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
66.188.100.1 0:0:0:0:0:ffff:42bc:6401
66.188.100.2 0:0:0:0:0:ffff:42bc:6402
66.188.100.3 0:0:0:0:0:ffff:42bc:6403
66.188.100.4 0:0:0:0:0:ffff:42bc:6404
66.188.100.5 0:0:0:0:0:ffff:42bc:6405
66.188.100.6 0:0:0:0:0:ffff:42bc:6406
66.188.100.7 0:0:0:0:0:ffff:42bc:6407
66.188.100.8 0:0:0:0:0:ffff:42bc:6408
66.188.100.9 0:0:0:0:0:ffff:42bc:6409
66.188.100.10 0:0:0:0:0:ffff:42bc:640a
66.188.100.11 0:0:0:0:0:ffff:42bc:640b
66.188.100.12 0:0:0:0:0:ffff:42bc:640c
66.188.100.13 0:0:0:0:0:ffff:42bc:640d
66.188.100.14 0:0:0:0:0:ffff:42bc:640e
66.188.100.15 0:0:0:0:0:ffff:42bc:640f
66.188.100.16 0:0:0:0:0:ffff:42bc:6410
66.188.100.17 0:0:0:0:0:ffff:42bc:6411
66.188.100.18 0:0:0:0:0:ffff:42bc:6412
66.188.100.19 0:0:0:0:0:ffff:42bc:6413
66.188.100.20 0:0:0:0:0:ffff:42bc:6414
66.188.100.21 0:0:0:0:0:ffff:42bc:6415
66.188.100.22 0:0:0:0:0:ffff:42bc:6416
66.188.100.23 0:0:0:0:0:ffff:42bc:6417
66.188.100.24 0:0:0:0:0:ffff:42bc:6418
66.188.100.25 0:0:0:0:0:ffff:42bc:6419
66.188.100.26 0:0:0:0:0:ffff:42bc:641a
66.188.100.27 0:0:0:0:0:ffff:42bc:641b
66.188.100.28 0:0:0:0:0:ffff:42bc:641c
66.188.100.29 0:0:0:0:0:ffff:42bc:641d
66.188.100.30 0:0:0:0:0:ffff:42bc:641e
66.188.100.31 0:0:0:0:0:ffff:42bc:641f
66.188.100.32 0:0:0:0:0:ffff:42bc:6420
66.188.100.33 0:0:0:0:0:ffff:42bc:6421
66.188.100.34 0:0:0:0:0:ffff:42bc:6422
66.188.100.35 0:0:0:0:0:ffff:42bc:6423
66.188.100.36 0:0:0:0:0:ffff:42bc:6424
66.188.100.37 0:0:0:0:0:ffff:42bc:6425
66.188.100.38 0:0:0:0:0:ffff:42bc:6426
66.188.100.39 0:0:0:0:0:ffff:42bc:6427
66.188.100.40 0:0:0:0:0:ffff:42bc:6428
66.188.100.41 0:0:0:0:0:ffff:42bc:6429
66.188.100.42 0:0:0:0:0:ffff:42bc:642a
66.188.100.43 0:0:0:0:0:ffff:42bc:642b
66.188.100.44 0:0:0:0:0:ffff:42bc:642c
66.188.100.45 0:0:0:0:0:ffff:42bc:642d
66.188.100.46 0:0:0:0:0:ffff:42bc:642e
66.188.100.47 0:0:0:0:0:ffff:42bc:642f
66.188.100.48 0:0:0:0:0:ffff:42bc:6430
66.188.100.49 0:0:0:0:0:ffff:42bc:6431
66.188.100.50 0:0:0:0:0:ffff:42bc:6432
66.188.100.51 0:0:0:0:0:ffff:42bc:6433
66.188.100.52 0:0:0:0:0:ffff:42bc:6434
66.188.100.53 0:0:0:0:0:ffff:42bc:6435
66.188.100.54 0:0:0:0:0:ffff:42bc:6436
66.188.100.55 0:0:0:0:0:ffff:42bc:6437
66.188.100.56 0:0:0:0:0:ffff:42bc:6438
66.188.100.57 0:0:0:0:0:ffff:42bc:6439
66.188.100.58 0:0:0:0:0:ffff:42bc:643a
66.188.100.59 0:0:0:0:0:ffff:42bc:643b
66.188.100.60 0:0:0:0:0:ffff:42bc:643c


66.188.100.61 0:0:0:0:0:ffff:42bc:643d
66.188.100.62 0:0:0:0:0:ffff:42bc:643e
66.188.100.63 0:0:0:0:0:ffff:42bc:643f
66.188.100.64 0:0:0:0:0:ffff:42bc:6440
66.188.100.65 0:0:0:0:0:ffff:42bc:6441
66.188.100.66 0:0:0:0:0:ffff:42bc:6442
66.188.100.67 0:0:0:0:0:ffff:42bc:6443
66.188.100.68 0:0:0:0:0:ffff:42bc:6444
66.188.100.69 0:0:0:0:0:ffff:42bc:6445
66.188.100.70 0:0:0:0:0:ffff:42bc:6446
66.188.100.71 0:0:0:0:0:ffff:42bc:6447
66.188.100.72 0:0:0:0:0:ffff:42bc:6448
66.188.100.73 0:0:0:0:0:ffff:42bc:6449
66.188.100.74 0:0:0:0:0:ffff:42bc:644a
66.188.100.75 0:0:0:0:0:ffff:42bc:644b
66.188.100.76 0:0:0:0:0:ffff:42bc:644c
66.188.100.77 0:0:0:0:0:ffff:42bc:644d
66.188.100.78 0:0:0:0:0:ffff:42bc:644e
66.188.100.79 0:0:0:0:0:ffff:42bc:644f
66.188.100.80 0:0:0:0:0:ffff:42bc:6450
66.188.100.81 0:0:0:0:0:ffff:42bc:6451
66.188.100.82 0:0:0:0:0:ffff:42bc:6452
66.188.100.83 0:0:0:0:0:ffff:42bc:6453
66.188.100.84 0:0:0:0:0:ffff:42bc:6454
66.188.100.85 0:0:0:0:0:ffff:42bc:6455
66.188.100.86 0:0:0:0:0:ffff:42bc:6456
66.188.100.87 0:0:0:0:0:ffff:42bc:6457
66.188.100.88 0:0:0:0:0:ffff:42bc:6458
66.188.100.89 0:0:0:0:0:ffff:42bc:6459
66.188.100.90 0:0:0:0:0:ffff:42bc:645a
66.188.100.91 0:0:0:0:0:ffff:42bc:645b
66.188.100.92 0:0:0:0:0:ffff:42bc:645c
66.188.100.93 0:0:0:0:0:ffff:42bc:645d
66.188.100.94 0:0:0:0:0:ffff:42bc:645e
66.188.100.95 0:0:0:0:0:ffff:42bc:645f
66.188.100.96 0:0:0:0:0:ffff:42bc:6460
66.188.100.97 0:0:0:0:0:ffff:42bc:6461
66.188.100.98 0:0:0:0:0:ffff:42bc:6462
66.188.100.99 0:0:0:0:0:ffff:42bc:6463
66.188.100.100 0:0:0:0:0:ffff:42bc:6464
66.188.100.101 0:0:0:0:0:ffff:42bc:6465
66.188.100.102 0:0:0:0:0:ffff:42bc:6466
66.188.100.103 0:0:0:0:0:ffff:42bc:6467
66.188.100.104 0:0:0:0:0:ffff:42bc:6468
66.188.100.105 0:0:0:0:0:ffff:42bc:6469
66.188.100.106 0:0:0:0:0:ffff:42bc:646a
66.188.100.107 0:0:0:0:0:ffff:42bc:646b
66.188.100.108 0:0:0:0:0:ffff:42bc:646c
66.188.100.109 0:0:0:0:0:ffff:42bc:646d
66.188.100.110 0:0:0:0:0:ffff:42bc:646e
66.188.100.111 0:0:0:0:0:ffff:42bc:646f
66.188.100.112 0:0:0:0:0:ffff:42bc:6470
66.188.100.113 0:0:0:0:0:ffff:42bc:6471
66.188.100.114 0:0:0:0:0:ffff:42bc:6472
66.188.100.115 0:0:0:0:0:ffff:42bc:6473
66.188.100.116 0:0:0:0:0:ffff:42bc:6474
66.188.100.117 0:0:0:0:0:ffff:42bc:6475
66.188.100.118 0:0:0:0:0:ffff:42bc:6476
66.188.100.119 0:0:0:0:0:ffff:42bc:6477
66.188.100.120 0:0:0:0:0:ffff:42bc:6478


66.188.100.121 0:0:0:0:0:ffff:42bc:6479
66.188.100.122 0:0:0:0:0:ffff:42bc:647a
66.188.100.123 0:0:0:0:0:ffff:42bc:647b
66.188.100.124 0:0:0:0:0:ffff:42bc:647c
66.188.100.125 0:0:0:0:0:ffff:42bc:647d
66.188.100.126 0:0:0:0:0:ffff:42bc:647e
66.188.100.127 0:0:0:0:0:ffff:42bc:647f
66.188.100.128 0:0:0:0:0:ffff:42bc:6480
66.188.100.129 0:0:0:0:0:ffff:42bc:6481
66.188.100.130 0:0:0:0:0:ffff:42bc:6482
66.188.100.131 0:0:0:0:0:ffff:42bc:6483
66.188.100.132 0:0:0:0:0:ffff:42bc:6484
66.188.100.133 0:0:0:0:0:ffff:42bc:6485
66.188.100.134 0:0:0:0:0:ffff:42bc:6486
66.188.100.135 0:0:0:0:0:ffff:42bc:6487
66.188.100.136 0:0:0:0:0:ffff:42bc:6488
66.188.100.137 0:0:0:0:0:ffff:42bc:6489
66.188.100.138 0:0:0:0:0:ffff:42bc:648a
66.188.100.139 0:0:0:0:0:ffff:42bc:648b
66.188.100.140 0:0:0:0:0:ffff:42bc:648c
66.188.100.141 0:0:0:0:0:ffff:42bc:648d
66.188.100.142 0:0:0:0:0:ffff:42bc:648e
66.188.100.143 0:0:0:0:0:ffff:42bc:648f
66.188.100.144 0:0:0:0:0:ffff:42bc:6490
66.188.100.145 0:0:0:0:0:ffff:42bc:6491
66.188.100.146 0:0:0:0:0:ffff:42bc:6492
66.188.100.147 0:0:0:0:0:ffff:42bc:6493
66.188.100.148 0:0:0:0:0:ffff:42bc:6494
66.188.100.149 0:0:0:0:0:ffff:42bc:6495
66.188.100.150 0:0:0:0:0:ffff:42bc:6496
66.188.100.151 0:0:0:0:0:ffff:42bc:6497
66.188.100.152 0:0:0:0:0:ffff:42bc:6498
66.188.100.153 0:0:0:0:0:ffff:42bc:6499
66.188.100.154 0:0:0:0:0:ffff:42bc:649a
66.188.100.155 0:0:0:0:0:ffff:42bc:649b
66.188.100.156 0:0:0:0:0:ffff:42bc:649c
66.188.100.157 0:0:0:0:0:ffff:42bc:649d
66.188.100.158 0:0:0:0:0:ffff:42bc:649e
66.188.100.159 0:0:0:0:0:ffff:42bc:649f
66.188.100.160 0:0:0:0:0:ffff:42bc:64a0
66.188.100.161 0:0:0:0:0:ffff:42bc:64a1
66.188.100.162 0:0:0:0:0:ffff:42bc:64a2
66.188.100.163 0:0:0:0:0:ffff:42bc:64a3
66.188.100.164 0:0:0:0:0:ffff:42bc:64a4
66.188.100.165 0:0:0:0:0:ffff:42bc:64a5
66.188.100.166 0:0:0:0:0:ffff:42bc:64a6
66.188.100.167 0:0:0:0:0:ffff:42bc:64a7
66.188.100.168 0:0:0:0:0:ffff:42bc:64a8
66.188.100.169 0:0:0:0:0:ffff:42bc:64a9
66.188.100.170 0:0:0:0:0:ffff:42bc:64aa
66.188.100.171 0:0:0:0:0:ffff:42bc:64ab
66.188.100.172 0:0:0:0:0:ffff:42bc:64ac
66.188.100.173 0:0:0:0:0:ffff:42bc:64ad
66.188.100.174 0:0:0:0:0:ffff:42bc:64ae
66.188.100.175 0:0:0:0:0:ffff:42bc:64af
66.188.100.176 0:0:0:0:0:ffff:42bc:64b0
66.188.100.177 0:0:0:0:0:ffff:42bc:64b1
66.188.100.178 0:0:0:0:0:ffff:42bc:64b2
66.188.100.179 0:0:0:0:0:ffff:42bc:64b3
66.188.100.180 0:0:0:0:0:ffff:42bc:64b4


66.188.100.181 0:0:0:0:0:ffff:42bc:64b5
66.188.100.182 0:0:0:0:0:ffff:42bc:64b6
66.188.100.183 0:0:0:0:0:ffff:42bc:64b7
66.188.100.184 0:0:0:0:0:ffff:42bc:64b8
66.188.100.185 0:0:0:0:0:ffff:42bc:64b9
66.188.100.186 0:0:0:0:0:ffff:42bc:64ba
66.188.100.187 0:0:0:0:0:ffff:42bc:64bb
66.188.100.188 0:0:0:0:0:ffff:42bc:64bc
66.188.100.189 0:0:0:0:0:ffff:42bc:64bd
66.188.100.190 0:0:0:0:0:ffff:42bc:64be
66.188.100.191 0:0:0:0:0:ffff:42bc:64bf
66.188.100.192 0:0:0:0:0:ffff:42bc:64c0
66.188.100.193 0:0:0:0:0:ffff:42bc:64c1
66.188.100.194 0:0:0:0:0:ffff:42bc:64c2
66.188.100.195 0:0:0:0:0:ffff:42bc:64c3
66.188.100.196 0:0:0:0:0:ffff:42bc:64c4
66.188.100.197 0:0:0:0:0:ffff:42bc:64c5
66.188.100.198 0:0:0:0:0:ffff:42bc:64c6
66.188.100.199 0:0:0:0:0:ffff:42bc:64c7
66.188.100.200 0:0:0:0:0:ffff:42bc:64c8
66.188.100.201 0:0:0:0:0:ffff:42bc:64c9
66.188.100.202 0:0:0:0:0:ffff:42bc:64ca
66.188.100.203 0:0:0:0:0:ffff:42bc:64cb
66.188.100.204 0:0:0:0:0:ffff:42bc:64cc
66.188.100.205 0:0:0:0:0:ffff:42bc:64cd
66.188.100.206 0:0:0:0:0:ffff:42bc:64ce
66.188.100.207 0:0:0:0:0:ffff:42bc:64cf
66.188.100.208 0:0:0:0:0:ffff:42bc:64d0
66.188.100.209 0:0:0:0:0:ffff:42bc:64d1
66.188.100.210 0:0:0:0:0:ffff:42bc:64d2
66.188.100.211 0:0:0:0:0:ffff:42bc:64d3
66.188.100.212 0:0:0:0:0:ffff:42bc:64d4
66.188.100.213 0:0:0:0:0:ffff:42bc:64d5
66.188.100.214 0:0:0:0:0:ffff:42bc:64d6
66.188.100.215 0:0:0:0:0:ffff:42bc:64d7
66.188.100.216 0:0:0:0:0:ffff:42bc:64d8
66.188.100.217 0:0:0:0:0:ffff:42bc:64d9
66.188.100.218 0:0:0:0:0:ffff:42bc:64da
66.188.100.219 0:0:0:0:0:ffff:42bc:64db
66.188.100.220 0:0:0:0:0:ffff:42bc:64dc
66.188.100.221 0:0:0:0:0:ffff:42bc:64dd
66.188.100.222 0:0:0:0:0:ffff:42bc:64de
66.188.100.223 0:0:0:0:0:ffff:42bc:64df
66.188.100.224 0:0:0:0:0:ffff:42bc:64e0
66.188.100.225 0:0:0:0:0:ffff:42bc:64e1
66.188.100.226 0:0:0:0:0:ffff:42bc:64e2
66.188.100.227 0:0:0:0:0:ffff:42bc:64e3
66.188.100.228 0:0:0:0:0:ffff:42bc:64e4
66.188.100.229 0:0:0:0:0:ffff:42bc:64e5
66.188.100.230 0:0:0:0:0:ffff:42bc:64e6
66.188.100.231 0:0:0:0:0:ffff:42bc:64e7
66.188.100.232 0:0:0:0:0:ffff:42bc:64e8
66.188.100.233 0:0:0:0:0:ffff:42bc:64e9
66.188.100.234 0:0:0:0:0:ffff:42bc:64ea
66.188.100.235 0:0:0:0:0:ffff:42bc:64eb
66.188.100.236 0:0:0:0:0:ffff:42bc:64ec
66.188.100.237 0:0:0:0:0:ffff:42bc:64ed
66.188.100.238 0:0:0:0:0:ffff:42bc:64ee
66.188.100.239 0:0:0:0:0:ffff:42bc:64ef
66.188.100.240 0:0:0:0:0:ffff:42bc:64f0
66.188.100.241 0:0:0:0:0:ffff:42bc:64f1
66.188.100.242 0:0:0:0:0:ffff:42bc:64f2
66.188.100.243 0:0:0:0:0:ffff:42bc:64f3
66.188.100.244 0:0:0:0:0:ffff:42bc:64f4
66.188.100.245 0:0:0:0:0:ffff:42bc:64f5
66.188.100.246 0:0:0:0:0:ffff:42bc:64f6
66.188.100.247 0:0:0:0:0:ffff:42bc:64f7
66.188.100.248 0:0:0:0:0:ffff:42bc:64f8
66.188.100.249 0:0:0:0:0:ffff:42bc:64f9
66.188.100.250 0:0:0:0:0:ffff:42bc:64fa
66.188.100.251 0:0:0:0:0:ffff:42bc:64fb
66.188.100.252 0:0:0:0:0:ffff:42bc:64fc
66.188.100.253 0:0:0:0:0:ffff:42bc:64fd
66.188.100.254 0:0:0:0:0:ffff:42bc:64fe
66.188.100.255 0:0:0:0:0:ffff:42bc: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.