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
65.121.196.1 0:0:0:0:0:ffff:4179:c401
65.121.196.2 0:0:0:0:0:ffff:4179:c402
65.121.196.3 0:0:0:0:0:ffff:4179:c403
65.121.196.4 0:0:0:0:0:ffff:4179:c404
65.121.196.5 0:0:0:0:0:ffff:4179:c405
65.121.196.6 0:0:0:0:0:ffff:4179:c406
65.121.196.7 0:0:0:0:0:ffff:4179:c407
65.121.196.8 0:0:0:0:0:ffff:4179:c408
65.121.196.9 0:0:0:0:0:ffff:4179:c409
65.121.196.10 0:0:0:0:0:ffff:4179:c40a
65.121.196.11 0:0:0:0:0:ffff:4179:c40b
65.121.196.12 0:0:0:0:0:ffff:4179:c40c
65.121.196.13 0:0:0:0:0:ffff:4179:c40d
65.121.196.14 0:0:0:0:0:ffff:4179:c40e
65.121.196.15 0:0:0:0:0:ffff:4179:c40f
65.121.196.16 0:0:0:0:0:ffff:4179:c410
65.121.196.17 0:0:0:0:0:ffff:4179:c411
65.121.196.18 0:0:0:0:0:ffff:4179:c412
65.121.196.19 0:0:0:0:0:ffff:4179:c413
65.121.196.20 0:0:0:0:0:ffff:4179:c414
65.121.196.21 0:0:0:0:0:ffff:4179:c415
65.121.196.22 0:0:0:0:0:ffff:4179:c416
65.121.196.23 0:0:0:0:0:ffff:4179:c417
65.121.196.24 0:0:0:0:0:ffff:4179:c418
65.121.196.25 0:0:0:0:0:ffff:4179:c419
65.121.196.26 0:0:0:0:0:ffff:4179:c41a
65.121.196.27 0:0:0:0:0:ffff:4179:c41b
65.121.196.28 0:0:0:0:0:ffff:4179:c41c
65.121.196.29 0:0:0:0:0:ffff:4179:c41d
65.121.196.30 0:0:0:0:0:ffff:4179:c41e
65.121.196.31 0:0:0:0:0:ffff:4179:c41f
65.121.196.32 0:0:0:0:0:ffff:4179:c420
65.121.196.33 0:0:0:0:0:ffff:4179:c421
65.121.196.34 0:0:0:0:0:ffff:4179:c422
65.121.196.35 0:0:0:0:0:ffff:4179:c423
65.121.196.36 0:0:0:0:0:ffff:4179:c424
65.121.196.37 0:0:0:0:0:ffff:4179:c425
65.121.196.38 0:0:0:0:0:ffff:4179:c426
65.121.196.39 0:0:0:0:0:ffff:4179:c427
65.121.196.40 0:0:0:0:0:ffff:4179:c428
65.121.196.41 0:0:0:0:0:ffff:4179:c429
65.121.196.42 0:0:0:0:0:ffff:4179:c42a
65.121.196.43 0:0:0:0:0:ffff:4179:c42b
65.121.196.44 0:0:0:0:0:ffff:4179:c42c
65.121.196.45 0:0:0:0:0:ffff:4179:c42d
65.121.196.46 0:0:0:0:0:ffff:4179:c42e
65.121.196.47 0:0:0:0:0:ffff:4179:c42f
65.121.196.48 0:0:0:0:0:ffff:4179:c430
65.121.196.49 0:0:0:0:0:ffff:4179:c431
65.121.196.50 0:0:0:0:0:ffff:4179:c432
65.121.196.51 0:0:0:0:0:ffff:4179:c433
65.121.196.52 0:0:0:0:0:ffff:4179:c434
65.121.196.53 0:0:0:0:0:ffff:4179:c435
65.121.196.54 0:0:0:0:0:ffff:4179:c436
65.121.196.55 0:0:0:0:0:ffff:4179:c437
65.121.196.56 0:0:0:0:0:ffff:4179:c438
65.121.196.57 0:0:0:0:0:ffff:4179:c439
65.121.196.58 0:0:0:0:0:ffff:4179:c43a
65.121.196.59 0:0:0:0:0:ffff:4179:c43b
65.121.196.60 0:0:0:0:0:ffff:4179:c43c


65.121.196.61 0:0:0:0:0:ffff:4179:c43d
65.121.196.62 0:0:0:0:0:ffff:4179:c43e
65.121.196.63 0:0:0:0:0:ffff:4179:c43f
65.121.196.64 0:0:0:0:0:ffff:4179:c440
65.121.196.65 0:0:0:0:0:ffff:4179:c441
65.121.196.66 0:0:0:0:0:ffff:4179:c442
65.121.196.67 0:0:0:0:0:ffff:4179:c443
65.121.196.68 0:0:0:0:0:ffff:4179:c444
65.121.196.69 0:0:0:0:0:ffff:4179:c445
65.121.196.70 0:0:0:0:0:ffff:4179:c446
65.121.196.71 0:0:0:0:0:ffff:4179:c447
65.121.196.72 0:0:0:0:0:ffff:4179:c448
65.121.196.73 0:0:0:0:0:ffff:4179:c449
65.121.196.74 0:0:0:0:0:ffff:4179:c44a
65.121.196.75 0:0:0:0:0:ffff:4179:c44b
65.121.196.76 0:0:0:0:0:ffff:4179:c44c
65.121.196.77 0:0:0:0:0:ffff:4179:c44d
65.121.196.78 0:0:0:0:0:ffff:4179:c44e
65.121.196.79 0:0:0:0:0:ffff:4179:c44f
65.121.196.80 0:0:0:0:0:ffff:4179:c450
65.121.196.81 0:0:0:0:0:ffff:4179:c451
65.121.196.82 0:0:0:0:0:ffff:4179:c452
65.121.196.83 0:0:0:0:0:ffff:4179:c453
65.121.196.84 0:0:0:0:0:ffff:4179:c454
65.121.196.85 0:0:0:0:0:ffff:4179:c455
65.121.196.86 0:0:0:0:0:ffff:4179:c456
65.121.196.87 0:0:0:0:0:ffff:4179:c457
65.121.196.88 0:0:0:0:0:ffff:4179:c458
65.121.196.89 0:0:0:0:0:ffff:4179:c459
65.121.196.90 0:0:0:0:0:ffff:4179:c45a
65.121.196.91 0:0:0:0:0:ffff:4179:c45b
65.121.196.92 0:0:0:0:0:ffff:4179:c45c
65.121.196.93 0:0:0:0:0:ffff:4179:c45d
65.121.196.94 0:0:0:0:0:ffff:4179:c45e
65.121.196.95 0:0:0:0:0:ffff:4179:c45f
65.121.196.96 0:0:0:0:0:ffff:4179:c460
65.121.196.97 0:0:0:0:0:ffff:4179:c461
65.121.196.98 0:0:0:0:0:ffff:4179:c462
65.121.196.99 0:0:0:0:0:ffff:4179:c463
65.121.196.100 0:0:0:0:0:ffff:4179:c464
65.121.196.101 0:0:0:0:0:ffff:4179:c465
65.121.196.102 0:0:0:0:0:ffff:4179:c466
65.121.196.103 0:0:0:0:0:ffff:4179:c467
65.121.196.104 0:0:0:0:0:ffff:4179:c468
65.121.196.105 0:0:0:0:0:ffff:4179:c469
65.121.196.106 0:0:0:0:0:ffff:4179:c46a
65.121.196.107 0:0:0:0:0:ffff:4179:c46b
65.121.196.108 0:0:0:0:0:ffff:4179:c46c
65.121.196.109 0:0:0:0:0:ffff:4179:c46d
65.121.196.110 0:0:0:0:0:ffff:4179:c46e
65.121.196.111 0:0:0:0:0:ffff:4179:c46f
65.121.196.112 0:0:0:0:0:ffff:4179:c470
65.121.196.113 0:0:0:0:0:ffff:4179:c471
65.121.196.114 0:0:0:0:0:ffff:4179:c472
65.121.196.115 0:0:0:0:0:ffff:4179:c473
65.121.196.116 0:0:0:0:0:ffff:4179:c474
65.121.196.117 0:0:0:0:0:ffff:4179:c475
65.121.196.118 0:0:0:0:0:ffff:4179:c476
65.121.196.119 0:0:0:0:0:ffff:4179:c477
65.121.196.120 0:0:0:0:0:ffff:4179:c478


65.121.196.121 0:0:0:0:0:ffff:4179:c479
65.121.196.122 0:0:0:0:0:ffff:4179:c47a
65.121.196.123 0:0:0:0:0:ffff:4179:c47b
65.121.196.124 0:0:0:0:0:ffff:4179:c47c
65.121.196.125 0:0:0:0:0:ffff:4179:c47d
65.121.196.126 0:0:0:0:0:ffff:4179:c47e
65.121.196.127 0:0:0:0:0:ffff:4179:c47f
65.121.196.128 0:0:0:0:0:ffff:4179:c480
65.121.196.129 0:0:0:0:0:ffff:4179:c481
65.121.196.130 0:0:0:0:0:ffff:4179:c482
65.121.196.131 0:0:0:0:0:ffff:4179:c483
65.121.196.132 0:0:0:0:0:ffff:4179:c484
65.121.196.133 0:0:0:0:0:ffff:4179:c485
65.121.196.134 0:0:0:0:0:ffff:4179:c486
65.121.196.135 0:0:0:0:0:ffff:4179:c487
65.121.196.136 0:0:0:0:0:ffff:4179:c488
65.121.196.137 0:0:0:0:0:ffff:4179:c489
65.121.196.138 0:0:0:0:0:ffff:4179:c48a
65.121.196.139 0:0:0:0:0:ffff:4179:c48b
65.121.196.140 0:0:0:0:0:ffff:4179:c48c
65.121.196.141 0:0:0:0:0:ffff:4179:c48d
65.121.196.142 0:0:0:0:0:ffff:4179:c48e
65.121.196.143 0:0:0:0:0:ffff:4179:c48f
65.121.196.144 0:0:0:0:0:ffff:4179:c490
65.121.196.145 0:0:0:0:0:ffff:4179:c491
65.121.196.146 0:0:0:0:0:ffff:4179:c492
65.121.196.147 0:0:0:0:0:ffff:4179:c493
65.121.196.148 0:0:0:0:0:ffff:4179:c494
65.121.196.149 0:0:0:0:0:ffff:4179:c495
65.121.196.150 0:0:0:0:0:ffff:4179:c496
65.121.196.151 0:0:0:0:0:ffff:4179:c497
65.121.196.152 0:0:0:0:0:ffff:4179:c498
65.121.196.153 0:0:0:0:0:ffff:4179:c499
65.121.196.154 0:0:0:0:0:ffff:4179:c49a
65.121.196.155 0:0:0:0:0:ffff:4179:c49b
65.121.196.156 0:0:0:0:0:ffff:4179:c49c
65.121.196.157 0:0:0:0:0:ffff:4179:c49d
65.121.196.158 0:0:0:0:0:ffff:4179:c49e
65.121.196.159 0:0:0:0:0:ffff:4179:c49f
65.121.196.160 0:0:0:0:0:ffff:4179:c4a0
65.121.196.161 0:0:0:0:0:ffff:4179:c4a1
65.121.196.162 0:0:0:0:0:ffff:4179:c4a2
65.121.196.163 0:0:0:0:0:ffff:4179:c4a3
65.121.196.164 0:0:0:0:0:ffff:4179:c4a4
65.121.196.165 0:0:0:0:0:ffff:4179:c4a5
65.121.196.166 0:0:0:0:0:ffff:4179:c4a6
65.121.196.167 0:0:0:0:0:ffff:4179:c4a7
65.121.196.168 0:0:0:0:0:ffff:4179:c4a8
65.121.196.169 0:0:0:0:0:ffff:4179:c4a9
65.121.196.170 0:0:0:0:0:ffff:4179:c4aa
65.121.196.171 0:0:0:0:0:ffff:4179:c4ab
65.121.196.172 0:0:0:0:0:ffff:4179:c4ac
65.121.196.173 0:0:0:0:0:ffff:4179:c4ad
65.121.196.174 0:0:0:0:0:ffff:4179:c4ae
65.121.196.175 0:0:0:0:0:ffff:4179:c4af
65.121.196.176 0:0:0:0:0:ffff:4179:c4b0
65.121.196.177 0:0:0:0:0:ffff:4179:c4b1
65.121.196.178 0:0:0:0:0:ffff:4179:c4b2
65.121.196.179 0:0:0:0:0:ffff:4179:c4b3
65.121.196.180 0:0:0:0:0:ffff:4179:c4b4


65.121.196.181 0:0:0:0:0:ffff:4179:c4b5
65.121.196.182 0:0:0:0:0:ffff:4179:c4b6
65.121.196.183 0:0:0:0:0:ffff:4179:c4b7
65.121.196.184 0:0:0:0:0:ffff:4179:c4b8
65.121.196.185 0:0:0:0:0:ffff:4179:c4b9
65.121.196.186 0:0:0:0:0:ffff:4179:c4ba
65.121.196.187 0:0:0:0:0:ffff:4179:c4bb
65.121.196.188 0:0:0:0:0:ffff:4179:c4bc
65.121.196.189 0:0:0:0:0:ffff:4179:c4bd
65.121.196.190 0:0:0:0:0:ffff:4179:c4be
65.121.196.191 0:0:0:0:0:ffff:4179:c4bf
65.121.196.192 0:0:0:0:0:ffff:4179:c4c0
65.121.196.193 0:0:0:0:0:ffff:4179:c4c1
65.121.196.194 0:0:0:0:0:ffff:4179:c4c2
65.121.196.195 0:0:0:0:0:ffff:4179:c4c3
65.121.196.196 0:0:0:0:0:ffff:4179:c4c4
65.121.196.197 0:0:0:0:0:ffff:4179:c4c5
65.121.196.198 0:0:0:0:0:ffff:4179:c4c6
65.121.196.199 0:0:0:0:0:ffff:4179:c4c7
65.121.196.200 0:0:0:0:0:ffff:4179:c4c8
65.121.196.201 0:0:0:0:0:ffff:4179:c4c9
65.121.196.202 0:0:0:0:0:ffff:4179:c4ca
65.121.196.203 0:0:0:0:0:ffff:4179:c4cb
65.121.196.204 0:0:0:0:0:ffff:4179:c4cc
65.121.196.205 0:0:0:0:0:ffff:4179:c4cd
65.121.196.206 0:0:0:0:0:ffff:4179:c4ce
65.121.196.207 0:0:0:0:0:ffff:4179:c4cf
65.121.196.208 0:0:0:0:0:ffff:4179:c4d0
65.121.196.209 0:0:0:0:0:ffff:4179:c4d1
65.121.196.210 0:0:0:0:0:ffff:4179:c4d2
65.121.196.211 0:0:0:0:0:ffff:4179:c4d3
65.121.196.212 0:0:0:0:0:ffff:4179:c4d4
65.121.196.213 0:0:0:0:0:ffff:4179:c4d5
65.121.196.214 0:0:0:0:0:ffff:4179:c4d6
65.121.196.215 0:0:0:0:0:ffff:4179:c4d7
65.121.196.216 0:0:0:0:0:ffff:4179:c4d8
65.121.196.217 0:0:0:0:0:ffff:4179:c4d9
65.121.196.218 0:0:0:0:0:ffff:4179:c4da
65.121.196.219 0:0:0:0:0:ffff:4179:c4db
65.121.196.220 0:0:0:0:0:ffff:4179:c4dc
65.121.196.221 0:0:0:0:0:ffff:4179:c4dd
65.121.196.222 0:0:0:0:0:ffff:4179:c4de
65.121.196.223 0:0:0:0:0:ffff:4179:c4df
65.121.196.224 0:0:0:0:0:ffff:4179:c4e0
65.121.196.225 0:0:0:0:0:ffff:4179:c4e1
65.121.196.226 0:0:0:0:0:ffff:4179:c4e2
65.121.196.227 0:0:0:0:0:ffff:4179:c4e3
65.121.196.228 0:0:0:0:0:ffff:4179:c4e4
65.121.196.229 0:0:0:0:0:ffff:4179:c4e5
65.121.196.230 0:0:0:0:0:ffff:4179:c4e6
65.121.196.231 0:0:0:0:0:ffff:4179:c4e7
65.121.196.232 0:0:0:0:0:ffff:4179:c4e8
65.121.196.233 0:0:0:0:0:ffff:4179:c4e9
65.121.196.234 0:0:0:0:0:ffff:4179:c4ea
65.121.196.235 0:0:0:0:0:ffff:4179:c4eb
65.121.196.236 0:0:0:0:0:ffff:4179:c4ec
65.121.196.237 0:0:0:0:0:ffff:4179:c4ed
65.121.196.238 0:0:0:0:0:ffff:4179:c4ee
65.121.196.239 0:0:0:0:0:ffff:4179:c4ef
65.121.196.240 0:0:0:0:0:ffff:4179:c4f0
65.121.196.241 0:0:0:0:0:ffff:4179:c4f1
65.121.196.242 0:0:0:0:0:ffff:4179:c4f2
65.121.196.243 0:0:0:0:0:ffff:4179:c4f3
65.121.196.244 0:0:0:0:0:ffff:4179:c4f4
65.121.196.245 0:0:0:0:0:ffff:4179:c4f5
65.121.196.246 0:0:0:0:0:ffff:4179:c4f6
65.121.196.247 0:0:0:0:0:ffff:4179:c4f7
65.121.196.248 0:0:0:0:0:ffff:4179:c4f8
65.121.196.249 0:0:0:0:0:ffff:4179:c4f9
65.121.196.250 0:0:0:0:0:ffff:4179:c4fa
65.121.196.251 0:0:0:0:0:ffff:4179:c4fb
65.121.196.252 0:0:0:0:0:ffff:4179:c4fc
65.121.196.253 0:0:0:0:0:ffff:4179:c4fd
65.121.196.254 0:0:0:0:0:ffff:4179:c4fe
65.121.196.255 0:0:0:0:0:ffff:4179: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.