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
139.12.131.1 0:0:0:0:0:ffff:8b0c:8301
139.12.131.2 0:0:0:0:0:ffff:8b0c:8302
139.12.131.3 0:0:0:0:0:ffff:8b0c:8303
139.12.131.4 0:0:0:0:0:ffff:8b0c:8304
139.12.131.5 0:0:0:0:0:ffff:8b0c:8305
139.12.131.6 0:0:0:0:0:ffff:8b0c:8306
139.12.131.7 0:0:0:0:0:ffff:8b0c:8307
139.12.131.8 0:0:0:0:0:ffff:8b0c:8308
139.12.131.9 0:0:0:0:0:ffff:8b0c:8309
139.12.131.10 0:0:0:0:0:ffff:8b0c:830a
139.12.131.11 0:0:0:0:0:ffff:8b0c:830b
139.12.131.12 0:0:0:0:0:ffff:8b0c:830c
139.12.131.13 0:0:0:0:0:ffff:8b0c:830d
139.12.131.14 0:0:0:0:0:ffff:8b0c:830e
139.12.131.15 0:0:0:0:0:ffff:8b0c:830f
139.12.131.16 0:0:0:0:0:ffff:8b0c:8310
139.12.131.17 0:0:0:0:0:ffff:8b0c:8311
139.12.131.18 0:0:0:0:0:ffff:8b0c:8312
139.12.131.19 0:0:0:0:0:ffff:8b0c:8313
139.12.131.20 0:0:0:0:0:ffff:8b0c:8314
139.12.131.21 0:0:0:0:0:ffff:8b0c:8315
139.12.131.22 0:0:0:0:0:ffff:8b0c:8316
139.12.131.23 0:0:0:0:0:ffff:8b0c:8317
139.12.131.24 0:0:0:0:0:ffff:8b0c:8318
139.12.131.25 0:0:0:0:0:ffff:8b0c:8319
139.12.131.26 0:0:0:0:0:ffff:8b0c:831a
139.12.131.27 0:0:0:0:0:ffff:8b0c:831b
139.12.131.28 0:0:0:0:0:ffff:8b0c:831c
139.12.131.29 0:0:0:0:0:ffff:8b0c:831d
139.12.131.30 0:0:0:0:0:ffff:8b0c:831e
139.12.131.31 0:0:0:0:0:ffff:8b0c:831f
139.12.131.32 0:0:0:0:0:ffff:8b0c:8320
139.12.131.33 0:0:0:0:0:ffff:8b0c:8321
139.12.131.34 0:0:0:0:0:ffff:8b0c:8322
139.12.131.35 0:0:0:0:0:ffff:8b0c:8323
139.12.131.36 0:0:0:0:0:ffff:8b0c:8324
139.12.131.37 0:0:0:0:0:ffff:8b0c:8325
139.12.131.38 0:0:0:0:0:ffff:8b0c:8326
139.12.131.39 0:0:0:0:0:ffff:8b0c:8327
139.12.131.40 0:0:0:0:0:ffff:8b0c:8328
139.12.131.41 0:0:0:0:0:ffff:8b0c:8329
139.12.131.42 0:0:0:0:0:ffff:8b0c:832a
139.12.131.43 0:0:0:0:0:ffff:8b0c:832b
139.12.131.44 0:0:0:0:0:ffff:8b0c:832c
139.12.131.45 0:0:0:0:0:ffff:8b0c:832d
139.12.131.46 0:0:0:0:0:ffff:8b0c:832e
139.12.131.47 0:0:0:0:0:ffff:8b0c:832f
139.12.131.48 0:0:0:0:0:ffff:8b0c:8330
139.12.131.49 0:0:0:0:0:ffff:8b0c:8331
139.12.131.50 0:0:0:0:0:ffff:8b0c:8332
139.12.131.51 0:0:0:0:0:ffff:8b0c:8333
139.12.131.52 0:0:0:0:0:ffff:8b0c:8334
139.12.131.53 0:0:0:0:0:ffff:8b0c:8335
139.12.131.54 0:0:0:0:0:ffff:8b0c:8336
139.12.131.55 0:0:0:0:0:ffff:8b0c:8337
139.12.131.56 0:0:0:0:0:ffff:8b0c:8338
139.12.131.57 0:0:0:0:0:ffff:8b0c:8339
139.12.131.58 0:0:0:0:0:ffff:8b0c:833a
139.12.131.59 0:0:0:0:0:ffff:8b0c:833b
139.12.131.60 0:0:0:0:0:ffff:8b0c:833c


139.12.131.61 0:0:0:0:0:ffff:8b0c:833d
139.12.131.62 0:0:0:0:0:ffff:8b0c:833e
139.12.131.63 0:0:0:0:0:ffff:8b0c:833f
139.12.131.64 0:0:0:0:0:ffff:8b0c:8340
139.12.131.65 0:0:0:0:0:ffff:8b0c:8341
139.12.131.66 0:0:0:0:0:ffff:8b0c:8342
139.12.131.67 0:0:0:0:0:ffff:8b0c:8343
139.12.131.68 0:0:0:0:0:ffff:8b0c:8344
139.12.131.69 0:0:0:0:0:ffff:8b0c:8345
139.12.131.70 0:0:0:0:0:ffff:8b0c:8346
139.12.131.71 0:0:0:0:0:ffff:8b0c:8347
139.12.131.72 0:0:0:0:0:ffff:8b0c:8348
139.12.131.73 0:0:0:0:0:ffff:8b0c:8349
139.12.131.74 0:0:0:0:0:ffff:8b0c:834a
139.12.131.75 0:0:0:0:0:ffff:8b0c:834b
139.12.131.76 0:0:0:0:0:ffff:8b0c:834c
139.12.131.77 0:0:0:0:0:ffff:8b0c:834d
139.12.131.78 0:0:0:0:0:ffff:8b0c:834e
139.12.131.79 0:0:0:0:0:ffff:8b0c:834f
139.12.131.80 0:0:0:0:0:ffff:8b0c:8350
139.12.131.81 0:0:0:0:0:ffff:8b0c:8351
139.12.131.82 0:0:0:0:0:ffff:8b0c:8352
139.12.131.83 0:0:0:0:0:ffff:8b0c:8353
139.12.131.84 0:0:0:0:0:ffff:8b0c:8354
139.12.131.85 0:0:0:0:0:ffff:8b0c:8355
139.12.131.86 0:0:0:0:0:ffff:8b0c:8356
139.12.131.87 0:0:0:0:0:ffff:8b0c:8357
139.12.131.88 0:0:0:0:0:ffff:8b0c:8358
139.12.131.89 0:0:0:0:0:ffff:8b0c:8359
139.12.131.90 0:0:0:0:0:ffff:8b0c:835a
139.12.131.91 0:0:0:0:0:ffff:8b0c:835b
139.12.131.92 0:0:0:0:0:ffff:8b0c:835c
139.12.131.93 0:0:0:0:0:ffff:8b0c:835d
139.12.131.94 0:0:0:0:0:ffff:8b0c:835e
139.12.131.95 0:0:0:0:0:ffff:8b0c:835f
139.12.131.96 0:0:0:0:0:ffff:8b0c:8360
139.12.131.97 0:0:0:0:0:ffff:8b0c:8361
139.12.131.98 0:0:0:0:0:ffff:8b0c:8362
139.12.131.99 0:0:0:0:0:ffff:8b0c:8363
139.12.131.100 0:0:0:0:0:ffff:8b0c:8364
139.12.131.101 0:0:0:0:0:ffff:8b0c:8365
139.12.131.102 0:0:0:0:0:ffff:8b0c:8366
139.12.131.103 0:0:0:0:0:ffff:8b0c:8367
139.12.131.104 0:0:0:0:0:ffff:8b0c:8368
139.12.131.105 0:0:0:0:0:ffff:8b0c:8369
139.12.131.106 0:0:0:0:0:ffff:8b0c:836a
139.12.131.107 0:0:0:0:0:ffff:8b0c:836b
139.12.131.108 0:0:0:0:0:ffff:8b0c:836c
139.12.131.109 0:0:0:0:0:ffff:8b0c:836d
139.12.131.110 0:0:0:0:0:ffff:8b0c:836e
139.12.131.111 0:0:0:0:0:ffff:8b0c:836f
139.12.131.112 0:0:0:0:0:ffff:8b0c:8370
139.12.131.113 0:0:0:0:0:ffff:8b0c:8371
139.12.131.114 0:0:0:0:0:ffff:8b0c:8372
139.12.131.115 0:0:0:0:0:ffff:8b0c:8373
139.12.131.116 0:0:0:0:0:ffff:8b0c:8374
139.12.131.117 0:0:0:0:0:ffff:8b0c:8375
139.12.131.118 0:0:0:0:0:ffff:8b0c:8376
139.12.131.119 0:0:0:0:0:ffff:8b0c:8377
139.12.131.120 0:0:0:0:0:ffff:8b0c:8378


139.12.131.121 0:0:0:0:0:ffff:8b0c:8379
139.12.131.122 0:0:0:0:0:ffff:8b0c:837a
139.12.131.123 0:0:0:0:0:ffff:8b0c:837b
139.12.131.124 0:0:0:0:0:ffff:8b0c:837c
139.12.131.125 0:0:0:0:0:ffff:8b0c:837d
139.12.131.126 0:0:0:0:0:ffff:8b0c:837e
139.12.131.127 0:0:0:0:0:ffff:8b0c:837f
139.12.131.128 0:0:0:0:0:ffff:8b0c:8380
139.12.131.129 0:0:0:0:0:ffff:8b0c:8381
139.12.131.130 0:0:0:0:0:ffff:8b0c:8382
139.12.131.131 0:0:0:0:0:ffff:8b0c:8383
139.12.131.132 0:0:0:0:0:ffff:8b0c:8384
139.12.131.133 0:0:0:0:0:ffff:8b0c:8385
139.12.131.134 0:0:0:0:0:ffff:8b0c:8386
139.12.131.135 0:0:0:0:0:ffff:8b0c:8387
139.12.131.136 0:0:0:0:0:ffff:8b0c:8388
139.12.131.137 0:0:0:0:0:ffff:8b0c:8389
139.12.131.138 0:0:0:0:0:ffff:8b0c:838a
139.12.131.139 0:0:0:0:0:ffff:8b0c:838b
139.12.131.140 0:0:0:0:0:ffff:8b0c:838c
139.12.131.141 0:0:0:0:0:ffff:8b0c:838d
139.12.131.142 0:0:0:0:0:ffff:8b0c:838e
139.12.131.143 0:0:0:0:0:ffff:8b0c:838f
139.12.131.144 0:0:0:0:0:ffff:8b0c:8390
139.12.131.145 0:0:0:0:0:ffff:8b0c:8391
139.12.131.146 0:0:0:0:0:ffff:8b0c:8392
139.12.131.147 0:0:0:0:0:ffff:8b0c:8393
139.12.131.148 0:0:0:0:0:ffff:8b0c:8394
139.12.131.149 0:0:0:0:0:ffff:8b0c:8395
139.12.131.150 0:0:0:0:0:ffff:8b0c:8396
139.12.131.151 0:0:0:0:0:ffff:8b0c:8397
139.12.131.152 0:0:0:0:0:ffff:8b0c:8398
139.12.131.153 0:0:0:0:0:ffff:8b0c:8399
139.12.131.154 0:0:0:0:0:ffff:8b0c:839a
139.12.131.155 0:0:0:0:0:ffff:8b0c:839b
139.12.131.156 0:0:0:0:0:ffff:8b0c:839c
139.12.131.157 0:0:0:0:0:ffff:8b0c:839d
139.12.131.158 0:0:0:0:0:ffff:8b0c:839e
139.12.131.159 0:0:0:0:0:ffff:8b0c:839f
139.12.131.160 0:0:0:0:0:ffff:8b0c:83a0
139.12.131.161 0:0:0:0:0:ffff:8b0c:83a1
139.12.131.162 0:0:0:0:0:ffff:8b0c:83a2
139.12.131.163 0:0:0:0:0:ffff:8b0c:83a3
139.12.131.164 0:0:0:0:0:ffff:8b0c:83a4
139.12.131.165 0:0:0:0:0:ffff:8b0c:83a5
139.12.131.166 0:0:0:0:0:ffff:8b0c:83a6
139.12.131.167 0:0:0:0:0:ffff:8b0c:83a7
139.12.131.168 0:0:0:0:0:ffff:8b0c:83a8
139.12.131.169 0:0:0:0:0:ffff:8b0c:83a9
139.12.131.170 0:0:0:0:0:ffff:8b0c:83aa
139.12.131.171 0:0:0:0:0:ffff:8b0c:83ab
139.12.131.172 0:0:0:0:0:ffff:8b0c:83ac
139.12.131.173 0:0:0:0:0:ffff:8b0c:83ad
139.12.131.174 0:0:0:0:0:ffff:8b0c:83ae
139.12.131.175 0:0:0:0:0:ffff:8b0c:83af
139.12.131.176 0:0:0:0:0:ffff:8b0c:83b0
139.12.131.177 0:0:0:0:0:ffff:8b0c:83b1
139.12.131.178 0:0:0:0:0:ffff:8b0c:83b2
139.12.131.179 0:0:0:0:0:ffff:8b0c:83b3
139.12.131.180 0:0:0:0:0:ffff:8b0c:83b4


139.12.131.181 0:0:0:0:0:ffff:8b0c:83b5
139.12.131.182 0:0:0:0:0:ffff:8b0c:83b6
139.12.131.183 0:0:0:0:0:ffff:8b0c:83b7
139.12.131.184 0:0:0:0:0:ffff:8b0c:83b8
139.12.131.185 0:0:0:0:0:ffff:8b0c:83b9
139.12.131.186 0:0:0:0:0:ffff:8b0c:83ba
139.12.131.187 0:0:0:0:0:ffff:8b0c:83bb
139.12.131.188 0:0:0:0:0:ffff:8b0c:83bc
139.12.131.189 0:0:0:0:0:ffff:8b0c:83bd
139.12.131.190 0:0:0:0:0:ffff:8b0c:83be
139.12.131.191 0:0:0:0:0:ffff:8b0c:83bf
139.12.131.192 0:0:0:0:0:ffff:8b0c:83c0
139.12.131.193 0:0:0:0:0:ffff:8b0c:83c1
139.12.131.194 0:0:0:0:0:ffff:8b0c:83c2
139.12.131.195 0:0:0:0:0:ffff:8b0c:83c3
139.12.131.196 0:0:0:0:0:ffff:8b0c:83c4
139.12.131.197 0:0:0:0:0:ffff:8b0c:83c5
139.12.131.198 0:0:0:0:0:ffff:8b0c:83c6
139.12.131.199 0:0:0:0:0:ffff:8b0c:83c7
139.12.131.200 0:0:0:0:0:ffff:8b0c:83c8
139.12.131.201 0:0:0:0:0:ffff:8b0c:83c9
139.12.131.202 0:0:0:0:0:ffff:8b0c:83ca
139.12.131.203 0:0:0:0:0:ffff:8b0c:83cb
139.12.131.204 0:0:0:0:0:ffff:8b0c:83cc
139.12.131.205 0:0:0:0:0:ffff:8b0c:83cd
139.12.131.206 0:0:0:0:0:ffff:8b0c:83ce
139.12.131.207 0:0:0:0:0:ffff:8b0c:83cf
139.12.131.208 0:0:0:0:0:ffff:8b0c:83d0
139.12.131.209 0:0:0:0:0:ffff:8b0c:83d1
139.12.131.210 0:0:0:0:0:ffff:8b0c:83d2
139.12.131.211 0:0:0:0:0:ffff:8b0c:83d3
139.12.131.212 0:0:0:0:0:ffff:8b0c:83d4
139.12.131.213 0:0:0:0:0:ffff:8b0c:83d5
139.12.131.214 0:0:0:0:0:ffff:8b0c:83d6
139.12.131.215 0:0:0:0:0:ffff:8b0c:83d7
139.12.131.216 0:0:0:0:0:ffff:8b0c:83d8
139.12.131.217 0:0:0:0:0:ffff:8b0c:83d9
139.12.131.218 0:0:0:0:0:ffff:8b0c:83da
139.12.131.219 0:0:0:0:0:ffff:8b0c:83db
139.12.131.220 0:0:0:0:0:ffff:8b0c:83dc
139.12.131.221 0:0:0:0:0:ffff:8b0c:83dd
139.12.131.222 0:0:0:0:0:ffff:8b0c:83de
139.12.131.223 0:0:0:0:0:ffff:8b0c:83df
139.12.131.224 0:0:0:0:0:ffff:8b0c:83e0
139.12.131.225 0:0:0:0:0:ffff:8b0c:83e1
139.12.131.226 0:0:0:0:0:ffff:8b0c:83e2
139.12.131.227 0:0:0:0:0:ffff:8b0c:83e3
139.12.131.228 0:0:0:0:0:ffff:8b0c:83e4
139.12.131.229 0:0:0:0:0:ffff:8b0c:83e5
139.12.131.230 0:0:0:0:0:ffff:8b0c:83e6
139.12.131.231 0:0:0:0:0:ffff:8b0c:83e7
139.12.131.232 0:0:0:0:0:ffff:8b0c:83e8
139.12.131.233 0:0:0:0:0:ffff:8b0c:83e9
139.12.131.234 0:0:0:0:0:ffff:8b0c:83ea
139.12.131.235 0:0:0:0:0:ffff:8b0c:83eb
139.12.131.236 0:0:0:0:0:ffff:8b0c:83ec
139.12.131.237 0:0:0:0:0:ffff:8b0c:83ed
139.12.131.238 0:0:0:0:0:ffff:8b0c:83ee
139.12.131.239 0:0:0:0:0:ffff:8b0c:83ef
139.12.131.240 0:0:0:0:0:ffff:8b0c:83f0
139.12.131.241 0:0:0:0:0:ffff:8b0c:83f1
139.12.131.242 0:0:0:0:0:ffff:8b0c:83f2
139.12.131.243 0:0:0:0:0:ffff:8b0c:83f3
139.12.131.244 0:0:0:0:0:ffff:8b0c:83f4
139.12.131.245 0:0:0:0:0:ffff:8b0c:83f5
139.12.131.246 0:0:0:0:0:ffff:8b0c:83f6
139.12.131.247 0:0:0:0:0:ffff:8b0c:83f7
139.12.131.248 0:0:0:0:0:ffff:8b0c:83f8
139.12.131.249 0:0:0:0:0:ffff:8b0c:83f9
139.12.131.250 0:0:0:0:0:ffff:8b0c:83fa
139.12.131.251 0:0:0:0:0:ffff:8b0c:83fb
139.12.131.252 0:0:0:0:0:ffff:8b0c:83fc
139.12.131.253 0:0:0:0:0:ffff:8b0c:83fd
139.12.131.254 0:0:0:0:0:ffff:8b0c:83fe
139.12.131.255 0:0:0:0:0:ffff:8b0c:83ff


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.