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
12.243.67.1 0:0:0:0:0:ffff:cf3:4301
12.243.67.2 0:0:0:0:0:ffff:cf3:4302
12.243.67.3 0:0:0:0:0:ffff:cf3:4303
12.243.67.4 0:0:0:0:0:ffff:cf3:4304
12.243.67.5 0:0:0:0:0:ffff:cf3:4305
12.243.67.6 0:0:0:0:0:ffff:cf3:4306
12.243.67.7 0:0:0:0:0:ffff:cf3:4307
12.243.67.8 0:0:0:0:0:ffff:cf3:4308
12.243.67.9 0:0:0:0:0:ffff:cf3:4309
12.243.67.10 0:0:0:0:0:ffff:cf3:430a
12.243.67.11 0:0:0:0:0:ffff:cf3:430b
12.243.67.12 0:0:0:0:0:ffff:cf3:430c
12.243.67.13 0:0:0:0:0:ffff:cf3:430d
12.243.67.14 0:0:0:0:0:ffff:cf3:430e
12.243.67.15 0:0:0:0:0:ffff:cf3:430f
12.243.67.16 0:0:0:0:0:ffff:cf3:4310
12.243.67.17 0:0:0:0:0:ffff:cf3:4311
12.243.67.18 0:0:0:0:0:ffff:cf3:4312
12.243.67.19 0:0:0:0:0:ffff:cf3:4313
12.243.67.20 0:0:0:0:0:ffff:cf3:4314
12.243.67.21 0:0:0:0:0:ffff:cf3:4315
12.243.67.22 0:0:0:0:0:ffff:cf3:4316
12.243.67.23 0:0:0:0:0:ffff:cf3:4317
12.243.67.24 0:0:0:0:0:ffff:cf3:4318
12.243.67.25 0:0:0:0:0:ffff:cf3:4319
12.243.67.26 0:0:0:0:0:ffff:cf3:431a
12.243.67.27 0:0:0:0:0:ffff:cf3:431b
12.243.67.28 0:0:0:0:0:ffff:cf3:431c
12.243.67.29 0:0:0:0:0:ffff:cf3:431d
12.243.67.30 0:0:0:0:0:ffff:cf3:431e
12.243.67.31 0:0:0:0:0:ffff:cf3:431f
12.243.67.32 0:0:0:0:0:ffff:cf3:4320
12.243.67.33 0:0:0:0:0:ffff:cf3:4321
12.243.67.34 0:0:0:0:0:ffff:cf3:4322
12.243.67.35 0:0:0:0:0:ffff:cf3:4323
12.243.67.36 0:0:0:0:0:ffff:cf3:4324
12.243.67.37 0:0:0:0:0:ffff:cf3:4325
12.243.67.38 0:0:0:0:0:ffff:cf3:4326
12.243.67.39 0:0:0:0:0:ffff:cf3:4327
12.243.67.40 0:0:0:0:0:ffff:cf3:4328
12.243.67.41 0:0:0:0:0:ffff:cf3:4329
12.243.67.42 0:0:0:0:0:ffff:cf3:432a
12.243.67.43 0:0:0:0:0:ffff:cf3:432b
12.243.67.44 0:0:0:0:0:ffff:cf3:432c
12.243.67.45 0:0:0:0:0:ffff:cf3:432d
12.243.67.46 0:0:0:0:0:ffff:cf3:432e
12.243.67.47 0:0:0:0:0:ffff:cf3:432f
12.243.67.48 0:0:0:0:0:ffff:cf3:4330
12.243.67.49 0:0:0:0:0:ffff:cf3:4331
12.243.67.50 0:0:0:0:0:ffff:cf3:4332
12.243.67.51 0:0:0:0:0:ffff:cf3:4333
12.243.67.52 0:0:0:0:0:ffff:cf3:4334
12.243.67.53 0:0:0:0:0:ffff:cf3:4335
12.243.67.54 0:0:0:0:0:ffff:cf3:4336
12.243.67.55 0:0:0:0:0:ffff:cf3:4337
12.243.67.56 0:0:0:0:0:ffff:cf3:4338
12.243.67.57 0:0:0:0:0:ffff:cf3:4339
12.243.67.58 0:0:0:0:0:ffff:cf3:433a
12.243.67.59 0:0:0:0:0:ffff:cf3:433b
12.243.67.60 0:0:0:0:0:ffff:cf3:433c


12.243.67.61 0:0:0:0:0:ffff:cf3:433d
12.243.67.62 0:0:0:0:0:ffff:cf3:433e
12.243.67.63 0:0:0:0:0:ffff:cf3:433f
12.243.67.64 0:0:0:0:0:ffff:cf3:4340
12.243.67.65 0:0:0:0:0:ffff:cf3:4341
12.243.67.66 0:0:0:0:0:ffff:cf3:4342
12.243.67.67 0:0:0:0:0:ffff:cf3:4343
12.243.67.68 0:0:0:0:0:ffff:cf3:4344
12.243.67.69 0:0:0:0:0:ffff:cf3:4345
12.243.67.70 0:0:0:0:0:ffff:cf3:4346
12.243.67.71 0:0:0:0:0:ffff:cf3:4347
12.243.67.72 0:0:0:0:0:ffff:cf3:4348
12.243.67.73 0:0:0:0:0:ffff:cf3:4349
12.243.67.74 0:0:0:0:0:ffff:cf3:434a
12.243.67.75 0:0:0:0:0:ffff:cf3:434b
12.243.67.76 0:0:0:0:0:ffff:cf3:434c
12.243.67.77 0:0:0:0:0:ffff:cf3:434d
12.243.67.78 0:0:0:0:0:ffff:cf3:434e
12.243.67.79 0:0:0:0:0:ffff:cf3:434f
12.243.67.80 0:0:0:0:0:ffff:cf3:4350
12.243.67.81 0:0:0:0:0:ffff:cf3:4351
12.243.67.82 0:0:0:0:0:ffff:cf3:4352
12.243.67.83 0:0:0:0:0:ffff:cf3:4353
12.243.67.84 0:0:0:0:0:ffff:cf3:4354
12.243.67.85 0:0:0:0:0:ffff:cf3:4355
12.243.67.86 0:0:0:0:0:ffff:cf3:4356
12.243.67.87 0:0:0:0:0:ffff:cf3:4357
12.243.67.88 0:0:0:0:0:ffff:cf3:4358
12.243.67.89 0:0:0:0:0:ffff:cf3:4359
12.243.67.90 0:0:0:0:0:ffff:cf3:435a
12.243.67.91 0:0:0:0:0:ffff:cf3:435b
12.243.67.92 0:0:0:0:0:ffff:cf3:435c
12.243.67.93 0:0:0:0:0:ffff:cf3:435d
12.243.67.94 0:0:0:0:0:ffff:cf3:435e
12.243.67.95 0:0:0:0:0:ffff:cf3:435f
12.243.67.96 0:0:0:0:0:ffff:cf3:4360
12.243.67.97 0:0:0:0:0:ffff:cf3:4361
12.243.67.98 0:0:0:0:0:ffff:cf3:4362
12.243.67.99 0:0:0:0:0:ffff:cf3:4363
12.243.67.100 0:0:0:0:0:ffff:cf3:4364
12.243.67.101 0:0:0:0:0:ffff:cf3:4365
12.243.67.102 0:0:0:0:0:ffff:cf3:4366
12.243.67.103 0:0:0:0:0:ffff:cf3:4367
12.243.67.104 0:0:0:0:0:ffff:cf3:4368
12.243.67.105 0:0:0:0:0:ffff:cf3:4369
12.243.67.106 0:0:0:0:0:ffff:cf3:436a
12.243.67.107 0:0:0:0:0:ffff:cf3:436b
12.243.67.108 0:0:0:0:0:ffff:cf3:436c
12.243.67.109 0:0:0:0:0:ffff:cf3:436d
12.243.67.110 0:0:0:0:0:ffff:cf3:436e
12.243.67.111 0:0:0:0:0:ffff:cf3:436f
12.243.67.112 0:0:0:0:0:ffff:cf3:4370
12.243.67.113 0:0:0:0:0:ffff:cf3:4371
12.243.67.114 0:0:0:0:0:ffff:cf3:4372
12.243.67.115 0:0:0:0:0:ffff:cf3:4373
12.243.67.116 0:0:0:0:0:ffff:cf3:4374
12.243.67.117 0:0:0:0:0:ffff:cf3:4375
12.243.67.118 0:0:0:0:0:ffff:cf3:4376
12.243.67.119 0:0:0:0:0:ffff:cf3:4377
12.243.67.120 0:0:0:0:0:ffff:cf3:4378


12.243.67.121 0:0:0:0:0:ffff:cf3:4379
12.243.67.122 0:0:0:0:0:ffff:cf3:437a
12.243.67.123 0:0:0:0:0:ffff:cf3:437b
12.243.67.124 0:0:0:0:0:ffff:cf3:437c
12.243.67.125 0:0:0:0:0:ffff:cf3:437d
12.243.67.126 0:0:0:0:0:ffff:cf3:437e
12.243.67.127 0:0:0:0:0:ffff:cf3:437f
12.243.67.128 0:0:0:0:0:ffff:cf3:4380
12.243.67.129 0:0:0:0:0:ffff:cf3:4381
12.243.67.130 0:0:0:0:0:ffff:cf3:4382
12.243.67.131 0:0:0:0:0:ffff:cf3:4383
12.243.67.132 0:0:0:0:0:ffff:cf3:4384
12.243.67.133 0:0:0:0:0:ffff:cf3:4385
12.243.67.134 0:0:0:0:0:ffff:cf3:4386
12.243.67.135 0:0:0:0:0:ffff:cf3:4387
12.243.67.136 0:0:0:0:0:ffff:cf3:4388
12.243.67.137 0:0:0:0:0:ffff:cf3:4389
12.243.67.138 0:0:0:0:0:ffff:cf3:438a
12.243.67.139 0:0:0:0:0:ffff:cf3:438b
12.243.67.140 0:0:0:0:0:ffff:cf3:438c
12.243.67.141 0:0:0:0:0:ffff:cf3:438d
12.243.67.142 0:0:0:0:0:ffff:cf3:438e
12.243.67.143 0:0:0:0:0:ffff:cf3:438f
12.243.67.144 0:0:0:0:0:ffff:cf3:4390
12.243.67.145 0:0:0:0:0:ffff:cf3:4391
12.243.67.146 0:0:0:0:0:ffff:cf3:4392
12.243.67.147 0:0:0:0:0:ffff:cf3:4393
12.243.67.148 0:0:0:0:0:ffff:cf3:4394
12.243.67.149 0:0:0:0:0:ffff:cf3:4395
12.243.67.150 0:0:0:0:0:ffff:cf3:4396
12.243.67.151 0:0:0:0:0:ffff:cf3:4397
12.243.67.152 0:0:0:0:0:ffff:cf3:4398
12.243.67.153 0:0:0:0:0:ffff:cf3:4399
12.243.67.154 0:0:0:0:0:ffff:cf3:439a
12.243.67.155 0:0:0:0:0:ffff:cf3:439b
12.243.67.156 0:0:0:0:0:ffff:cf3:439c
12.243.67.157 0:0:0:0:0:ffff:cf3:439d
12.243.67.158 0:0:0:0:0:ffff:cf3:439e
12.243.67.159 0:0:0:0:0:ffff:cf3:439f
12.243.67.160 0:0:0:0:0:ffff:cf3:43a0
12.243.67.161 0:0:0:0:0:ffff:cf3:43a1
12.243.67.162 0:0:0:0:0:ffff:cf3:43a2
12.243.67.163 0:0:0:0:0:ffff:cf3:43a3
12.243.67.164 0:0:0:0:0:ffff:cf3:43a4
12.243.67.165 0:0:0:0:0:ffff:cf3:43a5
12.243.67.166 0:0:0:0:0:ffff:cf3:43a6
12.243.67.167 0:0:0:0:0:ffff:cf3:43a7
12.243.67.168 0:0:0:0:0:ffff:cf3:43a8
12.243.67.169 0:0:0:0:0:ffff:cf3:43a9
12.243.67.170 0:0:0:0:0:ffff:cf3:43aa
12.243.67.171 0:0:0:0:0:ffff:cf3:43ab
12.243.67.172 0:0:0:0:0:ffff:cf3:43ac
12.243.67.173 0:0:0:0:0:ffff:cf3:43ad
12.243.67.174 0:0:0:0:0:ffff:cf3:43ae
12.243.67.175 0:0:0:0:0:ffff:cf3:43af
12.243.67.176 0:0:0:0:0:ffff:cf3:43b0
12.243.67.177 0:0:0:0:0:ffff:cf3:43b1
12.243.67.178 0:0:0:0:0:ffff:cf3:43b2
12.243.67.179 0:0:0:0:0:ffff:cf3:43b3
12.243.67.180 0:0:0:0:0:ffff:cf3:43b4


12.243.67.181 0:0:0:0:0:ffff:cf3:43b5
12.243.67.182 0:0:0:0:0:ffff:cf3:43b6
12.243.67.183 0:0:0:0:0:ffff:cf3:43b7
12.243.67.184 0:0:0:0:0:ffff:cf3:43b8
12.243.67.185 0:0:0:0:0:ffff:cf3:43b9
12.243.67.186 0:0:0:0:0:ffff:cf3:43ba
12.243.67.187 0:0:0:0:0:ffff:cf3:43bb
12.243.67.188 0:0:0:0:0:ffff:cf3:43bc
12.243.67.189 0:0:0:0:0:ffff:cf3:43bd
12.243.67.190 0:0:0:0:0:ffff:cf3:43be
12.243.67.191 0:0:0:0:0:ffff:cf3:43bf
12.243.67.192 0:0:0:0:0:ffff:cf3:43c0
12.243.67.193 0:0:0:0:0:ffff:cf3:43c1
12.243.67.194 0:0:0:0:0:ffff:cf3:43c2
12.243.67.195 0:0:0:0:0:ffff:cf3:43c3
12.243.67.196 0:0:0:0:0:ffff:cf3:43c4
12.243.67.197 0:0:0:0:0:ffff:cf3:43c5
12.243.67.198 0:0:0:0:0:ffff:cf3:43c6
12.243.67.199 0:0:0:0:0:ffff:cf3:43c7
12.243.67.200 0:0:0:0:0:ffff:cf3:43c8
12.243.67.201 0:0:0:0:0:ffff:cf3:43c9
12.243.67.202 0:0:0:0:0:ffff:cf3:43ca
12.243.67.203 0:0:0:0:0:ffff:cf3:43cb
12.243.67.204 0:0:0:0:0:ffff:cf3:43cc
12.243.67.205 0:0:0:0:0:ffff:cf3:43cd
12.243.67.206 0:0:0:0:0:ffff:cf3:43ce
12.243.67.207 0:0:0:0:0:ffff:cf3:43cf
12.243.67.208 0:0:0:0:0:ffff:cf3:43d0
12.243.67.209 0:0:0:0:0:ffff:cf3:43d1
12.243.67.210 0:0:0:0:0:ffff:cf3:43d2
12.243.67.211 0:0:0:0:0:ffff:cf3:43d3
12.243.67.212 0:0:0:0:0:ffff:cf3:43d4
12.243.67.213 0:0:0:0:0:ffff:cf3:43d5
12.243.67.214 0:0:0:0:0:ffff:cf3:43d6
12.243.67.215 0:0:0:0:0:ffff:cf3:43d7
12.243.67.216 0:0:0:0:0:ffff:cf3:43d8
12.243.67.217 0:0:0:0:0:ffff:cf3:43d9
12.243.67.218 0:0:0:0:0:ffff:cf3:43da
12.243.67.219 0:0:0:0:0:ffff:cf3:43db
12.243.67.220 0:0:0:0:0:ffff:cf3:43dc
12.243.67.221 0:0:0:0:0:ffff:cf3:43dd
12.243.67.222 0:0:0:0:0:ffff:cf3:43de
12.243.67.223 0:0:0:0:0:ffff:cf3:43df
12.243.67.224 0:0:0:0:0:ffff:cf3:43e0
12.243.67.225 0:0:0:0:0:ffff:cf3:43e1
12.243.67.226 0:0:0:0:0:ffff:cf3:43e2
12.243.67.227 0:0:0:0:0:ffff:cf3:43e3
12.243.67.228 0:0:0:0:0:ffff:cf3:43e4
12.243.67.229 0:0:0:0:0:ffff:cf3:43e5
12.243.67.230 0:0:0:0:0:ffff:cf3:43e6
12.243.67.231 0:0:0:0:0:ffff:cf3:43e7
12.243.67.232 0:0:0:0:0:ffff:cf3:43e8
12.243.67.233 0:0:0:0:0:ffff:cf3:43e9
12.243.67.234 0:0:0:0:0:ffff:cf3:43ea
12.243.67.235 0:0:0:0:0:ffff:cf3:43eb
12.243.67.236 0:0:0:0:0:ffff:cf3:43ec
12.243.67.237 0:0:0:0:0:ffff:cf3:43ed
12.243.67.238 0:0:0:0:0:ffff:cf3:43ee
12.243.67.239 0:0:0:0:0:ffff:cf3:43ef
12.243.67.240 0:0:0:0:0:ffff:cf3:43f0
12.243.67.241 0:0:0:0:0:ffff:cf3:43f1
12.243.67.242 0:0:0:0:0:ffff:cf3:43f2
12.243.67.243 0:0:0:0:0:ffff:cf3:43f3
12.243.67.244 0:0:0:0:0:ffff:cf3:43f4
12.243.67.245 0:0:0:0:0:ffff:cf3:43f5
12.243.67.246 0:0:0:0:0:ffff:cf3:43f6
12.243.67.247 0:0:0:0:0:ffff:cf3:43f7
12.243.67.248 0:0:0:0:0:ffff:cf3:43f8
12.243.67.249 0:0:0:0:0:ffff:cf3:43f9
12.243.67.250 0:0:0:0:0:ffff:cf3:43fa
12.243.67.251 0:0:0:0:0:ffff:cf3:43fb
12.243.67.252 0:0:0:0:0:ffff:cf3:43fc
12.243.67.253 0:0:0:0:0:ffff:cf3:43fd
12.243.67.254 0:0:0:0:0:ffff:cf3:43fe
12.243.67.255 0:0:0:0:0:ffff:cf3:43ff


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.