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
66.165.196.1 0:0:0:0:0:ffff:42a5:c401
66.165.196.2 0:0:0:0:0:ffff:42a5:c402
66.165.196.3 0:0:0:0:0:ffff:42a5:c403
66.165.196.4 0:0:0:0:0:ffff:42a5:c404
66.165.196.5 0:0:0:0:0:ffff:42a5:c405
66.165.196.6 0:0:0:0:0:ffff:42a5:c406
66.165.196.7 0:0:0:0:0:ffff:42a5:c407
66.165.196.8 0:0:0:0:0:ffff:42a5:c408
66.165.196.9 0:0:0:0:0:ffff:42a5:c409
66.165.196.10 0:0:0:0:0:ffff:42a5:c40a
66.165.196.11 0:0:0:0:0:ffff:42a5:c40b
66.165.196.12 0:0:0:0:0:ffff:42a5:c40c
66.165.196.13 0:0:0:0:0:ffff:42a5:c40d
66.165.196.14 0:0:0:0:0:ffff:42a5:c40e
66.165.196.15 0:0:0:0:0:ffff:42a5:c40f
66.165.196.16 0:0:0:0:0:ffff:42a5:c410
66.165.196.17 0:0:0:0:0:ffff:42a5:c411
66.165.196.18 0:0:0:0:0:ffff:42a5:c412
66.165.196.19 0:0:0:0:0:ffff:42a5:c413
66.165.196.20 0:0:0:0:0:ffff:42a5:c414
66.165.196.21 0:0:0:0:0:ffff:42a5:c415
66.165.196.22 0:0:0:0:0:ffff:42a5:c416
66.165.196.23 0:0:0:0:0:ffff:42a5:c417
66.165.196.24 0:0:0:0:0:ffff:42a5:c418
66.165.196.25 0:0:0:0:0:ffff:42a5:c419
66.165.196.26 0:0:0:0:0:ffff:42a5:c41a
66.165.196.27 0:0:0:0:0:ffff:42a5:c41b
66.165.196.28 0:0:0:0:0:ffff:42a5:c41c
66.165.196.29 0:0:0:0:0:ffff:42a5:c41d
66.165.196.30 0:0:0:0:0:ffff:42a5:c41e
66.165.196.31 0:0:0:0:0:ffff:42a5:c41f
66.165.196.32 0:0:0:0:0:ffff:42a5:c420
66.165.196.33 0:0:0:0:0:ffff:42a5:c421
66.165.196.34 0:0:0:0:0:ffff:42a5:c422
66.165.196.35 0:0:0:0:0:ffff:42a5:c423
66.165.196.36 0:0:0:0:0:ffff:42a5:c424
66.165.196.37 0:0:0:0:0:ffff:42a5:c425
66.165.196.38 0:0:0:0:0:ffff:42a5:c426
66.165.196.39 0:0:0:0:0:ffff:42a5:c427
66.165.196.40 0:0:0:0:0:ffff:42a5:c428
66.165.196.41 0:0:0:0:0:ffff:42a5:c429
66.165.196.42 0:0:0:0:0:ffff:42a5:c42a
66.165.196.43 0:0:0:0:0:ffff:42a5:c42b
66.165.196.44 0:0:0:0:0:ffff:42a5:c42c
66.165.196.45 0:0:0:0:0:ffff:42a5:c42d
66.165.196.46 0:0:0:0:0:ffff:42a5:c42e
66.165.196.47 0:0:0:0:0:ffff:42a5:c42f
66.165.196.48 0:0:0:0:0:ffff:42a5:c430
66.165.196.49 0:0:0:0:0:ffff:42a5:c431
66.165.196.50 0:0:0:0:0:ffff:42a5:c432
66.165.196.51 0:0:0:0:0:ffff:42a5:c433
66.165.196.52 0:0:0:0:0:ffff:42a5:c434
66.165.196.53 0:0:0:0:0:ffff:42a5:c435
66.165.196.54 0:0:0:0:0:ffff:42a5:c436
66.165.196.55 0:0:0:0:0:ffff:42a5:c437
66.165.196.56 0:0:0:0:0:ffff:42a5:c438
66.165.196.57 0:0:0:0:0:ffff:42a5:c439
66.165.196.58 0:0:0:0:0:ffff:42a5:c43a
66.165.196.59 0:0:0:0:0:ffff:42a5:c43b
66.165.196.60 0:0:0:0:0:ffff:42a5:c43c


66.165.196.61 0:0:0:0:0:ffff:42a5:c43d
66.165.196.62 0:0:0:0:0:ffff:42a5:c43e
66.165.196.63 0:0:0:0:0:ffff:42a5:c43f
66.165.196.64 0:0:0:0:0:ffff:42a5:c440
66.165.196.65 0:0:0:0:0:ffff:42a5:c441
66.165.196.66 0:0:0:0:0:ffff:42a5:c442
66.165.196.67 0:0:0:0:0:ffff:42a5:c443
66.165.196.68 0:0:0:0:0:ffff:42a5:c444
66.165.196.69 0:0:0:0:0:ffff:42a5:c445
66.165.196.70 0:0:0:0:0:ffff:42a5:c446
66.165.196.71 0:0:0:0:0:ffff:42a5:c447
66.165.196.72 0:0:0:0:0:ffff:42a5:c448
66.165.196.73 0:0:0:0:0:ffff:42a5:c449
66.165.196.74 0:0:0:0:0:ffff:42a5:c44a
66.165.196.75 0:0:0:0:0:ffff:42a5:c44b
66.165.196.76 0:0:0:0:0:ffff:42a5:c44c
66.165.196.77 0:0:0:0:0:ffff:42a5:c44d
66.165.196.78 0:0:0:0:0:ffff:42a5:c44e
66.165.196.79 0:0:0:0:0:ffff:42a5:c44f
66.165.196.80 0:0:0:0:0:ffff:42a5:c450
66.165.196.81 0:0:0:0:0:ffff:42a5:c451
66.165.196.82 0:0:0:0:0:ffff:42a5:c452
66.165.196.83 0:0:0:0:0:ffff:42a5:c453
66.165.196.84 0:0:0:0:0:ffff:42a5:c454
66.165.196.85 0:0:0:0:0:ffff:42a5:c455
66.165.196.86 0:0:0:0:0:ffff:42a5:c456
66.165.196.87 0:0:0:0:0:ffff:42a5:c457
66.165.196.88 0:0:0:0:0:ffff:42a5:c458
66.165.196.89 0:0:0:0:0:ffff:42a5:c459
66.165.196.90 0:0:0:0:0:ffff:42a5:c45a
66.165.196.91 0:0:0:0:0:ffff:42a5:c45b
66.165.196.92 0:0:0:0:0:ffff:42a5:c45c
66.165.196.93 0:0:0:0:0:ffff:42a5:c45d
66.165.196.94 0:0:0:0:0:ffff:42a5:c45e
66.165.196.95 0:0:0:0:0:ffff:42a5:c45f
66.165.196.96 0:0:0:0:0:ffff:42a5:c460
66.165.196.97 0:0:0:0:0:ffff:42a5:c461
66.165.196.98 0:0:0:0:0:ffff:42a5:c462
66.165.196.99 0:0:0:0:0:ffff:42a5:c463
66.165.196.100 0:0:0:0:0:ffff:42a5:c464
66.165.196.101 0:0:0:0:0:ffff:42a5:c465
66.165.196.102 0:0:0:0:0:ffff:42a5:c466
66.165.196.103 0:0:0:0:0:ffff:42a5:c467
66.165.196.104 0:0:0:0:0:ffff:42a5:c468
66.165.196.105 0:0:0:0:0:ffff:42a5:c469
66.165.196.106 0:0:0:0:0:ffff:42a5:c46a
66.165.196.107 0:0:0:0:0:ffff:42a5:c46b
66.165.196.108 0:0:0:0:0:ffff:42a5:c46c
66.165.196.109 0:0:0:0:0:ffff:42a5:c46d
66.165.196.110 0:0:0:0:0:ffff:42a5:c46e
66.165.196.111 0:0:0:0:0:ffff:42a5:c46f
66.165.196.112 0:0:0:0:0:ffff:42a5:c470
66.165.196.113 0:0:0:0:0:ffff:42a5:c471
66.165.196.114 0:0:0:0:0:ffff:42a5:c472
66.165.196.115 0:0:0:0:0:ffff:42a5:c473
66.165.196.116 0:0:0:0:0:ffff:42a5:c474
66.165.196.117 0:0:0:0:0:ffff:42a5:c475
66.165.196.118 0:0:0:0:0:ffff:42a5:c476
66.165.196.119 0:0:0:0:0:ffff:42a5:c477
66.165.196.120 0:0:0:0:0:ffff:42a5:c478


66.165.196.121 0:0:0:0:0:ffff:42a5:c479
66.165.196.122 0:0:0:0:0:ffff:42a5:c47a
66.165.196.123 0:0:0:0:0:ffff:42a5:c47b
66.165.196.124 0:0:0:0:0:ffff:42a5:c47c
66.165.196.125 0:0:0:0:0:ffff:42a5:c47d
66.165.196.126 0:0:0:0:0:ffff:42a5:c47e
66.165.196.127 0:0:0:0:0:ffff:42a5:c47f
66.165.196.128 0:0:0:0:0:ffff:42a5:c480
66.165.196.129 0:0:0:0:0:ffff:42a5:c481
66.165.196.130 0:0:0:0:0:ffff:42a5:c482
66.165.196.131 0:0:0:0:0:ffff:42a5:c483
66.165.196.132 0:0:0:0:0:ffff:42a5:c484
66.165.196.133 0:0:0:0:0:ffff:42a5:c485
66.165.196.134 0:0:0:0:0:ffff:42a5:c486
66.165.196.135 0:0:0:0:0:ffff:42a5:c487
66.165.196.136 0:0:0:0:0:ffff:42a5:c488
66.165.196.137 0:0:0:0:0:ffff:42a5:c489
66.165.196.138 0:0:0:0:0:ffff:42a5:c48a
66.165.196.139 0:0:0:0:0:ffff:42a5:c48b
66.165.196.140 0:0:0:0:0:ffff:42a5:c48c
66.165.196.141 0:0:0:0:0:ffff:42a5:c48d
66.165.196.142 0:0:0:0:0:ffff:42a5:c48e
66.165.196.143 0:0:0:0:0:ffff:42a5:c48f
66.165.196.144 0:0:0:0:0:ffff:42a5:c490
66.165.196.145 0:0:0:0:0:ffff:42a5:c491
66.165.196.146 0:0:0:0:0:ffff:42a5:c492
66.165.196.147 0:0:0:0:0:ffff:42a5:c493
66.165.196.148 0:0:0:0:0:ffff:42a5:c494
66.165.196.149 0:0:0:0:0:ffff:42a5:c495
66.165.196.150 0:0:0:0:0:ffff:42a5:c496
66.165.196.151 0:0:0:0:0:ffff:42a5:c497
66.165.196.152 0:0:0:0:0:ffff:42a5:c498
66.165.196.153 0:0:0:0:0:ffff:42a5:c499
66.165.196.154 0:0:0:0:0:ffff:42a5:c49a
66.165.196.155 0:0:0:0:0:ffff:42a5:c49b
66.165.196.156 0:0:0:0:0:ffff:42a5:c49c
66.165.196.157 0:0:0:0:0:ffff:42a5:c49d
66.165.196.158 0:0:0:0:0:ffff:42a5:c49e
66.165.196.159 0:0:0:0:0:ffff:42a5:c49f
66.165.196.160 0:0:0:0:0:ffff:42a5:c4a0
66.165.196.161 0:0:0:0:0:ffff:42a5:c4a1
66.165.196.162 0:0:0:0:0:ffff:42a5:c4a2
66.165.196.163 0:0:0:0:0:ffff:42a5:c4a3
66.165.196.164 0:0:0:0:0:ffff:42a5:c4a4
66.165.196.165 0:0:0:0:0:ffff:42a5:c4a5
66.165.196.166 0:0:0:0:0:ffff:42a5:c4a6
66.165.196.167 0:0:0:0:0:ffff:42a5:c4a7
66.165.196.168 0:0:0:0:0:ffff:42a5:c4a8
66.165.196.169 0:0:0:0:0:ffff:42a5:c4a9
66.165.196.170 0:0:0:0:0:ffff:42a5:c4aa
66.165.196.171 0:0:0:0:0:ffff:42a5:c4ab
66.165.196.172 0:0:0:0:0:ffff:42a5:c4ac
66.165.196.173 0:0:0:0:0:ffff:42a5:c4ad
66.165.196.174 0:0:0:0:0:ffff:42a5:c4ae
66.165.196.175 0:0:0:0:0:ffff:42a5:c4af
66.165.196.176 0:0:0:0:0:ffff:42a5:c4b0
66.165.196.177 0:0:0:0:0:ffff:42a5:c4b1
66.165.196.178 0:0:0:0:0:ffff:42a5:c4b2
66.165.196.179 0:0:0:0:0:ffff:42a5:c4b3
66.165.196.180 0:0:0:0:0:ffff:42a5:c4b4


66.165.196.181 0:0:0:0:0:ffff:42a5:c4b5
66.165.196.182 0:0:0:0:0:ffff:42a5:c4b6
66.165.196.183 0:0:0:0:0:ffff:42a5:c4b7
66.165.196.184 0:0:0:0:0:ffff:42a5:c4b8
66.165.196.185 0:0:0:0:0:ffff:42a5:c4b9
66.165.196.186 0:0:0:0:0:ffff:42a5:c4ba
66.165.196.187 0:0:0:0:0:ffff:42a5:c4bb
66.165.196.188 0:0:0:0:0:ffff:42a5:c4bc
66.165.196.189 0:0:0:0:0:ffff:42a5:c4bd
66.165.196.190 0:0:0:0:0:ffff:42a5:c4be
66.165.196.191 0:0:0:0:0:ffff:42a5:c4bf
66.165.196.192 0:0:0:0:0:ffff:42a5:c4c0
66.165.196.193 0:0:0:0:0:ffff:42a5:c4c1
66.165.196.194 0:0:0:0:0:ffff:42a5:c4c2
66.165.196.195 0:0:0:0:0:ffff:42a5:c4c3
66.165.196.196 0:0:0:0:0:ffff:42a5:c4c4
66.165.196.197 0:0:0:0:0:ffff:42a5:c4c5
66.165.196.198 0:0:0:0:0:ffff:42a5:c4c6
66.165.196.199 0:0:0:0:0:ffff:42a5:c4c7
66.165.196.200 0:0:0:0:0:ffff:42a5:c4c8
66.165.196.201 0:0:0:0:0:ffff:42a5:c4c9
66.165.196.202 0:0:0:0:0:ffff:42a5:c4ca
66.165.196.203 0:0:0:0:0:ffff:42a5:c4cb
66.165.196.204 0:0:0:0:0:ffff:42a5:c4cc
66.165.196.205 0:0:0:0:0:ffff:42a5:c4cd
66.165.196.206 0:0:0:0:0:ffff:42a5:c4ce
66.165.196.207 0:0:0:0:0:ffff:42a5:c4cf
66.165.196.208 0:0:0:0:0:ffff:42a5:c4d0
66.165.196.209 0:0:0:0:0:ffff:42a5:c4d1
66.165.196.210 0:0:0:0:0:ffff:42a5:c4d2
66.165.196.211 0:0:0:0:0:ffff:42a5:c4d3
66.165.196.212 0:0:0:0:0:ffff:42a5:c4d4
66.165.196.213 0:0:0:0:0:ffff:42a5:c4d5
66.165.196.214 0:0:0:0:0:ffff:42a5:c4d6
66.165.196.215 0:0:0:0:0:ffff:42a5:c4d7
66.165.196.216 0:0:0:0:0:ffff:42a5:c4d8
66.165.196.217 0:0:0:0:0:ffff:42a5:c4d9
66.165.196.218 0:0:0:0:0:ffff:42a5:c4da
66.165.196.219 0:0:0:0:0:ffff:42a5:c4db
66.165.196.220 0:0:0:0:0:ffff:42a5:c4dc
66.165.196.221 0:0:0:0:0:ffff:42a5:c4dd
66.165.196.222 0:0:0:0:0:ffff:42a5:c4de
66.165.196.223 0:0:0:0:0:ffff:42a5:c4df
66.165.196.224 0:0:0:0:0:ffff:42a5:c4e0
66.165.196.225 0:0:0:0:0:ffff:42a5:c4e1
66.165.196.226 0:0:0:0:0:ffff:42a5:c4e2
66.165.196.227 0:0:0:0:0:ffff:42a5:c4e3
66.165.196.228 0:0:0:0:0:ffff:42a5:c4e4
66.165.196.229 0:0:0:0:0:ffff:42a5:c4e5
66.165.196.230 0:0:0:0:0:ffff:42a5:c4e6
66.165.196.231 0:0:0:0:0:ffff:42a5:c4e7
66.165.196.232 0:0:0:0:0:ffff:42a5:c4e8
66.165.196.233 0:0:0:0:0:ffff:42a5:c4e9
66.165.196.234 0:0:0:0:0:ffff:42a5:c4ea
66.165.196.235 0:0:0:0:0:ffff:42a5:c4eb
66.165.196.236 0:0:0:0:0:ffff:42a5:c4ec
66.165.196.237 0:0:0:0:0:ffff:42a5:c4ed
66.165.196.238 0:0:0:0:0:ffff:42a5:c4ee
66.165.196.239 0:0:0:0:0:ffff:42a5:c4ef
66.165.196.240 0:0:0:0:0:ffff:42a5:c4f0
66.165.196.241 0:0:0:0:0:ffff:42a5:c4f1
66.165.196.242 0:0:0:0:0:ffff:42a5:c4f2
66.165.196.243 0:0:0:0:0:ffff:42a5:c4f3
66.165.196.244 0:0:0:0:0:ffff:42a5:c4f4
66.165.196.245 0:0:0:0:0:ffff:42a5:c4f5
66.165.196.246 0:0:0:0:0:ffff:42a5:c4f6
66.165.196.247 0:0:0:0:0:ffff:42a5:c4f7
66.165.196.248 0:0:0:0:0:ffff:42a5:c4f8
66.165.196.249 0:0:0:0:0:ffff:42a5:c4f9
66.165.196.250 0:0:0:0:0:ffff:42a5:c4fa
66.165.196.251 0:0:0:0:0:ffff:42a5:c4fb
66.165.196.252 0:0:0:0:0:ffff:42a5:c4fc
66.165.196.253 0:0:0:0:0:ffff:42a5:c4fd
66.165.196.254 0:0:0:0:0:ffff:42a5:c4fe
66.165.196.255 0:0:0:0:0:ffff:42a5: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.