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
21.249.196.1 0:0:0:0:0:ffff:15f9:c401
21.249.196.2 0:0:0:0:0:ffff:15f9:c402
21.249.196.3 0:0:0:0:0:ffff:15f9:c403
21.249.196.4 0:0:0:0:0:ffff:15f9:c404
21.249.196.5 0:0:0:0:0:ffff:15f9:c405
21.249.196.6 0:0:0:0:0:ffff:15f9:c406
21.249.196.7 0:0:0:0:0:ffff:15f9:c407
21.249.196.8 0:0:0:0:0:ffff:15f9:c408
21.249.196.9 0:0:0:0:0:ffff:15f9:c409
21.249.196.10 0:0:0:0:0:ffff:15f9:c40a
21.249.196.11 0:0:0:0:0:ffff:15f9:c40b
21.249.196.12 0:0:0:0:0:ffff:15f9:c40c
21.249.196.13 0:0:0:0:0:ffff:15f9:c40d
21.249.196.14 0:0:0:0:0:ffff:15f9:c40e
21.249.196.15 0:0:0:0:0:ffff:15f9:c40f
21.249.196.16 0:0:0:0:0:ffff:15f9:c410
21.249.196.17 0:0:0:0:0:ffff:15f9:c411
21.249.196.18 0:0:0:0:0:ffff:15f9:c412
21.249.196.19 0:0:0:0:0:ffff:15f9:c413
21.249.196.20 0:0:0:0:0:ffff:15f9:c414
21.249.196.21 0:0:0:0:0:ffff:15f9:c415
21.249.196.22 0:0:0:0:0:ffff:15f9:c416
21.249.196.23 0:0:0:0:0:ffff:15f9:c417
21.249.196.24 0:0:0:0:0:ffff:15f9:c418
21.249.196.25 0:0:0:0:0:ffff:15f9:c419
21.249.196.26 0:0:0:0:0:ffff:15f9:c41a
21.249.196.27 0:0:0:0:0:ffff:15f9:c41b
21.249.196.28 0:0:0:0:0:ffff:15f9:c41c
21.249.196.29 0:0:0:0:0:ffff:15f9:c41d
21.249.196.30 0:0:0:0:0:ffff:15f9:c41e
21.249.196.31 0:0:0:0:0:ffff:15f9:c41f
21.249.196.32 0:0:0:0:0:ffff:15f9:c420
21.249.196.33 0:0:0:0:0:ffff:15f9:c421
21.249.196.34 0:0:0:0:0:ffff:15f9:c422
21.249.196.35 0:0:0:0:0:ffff:15f9:c423
21.249.196.36 0:0:0:0:0:ffff:15f9:c424
21.249.196.37 0:0:0:0:0:ffff:15f9:c425
21.249.196.38 0:0:0:0:0:ffff:15f9:c426
21.249.196.39 0:0:0:0:0:ffff:15f9:c427
21.249.196.40 0:0:0:0:0:ffff:15f9:c428
21.249.196.41 0:0:0:0:0:ffff:15f9:c429
21.249.196.42 0:0:0:0:0:ffff:15f9:c42a
21.249.196.43 0:0:0:0:0:ffff:15f9:c42b
21.249.196.44 0:0:0:0:0:ffff:15f9:c42c
21.249.196.45 0:0:0:0:0:ffff:15f9:c42d
21.249.196.46 0:0:0:0:0:ffff:15f9:c42e
21.249.196.47 0:0:0:0:0:ffff:15f9:c42f
21.249.196.48 0:0:0:0:0:ffff:15f9:c430
21.249.196.49 0:0:0:0:0:ffff:15f9:c431
21.249.196.50 0:0:0:0:0:ffff:15f9:c432
21.249.196.51 0:0:0:0:0:ffff:15f9:c433
21.249.196.52 0:0:0:0:0:ffff:15f9:c434
21.249.196.53 0:0:0:0:0:ffff:15f9:c435
21.249.196.54 0:0:0:0:0:ffff:15f9:c436
21.249.196.55 0:0:0:0:0:ffff:15f9:c437
21.249.196.56 0:0:0:0:0:ffff:15f9:c438
21.249.196.57 0:0:0:0:0:ffff:15f9:c439
21.249.196.58 0:0:0:0:0:ffff:15f9:c43a
21.249.196.59 0:0:0:0:0:ffff:15f9:c43b
21.249.196.60 0:0:0:0:0:ffff:15f9:c43c


21.249.196.61 0:0:0:0:0:ffff:15f9:c43d
21.249.196.62 0:0:0:0:0:ffff:15f9:c43e
21.249.196.63 0:0:0:0:0:ffff:15f9:c43f
21.249.196.64 0:0:0:0:0:ffff:15f9:c440
21.249.196.65 0:0:0:0:0:ffff:15f9:c441
21.249.196.66 0:0:0:0:0:ffff:15f9:c442
21.249.196.67 0:0:0:0:0:ffff:15f9:c443
21.249.196.68 0:0:0:0:0:ffff:15f9:c444
21.249.196.69 0:0:0:0:0:ffff:15f9:c445
21.249.196.70 0:0:0:0:0:ffff:15f9:c446
21.249.196.71 0:0:0:0:0:ffff:15f9:c447
21.249.196.72 0:0:0:0:0:ffff:15f9:c448
21.249.196.73 0:0:0:0:0:ffff:15f9:c449
21.249.196.74 0:0:0:0:0:ffff:15f9:c44a
21.249.196.75 0:0:0:0:0:ffff:15f9:c44b
21.249.196.76 0:0:0:0:0:ffff:15f9:c44c
21.249.196.77 0:0:0:0:0:ffff:15f9:c44d
21.249.196.78 0:0:0:0:0:ffff:15f9:c44e
21.249.196.79 0:0:0:0:0:ffff:15f9:c44f
21.249.196.80 0:0:0:0:0:ffff:15f9:c450
21.249.196.81 0:0:0:0:0:ffff:15f9:c451
21.249.196.82 0:0:0:0:0:ffff:15f9:c452
21.249.196.83 0:0:0:0:0:ffff:15f9:c453
21.249.196.84 0:0:0:0:0:ffff:15f9:c454
21.249.196.85 0:0:0:0:0:ffff:15f9:c455
21.249.196.86 0:0:0:0:0:ffff:15f9:c456
21.249.196.87 0:0:0:0:0:ffff:15f9:c457
21.249.196.88 0:0:0:0:0:ffff:15f9:c458
21.249.196.89 0:0:0:0:0:ffff:15f9:c459
21.249.196.90 0:0:0:0:0:ffff:15f9:c45a
21.249.196.91 0:0:0:0:0:ffff:15f9:c45b
21.249.196.92 0:0:0:0:0:ffff:15f9:c45c
21.249.196.93 0:0:0:0:0:ffff:15f9:c45d
21.249.196.94 0:0:0:0:0:ffff:15f9:c45e
21.249.196.95 0:0:0:0:0:ffff:15f9:c45f
21.249.196.96 0:0:0:0:0:ffff:15f9:c460
21.249.196.97 0:0:0:0:0:ffff:15f9:c461
21.249.196.98 0:0:0:0:0:ffff:15f9:c462
21.249.196.99 0:0:0:0:0:ffff:15f9:c463
21.249.196.100 0:0:0:0:0:ffff:15f9:c464
21.249.196.101 0:0:0:0:0:ffff:15f9:c465
21.249.196.102 0:0:0:0:0:ffff:15f9:c466
21.249.196.103 0:0:0:0:0:ffff:15f9:c467
21.249.196.104 0:0:0:0:0:ffff:15f9:c468
21.249.196.105 0:0:0:0:0:ffff:15f9:c469
21.249.196.106 0:0:0:0:0:ffff:15f9:c46a
21.249.196.107 0:0:0:0:0:ffff:15f9:c46b
21.249.196.108 0:0:0:0:0:ffff:15f9:c46c
21.249.196.109 0:0:0:0:0:ffff:15f9:c46d
21.249.196.110 0:0:0:0:0:ffff:15f9:c46e
21.249.196.111 0:0:0:0:0:ffff:15f9:c46f
21.249.196.112 0:0:0:0:0:ffff:15f9:c470
21.249.196.113 0:0:0:0:0:ffff:15f9:c471
21.249.196.114 0:0:0:0:0:ffff:15f9:c472
21.249.196.115 0:0:0:0:0:ffff:15f9:c473
21.249.196.116 0:0:0:0:0:ffff:15f9:c474
21.249.196.117 0:0:0:0:0:ffff:15f9:c475
21.249.196.118 0:0:0:0:0:ffff:15f9:c476
21.249.196.119 0:0:0:0:0:ffff:15f9:c477
21.249.196.120 0:0:0:0:0:ffff:15f9:c478


21.249.196.121 0:0:0:0:0:ffff:15f9:c479
21.249.196.122 0:0:0:0:0:ffff:15f9:c47a
21.249.196.123 0:0:0:0:0:ffff:15f9:c47b
21.249.196.124 0:0:0:0:0:ffff:15f9:c47c
21.249.196.125 0:0:0:0:0:ffff:15f9:c47d
21.249.196.126 0:0:0:0:0:ffff:15f9:c47e
21.249.196.127 0:0:0:0:0:ffff:15f9:c47f
21.249.196.128 0:0:0:0:0:ffff:15f9:c480
21.249.196.129 0:0:0:0:0:ffff:15f9:c481
21.249.196.130 0:0:0:0:0:ffff:15f9:c482
21.249.196.131 0:0:0:0:0:ffff:15f9:c483
21.249.196.132 0:0:0:0:0:ffff:15f9:c484
21.249.196.133 0:0:0:0:0:ffff:15f9:c485
21.249.196.134 0:0:0:0:0:ffff:15f9:c486
21.249.196.135 0:0:0:0:0:ffff:15f9:c487
21.249.196.136 0:0:0:0:0:ffff:15f9:c488
21.249.196.137 0:0:0:0:0:ffff:15f9:c489
21.249.196.138 0:0:0:0:0:ffff:15f9:c48a
21.249.196.139 0:0:0:0:0:ffff:15f9:c48b
21.249.196.140 0:0:0:0:0:ffff:15f9:c48c
21.249.196.141 0:0:0:0:0:ffff:15f9:c48d
21.249.196.142 0:0:0:0:0:ffff:15f9:c48e
21.249.196.143 0:0:0:0:0:ffff:15f9:c48f
21.249.196.144 0:0:0:0:0:ffff:15f9:c490
21.249.196.145 0:0:0:0:0:ffff:15f9:c491
21.249.196.146 0:0:0:0:0:ffff:15f9:c492
21.249.196.147 0:0:0:0:0:ffff:15f9:c493
21.249.196.148 0:0:0:0:0:ffff:15f9:c494
21.249.196.149 0:0:0:0:0:ffff:15f9:c495
21.249.196.150 0:0:0:0:0:ffff:15f9:c496
21.249.196.151 0:0:0:0:0:ffff:15f9:c497
21.249.196.152 0:0:0:0:0:ffff:15f9:c498
21.249.196.153 0:0:0:0:0:ffff:15f9:c499
21.249.196.154 0:0:0:0:0:ffff:15f9:c49a
21.249.196.155 0:0:0:0:0:ffff:15f9:c49b
21.249.196.156 0:0:0:0:0:ffff:15f9:c49c
21.249.196.157 0:0:0:0:0:ffff:15f9:c49d
21.249.196.158 0:0:0:0:0:ffff:15f9:c49e
21.249.196.159 0:0:0:0:0:ffff:15f9:c49f
21.249.196.160 0:0:0:0:0:ffff:15f9:c4a0
21.249.196.161 0:0:0:0:0:ffff:15f9:c4a1
21.249.196.162 0:0:0:0:0:ffff:15f9:c4a2
21.249.196.163 0:0:0:0:0:ffff:15f9:c4a3
21.249.196.164 0:0:0:0:0:ffff:15f9:c4a4
21.249.196.165 0:0:0:0:0:ffff:15f9:c4a5
21.249.196.166 0:0:0:0:0:ffff:15f9:c4a6
21.249.196.167 0:0:0:0:0:ffff:15f9:c4a7
21.249.196.168 0:0:0:0:0:ffff:15f9:c4a8
21.249.196.169 0:0:0:0:0:ffff:15f9:c4a9
21.249.196.170 0:0:0:0:0:ffff:15f9:c4aa
21.249.196.171 0:0:0:0:0:ffff:15f9:c4ab
21.249.196.172 0:0:0:0:0:ffff:15f9:c4ac
21.249.196.173 0:0:0:0:0:ffff:15f9:c4ad
21.249.196.174 0:0:0:0:0:ffff:15f9:c4ae
21.249.196.175 0:0:0:0:0:ffff:15f9:c4af
21.249.196.176 0:0:0:0:0:ffff:15f9:c4b0
21.249.196.177 0:0:0:0:0:ffff:15f9:c4b1
21.249.196.178 0:0:0:0:0:ffff:15f9:c4b2
21.249.196.179 0:0:0:0:0:ffff:15f9:c4b3
21.249.196.180 0:0:0:0:0:ffff:15f9:c4b4


21.249.196.181 0:0:0:0:0:ffff:15f9:c4b5
21.249.196.182 0:0:0:0:0:ffff:15f9:c4b6
21.249.196.183 0:0:0:0:0:ffff:15f9:c4b7
21.249.196.184 0:0:0:0:0:ffff:15f9:c4b8
21.249.196.185 0:0:0:0:0:ffff:15f9:c4b9
21.249.196.186 0:0:0:0:0:ffff:15f9:c4ba
21.249.196.187 0:0:0:0:0:ffff:15f9:c4bb
21.249.196.188 0:0:0:0:0:ffff:15f9:c4bc
21.249.196.189 0:0:0:0:0:ffff:15f9:c4bd
21.249.196.190 0:0:0:0:0:ffff:15f9:c4be
21.249.196.191 0:0:0:0:0:ffff:15f9:c4bf
21.249.196.192 0:0:0:0:0:ffff:15f9:c4c0
21.249.196.193 0:0:0:0:0:ffff:15f9:c4c1
21.249.196.194 0:0:0:0:0:ffff:15f9:c4c2
21.249.196.195 0:0:0:0:0:ffff:15f9:c4c3
21.249.196.196 0:0:0:0:0:ffff:15f9:c4c4
21.249.196.197 0:0:0:0:0:ffff:15f9:c4c5
21.249.196.198 0:0:0:0:0:ffff:15f9:c4c6
21.249.196.199 0:0:0:0:0:ffff:15f9:c4c7
21.249.196.200 0:0:0:0:0:ffff:15f9:c4c8
21.249.196.201 0:0:0:0:0:ffff:15f9:c4c9
21.249.196.202 0:0:0:0:0:ffff:15f9:c4ca
21.249.196.203 0:0:0:0:0:ffff:15f9:c4cb
21.249.196.204 0:0:0:0:0:ffff:15f9:c4cc
21.249.196.205 0:0:0:0:0:ffff:15f9:c4cd
21.249.196.206 0:0:0:0:0:ffff:15f9:c4ce
21.249.196.207 0:0:0:0:0:ffff:15f9:c4cf
21.249.196.208 0:0:0:0:0:ffff:15f9:c4d0
21.249.196.209 0:0:0:0:0:ffff:15f9:c4d1
21.249.196.210 0:0:0:0:0:ffff:15f9:c4d2
21.249.196.211 0:0:0:0:0:ffff:15f9:c4d3
21.249.196.212 0:0:0:0:0:ffff:15f9:c4d4
21.249.196.213 0:0:0:0:0:ffff:15f9:c4d5
21.249.196.214 0:0:0:0:0:ffff:15f9:c4d6
21.249.196.215 0:0:0:0:0:ffff:15f9:c4d7
21.249.196.216 0:0:0:0:0:ffff:15f9:c4d8
21.249.196.217 0:0:0:0:0:ffff:15f9:c4d9
21.249.196.218 0:0:0:0:0:ffff:15f9:c4da
21.249.196.219 0:0:0:0:0:ffff:15f9:c4db
21.249.196.220 0:0:0:0:0:ffff:15f9:c4dc
21.249.196.221 0:0:0:0:0:ffff:15f9:c4dd
21.249.196.222 0:0:0:0:0:ffff:15f9:c4de
21.249.196.223 0:0:0:0:0:ffff:15f9:c4df
21.249.196.224 0:0:0:0:0:ffff:15f9:c4e0
21.249.196.225 0:0:0:0:0:ffff:15f9:c4e1
21.249.196.226 0:0:0:0:0:ffff:15f9:c4e2
21.249.196.227 0:0:0:0:0:ffff:15f9:c4e3
21.249.196.228 0:0:0:0:0:ffff:15f9:c4e4
21.249.196.229 0:0:0:0:0:ffff:15f9:c4e5
21.249.196.230 0:0:0:0:0:ffff:15f9:c4e6
21.249.196.231 0:0:0:0:0:ffff:15f9:c4e7
21.249.196.232 0:0:0:0:0:ffff:15f9:c4e8
21.249.196.233 0:0:0:0:0:ffff:15f9:c4e9
21.249.196.234 0:0:0:0:0:ffff:15f9:c4ea
21.249.196.235 0:0:0:0:0:ffff:15f9:c4eb
21.249.196.236 0:0:0:0:0:ffff:15f9:c4ec
21.249.196.237 0:0:0:0:0:ffff:15f9:c4ed
21.249.196.238 0:0:0:0:0:ffff:15f9:c4ee
21.249.196.239 0:0:0:0:0:ffff:15f9:c4ef
21.249.196.240 0:0:0:0:0:ffff:15f9:c4f0
21.249.196.241 0:0:0:0:0:ffff:15f9:c4f1
21.249.196.242 0:0:0:0:0:ffff:15f9:c4f2
21.249.196.243 0:0:0:0:0:ffff:15f9:c4f3
21.249.196.244 0:0:0:0:0:ffff:15f9:c4f4
21.249.196.245 0:0:0:0:0:ffff:15f9:c4f5
21.249.196.246 0:0:0:0:0:ffff:15f9:c4f6
21.249.196.247 0:0:0:0:0:ffff:15f9:c4f7
21.249.196.248 0:0:0:0:0:ffff:15f9:c4f8
21.249.196.249 0:0:0:0:0:ffff:15f9:c4f9
21.249.196.250 0:0:0:0:0:ffff:15f9:c4fa
21.249.196.251 0:0:0:0:0:ffff:15f9:c4fb
21.249.196.252 0:0:0:0:0:ffff:15f9:c4fc
21.249.196.253 0:0:0:0:0:ffff:15f9:c4fd
21.249.196.254 0:0:0:0:0:ffff:15f9:c4fe
21.249.196.255 0:0:0:0:0:ffff:15f9:c4ff


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.