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
200.18.100.1 0:0:0:0:0:ffff:c812:6401
200.18.100.2 0:0:0:0:0:ffff:c812:6402
200.18.100.3 0:0:0:0:0:ffff:c812:6403
200.18.100.4 0:0:0:0:0:ffff:c812:6404
200.18.100.5 0:0:0:0:0:ffff:c812:6405
200.18.100.6 0:0:0:0:0:ffff:c812:6406
200.18.100.7 0:0:0:0:0:ffff:c812:6407
200.18.100.8 0:0:0:0:0:ffff:c812:6408
200.18.100.9 0:0:0:0:0:ffff:c812:6409
200.18.100.10 0:0:0:0:0:ffff:c812:640a
200.18.100.11 0:0:0:0:0:ffff:c812:640b
200.18.100.12 0:0:0:0:0:ffff:c812:640c
200.18.100.13 0:0:0:0:0:ffff:c812:640d
200.18.100.14 0:0:0:0:0:ffff:c812:640e
200.18.100.15 0:0:0:0:0:ffff:c812:640f
200.18.100.16 0:0:0:0:0:ffff:c812:6410
200.18.100.17 0:0:0:0:0:ffff:c812:6411
200.18.100.18 0:0:0:0:0:ffff:c812:6412
200.18.100.19 0:0:0:0:0:ffff:c812:6413
200.18.100.20 0:0:0:0:0:ffff:c812:6414
200.18.100.21 0:0:0:0:0:ffff:c812:6415
200.18.100.22 0:0:0:0:0:ffff:c812:6416
200.18.100.23 0:0:0:0:0:ffff:c812:6417
200.18.100.24 0:0:0:0:0:ffff:c812:6418
200.18.100.25 0:0:0:0:0:ffff:c812:6419
200.18.100.26 0:0:0:0:0:ffff:c812:641a
200.18.100.27 0:0:0:0:0:ffff:c812:641b
200.18.100.28 0:0:0:0:0:ffff:c812:641c
200.18.100.29 0:0:0:0:0:ffff:c812:641d
200.18.100.30 0:0:0:0:0:ffff:c812:641e
200.18.100.31 0:0:0:0:0:ffff:c812:641f
200.18.100.32 0:0:0:0:0:ffff:c812:6420
200.18.100.33 0:0:0:0:0:ffff:c812:6421
200.18.100.34 0:0:0:0:0:ffff:c812:6422
200.18.100.35 0:0:0:0:0:ffff:c812:6423
200.18.100.36 0:0:0:0:0:ffff:c812:6424
200.18.100.37 0:0:0:0:0:ffff:c812:6425
200.18.100.38 0:0:0:0:0:ffff:c812:6426
200.18.100.39 0:0:0:0:0:ffff:c812:6427
200.18.100.40 0:0:0:0:0:ffff:c812:6428
200.18.100.41 0:0:0:0:0:ffff:c812:6429
200.18.100.42 0:0:0:0:0:ffff:c812:642a
200.18.100.43 0:0:0:0:0:ffff:c812:642b
200.18.100.44 0:0:0:0:0:ffff:c812:642c
200.18.100.45 0:0:0:0:0:ffff:c812:642d
200.18.100.46 0:0:0:0:0:ffff:c812:642e
200.18.100.47 0:0:0:0:0:ffff:c812:642f
200.18.100.48 0:0:0:0:0:ffff:c812:6430
200.18.100.49 0:0:0:0:0:ffff:c812:6431
200.18.100.50 0:0:0:0:0:ffff:c812:6432
200.18.100.51 0:0:0:0:0:ffff:c812:6433
200.18.100.52 0:0:0:0:0:ffff:c812:6434
200.18.100.53 0:0:0:0:0:ffff:c812:6435
200.18.100.54 0:0:0:0:0:ffff:c812:6436
200.18.100.55 0:0:0:0:0:ffff:c812:6437
200.18.100.56 0:0:0:0:0:ffff:c812:6438
200.18.100.57 0:0:0:0:0:ffff:c812:6439
200.18.100.58 0:0:0:0:0:ffff:c812:643a
200.18.100.59 0:0:0:0:0:ffff:c812:643b
200.18.100.60 0:0:0:0:0:ffff:c812:643c


200.18.100.61 0:0:0:0:0:ffff:c812:643d
200.18.100.62 0:0:0:0:0:ffff:c812:643e
200.18.100.63 0:0:0:0:0:ffff:c812:643f
200.18.100.64 0:0:0:0:0:ffff:c812:6440
200.18.100.65 0:0:0:0:0:ffff:c812:6441
200.18.100.66 0:0:0:0:0:ffff:c812:6442
200.18.100.67 0:0:0:0:0:ffff:c812:6443
200.18.100.68 0:0:0:0:0:ffff:c812:6444
200.18.100.69 0:0:0:0:0:ffff:c812:6445
200.18.100.70 0:0:0:0:0:ffff:c812:6446
200.18.100.71 0:0:0:0:0:ffff:c812:6447
200.18.100.72 0:0:0:0:0:ffff:c812:6448
200.18.100.73 0:0:0:0:0:ffff:c812:6449
200.18.100.74 0:0:0:0:0:ffff:c812:644a
200.18.100.75 0:0:0:0:0:ffff:c812:644b
200.18.100.76 0:0:0:0:0:ffff:c812:644c
200.18.100.77 0:0:0:0:0:ffff:c812:644d
200.18.100.78 0:0:0:0:0:ffff:c812:644e
200.18.100.79 0:0:0:0:0:ffff:c812:644f
200.18.100.80 0:0:0:0:0:ffff:c812:6450
200.18.100.81 0:0:0:0:0:ffff:c812:6451
200.18.100.82 0:0:0:0:0:ffff:c812:6452
200.18.100.83 0:0:0:0:0:ffff:c812:6453
200.18.100.84 0:0:0:0:0:ffff:c812:6454
200.18.100.85 0:0:0:0:0:ffff:c812:6455
200.18.100.86 0:0:0:0:0:ffff:c812:6456
200.18.100.87 0:0:0:0:0:ffff:c812:6457
200.18.100.88 0:0:0:0:0:ffff:c812:6458
200.18.100.89 0:0:0:0:0:ffff:c812:6459
200.18.100.90 0:0:0:0:0:ffff:c812:645a
200.18.100.91 0:0:0:0:0:ffff:c812:645b
200.18.100.92 0:0:0:0:0:ffff:c812:645c
200.18.100.93 0:0:0:0:0:ffff:c812:645d
200.18.100.94 0:0:0:0:0:ffff:c812:645e
200.18.100.95 0:0:0:0:0:ffff:c812:645f
200.18.100.96 0:0:0:0:0:ffff:c812:6460
200.18.100.97 0:0:0:0:0:ffff:c812:6461
200.18.100.98 0:0:0:0:0:ffff:c812:6462
200.18.100.99 0:0:0:0:0:ffff:c812:6463
200.18.100.100 0:0:0:0:0:ffff:c812:6464
200.18.100.101 0:0:0:0:0:ffff:c812:6465
200.18.100.102 0:0:0:0:0:ffff:c812:6466
200.18.100.103 0:0:0:0:0:ffff:c812:6467
200.18.100.104 0:0:0:0:0:ffff:c812:6468
200.18.100.105 0:0:0:0:0:ffff:c812:6469
200.18.100.106 0:0:0:0:0:ffff:c812:646a
200.18.100.107 0:0:0:0:0:ffff:c812:646b
200.18.100.108 0:0:0:0:0:ffff:c812:646c
200.18.100.109 0:0:0:0:0:ffff:c812:646d
200.18.100.110 0:0:0:0:0:ffff:c812:646e
200.18.100.111 0:0:0:0:0:ffff:c812:646f
200.18.100.112 0:0:0:0:0:ffff:c812:6470
200.18.100.113 0:0:0:0:0:ffff:c812:6471
200.18.100.114 0:0:0:0:0:ffff:c812:6472
200.18.100.115 0:0:0:0:0:ffff:c812:6473
200.18.100.116 0:0:0:0:0:ffff:c812:6474
200.18.100.117 0:0:0:0:0:ffff:c812:6475
200.18.100.118 0:0:0:0:0:ffff:c812:6476
200.18.100.119 0:0:0:0:0:ffff:c812:6477
200.18.100.120 0:0:0:0:0:ffff:c812:6478


200.18.100.121 0:0:0:0:0:ffff:c812:6479
200.18.100.122 0:0:0:0:0:ffff:c812:647a
200.18.100.123 0:0:0:0:0:ffff:c812:647b
200.18.100.124 0:0:0:0:0:ffff:c812:647c
200.18.100.125 0:0:0:0:0:ffff:c812:647d
200.18.100.126 0:0:0:0:0:ffff:c812:647e
200.18.100.127 0:0:0:0:0:ffff:c812:647f
200.18.100.128 0:0:0:0:0:ffff:c812:6480
200.18.100.129 0:0:0:0:0:ffff:c812:6481
200.18.100.130 0:0:0:0:0:ffff:c812:6482
200.18.100.131 0:0:0:0:0:ffff:c812:6483
200.18.100.132 0:0:0:0:0:ffff:c812:6484
200.18.100.133 0:0:0:0:0:ffff:c812:6485
200.18.100.134 0:0:0:0:0:ffff:c812:6486
200.18.100.135 0:0:0:0:0:ffff:c812:6487
200.18.100.136 0:0:0:0:0:ffff:c812:6488
200.18.100.137 0:0:0:0:0:ffff:c812:6489
200.18.100.138 0:0:0:0:0:ffff:c812:648a
200.18.100.139 0:0:0:0:0:ffff:c812:648b
200.18.100.140 0:0:0:0:0:ffff:c812:648c
200.18.100.141 0:0:0:0:0:ffff:c812:648d
200.18.100.142 0:0:0:0:0:ffff:c812:648e
200.18.100.143 0:0:0:0:0:ffff:c812:648f
200.18.100.144 0:0:0:0:0:ffff:c812:6490
200.18.100.145 0:0:0:0:0:ffff:c812:6491
200.18.100.146 0:0:0:0:0:ffff:c812:6492
200.18.100.147 0:0:0:0:0:ffff:c812:6493
200.18.100.148 0:0:0:0:0:ffff:c812:6494
200.18.100.149 0:0:0:0:0:ffff:c812:6495
200.18.100.150 0:0:0:0:0:ffff:c812:6496
200.18.100.151 0:0:0:0:0:ffff:c812:6497
200.18.100.152 0:0:0:0:0:ffff:c812:6498
200.18.100.153 0:0:0:0:0:ffff:c812:6499
200.18.100.154 0:0:0:0:0:ffff:c812:649a
200.18.100.155 0:0:0:0:0:ffff:c812:649b
200.18.100.156 0:0:0:0:0:ffff:c812:649c
200.18.100.157 0:0:0:0:0:ffff:c812:649d
200.18.100.158 0:0:0:0:0:ffff:c812:649e
200.18.100.159 0:0:0:0:0:ffff:c812:649f
200.18.100.160 0:0:0:0:0:ffff:c812:64a0
200.18.100.161 0:0:0:0:0:ffff:c812:64a1
200.18.100.162 0:0:0:0:0:ffff:c812:64a2
200.18.100.163 0:0:0:0:0:ffff:c812:64a3
200.18.100.164 0:0:0:0:0:ffff:c812:64a4
200.18.100.165 0:0:0:0:0:ffff:c812:64a5
200.18.100.166 0:0:0:0:0:ffff:c812:64a6
200.18.100.167 0:0:0:0:0:ffff:c812:64a7
200.18.100.168 0:0:0:0:0:ffff:c812:64a8
200.18.100.169 0:0:0:0:0:ffff:c812:64a9
200.18.100.170 0:0:0:0:0:ffff:c812:64aa
200.18.100.171 0:0:0:0:0:ffff:c812:64ab
200.18.100.172 0:0:0:0:0:ffff:c812:64ac
200.18.100.173 0:0:0:0:0:ffff:c812:64ad
200.18.100.174 0:0:0:0:0:ffff:c812:64ae
200.18.100.175 0:0:0:0:0:ffff:c812:64af
200.18.100.176 0:0:0:0:0:ffff:c812:64b0
200.18.100.177 0:0:0:0:0:ffff:c812:64b1
200.18.100.178 0:0:0:0:0:ffff:c812:64b2
200.18.100.179 0:0:0:0:0:ffff:c812:64b3
200.18.100.180 0:0:0:0:0:ffff:c812:64b4


200.18.100.181 0:0:0:0:0:ffff:c812:64b5
200.18.100.182 0:0:0:0:0:ffff:c812:64b6
200.18.100.183 0:0:0:0:0:ffff:c812:64b7
200.18.100.184 0:0:0:0:0:ffff:c812:64b8
200.18.100.185 0:0:0:0:0:ffff:c812:64b9
200.18.100.186 0:0:0:0:0:ffff:c812:64ba
200.18.100.187 0:0:0:0:0:ffff:c812:64bb
200.18.100.188 0:0:0:0:0:ffff:c812:64bc
200.18.100.189 0:0:0:0:0:ffff:c812:64bd
200.18.100.190 0:0:0:0:0:ffff:c812:64be
200.18.100.191 0:0:0:0:0:ffff:c812:64bf
200.18.100.192 0:0:0:0:0:ffff:c812:64c0
200.18.100.193 0:0:0:0:0:ffff:c812:64c1
200.18.100.194 0:0:0:0:0:ffff:c812:64c2
200.18.100.195 0:0:0:0:0:ffff:c812:64c3
200.18.100.196 0:0:0:0:0:ffff:c812:64c4
200.18.100.197 0:0:0:0:0:ffff:c812:64c5
200.18.100.198 0:0:0:0:0:ffff:c812:64c6
200.18.100.199 0:0:0:0:0:ffff:c812:64c7
200.18.100.200 0:0:0:0:0:ffff:c812:64c8
200.18.100.201 0:0:0:0:0:ffff:c812:64c9
200.18.100.202 0:0:0:0:0:ffff:c812:64ca
200.18.100.203 0:0:0:0:0:ffff:c812:64cb
200.18.100.204 0:0:0:0:0:ffff:c812:64cc
200.18.100.205 0:0:0:0:0:ffff:c812:64cd
200.18.100.206 0:0:0:0:0:ffff:c812:64ce
200.18.100.207 0:0:0:0:0:ffff:c812:64cf
200.18.100.208 0:0:0:0:0:ffff:c812:64d0
200.18.100.209 0:0:0:0:0:ffff:c812:64d1
200.18.100.210 0:0:0:0:0:ffff:c812:64d2
200.18.100.211 0:0:0:0:0:ffff:c812:64d3
200.18.100.212 0:0:0:0:0:ffff:c812:64d4
200.18.100.213 0:0:0:0:0:ffff:c812:64d5
200.18.100.214 0:0:0:0:0:ffff:c812:64d6
200.18.100.215 0:0:0:0:0:ffff:c812:64d7
200.18.100.216 0:0:0:0:0:ffff:c812:64d8
200.18.100.217 0:0:0:0:0:ffff:c812:64d9
200.18.100.218 0:0:0:0:0:ffff:c812:64da
200.18.100.219 0:0:0:0:0:ffff:c812:64db
200.18.100.220 0:0:0:0:0:ffff:c812:64dc
200.18.100.221 0:0:0:0:0:ffff:c812:64dd
200.18.100.222 0:0:0:0:0:ffff:c812:64de
200.18.100.223 0:0:0:0:0:ffff:c812:64df
200.18.100.224 0:0:0:0:0:ffff:c812:64e0
200.18.100.225 0:0:0:0:0:ffff:c812:64e1
200.18.100.226 0:0:0:0:0:ffff:c812:64e2
200.18.100.227 0:0:0:0:0:ffff:c812:64e3
200.18.100.228 0:0:0:0:0:ffff:c812:64e4
200.18.100.229 0:0:0:0:0:ffff:c812:64e5
200.18.100.230 0:0:0:0:0:ffff:c812:64e6
200.18.100.231 0:0:0:0:0:ffff:c812:64e7
200.18.100.232 0:0:0:0:0:ffff:c812:64e8
200.18.100.233 0:0:0:0:0:ffff:c812:64e9
200.18.100.234 0:0:0:0:0:ffff:c812:64ea
200.18.100.235 0:0:0:0:0:ffff:c812:64eb
200.18.100.236 0:0:0:0:0:ffff:c812:64ec
200.18.100.237 0:0:0:0:0:ffff:c812:64ed
200.18.100.238 0:0:0:0:0:ffff:c812:64ee
200.18.100.239 0:0:0:0:0:ffff:c812:64ef
200.18.100.240 0:0:0:0:0:ffff:c812:64f0
200.18.100.241 0:0:0:0:0:ffff:c812:64f1
200.18.100.242 0:0:0:0:0:ffff:c812:64f2
200.18.100.243 0:0:0:0:0:ffff:c812:64f3
200.18.100.244 0:0:0:0:0:ffff:c812:64f4
200.18.100.245 0:0:0:0:0:ffff:c812:64f5
200.18.100.246 0:0:0:0:0:ffff:c812:64f6
200.18.100.247 0:0:0:0:0:ffff:c812:64f7
200.18.100.248 0:0:0:0:0:ffff:c812:64f8
200.18.100.249 0:0:0:0:0:ffff:c812:64f9
200.18.100.250 0:0:0:0:0:ffff:c812:64fa
200.18.100.251 0:0:0:0:0:ffff:c812:64fb
200.18.100.252 0:0:0:0:0:ffff:c812:64fc
200.18.100.253 0:0:0:0:0:ffff:c812:64fd
200.18.100.254 0:0:0:0:0:ffff:c812:64fe
200.18.100.255 0:0:0:0:0:ffff:c812:64ff


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.