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
128.158.100.1 0:0:0:0:0:ffff:809e:6401
128.158.100.2 0:0:0:0:0:ffff:809e:6402
128.158.100.3 0:0:0:0:0:ffff:809e:6403
128.158.100.4 0:0:0:0:0:ffff:809e:6404
128.158.100.5 0:0:0:0:0:ffff:809e:6405
128.158.100.6 0:0:0:0:0:ffff:809e:6406
128.158.100.7 0:0:0:0:0:ffff:809e:6407
128.158.100.8 0:0:0:0:0:ffff:809e:6408
128.158.100.9 0:0:0:0:0:ffff:809e:6409
128.158.100.10 0:0:0:0:0:ffff:809e:640a
128.158.100.11 0:0:0:0:0:ffff:809e:640b
128.158.100.12 0:0:0:0:0:ffff:809e:640c
128.158.100.13 0:0:0:0:0:ffff:809e:640d
128.158.100.14 0:0:0:0:0:ffff:809e:640e
128.158.100.15 0:0:0:0:0:ffff:809e:640f
128.158.100.16 0:0:0:0:0:ffff:809e:6410
128.158.100.17 0:0:0:0:0:ffff:809e:6411
128.158.100.18 0:0:0:0:0:ffff:809e:6412
128.158.100.19 0:0:0:0:0:ffff:809e:6413
128.158.100.20 0:0:0:0:0:ffff:809e:6414
128.158.100.21 0:0:0:0:0:ffff:809e:6415
128.158.100.22 0:0:0:0:0:ffff:809e:6416
128.158.100.23 0:0:0:0:0:ffff:809e:6417
128.158.100.24 0:0:0:0:0:ffff:809e:6418
128.158.100.25 0:0:0:0:0:ffff:809e:6419
128.158.100.26 0:0:0:0:0:ffff:809e:641a
128.158.100.27 0:0:0:0:0:ffff:809e:641b
128.158.100.28 0:0:0:0:0:ffff:809e:641c
128.158.100.29 0:0:0:0:0:ffff:809e:641d
128.158.100.30 0:0:0:0:0:ffff:809e:641e
128.158.100.31 0:0:0:0:0:ffff:809e:641f
128.158.100.32 0:0:0:0:0:ffff:809e:6420
128.158.100.33 0:0:0:0:0:ffff:809e:6421
128.158.100.34 0:0:0:0:0:ffff:809e:6422
128.158.100.35 0:0:0:0:0:ffff:809e:6423
128.158.100.36 0:0:0:0:0:ffff:809e:6424
128.158.100.37 0:0:0:0:0:ffff:809e:6425
128.158.100.38 0:0:0:0:0:ffff:809e:6426
128.158.100.39 0:0:0:0:0:ffff:809e:6427
128.158.100.40 0:0:0:0:0:ffff:809e:6428
128.158.100.41 0:0:0:0:0:ffff:809e:6429
128.158.100.42 0:0:0:0:0:ffff:809e:642a
128.158.100.43 0:0:0:0:0:ffff:809e:642b
128.158.100.44 0:0:0:0:0:ffff:809e:642c
128.158.100.45 0:0:0:0:0:ffff:809e:642d
128.158.100.46 0:0:0:0:0:ffff:809e:642e
128.158.100.47 0:0:0:0:0:ffff:809e:642f
128.158.100.48 0:0:0:0:0:ffff:809e:6430
128.158.100.49 0:0:0:0:0:ffff:809e:6431
128.158.100.50 0:0:0:0:0:ffff:809e:6432
128.158.100.51 0:0:0:0:0:ffff:809e:6433
128.158.100.52 0:0:0:0:0:ffff:809e:6434
128.158.100.53 0:0:0:0:0:ffff:809e:6435
128.158.100.54 0:0:0:0:0:ffff:809e:6436
128.158.100.55 0:0:0:0:0:ffff:809e:6437
128.158.100.56 0:0:0:0:0:ffff:809e:6438
128.158.100.57 0:0:0:0:0:ffff:809e:6439
128.158.100.58 0:0:0:0:0:ffff:809e:643a
128.158.100.59 0:0:0:0:0:ffff:809e:643b
128.158.100.60 0:0:0:0:0:ffff:809e:643c


128.158.100.61 0:0:0:0:0:ffff:809e:643d
128.158.100.62 0:0:0:0:0:ffff:809e:643e
128.158.100.63 0:0:0:0:0:ffff:809e:643f
128.158.100.64 0:0:0:0:0:ffff:809e:6440
128.158.100.65 0:0:0:0:0:ffff:809e:6441
128.158.100.66 0:0:0:0:0:ffff:809e:6442
128.158.100.67 0:0:0:0:0:ffff:809e:6443
128.158.100.68 0:0:0:0:0:ffff:809e:6444
128.158.100.69 0:0:0:0:0:ffff:809e:6445
128.158.100.70 0:0:0:0:0:ffff:809e:6446
128.158.100.71 0:0:0:0:0:ffff:809e:6447
128.158.100.72 0:0:0:0:0:ffff:809e:6448
128.158.100.73 0:0:0:0:0:ffff:809e:6449
128.158.100.74 0:0:0:0:0:ffff:809e:644a
128.158.100.75 0:0:0:0:0:ffff:809e:644b
128.158.100.76 0:0:0:0:0:ffff:809e:644c
128.158.100.77 0:0:0:0:0:ffff:809e:644d
128.158.100.78 0:0:0:0:0:ffff:809e:644e
128.158.100.79 0:0:0:0:0:ffff:809e:644f
128.158.100.80 0:0:0:0:0:ffff:809e:6450
128.158.100.81 0:0:0:0:0:ffff:809e:6451
128.158.100.82 0:0:0:0:0:ffff:809e:6452
128.158.100.83 0:0:0:0:0:ffff:809e:6453
128.158.100.84 0:0:0:0:0:ffff:809e:6454
128.158.100.85 0:0:0:0:0:ffff:809e:6455
128.158.100.86 0:0:0:0:0:ffff:809e:6456
128.158.100.87 0:0:0:0:0:ffff:809e:6457
128.158.100.88 0:0:0:0:0:ffff:809e:6458
128.158.100.89 0:0:0:0:0:ffff:809e:6459
128.158.100.90 0:0:0:0:0:ffff:809e:645a
128.158.100.91 0:0:0:0:0:ffff:809e:645b
128.158.100.92 0:0:0:0:0:ffff:809e:645c
128.158.100.93 0:0:0:0:0:ffff:809e:645d
128.158.100.94 0:0:0:0:0:ffff:809e:645e
128.158.100.95 0:0:0:0:0:ffff:809e:645f
128.158.100.96 0:0:0:0:0:ffff:809e:6460
128.158.100.97 0:0:0:0:0:ffff:809e:6461
128.158.100.98 0:0:0:0:0:ffff:809e:6462
128.158.100.99 0:0:0:0:0:ffff:809e:6463
128.158.100.100 0:0:0:0:0:ffff:809e:6464
128.158.100.101 0:0:0:0:0:ffff:809e:6465
128.158.100.102 0:0:0:0:0:ffff:809e:6466
128.158.100.103 0:0:0:0:0:ffff:809e:6467
128.158.100.104 0:0:0:0:0:ffff:809e:6468
128.158.100.105 0:0:0:0:0:ffff:809e:6469
128.158.100.106 0:0:0:0:0:ffff:809e:646a
128.158.100.107 0:0:0:0:0:ffff:809e:646b
128.158.100.108 0:0:0:0:0:ffff:809e:646c
128.158.100.109 0:0:0:0:0:ffff:809e:646d
128.158.100.110 0:0:0:0:0:ffff:809e:646e
128.158.100.111 0:0:0:0:0:ffff:809e:646f
128.158.100.112 0:0:0:0:0:ffff:809e:6470
128.158.100.113 0:0:0:0:0:ffff:809e:6471
128.158.100.114 0:0:0:0:0:ffff:809e:6472
128.158.100.115 0:0:0:0:0:ffff:809e:6473
128.158.100.116 0:0:0:0:0:ffff:809e:6474
128.158.100.117 0:0:0:0:0:ffff:809e:6475
128.158.100.118 0:0:0:0:0:ffff:809e:6476
128.158.100.119 0:0:0:0:0:ffff:809e:6477
128.158.100.120 0:0:0:0:0:ffff:809e:6478


128.158.100.121 0:0:0:0:0:ffff:809e:6479
128.158.100.122 0:0:0:0:0:ffff:809e:647a
128.158.100.123 0:0:0:0:0:ffff:809e:647b
128.158.100.124 0:0:0:0:0:ffff:809e:647c
128.158.100.125 0:0:0:0:0:ffff:809e:647d
128.158.100.126 0:0:0:0:0:ffff:809e:647e
128.158.100.127 0:0:0:0:0:ffff:809e:647f
128.158.100.128 0:0:0:0:0:ffff:809e:6480
128.158.100.129 0:0:0:0:0:ffff:809e:6481
128.158.100.130 0:0:0:0:0:ffff:809e:6482
128.158.100.131 0:0:0:0:0:ffff:809e:6483
128.158.100.132 0:0:0:0:0:ffff:809e:6484
128.158.100.133 0:0:0:0:0:ffff:809e:6485
128.158.100.134 0:0:0:0:0:ffff:809e:6486
128.158.100.135 0:0:0:0:0:ffff:809e:6487
128.158.100.136 0:0:0:0:0:ffff:809e:6488
128.158.100.137 0:0:0:0:0:ffff:809e:6489
128.158.100.138 0:0:0:0:0:ffff:809e:648a
128.158.100.139 0:0:0:0:0:ffff:809e:648b
128.158.100.140 0:0:0:0:0:ffff:809e:648c
128.158.100.141 0:0:0:0:0:ffff:809e:648d
128.158.100.142 0:0:0:0:0:ffff:809e:648e
128.158.100.143 0:0:0:0:0:ffff:809e:648f
128.158.100.144 0:0:0:0:0:ffff:809e:6490
128.158.100.145 0:0:0:0:0:ffff:809e:6491
128.158.100.146 0:0:0:0:0:ffff:809e:6492
128.158.100.147 0:0:0:0:0:ffff:809e:6493
128.158.100.148 0:0:0:0:0:ffff:809e:6494
128.158.100.149 0:0:0:0:0:ffff:809e:6495
128.158.100.150 0:0:0:0:0:ffff:809e:6496
128.158.100.151 0:0:0:0:0:ffff:809e:6497
128.158.100.152 0:0:0:0:0:ffff:809e:6498
128.158.100.153 0:0:0:0:0:ffff:809e:6499
128.158.100.154 0:0:0:0:0:ffff:809e:649a
128.158.100.155 0:0:0:0:0:ffff:809e:649b
128.158.100.156 0:0:0:0:0:ffff:809e:649c
128.158.100.157 0:0:0:0:0:ffff:809e:649d
128.158.100.158 0:0:0:0:0:ffff:809e:649e
128.158.100.159 0:0:0:0:0:ffff:809e:649f
128.158.100.160 0:0:0:0:0:ffff:809e:64a0
128.158.100.161 0:0:0:0:0:ffff:809e:64a1
128.158.100.162 0:0:0:0:0:ffff:809e:64a2
128.158.100.163 0:0:0:0:0:ffff:809e:64a3
128.158.100.164 0:0:0:0:0:ffff:809e:64a4
128.158.100.165 0:0:0:0:0:ffff:809e:64a5
128.158.100.166 0:0:0:0:0:ffff:809e:64a6
128.158.100.167 0:0:0:0:0:ffff:809e:64a7
128.158.100.168 0:0:0:0:0:ffff:809e:64a8
128.158.100.169 0:0:0:0:0:ffff:809e:64a9
128.158.100.170 0:0:0:0:0:ffff:809e:64aa
128.158.100.171 0:0:0:0:0:ffff:809e:64ab
128.158.100.172 0:0:0:0:0:ffff:809e:64ac
128.158.100.173 0:0:0:0:0:ffff:809e:64ad
128.158.100.174 0:0:0:0:0:ffff:809e:64ae
128.158.100.175 0:0:0:0:0:ffff:809e:64af
128.158.100.176 0:0:0:0:0:ffff:809e:64b0
128.158.100.177 0:0:0:0:0:ffff:809e:64b1
128.158.100.178 0:0:0:0:0:ffff:809e:64b2
128.158.100.179 0:0:0:0:0:ffff:809e:64b3
128.158.100.180 0:0:0:0:0:ffff:809e:64b4


128.158.100.181 0:0:0:0:0:ffff:809e:64b5
128.158.100.182 0:0:0:0:0:ffff:809e:64b6
128.158.100.183 0:0:0:0:0:ffff:809e:64b7
128.158.100.184 0:0:0:0:0:ffff:809e:64b8
128.158.100.185 0:0:0:0:0:ffff:809e:64b9
128.158.100.186 0:0:0:0:0:ffff:809e:64ba
128.158.100.187 0:0:0:0:0:ffff:809e:64bb
128.158.100.188 0:0:0:0:0:ffff:809e:64bc
128.158.100.189 0:0:0:0:0:ffff:809e:64bd
128.158.100.190 0:0:0:0:0:ffff:809e:64be
128.158.100.191 0:0:0:0:0:ffff:809e:64bf
128.158.100.192 0:0:0:0:0:ffff:809e:64c0
128.158.100.193 0:0:0:0:0:ffff:809e:64c1
128.158.100.194 0:0:0:0:0:ffff:809e:64c2
128.158.100.195 0:0:0:0:0:ffff:809e:64c3
128.158.100.196 0:0:0:0:0:ffff:809e:64c4
128.158.100.197 0:0:0:0:0:ffff:809e:64c5
128.158.100.198 0:0:0:0:0:ffff:809e:64c6
128.158.100.199 0:0:0:0:0:ffff:809e:64c7
128.158.100.200 0:0:0:0:0:ffff:809e:64c8
128.158.100.201 0:0:0:0:0:ffff:809e:64c9
128.158.100.202 0:0:0:0:0:ffff:809e:64ca
128.158.100.203 0:0:0:0:0:ffff:809e:64cb
128.158.100.204 0:0:0:0:0:ffff:809e:64cc
128.158.100.205 0:0:0:0:0:ffff:809e:64cd
128.158.100.206 0:0:0:0:0:ffff:809e:64ce
128.158.100.207 0:0:0:0:0:ffff:809e:64cf
128.158.100.208 0:0:0:0:0:ffff:809e:64d0
128.158.100.209 0:0:0:0:0:ffff:809e:64d1
128.158.100.210 0:0:0:0:0:ffff:809e:64d2
128.158.100.211 0:0:0:0:0:ffff:809e:64d3
128.158.100.212 0:0:0:0:0:ffff:809e:64d4
128.158.100.213 0:0:0:0:0:ffff:809e:64d5
128.158.100.214 0:0:0:0:0:ffff:809e:64d6
128.158.100.215 0:0:0:0:0:ffff:809e:64d7
128.158.100.216 0:0:0:0:0:ffff:809e:64d8
128.158.100.217 0:0:0:0:0:ffff:809e:64d9
128.158.100.218 0:0:0:0:0:ffff:809e:64da
128.158.100.219 0:0:0:0:0:ffff:809e:64db
128.158.100.220 0:0:0:0:0:ffff:809e:64dc
128.158.100.221 0:0:0:0:0:ffff:809e:64dd
128.158.100.222 0:0:0:0:0:ffff:809e:64de
128.158.100.223 0:0:0:0:0:ffff:809e:64df
128.158.100.224 0:0:0:0:0:ffff:809e:64e0
128.158.100.225 0:0:0:0:0:ffff:809e:64e1
128.158.100.226 0:0:0:0:0:ffff:809e:64e2
128.158.100.227 0:0:0:0:0:ffff:809e:64e3
128.158.100.228 0:0:0:0:0:ffff:809e:64e4
128.158.100.229 0:0:0:0:0:ffff:809e:64e5
128.158.100.230 0:0:0:0:0:ffff:809e:64e6
128.158.100.231 0:0:0:0:0:ffff:809e:64e7
128.158.100.232 0:0:0:0:0:ffff:809e:64e8
128.158.100.233 0:0:0:0:0:ffff:809e:64e9
128.158.100.234 0:0:0:0:0:ffff:809e:64ea
128.158.100.235 0:0:0:0:0:ffff:809e:64eb
128.158.100.236 0:0:0:0:0:ffff:809e:64ec
128.158.100.237 0:0:0:0:0:ffff:809e:64ed
128.158.100.238 0:0:0:0:0:ffff:809e:64ee
128.158.100.239 0:0:0:0:0:ffff:809e:64ef
128.158.100.240 0:0:0:0:0:ffff:809e:64f0
128.158.100.241 0:0:0:0:0:ffff:809e:64f1
128.158.100.242 0:0:0:0:0:ffff:809e:64f2
128.158.100.243 0:0:0:0:0:ffff:809e:64f3
128.158.100.244 0:0:0:0:0:ffff:809e:64f4
128.158.100.245 0:0:0:0:0:ffff:809e:64f5
128.158.100.246 0:0:0:0:0:ffff:809e:64f6
128.158.100.247 0:0:0:0:0:ffff:809e:64f7
128.158.100.248 0:0:0:0:0:ffff:809e:64f8
128.158.100.249 0:0:0:0:0:ffff:809e:64f9
128.158.100.250 0:0:0:0:0:ffff:809e:64fa
128.158.100.251 0:0:0:0:0:ffff:809e:64fb
128.158.100.252 0:0:0:0:0:ffff:809e:64fc
128.158.100.253 0:0:0:0:0:ffff:809e:64fd
128.158.100.254 0:0:0:0:0:ffff:809e:64fe
128.158.100.255 0:0:0:0:0:ffff:809e: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.