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
203.153.243.1 0:0:0:0:0:ffff:cb99:f301
203.153.243.2 0:0:0:0:0:ffff:cb99:f302
203.153.243.3 0:0:0:0:0:ffff:cb99:f303
203.153.243.4 0:0:0:0:0:ffff:cb99:f304
203.153.243.5 0:0:0:0:0:ffff:cb99:f305
203.153.243.6 0:0:0:0:0:ffff:cb99:f306
203.153.243.7 0:0:0:0:0:ffff:cb99:f307
203.153.243.8 0:0:0:0:0:ffff:cb99:f308
203.153.243.9 0:0:0:0:0:ffff:cb99:f309
203.153.243.10 0:0:0:0:0:ffff:cb99:f30a
203.153.243.11 0:0:0:0:0:ffff:cb99:f30b
203.153.243.12 0:0:0:0:0:ffff:cb99:f30c
203.153.243.13 0:0:0:0:0:ffff:cb99:f30d
203.153.243.14 0:0:0:0:0:ffff:cb99:f30e
203.153.243.15 0:0:0:0:0:ffff:cb99:f30f
203.153.243.16 0:0:0:0:0:ffff:cb99:f310
203.153.243.17 0:0:0:0:0:ffff:cb99:f311
203.153.243.18 0:0:0:0:0:ffff:cb99:f312
203.153.243.19 0:0:0:0:0:ffff:cb99:f313
203.153.243.20 0:0:0:0:0:ffff:cb99:f314
203.153.243.21 0:0:0:0:0:ffff:cb99:f315
203.153.243.22 0:0:0:0:0:ffff:cb99:f316
203.153.243.23 0:0:0:0:0:ffff:cb99:f317
203.153.243.24 0:0:0:0:0:ffff:cb99:f318
203.153.243.25 0:0:0:0:0:ffff:cb99:f319
203.153.243.26 0:0:0:0:0:ffff:cb99:f31a
203.153.243.27 0:0:0:0:0:ffff:cb99:f31b
203.153.243.28 0:0:0:0:0:ffff:cb99:f31c
203.153.243.29 0:0:0:0:0:ffff:cb99:f31d
203.153.243.30 0:0:0:0:0:ffff:cb99:f31e
203.153.243.31 0:0:0:0:0:ffff:cb99:f31f
203.153.243.32 0:0:0:0:0:ffff:cb99:f320
203.153.243.33 0:0:0:0:0:ffff:cb99:f321
203.153.243.34 0:0:0:0:0:ffff:cb99:f322
203.153.243.35 0:0:0:0:0:ffff:cb99:f323
203.153.243.36 0:0:0:0:0:ffff:cb99:f324
203.153.243.37 0:0:0:0:0:ffff:cb99:f325
203.153.243.38 0:0:0:0:0:ffff:cb99:f326
203.153.243.39 0:0:0:0:0:ffff:cb99:f327
203.153.243.40 0:0:0:0:0:ffff:cb99:f328
203.153.243.41 0:0:0:0:0:ffff:cb99:f329
203.153.243.42 0:0:0:0:0:ffff:cb99:f32a
203.153.243.43 0:0:0:0:0:ffff:cb99:f32b
203.153.243.44 0:0:0:0:0:ffff:cb99:f32c
203.153.243.45 0:0:0:0:0:ffff:cb99:f32d
203.153.243.46 0:0:0:0:0:ffff:cb99:f32e
203.153.243.47 0:0:0:0:0:ffff:cb99:f32f
203.153.243.48 0:0:0:0:0:ffff:cb99:f330
203.153.243.49 0:0:0:0:0:ffff:cb99:f331
203.153.243.50 0:0:0:0:0:ffff:cb99:f332
203.153.243.51 0:0:0:0:0:ffff:cb99:f333
203.153.243.52 0:0:0:0:0:ffff:cb99:f334
203.153.243.53 0:0:0:0:0:ffff:cb99:f335
203.153.243.54 0:0:0:0:0:ffff:cb99:f336
203.153.243.55 0:0:0:0:0:ffff:cb99:f337
203.153.243.56 0:0:0:0:0:ffff:cb99:f338
203.153.243.57 0:0:0:0:0:ffff:cb99:f339
203.153.243.58 0:0:0:0:0:ffff:cb99:f33a
203.153.243.59 0:0:0:0:0:ffff:cb99:f33b
203.153.243.60 0:0:0:0:0:ffff:cb99:f33c


203.153.243.61 0:0:0:0:0:ffff:cb99:f33d
203.153.243.62 0:0:0:0:0:ffff:cb99:f33e
203.153.243.63 0:0:0:0:0:ffff:cb99:f33f
203.153.243.64 0:0:0:0:0:ffff:cb99:f340
203.153.243.65 0:0:0:0:0:ffff:cb99:f341
203.153.243.66 0:0:0:0:0:ffff:cb99:f342
203.153.243.67 0:0:0:0:0:ffff:cb99:f343
203.153.243.68 0:0:0:0:0:ffff:cb99:f344
203.153.243.69 0:0:0:0:0:ffff:cb99:f345
203.153.243.70 0:0:0:0:0:ffff:cb99:f346
203.153.243.71 0:0:0:0:0:ffff:cb99:f347
203.153.243.72 0:0:0:0:0:ffff:cb99:f348
203.153.243.73 0:0:0:0:0:ffff:cb99:f349
203.153.243.74 0:0:0:0:0:ffff:cb99:f34a
203.153.243.75 0:0:0:0:0:ffff:cb99:f34b
203.153.243.76 0:0:0:0:0:ffff:cb99:f34c
203.153.243.77 0:0:0:0:0:ffff:cb99:f34d
203.153.243.78 0:0:0:0:0:ffff:cb99:f34e
203.153.243.79 0:0:0:0:0:ffff:cb99:f34f
203.153.243.80 0:0:0:0:0:ffff:cb99:f350
203.153.243.81 0:0:0:0:0:ffff:cb99:f351
203.153.243.82 0:0:0:0:0:ffff:cb99:f352
203.153.243.83 0:0:0:0:0:ffff:cb99:f353
203.153.243.84 0:0:0:0:0:ffff:cb99:f354
203.153.243.85 0:0:0:0:0:ffff:cb99:f355
203.153.243.86 0:0:0:0:0:ffff:cb99:f356
203.153.243.87 0:0:0:0:0:ffff:cb99:f357
203.153.243.88 0:0:0:0:0:ffff:cb99:f358
203.153.243.89 0:0:0:0:0:ffff:cb99:f359
203.153.243.90 0:0:0:0:0:ffff:cb99:f35a
203.153.243.91 0:0:0:0:0:ffff:cb99:f35b
203.153.243.92 0:0:0:0:0:ffff:cb99:f35c
203.153.243.93 0:0:0:0:0:ffff:cb99:f35d
203.153.243.94 0:0:0:0:0:ffff:cb99:f35e
203.153.243.95 0:0:0:0:0:ffff:cb99:f35f
203.153.243.96 0:0:0:0:0:ffff:cb99:f360
203.153.243.97 0:0:0:0:0:ffff:cb99:f361
203.153.243.98 0:0:0:0:0:ffff:cb99:f362
203.153.243.99 0:0:0:0:0:ffff:cb99:f363
203.153.243.100 0:0:0:0:0:ffff:cb99:f364
203.153.243.101 0:0:0:0:0:ffff:cb99:f365
203.153.243.102 0:0:0:0:0:ffff:cb99:f366
203.153.243.103 0:0:0:0:0:ffff:cb99:f367
203.153.243.104 0:0:0:0:0:ffff:cb99:f368
203.153.243.105 0:0:0:0:0:ffff:cb99:f369
203.153.243.106 0:0:0:0:0:ffff:cb99:f36a
203.153.243.107 0:0:0:0:0:ffff:cb99:f36b
203.153.243.108 0:0:0:0:0:ffff:cb99:f36c
203.153.243.109 0:0:0:0:0:ffff:cb99:f36d
203.153.243.110 0:0:0:0:0:ffff:cb99:f36e
203.153.243.111 0:0:0:0:0:ffff:cb99:f36f
203.153.243.112 0:0:0:0:0:ffff:cb99:f370
203.153.243.113 0:0:0:0:0:ffff:cb99:f371
203.153.243.114 0:0:0:0:0:ffff:cb99:f372
203.153.243.115 0:0:0:0:0:ffff:cb99:f373
203.153.243.116 0:0:0:0:0:ffff:cb99:f374
203.153.243.117 0:0:0:0:0:ffff:cb99:f375
203.153.243.118 0:0:0:0:0:ffff:cb99:f376
203.153.243.119 0:0:0:0:0:ffff:cb99:f377
203.153.243.120 0:0:0:0:0:ffff:cb99:f378


203.153.243.121 0:0:0:0:0:ffff:cb99:f379
203.153.243.122 0:0:0:0:0:ffff:cb99:f37a
203.153.243.123 0:0:0:0:0:ffff:cb99:f37b
203.153.243.124 0:0:0:0:0:ffff:cb99:f37c
203.153.243.125 0:0:0:0:0:ffff:cb99:f37d
203.153.243.126 0:0:0:0:0:ffff:cb99:f37e
203.153.243.127 0:0:0:0:0:ffff:cb99:f37f
203.153.243.128 0:0:0:0:0:ffff:cb99:f380
203.153.243.129 0:0:0:0:0:ffff:cb99:f381
203.153.243.130 0:0:0:0:0:ffff:cb99:f382
203.153.243.131 0:0:0:0:0:ffff:cb99:f383
203.153.243.132 0:0:0:0:0:ffff:cb99:f384
203.153.243.133 0:0:0:0:0:ffff:cb99:f385
203.153.243.134 0:0:0:0:0:ffff:cb99:f386
203.153.243.135 0:0:0:0:0:ffff:cb99:f387
203.153.243.136 0:0:0:0:0:ffff:cb99:f388
203.153.243.137 0:0:0:0:0:ffff:cb99:f389
203.153.243.138 0:0:0:0:0:ffff:cb99:f38a
203.153.243.139 0:0:0:0:0:ffff:cb99:f38b
203.153.243.140 0:0:0:0:0:ffff:cb99:f38c
203.153.243.141 0:0:0:0:0:ffff:cb99:f38d
203.153.243.142 0:0:0:0:0:ffff:cb99:f38e
203.153.243.143 0:0:0:0:0:ffff:cb99:f38f
203.153.243.144 0:0:0:0:0:ffff:cb99:f390
203.153.243.145 0:0:0:0:0:ffff:cb99:f391
203.153.243.146 0:0:0:0:0:ffff:cb99:f392
203.153.243.147 0:0:0:0:0:ffff:cb99:f393
203.153.243.148 0:0:0:0:0:ffff:cb99:f394
203.153.243.149 0:0:0:0:0:ffff:cb99:f395
203.153.243.150 0:0:0:0:0:ffff:cb99:f396
203.153.243.151 0:0:0:0:0:ffff:cb99:f397
203.153.243.152 0:0:0:0:0:ffff:cb99:f398
203.153.243.153 0:0:0:0:0:ffff:cb99:f399
203.153.243.154 0:0:0:0:0:ffff:cb99:f39a
203.153.243.155 0:0:0:0:0:ffff:cb99:f39b
203.153.243.156 0:0:0:0:0:ffff:cb99:f39c
203.153.243.157 0:0:0:0:0:ffff:cb99:f39d
203.153.243.158 0:0:0:0:0:ffff:cb99:f39e
203.153.243.159 0:0:0:0:0:ffff:cb99:f39f
203.153.243.160 0:0:0:0:0:ffff:cb99:f3a0
203.153.243.161 0:0:0:0:0:ffff:cb99:f3a1
203.153.243.162 0:0:0:0:0:ffff:cb99:f3a2
203.153.243.163 0:0:0:0:0:ffff:cb99:f3a3
203.153.243.164 0:0:0:0:0:ffff:cb99:f3a4
203.153.243.165 0:0:0:0:0:ffff:cb99:f3a5
203.153.243.166 0:0:0:0:0:ffff:cb99:f3a6
203.153.243.167 0:0:0:0:0:ffff:cb99:f3a7
203.153.243.168 0:0:0:0:0:ffff:cb99:f3a8
203.153.243.169 0:0:0:0:0:ffff:cb99:f3a9
203.153.243.170 0:0:0:0:0:ffff:cb99:f3aa
203.153.243.171 0:0:0:0:0:ffff:cb99:f3ab
203.153.243.172 0:0:0:0:0:ffff:cb99:f3ac
203.153.243.173 0:0:0:0:0:ffff:cb99:f3ad
203.153.243.174 0:0:0:0:0:ffff:cb99:f3ae
203.153.243.175 0:0:0:0:0:ffff:cb99:f3af
203.153.243.176 0:0:0:0:0:ffff:cb99:f3b0
203.153.243.177 0:0:0:0:0:ffff:cb99:f3b1
203.153.243.178 0:0:0:0:0:ffff:cb99:f3b2
203.153.243.179 0:0:0:0:0:ffff:cb99:f3b3
203.153.243.180 0:0:0:0:0:ffff:cb99:f3b4


203.153.243.181 0:0:0:0:0:ffff:cb99:f3b5
203.153.243.182 0:0:0:0:0:ffff:cb99:f3b6
203.153.243.183 0:0:0:0:0:ffff:cb99:f3b7
203.153.243.184 0:0:0:0:0:ffff:cb99:f3b8
203.153.243.185 0:0:0:0:0:ffff:cb99:f3b9
203.153.243.186 0:0:0:0:0:ffff:cb99:f3ba
203.153.243.187 0:0:0:0:0:ffff:cb99:f3bb
203.153.243.188 0:0:0:0:0:ffff:cb99:f3bc
203.153.243.189 0:0:0:0:0:ffff:cb99:f3bd
203.153.243.190 0:0:0:0:0:ffff:cb99:f3be
203.153.243.191 0:0:0:0:0:ffff:cb99:f3bf
203.153.243.192 0:0:0:0:0:ffff:cb99:f3c0
203.153.243.193 0:0:0:0:0:ffff:cb99:f3c1
203.153.243.194 0:0:0:0:0:ffff:cb99:f3c2
203.153.243.195 0:0:0:0:0:ffff:cb99:f3c3
203.153.243.196 0:0:0:0:0:ffff:cb99:f3c4
203.153.243.197 0:0:0:0:0:ffff:cb99:f3c5
203.153.243.198 0:0:0:0:0:ffff:cb99:f3c6
203.153.243.199 0:0:0:0:0:ffff:cb99:f3c7
203.153.243.200 0:0:0:0:0:ffff:cb99:f3c8
203.153.243.201 0:0:0:0:0:ffff:cb99:f3c9
203.153.243.202 0:0:0:0:0:ffff:cb99:f3ca
203.153.243.203 0:0:0:0:0:ffff:cb99:f3cb
203.153.243.204 0:0:0:0:0:ffff:cb99:f3cc
203.153.243.205 0:0:0:0:0:ffff:cb99:f3cd
203.153.243.206 0:0:0:0:0:ffff:cb99:f3ce
203.153.243.207 0:0:0:0:0:ffff:cb99:f3cf
203.153.243.208 0:0:0:0:0:ffff:cb99:f3d0
203.153.243.209 0:0:0:0:0:ffff:cb99:f3d1
203.153.243.210 0:0:0:0:0:ffff:cb99:f3d2
203.153.243.211 0:0:0:0:0:ffff:cb99:f3d3
203.153.243.212 0:0:0:0:0:ffff:cb99:f3d4
203.153.243.213 0:0:0:0:0:ffff:cb99:f3d5
203.153.243.214 0:0:0:0:0:ffff:cb99:f3d6
203.153.243.215 0:0:0:0:0:ffff:cb99:f3d7
203.153.243.216 0:0:0:0:0:ffff:cb99:f3d8
203.153.243.217 0:0:0:0:0:ffff:cb99:f3d9
203.153.243.218 0:0:0:0:0:ffff:cb99:f3da
203.153.243.219 0:0:0:0:0:ffff:cb99:f3db
203.153.243.220 0:0:0:0:0:ffff:cb99:f3dc
203.153.243.221 0:0:0:0:0:ffff:cb99:f3dd
203.153.243.222 0:0:0:0:0:ffff:cb99:f3de
203.153.243.223 0:0:0:0:0:ffff:cb99:f3df
203.153.243.224 0:0:0:0:0:ffff:cb99:f3e0
203.153.243.225 0:0:0:0:0:ffff:cb99:f3e1
203.153.243.226 0:0:0:0:0:ffff:cb99:f3e2
203.153.243.227 0:0:0:0:0:ffff:cb99:f3e3
203.153.243.228 0:0:0:0:0:ffff:cb99:f3e4
203.153.243.229 0:0:0:0:0:ffff:cb99:f3e5
203.153.243.230 0:0:0:0:0:ffff:cb99:f3e6
203.153.243.231 0:0:0:0:0:ffff:cb99:f3e7
203.153.243.232 0:0:0:0:0:ffff:cb99:f3e8
203.153.243.233 0:0:0:0:0:ffff:cb99:f3e9
203.153.243.234 0:0:0:0:0:ffff:cb99:f3ea
203.153.243.235 0:0:0:0:0:ffff:cb99:f3eb
203.153.243.236 0:0:0:0:0:ffff:cb99:f3ec
203.153.243.237 0:0:0:0:0:ffff:cb99:f3ed
203.153.243.238 0:0:0:0:0:ffff:cb99:f3ee
203.153.243.239 0:0:0:0:0:ffff:cb99:f3ef
203.153.243.240 0:0:0:0:0:ffff:cb99:f3f0
203.153.243.241 0:0:0:0:0:ffff:cb99:f3f1
203.153.243.242 0:0:0:0:0:ffff:cb99:f3f2
203.153.243.243 0:0:0:0:0:ffff:cb99:f3f3
203.153.243.244 0:0:0:0:0:ffff:cb99:f3f4
203.153.243.245 0:0:0:0:0:ffff:cb99:f3f5
203.153.243.246 0:0:0:0:0:ffff:cb99:f3f6
203.153.243.247 0:0:0:0:0:ffff:cb99:f3f7
203.153.243.248 0:0:0:0:0:ffff:cb99:f3f8
203.153.243.249 0:0:0:0:0:ffff:cb99:f3f9
203.153.243.250 0:0:0:0:0:ffff:cb99:f3fa
203.153.243.251 0:0:0:0:0:ffff:cb99:f3fb
203.153.243.252 0:0:0:0:0:ffff:cb99:f3fc
203.153.243.253 0:0:0:0:0:ffff:cb99:f3fd
203.153.243.254 0:0:0:0:0:ffff:cb99:f3fe
203.153.243.255 0:0:0:0:0:ffff:cb99:f3ff


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.