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
205.38.100.1 0:0:0:0:0:ffff:cd26:6401
205.38.100.2 0:0:0:0:0:ffff:cd26:6402
205.38.100.3 0:0:0:0:0:ffff:cd26:6403
205.38.100.4 0:0:0:0:0:ffff:cd26:6404
205.38.100.5 0:0:0:0:0:ffff:cd26:6405
205.38.100.6 0:0:0:0:0:ffff:cd26:6406
205.38.100.7 0:0:0:0:0:ffff:cd26:6407
205.38.100.8 0:0:0:0:0:ffff:cd26:6408
205.38.100.9 0:0:0:0:0:ffff:cd26:6409
205.38.100.10 0:0:0:0:0:ffff:cd26:640a
205.38.100.11 0:0:0:0:0:ffff:cd26:640b
205.38.100.12 0:0:0:0:0:ffff:cd26:640c
205.38.100.13 0:0:0:0:0:ffff:cd26:640d
205.38.100.14 0:0:0:0:0:ffff:cd26:640e
205.38.100.15 0:0:0:0:0:ffff:cd26:640f
205.38.100.16 0:0:0:0:0:ffff:cd26:6410
205.38.100.17 0:0:0:0:0:ffff:cd26:6411
205.38.100.18 0:0:0:0:0:ffff:cd26:6412
205.38.100.19 0:0:0:0:0:ffff:cd26:6413
205.38.100.20 0:0:0:0:0:ffff:cd26:6414
205.38.100.21 0:0:0:0:0:ffff:cd26:6415
205.38.100.22 0:0:0:0:0:ffff:cd26:6416
205.38.100.23 0:0:0:0:0:ffff:cd26:6417
205.38.100.24 0:0:0:0:0:ffff:cd26:6418
205.38.100.25 0:0:0:0:0:ffff:cd26:6419
205.38.100.26 0:0:0:0:0:ffff:cd26:641a
205.38.100.27 0:0:0:0:0:ffff:cd26:641b
205.38.100.28 0:0:0:0:0:ffff:cd26:641c
205.38.100.29 0:0:0:0:0:ffff:cd26:641d
205.38.100.30 0:0:0:0:0:ffff:cd26:641e
205.38.100.31 0:0:0:0:0:ffff:cd26:641f
205.38.100.32 0:0:0:0:0:ffff:cd26:6420
205.38.100.33 0:0:0:0:0:ffff:cd26:6421
205.38.100.34 0:0:0:0:0:ffff:cd26:6422
205.38.100.35 0:0:0:0:0:ffff:cd26:6423
205.38.100.36 0:0:0:0:0:ffff:cd26:6424
205.38.100.37 0:0:0:0:0:ffff:cd26:6425
205.38.100.38 0:0:0:0:0:ffff:cd26:6426
205.38.100.39 0:0:0:0:0:ffff:cd26:6427
205.38.100.40 0:0:0:0:0:ffff:cd26:6428
205.38.100.41 0:0:0:0:0:ffff:cd26:6429
205.38.100.42 0:0:0:0:0:ffff:cd26:642a
205.38.100.43 0:0:0:0:0:ffff:cd26:642b
205.38.100.44 0:0:0:0:0:ffff:cd26:642c
205.38.100.45 0:0:0:0:0:ffff:cd26:642d
205.38.100.46 0:0:0:0:0:ffff:cd26:642e
205.38.100.47 0:0:0:0:0:ffff:cd26:642f
205.38.100.48 0:0:0:0:0:ffff:cd26:6430
205.38.100.49 0:0:0:0:0:ffff:cd26:6431
205.38.100.50 0:0:0:0:0:ffff:cd26:6432
205.38.100.51 0:0:0:0:0:ffff:cd26:6433
205.38.100.52 0:0:0:0:0:ffff:cd26:6434
205.38.100.53 0:0:0:0:0:ffff:cd26:6435
205.38.100.54 0:0:0:0:0:ffff:cd26:6436
205.38.100.55 0:0:0:0:0:ffff:cd26:6437
205.38.100.56 0:0:0:0:0:ffff:cd26:6438
205.38.100.57 0:0:0:0:0:ffff:cd26:6439
205.38.100.58 0:0:0:0:0:ffff:cd26:643a
205.38.100.59 0:0:0:0:0:ffff:cd26:643b
205.38.100.60 0:0:0:0:0:ffff:cd26:643c


205.38.100.61 0:0:0:0:0:ffff:cd26:643d
205.38.100.62 0:0:0:0:0:ffff:cd26:643e
205.38.100.63 0:0:0:0:0:ffff:cd26:643f
205.38.100.64 0:0:0:0:0:ffff:cd26:6440
205.38.100.65 0:0:0:0:0:ffff:cd26:6441
205.38.100.66 0:0:0:0:0:ffff:cd26:6442
205.38.100.67 0:0:0:0:0:ffff:cd26:6443
205.38.100.68 0:0:0:0:0:ffff:cd26:6444
205.38.100.69 0:0:0:0:0:ffff:cd26:6445
205.38.100.70 0:0:0:0:0:ffff:cd26:6446
205.38.100.71 0:0:0:0:0:ffff:cd26:6447
205.38.100.72 0:0:0:0:0:ffff:cd26:6448
205.38.100.73 0:0:0:0:0:ffff:cd26:6449
205.38.100.74 0:0:0:0:0:ffff:cd26:644a
205.38.100.75 0:0:0:0:0:ffff:cd26:644b
205.38.100.76 0:0:0:0:0:ffff:cd26:644c
205.38.100.77 0:0:0:0:0:ffff:cd26:644d
205.38.100.78 0:0:0:0:0:ffff:cd26:644e
205.38.100.79 0:0:0:0:0:ffff:cd26:644f
205.38.100.80 0:0:0:0:0:ffff:cd26:6450
205.38.100.81 0:0:0:0:0:ffff:cd26:6451
205.38.100.82 0:0:0:0:0:ffff:cd26:6452
205.38.100.83 0:0:0:0:0:ffff:cd26:6453
205.38.100.84 0:0:0:0:0:ffff:cd26:6454
205.38.100.85 0:0:0:0:0:ffff:cd26:6455
205.38.100.86 0:0:0:0:0:ffff:cd26:6456
205.38.100.87 0:0:0:0:0:ffff:cd26:6457
205.38.100.88 0:0:0:0:0:ffff:cd26:6458
205.38.100.89 0:0:0:0:0:ffff:cd26:6459
205.38.100.90 0:0:0:0:0:ffff:cd26:645a
205.38.100.91 0:0:0:0:0:ffff:cd26:645b
205.38.100.92 0:0:0:0:0:ffff:cd26:645c
205.38.100.93 0:0:0:0:0:ffff:cd26:645d
205.38.100.94 0:0:0:0:0:ffff:cd26:645e
205.38.100.95 0:0:0:0:0:ffff:cd26:645f
205.38.100.96 0:0:0:0:0:ffff:cd26:6460
205.38.100.97 0:0:0:0:0:ffff:cd26:6461
205.38.100.98 0:0:0:0:0:ffff:cd26:6462
205.38.100.99 0:0:0:0:0:ffff:cd26:6463
205.38.100.100 0:0:0:0:0:ffff:cd26:6464
205.38.100.101 0:0:0:0:0:ffff:cd26:6465
205.38.100.102 0:0:0:0:0:ffff:cd26:6466
205.38.100.103 0:0:0:0:0:ffff:cd26:6467
205.38.100.104 0:0:0:0:0:ffff:cd26:6468
205.38.100.105 0:0:0:0:0:ffff:cd26:6469
205.38.100.106 0:0:0:0:0:ffff:cd26:646a
205.38.100.107 0:0:0:0:0:ffff:cd26:646b
205.38.100.108 0:0:0:0:0:ffff:cd26:646c
205.38.100.109 0:0:0:0:0:ffff:cd26:646d
205.38.100.110 0:0:0:0:0:ffff:cd26:646e
205.38.100.111 0:0:0:0:0:ffff:cd26:646f
205.38.100.112 0:0:0:0:0:ffff:cd26:6470
205.38.100.113 0:0:0:0:0:ffff:cd26:6471
205.38.100.114 0:0:0:0:0:ffff:cd26:6472
205.38.100.115 0:0:0:0:0:ffff:cd26:6473
205.38.100.116 0:0:0:0:0:ffff:cd26:6474
205.38.100.117 0:0:0:0:0:ffff:cd26:6475
205.38.100.118 0:0:0:0:0:ffff:cd26:6476
205.38.100.119 0:0:0:0:0:ffff:cd26:6477
205.38.100.120 0:0:0:0:0:ffff:cd26:6478


205.38.100.121 0:0:0:0:0:ffff:cd26:6479
205.38.100.122 0:0:0:0:0:ffff:cd26:647a
205.38.100.123 0:0:0:0:0:ffff:cd26:647b
205.38.100.124 0:0:0:0:0:ffff:cd26:647c
205.38.100.125 0:0:0:0:0:ffff:cd26:647d
205.38.100.126 0:0:0:0:0:ffff:cd26:647e
205.38.100.127 0:0:0:0:0:ffff:cd26:647f
205.38.100.128 0:0:0:0:0:ffff:cd26:6480
205.38.100.129 0:0:0:0:0:ffff:cd26:6481
205.38.100.130 0:0:0:0:0:ffff:cd26:6482
205.38.100.131 0:0:0:0:0:ffff:cd26:6483
205.38.100.132 0:0:0:0:0:ffff:cd26:6484
205.38.100.133 0:0:0:0:0:ffff:cd26:6485
205.38.100.134 0:0:0:0:0:ffff:cd26:6486
205.38.100.135 0:0:0:0:0:ffff:cd26:6487
205.38.100.136 0:0:0:0:0:ffff:cd26:6488
205.38.100.137 0:0:0:0:0:ffff:cd26:6489
205.38.100.138 0:0:0:0:0:ffff:cd26:648a
205.38.100.139 0:0:0:0:0:ffff:cd26:648b
205.38.100.140 0:0:0:0:0:ffff:cd26:648c
205.38.100.141 0:0:0:0:0:ffff:cd26:648d
205.38.100.142 0:0:0:0:0:ffff:cd26:648e
205.38.100.143 0:0:0:0:0:ffff:cd26:648f
205.38.100.144 0:0:0:0:0:ffff:cd26:6490
205.38.100.145 0:0:0:0:0:ffff:cd26:6491
205.38.100.146 0:0:0:0:0:ffff:cd26:6492
205.38.100.147 0:0:0:0:0:ffff:cd26:6493
205.38.100.148 0:0:0:0:0:ffff:cd26:6494
205.38.100.149 0:0:0:0:0:ffff:cd26:6495
205.38.100.150 0:0:0:0:0:ffff:cd26:6496
205.38.100.151 0:0:0:0:0:ffff:cd26:6497
205.38.100.152 0:0:0:0:0:ffff:cd26:6498
205.38.100.153 0:0:0:0:0:ffff:cd26:6499
205.38.100.154 0:0:0:0:0:ffff:cd26:649a
205.38.100.155 0:0:0:0:0:ffff:cd26:649b
205.38.100.156 0:0:0:0:0:ffff:cd26:649c
205.38.100.157 0:0:0:0:0:ffff:cd26:649d
205.38.100.158 0:0:0:0:0:ffff:cd26:649e
205.38.100.159 0:0:0:0:0:ffff:cd26:649f
205.38.100.160 0:0:0:0:0:ffff:cd26:64a0
205.38.100.161 0:0:0:0:0:ffff:cd26:64a1
205.38.100.162 0:0:0:0:0:ffff:cd26:64a2
205.38.100.163 0:0:0:0:0:ffff:cd26:64a3
205.38.100.164 0:0:0:0:0:ffff:cd26:64a4
205.38.100.165 0:0:0:0:0:ffff:cd26:64a5
205.38.100.166 0:0:0:0:0:ffff:cd26:64a6
205.38.100.167 0:0:0:0:0:ffff:cd26:64a7
205.38.100.168 0:0:0:0:0:ffff:cd26:64a8
205.38.100.169 0:0:0:0:0:ffff:cd26:64a9
205.38.100.170 0:0:0:0:0:ffff:cd26:64aa
205.38.100.171 0:0:0:0:0:ffff:cd26:64ab
205.38.100.172 0:0:0:0:0:ffff:cd26:64ac
205.38.100.173 0:0:0:0:0:ffff:cd26:64ad
205.38.100.174 0:0:0:0:0:ffff:cd26:64ae
205.38.100.175 0:0:0:0:0:ffff:cd26:64af
205.38.100.176 0:0:0:0:0:ffff:cd26:64b0
205.38.100.177 0:0:0:0:0:ffff:cd26:64b1
205.38.100.178 0:0:0:0:0:ffff:cd26:64b2
205.38.100.179 0:0:0:0:0:ffff:cd26:64b3
205.38.100.180 0:0:0:0:0:ffff:cd26:64b4


205.38.100.181 0:0:0:0:0:ffff:cd26:64b5
205.38.100.182 0:0:0:0:0:ffff:cd26:64b6
205.38.100.183 0:0:0:0:0:ffff:cd26:64b7
205.38.100.184 0:0:0:0:0:ffff:cd26:64b8
205.38.100.185 0:0:0:0:0:ffff:cd26:64b9
205.38.100.186 0:0:0:0:0:ffff:cd26:64ba
205.38.100.187 0:0:0:0:0:ffff:cd26:64bb
205.38.100.188 0:0:0:0:0:ffff:cd26:64bc
205.38.100.189 0:0:0:0:0:ffff:cd26:64bd
205.38.100.190 0:0:0:0:0:ffff:cd26:64be
205.38.100.191 0:0:0:0:0:ffff:cd26:64bf
205.38.100.192 0:0:0:0:0:ffff:cd26:64c0
205.38.100.193 0:0:0:0:0:ffff:cd26:64c1
205.38.100.194 0:0:0:0:0:ffff:cd26:64c2
205.38.100.195 0:0:0:0:0:ffff:cd26:64c3
205.38.100.196 0:0:0:0:0:ffff:cd26:64c4
205.38.100.197 0:0:0:0:0:ffff:cd26:64c5
205.38.100.198 0:0:0:0:0:ffff:cd26:64c6
205.38.100.199 0:0:0:0:0:ffff:cd26:64c7
205.38.100.200 0:0:0:0:0:ffff:cd26:64c8
205.38.100.201 0:0:0:0:0:ffff:cd26:64c9
205.38.100.202 0:0:0:0:0:ffff:cd26:64ca
205.38.100.203 0:0:0:0:0:ffff:cd26:64cb
205.38.100.204 0:0:0:0:0:ffff:cd26:64cc
205.38.100.205 0:0:0:0:0:ffff:cd26:64cd
205.38.100.206 0:0:0:0:0:ffff:cd26:64ce
205.38.100.207 0:0:0:0:0:ffff:cd26:64cf
205.38.100.208 0:0:0:0:0:ffff:cd26:64d0
205.38.100.209 0:0:0:0:0:ffff:cd26:64d1
205.38.100.210 0:0:0:0:0:ffff:cd26:64d2
205.38.100.211 0:0:0:0:0:ffff:cd26:64d3
205.38.100.212 0:0:0:0:0:ffff:cd26:64d4
205.38.100.213 0:0:0:0:0:ffff:cd26:64d5
205.38.100.214 0:0:0:0:0:ffff:cd26:64d6
205.38.100.215 0:0:0:0:0:ffff:cd26:64d7
205.38.100.216 0:0:0:0:0:ffff:cd26:64d8
205.38.100.217 0:0:0:0:0:ffff:cd26:64d9
205.38.100.218 0:0:0:0:0:ffff:cd26:64da
205.38.100.219 0:0:0:0:0:ffff:cd26:64db
205.38.100.220 0:0:0:0:0:ffff:cd26:64dc
205.38.100.221 0:0:0:0:0:ffff:cd26:64dd
205.38.100.222 0:0:0:0:0:ffff:cd26:64de
205.38.100.223 0:0:0:0:0:ffff:cd26:64df
205.38.100.224 0:0:0:0:0:ffff:cd26:64e0
205.38.100.225 0:0:0:0:0:ffff:cd26:64e1
205.38.100.226 0:0:0:0:0:ffff:cd26:64e2
205.38.100.227 0:0:0:0:0:ffff:cd26:64e3
205.38.100.228 0:0:0:0:0:ffff:cd26:64e4
205.38.100.229 0:0:0:0:0:ffff:cd26:64e5
205.38.100.230 0:0:0:0:0:ffff:cd26:64e6
205.38.100.231 0:0:0:0:0:ffff:cd26:64e7
205.38.100.232 0:0:0:0:0:ffff:cd26:64e8
205.38.100.233 0:0:0:0:0:ffff:cd26:64e9
205.38.100.234 0:0:0:0:0:ffff:cd26:64ea
205.38.100.235 0:0:0:0:0:ffff:cd26:64eb
205.38.100.236 0:0:0:0:0:ffff:cd26:64ec
205.38.100.237 0:0:0:0:0:ffff:cd26:64ed
205.38.100.238 0:0:0:0:0:ffff:cd26:64ee
205.38.100.239 0:0:0:0:0:ffff:cd26:64ef
205.38.100.240 0:0:0:0:0:ffff:cd26:64f0
205.38.100.241 0:0:0:0:0:ffff:cd26:64f1
205.38.100.242 0:0:0:0:0:ffff:cd26:64f2
205.38.100.243 0:0:0:0:0:ffff:cd26:64f3
205.38.100.244 0:0:0:0:0:ffff:cd26:64f4
205.38.100.245 0:0:0:0:0:ffff:cd26:64f5
205.38.100.246 0:0:0:0:0:ffff:cd26:64f6
205.38.100.247 0:0:0:0:0:ffff:cd26:64f7
205.38.100.248 0:0:0:0:0:ffff:cd26:64f8
205.38.100.249 0:0:0:0:0:ffff:cd26:64f9
205.38.100.250 0:0:0:0:0:ffff:cd26:64fa
205.38.100.251 0:0:0:0:0:ffff:cd26:64fb
205.38.100.252 0:0:0:0:0:ffff:cd26:64fc
205.38.100.253 0:0:0:0:0:ffff:cd26:64fd
205.38.100.254 0:0:0:0:0:ffff:cd26:64fe
205.38.100.255 0:0:0:0:0:ffff:cd26:64ff


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.