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
128.7.51.1 0:0:0:0:0:ffff:8007:3301
128.7.51.2 0:0:0:0:0:ffff:8007:3302
128.7.51.3 0:0:0:0:0:ffff:8007:3303
128.7.51.4 0:0:0:0:0:ffff:8007:3304
128.7.51.5 0:0:0:0:0:ffff:8007:3305
128.7.51.6 0:0:0:0:0:ffff:8007:3306
128.7.51.7 0:0:0:0:0:ffff:8007:3307
128.7.51.8 0:0:0:0:0:ffff:8007:3308
128.7.51.9 0:0:0:0:0:ffff:8007:3309
128.7.51.10 0:0:0:0:0:ffff:8007:330a
128.7.51.11 0:0:0:0:0:ffff:8007:330b
128.7.51.12 0:0:0:0:0:ffff:8007:330c
128.7.51.13 0:0:0:0:0:ffff:8007:330d
128.7.51.14 0:0:0:0:0:ffff:8007:330e
128.7.51.15 0:0:0:0:0:ffff:8007:330f
128.7.51.16 0:0:0:0:0:ffff:8007:3310
128.7.51.17 0:0:0:0:0:ffff:8007:3311
128.7.51.18 0:0:0:0:0:ffff:8007:3312
128.7.51.19 0:0:0:0:0:ffff:8007:3313
128.7.51.20 0:0:0:0:0:ffff:8007:3314
128.7.51.21 0:0:0:0:0:ffff:8007:3315
128.7.51.22 0:0:0:0:0:ffff:8007:3316
128.7.51.23 0:0:0:0:0:ffff:8007:3317
128.7.51.24 0:0:0:0:0:ffff:8007:3318
128.7.51.25 0:0:0:0:0:ffff:8007:3319
128.7.51.26 0:0:0:0:0:ffff:8007:331a
128.7.51.27 0:0:0:0:0:ffff:8007:331b
128.7.51.28 0:0:0:0:0:ffff:8007:331c
128.7.51.29 0:0:0:0:0:ffff:8007:331d
128.7.51.30 0:0:0:0:0:ffff:8007:331e
128.7.51.31 0:0:0:0:0:ffff:8007:331f
128.7.51.32 0:0:0:0:0:ffff:8007:3320
128.7.51.33 0:0:0:0:0:ffff:8007:3321
128.7.51.34 0:0:0:0:0:ffff:8007:3322
128.7.51.35 0:0:0:0:0:ffff:8007:3323
128.7.51.36 0:0:0:0:0:ffff:8007:3324
128.7.51.37 0:0:0:0:0:ffff:8007:3325
128.7.51.38 0:0:0:0:0:ffff:8007:3326
128.7.51.39 0:0:0:0:0:ffff:8007:3327
128.7.51.40 0:0:0:0:0:ffff:8007:3328
128.7.51.41 0:0:0:0:0:ffff:8007:3329
128.7.51.42 0:0:0:0:0:ffff:8007:332a
128.7.51.43 0:0:0:0:0:ffff:8007:332b
128.7.51.44 0:0:0:0:0:ffff:8007:332c
128.7.51.45 0:0:0:0:0:ffff:8007:332d
128.7.51.46 0:0:0:0:0:ffff:8007:332e
128.7.51.47 0:0:0:0:0:ffff:8007:332f
128.7.51.48 0:0:0:0:0:ffff:8007:3330
128.7.51.49 0:0:0:0:0:ffff:8007:3331
128.7.51.50 0:0:0:0:0:ffff:8007:3332
128.7.51.51 0:0:0:0:0:ffff:8007:3333
128.7.51.52 0:0:0:0:0:ffff:8007:3334
128.7.51.53 0:0:0:0:0:ffff:8007:3335
128.7.51.54 0:0:0:0:0:ffff:8007:3336
128.7.51.55 0:0:0:0:0:ffff:8007:3337
128.7.51.56 0:0:0:0:0:ffff:8007:3338
128.7.51.57 0:0:0:0:0:ffff:8007:3339
128.7.51.58 0:0:0:0:0:ffff:8007:333a
128.7.51.59 0:0:0:0:0:ffff:8007:333b
128.7.51.60 0:0:0:0:0:ffff:8007:333c


128.7.51.61 0:0:0:0:0:ffff:8007:333d
128.7.51.62 0:0:0:0:0:ffff:8007:333e
128.7.51.63 0:0:0:0:0:ffff:8007:333f
128.7.51.64 0:0:0:0:0:ffff:8007:3340
128.7.51.65 0:0:0:0:0:ffff:8007:3341
128.7.51.66 0:0:0:0:0:ffff:8007:3342
128.7.51.67 0:0:0:0:0:ffff:8007:3343
128.7.51.68 0:0:0:0:0:ffff:8007:3344
128.7.51.69 0:0:0:0:0:ffff:8007:3345
128.7.51.70 0:0:0:0:0:ffff:8007:3346
128.7.51.71 0:0:0:0:0:ffff:8007:3347
128.7.51.72 0:0:0:0:0:ffff:8007:3348
128.7.51.73 0:0:0:0:0:ffff:8007:3349
128.7.51.74 0:0:0:0:0:ffff:8007:334a
128.7.51.75 0:0:0:0:0:ffff:8007:334b
128.7.51.76 0:0:0:0:0:ffff:8007:334c
128.7.51.77 0:0:0:0:0:ffff:8007:334d
128.7.51.78 0:0:0:0:0:ffff:8007:334e
128.7.51.79 0:0:0:0:0:ffff:8007:334f
128.7.51.80 0:0:0:0:0:ffff:8007:3350
128.7.51.81 0:0:0:0:0:ffff:8007:3351
128.7.51.82 0:0:0:0:0:ffff:8007:3352
128.7.51.83 0:0:0:0:0:ffff:8007:3353
128.7.51.84 0:0:0:0:0:ffff:8007:3354
128.7.51.85 0:0:0:0:0:ffff:8007:3355
128.7.51.86 0:0:0:0:0:ffff:8007:3356
128.7.51.87 0:0:0:0:0:ffff:8007:3357
128.7.51.88 0:0:0:0:0:ffff:8007:3358
128.7.51.89 0:0:0:0:0:ffff:8007:3359
128.7.51.90 0:0:0:0:0:ffff:8007:335a
128.7.51.91 0:0:0:0:0:ffff:8007:335b
128.7.51.92 0:0:0:0:0:ffff:8007:335c
128.7.51.93 0:0:0:0:0:ffff:8007:335d
128.7.51.94 0:0:0:0:0:ffff:8007:335e
128.7.51.95 0:0:0:0:0:ffff:8007:335f
128.7.51.96 0:0:0:0:0:ffff:8007:3360
128.7.51.97 0:0:0:0:0:ffff:8007:3361
128.7.51.98 0:0:0:0:0:ffff:8007:3362
128.7.51.99 0:0:0:0:0:ffff:8007:3363
128.7.51.100 0:0:0:0:0:ffff:8007:3364
128.7.51.101 0:0:0:0:0:ffff:8007:3365
128.7.51.102 0:0:0:0:0:ffff:8007:3366
128.7.51.103 0:0:0:0:0:ffff:8007:3367
128.7.51.104 0:0:0:0:0:ffff:8007:3368
128.7.51.105 0:0:0:0:0:ffff:8007:3369
128.7.51.106 0:0:0:0:0:ffff:8007:336a
128.7.51.107 0:0:0:0:0:ffff:8007:336b
128.7.51.108 0:0:0:0:0:ffff:8007:336c
128.7.51.109 0:0:0:0:0:ffff:8007:336d
128.7.51.110 0:0:0:0:0:ffff:8007:336e
128.7.51.111 0:0:0:0:0:ffff:8007:336f
128.7.51.112 0:0:0:0:0:ffff:8007:3370
128.7.51.113 0:0:0:0:0:ffff:8007:3371
128.7.51.114 0:0:0:0:0:ffff:8007:3372
128.7.51.115 0:0:0:0:0:ffff:8007:3373
128.7.51.116 0:0:0:0:0:ffff:8007:3374
128.7.51.117 0:0:0:0:0:ffff:8007:3375
128.7.51.118 0:0:0:0:0:ffff:8007:3376
128.7.51.119 0:0:0:0:0:ffff:8007:3377
128.7.51.120 0:0:0:0:0:ffff:8007:3378


128.7.51.121 0:0:0:0:0:ffff:8007:3379
128.7.51.122 0:0:0:0:0:ffff:8007:337a
128.7.51.123 0:0:0:0:0:ffff:8007:337b
128.7.51.124 0:0:0:0:0:ffff:8007:337c
128.7.51.125 0:0:0:0:0:ffff:8007:337d
128.7.51.126 0:0:0:0:0:ffff:8007:337e
128.7.51.127 0:0:0:0:0:ffff:8007:337f
128.7.51.128 0:0:0:0:0:ffff:8007:3380
128.7.51.129 0:0:0:0:0:ffff:8007:3381
128.7.51.130 0:0:0:0:0:ffff:8007:3382
128.7.51.131 0:0:0:0:0:ffff:8007:3383
128.7.51.132 0:0:0:0:0:ffff:8007:3384
128.7.51.133 0:0:0:0:0:ffff:8007:3385
128.7.51.134 0:0:0:0:0:ffff:8007:3386
128.7.51.135 0:0:0:0:0:ffff:8007:3387
128.7.51.136 0:0:0:0:0:ffff:8007:3388
128.7.51.137 0:0:0:0:0:ffff:8007:3389
128.7.51.138 0:0:0:0:0:ffff:8007:338a
128.7.51.139 0:0:0:0:0:ffff:8007:338b
128.7.51.140 0:0:0:0:0:ffff:8007:338c
128.7.51.141 0:0:0:0:0:ffff:8007:338d
128.7.51.142 0:0:0:0:0:ffff:8007:338e
128.7.51.143 0:0:0:0:0:ffff:8007:338f
128.7.51.144 0:0:0:0:0:ffff:8007:3390
128.7.51.145 0:0:0:0:0:ffff:8007:3391
128.7.51.146 0:0:0:0:0:ffff:8007:3392
128.7.51.147 0:0:0:0:0:ffff:8007:3393
128.7.51.148 0:0:0:0:0:ffff:8007:3394
128.7.51.149 0:0:0:0:0:ffff:8007:3395
128.7.51.150 0:0:0:0:0:ffff:8007:3396
128.7.51.151 0:0:0:0:0:ffff:8007:3397
128.7.51.152 0:0:0:0:0:ffff:8007:3398
128.7.51.153 0:0:0:0:0:ffff:8007:3399
128.7.51.154 0:0:0:0:0:ffff:8007:339a
128.7.51.155 0:0:0:0:0:ffff:8007:339b
128.7.51.156 0:0:0:0:0:ffff:8007:339c
128.7.51.157 0:0:0:0:0:ffff:8007:339d
128.7.51.158 0:0:0:0:0:ffff:8007:339e
128.7.51.159 0:0:0:0:0:ffff:8007:339f
128.7.51.160 0:0:0:0:0:ffff:8007:33a0
128.7.51.161 0:0:0:0:0:ffff:8007:33a1
128.7.51.162 0:0:0:0:0:ffff:8007:33a2
128.7.51.163 0:0:0:0:0:ffff:8007:33a3
128.7.51.164 0:0:0:0:0:ffff:8007:33a4
128.7.51.165 0:0:0:0:0:ffff:8007:33a5
128.7.51.166 0:0:0:0:0:ffff:8007:33a6
128.7.51.167 0:0:0:0:0:ffff:8007:33a7
128.7.51.168 0:0:0:0:0:ffff:8007:33a8
128.7.51.169 0:0:0:0:0:ffff:8007:33a9
128.7.51.170 0:0:0:0:0:ffff:8007:33aa
128.7.51.171 0:0:0:0:0:ffff:8007:33ab
128.7.51.172 0:0:0:0:0:ffff:8007:33ac
128.7.51.173 0:0:0:0:0:ffff:8007:33ad
128.7.51.174 0:0:0:0:0:ffff:8007:33ae
128.7.51.175 0:0:0:0:0:ffff:8007:33af
128.7.51.176 0:0:0:0:0:ffff:8007:33b0
128.7.51.177 0:0:0:0:0:ffff:8007:33b1
128.7.51.178 0:0:0:0:0:ffff:8007:33b2
128.7.51.179 0:0:0:0:0:ffff:8007:33b3
128.7.51.180 0:0:0:0:0:ffff:8007:33b4


128.7.51.181 0:0:0:0:0:ffff:8007:33b5
128.7.51.182 0:0:0:0:0:ffff:8007:33b6
128.7.51.183 0:0:0:0:0:ffff:8007:33b7
128.7.51.184 0:0:0:0:0:ffff:8007:33b8
128.7.51.185 0:0:0:0:0:ffff:8007:33b9
128.7.51.186 0:0:0:0:0:ffff:8007:33ba
128.7.51.187 0:0:0:0:0:ffff:8007:33bb
128.7.51.188 0:0:0:0:0:ffff:8007:33bc
128.7.51.189 0:0:0:0:0:ffff:8007:33bd
128.7.51.190 0:0:0:0:0:ffff:8007:33be
128.7.51.191 0:0:0:0:0:ffff:8007:33bf
128.7.51.192 0:0:0:0:0:ffff:8007:33c0
128.7.51.193 0:0:0:0:0:ffff:8007:33c1
128.7.51.194 0:0:0:0:0:ffff:8007:33c2
128.7.51.195 0:0:0:0:0:ffff:8007:33c3
128.7.51.196 0:0:0:0:0:ffff:8007:33c4
128.7.51.197 0:0:0:0:0:ffff:8007:33c5
128.7.51.198 0:0:0:0:0:ffff:8007:33c6
128.7.51.199 0:0:0:0:0:ffff:8007:33c7
128.7.51.200 0:0:0:0:0:ffff:8007:33c8
128.7.51.201 0:0:0:0:0:ffff:8007:33c9
128.7.51.202 0:0:0:0:0:ffff:8007:33ca
128.7.51.203 0:0:0:0:0:ffff:8007:33cb
128.7.51.204 0:0:0:0:0:ffff:8007:33cc
128.7.51.205 0:0:0:0:0:ffff:8007:33cd
128.7.51.206 0:0:0:0:0:ffff:8007:33ce
128.7.51.207 0:0:0:0:0:ffff:8007:33cf
128.7.51.208 0:0:0:0:0:ffff:8007:33d0
128.7.51.209 0:0:0:0:0:ffff:8007:33d1
128.7.51.210 0:0:0:0:0:ffff:8007:33d2
128.7.51.211 0:0:0:0:0:ffff:8007:33d3
128.7.51.212 0:0:0:0:0:ffff:8007:33d4
128.7.51.213 0:0:0:0:0:ffff:8007:33d5
128.7.51.214 0:0:0:0:0:ffff:8007:33d6
128.7.51.215 0:0:0:0:0:ffff:8007:33d7
128.7.51.216 0:0:0:0:0:ffff:8007:33d8
128.7.51.217 0:0:0:0:0:ffff:8007:33d9
128.7.51.218 0:0:0:0:0:ffff:8007:33da
128.7.51.219 0:0:0:0:0:ffff:8007:33db
128.7.51.220 0:0:0:0:0:ffff:8007:33dc
128.7.51.221 0:0:0:0:0:ffff:8007:33dd
128.7.51.222 0:0:0:0:0:ffff:8007:33de
128.7.51.223 0:0:0:0:0:ffff:8007:33df
128.7.51.224 0:0:0:0:0:ffff:8007:33e0
128.7.51.225 0:0:0:0:0:ffff:8007:33e1
128.7.51.226 0:0:0:0:0:ffff:8007:33e2
128.7.51.227 0:0:0:0:0:ffff:8007:33e3
128.7.51.228 0:0:0:0:0:ffff:8007:33e4
128.7.51.229 0:0:0:0:0:ffff:8007:33e5
128.7.51.230 0:0:0:0:0:ffff:8007:33e6
128.7.51.231 0:0:0:0:0:ffff:8007:33e7
128.7.51.232 0:0:0:0:0:ffff:8007:33e8
128.7.51.233 0:0:0:0:0:ffff:8007:33e9
128.7.51.234 0:0:0:0:0:ffff:8007:33ea
128.7.51.235 0:0:0:0:0:ffff:8007:33eb
128.7.51.236 0:0:0:0:0:ffff:8007:33ec
128.7.51.237 0:0:0:0:0:ffff:8007:33ed
128.7.51.238 0:0:0:0:0:ffff:8007:33ee
128.7.51.239 0:0:0:0:0:ffff:8007:33ef
128.7.51.240 0:0:0:0:0:ffff:8007:33f0
128.7.51.241 0:0:0:0:0:ffff:8007:33f1
128.7.51.242 0:0:0:0:0:ffff:8007:33f2
128.7.51.243 0:0:0:0:0:ffff:8007:33f3
128.7.51.244 0:0:0:0:0:ffff:8007:33f4
128.7.51.245 0:0:0:0:0:ffff:8007:33f5
128.7.51.246 0:0:0:0:0:ffff:8007:33f6
128.7.51.247 0:0:0:0:0:ffff:8007:33f7
128.7.51.248 0:0:0:0:0:ffff:8007:33f8
128.7.51.249 0:0:0:0:0:ffff:8007:33f9
128.7.51.250 0:0:0:0:0:ffff:8007:33fa
128.7.51.251 0:0:0:0:0:ffff:8007:33fb
128.7.51.252 0:0:0:0:0:ffff:8007:33fc
128.7.51.253 0:0:0:0:0:ffff:8007:33fd
128.7.51.254 0:0:0:0:0:ffff:8007:33fe
128.7.51.255 0:0:0:0:0:ffff:8007:33ff


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.