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
203.153.245.1 0:0:0:0:0:ffff:cb99:f501
203.153.245.2 0:0:0:0:0:ffff:cb99:f502
203.153.245.3 0:0:0:0:0:ffff:cb99:f503
203.153.245.4 0:0:0:0:0:ffff:cb99:f504
203.153.245.5 0:0:0:0:0:ffff:cb99:f505
203.153.245.6 0:0:0:0:0:ffff:cb99:f506
203.153.245.7 0:0:0:0:0:ffff:cb99:f507
203.153.245.8 0:0:0:0:0:ffff:cb99:f508
203.153.245.9 0:0:0:0:0:ffff:cb99:f509
203.153.245.10 0:0:0:0:0:ffff:cb99:f50a
203.153.245.11 0:0:0:0:0:ffff:cb99:f50b
203.153.245.12 0:0:0:0:0:ffff:cb99:f50c
203.153.245.13 0:0:0:0:0:ffff:cb99:f50d
203.153.245.14 0:0:0:0:0:ffff:cb99:f50e
203.153.245.15 0:0:0:0:0:ffff:cb99:f50f
203.153.245.16 0:0:0:0:0:ffff:cb99:f510
203.153.245.17 0:0:0:0:0:ffff:cb99:f511
203.153.245.18 0:0:0:0:0:ffff:cb99:f512
203.153.245.19 0:0:0:0:0:ffff:cb99:f513
203.153.245.20 0:0:0:0:0:ffff:cb99:f514
203.153.245.21 0:0:0:0:0:ffff:cb99:f515
203.153.245.22 0:0:0:0:0:ffff:cb99:f516
203.153.245.23 0:0:0:0:0:ffff:cb99:f517
203.153.245.24 0:0:0:0:0:ffff:cb99:f518
203.153.245.25 0:0:0:0:0:ffff:cb99:f519
203.153.245.26 0:0:0:0:0:ffff:cb99:f51a
203.153.245.27 0:0:0:0:0:ffff:cb99:f51b
203.153.245.28 0:0:0:0:0:ffff:cb99:f51c
203.153.245.29 0:0:0:0:0:ffff:cb99:f51d
203.153.245.30 0:0:0:0:0:ffff:cb99:f51e
203.153.245.31 0:0:0:0:0:ffff:cb99:f51f
203.153.245.32 0:0:0:0:0:ffff:cb99:f520
203.153.245.33 0:0:0:0:0:ffff:cb99:f521
203.153.245.34 0:0:0:0:0:ffff:cb99:f522
203.153.245.35 0:0:0:0:0:ffff:cb99:f523
203.153.245.36 0:0:0:0:0:ffff:cb99:f524
203.153.245.37 0:0:0:0:0:ffff:cb99:f525
203.153.245.38 0:0:0:0:0:ffff:cb99:f526
203.153.245.39 0:0:0:0:0:ffff:cb99:f527
203.153.245.40 0:0:0:0:0:ffff:cb99:f528
203.153.245.41 0:0:0:0:0:ffff:cb99:f529
203.153.245.42 0:0:0:0:0:ffff:cb99:f52a
203.153.245.43 0:0:0:0:0:ffff:cb99:f52b
203.153.245.44 0:0:0:0:0:ffff:cb99:f52c
203.153.245.45 0:0:0:0:0:ffff:cb99:f52d
203.153.245.46 0:0:0:0:0:ffff:cb99:f52e
203.153.245.47 0:0:0:0:0:ffff:cb99:f52f
203.153.245.48 0:0:0:0:0:ffff:cb99:f530
203.153.245.49 0:0:0:0:0:ffff:cb99:f531
203.153.245.50 0:0:0:0:0:ffff:cb99:f532
203.153.245.51 0:0:0:0:0:ffff:cb99:f533
203.153.245.52 0:0:0:0:0:ffff:cb99:f534
203.153.245.53 0:0:0:0:0:ffff:cb99:f535
203.153.245.54 0:0:0:0:0:ffff:cb99:f536
203.153.245.55 0:0:0:0:0:ffff:cb99:f537
203.153.245.56 0:0:0:0:0:ffff:cb99:f538
203.153.245.57 0:0:0:0:0:ffff:cb99:f539
203.153.245.58 0:0:0:0:0:ffff:cb99:f53a
203.153.245.59 0:0:0:0:0:ffff:cb99:f53b
203.153.245.60 0:0:0:0:0:ffff:cb99:f53c


203.153.245.61 0:0:0:0:0:ffff:cb99:f53d
203.153.245.62 0:0:0:0:0:ffff:cb99:f53e
203.153.245.63 0:0:0:0:0:ffff:cb99:f53f
203.153.245.64 0:0:0:0:0:ffff:cb99:f540
203.153.245.65 0:0:0:0:0:ffff:cb99:f541
203.153.245.66 0:0:0:0:0:ffff:cb99:f542
203.153.245.67 0:0:0:0:0:ffff:cb99:f543
203.153.245.68 0:0:0:0:0:ffff:cb99:f544
203.153.245.69 0:0:0:0:0:ffff:cb99:f545
203.153.245.70 0:0:0:0:0:ffff:cb99:f546
203.153.245.71 0:0:0:0:0:ffff:cb99:f547
203.153.245.72 0:0:0:0:0:ffff:cb99:f548
203.153.245.73 0:0:0:0:0:ffff:cb99:f549
203.153.245.74 0:0:0:0:0:ffff:cb99:f54a
203.153.245.75 0:0:0:0:0:ffff:cb99:f54b
203.153.245.76 0:0:0:0:0:ffff:cb99:f54c
203.153.245.77 0:0:0:0:0:ffff:cb99:f54d
203.153.245.78 0:0:0:0:0:ffff:cb99:f54e
203.153.245.79 0:0:0:0:0:ffff:cb99:f54f
203.153.245.80 0:0:0:0:0:ffff:cb99:f550
203.153.245.81 0:0:0:0:0:ffff:cb99:f551
203.153.245.82 0:0:0:0:0:ffff:cb99:f552
203.153.245.83 0:0:0:0:0:ffff:cb99:f553
203.153.245.84 0:0:0:0:0:ffff:cb99:f554
203.153.245.85 0:0:0:0:0:ffff:cb99:f555
203.153.245.86 0:0:0:0:0:ffff:cb99:f556
203.153.245.87 0:0:0:0:0:ffff:cb99:f557
203.153.245.88 0:0:0:0:0:ffff:cb99:f558
203.153.245.89 0:0:0:0:0:ffff:cb99:f559
203.153.245.90 0:0:0:0:0:ffff:cb99:f55a
203.153.245.91 0:0:0:0:0:ffff:cb99:f55b
203.153.245.92 0:0:0:0:0:ffff:cb99:f55c
203.153.245.93 0:0:0:0:0:ffff:cb99:f55d
203.153.245.94 0:0:0:0:0:ffff:cb99:f55e
203.153.245.95 0:0:0:0:0:ffff:cb99:f55f
203.153.245.96 0:0:0:0:0:ffff:cb99:f560
203.153.245.97 0:0:0:0:0:ffff:cb99:f561
203.153.245.98 0:0:0:0:0:ffff:cb99:f562
203.153.245.99 0:0:0:0:0:ffff:cb99:f563
203.153.245.100 0:0:0:0:0:ffff:cb99:f564
203.153.245.101 0:0:0:0:0:ffff:cb99:f565
203.153.245.102 0:0:0:0:0:ffff:cb99:f566
203.153.245.103 0:0:0:0:0:ffff:cb99:f567
203.153.245.104 0:0:0:0:0:ffff:cb99:f568
203.153.245.105 0:0:0:0:0:ffff:cb99:f569
203.153.245.106 0:0:0:0:0:ffff:cb99:f56a
203.153.245.107 0:0:0:0:0:ffff:cb99:f56b
203.153.245.108 0:0:0:0:0:ffff:cb99:f56c
203.153.245.109 0:0:0:0:0:ffff:cb99:f56d
203.153.245.110 0:0:0:0:0:ffff:cb99:f56e
203.153.245.111 0:0:0:0:0:ffff:cb99:f56f
203.153.245.112 0:0:0:0:0:ffff:cb99:f570
203.153.245.113 0:0:0:0:0:ffff:cb99:f571
203.153.245.114 0:0:0:0:0:ffff:cb99:f572
203.153.245.115 0:0:0:0:0:ffff:cb99:f573
203.153.245.116 0:0:0:0:0:ffff:cb99:f574
203.153.245.117 0:0:0:0:0:ffff:cb99:f575
203.153.245.118 0:0:0:0:0:ffff:cb99:f576
203.153.245.119 0:0:0:0:0:ffff:cb99:f577
203.153.245.120 0:0:0:0:0:ffff:cb99:f578


203.153.245.121 0:0:0:0:0:ffff:cb99:f579
203.153.245.122 0:0:0:0:0:ffff:cb99:f57a
203.153.245.123 0:0:0:0:0:ffff:cb99:f57b
203.153.245.124 0:0:0:0:0:ffff:cb99:f57c
203.153.245.125 0:0:0:0:0:ffff:cb99:f57d
203.153.245.126 0:0:0:0:0:ffff:cb99:f57e
203.153.245.127 0:0:0:0:0:ffff:cb99:f57f
203.153.245.128 0:0:0:0:0:ffff:cb99:f580
203.153.245.129 0:0:0:0:0:ffff:cb99:f581
203.153.245.130 0:0:0:0:0:ffff:cb99:f582
203.153.245.131 0:0:0:0:0:ffff:cb99:f583
203.153.245.132 0:0:0:0:0:ffff:cb99:f584
203.153.245.133 0:0:0:0:0:ffff:cb99:f585
203.153.245.134 0:0:0:0:0:ffff:cb99:f586
203.153.245.135 0:0:0:0:0:ffff:cb99:f587
203.153.245.136 0:0:0:0:0:ffff:cb99:f588
203.153.245.137 0:0:0:0:0:ffff:cb99:f589
203.153.245.138 0:0:0:0:0:ffff:cb99:f58a
203.153.245.139 0:0:0:0:0:ffff:cb99:f58b
203.153.245.140 0:0:0:0:0:ffff:cb99:f58c
203.153.245.141 0:0:0:0:0:ffff:cb99:f58d
203.153.245.142 0:0:0:0:0:ffff:cb99:f58e
203.153.245.143 0:0:0:0:0:ffff:cb99:f58f
203.153.245.144 0:0:0:0:0:ffff:cb99:f590
203.153.245.145 0:0:0:0:0:ffff:cb99:f591
203.153.245.146 0:0:0:0:0:ffff:cb99:f592
203.153.245.147 0:0:0:0:0:ffff:cb99:f593
203.153.245.148 0:0:0:0:0:ffff:cb99:f594
203.153.245.149 0:0:0:0:0:ffff:cb99:f595
203.153.245.150 0:0:0:0:0:ffff:cb99:f596
203.153.245.151 0:0:0:0:0:ffff:cb99:f597
203.153.245.152 0:0:0:0:0:ffff:cb99:f598
203.153.245.153 0:0:0:0:0:ffff:cb99:f599
203.153.245.154 0:0:0:0:0:ffff:cb99:f59a
203.153.245.155 0:0:0:0:0:ffff:cb99:f59b
203.153.245.156 0:0:0:0:0:ffff:cb99:f59c
203.153.245.157 0:0:0:0:0:ffff:cb99:f59d
203.153.245.158 0:0:0:0:0:ffff:cb99:f59e
203.153.245.159 0:0:0:0:0:ffff:cb99:f59f
203.153.245.160 0:0:0:0:0:ffff:cb99:f5a0
203.153.245.161 0:0:0:0:0:ffff:cb99:f5a1
203.153.245.162 0:0:0:0:0:ffff:cb99:f5a2
203.153.245.163 0:0:0:0:0:ffff:cb99:f5a3
203.153.245.164 0:0:0:0:0:ffff:cb99:f5a4
203.153.245.165 0:0:0:0:0:ffff:cb99:f5a5
203.153.245.166 0:0:0:0:0:ffff:cb99:f5a6
203.153.245.167 0:0:0:0:0:ffff:cb99:f5a7
203.153.245.168 0:0:0:0:0:ffff:cb99:f5a8
203.153.245.169 0:0:0:0:0:ffff:cb99:f5a9
203.153.245.170 0:0:0:0:0:ffff:cb99:f5aa
203.153.245.171 0:0:0:0:0:ffff:cb99:f5ab
203.153.245.172 0:0:0:0:0:ffff:cb99:f5ac
203.153.245.173 0:0:0:0:0:ffff:cb99:f5ad
203.153.245.174 0:0:0:0:0:ffff:cb99:f5ae
203.153.245.175 0:0:0:0:0:ffff:cb99:f5af
203.153.245.176 0:0:0:0:0:ffff:cb99:f5b0
203.153.245.177 0:0:0:0:0:ffff:cb99:f5b1
203.153.245.178 0:0:0:0:0:ffff:cb99:f5b2
203.153.245.179 0:0:0:0:0:ffff:cb99:f5b3
203.153.245.180 0:0:0:0:0:ffff:cb99:f5b4


203.153.245.181 0:0:0:0:0:ffff:cb99:f5b5
203.153.245.182 0:0:0:0:0:ffff:cb99:f5b6
203.153.245.183 0:0:0:0:0:ffff:cb99:f5b7
203.153.245.184 0:0:0:0:0:ffff:cb99:f5b8
203.153.245.185 0:0:0:0:0:ffff:cb99:f5b9
203.153.245.186 0:0:0:0:0:ffff:cb99:f5ba
203.153.245.187 0:0:0:0:0:ffff:cb99:f5bb
203.153.245.188 0:0:0:0:0:ffff:cb99:f5bc
203.153.245.189 0:0:0:0:0:ffff:cb99:f5bd
203.153.245.190 0:0:0:0:0:ffff:cb99:f5be
203.153.245.191 0:0:0:0:0:ffff:cb99:f5bf
203.153.245.192 0:0:0:0:0:ffff:cb99:f5c0
203.153.245.193 0:0:0:0:0:ffff:cb99:f5c1
203.153.245.194 0:0:0:0:0:ffff:cb99:f5c2
203.153.245.195 0:0:0:0:0:ffff:cb99:f5c3
203.153.245.196 0:0:0:0:0:ffff:cb99:f5c4
203.153.245.197 0:0:0:0:0:ffff:cb99:f5c5
203.153.245.198 0:0:0:0:0:ffff:cb99:f5c6
203.153.245.199 0:0:0:0:0:ffff:cb99:f5c7
203.153.245.200 0:0:0:0:0:ffff:cb99:f5c8
203.153.245.201 0:0:0:0:0:ffff:cb99:f5c9
203.153.245.202 0:0:0:0:0:ffff:cb99:f5ca
203.153.245.203 0:0:0:0:0:ffff:cb99:f5cb
203.153.245.204 0:0:0:0:0:ffff:cb99:f5cc
203.153.245.205 0:0:0:0:0:ffff:cb99:f5cd
203.153.245.206 0:0:0:0:0:ffff:cb99:f5ce
203.153.245.207 0:0:0:0:0:ffff:cb99:f5cf
203.153.245.208 0:0:0:0:0:ffff:cb99:f5d0
203.153.245.209 0:0:0:0:0:ffff:cb99:f5d1
203.153.245.210 0:0:0:0:0:ffff:cb99:f5d2
203.153.245.211 0:0:0:0:0:ffff:cb99:f5d3
203.153.245.212 0:0:0:0:0:ffff:cb99:f5d4
203.153.245.213 0:0:0:0:0:ffff:cb99:f5d5
203.153.245.214 0:0:0:0:0:ffff:cb99:f5d6
203.153.245.215 0:0:0:0:0:ffff:cb99:f5d7
203.153.245.216 0:0:0:0:0:ffff:cb99:f5d8
203.153.245.217 0:0:0:0:0:ffff:cb99:f5d9
203.153.245.218 0:0:0:0:0:ffff:cb99:f5da
203.153.245.219 0:0:0:0:0:ffff:cb99:f5db
203.153.245.220 0:0:0:0:0:ffff:cb99:f5dc
203.153.245.221 0:0:0:0:0:ffff:cb99:f5dd
203.153.245.222 0:0:0:0:0:ffff:cb99:f5de
203.153.245.223 0:0:0:0:0:ffff:cb99:f5df
203.153.245.224 0:0:0:0:0:ffff:cb99:f5e0
203.153.245.225 0:0:0:0:0:ffff:cb99:f5e1
203.153.245.226 0:0:0:0:0:ffff:cb99:f5e2
203.153.245.227 0:0:0:0:0:ffff:cb99:f5e3
203.153.245.228 0:0:0:0:0:ffff:cb99:f5e4
203.153.245.229 0:0:0:0:0:ffff:cb99:f5e5
203.153.245.230 0:0:0:0:0:ffff:cb99:f5e6
203.153.245.231 0:0:0:0:0:ffff:cb99:f5e7
203.153.245.232 0:0:0:0:0:ffff:cb99:f5e8
203.153.245.233 0:0:0:0:0:ffff:cb99:f5e9
203.153.245.234 0:0:0:0:0:ffff:cb99:f5ea
203.153.245.235 0:0:0:0:0:ffff:cb99:f5eb
203.153.245.236 0:0:0:0:0:ffff:cb99:f5ec
203.153.245.237 0:0:0:0:0:ffff:cb99:f5ed
203.153.245.238 0:0:0:0:0:ffff:cb99:f5ee
203.153.245.239 0:0:0:0:0:ffff:cb99:f5ef
203.153.245.240 0:0:0:0:0:ffff:cb99:f5f0
203.153.245.241 0:0:0:0:0:ffff:cb99:f5f1
203.153.245.242 0:0:0:0:0:ffff:cb99:f5f2
203.153.245.243 0:0:0:0:0:ffff:cb99:f5f3
203.153.245.244 0:0:0:0:0:ffff:cb99:f5f4
203.153.245.245 0:0:0:0:0:ffff:cb99:f5f5
203.153.245.246 0:0:0:0:0:ffff:cb99:f5f6
203.153.245.247 0:0:0:0:0:ffff:cb99:f5f7
203.153.245.248 0:0:0:0:0:ffff:cb99:f5f8
203.153.245.249 0:0:0:0:0:ffff:cb99:f5f9
203.153.245.250 0:0:0:0:0:ffff:cb99:f5fa
203.153.245.251 0:0:0:0:0:ffff:cb99:f5fb
203.153.245.252 0:0:0:0:0:ffff:cb99:f5fc
203.153.245.253 0:0:0:0:0:ffff:cb99:f5fd
203.153.245.254 0:0:0:0:0:ffff:cb99:f5fe
203.153.245.255 0:0:0:0:0:ffff:cb99:f5ff


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.