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
18.78.243.1 0:0:0:0:0:ffff:124e:f301
18.78.243.2 0:0:0:0:0:ffff:124e:f302
18.78.243.3 0:0:0:0:0:ffff:124e:f303
18.78.243.4 0:0:0:0:0:ffff:124e:f304
18.78.243.5 0:0:0:0:0:ffff:124e:f305
18.78.243.6 0:0:0:0:0:ffff:124e:f306
18.78.243.7 0:0:0:0:0:ffff:124e:f307
18.78.243.8 0:0:0:0:0:ffff:124e:f308
18.78.243.9 0:0:0:0:0:ffff:124e:f309
18.78.243.10 0:0:0:0:0:ffff:124e:f30a
18.78.243.11 0:0:0:0:0:ffff:124e:f30b
18.78.243.12 0:0:0:0:0:ffff:124e:f30c
18.78.243.13 0:0:0:0:0:ffff:124e:f30d
18.78.243.14 0:0:0:0:0:ffff:124e:f30e
18.78.243.15 0:0:0:0:0:ffff:124e:f30f
18.78.243.16 0:0:0:0:0:ffff:124e:f310
18.78.243.17 0:0:0:0:0:ffff:124e:f311
18.78.243.18 0:0:0:0:0:ffff:124e:f312
18.78.243.19 0:0:0:0:0:ffff:124e:f313
18.78.243.20 0:0:0:0:0:ffff:124e:f314
18.78.243.21 0:0:0:0:0:ffff:124e:f315
18.78.243.22 0:0:0:0:0:ffff:124e:f316
18.78.243.23 0:0:0:0:0:ffff:124e:f317
18.78.243.24 0:0:0:0:0:ffff:124e:f318
18.78.243.25 0:0:0:0:0:ffff:124e:f319
18.78.243.26 0:0:0:0:0:ffff:124e:f31a
18.78.243.27 0:0:0:0:0:ffff:124e:f31b
18.78.243.28 0:0:0:0:0:ffff:124e:f31c
18.78.243.29 0:0:0:0:0:ffff:124e:f31d
18.78.243.30 0:0:0:0:0:ffff:124e:f31e
18.78.243.31 0:0:0:0:0:ffff:124e:f31f
18.78.243.32 0:0:0:0:0:ffff:124e:f320
18.78.243.33 0:0:0:0:0:ffff:124e:f321
18.78.243.34 0:0:0:0:0:ffff:124e:f322
18.78.243.35 0:0:0:0:0:ffff:124e:f323
18.78.243.36 0:0:0:0:0:ffff:124e:f324
18.78.243.37 0:0:0:0:0:ffff:124e:f325
18.78.243.38 0:0:0:0:0:ffff:124e:f326
18.78.243.39 0:0:0:0:0:ffff:124e:f327
18.78.243.40 0:0:0:0:0:ffff:124e:f328
18.78.243.41 0:0:0:0:0:ffff:124e:f329
18.78.243.42 0:0:0:0:0:ffff:124e:f32a
18.78.243.43 0:0:0:0:0:ffff:124e:f32b
18.78.243.44 0:0:0:0:0:ffff:124e:f32c
18.78.243.45 0:0:0:0:0:ffff:124e:f32d
18.78.243.46 0:0:0:0:0:ffff:124e:f32e
18.78.243.47 0:0:0:0:0:ffff:124e:f32f
18.78.243.48 0:0:0:0:0:ffff:124e:f330
18.78.243.49 0:0:0:0:0:ffff:124e:f331
18.78.243.50 0:0:0:0:0:ffff:124e:f332
18.78.243.51 0:0:0:0:0:ffff:124e:f333
18.78.243.52 0:0:0:0:0:ffff:124e:f334
18.78.243.53 0:0:0:0:0:ffff:124e:f335
18.78.243.54 0:0:0:0:0:ffff:124e:f336
18.78.243.55 0:0:0:0:0:ffff:124e:f337
18.78.243.56 0:0:0:0:0:ffff:124e:f338
18.78.243.57 0:0:0:0:0:ffff:124e:f339
18.78.243.58 0:0:0:0:0:ffff:124e:f33a
18.78.243.59 0:0:0:0:0:ffff:124e:f33b
18.78.243.60 0:0:0:0:0:ffff:124e:f33c


18.78.243.61 0:0:0:0:0:ffff:124e:f33d
18.78.243.62 0:0:0:0:0:ffff:124e:f33e
18.78.243.63 0:0:0:0:0:ffff:124e:f33f
18.78.243.64 0:0:0:0:0:ffff:124e:f340
18.78.243.65 0:0:0:0:0:ffff:124e:f341
18.78.243.66 0:0:0:0:0:ffff:124e:f342
18.78.243.67 0:0:0:0:0:ffff:124e:f343
18.78.243.68 0:0:0:0:0:ffff:124e:f344
18.78.243.69 0:0:0:0:0:ffff:124e:f345
18.78.243.70 0:0:0:0:0:ffff:124e:f346
18.78.243.71 0:0:0:0:0:ffff:124e:f347
18.78.243.72 0:0:0:0:0:ffff:124e:f348
18.78.243.73 0:0:0:0:0:ffff:124e:f349
18.78.243.74 0:0:0:0:0:ffff:124e:f34a
18.78.243.75 0:0:0:0:0:ffff:124e:f34b
18.78.243.76 0:0:0:0:0:ffff:124e:f34c
18.78.243.77 0:0:0:0:0:ffff:124e:f34d
18.78.243.78 0:0:0:0:0:ffff:124e:f34e
18.78.243.79 0:0:0:0:0:ffff:124e:f34f
18.78.243.80 0:0:0:0:0:ffff:124e:f350
18.78.243.81 0:0:0:0:0:ffff:124e:f351
18.78.243.82 0:0:0:0:0:ffff:124e:f352
18.78.243.83 0:0:0:0:0:ffff:124e:f353
18.78.243.84 0:0:0:0:0:ffff:124e:f354
18.78.243.85 0:0:0:0:0:ffff:124e:f355
18.78.243.86 0:0:0:0:0:ffff:124e:f356
18.78.243.87 0:0:0:0:0:ffff:124e:f357
18.78.243.88 0:0:0:0:0:ffff:124e:f358
18.78.243.89 0:0:0:0:0:ffff:124e:f359
18.78.243.90 0:0:0:0:0:ffff:124e:f35a
18.78.243.91 0:0:0:0:0:ffff:124e:f35b
18.78.243.92 0:0:0:0:0:ffff:124e:f35c
18.78.243.93 0:0:0:0:0:ffff:124e:f35d
18.78.243.94 0:0:0:0:0:ffff:124e:f35e
18.78.243.95 0:0:0:0:0:ffff:124e:f35f
18.78.243.96 0:0:0:0:0:ffff:124e:f360
18.78.243.97 0:0:0:0:0:ffff:124e:f361
18.78.243.98 0:0:0:0:0:ffff:124e:f362
18.78.243.99 0:0:0:0:0:ffff:124e:f363
18.78.243.100 0:0:0:0:0:ffff:124e:f364
18.78.243.101 0:0:0:0:0:ffff:124e:f365
18.78.243.102 0:0:0:0:0:ffff:124e:f366
18.78.243.103 0:0:0:0:0:ffff:124e:f367
18.78.243.104 0:0:0:0:0:ffff:124e:f368
18.78.243.105 0:0:0:0:0:ffff:124e:f369
18.78.243.106 0:0:0:0:0:ffff:124e:f36a
18.78.243.107 0:0:0:0:0:ffff:124e:f36b
18.78.243.108 0:0:0:0:0:ffff:124e:f36c
18.78.243.109 0:0:0:0:0:ffff:124e:f36d
18.78.243.110 0:0:0:0:0:ffff:124e:f36e
18.78.243.111 0:0:0:0:0:ffff:124e:f36f
18.78.243.112 0:0:0:0:0:ffff:124e:f370
18.78.243.113 0:0:0:0:0:ffff:124e:f371
18.78.243.114 0:0:0:0:0:ffff:124e:f372
18.78.243.115 0:0:0:0:0:ffff:124e:f373
18.78.243.116 0:0:0:0:0:ffff:124e:f374
18.78.243.117 0:0:0:0:0:ffff:124e:f375
18.78.243.118 0:0:0:0:0:ffff:124e:f376
18.78.243.119 0:0:0:0:0:ffff:124e:f377
18.78.243.120 0:0:0:0:0:ffff:124e:f378


18.78.243.121 0:0:0:0:0:ffff:124e:f379
18.78.243.122 0:0:0:0:0:ffff:124e:f37a
18.78.243.123 0:0:0:0:0:ffff:124e:f37b
18.78.243.124 0:0:0:0:0:ffff:124e:f37c
18.78.243.125 0:0:0:0:0:ffff:124e:f37d
18.78.243.126 0:0:0:0:0:ffff:124e:f37e
18.78.243.127 0:0:0:0:0:ffff:124e:f37f
18.78.243.128 0:0:0:0:0:ffff:124e:f380
18.78.243.129 0:0:0:0:0:ffff:124e:f381
18.78.243.130 0:0:0:0:0:ffff:124e:f382
18.78.243.131 0:0:0:0:0:ffff:124e:f383
18.78.243.132 0:0:0:0:0:ffff:124e:f384
18.78.243.133 0:0:0:0:0:ffff:124e:f385
18.78.243.134 0:0:0:0:0:ffff:124e:f386
18.78.243.135 0:0:0:0:0:ffff:124e:f387
18.78.243.136 0:0:0:0:0:ffff:124e:f388
18.78.243.137 0:0:0:0:0:ffff:124e:f389
18.78.243.138 0:0:0:0:0:ffff:124e:f38a
18.78.243.139 0:0:0:0:0:ffff:124e:f38b
18.78.243.140 0:0:0:0:0:ffff:124e:f38c
18.78.243.141 0:0:0:0:0:ffff:124e:f38d
18.78.243.142 0:0:0:0:0:ffff:124e:f38e
18.78.243.143 0:0:0:0:0:ffff:124e:f38f
18.78.243.144 0:0:0:0:0:ffff:124e:f390
18.78.243.145 0:0:0:0:0:ffff:124e:f391
18.78.243.146 0:0:0:0:0:ffff:124e:f392
18.78.243.147 0:0:0:0:0:ffff:124e:f393
18.78.243.148 0:0:0:0:0:ffff:124e:f394
18.78.243.149 0:0:0:0:0:ffff:124e:f395
18.78.243.150 0:0:0:0:0:ffff:124e:f396
18.78.243.151 0:0:0:0:0:ffff:124e:f397
18.78.243.152 0:0:0:0:0:ffff:124e:f398
18.78.243.153 0:0:0:0:0:ffff:124e:f399
18.78.243.154 0:0:0:0:0:ffff:124e:f39a
18.78.243.155 0:0:0:0:0:ffff:124e:f39b
18.78.243.156 0:0:0:0:0:ffff:124e:f39c
18.78.243.157 0:0:0:0:0:ffff:124e:f39d
18.78.243.158 0:0:0:0:0:ffff:124e:f39e
18.78.243.159 0:0:0:0:0:ffff:124e:f39f
18.78.243.160 0:0:0:0:0:ffff:124e:f3a0
18.78.243.161 0:0:0:0:0:ffff:124e:f3a1
18.78.243.162 0:0:0:0:0:ffff:124e:f3a2
18.78.243.163 0:0:0:0:0:ffff:124e:f3a3
18.78.243.164 0:0:0:0:0:ffff:124e:f3a4
18.78.243.165 0:0:0:0:0:ffff:124e:f3a5
18.78.243.166 0:0:0:0:0:ffff:124e:f3a6
18.78.243.167 0:0:0:0:0:ffff:124e:f3a7
18.78.243.168 0:0:0:0:0:ffff:124e:f3a8
18.78.243.169 0:0:0:0:0:ffff:124e:f3a9
18.78.243.170 0:0:0:0:0:ffff:124e:f3aa
18.78.243.171 0:0:0:0:0:ffff:124e:f3ab
18.78.243.172 0:0:0:0:0:ffff:124e:f3ac
18.78.243.173 0:0:0:0:0:ffff:124e:f3ad
18.78.243.174 0:0:0:0:0:ffff:124e:f3ae
18.78.243.175 0:0:0:0:0:ffff:124e:f3af
18.78.243.176 0:0:0:0:0:ffff:124e:f3b0
18.78.243.177 0:0:0:0:0:ffff:124e:f3b1
18.78.243.178 0:0:0:0:0:ffff:124e:f3b2
18.78.243.179 0:0:0:0:0:ffff:124e:f3b3
18.78.243.180 0:0:0:0:0:ffff:124e:f3b4


18.78.243.181 0:0:0:0:0:ffff:124e:f3b5
18.78.243.182 0:0:0:0:0:ffff:124e:f3b6
18.78.243.183 0:0:0:0:0:ffff:124e:f3b7
18.78.243.184 0:0:0:0:0:ffff:124e:f3b8
18.78.243.185 0:0:0:0:0:ffff:124e:f3b9
18.78.243.186 0:0:0:0:0:ffff:124e:f3ba
18.78.243.187 0:0:0:0:0:ffff:124e:f3bb
18.78.243.188 0:0:0:0:0:ffff:124e:f3bc
18.78.243.189 0:0:0:0:0:ffff:124e:f3bd
18.78.243.190 0:0:0:0:0:ffff:124e:f3be
18.78.243.191 0:0:0:0:0:ffff:124e:f3bf
18.78.243.192 0:0:0:0:0:ffff:124e:f3c0
18.78.243.193 0:0:0:0:0:ffff:124e:f3c1
18.78.243.194 0:0:0:0:0:ffff:124e:f3c2
18.78.243.195 0:0:0:0:0:ffff:124e:f3c3
18.78.243.196 0:0:0:0:0:ffff:124e:f3c4
18.78.243.197 0:0:0:0:0:ffff:124e:f3c5
18.78.243.198 0:0:0:0:0:ffff:124e:f3c6
18.78.243.199 0:0:0:0:0:ffff:124e:f3c7
18.78.243.200 0:0:0:0:0:ffff:124e:f3c8
18.78.243.201 0:0:0:0:0:ffff:124e:f3c9
18.78.243.202 0:0:0:0:0:ffff:124e:f3ca
18.78.243.203 0:0:0:0:0:ffff:124e:f3cb
18.78.243.204 0:0:0:0:0:ffff:124e:f3cc
18.78.243.205 0:0:0:0:0:ffff:124e:f3cd
18.78.243.206 0:0:0:0:0:ffff:124e:f3ce
18.78.243.207 0:0:0:0:0:ffff:124e:f3cf
18.78.243.208 0:0:0:0:0:ffff:124e:f3d0
18.78.243.209 0:0:0:0:0:ffff:124e:f3d1
18.78.243.210 0:0:0:0:0:ffff:124e:f3d2
18.78.243.211 0:0:0:0:0:ffff:124e:f3d3
18.78.243.212 0:0:0:0:0:ffff:124e:f3d4
18.78.243.213 0:0:0:0:0:ffff:124e:f3d5
18.78.243.214 0:0:0:0:0:ffff:124e:f3d6
18.78.243.215 0:0:0:0:0:ffff:124e:f3d7
18.78.243.216 0:0:0:0:0:ffff:124e:f3d8
18.78.243.217 0:0:0:0:0:ffff:124e:f3d9
18.78.243.218 0:0:0:0:0:ffff:124e:f3da
18.78.243.219 0:0:0:0:0:ffff:124e:f3db
18.78.243.220 0:0:0:0:0:ffff:124e:f3dc
18.78.243.221 0:0:0:0:0:ffff:124e:f3dd
18.78.243.222 0:0:0:0:0:ffff:124e:f3de
18.78.243.223 0:0:0:0:0:ffff:124e:f3df
18.78.243.224 0:0:0:0:0:ffff:124e:f3e0
18.78.243.225 0:0:0:0:0:ffff:124e:f3e1
18.78.243.226 0:0:0:0:0:ffff:124e:f3e2
18.78.243.227 0:0:0:0:0:ffff:124e:f3e3
18.78.243.228 0:0:0:0:0:ffff:124e:f3e4
18.78.243.229 0:0:0:0:0:ffff:124e:f3e5
18.78.243.230 0:0:0:0:0:ffff:124e:f3e6
18.78.243.231 0:0:0:0:0:ffff:124e:f3e7
18.78.243.232 0:0:0:0:0:ffff:124e:f3e8
18.78.243.233 0:0:0:0:0:ffff:124e:f3e9
18.78.243.234 0:0:0:0:0:ffff:124e:f3ea
18.78.243.235 0:0:0:0:0:ffff:124e:f3eb
18.78.243.236 0:0:0:0:0:ffff:124e:f3ec
18.78.243.237 0:0:0:0:0:ffff:124e:f3ed
18.78.243.238 0:0:0:0:0:ffff:124e:f3ee
18.78.243.239 0:0:0:0:0:ffff:124e:f3ef
18.78.243.240 0:0:0:0:0:ffff:124e:f3f0
18.78.243.241 0:0:0:0:0:ffff:124e:f3f1
18.78.243.242 0:0:0:0:0:ffff:124e:f3f2
18.78.243.243 0:0:0:0:0:ffff:124e:f3f3
18.78.243.244 0:0:0:0:0:ffff:124e:f3f4
18.78.243.245 0:0:0:0:0:ffff:124e:f3f5
18.78.243.246 0:0:0:0:0:ffff:124e:f3f6
18.78.243.247 0:0:0:0:0:ffff:124e:f3f7
18.78.243.248 0:0:0:0:0:ffff:124e:f3f8
18.78.243.249 0:0:0:0:0:ffff:124e:f3f9
18.78.243.250 0:0:0:0:0:ffff:124e:f3fa
18.78.243.251 0:0:0:0:0:ffff:124e:f3fb
18.78.243.252 0:0:0:0:0:ffff:124e:f3fc
18.78.243.253 0:0:0:0:0:ffff:124e:f3fd
18.78.243.254 0:0:0:0:0:ffff:124e:f3fe
18.78.243.255 0:0:0:0:0:ffff:124e: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.