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
191.15.164.1 0:0:0:0:0:ffff:bf0f:a401
191.15.164.2 0:0:0:0:0:ffff:bf0f:a402
191.15.164.3 0:0:0:0:0:ffff:bf0f:a403
191.15.164.4 0:0:0:0:0:ffff:bf0f:a404
191.15.164.5 0:0:0:0:0:ffff:bf0f:a405
191.15.164.6 0:0:0:0:0:ffff:bf0f:a406
191.15.164.7 0:0:0:0:0:ffff:bf0f:a407
191.15.164.8 0:0:0:0:0:ffff:bf0f:a408
191.15.164.9 0:0:0:0:0:ffff:bf0f:a409
191.15.164.10 0:0:0:0:0:ffff:bf0f:a40a
191.15.164.11 0:0:0:0:0:ffff:bf0f:a40b
191.15.164.12 0:0:0:0:0:ffff:bf0f:a40c
191.15.164.13 0:0:0:0:0:ffff:bf0f:a40d
191.15.164.14 0:0:0:0:0:ffff:bf0f:a40e
191.15.164.15 0:0:0:0:0:ffff:bf0f:a40f
191.15.164.16 0:0:0:0:0:ffff:bf0f:a410
191.15.164.17 0:0:0:0:0:ffff:bf0f:a411
191.15.164.18 0:0:0:0:0:ffff:bf0f:a412
191.15.164.19 0:0:0:0:0:ffff:bf0f:a413
191.15.164.20 0:0:0:0:0:ffff:bf0f:a414
191.15.164.21 0:0:0:0:0:ffff:bf0f:a415
191.15.164.22 0:0:0:0:0:ffff:bf0f:a416
191.15.164.23 0:0:0:0:0:ffff:bf0f:a417
191.15.164.24 0:0:0:0:0:ffff:bf0f:a418
191.15.164.25 0:0:0:0:0:ffff:bf0f:a419
191.15.164.26 0:0:0:0:0:ffff:bf0f:a41a
191.15.164.27 0:0:0:0:0:ffff:bf0f:a41b
191.15.164.28 0:0:0:0:0:ffff:bf0f:a41c
191.15.164.29 0:0:0:0:0:ffff:bf0f:a41d
191.15.164.30 0:0:0:0:0:ffff:bf0f:a41e
191.15.164.31 0:0:0:0:0:ffff:bf0f:a41f
191.15.164.32 0:0:0:0:0:ffff:bf0f:a420
191.15.164.33 0:0:0:0:0:ffff:bf0f:a421
191.15.164.34 0:0:0:0:0:ffff:bf0f:a422
191.15.164.35 0:0:0:0:0:ffff:bf0f:a423
191.15.164.36 0:0:0:0:0:ffff:bf0f:a424
191.15.164.37 0:0:0:0:0:ffff:bf0f:a425
191.15.164.38 0:0:0:0:0:ffff:bf0f:a426
191.15.164.39 0:0:0:0:0:ffff:bf0f:a427
191.15.164.40 0:0:0:0:0:ffff:bf0f:a428
191.15.164.41 0:0:0:0:0:ffff:bf0f:a429
191.15.164.42 0:0:0:0:0:ffff:bf0f:a42a
191.15.164.43 0:0:0:0:0:ffff:bf0f:a42b
191.15.164.44 0:0:0:0:0:ffff:bf0f:a42c
191.15.164.45 0:0:0:0:0:ffff:bf0f:a42d
191.15.164.46 0:0:0:0:0:ffff:bf0f:a42e
191.15.164.47 0:0:0:0:0:ffff:bf0f:a42f
191.15.164.48 0:0:0:0:0:ffff:bf0f:a430
191.15.164.49 0:0:0:0:0:ffff:bf0f:a431
191.15.164.50 0:0:0:0:0:ffff:bf0f:a432
191.15.164.51 0:0:0:0:0:ffff:bf0f:a433
191.15.164.52 0:0:0:0:0:ffff:bf0f:a434
191.15.164.53 0:0:0:0:0:ffff:bf0f:a435
191.15.164.54 0:0:0:0:0:ffff:bf0f:a436
191.15.164.55 0:0:0:0:0:ffff:bf0f:a437
191.15.164.56 0:0:0:0:0:ffff:bf0f:a438
191.15.164.57 0:0:0:0:0:ffff:bf0f:a439
191.15.164.58 0:0:0:0:0:ffff:bf0f:a43a
191.15.164.59 0:0:0:0:0:ffff:bf0f:a43b
191.15.164.60 0:0:0:0:0:ffff:bf0f:a43c


191.15.164.61 0:0:0:0:0:ffff:bf0f:a43d
191.15.164.62 0:0:0:0:0:ffff:bf0f:a43e
191.15.164.63 0:0:0:0:0:ffff:bf0f:a43f
191.15.164.64 0:0:0:0:0:ffff:bf0f:a440
191.15.164.65 0:0:0:0:0:ffff:bf0f:a441
191.15.164.66 0:0:0:0:0:ffff:bf0f:a442
191.15.164.67 0:0:0:0:0:ffff:bf0f:a443
191.15.164.68 0:0:0:0:0:ffff:bf0f:a444
191.15.164.69 0:0:0:0:0:ffff:bf0f:a445
191.15.164.70 0:0:0:0:0:ffff:bf0f:a446
191.15.164.71 0:0:0:0:0:ffff:bf0f:a447
191.15.164.72 0:0:0:0:0:ffff:bf0f:a448
191.15.164.73 0:0:0:0:0:ffff:bf0f:a449
191.15.164.74 0:0:0:0:0:ffff:bf0f:a44a
191.15.164.75 0:0:0:0:0:ffff:bf0f:a44b
191.15.164.76 0:0:0:0:0:ffff:bf0f:a44c
191.15.164.77 0:0:0:0:0:ffff:bf0f:a44d
191.15.164.78 0:0:0:0:0:ffff:bf0f:a44e
191.15.164.79 0:0:0:0:0:ffff:bf0f:a44f
191.15.164.80 0:0:0:0:0:ffff:bf0f:a450
191.15.164.81 0:0:0:0:0:ffff:bf0f:a451
191.15.164.82 0:0:0:0:0:ffff:bf0f:a452
191.15.164.83 0:0:0:0:0:ffff:bf0f:a453
191.15.164.84 0:0:0:0:0:ffff:bf0f:a454
191.15.164.85 0:0:0:0:0:ffff:bf0f:a455
191.15.164.86 0:0:0:0:0:ffff:bf0f:a456
191.15.164.87 0:0:0:0:0:ffff:bf0f:a457
191.15.164.88 0:0:0:0:0:ffff:bf0f:a458
191.15.164.89 0:0:0:0:0:ffff:bf0f:a459
191.15.164.90 0:0:0:0:0:ffff:bf0f:a45a
191.15.164.91 0:0:0:0:0:ffff:bf0f:a45b
191.15.164.92 0:0:0:0:0:ffff:bf0f:a45c
191.15.164.93 0:0:0:0:0:ffff:bf0f:a45d
191.15.164.94 0:0:0:0:0:ffff:bf0f:a45e
191.15.164.95 0:0:0:0:0:ffff:bf0f:a45f
191.15.164.96 0:0:0:0:0:ffff:bf0f:a460
191.15.164.97 0:0:0:0:0:ffff:bf0f:a461
191.15.164.98 0:0:0:0:0:ffff:bf0f:a462
191.15.164.99 0:0:0:0:0:ffff:bf0f:a463
191.15.164.100 0:0:0:0:0:ffff:bf0f:a464
191.15.164.101 0:0:0:0:0:ffff:bf0f:a465
191.15.164.102 0:0:0:0:0:ffff:bf0f:a466
191.15.164.103 0:0:0:0:0:ffff:bf0f:a467
191.15.164.104 0:0:0:0:0:ffff:bf0f:a468
191.15.164.105 0:0:0:0:0:ffff:bf0f:a469
191.15.164.106 0:0:0:0:0:ffff:bf0f:a46a
191.15.164.107 0:0:0:0:0:ffff:bf0f:a46b
191.15.164.108 0:0:0:0:0:ffff:bf0f:a46c
191.15.164.109 0:0:0:0:0:ffff:bf0f:a46d
191.15.164.110 0:0:0:0:0:ffff:bf0f:a46e
191.15.164.111 0:0:0:0:0:ffff:bf0f:a46f
191.15.164.112 0:0:0:0:0:ffff:bf0f:a470
191.15.164.113 0:0:0:0:0:ffff:bf0f:a471
191.15.164.114 0:0:0:0:0:ffff:bf0f:a472
191.15.164.115 0:0:0:0:0:ffff:bf0f:a473
191.15.164.116 0:0:0:0:0:ffff:bf0f:a474
191.15.164.117 0:0:0:0:0:ffff:bf0f:a475
191.15.164.118 0:0:0:0:0:ffff:bf0f:a476
191.15.164.119 0:0:0:0:0:ffff:bf0f:a477
191.15.164.120 0:0:0:0:0:ffff:bf0f:a478


191.15.164.121 0:0:0:0:0:ffff:bf0f:a479
191.15.164.122 0:0:0:0:0:ffff:bf0f:a47a
191.15.164.123 0:0:0:0:0:ffff:bf0f:a47b
191.15.164.124 0:0:0:0:0:ffff:bf0f:a47c
191.15.164.125 0:0:0:0:0:ffff:bf0f:a47d
191.15.164.126 0:0:0:0:0:ffff:bf0f:a47e
191.15.164.127 0:0:0:0:0:ffff:bf0f:a47f
191.15.164.128 0:0:0:0:0:ffff:bf0f:a480
191.15.164.129 0:0:0:0:0:ffff:bf0f:a481
191.15.164.130 0:0:0:0:0:ffff:bf0f:a482
191.15.164.131 0:0:0:0:0:ffff:bf0f:a483
191.15.164.132 0:0:0:0:0:ffff:bf0f:a484
191.15.164.133 0:0:0:0:0:ffff:bf0f:a485
191.15.164.134 0:0:0:0:0:ffff:bf0f:a486
191.15.164.135 0:0:0:0:0:ffff:bf0f:a487
191.15.164.136 0:0:0:0:0:ffff:bf0f:a488
191.15.164.137 0:0:0:0:0:ffff:bf0f:a489
191.15.164.138 0:0:0:0:0:ffff:bf0f:a48a
191.15.164.139 0:0:0:0:0:ffff:bf0f:a48b
191.15.164.140 0:0:0:0:0:ffff:bf0f:a48c
191.15.164.141 0:0:0:0:0:ffff:bf0f:a48d
191.15.164.142 0:0:0:0:0:ffff:bf0f:a48e
191.15.164.143 0:0:0:0:0:ffff:bf0f:a48f
191.15.164.144 0:0:0:0:0:ffff:bf0f:a490
191.15.164.145 0:0:0:0:0:ffff:bf0f:a491
191.15.164.146 0:0:0:0:0:ffff:bf0f:a492
191.15.164.147 0:0:0:0:0:ffff:bf0f:a493
191.15.164.148 0:0:0:0:0:ffff:bf0f:a494
191.15.164.149 0:0:0:0:0:ffff:bf0f:a495
191.15.164.150 0:0:0:0:0:ffff:bf0f:a496
191.15.164.151 0:0:0:0:0:ffff:bf0f:a497
191.15.164.152 0:0:0:0:0:ffff:bf0f:a498
191.15.164.153 0:0:0:0:0:ffff:bf0f:a499
191.15.164.154 0:0:0:0:0:ffff:bf0f:a49a
191.15.164.155 0:0:0:0:0:ffff:bf0f:a49b
191.15.164.156 0:0:0:0:0:ffff:bf0f:a49c
191.15.164.157 0:0:0:0:0:ffff:bf0f:a49d
191.15.164.158 0:0:0:0:0:ffff:bf0f:a49e
191.15.164.159 0:0:0:0:0:ffff:bf0f:a49f
191.15.164.160 0:0:0:0:0:ffff:bf0f:a4a0
191.15.164.161 0:0:0:0:0:ffff:bf0f:a4a1
191.15.164.162 0:0:0:0:0:ffff:bf0f:a4a2
191.15.164.163 0:0:0:0:0:ffff:bf0f:a4a3
191.15.164.164 0:0:0:0:0:ffff:bf0f:a4a4
191.15.164.165 0:0:0:0:0:ffff:bf0f:a4a5
191.15.164.166 0:0:0:0:0:ffff:bf0f:a4a6
191.15.164.167 0:0:0:0:0:ffff:bf0f:a4a7
191.15.164.168 0:0:0:0:0:ffff:bf0f:a4a8
191.15.164.169 0:0:0:0:0:ffff:bf0f:a4a9
191.15.164.170 0:0:0:0:0:ffff:bf0f:a4aa
191.15.164.171 0:0:0:0:0:ffff:bf0f:a4ab
191.15.164.172 0:0:0:0:0:ffff:bf0f:a4ac
191.15.164.173 0:0:0:0:0:ffff:bf0f:a4ad
191.15.164.174 0:0:0:0:0:ffff:bf0f:a4ae
191.15.164.175 0:0:0:0:0:ffff:bf0f:a4af
191.15.164.176 0:0:0:0:0:ffff:bf0f:a4b0
191.15.164.177 0:0:0:0:0:ffff:bf0f:a4b1
191.15.164.178 0:0:0:0:0:ffff:bf0f:a4b2
191.15.164.179 0:0:0:0:0:ffff:bf0f:a4b3
191.15.164.180 0:0:0:0:0:ffff:bf0f:a4b4


191.15.164.181 0:0:0:0:0:ffff:bf0f:a4b5
191.15.164.182 0:0:0:0:0:ffff:bf0f:a4b6
191.15.164.183 0:0:0:0:0:ffff:bf0f:a4b7
191.15.164.184 0:0:0:0:0:ffff:bf0f:a4b8
191.15.164.185 0:0:0:0:0:ffff:bf0f:a4b9
191.15.164.186 0:0:0:0:0:ffff:bf0f:a4ba
191.15.164.187 0:0:0:0:0:ffff:bf0f:a4bb
191.15.164.188 0:0:0:0:0:ffff:bf0f:a4bc
191.15.164.189 0:0:0:0:0:ffff:bf0f:a4bd
191.15.164.190 0:0:0:0:0:ffff:bf0f:a4be
191.15.164.191 0:0:0:0:0:ffff:bf0f:a4bf
191.15.164.192 0:0:0:0:0:ffff:bf0f:a4c0
191.15.164.193 0:0:0:0:0:ffff:bf0f:a4c1
191.15.164.194 0:0:0:0:0:ffff:bf0f:a4c2
191.15.164.195 0:0:0:0:0:ffff:bf0f:a4c3
191.15.164.196 0:0:0:0:0:ffff:bf0f:a4c4
191.15.164.197 0:0:0:0:0:ffff:bf0f:a4c5
191.15.164.198 0:0:0:0:0:ffff:bf0f:a4c6
191.15.164.199 0:0:0:0:0:ffff:bf0f:a4c7
191.15.164.200 0:0:0:0:0:ffff:bf0f:a4c8
191.15.164.201 0:0:0:0:0:ffff:bf0f:a4c9
191.15.164.202 0:0:0:0:0:ffff:bf0f:a4ca
191.15.164.203 0:0:0:0:0:ffff:bf0f:a4cb
191.15.164.204 0:0:0:0:0:ffff:bf0f:a4cc
191.15.164.205 0:0:0:0:0:ffff:bf0f:a4cd
191.15.164.206 0:0:0:0:0:ffff:bf0f:a4ce
191.15.164.207 0:0:0:0:0:ffff:bf0f:a4cf
191.15.164.208 0:0:0:0:0:ffff:bf0f:a4d0
191.15.164.209 0:0:0:0:0:ffff:bf0f:a4d1
191.15.164.210 0:0:0:0:0:ffff:bf0f:a4d2
191.15.164.211 0:0:0:0:0:ffff:bf0f:a4d3
191.15.164.212 0:0:0:0:0:ffff:bf0f:a4d4
191.15.164.213 0:0:0:0:0:ffff:bf0f:a4d5
191.15.164.214 0:0:0:0:0:ffff:bf0f:a4d6
191.15.164.215 0:0:0:0:0:ffff:bf0f:a4d7
191.15.164.216 0:0:0:0:0:ffff:bf0f:a4d8
191.15.164.217 0:0:0:0:0:ffff:bf0f:a4d9
191.15.164.218 0:0:0:0:0:ffff:bf0f:a4da
191.15.164.219 0:0:0:0:0:ffff:bf0f:a4db
191.15.164.220 0:0:0:0:0:ffff:bf0f:a4dc
191.15.164.221 0:0:0:0:0:ffff:bf0f:a4dd
191.15.164.222 0:0:0:0:0:ffff:bf0f:a4de
191.15.164.223 0:0:0:0:0:ffff:bf0f:a4df
191.15.164.224 0:0:0:0:0:ffff:bf0f:a4e0
191.15.164.225 0:0:0:0:0:ffff:bf0f:a4e1
191.15.164.226 0:0:0:0:0:ffff:bf0f:a4e2
191.15.164.227 0:0:0:0:0:ffff:bf0f:a4e3
191.15.164.228 0:0:0:0:0:ffff:bf0f:a4e4
191.15.164.229 0:0:0:0:0:ffff:bf0f:a4e5
191.15.164.230 0:0:0:0:0:ffff:bf0f:a4e6
191.15.164.231 0:0:0:0:0:ffff:bf0f:a4e7
191.15.164.232 0:0:0:0:0:ffff:bf0f:a4e8
191.15.164.233 0:0:0:0:0:ffff:bf0f:a4e9
191.15.164.234 0:0:0:0:0:ffff:bf0f:a4ea
191.15.164.235 0:0:0:0:0:ffff:bf0f:a4eb
191.15.164.236 0:0:0:0:0:ffff:bf0f:a4ec
191.15.164.237 0:0:0:0:0:ffff:bf0f:a4ed
191.15.164.238 0:0:0:0:0:ffff:bf0f:a4ee
191.15.164.239 0:0:0:0:0:ffff:bf0f:a4ef
191.15.164.240 0:0:0:0:0:ffff:bf0f:a4f0
191.15.164.241 0:0:0:0:0:ffff:bf0f:a4f1
191.15.164.242 0:0:0:0:0:ffff:bf0f:a4f2
191.15.164.243 0:0:0:0:0:ffff:bf0f:a4f3
191.15.164.244 0:0:0:0:0:ffff:bf0f:a4f4
191.15.164.245 0:0:0:0:0:ffff:bf0f:a4f5
191.15.164.246 0:0:0:0:0:ffff:bf0f:a4f6
191.15.164.247 0:0:0:0:0:ffff:bf0f:a4f7
191.15.164.248 0:0:0:0:0:ffff:bf0f:a4f8
191.15.164.249 0:0:0:0:0:ffff:bf0f:a4f9
191.15.164.250 0:0:0:0:0:ffff:bf0f:a4fa
191.15.164.251 0:0:0:0:0:ffff:bf0f:a4fb
191.15.164.252 0:0:0:0:0:ffff:bf0f:a4fc
191.15.164.253 0:0:0:0:0:ffff:bf0f:a4fd
191.15.164.254 0:0:0:0:0:ffff:bf0f:a4fe
191.15.164.255 0:0:0:0:0:ffff:bf0f:a4ff


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.