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
142.18.100.1 0:0:0:0:0:ffff:8e12:6401
142.18.100.2 0:0:0:0:0:ffff:8e12:6402
142.18.100.3 0:0:0:0:0:ffff:8e12:6403
142.18.100.4 0:0:0:0:0:ffff:8e12:6404
142.18.100.5 0:0:0:0:0:ffff:8e12:6405
142.18.100.6 0:0:0:0:0:ffff:8e12:6406
142.18.100.7 0:0:0:0:0:ffff:8e12:6407
142.18.100.8 0:0:0:0:0:ffff:8e12:6408
142.18.100.9 0:0:0:0:0:ffff:8e12:6409
142.18.100.10 0:0:0:0:0:ffff:8e12:640a
142.18.100.11 0:0:0:0:0:ffff:8e12:640b
142.18.100.12 0:0:0:0:0:ffff:8e12:640c
142.18.100.13 0:0:0:0:0:ffff:8e12:640d
142.18.100.14 0:0:0:0:0:ffff:8e12:640e
142.18.100.15 0:0:0:0:0:ffff:8e12:640f
142.18.100.16 0:0:0:0:0:ffff:8e12:6410
142.18.100.17 0:0:0:0:0:ffff:8e12:6411
142.18.100.18 0:0:0:0:0:ffff:8e12:6412
142.18.100.19 0:0:0:0:0:ffff:8e12:6413
142.18.100.20 0:0:0:0:0:ffff:8e12:6414
142.18.100.21 0:0:0:0:0:ffff:8e12:6415
142.18.100.22 0:0:0:0:0:ffff:8e12:6416
142.18.100.23 0:0:0:0:0:ffff:8e12:6417
142.18.100.24 0:0:0:0:0:ffff:8e12:6418
142.18.100.25 0:0:0:0:0:ffff:8e12:6419
142.18.100.26 0:0:0:0:0:ffff:8e12:641a
142.18.100.27 0:0:0:0:0:ffff:8e12:641b
142.18.100.28 0:0:0:0:0:ffff:8e12:641c
142.18.100.29 0:0:0:0:0:ffff:8e12:641d
142.18.100.30 0:0:0:0:0:ffff:8e12:641e
142.18.100.31 0:0:0:0:0:ffff:8e12:641f
142.18.100.32 0:0:0:0:0:ffff:8e12:6420
142.18.100.33 0:0:0:0:0:ffff:8e12:6421
142.18.100.34 0:0:0:0:0:ffff:8e12:6422
142.18.100.35 0:0:0:0:0:ffff:8e12:6423
142.18.100.36 0:0:0:0:0:ffff:8e12:6424
142.18.100.37 0:0:0:0:0:ffff:8e12:6425
142.18.100.38 0:0:0:0:0:ffff:8e12:6426
142.18.100.39 0:0:0:0:0:ffff:8e12:6427
142.18.100.40 0:0:0:0:0:ffff:8e12:6428
142.18.100.41 0:0:0:0:0:ffff:8e12:6429
142.18.100.42 0:0:0:0:0:ffff:8e12:642a
142.18.100.43 0:0:0:0:0:ffff:8e12:642b
142.18.100.44 0:0:0:0:0:ffff:8e12:642c
142.18.100.45 0:0:0:0:0:ffff:8e12:642d
142.18.100.46 0:0:0:0:0:ffff:8e12:642e
142.18.100.47 0:0:0:0:0:ffff:8e12:642f
142.18.100.48 0:0:0:0:0:ffff:8e12:6430
142.18.100.49 0:0:0:0:0:ffff:8e12:6431
142.18.100.50 0:0:0:0:0:ffff:8e12:6432
142.18.100.51 0:0:0:0:0:ffff:8e12:6433
142.18.100.52 0:0:0:0:0:ffff:8e12:6434
142.18.100.53 0:0:0:0:0:ffff:8e12:6435
142.18.100.54 0:0:0:0:0:ffff:8e12:6436
142.18.100.55 0:0:0:0:0:ffff:8e12:6437
142.18.100.56 0:0:0:0:0:ffff:8e12:6438
142.18.100.57 0:0:0:0:0:ffff:8e12:6439
142.18.100.58 0:0:0:0:0:ffff:8e12:643a
142.18.100.59 0:0:0:0:0:ffff:8e12:643b
142.18.100.60 0:0:0:0:0:ffff:8e12:643c


142.18.100.61 0:0:0:0:0:ffff:8e12:643d
142.18.100.62 0:0:0:0:0:ffff:8e12:643e
142.18.100.63 0:0:0:0:0:ffff:8e12:643f
142.18.100.64 0:0:0:0:0:ffff:8e12:6440
142.18.100.65 0:0:0:0:0:ffff:8e12:6441
142.18.100.66 0:0:0:0:0:ffff:8e12:6442
142.18.100.67 0:0:0:0:0:ffff:8e12:6443
142.18.100.68 0:0:0:0:0:ffff:8e12:6444
142.18.100.69 0:0:0:0:0:ffff:8e12:6445
142.18.100.70 0:0:0:0:0:ffff:8e12:6446
142.18.100.71 0:0:0:0:0:ffff:8e12:6447
142.18.100.72 0:0:0:0:0:ffff:8e12:6448
142.18.100.73 0:0:0:0:0:ffff:8e12:6449
142.18.100.74 0:0:0:0:0:ffff:8e12:644a
142.18.100.75 0:0:0:0:0:ffff:8e12:644b
142.18.100.76 0:0:0:0:0:ffff:8e12:644c
142.18.100.77 0:0:0:0:0:ffff:8e12:644d
142.18.100.78 0:0:0:0:0:ffff:8e12:644e
142.18.100.79 0:0:0:0:0:ffff:8e12:644f
142.18.100.80 0:0:0:0:0:ffff:8e12:6450
142.18.100.81 0:0:0:0:0:ffff:8e12:6451
142.18.100.82 0:0:0:0:0:ffff:8e12:6452
142.18.100.83 0:0:0:0:0:ffff:8e12:6453
142.18.100.84 0:0:0:0:0:ffff:8e12:6454
142.18.100.85 0:0:0:0:0:ffff:8e12:6455
142.18.100.86 0:0:0:0:0:ffff:8e12:6456
142.18.100.87 0:0:0:0:0:ffff:8e12:6457
142.18.100.88 0:0:0:0:0:ffff:8e12:6458
142.18.100.89 0:0:0:0:0:ffff:8e12:6459
142.18.100.90 0:0:0:0:0:ffff:8e12:645a
142.18.100.91 0:0:0:0:0:ffff:8e12:645b
142.18.100.92 0:0:0:0:0:ffff:8e12:645c
142.18.100.93 0:0:0:0:0:ffff:8e12:645d
142.18.100.94 0:0:0:0:0:ffff:8e12:645e
142.18.100.95 0:0:0:0:0:ffff:8e12:645f
142.18.100.96 0:0:0:0:0:ffff:8e12:6460
142.18.100.97 0:0:0:0:0:ffff:8e12:6461
142.18.100.98 0:0:0:0:0:ffff:8e12:6462
142.18.100.99 0:0:0:0:0:ffff:8e12:6463
142.18.100.100 0:0:0:0:0:ffff:8e12:6464
142.18.100.101 0:0:0:0:0:ffff:8e12:6465
142.18.100.102 0:0:0:0:0:ffff:8e12:6466
142.18.100.103 0:0:0:0:0:ffff:8e12:6467
142.18.100.104 0:0:0:0:0:ffff:8e12:6468
142.18.100.105 0:0:0:0:0:ffff:8e12:6469
142.18.100.106 0:0:0:0:0:ffff:8e12:646a
142.18.100.107 0:0:0:0:0:ffff:8e12:646b
142.18.100.108 0:0:0:0:0:ffff:8e12:646c
142.18.100.109 0:0:0:0:0:ffff:8e12:646d
142.18.100.110 0:0:0:0:0:ffff:8e12:646e
142.18.100.111 0:0:0:0:0:ffff:8e12:646f
142.18.100.112 0:0:0:0:0:ffff:8e12:6470
142.18.100.113 0:0:0:0:0:ffff:8e12:6471
142.18.100.114 0:0:0:0:0:ffff:8e12:6472
142.18.100.115 0:0:0:0:0:ffff:8e12:6473
142.18.100.116 0:0:0:0:0:ffff:8e12:6474
142.18.100.117 0:0:0:0:0:ffff:8e12:6475
142.18.100.118 0:0:0:0:0:ffff:8e12:6476
142.18.100.119 0:0:0:0:0:ffff:8e12:6477
142.18.100.120 0:0:0:0:0:ffff:8e12:6478


142.18.100.121 0:0:0:0:0:ffff:8e12:6479
142.18.100.122 0:0:0:0:0:ffff:8e12:647a
142.18.100.123 0:0:0:0:0:ffff:8e12:647b
142.18.100.124 0:0:0:0:0:ffff:8e12:647c
142.18.100.125 0:0:0:0:0:ffff:8e12:647d
142.18.100.126 0:0:0:0:0:ffff:8e12:647e
142.18.100.127 0:0:0:0:0:ffff:8e12:647f
142.18.100.128 0:0:0:0:0:ffff:8e12:6480
142.18.100.129 0:0:0:0:0:ffff:8e12:6481
142.18.100.130 0:0:0:0:0:ffff:8e12:6482
142.18.100.131 0:0:0:0:0:ffff:8e12:6483
142.18.100.132 0:0:0:0:0:ffff:8e12:6484
142.18.100.133 0:0:0:0:0:ffff:8e12:6485
142.18.100.134 0:0:0:0:0:ffff:8e12:6486
142.18.100.135 0:0:0:0:0:ffff:8e12:6487
142.18.100.136 0:0:0:0:0:ffff:8e12:6488
142.18.100.137 0:0:0:0:0:ffff:8e12:6489
142.18.100.138 0:0:0:0:0:ffff:8e12:648a
142.18.100.139 0:0:0:0:0:ffff:8e12:648b
142.18.100.140 0:0:0:0:0:ffff:8e12:648c
142.18.100.141 0:0:0:0:0:ffff:8e12:648d
142.18.100.142 0:0:0:0:0:ffff:8e12:648e
142.18.100.143 0:0:0:0:0:ffff:8e12:648f
142.18.100.144 0:0:0:0:0:ffff:8e12:6490
142.18.100.145 0:0:0:0:0:ffff:8e12:6491
142.18.100.146 0:0:0:0:0:ffff:8e12:6492
142.18.100.147 0:0:0:0:0:ffff:8e12:6493
142.18.100.148 0:0:0:0:0:ffff:8e12:6494
142.18.100.149 0:0:0:0:0:ffff:8e12:6495
142.18.100.150 0:0:0:0:0:ffff:8e12:6496
142.18.100.151 0:0:0:0:0:ffff:8e12:6497
142.18.100.152 0:0:0:0:0:ffff:8e12:6498
142.18.100.153 0:0:0:0:0:ffff:8e12:6499
142.18.100.154 0:0:0:0:0:ffff:8e12:649a
142.18.100.155 0:0:0:0:0:ffff:8e12:649b
142.18.100.156 0:0:0:0:0:ffff:8e12:649c
142.18.100.157 0:0:0:0:0:ffff:8e12:649d
142.18.100.158 0:0:0:0:0:ffff:8e12:649e
142.18.100.159 0:0:0:0:0:ffff:8e12:649f
142.18.100.160 0:0:0:0:0:ffff:8e12:64a0
142.18.100.161 0:0:0:0:0:ffff:8e12:64a1
142.18.100.162 0:0:0:0:0:ffff:8e12:64a2
142.18.100.163 0:0:0:0:0:ffff:8e12:64a3
142.18.100.164 0:0:0:0:0:ffff:8e12:64a4
142.18.100.165 0:0:0:0:0:ffff:8e12:64a5
142.18.100.166 0:0:0:0:0:ffff:8e12:64a6
142.18.100.167 0:0:0:0:0:ffff:8e12:64a7
142.18.100.168 0:0:0:0:0:ffff:8e12:64a8
142.18.100.169 0:0:0:0:0:ffff:8e12:64a9
142.18.100.170 0:0:0:0:0:ffff:8e12:64aa
142.18.100.171 0:0:0:0:0:ffff:8e12:64ab
142.18.100.172 0:0:0:0:0:ffff:8e12:64ac
142.18.100.173 0:0:0:0:0:ffff:8e12:64ad
142.18.100.174 0:0:0:0:0:ffff:8e12:64ae
142.18.100.175 0:0:0:0:0:ffff:8e12:64af
142.18.100.176 0:0:0:0:0:ffff:8e12:64b0
142.18.100.177 0:0:0:0:0:ffff:8e12:64b1
142.18.100.178 0:0:0:0:0:ffff:8e12:64b2
142.18.100.179 0:0:0:0:0:ffff:8e12:64b3
142.18.100.180 0:0:0:0:0:ffff:8e12:64b4


142.18.100.181 0:0:0:0:0:ffff:8e12:64b5
142.18.100.182 0:0:0:0:0:ffff:8e12:64b6
142.18.100.183 0:0:0:0:0:ffff:8e12:64b7
142.18.100.184 0:0:0:0:0:ffff:8e12:64b8
142.18.100.185 0:0:0:0:0:ffff:8e12:64b9
142.18.100.186 0:0:0:0:0:ffff:8e12:64ba
142.18.100.187 0:0:0:0:0:ffff:8e12:64bb
142.18.100.188 0:0:0:0:0:ffff:8e12:64bc
142.18.100.189 0:0:0:0:0:ffff:8e12:64bd
142.18.100.190 0:0:0:0:0:ffff:8e12:64be
142.18.100.191 0:0:0:0:0:ffff:8e12:64bf
142.18.100.192 0:0:0:0:0:ffff:8e12:64c0
142.18.100.193 0:0:0:0:0:ffff:8e12:64c1
142.18.100.194 0:0:0:0:0:ffff:8e12:64c2
142.18.100.195 0:0:0:0:0:ffff:8e12:64c3
142.18.100.196 0:0:0:0:0:ffff:8e12:64c4
142.18.100.197 0:0:0:0:0:ffff:8e12:64c5
142.18.100.198 0:0:0:0:0:ffff:8e12:64c6
142.18.100.199 0:0:0:0:0:ffff:8e12:64c7
142.18.100.200 0:0:0:0:0:ffff:8e12:64c8
142.18.100.201 0:0:0:0:0:ffff:8e12:64c9
142.18.100.202 0:0:0:0:0:ffff:8e12:64ca
142.18.100.203 0:0:0:0:0:ffff:8e12:64cb
142.18.100.204 0:0:0:0:0:ffff:8e12:64cc
142.18.100.205 0:0:0:0:0:ffff:8e12:64cd
142.18.100.206 0:0:0:0:0:ffff:8e12:64ce
142.18.100.207 0:0:0:0:0:ffff:8e12:64cf
142.18.100.208 0:0:0:0:0:ffff:8e12:64d0
142.18.100.209 0:0:0:0:0:ffff:8e12:64d1
142.18.100.210 0:0:0:0:0:ffff:8e12:64d2
142.18.100.211 0:0:0:0:0:ffff:8e12:64d3
142.18.100.212 0:0:0:0:0:ffff:8e12:64d4
142.18.100.213 0:0:0:0:0:ffff:8e12:64d5
142.18.100.214 0:0:0:0:0:ffff:8e12:64d6
142.18.100.215 0:0:0:0:0:ffff:8e12:64d7
142.18.100.216 0:0:0:0:0:ffff:8e12:64d8
142.18.100.217 0:0:0:0:0:ffff:8e12:64d9
142.18.100.218 0:0:0:0:0:ffff:8e12:64da
142.18.100.219 0:0:0:0:0:ffff:8e12:64db
142.18.100.220 0:0:0:0:0:ffff:8e12:64dc
142.18.100.221 0:0:0:0:0:ffff:8e12:64dd
142.18.100.222 0:0:0:0:0:ffff:8e12:64de
142.18.100.223 0:0:0:0:0:ffff:8e12:64df
142.18.100.224 0:0:0:0:0:ffff:8e12:64e0
142.18.100.225 0:0:0:0:0:ffff:8e12:64e1
142.18.100.226 0:0:0:0:0:ffff:8e12:64e2
142.18.100.227 0:0:0:0:0:ffff:8e12:64e3
142.18.100.228 0:0:0:0:0:ffff:8e12:64e4
142.18.100.229 0:0:0:0:0:ffff:8e12:64e5
142.18.100.230 0:0:0:0:0:ffff:8e12:64e6
142.18.100.231 0:0:0:0:0:ffff:8e12:64e7
142.18.100.232 0:0:0:0:0:ffff:8e12:64e8
142.18.100.233 0:0:0:0:0:ffff:8e12:64e9
142.18.100.234 0:0:0:0:0:ffff:8e12:64ea
142.18.100.235 0:0:0:0:0:ffff:8e12:64eb
142.18.100.236 0:0:0:0:0:ffff:8e12:64ec
142.18.100.237 0:0:0:0:0:ffff:8e12:64ed
142.18.100.238 0:0:0:0:0:ffff:8e12:64ee
142.18.100.239 0:0:0:0:0:ffff:8e12:64ef
142.18.100.240 0:0:0:0:0:ffff:8e12:64f0
142.18.100.241 0:0:0:0:0:ffff:8e12:64f1
142.18.100.242 0:0:0:0:0:ffff:8e12:64f2
142.18.100.243 0:0:0:0:0:ffff:8e12:64f3
142.18.100.244 0:0:0:0:0:ffff:8e12:64f4
142.18.100.245 0:0:0:0:0:ffff:8e12:64f5
142.18.100.246 0:0:0:0:0:ffff:8e12:64f6
142.18.100.247 0:0:0:0:0:ffff:8e12:64f7
142.18.100.248 0:0:0:0:0:ffff:8e12:64f8
142.18.100.249 0:0:0:0:0:ffff:8e12:64f9
142.18.100.250 0:0:0:0:0:ffff:8e12:64fa
142.18.100.251 0:0:0:0:0:ffff:8e12:64fb
142.18.100.252 0:0:0:0:0:ffff:8e12:64fc
142.18.100.253 0:0:0:0:0:ffff:8e12:64fd
142.18.100.254 0:0:0:0:0:ffff:8e12:64fe
142.18.100.255 0:0:0:0:0:ffff:8e12:64ff


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.