0:0:ffff:1f1c:b502
31.28.181.3 0:0:0:0:0:ffff:1f1c:b503
31.28.181.4 0:0:0:0:0:ffff:1f1c:b504
31.28.181.5 0:0:0:0:0:ffff:1f1c:b505
31.28.181.6 0:0:0:0:0:ffff:1f1c:b506
31.28.181.7 0:0:0:0:0:ffff:1f1c:b507
31.28.181.8 0:0:0:0:0:ffff:1f1c:b508
31.28.181.9 0:0:0:0:0:ffff:1f1c:b509
31.28.181.10 0:0:0:0:0:ffff:1f1c:b50a
31.28.181.11 0:0:0:0:0:ffff:1f1c:b50b
31.28.181.12 0:0:0:0:0:ffff:1f1c:b50c
31.28.181.13 0:0:0:0:0:ffff:1f1c:b50d
31.28.181.14 0:0:0:0:0:ffff:1f1c:b50e
31.28.181.15 0:0:0:0:0:ffff:1f1c:b50f
31.28.181.16 0:0:0:0:0:ffff:1f1c:b510
31.28.181.17 0:0:0:0:0:ffff:1f1c:b511
31.28.181.18 0:0:0:0:0:ffff:1f1c:b512
31.28.181.19 0:0:0:0:0:ffff:1f1c:b513
31.28.181.20 0:0:0:0:0:ffff:1f1c:b514
31.28.181.21 0:0:0:0:0:ffff:1f1c:b515
31.28.181.22 0:0:0:0:0:ffff:1f1c:b516
31.28.181.23 0:0:0:0:0:ffff:1f1c:b517
31.28.181.24 0:0:0:0:0:ffff:1f1c:b518
31.28.181.25 0:0:0:0:0:ffff:1f1c:b519
31.28.181.26 0:0:0:0:0:ffff:1f1c:b51a
31.28.181.27 0:0:0:0:0:ffff:1f1c:b51b
31.28.181.28 0:0:0:0:0:ffff:1f1c:b51c
31.28.181.29 0:0:0:0:0:ffff:1f1c:b51d
31.28.181.30 0:0:0:0:0:ffff:1f1c:b51e
31.28.181.31 0:0:0:0:0:ffff:1f1c:b51f
31.28.181.32 0:0:0:0:0:ffff:1f1c:b520
31.28.181.33 0:0:0:0:0:ffff:1f1c:b521
31.28.181.34 0:0:0:0:0:ffff:1f1c:b522
31.28.181.35 0:0:0:0:0:ffff:1f1c:b523
31.28.181.36 0:0:0:0:0:ffff:1f1c:b524
31.28.181.37 0:0:0:0:0:ffff:1f1c:b525
31.28.181.38 0:0:0:0:0:ffff:1f1c:b526
31.28.181.39 0:0:0:0:0:ffff:1f1c:b527
31.28.181.40 0:0:0:0:0:ffff:1f1c:b528
31.28.181.41 0:0:0:0:0:ffff:1f1c:b529
31.28.181.42 0:0:0:0:0:ffff:1f1c:b52a
31.28.181.43 0:0:0:0:0:ffff:1f1c:b52b
31.28.181.44 0:0:0:0:0:ffff:1f1c:b52c
31.28.181.45 0:0:0:0:0:ffff:1f1c:b52d
31.28.181.46 0:0:0:0:0:ffff:1f1c:b52e
31.28.181.47 0:0:0:0:0:ffff:1f1c:b52f
31.28.181.48 0:0:0:0:0:ffff:1f1c:b530
31.28.181.49 0:0:0:0:0:ffff:1f1c:b531
31.28.181.50 0:0:0:0:0:ffff:1f1c:b532
31.28.181.51 0:0:0:0:0:ffff:1f1c:b533
31.28.181.52 0:0:0:0:0:ffff:1f1c:b534
31.28.181.53 0:0:0:0:0:ffff:1f1c:b535
31.28.181.54 0:0:0:0:0:ffff:1f1c:b536
31.28.181.55 0:0:0:0:0:ffff:1f1c:b537
31.28.181.56 0:0:0:0:0:ffff:1f1c:b538
31.28.181.57 0:0:0:0:0:ffff:1f1c:b539
31.28.181.58 0:0:0:0:0:ffff:1f1c:b53a
31.28.181.59 0:0:0:0:0:ffff:1f1c:b53b
31.28.181.60 0:0:0:0:0:ffff:1f1c:b53c


31.28.181.61 0:0:0:0:0:ffff:1f1c:b53d
31.28.181.62 0:0:0:0:0:ffff:1f1c:b53e
31.28.181.63 0:0:0:0:0:ffff:1f1c:b53f
31.28.181.64 0:0:0:0:0:ffff:1f1c:b540
31.28.181.65 0:0:0:0:0:ffff:1f1c:b541
31.28.181.66 0:0:0:0:0:ffff:1f1c:b542
31.28.181.67 0:0:0:0:0:ffff:1f1c:b543
31.28.181.68 0:0:0:0:0:ffff:1f1c:b544
31.28.181.69 0:0:0:0:0:ffff:1f1c:b545
31.28.181.70 0:0:0:0:0:ffff:1f1c:b546
31.28.181.71 0:0:0:0:0:ffff:1f1c:b547
31.28.181.72 0:0:0:0:0:ffff:1f1c:b548
31.28.181.73 0:0:0:0:0:ffff:1f1c:b549
31.28.181.74 0:0:0:0:0:ffff:1f1c:b54a
31.28.181.75 0:0:0:0:0:ffff:1f1c:b54b
31.28.181.76 0:0:0:0:0:ffff:1f1c:b54c
31.28.181.77 0:0:0:0:0:ffff:1f1c:b54d
31.28.181.78 0:0:0:0:0:ffff:1f1c:b54e
31.28.181.79 0:0:0:0:0:ffff:1f1c:b54f
31.28.181.80 0:0:0:0:0:ffff:1f1c:b550
31.28.181.81 0:0:0:0:0:ffff:1f1c:b551
31.28.181.82 0:0:0:0:0:ffff:1f1c:b552
31.28.181.83 0:0:0:0:0:ffff:1f1c:b553
31.28.181.84 0:0:0:0:0:ffff:1f1c:b554
31.28.181.85 0:0:0:0:0:ffff:1f1c:b555
31.28.181.86 0:0:0:0:0:ffff:1f1c:b556
31.28.181.87 0:0:0:0:0:ffff:1f1c:b557
31.28.181.88 0:0:0:0:0:ffff:1f1c:b558
31.28.181.89 0:0:0:0:0:ffff:1f1c:b559
31.28.181.90 0:0:0:0:0:ffff:1f1c:b55a
31.28.181.91 0:0:0:0:0:ffff:1f1c:b55b
31.28.181.92 0:0:0:0:0:ffff:1f1c:b55c
31.28.181.93 0:0:0:0:0:ffff:1f1c:b55d
31.28.181.94 0:0:0:0:0:ffff:1f1c:b55e
31.28.181.95 0:0:0:0:0:ffff:1f1c:b55f
31.28.181.96 0:0:0:0:0:ffff:1f1c:b560
31.28.181.97 0:0:0:0:0:ffff:1f1c:b561
31.28.181.98 0:0:0:0:0:ffff:1f1c:b562
31.28.181.99 0:0:0:0:0:ffff:1f1c:b563
31.28.181.100 0:0:0:0:0:ffff:1f1c:b564
31.28.181.101 0:0:0:0:0:ffff:1f1c:b565
31.28.181.102 0:0:0:0:0:ffff:1f1c:b566
31.28.181.103 0:0:0:0:0:ffff:1f1c:b567
31.28.181.104 0:0:0:0:0:ffff:1f1c:b568
31.28.181.105 0:0:0:0:0:ffff:1f1c:b569
31.28.181.106 0:0:0:0:0:ffff:1f1c:b56a
31.28.181.107 0:0:0:0:0:ffff:1f1c:b56b
31.28.181.108 0:0:0:0:0:ffff:1f1c:b56c
31.28.181.109 0:0:0:0:0:ffff:1f1c:b56d
31.28.181.110 0:0:0:0:0:ffff:1f1c:b56e
31.28.181.111 0:0:0:0:0:ffff:1f1c:b56f
31.28.181.112 0:0:0:0:0:ffff:1f1c:b570
31.28.181.113 0:0:0:0:0:ffff:1f1c:b571
31.28.181.114 0:0:0:0:0:ffff:1f1c:b572
31.28.181.115 0:0:0:0:0:ffff:1f1c:b573
31.28.181.116 0:0:0:0:0:ffff:1f1c:b574
31.28.181.117 0:0:0:0:0:ffff:1f1c:b575
31.28.181.118 0:0:0:0:0:ffff:1f1c:b576
31.28.181.119 0:0:0:0:0:ffff:1f1c:b577
31.28.181.120 0:0:0:0:0:ffff:1f1c:b578


31.28.181.121 0:0:0:0:0:ffff:1f1c:b579
31.28.181.122 0:0:0:0:0:ffff:1f1c:b57a
31.28.181.123 0:0:0:0:0:ffff:1f1c:b57b
31.28.181.124 0:0:0:0:0:ffff:1f1c:b57c
31.28.181.125 0:0:0:0:0:ffff:1f1c:b57d
31.28.181.126 0:0:0:0:0:ffff:1f1c:b57e
31.28.181.127 0:0:0:0:0:ffff:1f1c:b57f
31.28.181.128 0:0:0:0:0:ffff:1f1c:b580
31.28.181.129 0:0:0:0:0:ffff:1f1c:b581
31.28.181.130 0:0:0:0:0:ffff:1f1c:b582
31.28.181.131 0:0:0:0:0:ffff:1f1c:b583
31.28.181.132 0:0:0:0:0:ffff:1f1c:b584
31.28.181.133 0:0:0:0:0:ffff:1f1c:b585
31.28.181.134 0:0:0:0:0:ffff:1f1c:b586
31.28.181.135 0:0:0:0:0:ffff:1f1c:b587
31.28.181.136 0:0:0:0:0:ffff:1f1c:b588
31.28.181.137 0:0:0:0:0:ffff:1f1c:b589
31.28.181.138 0:0:0:0:0:ffff:1f1c:b58a
31.28.181.139 0:0:0:0:0:ffff:1f1c:b58b
31.28.181.140 0:0:0:0:0:ffff:1f1c:b58c
31.28.181.141 0:0:0:0:0:ffff:1f1c:b58d
31.28.181.142 0:0:0:0:0:ffff:1f1c:b58e
31.28.181.143 0:0:0:0:0:ffff:1f1c:b58f
31.28.181.144 0:0:0:0:0:ffff:1f1c:b590
31.28.181.145 0:0:0:0:0:ffff:1f1c:b591
31.28.181.146 0:0:0:0:0:ffff:1f1c:b592
31.28.181.147 0:0:0:0:0:ffff:1f1c:b593
31.28.181.148 0:0:0:0:0:ffff:1f1c:b594
31.28.181.149 0:0:0:0:0:ffff:1f1c:b595
31.28.181.150 0:0:0:0:0:ffff:1f1c:b596
31.28.181.151 0:0:0:0:0:ffff:1f1c:b597
31.28.181.152 0:0:0:0:0:ffff:1f1c:b598
31.28.181.153 0:0:0:0:0:ffff:1f1c:b599
31.28.181.154 0:0:0:0:0:ffff:1f1c:b59a
31.28.181.155 0:0:0:0:0:ffff:1f1c:b59b
31.28.181.156 0:0:0:0:0:ffff:1f1c:b59c
31.28.181.157 0:0:0:0:0:ffff:1f1c:b59d
31.28.181.158 0:0:0:0:0:ffff:1f1c:b59e
31.28.181.159 0:0:0:0:0:ffff:1f1c:b59f
31.28.181.160 0:0:0:0:0:ffff:1f1c:b5a0
31.28.181.161 0:0:0:0:0:ffff:1f1c:b5a1
31.28.181.162 0:0:0:0:0:ffff:1f1c:b5a2
31.28.181.163 0:0:0:0:0:ffff:1f1c:b5a3
31.28.181.164 0:0:0:0:0:ffff:1f1c:b5a4
31.28.181.165 0:0:0:0:0:ffff:1f1c:b5a5
31.28.181.166 0:0:0:0:0:ffff:1f1c:b5a6
31.28.181.167 0:0:0:0:0:ffff:1f1c:b5a7
31.28.181.168 0:0:0:0:0:ffff:1f1c:b5a8
31.28.181.169 0:0:0:0:0:ffff:1f1c:b5a9
31.28.181.170 0:0:0:0:0:ffff:1f1c:b5aa
31.28.181.171 0:0:0:0:0:ffff:1f1c:b5ab
31.28.181.172 0:0:0:0:0:ffff:1f1c:b5ac
31.28.181.173 0:0:0:0:0:ffff:1f1c:b5ad
31.28.181.174 0:0:0:0:0:ffff:1f1c:b5ae
31.28.181.175 0:0:0:0:0:ffff:1f1c:b5af
31.28.181.176 0:0:0:0:0:ffff:1f1c:b5b0
31.28.181.177 0:0:0:0:0:ffff:1f1c:b5b1
31.28.181.178 0:0:0:0:0:ffff:1f1c:b5b2
31.28.181.179 0:0:0:0:0:ffff:1f1c:b5b3
31.28.181.180 0:0:0:0:0:ffff:1f1c:b5b4


31.28.181.181 0:0:0:0:0:ffff:1f1c:b5b5
31.28.181.182 0:0:0:0:0:ffff:1f1c:b5b6
31.28.181.183 0:0:0:0:0:ffff:1f1c:b5b7
31.28.181.184 0:0:0:0:0:ffff:1f1c:b5b8
31.28.181.185 0:0:0:0:0:ffff:1f1c:b5b9
31.28.181.186 0:0:0:0:0:ffff:1f1c:b5ba
31.28.181.187 0:0:0:0:0:ffff:1f1c:b5bb
31.28.181.188 0:0:0:0:0:ffff:1f1c:b5bc
31.28.181.189 0:0:0:0:0:ffff:1f1c:b5bd
31.28.181.190 0:0:0:0:0:ffff:1f1c:b5be
31.28.181.191 0:0:0:0:0:ffff:1f1c:b5bf
31.28.181.192 0:0:0:0:0:ffff:1f1c:b5c0
31.28.181.193 0:0:0:0:0:ffff:1f1c:b5c1
31.28.181.194 0:0:0:0:0:ffff:1f1c:b5c2
31.28.181.195 0:0:0:0:0:ffff:1f1c:b5c3
31.28.181.196 0:0:0:0:0:ffff:1f1c:b5c4
31.28.181.197 0:0:0:0:0:ffff:1f1c:b5c5
31.28.181.198 0:0:0:0:0:ffff:1f1c:b5c6
31.28.181.199 0:0:0:0:0:ffff:1f1c:b5c7
31.28.181.200 0:0:0:0:0:ffff:1f1c:b5c8
31.28.181.201 0:0:0:0:0:ffff:1f1c:b5c9
31.28.181.202 0:0:0:0:0:ffff:1f1c:b5ca
31.28.181.203 0:0:0:0:0:ffff:1f1c:b5cb
31.28.181.204 0:0:0:0:0:ffff:1f1c:b5cc
31.28.181.205 0:0:0:0:0:ffff:1f1c:b5cd
31.28.181.206 0:0:0:0:0:ffff:1f1c:b5ce
31.28.181.207 0:0:0:0:0:ffff:1f1c:b5cf
31.28.181.208 0:0:0:0:0:ffff:1f1c:b5d0
31.28.181.209 0:0:0:0:0:ffff:1f1c:b5d1
31.28.181.210 0:0:0:0:0:ffff:1f1c:b5d2
31.28.181.211 0:0:0:0:0:ffff:1f1c:b5d3
31.28.181.212 0:0:0:0:0:ffff:1f1c:b5d4
31.28.181.213 0:0:0:0:0:ffff:1f1c:b5d5
31.28.181.214 0:0:0:0:0:ffff:1f1c:b5d6
31.28.181.215 0:0:0:0:0:ffff:1f1c:b5d7
31.28.181.216 0:0:0:0:0:ffff:1f1c:b5d8
31.28.181.217 0:0:0:0:0:ffff:1f1c:b5d9
31.28.181.218 0:0:0:0:0:ffff:1f1c:b5da
31.28.181.219 0:0:0:0:0:ffff:1f1c:b5db
31.28.181.220 0:0:0:0:0:ffff:1f1c:b5dc
31.28.181.221 0:0:0:0:0:ffff:1f1c:b5dd
31.28.181.222 0:0:0:0:0:ffff:1f1c:b5de
31.28.181.223 0:0:0:0:0:ffff:1f1c:b5df
31.28.181.224 0:0:0:0:0:ffff:1f1c:b5e0
31.28.181.225 0:0:0:0:0:ffff:1f1c:b5e1
31.28.181.226 0:0:0:0:0:ffff:1f1c:b5e2
31.28.181.227 0:0:0:0:0:ffff:1f1c:b5e3
31.28.181.228 0:0:0:0:0:ffff:1f1c:b5e4
31.28.181.229 0:0:0:0:0:ffff:1f1c:b5e5
31.28.181.230 0:0:0:0:0:ffff:1f1c:b5e6
31.28.181.231 0:0:0:0:0:ffff:1f1c:b5e7
31.28.181.232 0:0:0:0:0:ffff:1f1c:b5e8
31.28.181.233 0:0:0:0:0:ffff:1f1c:b5e9
31.28.181.234 0:0:0:0:0:ffff:1f1c:b5ea
31.28.181.235 0:0:0:0:0:ffff:1f1c:b5eb
31.28.181.236 0:0:0:0:0:ffff:1f1c:b5ec
31.28.181.237 0:0:0:0:0:ffff:1f1c:b5ed
31.28.181.238 0:0:0:0:0:ffff:1f1c:b5ee
31.28.181.239 0:0:0:0:0:ffff:1f1c:b5ef
31.28.181.240 0:0:0:0:0:ffff:1f1c:b5f0
31.28.181.241 0:0:0:0:0:ffff:1f1c:b5f1
31.28.181.242 0:0:0:0:0:ffff:1f1c:b5f2
31.28.181.243 0:0:0:0:0:ffff:1f1c:b5f3
31.28.181.244 0:0:0:0:0:ffff:1f1c:b5f4
31.28.181.245 0:0:0:0:0:ffff:1f1c:b5f5
31.28.181.246 0:0:0:0:0:ffff:1f1c:b5f6
31.28.181.247 0:0:0:0:0:ffff:1f1c:b5f7
31.28.181.248 0:0:0:0:0:ffff:1f1c:b5f8
31.28.181.249 0:0:0:0:0:ffff:1f1c:b5f9
31.28.181.250 0:0:0:0:0:ffff:1f1c:b5fa
31.28.181.251 0:0:0:0:0:ffff:1f1c:b5fb
31.28.181.252 0:0:0:0:0:ffff:1f1c:b5fc
31.28.181.253 0:0:0:0:0:ffff:1f1c:b5fd
31.28.181.254 0:0:0:0:0:ffff:1f1c:b5fe
31.28.181.255 0:0:0:0:0:ffff:1f1c:b5ff


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.