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
51.139.3.1 0:0:0:0:0:ffff:338b:301
51.139.3.2 0:0:0:0:0:ffff:338b:302
51.139.3.3 0:0:0:0:0:ffff:338b:303
51.139.3.4 0:0:0:0:0:ffff:338b:304
51.139.3.5 0:0:0:0:0:ffff:338b:305
51.139.3.6 0:0:0:0:0:ffff:338b:306
51.139.3.7 0:0:0:0:0:ffff:338b:307
51.139.3.8 0:0:0:0:0:ffff:338b:308
51.139.3.9 0:0:0:0:0:ffff:338b:309
51.139.3.10 0:0:0:0:0:ffff:338b:30a
51.139.3.11 0:0:0:0:0:ffff:338b:30b
51.139.3.12 0:0:0:0:0:ffff:338b:30c
51.139.3.13 0:0:0:0:0:ffff:338b:30d
51.139.3.14 0:0:0:0:0:ffff:338b:30e
51.139.3.15 0:0:0:0:0:ffff:338b:30f
51.139.3.16 0:0:0:0:0:ffff:338b:310
51.139.3.17 0:0:0:0:0:ffff:338b:311
51.139.3.18 0:0:0:0:0:ffff:338b:312
51.139.3.19 0:0:0:0:0:ffff:338b:313
51.139.3.20 0:0:0:0:0:ffff:338b:314
51.139.3.21 0:0:0:0:0:ffff:338b:315
51.139.3.22 0:0:0:0:0:ffff:338b:316
51.139.3.23 0:0:0:0:0:ffff:338b:317
51.139.3.24 0:0:0:0:0:ffff:338b:318
51.139.3.25 0:0:0:0:0:ffff:338b:319
51.139.3.26 0:0:0:0:0:ffff:338b:31a
51.139.3.27 0:0:0:0:0:ffff:338b:31b
51.139.3.28 0:0:0:0:0:ffff:338b:31c
51.139.3.29 0:0:0:0:0:ffff:338b:31d
51.139.3.30 0:0:0:0:0:ffff:338b:31e
51.139.3.31 0:0:0:0:0:ffff:338b:31f
51.139.3.32 0:0:0:0:0:ffff:338b:320
51.139.3.33 0:0:0:0:0:ffff:338b:321
51.139.3.34 0:0:0:0:0:ffff:338b:322
51.139.3.35 0:0:0:0:0:ffff:338b:323
51.139.3.36 0:0:0:0:0:ffff:338b:324
51.139.3.37 0:0:0:0:0:ffff:338b:325
51.139.3.38 0:0:0:0:0:ffff:338b:326
51.139.3.39 0:0:0:0:0:ffff:338b:327
51.139.3.40 0:0:0:0:0:ffff:338b:328
51.139.3.41 0:0:0:0:0:ffff:338b:329
51.139.3.42 0:0:0:0:0:ffff:338b:32a
51.139.3.43 0:0:0:0:0:ffff:338b:32b
51.139.3.44 0:0:0:0:0:ffff:338b:32c
51.139.3.45 0:0:0:0:0:ffff:338b:32d
51.139.3.46 0:0:0:0:0:ffff:338b:32e
51.139.3.47 0:0:0:0:0:ffff:338b:32f
51.139.3.48 0:0:0:0:0:ffff:338b:330
51.139.3.49 0:0:0:0:0:ffff:338b:331
51.139.3.50 0:0:0:0:0:ffff:338b:332
51.139.3.51 0:0:0:0:0:ffff:338b:333
51.139.3.52 0:0:0:0:0:ffff:338b:334
51.139.3.53 0:0:0:0:0:ffff:338b:335
51.139.3.54 0:0:0:0:0:ffff:338b:336
51.139.3.55 0:0:0:0:0:ffff:338b:337
51.139.3.56 0:0:0:0:0:ffff:338b:338
51.139.3.57 0:0:0:0:0:ffff:338b:339
51.139.3.58 0:0:0:0:0:ffff:338b:33a
51.139.3.59 0:0:0:0:0:ffff:338b:33b
51.139.3.60 0:0:0:0:0:ffff:338b:33c


51.139.3.61 0:0:0:0:0:ffff:338b:33d
51.139.3.62 0:0:0:0:0:ffff:338b:33e
51.139.3.63 0:0:0:0:0:ffff:338b:33f
51.139.3.64 0:0:0:0:0:ffff:338b:340
51.139.3.65 0:0:0:0:0:ffff:338b:341
51.139.3.66 0:0:0:0:0:ffff:338b:342
51.139.3.67 0:0:0:0:0:ffff:338b:343
51.139.3.68 0:0:0:0:0:ffff:338b:344
51.139.3.69 0:0:0:0:0:ffff:338b:345
51.139.3.70 0:0:0:0:0:ffff:338b:346
51.139.3.71 0:0:0:0:0:ffff:338b:347
51.139.3.72 0:0:0:0:0:ffff:338b:348
51.139.3.73 0:0:0:0:0:ffff:338b:349
51.139.3.74 0:0:0:0:0:ffff:338b:34a
51.139.3.75 0:0:0:0:0:ffff:338b:34b
51.139.3.76 0:0:0:0:0:ffff:338b:34c
51.139.3.77 0:0:0:0:0:ffff:338b:34d
51.139.3.78 0:0:0:0:0:ffff:338b:34e
51.139.3.79 0:0:0:0:0:ffff:338b:34f
51.139.3.80 0:0:0:0:0:ffff:338b:350
51.139.3.81 0:0:0:0:0:ffff:338b:351
51.139.3.82 0:0:0:0:0:ffff:338b:352
51.139.3.83 0:0:0:0:0:ffff:338b:353
51.139.3.84 0:0:0:0:0:ffff:338b:354
51.139.3.85 0:0:0:0:0:ffff:338b:355
51.139.3.86 0:0:0:0:0:ffff:338b:356
51.139.3.87 0:0:0:0:0:ffff:338b:357
51.139.3.88 0:0:0:0:0:ffff:338b:358
51.139.3.89 0:0:0:0:0:ffff:338b:359
51.139.3.90 0:0:0:0:0:ffff:338b:35a
51.139.3.91 0:0:0:0:0:ffff:338b:35b
51.139.3.92 0:0:0:0:0:ffff:338b:35c
51.139.3.93 0:0:0:0:0:ffff:338b:35d
51.139.3.94 0:0:0:0:0:ffff:338b:35e
51.139.3.95 0:0:0:0:0:ffff:338b:35f
51.139.3.96 0:0:0:0:0:ffff:338b:360
51.139.3.97 0:0:0:0:0:ffff:338b:361
51.139.3.98 0:0:0:0:0:ffff:338b:362
51.139.3.99 0:0:0:0:0:ffff:338b:363
51.139.3.100 0:0:0:0:0:ffff:338b:364
51.139.3.101 0:0:0:0:0:ffff:338b:365
51.139.3.102 0:0:0:0:0:ffff:338b:366
51.139.3.103 0:0:0:0:0:ffff:338b:367
51.139.3.104 0:0:0:0:0:ffff:338b:368
51.139.3.105 0:0:0:0:0:ffff:338b:369
51.139.3.106 0:0:0:0:0:ffff:338b:36a
51.139.3.107 0:0:0:0:0:ffff:338b:36b
51.139.3.108 0:0:0:0:0:ffff:338b:36c
51.139.3.109 0:0:0:0:0:ffff:338b:36d
51.139.3.110 0:0:0:0:0:ffff:338b:36e
51.139.3.111 0:0:0:0:0:ffff:338b:36f
51.139.3.112 0:0:0:0:0:ffff:338b:370
51.139.3.113 0:0:0:0:0:ffff:338b:371
51.139.3.114 0:0:0:0:0:ffff:338b:372
51.139.3.115 0:0:0:0:0:ffff:338b:373
51.139.3.116 0:0:0:0:0:ffff:338b:374
51.139.3.117 0:0:0:0:0:ffff:338b:375
51.139.3.118 0:0:0:0:0:ffff:338b:376
51.139.3.119 0:0:0:0:0:ffff:338b:377
51.139.3.120 0:0:0:0:0:ffff:338b:378


51.139.3.121 0:0:0:0:0:ffff:338b:379
51.139.3.122 0:0:0:0:0:ffff:338b:37a
51.139.3.123 0:0:0:0:0:ffff:338b:37b
51.139.3.124 0:0:0:0:0:ffff:338b:37c
51.139.3.125 0:0:0:0:0:ffff:338b:37d
51.139.3.126 0:0:0:0:0:ffff:338b:37e
51.139.3.127 0:0:0:0:0:ffff:338b:37f
51.139.3.128 0:0:0:0:0:ffff:338b:380
51.139.3.129 0:0:0:0:0:ffff:338b:381
51.139.3.130 0:0:0:0:0:ffff:338b:382
51.139.3.131 0:0:0:0:0:ffff:338b:383
51.139.3.132 0:0:0:0:0:ffff:338b:384
51.139.3.133 0:0:0:0:0:ffff:338b:385
51.139.3.134 0:0:0:0:0:ffff:338b:386
51.139.3.135 0:0:0:0:0:ffff:338b:387
51.139.3.136 0:0:0:0:0:ffff:338b:388
51.139.3.137 0:0:0:0:0:ffff:338b:389
51.139.3.138 0:0:0:0:0:ffff:338b:38a
51.139.3.139 0:0:0:0:0:ffff:338b:38b
51.139.3.140 0:0:0:0:0:ffff:338b:38c
51.139.3.141 0:0:0:0:0:ffff:338b:38d
51.139.3.142 0:0:0:0:0:ffff:338b:38e
51.139.3.143 0:0:0:0:0:ffff:338b:38f
51.139.3.144 0:0:0:0:0:ffff:338b:390
51.139.3.145 0:0:0:0:0:ffff:338b:391
51.139.3.146 0:0:0:0:0:ffff:338b:392
51.139.3.147 0:0:0:0:0:ffff:338b:393
51.139.3.148 0:0:0:0:0:ffff:338b:394
51.139.3.149 0:0:0:0:0:ffff:338b:395
51.139.3.150 0:0:0:0:0:ffff:338b:396
51.139.3.151 0:0:0:0:0:ffff:338b:397
51.139.3.152 0:0:0:0:0:ffff:338b:398
51.139.3.153 0:0:0:0:0:ffff:338b:399
51.139.3.154 0:0:0:0:0:ffff:338b:39a
51.139.3.155 0:0:0:0:0:ffff:338b:39b
51.139.3.156 0:0:0:0:0:ffff:338b:39c
51.139.3.157 0:0:0:0:0:ffff:338b:39d
51.139.3.158 0:0:0:0:0:ffff:338b:39e
51.139.3.159 0:0:0:0:0:ffff:338b:39f
51.139.3.160 0:0:0:0:0:ffff:338b:3a0
51.139.3.161 0:0:0:0:0:ffff:338b:3a1
51.139.3.162 0:0:0:0:0:ffff:338b:3a2
51.139.3.163 0:0:0:0:0:ffff:338b:3a3
51.139.3.164 0:0:0:0:0:ffff:338b:3a4
51.139.3.165 0:0:0:0:0:ffff:338b:3a5
51.139.3.166 0:0:0:0:0:ffff:338b:3a6
51.139.3.167 0:0:0:0:0:ffff:338b:3a7
51.139.3.168 0:0:0:0:0:ffff:338b:3a8
51.139.3.169 0:0:0:0:0:ffff:338b:3a9
51.139.3.170 0:0:0:0:0:ffff:338b:3aa
51.139.3.171 0:0:0:0:0:ffff:338b:3ab
51.139.3.172 0:0:0:0:0:ffff:338b:3ac
51.139.3.173 0:0:0:0:0:ffff:338b:3ad
51.139.3.174 0:0:0:0:0:ffff:338b:3ae
51.139.3.175 0:0:0:0:0:ffff:338b:3af
51.139.3.176 0:0:0:0:0:ffff:338b:3b0
51.139.3.177 0:0:0:0:0:ffff:338b:3b1
51.139.3.178 0:0:0:0:0:ffff:338b:3b2
51.139.3.179 0:0:0:0:0:ffff:338b:3b3
51.139.3.180 0:0:0:0:0:ffff:338b:3b4


51.139.3.181 0:0:0:0:0:ffff:338b:3b5
51.139.3.182 0:0:0:0:0:ffff:338b:3b6
51.139.3.183 0:0:0:0:0:ffff:338b:3b7
51.139.3.184 0:0:0:0:0:ffff:338b:3b8
51.139.3.185 0:0:0:0:0:ffff:338b:3b9
51.139.3.186 0:0:0:0:0:ffff:338b:3ba
51.139.3.187 0:0:0:0:0:ffff:338b:3bb
51.139.3.188 0:0:0:0:0:ffff:338b:3bc
51.139.3.189 0:0:0:0:0:ffff:338b:3bd
51.139.3.190 0:0:0:0:0:ffff:338b:3be
51.139.3.191 0:0:0:0:0:ffff:338b:3bf
51.139.3.192 0:0:0:0:0:ffff:338b:3c0
51.139.3.193 0:0:0:0:0:ffff:338b:3c1
51.139.3.194 0:0:0:0:0:ffff:338b:3c2
51.139.3.195 0:0:0:0:0:ffff:338b:3c3
51.139.3.196 0:0:0:0:0:ffff:338b:3c4
51.139.3.197 0:0:0:0:0:ffff:338b:3c5
51.139.3.198 0:0:0:0:0:ffff:338b:3c6
51.139.3.199 0:0:0:0:0:ffff:338b:3c7
51.139.3.200 0:0:0:0:0:ffff:338b:3c8
51.139.3.201 0:0:0:0:0:ffff:338b:3c9
51.139.3.202 0:0:0:0:0:ffff:338b:3ca
51.139.3.203 0:0:0:0:0:ffff:338b:3cb
51.139.3.204 0:0:0:0:0:ffff:338b:3cc
51.139.3.205 0:0:0:0:0:ffff:338b:3cd
51.139.3.206 0:0:0:0:0:ffff:338b:3ce
51.139.3.207 0:0:0:0:0:ffff:338b:3cf
51.139.3.208 0:0:0:0:0:ffff:338b:3d0
51.139.3.209 0:0:0:0:0:ffff:338b:3d1
51.139.3.210 0:0:0:0:0:ffff:338b:3d2
51.139.3.211 0:0:0:0:0:ffff:338b:3d3
51.139.3.212 0:0:0:0:0:ffff:338b:3d4
51.139.3.213 0:0:0:0:0:ffff:338b:3d5
51.139.3.214 0:0:0:0:0:ffff:338b:3d6
51.139.3.215 0:0:0:0:0:ffff:338b:3d7
51.139.3.216 0:0:0:0:0:ffff:338b:3d8
51.139.3.217 0:0:0:0:0:ffff:338b:3d9
51.139.3.218 0:0:0:0:0:ffff:338b:3da
51.139.3.219 0:0:0:0:0:ffff:338b:3db
51.139.3.220 0:0:0:0:0:ffff:338b:3dc
51.139.3.221 0:0:0:0:0:ffff:338b:3dd
51.139.3.222 0:0:0:0:0:ffff:338b:3de
51.139.3.223 0:0:0:0:0:ffff:338b:3df
51.139.3.224 0:0:0:0:0:ffff:338b:3e0
51.139.3.225 0:0:0:0:0:ffff:338b:3e1
51.139.3.226 0:0:0:0:0:ffff:338b:3e2
51.139.3.227 0:0:0:0:0:ffff:338b:3e3
51.139.3.228 0:0:0:0:0:ffff:338b:3e4
51.139.3.229 0:0:0:0:0:ffff:338b:3e5
51.139.3.230 0:0:0:0:0:ffff:338b:3e6
51.139.3.231 0:0:0:0:0:ffff:338b:3e7
51.139.3.232 0:0:0:0:0:ffff:338b:3e8
51.139.3.233 0:0:0:0:0:ffff:338b:3e9
51.139.3.234 0:0:0:0:0:ffff:338b:3ea
51.139.3.235 0:0:0:0:0:ffff:338b:3eb
51.139.3.236 0:0:0:0:0:ffff:338b:3ec
51.139.3.237 0:0:0:0:0:ffff:338b:3ed
51.139.3.238 0:0:0:0:0:ffff:338b:3ee
51.139.3.239 0:0:0:0:0:ffff:338b:3ef
51.139.3.240 0:0:0:0:0:ffff:338b:3f0
51.139.3.241 0:0:0:0:0:ffff:338b:3f1
51.139.3.242 0:0:0:0:0:ffff:338b:3f2
51.139.3.243 0:0:0:0:0:ffff:338b:3f3
51.139.3.244 0:0:0:0:0:ffff:338b:3f4
51.139.3.245 0:0:0:0:0:ffff:338b:3f5
51.139.3.246 0:0:0:0:0:ffff:338b:3f6
51.139.3.247 0:0:0:0:0:ffff:338b:3f7
51.139.3.248 0:0:0:0:0:ffff:338b:3f8
51.139.3.249 0:0:0:0:0:ffff:338b:3f9
51.139.3.250 0:0:0:0:0:ffff:338b:3fa
51.139.3.251 0:0:0:0:0:ffff:338b:3fb
51.139.3.252 0:0:0:0:0:ffff:338b:3fc
51.139.3.253 0:0:0:0:0:ffff:338b:3fd
51.139.3.254 0:0:0:0:0:ffff:338b:3fe
51.139.3.255 0:0:0:0:0:ffff:338b:3ff


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.