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
203.153.165.1 0:0:0:0:0:ffff:cb99:a501
203.153.165.2 0:0:0:0:0:ffff:cb99:a502
203.153.165.3 0:0:0:0:0:ffff:cb99:a503
203.153.165.4 0:0:0:0:0:ffff:cb99:a504
203.153.165.5 0:0:0:0:0:ffff:cb99:a505
203.153.165.6 0:0:0:0:0:ffff:cb99:a506
203.153.165.7 0:0:0:0:0:ffff:cb99:a507
203.153.165.8 0:0:0:0:0:ffff:cb99:a508
203.153.165.9 0:0:0:0:0:ffff:cb99:a509
203.153.165.10 0:0:0:0:0:ffff:cb99:a50a
203.153.165.11 0:0:0:0:0:ffff:cb99:a50b
203.153.165.12 0:0:0:0:0:ffff:cb99:a50c
203.153.165.13 0:0:0:0:0:ffff:cb99:a50d
203.153.165.14 0:0:0:0:0:ffff:cb99:a50e
203.153.165.15 0:0:0:0:0:ffff:cb99:a50f
203.153.165.16 0:0:0:0:0:ffff:cb99:a510
203.153.165.17 0:0:0:0:0:ffff:cb99:a511
203.153.165.18 0:0:0:0:0:ffff:cb99:a512
203.153.165.19 0:0:0:0:0:ffff:cb99:a513
203.153.165.20 0:0:0:0:0:ffff:cb99:a514
203.153.165.21 0:0:0:0:0:ffff:cb99:a515
203.153.165.22 0:0:0:0:0:ffff:cb99:a516
203.153.165.23 0:0:0:0:0:ffff:cb99:a517
203.153.165.24 0:0:0:0:0:ffff:cb99:a518
203.153.165.25 0:0:0:0:0:ffff:cb99:a519
203.153.165.26 0:0:0:0:0:ffff:cb99:a51a
203.153.165.27 0:0:0:0:0:ffff:cb99:a51b
203.153.165.28 0:0:0:0:0:ffff:cb99:a51c
203.153.165.29 0:0:0:0:0:ffff:cb99:a51d
203.153.165.30 0:0:0:0:0:ffff:cb99:a51e
203.153.165.31 0:0:0:0:0:ffff:cb99:a51f
203.153.165.32 0:0:0:0:0:ffff:cb99:a520
203.153.165.33 0:0:0:0:0:ffff:cb99:a521
203.153.165.34 0:0:0:0:0:ffff:cb99:a522
203.153.165.35 0:0:0:0:0:ffff:cb99:a523
203.153.165.36 0:0:0:0:0:ffff:cb99:a524
203.153.165.37 0:0:0:0:0:ffff:cb99:a525
203.153.165.38 0:0:0:0:0:ffff:cb99:a526
203.153.165.39 0:0:0:0:0:ffff:cb99:a527
203.153.165.40 0:0:0:0:0:ffff:cb99:a528
203.153.165.41 0:0:0:0:0:ffff:cb99:a529
203.153.165.42 0:0:0:0:0:ffff:cb99:a52a
203.153.165.43 0:0:0:0:0:ffff:cb99:a52b
203.153.165.44 0:0:0:0:0:ffff:cb99:a52c
203.153.165.45 0:0:0:0:0:ffff:cb99:a52d
203.153.165.46 0:0:0:0:0:ffff:cb99:a52e
203.153.165.47 0:0:0:0:0:ffff:cb99:a52f
203.153.165.48 0:0:0:0:0:ffff:cb99:a530
203.153.165.49 0:0:0:0:0:ffff:cb99:a531
203.153.165.50 0:0:0:0:0:ffff:cb99:a532
203.153.165.51 0:0:0:0:0:ffff:cb99:a533
203.153.165.52 0:0:0:0:0:ffff:cb99:a534
203.153.165.53 0:0:0:0:0:ffff:cb99:a535
203.153.165.54 0:0:0:0:0:ffff:cb99:a536
203.153.165.55 0:0:0:0:0:ffff:cb99:a537
203.153.165.56 0:0:0:0:0:ffff:cb99:a538
203.153.165.57 0:0:0:0:0:ffff:cb99:a539
203.153.165.58 0:0:0:0:0:ffff:cb99:a53a
203.153.165.59 0:0:0:0:0:ffff:cb99:a53b
203.153.165.60 0:0:0:0:0:ffff:cb99:a53c


203.153.165.61 0:0:0:0:0:ffff:cb99:a53d
203.153.165.62 0:0:0:0:0:ffff:cb99:a53e
203.153.165.63 0:0:0:0:0:ffff:cb99:a53f
203.153.165.64 0:0:0:0:0:ffff:cb99:a540
203.153.165.65 0:0:0:0:0:ffff:cb99:a541
203.153.165.66 0:0:0:0:0:ffff:cb99:a542
203.153.165.67 0:0:0:0:0:ffff:cb99:a543
203.153.165.68 0:0:0:0:0:ffff:cb99:a544
203.153.165.69 0:0:0:0:0:ffff:cb99:a545
203.153.165.70 0:0:0:0:0:ffff:cb99:a546
203.153.165.71 0:0:0:0:0:ffff:cb99:a547
203.153.165.72 0:0:0:0:0:ffff:cb99:a548
203.153.165.73 0:0:0:0:0:ffff:cb99:a549
203.153.165.74 0:0:0:0:0:ffff:cb99:a54a
203.153.165.75 0:0:0:0:0:ffff:cb99:a54b
203.153.165.76 0:0:0:0:0:ffff:cb99:a54c
203.153.165.77 0:0:0:0:0:ffff:cb99:a54d
203.153.165.78 0:0:0:0:0:ffff:cb99:a54e
203.153.165.79 0:0:0:0:0:ffff:cb99:a54f
203.153.165.80 0:0:0:0:0:ffff:cb99:a550
203.153.165.81 0:0:0:0:0:ffff:cb99:a551
203.153.165.82 0:0:0:0:0:ffff:cb99:a552
203.153.165.83 0:0:0:0:0:ffff:cb99:a553
203.153.165.84 0:0:0:0:0:ffff:cb99:a554
203.153.165.85 0:0:0:0:0:ffff:cb99:a555
203.153.165.86 0:0:0:0:0:ffff:cb99:a556
203.153.165.87 0:0:0:0:0:ffff:cb99:a557
203.153.165.88 0:0:0:0:0:ffff:cb99:a558
203.153.165.89 0:0:0:0:0:ffff:cb99:a559
203.153.165.90 0:0:0:0:0:ffff:cb99:a55a
203.153.165.91 0:0:0:0:0:ffff:cb99:a55b
203.153.165.92 0:0:0:0:0:ffff:cb99:a55c
203.153.165.93 0:0:0:0:0:ffff:cb99:a55d
203.153.165.94 0:0:0:0:0:ffff:cb99:a55e
203.153.165.95 0:0:0:0:0:ffff:cb99:a55f
203.153.165.96 0:0:0:0:0:ffff:cb99:a560
203.153.165.97 0:0:0:0:0:ffff:cb99:a561
203.153.165.98 0:0:0:0:0:ffff:cb99:a562
203.153.165.99 0:0:0:0:0:ffff:cb99:a563
203.153.165.100 0:0:0:0:0:ffff:cb99:a564
203.153.165.101 0:0:0:0:0:ffff:cb99:a565
203.153.165.102 0:0:0:0:0:ffff:cb99:a566
203.153.165.103 0:0:0:0:0:ffff:cb99:a567
203.153.165.104 0:0:0:0:0:ffff:cb99:a568
203.153.165.105 0:0:0:0:0:ffff:cb99:a569
203.153.165.106 0:0:0:0:0:ffff:cb99:a56a
203.153.165.107 0:0:0:0:0:ffff:cb99:a56b
203.153.165.108 0:0:0:0:0:ffff:cb99:a56c
203.153.165.109 0:0:0:0:0:ffff:cb99:a56d
203.153.165.110 0:0:0:0:0:ffff:cb99:a56e
203.153.165.111 0:0:0:0:0:ffff:cb99:a56f
203.153.165.112 0:0:0:0:0:ffff:cb99:a570
203.153.165.113 0:0:0:0:0:ffff:cb99:a571
203.153.165.114 0:0:0:0:0:ffff:cb99:a572
203.153.165.115 0:0:0:0:0:ffff:cb99:a573
203.153.165.116 0:0:0:0:0:ffff:cb99:a574
203.153.165.117 0:0:0:0:0:ffff:cb99:a575
203.153.165.118 0:0:0:0:0:ffff:cb99:a576
203.153.165.119 0:0:0:0:0:ffff:cb99:a577
203.153.165.120 0:0:0:0:0:ffff:cb99:a578


203.153.165.121 0:0:0:0:0:ffff:cb99:a579
203.153.165.122 0:0:0:0:0:ffff:cb99:a57a
203.153.165.123 0:0:0:0:0:ffff:cb99:a57b
203.153.165.124 0:0:0:0:0:ffff:cb99:a57c
203.153.165.125 0:0:0:0:0:ffff:cb99:a57d
203.153.165.126 0:0:0:0:0:ffff:cb99:a57e
203.153.165.127 0:0:0:0:0:ffff:cb99:a57f
203.153.165.128 0:0:0:0:0:ffff:cb99:a580
203.153.165.129 0:0:0:0:0:ffff:cb99:a581
203.153.165.130 0:0:0:0:0:ffff:cb99:a582
203.153.165.131 0:0:0:0:0:ffff:cb99:a583
203.153.165.132 0:0:0:0:0:ffff:cb99:a584
203.153.165.133 0:0:0:0:0:ffff:cb99:a585
203.153.165.134 0:0:0:0:0:ffff:cb99:a586
203.153.165.135 0:0:0:0:0:ffff:cb99:a587
203.153.165.136 0:0:0:0:0:ffff:cb99:a588
203.153.165.137 0:0:0:0:0:ffff:cb99:a589
203.153.165.138 0:0:0:0:0:ffff:cb99:a58a
203.153.165.139 0:0:0:0:0:ffff:cb99:a58b
203.153.165.140 0:0:0:0:0:ffff:cb99:a58c
203.153.165.141 0:0:0:0:0:ffff:cb99:a58d
203.153.165.142 0:0:0:0:0:ffff:cb99:a58e
203.153.165.143 0:0:0:0:0:ffff:cb99:a58f
203.153.165.144 0:0:0:0:0:ffff:cb99:a590
203.153.165.145 0:0:0:0:0:ffff:cb99:a591
203.153.165.146 0:0:0:0:0:ffff:cb99:a592
203.153.165.147 0:0:0:0:0:ffff:cb99:a593
203.153.165.148 0:0:0:0:0:ffff:cb99:a594
203.153.165.149 0:0:0:0:0:ffff:cb99:a595
203.153.165.150 0:0:0:0:0:ffff:cb99:a596
203.153.165.151 0:0:0:0:0:ffff:cb99:a597
203.153.165.152 0:0:0:0:0:ffff:cb99:a598
203.153.165.153 0:0:0:0:0:ffff:cb99:a599
203.153.165.154 0:0:0:0:0:ffff:cb99:a59a
203.153.165.155 0:0:0:0:0:ffff:cb99:a59b
203.153.165.156 0:0:0:0:0:ffff:cb99:a59c
203.153.165.157 0:0:0:0:0:ffff:cb99:a59d
203.153.165.158 0:0:0:0:0:ffff:cb99:a59e
203.153.165.159 0:0:0:0:0:ffff:cb99:a59f
203.153.165.160 0:0:0:0:0:ffff:cb99:a5a0
203.153.165.161 0:0:0:0:0:ffff:cb99:a5a1
203.153.165.162 0:0:0:0:0:ffff:cb99:a5a2
203.153.165.163 0:0:0:0:0:ffff:cb99:a5a3
203.153.165.164 0:0:0:0:0:ffff:cb99:a5a4
203.153.165.165 0:0:0:0:0:ffff:cb99:a5a5
203.153.165.166 0:0:0:0:0:ffff:cb99:a5a6
203.153.165.167 0:0:0:0:0:ffff:cb99:a5a7
203.153.165.168 0:0:0:0:0:ffff:cb99:a5a8
203.153.165.169 0:0:0:0:0:ffff:cb99:a5a9
203.153.165.170 0:0:0:0:0:ffff:cb99:a5aa
203.153.165.171 0:0:0:0:0:ffff:cb99:a5ab
203.153.165.172 0:0:0:0:0:ffff:cb99:a5ac
203.153.165.173 0:0:0:0:0:ffff:cb99:a5ad
203.153.165.174 0:0:0:0:0:ffff:cb99:a5ae
203.153.165.175 0:0:0:0:0:ffff:cb99:a5af
203.153.165.176 0:0:0:0:0:ffff:cb99:a5b0
203.153.165.177 0:0:0:0:0:ffff:cb99:a5b1
203.153.165.178 0:0:0:0:0:ffff:cb99:a5b2
203.153.165.179 0:0:0:0:0:ffff:cb99:a5b3
203.153.165.180 0:0:0:0:0:ffff:cb99:a5b4


203.153.165.181 0:0:0:0:0:ffff:cb99:a5b5
203.153.165.182 0:0:0:0:0:ffff:cb99:a5b6
203.153.165.183 0:0:0:0:0:ffff:cb99:a5b7
203.153.165.184 0:0:0:0:0:ffff:cb99:a5b8
203.153.165.185 0:0:0:0:0:ffff:cb99:a5b9
203.153.165.186 0:0:0:0:0:ffff:cb99:a5ba
203.153.165.187 0:0:0:0:0:ffff:cb99:a5bb
203.153.165.188 0:0:0:0:0:ffff:cb99:a5bc
203.153.165.189 0:0:0:0:0:ffff:cb99:a5bd
203.153.165.190 0:0:0:0:0:ffff:cb99:a5be
203.153.165.191 0:0:0:0:0:ffff:cb99:a5bf
203.153.165.192 0:0:0:0:0:ffff:cb99:a5c0
203.153.165.193 0:0:0:0:0:ffff:cb99:a5c1
203.153.165.194 0:0:0:0:0:ffff:cb99:a5c2
203.153.165.195 0:0:0:0:0:ffff:cb99:a5c3
203.153.165.196 0:0:0:0:0:ffff:cb99:a5c4
203.153.165.197 0:0:0:0:0:ffff:cb99:a5c5
203.153.165.198 0:0:0:0:0:ffff:cb99:a5c6
203.153.165.199 0:0:0:0:0:ffff:cb99:a5c7
203.153.165.200 0:0:0:0:0:ffff:cb99:a5c8
203.153.165.201 0:0:0:0:0:ffff:cb99:a5c9
203.153.165.202 0:0:0:0:0:ffff:cb99:a5ca
203.153.165.203 0:0:0:0:0:ffff:cb99:a5cb
203.153.165.204 0:0:0:0:0:ffff:cb99:a5cc
203.153.165.205 0:0:0:0:0:ffff:cb99:a5cd
203.153.165.206 0:0:0:0:0:ffff:cb99:a5ce
203.153.165.207 0:0:0:0:0:ffff:cb99:a5cf
203.153.165.208 0:0:0:0:0:ffff:cb99:a5d0
203.153.165.209 0:0:0:0:0:ffff:cb99:a5d1
203.153.165.210 0:0:0:0:0:ffff:cb99:a5d2
203.153.165.211 0:0:0:0:0:ffff:cb99:a5d3
203.153.165.212 0:0:0:0:0:ffff:cb99:a5d4
203.153.165.213 0:0:0:0:0:ffff:cb99:a5d5
203.153.165.214 0:0:0:0:0:ffff:cb99:a5d6
203.153.165.215 0:0:0:0:0:ffff:cb99:a5d7
203.153.165.216 0:0:0:0:0:ffff:cb99:a5d8
203.153.165.217 0:0:0:0:0:ffff:cb99:a5d9
203.153.165.218 0:0:0:0:0:ffff:cb99:a5da
203.153.165.219 0:0:0:0:0:ffff:cb99:a5db
203.153.165.220 0:0:0:0:0:ffff:cb99:a5dc
203.153.165.221 0:0:0:0:0:ffff:cb99:a5dd
203.153.165.222 0:0:0:0:0:ffff:cb99:a5de
203.153.165.223 0:0:0:0:0:ffff:cb99:a5df
203.153.165.224 0:0:0:0:0:ffff:cb99:a5e0
203.153.165.225 0:0:0:0:0:ffff:cb99:a5e1
203.153.165.226 0:0:0:0:0:ffff:cb99:a5e2
203.153.165.227 0:0:0:0:0:ffff:cb99:a5e3
203.153.165.228 0:0:0:0:0:ffff:cb99:a5e4
203.153.165.229 0:0:0:0:0:ffff:cb99:a5e5
203.153.165.230 0:0:0:0:0:ffff:cb99:a5e6
203.153.165.231 0:0:0:0:0:ffff:cb99:a5e7
203.153.165.232 0:0:0:0:0:ffff:cb99:a5e8
203.153.165.233 0:0:0:0:0:ffff:cb99:a5e9
203.153.165.234 0:0:0:0:0:ffff:cb99:a5ea
203.153.165.235 0:0:0:0:0:ffff:cb99:a5eb
203.153.165.236 0:0:0:0:0:ffff:cb99:a5ec
203.153.165.237 0:0:0:0:0:ffff:cb99:a5ed
203.153.165.238 0:0:0:0:0:ffff:cb99:a5ee
203.153.165.239 0:0:0:0:0:ffff:cb99:a5ef
203.153.165.240 0:0:0:0:0:ffff:cb99:a5f0
203.153.165.241 0:0:0:0:0:ffff:cb99:a5f1
203.153.165.242 0:0:0:0:0:ffff:cb99:a5f2
203.153.165.243 0:0:0:0:0:ffff:cb99:a5f3
203.153.165.244 0:0:0:0:0:ffff:cb99:a5f4
203.153.165.245 0:0:0:0:0:ffff:cb99:a5f5
203.153.165.246 0:0:0:0:0:ffff:cb99:a5f6
203.153.165.247 0:0:0:0:0:ffff:cb99:a5f7
203.153.165.248 0:0:0:0:0:ffff:cb99:a5f8
203.153.165.249 0:0:0:0:0:ffff:cb99:a5f9
203.153.165.250 0:0:0:0:0:ffff:cb99:a5fa
203.153.165.251 0:0:0:0:0:ffff:cb99:a5fb
203.153.165.252 0:0:0:0:0:ffff:cb99:a5fc
203.153.165.253 0:0:0:0:0:ffff:cb99:a5fd
203.153.165.254 0:0:0:0:0:ffff:cb99:a5fe
203.153.165.255 0:0:0:0:0:ffff:cb99:a5ff


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.