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
99.123.181.1 0:0:0:0:0:ffff:637b:b501
99.123.181.2 0:0:0:0:0:ffff:637b:b502
99.123.181.3 0:0:0:0:0:ffff:637b:b503
99.123.181.4 0:0:0:0:0:ffff:637b:b504
99.123.181.5 0:0:0:0:0:ffff:637b:b505
99.123.181.6 0:0:0:0:0:ffff:637b:b506
99.123.181.7 0:0:0:0:0:ffff:637b:b507
99.123.181.8 0:0:0:0:0:ffff:637b:b508
99.123.181.9 0:0:0:0:0:ffff:637b:b509
99.123.181.10 0:0:0:0:0:ffff:637b:b50a
99.123.181.11 0:0:0:0:0:ffff:637b:b50b
99.123.181.12 0:0:0:0:0:ffff:637b:b50c
99.123.181.13 0:0:0:0:0:ffff:637b:b50d
99.123.181.14 0:0:0:0:0:ffff:637b:b50e
99.123.181.15 0:0:0:0:0:ffff:637b:b50f
99.123.181.16 0:0:0:0:0:ffff:637b:b510
99.123.181.17 0:0:0:0:0:ffff:637b:b511
99.123.181.18 0:0:0:0:0:ffff:637b:b512
99.123.181.19 0:0:0:0:0:ffff:637b:b513
99.123.181.20 0:0:0:0:0:ffff:637b:b514
99.123.181.21 0:0:0:0:0:ffff:637b:b515
99.123.181.22 0:0:0:0:0:ffff:637b:b516
99.123.181.23 0:0:0:0:0:ffff:637b:b517
99.123.181.24 0:0:0:0:0:ffff:637b:b518
99.123.181.25 0:0:0:0:0:ffff:637b:b519
99.123.181.26 0:0:0:0:0:ffff:637b:b51a
99.123.181.27 0:0:0:0:0:ffff:637b:b51b
99.123.181.28 0:0:0:0:0:ffff:637b:b51c
99.123.181.29 0:0:0:0:0:ffff:637b:b51d
99.123.181.30 0:0:0:0:0:ffff:637b:b51e
99.123.181.31 0:0:0:0:0:ffff:637b:b51f
99.123.181.32 0:0:0:0:0:ffff:637b:b520
99.123.181.33 0:0:0:0:0:ffff:637b:b521
99.123.181.34 0:0:0:0:0:ffff:637b:b522
99.123.181.35 0:0:0:0:0:ffff:637b:b523
99.123.181.36 0:0:0:0:0:ffff:637b:b524
99.123.181.37 0:0:0:0:0:ffff:637b:b525
99.123.181.38 0:0:0:0:0:ffff:637b:b526
99.123.181.39 0:0:0:0:0:ffff:637b:b527
99.123.181.40 0:0:0:0:0:ffff:637b:b528
99.123.181.41 0:0:0:0:0:ffff:637b:b529
99.123.181.42 0:0:0:0:0:ffff:637b:b52a
99.123.181.43 0:0:0:0:0:ffff:637b:b52b
99.123.181.44 0:0:0:0:0:ffff:637b:b52c
99.123.181.45 0:0:0:0:0:ffff:637b:b52d
99.123.181.46 0:0:0:0:0:ffff:637b:b52e
99.123.181.47 0:0:0:0:0:ffff:637b:b52f
99.123.181.48 0:0:0:0:0:ffff:637b:b530
99.123.181.49 0:0:0:0:0:ffff:637b:b531
99.123.181.50 0:0:0:0:0:ffff:637b:b532
99.123.181.51 0:0:0:0:0:ffff:637b:b533
99.123.181.52 0:0:0:0:0:ffff:637b:b534
99.123.181.53 0:0:0:0:0:ffff:637b:b535
99.123.181.54 0:0:0:0:0:ffff:637b:b536
99.123.181.55 0:0:0:0:0:ffff:637b:b537
99.123.181.56 0:0:0:0:0:ffff:637b:b538
99.123.181.57 0:0:0:0:0:ffff:637b:b539
99.123.181.58 0:0:0:0:0:ffff:637b:b53a
99.123.181.59 0:0:0:0:0:ffff:637b:b53b
99.123.181.60 0:0:0:0:0:ffff:637b:b53c


99.123.181.61 0:0:0:0:0:ffff:637b:b53d
99.123.181.62 0:0:0:0:0:ffff:637b:b53e
99.123.181.63 0:0:0:0:0:ffff:637b:b53f
99.123.181.64 0:0:0:0:0:ffff:637b:b540
99.123.181.65 0:0:0:0:0:ffff:637b:b541
99.123.181.66 0:0:0:0:0:ffff:637b:b542
99.123.181.67 0:0:0:0:0:ffff:637b:b543
99.123.181.68 0:0:0:0:0:ffff:637b:b544
99.123.181.69 0:0:0:0:0:ffff:637b:b545
99.123.181.70 0:0:0:0:0:ffff:637b:b546
99.123.181.71 0:0:0:0:0:ffff:637b:b547
99.123.181.72 0:0:0:0:0:ffff:637b:b548
99.123.181.73 0:0:0:0:0:ffff:637b:b549
99.123.181.74 0:0:0:0:0:ffff:637b:b54a
99.123.181.75 0:0:0:0:0:ffff:637b:b54b
99.123.181.76 0:0:0:0:0:ffff:637b:b54c
99.123.181.77 0:0:0:0:0:ffff:637b:b54d
99.123.181.78 0:0:0:0:0:ffff:637b:b54e
99.123.181.79 0:0:0:0:0:ffff:637b:b54f
99.123.181.80 0:0:0:0:0:ffff:637b:b550
99.123.181.81 0:0:0:0:0:ffff:637b:b551
99.123.181.82 0:0:0:0:0:ffff:637b:b552
99.123.181.83 0:0:0:0:0:ffff:637b:b553
99.123.181.84 0:0:0:0:0:ffff:637b:b554
99.123.181.85 0:0:0:0:0:ffff:637b:b555
99.123.181.86 0:0:0:0:0:ffff:637b:b556
99.123.181.87 0:0:0:0:0:ffff:637b:b557
99.123.181.88 0:0:0:0:0:ffff:637b:b558
99.123.181.89 0:0:0:0:0:ffff:637b:b559
99.123.181.90 0:0:0:0:0:ffff:637b:b55a
99.123.181.91 0:0:0:0:0:ffff:637b:b55b
99.123.181.92 0:0:0:0:0:ffff:637b:b55c
99.123.181.93 0:0:0:0:0:ffff:637b:b55d
99.123.181.94 0:0:0:0:0:ffff:637b:b55e
99.123.181.95 0:0:0:0:0:ffff:637b:b55f
99.123.181.96 0:0:0:0:0:ffff:637b:b560
99.123.181.97 0:0:0:0:0:ffff:637b:b561
99.123.181.98 0:0:0:0:0:ffff:637b:b562
99.123.181.99 0:0:0:0:0:ffff:637b:b563
99.123.181.100 0:0:0:0:0:ffff:637b:b564
99.123.181.101 0:0:0:0:0:ffff:637b:b565
99.123.181.102 0:0:0:0:0:ffff:637b:b566
99.123.181.103 0:0:0:0:0:ffff:637b:b567
99.123.181.104 0:0:0:0:0:ffff:637b:b568
99.123.181.105 0:0:0:0:0:ffff:637b:b569
99.123.181.106 0:0:0:0:0:ffff:637b:b56a
99.123.181.107 0:0:0:0:0:ffff:637b:b56b
99.123.181.108 0:0:0:0:0:ffff:637b:b56c
99.123.181.109 0:0:0:0:0:ffff:637b:b56d
99.123.181.110 0:0:0:0:0:ffff:637b:b56e
99.123.181.111 0:0:0:0:0:ffff:637b:b56f
99.123.181.112 0:0:0:0:0:ffff:637b:b570
99.123.181.113 0:0:0:0:0:ffff:637b:b571
99.123.181.114 0:0:0:0:0:ffff:637b:b572
99.123.181.115 0:0:0:0:0:ffff:637b:b573
99.123.181.116 0:0:0:0:0:ffff:637b:b574
99.123.181.117 0:0:0:0:0:ffff:637b:b575
99.123.181.118 0:0:0:0:0:ffff:637b:b576
99.123.181.119 0:0:0:0:0:ffff:637b:b577
99.123.181.120 0:0:0:0:0:ffff:637b:b578


99.123.181.121 0:0:0:0:0:ffff:637b:b579
99.123.181.122 0:0:0:0:0:ffff:637b:b57a
99.123.181.123 0:0:0:0:0:ffff:637b:b57b
99.123.181.124 0:0:0:0:0:ffff:637b:b57c
99.123.181.125 0:0:0:0:0:ffff:637b:b57d
99.123.181.126 0:0:0:0:0:ffff:637b:b57e
99.123.181.127 0:0:0:0:0:ffff:637b:b57f
99.123.181.128 0:0:0:0:0:ffff:637b:b580
99.123.181.129 0:0:0:0:0:ffff:637b:b581
99.123.181.130 0:0:0:0:0:ffff:637b:b582
99.123.181.131 0:0:0:0:0:ffff:637b:b583
99.123.181.132 0:0:0:0:0:ffff:637b:b584
99.123.181.133 0:0:0:0:0:ffff:637b:b585
99.123.181.134 0:0:0:0:0:ffff:637b:b586
99.123.181.135 0:0:0:0:0:ffff:637b:b587
99.123.181.136 0:0:0:0:0:ffff:637b:b588
99.123.181.137 0:0:0:0:0:ffff:637b:b589
99.123.181.138 0:0:0:0:0:ffff:637b:b58a
99.123.181.139 0:0:0:0:0:ffff:637b:b58b
99.123.181.140 0:0:0:0:0:ffff:637b:b58c
99.123.181.141 0:0:0:0:0:ffff:637b:b58d
99.123.181.142 0:0:0:0:0:ffff:637b:b58e
99.123.181.143 0:0:0:0:0:ffff:637b:b58f
99.123.181.144 0:0:0:0:0:ffff:637b:b590
99.123.181.145 0:0:0:0:0:ffff:637b:b591
99.123.181.146 0:0:0:0:0:ffff:637b:b592
99.123.181.147 0:0:0:0:0:ffff:637b:b593
99.123.181.148 0:0:0:0:0:ffff:637b:b594
99.123.181.149 0:0:0:0:0:ffff:637b:b595
99.123.181.150 0:0:0:0:0:ffff:637b:b596
99.123.181.151 0:0:0:0:0:ffff:637b:b597
99.123.181.152 0:0:0:0:0:ffff:637b:b598
99.123.181.153 0:0:0:0:0:ffff:637b:b599
99.123.181.154 0:0:0:0:0:ffff:637b:b59a
99.123.181.155 0:0:0:0:0:ffff:637b:b59b
99.123.181.156 0:0:0:0:0:ffff:637b:b59c
99.123.181.157 0:0:0:0:0:ffff:637b:b59d
99.123.181.158 0:0:0:0:0:ffff:637b:b59e
99.123.181.159 0:0:0:0:0:ffff:637b:b59f
99.123.181.160 0:0:0:0:0:ffff:637b:b5a0
99.123.181.161 0:0:0:0:0:ffff:637b:b5a1
99.123.181.162 0:0:0:0:0:ffff:637b:b5a2
99.123.181.163 0:0:0:0:0:ffff:637b:b5a3
99.123.181.164 0:0:0:0:0:ffff:637b:b5a4
99.123.181.165 0:0:0:0:0:ffff:637b:b5a5
99.123.181.166 0:0:0:0:0:ffff:637b:b5a6
99.123.181.167 0:0:0:0:0:ffff:637b:b5a7
99.123.181.168 0:0:0:0:0:ffff:637b:b5a8
99.123.181.169 0:0:0:0:0:ffff:637b:b5a9
99.123.181.170 0:0:0:0:0:ffff:637b:b5aa
99.123.181.171 0:0:0:0:0:ffff:637b:b5ab
99.123.181.172 0:0:0:0:0:ffff:637b:b5ac
99.123.181.173 0:0:0:0:0:ffff:637b:b5ad
99.123.181.174 0:0:0:0:0:ffff:637b:b5ae
99.123.181.175 0:0:0:0:0:ffff:637b:b5af
99.123.181.176 0:0:0:0:0:ffff:637b:b5b0
99.123.181.177 0:0:0:0:0:ffff:637b:b5b1
99.123.181.178 0:0:0:0:0:ffff:637b:b5b2
99.123.181.179 0:0:0:0:0:ffff:637b:b5b3
99.123.181.180 0:0:0:0:0:ffff:637b:b5b4


99.123.181.181 0:0:0:0:0:ffff:637b:b5b5
99.123.181.182 0:0:0:0:0:ffff:637b:b5b6
99.123.181.183 0:0:0:0:0:ffff:637b:b5b7
99.123.181.184 0:0:0:0:0:ffff:637b:b5b8
99.123.181.185 0:0:0:0:0:ffff:637b:b5b9
99.123.181.186 0:0:0:0:0:ffff:637b:b5ba
99.123.181.187 0:0:0:0:0:ffff:637b:b5bb
99.123.181.188 0:0:0:0:0:ffff:637b:b5bc
99.123.181.189 0:0:0:0:0:ffff:637b:b5bd
99.123.181.190 0:0:0:0:0:ffff:637b:b5be
99.123.181.191 0:0:0:0:0:ffff:637b:b5bf
99.123.181.192 0:0:0:0:0:ffff:637b:b5c0
99.123.181.193 0:0:0:0:0:ffff:637b:b5c1
99.123.181.194 0:0:0:0:0:ffff:637b:b5c2
99.123.181.195 0:0:0:0:0:ffff:637b:b5c3
99.123.181.196 0:0:0:0:0:ffff:637b:b5c4
99.123.181.197 0:0:0:0:0:ffff:637b:b5c5
99.123.181.198 0:0:0:0:0:ffff:637b:b5c6
99.123.181.199 0:0:0:0:0:ffff:637b:b5c7
99.123.181.200 0:0:0:0:0:ffff:637b:b5c8
99.123.181.201 0:0:0:0:0:ffff:637b:b5c9
99.123.181.202 0:0:0:0:0:ffff:637b:b5ca
99.123.181.203 0:0:0:0:0:ffff:637b:b5cb
99.123.181.204 0:0:0:0:0:ffff:637b:b5cc
99.123.181.205 0:0:0:0:0:ffff:637b:b5cd
99.123.181.206 0:0:0:0:0:ffff:637b:b5ce
99.123.181.207 0:0:0:0:0:ffff:637b:b5cf
99.123.181.208 0:0:0:0:0:ffff:637b:b5d0
99.123.181.209 0:0:0:0:0:ffff:637b:b5d1
99.123.181.210 0:0:0:0:0:ffff:637b:b5d2
99.123.181.211 0:0:0:0:0:ffff:637b:b5d3
99.123.181.212 0:0:0:0:0:ffff:637b:b5d4
99.123.181.213 0:0:0:0:0:ffff:637b:b5d5
99.123.181.214 0:0:0:0:0:ffff:637b:b5d6
99.123.181.215 0:0:0:0:0:ffff:637b:b5d7
99.123.181.216 0:0:0:0:0:ffff:637b:b5d8
99.123.181.217 0:0:0:0:0:ffff:637b:b5d9
99.123.181.218 0:0:0:0:0:ffff:637b:b5da
99.123.181.219 0:0:0:0:0:ffff:637b:b5db
99.123.181.220 0:0:0:0:0:ffff:637b:b5dc
99.123.181.221 0:0:0:0:0:ffff:637b:b5dd
99.123.181.222 0:0:0:0:0:ffff:637b:b5de
99.123.181.223 0:0:0:0:0:ffff:637b:b5df
99.123.181.224 0:0:0:0:0:ffff:637b:b5e0
99.123.181.225 0:0:0:0:0:ffff:637b:b5e1
99.123.181.226 0:0:0:0:0:ffff:637b:b5e2
99.123.181.227 0:0:0:0:0:ffff:637b:b5e3
99.123.181.228 0:0:0:0:0:ffff:637b:b5e4
99.123.181.229 0:0:0:0:0:ffff:637b:b5e5
99.123.181.230 0:0:0:0:0:ffff:637b:b5e6
99.123.181.231 0:0:0:0:0:ffff:637b:b5e7
99.123.181.232 0:0:0:0:0:ffff:637b:b5e8
99.123.181.233 0:0:0:0:0:ffff:637b:b5e9
99.123.181.234 0:0:0:0:0:ffff:637b:b5ea
99.123.181.235 0:0:0:0:0:ffff:637b:b5eb
99.123.181.236 0:0:0:0:0:ffff:637b:b5ec
99.123.181.237 0:0:0:0:0:ffff:637b:b5ed
99.123.181.238 0:0:0:0:0:ffff:637b:b5ee
99.123.181.239 0:0:0:0:0:ffff:637b:b5ef
99.123.181.240 0:0:0:0:0:ffff:637b:b5f0
99.123.181.241 0:0:0:0:0:ffff:637b:b5f1
99.123.181.242 0:0:0:0:0:ffff:637b:b5f2
99.123.181.243 0:0:0:0:0:ffff:637b:b5f3
99.123.181.244 0:0:0:0:0:ffff:637b:b5f4
99.123.181.245 0:0:0:0:0:ffff:637b:b5f5
99.123.181.246 0:0:0:0:0:ffff:637b:b5f6
99.123.181.247 0:0:0:0:0:ffff:637b:b5f7
99.123.181.248 0:0:0:0:0:ffff:637b:b5f8
99.123.181.249 0:0:0:0:0:ffff:637b:b5f9
99.123.181.250 0:0:0:0:0:ffff:637b:b5fa
99.123.181.251 0:0:0:0:0:ffff:637b:b5fb
99.123.181.252 0:0:0:0:0:ffff:637b:b5fc
99.123.181.253 0:0:0:0:0:ffff:637b:b5fd
99.123.181.254 0:0:0:0:0:ffff:637b:b5fe
99.123.181.255 0:0:0:0:0:ffff:637b: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.