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
21.146.100.1 0:0:0:0:0:ffff:1592:6401
21.146.100.2 0:0:0:0:0:ffff:1592:6402
21.146.100.3 0:0:0:0:0:ffff:1592:6403
21.146.100.4 0:0:0:0:0:ffff:1592:6404
21.146.100.5 0:0:0:0:0:ffff:1592:6405
21.146.100.6 0:0:0:0:0:ffff:1592:6406
21.146.100.7 0:0:0:0:0:ffff:1592:6407
21.146.100.8 0:0:0:0:0:ffff:1592:6408
21.146.100.9 0:0:0:0:0:ffff:1592:6409
21.146.100.10 0:0:0:0:0:ffff:1592:640a
21.146.100.11 0:0:0:0:0:ffff:1592:640b
21.146.100.12 0:0:0:0:0:ffff:1592:640c
21.146.100.13 0:0:0:0:0:ffff:1592:640d
21.146.100.14 0:0:0:0:0:ffff:1592:640e
21.146.100.15 0:0:0:0:0:ffff:1592:640f
21.146.100.16 0:0:0:0:0:ffff:1592:6410
21.146.100.17 0:0:0:0:0:ffff:1592:6411
21.146.100.18 0:0:0:0:0:ffff:1592:6412
21.146.100.19 0:0:0:0:0:ffff:1592:6413
21.146.100.20 0:0:0:0:0:ffff:1592:6414
21.146.100.21 0:0:0:0:0:ffff:1592:6415
21.146.100.22 0:0:0:0:0:ffff:1592:6416
21.146.100.23 0:0:0:0:0:ffff:1592:6417
21.146.100.24 0:0:0:0:0:ffff:1592:6418
21.146.100.25 0:0:0:0:0:ffff:1592:6419
21.146.100.26 0:0:0:0:0:ffff:1592:641a
21.146.100.27 0:0:0:0:0:ffff:1592:641b
21.146.100.28 0:0:0:0:0:ffff:1592:641c
21.146.100.29 0:0:0:0:0:ffff:1592:641d
21.146.100.30 0:0:0:0:0:ffff:1592:641e
21.146.100.31 0:0:0:0:0:ffff:1592:641f
21.146.100.32 0:0:0:0:0:ffff:1592:6420
21.146.100.33 0:0:0:0:0:ffff:1592:6421
21.146.100.34 0:0:0:0:0:ffff:1592:6422
21.146.100.35 0:0:0:0:0:ffff:1592:6423
21.146.100.36 0:0:0:0:0:ffff:1592:6424
21.146.100.37 0:0:0:0:0:ffff:1592:6425
21.146.100.38 0:0:0:0:0:ffff:1592:6426
21.146.100.39 0:0:0:0:0:ffff:1592:6427
21.146.100.40 0:0:0:0:0:ffff:1592:6428
21.146.100.41 0:0:0:0:0:ffff:1592:6429
21.146.100.42 0:0:0:0:0:ffff:1592:642a
21.146.100.43 0:0:0:0:0:ffff:1592:642b
21.146.100.44 0:0:0:0:0:ffff:1592:642c
21.146.100.45 0:0:0:0:0:ffff:1592:642d
21.146.100.46 0:0:0:0:0:ffff:1592:642e
21.146.100.47 0:0:0:0:0:ffff:1592:642f
21.146.100.48 0:0:0:0:0:ffff:1592:6430
21.146.100.49 0:0:0:0:0:ffff:1592:6431
21.146.100.50 0:0:0:0:0:ffff:1592:6432
21.146.100.51 0:0:0:0:0:ffff:1592:6433
21.146.100.52 0:0:0:0:0:ffff:1592:6434
21.146.100.53 0:0:0:0:0:ffff:1592:6435
21.146.100.54 0:0:0:0:0:ffff:1592:6436
21.146.100.55 0:0:0:0:0:ffff:1592:6437
21.146.100.56 0:0:0:0:0:ffff:1592:6438
21.146.100.57 0:0:0:0:0:ffff:1592:6439
21.146.100.58 0:0:0:0:0:ffff:1592:643a
21.146.100.59 0:0:0:0:0:ffff:1592:643b
21.146.100.60 0:0:0:0:0:ffff:1592:643c


21.146.100.61 0:0:0:0:0:ffff:1592:643d
21.146.100.62 0:0:0:0:0:ffff:1592:643e
21.146.100.63 0:0:0:0:0:ffff:1592:643f
21.146.100.64 0:0:0:0:0:ffff:1592:6440
21.146.100.65 0:0:0:0:0:ffff:1592:6441
21.146.100.66 0:0:0:0:0:ffff:1592:6442
21.146.100.67 0:0:0:0:0:ffff:1592:6443
21.146.100.68 0:0:0:0:0:ffff:1592:6444
21.146.100.69 0:0:0:0:0:ffff:1592:6445
21.146.100.70 0:0:0:0:0:ffff:1592:6446
21.146.100.71 0:0:0:0:0:ffff:1592:6447
21.146.100.72 0:0:0:0:0:ffff:1592:6448
21.146.100.73 0:0:0:0:0:ffff:1592:6449
21.146.100.74 0:0:0:0:0:ffff:1592:644a
21.146.100.75 0:0:0:0:0:ffff:1592:644b
21.146.100.76 0:0:0:0:0:ffff:1592:644c
21.146.100.77 0:0:0:0:0:ffff:1592:644d
21.146.100.78 0:0:0:0:0:ffff:1592:644e
21.146.100.79 0:0:0:0:0:ffff:1592:644f
21.146.100.80 0:0:0:0:0:ffff:1592:6450
21.146.100.81 0:0:0:0:0:ffff:1592:6451
21.146.100.82 0:0:0:0:0:ffff:1592:6452
21.146.100.83 0:0:0:0:0:ffff:1592:6453
21.146.100.84 0:0:0:0:0:ffff:1592:6454
21.146.100.85 0:0:0:0:0:ffff:1592:6455
21.146.100.86 0:0:0:0:0:ffff:1592:6456
21.146.100.87 0:0:0:0:0:ffff:1592:6457
21.146.100.88 0:0:0:0:0:ffff:1592:6458
21.146.100.89 0:0:0:0:0:ffff:1592:6459
21.146.100.90 0:0:0:0:0:ffff:1592:645a
21.146.100.91 0:0:0:0:0:ffff:1592:645b
21.146.100.92 0:0:0:0:0:ffff:1592:645c
21.146.100.93 0:0:0:0:0:ffff:1592:645d
21.146.100.94 0:0:0:0:0:ffff:1592:645e
21.146.100.95 0:0:0:0:0:ffff:1592:645f
21.146.100.96 0:0:0:0:0:ffff:1592:6460
21.146.100.97 0:0:0:0:0:ffff:1592:6461
21.146.100.98 0:0:0:0:0:ffff:1592:6462
21.146.100.99 0:0:0:0:0:ffff:1592:6463
21.146.100.100 0:0:0:0:0:ffff:1592:6464
21.146.100.101 0:0:0:0:0:ffff:1592:6465
21.146.100.102 0:0:0:0:0:ffff:1592:6466
21.146.100.103 0:0:0:0:0:ffff:1592:6467
21.146.100.104 0:0:0:0:0:ffff:1592:6468
21.146.100.105 0:0:0:0:0:ffff:1592:6469
21.146.100.106 0:0:0:0:0:ffff:1592:646a
21.146.100.107 0:0:0:0:0:ffff:1592:646b
21.146.100.108 0:0:0:0:0:ffff:1592:646c
21.146.100.109 0:0:0:0:0:ffff:1592:646d
21.146.100.110 0:0:0:0:0:ffff:1592:646e
21.146.100.111 0:0:0:0:0:ffff:1592:646f
21.146.100.112 0:0:0:0:0:ffff:1592:6470
21.146.100.113 0:0:0:0:0:ffff:1592:6471
21.146.100.114 0:0:0:0:0:ffff:1592:6472
21.146.100.115 0:0:0:0:0:ffff:1592:6473
21.146.100.116 0:0:0:0:0:ffff:1592:6474
21.146.100.117 0:0:0:0:0:ffff:1592:6475
21.146.100.118 0:0:0:0:0:ffff:1592:6476
21.146.100.119 0:0:0:0:0:ffff:1592:6477
21.146.100.120 0:0:0:0:0:ffff:1592:6478


21.146.100.121 0:0:0:0:0:ffff:1592:6479
21.146.100.122 0:0:0:0:0:ffff:1592:647a
21.146.100.123 0:0:0:0:0:ffff:1592:647b
21.146.100.124 0:0:0:0:0:ffff:1592:647c
21.146.100.125 0:0:0:0:0:ffff:1592:647d
21.146.100.126 0:0:0:0:0:ffff:1592:647e
21.146.100.127 0:0:0:0:0:ffff:1592:647f
21.146.100.128 0:0:0:0:0:ffff:1592:6480
21.146.100.129 0:0:0:0:0:ffff:1592:6481
21.146.100.130 0:0:0:0:0:ffff:1592:6482
21.146.100.131 0:0:0:0:0:ffff:1592:6483
21.146.100.132 0:0:0:0:0:ffff:1592:6484
21.146.100.133 0:0:0:0:0:ffff:1592:6485
21.146.100.134 0:0:0:0:0:ffff:1592:6486
21.146.100.135 0:0:0:0:0:ffff:1592:6487
21.146.100.136 0:0:0:0:0:ffff:1592:6488
21.146.100.137 0:0:0:0:0:ffff:1592:6489
21.146.100.138 0:0:0:0:0:ffff:1592:648a
21.146.100.139 0:0:0:0:0:ffff:1592:648b
21.146.100.140 0:0:0:0:0:ffff:1592:648c
21.146.100.141 0:0:0:0:0:ffff:1592:648d
21.146.100.142 0:0:0:0:0:ffff:1592:648e
21.146.100.143 0:0:0:0:0:ffff:1592:648f
21.146.100.144 0:0:0:0:0:ffff:1592:6490
21.146.100.145 0:0:0:0:0:ffff:1592:6491
21.146.100.146 0:0:0:0:0:ffff:1592:6492
21.146.100.147 0:0:0:0:0:ffff:1592:6493
21.146.100.148 0:0:0:0:0:ffff:1592:6494
21.146.100.149 0:0:0:0:0:ffff:1592:6495
21.146.100.150 0:0:0:0:0:ffff:1592:6496
21.146.100.151 0:0:0:0:0:ffff:1592:6497
21.146.100.152 0:0:0:0:0:ffff:1592:6498
21.146.100.153 0:0:0:0:0:ffff:1592:6499
21.146.100.154 0:0:0:0:0:ffff:1592:649a
21.146.100.155 0:0:0:0:0:ffff:1592:649b
21.146.100.156 0:0:0:0:0:ffff:1592:649c
21.146.100.157 0:0:0:0:0:ffff:1592:649d
21.146.100.158 0:0:0:0:0:ffff:1592:649e
21.146.100.159 0:0:0:0:0:ffff:1592:649f
21.146.100.160 0:0:0:0:0:ffff:1592:64a0
21.146.100.161 0:0:0:0:0:ffff:1592:64a1
21.146.100.162 0:0:0:0:0:ffff:1592:64a2
21.146.100.163 0:0:0:0:0:ffff:1592:64a3
21.146.100.164 0:0:0:0:0:ffff:1592:64a4
21.146.100.165 0:0:0:0:0:ffff:1592:64a5
21.146.100.166 0:0:0:0:0:ffff:1592:64a6
21.146.100.167 0:0:0:0:0:ffff:1592:64a7
21.146.100.168 0:0:0:0:0:ffff:1592:64a8
21.146.100.169 0:0:0:0:0:ffff:1592:64a9
21.146.100.170 0:0:0:0:0:ffff:1592:64aa
21.146.100.171 0:0:0:0:0:ffff:1592:64ab
21.146.100.172 0:0:0:0:0:ffff:1592:64ac
21.146.100.173 0:0:0:0:0:ffff:1592:64ad
21.146.100.174 0:0:0:0:0:ffff:1592:64ae
21.146.100.175 0:0:0:0:0:ffff:1592:64af
21.146.100.176 0:0:0:0:0:ffff:1592:64b0
21.146.100.177 0:0:0:0:0:ffff:1592:64b1
21.146.100.178 0:0:0:0:0:ffff:1592:64b2
21.146.100.179 0:0:0:0:0:ffff:1592:64b3
21.146.100.180 0:0:0:0:0:ffff:1592:64b4


21.146.100.181 0:0:0:0:0:ffff:1592:64b5
21.146.100.182 0:0:0:0:0:ffff:1592:64b6
21.146.100.183 0:0:0:0:0:ffff:1592:64b7
21.146.100.184 0:0:0:0:0:ffff:1592:64b8
21.146.100.185 0:0:0:0:0:ffff:1592:64b9
21.146.100.186 0:0:0:0:0:ffff:1592:64ba
21.146.100.187 0:0:0:0:0:ffff:1592:64bb
21.146.100.188 0:0:0:0:0:ffff:1592:64bc
21.146.100.189 0:0:0:0:0:ffff:1592:64bd
21.146.100.190 0:0:0:0:0:ffff:1592:64be
21.146.100.191 0:0:0:0:0:ffff:1592:64bf
21.146.100.192 0:0:0:0:0:ffff:1592:64c0
21.146.100.193 0:0:0:0:0:ffff:1592:64c1
21.146.100.194 0:0:0:0:0:ffff:1592:64c2
21.146.100.195 0:0:0:0:0:ffff:1592:64c3
21.146.100.196 0:0:0:0:0:ffff:1592:64c4
21.146.100.197 0:0:0:0:0:ffff:1592:64c5
21.146.100.198 0:0:0:0:0:ffff:1592:64c6
21.146.100.199 0:0:0:0:0:ffff:1592:64c7
21.146.100.200 0:0:0:0:0:ffff:1592:64c8
21.146.100.201 0:0:0:0:0:ffff:1592:64c9
21.146.100.202 0:0:0:0:0:ffff:1592:64ca
21.146.100.203 0:0:0:0:0:ffff:1592:64cb
21.146.100.204 0:0:0:0:0:ffff:1592:64cc
21.146.100.205 0:0:0:0:0:ffff:1592:64cd
21.146.100.206 0:0:0:0:0:ffff:1592:64ce
21.146.100.207 0:0:0:0:0:ffff:1592:64cf
21.146.100.208 0:0:0:0:0:ffff:1592:64d0
21.146.100.209 0:0:0:0:0:ffff:1592:64d1
21.146.100.210 0:0:0:0:0:ffff:1592:64d2
21.146.100.211 0:0:0:0:0:ffff:1592:64d3
21.146.100.212 0:0:0:0:0:ffff:1592:64d4
21.146.100.213 0:0:0:0:0:ffff:1592:64d5
21.146.100.214 0:0:0:0:0:ffff:1592:64d6
21.146.100.215 0:0:0:0:0:ffff:1592:64d7
21.146.100.216 0:0:0:0:0:ffff:1592:64d8
21.146.100.217 0:0:0:0:0:ffff:1592:64d9
21.146.100.218 0:0:0:0:0:ffff:1592:64da
21.146.100.219 0:0:0:0:0:ffff:1592:64db
21.146.100.220 0:0:0:0:0:ffff:1592:64dc
21.146.100.221 0:0:0:0:0:ffff:1592:64dd
21.146.100.222 0:0:0:0:0:ffff:1592:64de
21.146.100.223 0:0:0:0:0:ffff:1592:64df
21.146.100.224 0:0:0:0:0:ffff:1592:64e0
21.146.100.225 0:0:0:0:0:ffff:1592:64e1
21.146.100.226 0:0:0:0:0:ffff:1592:64e2
21.146.100.227 0:0:0:0:0:ffff:1592:64e3
21.146.100.228 0:0:0:0:0:ffff:1592:64e4
21.146.100.229 0:0:0:0:0:ffff:1592:64e5
21.146.100.230 0:0:0:0:0:ffff:1592:64e6
21.146.100.231 0:0:0:0:0:ffff:1592:64e7
21.146.100.232 0:0:0:0:0:ffff:1592:64e8
21.146.100.233 0:0:0:0:0:ffff:1592:64e9
21.146.100.234 0:0:0:0:0:ffff:1592:64ea
21.146.100.235 0:0:0:0:0:ffff:1592:64eb
21.146.100.236 0:0:0:0:0:ffff:1592:64ec
21.146.100.237 0:0:0:0:0:ffff:1592:64ed
21.146.100.238 0:0:0:0:0:ffff:1592:64ee
21.146.100.239 0:0:0:0:0:ffff:1592:64ef
21.146.100.240 0:0:0:0:0:ffff:1592:64f0
21.146.100.241 0:0:0:0:0:ffff:1592:64f1
21.146.100.242 0:0:0:0:0:ffff:1592:64f2
21.146.100.243 0:0:0:0:0:ffff:1592:64f3
21.146.100.244 0:0:0:0:0:ffff:1592:64f4
21.146.100.245 0:0:0:0:0:ffff:1592:64f5
21.146.100.246 0:0:0:0:0:ffff:1592:64f6
21.146.100.247 0:0:0:0:0:ffff:1592:64f7
21.146.100.248 0:0:0:0:0:ffff:1592:64f8
21.146.100.249 0:0:0:0:0:ffff:1592:64f9
21.146.100.250 0:0:0:0:0:ffff:1592:64fa
21.146.100.251 0:0:0:0:0:ffff:1592:64fb
21.146.100.252 0:0:0:0:0:ffff:1592:64fc
21.146.100.253 0:0:0:0:0:ffff:1592:64fd
21.146.100.254 0:0:0:0:0:ffff:1592:64fe
21.146.100.255 0:0:0:0:0:ffff:1592:64ff


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.