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
81.56.52.1 0:0:0:0:0:ffff:5138:3401
81.56.52.2 0:0:0:0:0:ffff:5138:3402
81.56.52.3 0:0:0:0:0:ffff:5138:3403
81.56.52.4 0:0:0:0:0:ffff:5138:3404
81.56.52.5 0:0:0:0:0:ffff:5138:3405
81.56.52.6 0:0:0:0:0:ffff:5138:3406
81.56.52.7 0:0:0:0:0:ffff:5138:3407
81.56.52.8 0:0:0:0:0:ffff:5138:3408
81.56.52.9 0:0:0:0:0:ffff:5138:3409
81.56.52.10 0:0:0:0:0:ffff:5138:340a
81.56.52.11 0:0:0:0:0:ffff:5138:340b
81.56.52.12 0:0:0:0:0:ffff:5138:340c
81.56.52.13 0:0:0:0:0:ffff:5138:340d
81.56.52.14 0:0:0:0:0:ffff:5138:340e
81.56.52.15 0:0:0:0:0:ffff:5138:340f
81.56.52.16 0:0:0:0:0:ffff:5138:3410
81.56.52.17 0:0:0:0:0:ffff:5138:3411
81.56.52.18 0:0:0:0:0:ffff:5138:3412
81.56.52.19 0:0:0:0:0:ffff:5138:3413
81.56.52.20 0:0:0:0:0:ffff:5138:3414
81.56.52.21 0:0:0:0:0:ffff:5138:3415
81.56.52.22 0:0:0:0:0:ffff:5138:3416
81.56.52.23 0:0:0:0:0:ffff:5138:3417
81.56.52.24 0:0:0:0:0:ffff:5138:3418
81.56.52.25 0:0:0:0:0:ffff:5138:3419
81.56.52.26 0:0:0:0:0:ffff:5138:341a
81.56.52.27 0:0:0:0:0:ffff:5138:341b
81.56.52.28 0:0:0:0:0:ffff:5138:341c
81.56.52.29 0:0:0:0:0:ffff:5138:341d
81.56.52.30 0:0:0:0:0:ffff:5138:341e
81.56.52.31 0:0:0:0:0:ffff:5138:341f
81.56.52.32 0:0:0:0:0:ffff:5138:3420
81.56.52.33 0:0:0:0:0:ffff:5138:3421
81.56.52.34 0:0:0:0:0:ffff:5138:3422
81.56.52.35 0:0:0:0:0:ffff:5138:3423
81.56.52.36 0:0:0:0:0:ffff:5138:3424
81.56.52.37 0:0:0:0:0:ffff:5138:3425
81.56.52.38 0:0:0:0:0:ffff:5138:3426
81.56.52.39 0:0:0:0:0:ffff:5138:3427
81.56.52.40 0:0:0:0:0:ffff:5138:3428
81.56.52.41 0:0:0:0:0:ffff:5138:3429
81.56.52.42 0:0:0:0:0:ffff:5138:342a
81.56.52.43 0:0:0:0:0:ffff:5138:342b
81.56.52.44 0:0:0:0:0:ffff:5138:342c
81.56.52.45 0:0:0:0:0:ffff:5138:342d
81.56.52.46 0:0:0:0:0:ffff:5138:342e
81.56.52.47 0:0:0:0:0:ffff:5138:342f
81.56.52.48 0:0:0:0:0:ffff:5138:3430
81.56.52.49 0:0:0:0:0:ffff:5138:3431
81.56.52.50 0:0:0:0:0:ffff:5138:3432
81.56.52.51 0:0:0:0:0:ffff:5138:3433
81.56.52.52 0:0:0:0:0:ffff:5138:3434
81.56.52.53 0:0:0:0:0:ffff:5138:3435
81.56.52.54 0:0:0:0:0:ffff:5138:3436
81.56.52.55 0:0:0:0:0:ffff:5138:3437
81.56.52.56 0:0:0:0:0:ffff:5138:3438
81.56.52.57 0:0:0:0:0:ffff:5138:3439
81.56.52.58 0:0:0:0:0:ffff:5138:343a
81.56.52.59 0:0:0:0:0:ffff:5138:343b
81.56.52.60 0:0:0:0:0:ffff:5138:343c


81.56.52.61 0:0:0:0:0:ffff:5138:343d
81.56.52.62 0:0:0:0:0:ffff:5138:343e
81.56.52.63 0:0:0:0:0:ffff:5138:343f
81.56.52.64 0:0:0:0:0:ffff:5138:3440
81.56.52.65 0:0:0:0:0:ffff:5138:3441
81.56.52.66 0:0:0:0:0:ffff:5138:3442
81.56.52.67 0:0:0:0:0:ffff:5138:3443
81.56.52.68 0:0:0:0:0:ffff:5138:3444
81.56.52.69 0:0:0:0:0:ffff:5138:3445
81.56.52.70 0:0:0:0:0:ffff:5138:3446
81.56.52.71 0:0:0:0:0:ffff:5138:3447
81.56.52.72 0:0:0:0:0:ffff:5138:3448
81.56.52.73 0:0:0:0:0:ffff:5138:3449
81.56.52.74 0:0:0:0:0:ffff:5138:344a
81.56.52.75 0:0:0:0:0:ffff:5138:344b
81.56.52.76 0:0:0:0:0:ffff:5138:344c
81.56.52.77 0:0:0:0:0:ffff:5138:344d
81.56.52.78 0:0:0:0:0:ffff:5138:344e
81.56.52.79 0:0:0:0:0:ffff:5138:344f
81.56.52.80 0:0:0:0:0:ffff:5138:3450
81.56.52.81 0:0:0:0:0:ffff:5138:3451
81.56.52.82 0:0:0:0:0:ffff:5138:3452
81.56.52.83 0:0:0:0:0:ffff:5138:3453
81.56.52.84 0:0:0:0:0:ffff:5138:3454
81.56.52.85 0:0:0:0:0:ffff:5138:3455
81.56.52.86 0:0:0:0:0:ffff:5138:3456
81.56.52.87 0:0:0:0:0:ffff:5138:3457
81.56.52.88 0:0:0:0:0:ffff:5138:3458
81.56.52.89 0:0:0:0:0:ffff:5138:3459
81.56.52.90 0:0:0:0:0:ffff:5138:345a
81.56.52.91 0:0:0:0:0:ffff:5138:345b
81.56.52.92 0:0:0:0:0:ffff:5138:345c
81.56.52.93 0:0:0:0:0:ffff:5138:345d
81.56.52.94 0:0:0:0:0:ffff:5138:345e
81.56.52.95 0:0:0:0:0:ffff:5138:345f
81.56.52.96 0:0:0:0:0:ffff:5138:3460
81.56.52.97 0:0:0:0:0:ffff:5138:3461
81.56.52.98 0:0:0:0:0:ffff:5138:3462
81.56.52.99 0:0:0:0:0:ffff:5138:3463
81.56.52.100 0:0:0:0:0:ffff:5138:3464
81.56.52.101 0:0:0:0:0:ffff:5138:3465
81.56.52.102 0:0:0:0:0:ffff:5138:3466
81.56.52.103 0:0:0:0:0:ffff:5138:3467
81.56.52.104 0:0:0:0:0:ffff:5138:3468
81.56.52.105 0:0:0:0:0:ffff:5138:3469
81.56.52.106 0:0:0:0:0:ffff:5138:346a
81.56.52.107 0:0:0:0:0:ffff:5138:346b
81.56.52.108 0:0:0:0:0:ffff:5138:346c
81.56.52.109 0:0:0:0:0:ffff:5138:346d
81.56.52.110 0:0:0:0:0:ffff:5138:346e
81.56.52.111 0:0:0:0:0:ffff:5138:346f
81.56.52.112 0:0:0:0:0:ffff:5138:3470
81.56.52.113 0:0:0:0:0:ffff:5138:3471
81.56.52.114 0:0:0:0:0:ffff:5138:3472
81.56.52.115 0:0:0:0:0:ffff:5138:3473
81.56.52.116 0:0:0:0:0:ffff:5138:3474
81.56.52.117 0:0:0:0:0:ffff:5138:3475
81.56.52.118 0:0:0:0:0:ffff:5138:3476
81.56.52.119 0:0:0:0:0:ffff:5138:3477
81.56.52.120 0:0:0:0:0:ffff:5138:3478


81.56.52.121 0:0:0:0:0:ffff:5138:3479
81.56.52.122 0:0:0:0:0:ffff:5138:347a
81.56.52.123 0:0:0:0:0:ffff:5138:347b
81.56.52.124 0:0:0:0:0:ffff:5138:347c
81.56.52.125 0:0:0:0:0:ffff:5138:347d
81.56.52.126 0:0:0:0:0:ffff:5138:347e
81.56.52.127 0:0:0:0:0:ffff:5138:347f
81.56.52.128 0:0:0:0:0:ffff:5138:3480
81.56.52.129 0:0:0:0:0:ffff:5138:3481
81.56.52.130 0:0:0:0:0:ffff:5138:3482
81.56.52.131 0:0:0:0:0:ffff:5138:3483
81.56.52.132 0:0:0:0:0:ffff:5138:3484
81.56.52.133 0:0:0:0:0:ffff:5138:3485
81.56.52.134 0:0:0:0:0:ffff:5138:3486
81.56.52.135 0:0:0:0:0:ffff:5138:3487
81.56.52.136 0:0:0:0:0:ffff:5138:3488
81.56.52.137 0:0:0:0:0:ffff:5138:3489
81.56.52.138 0:0:0:0:0:ffff:5138:348a
81.56.52.139 0:0:0:0:0:ffff:5138:348b
81.56.52.140 0:0:0:0:0:ffff:5138:348c
81.56.52.141 0:0:0:0:0:ffff:5138:348d
81.56.52.142 0:0:0:0:0:ffff:5138:348e
81.56.52.143 0:0:0:0:0:ffff:5138:348f
81.56.52.144 0:0:0:0:0:ffff:5138:3490
81.56.52.145 0:0:0:0:0:ffff:5138:3491
81.56.52.146 0:0:0:0:0:ffff:5138:3492
81.56.52.147 0:0:0:0:0:ffff:5138:3493
81.56.52.148 0:0:0:0:0:ffff:5138:3494
81.56.52.149 0:0:0:0:0:ffff:5138:3495
81.56.52.150 0:0:0:0:0:ffff:5138:3496
81.56.52.151 0:0:0:0:0:ffff:5138:3497
81.56.52.152 0:0:0:0:0:ffff:5138:3498
81.56.52.153 0:0:0:0:0:ffff:5138:3499
81.56.52.154 0:0:0:0:0:ffff:5138:349a
81.56.52.155 0:0:0:0:0:ffff:5138:349b
81.56.52.156 0:0:0:0:0:ffff:5138:349c
81.56.52.157 0:0:0:0:0:ffff:5138:349d
81.56.52.158 0:0:0:0:0:ffff:5138:349e
81.56.52.159 0:0:0:0:0:ffff:5138:349f
81.56.52.160 0:0:0:0:0:ffff:5138:34a0
81.56.52.161 0:0:0:0:0:ffff:5138:34a1
81.56.52.162 0:0:0:0:0:ffff:5138:34a2
81.56.52.163 0:0:0:0:0:ffff:5138:34a3
81.56.52.164 0:0:0:0:0:ffff:5138:34a4
81.56.52.165 0:0:0:0:0:ffff:5138:34a5
81.56.52.166 0:0:0:0:0:ffff:5138:34a6
81.56.52.167 0:0:0:0:0:ffff:5138:34a7
81.56.52.168 0:0:0:0:0:ffff:5138:34a8
81.56.52.169 0:0:0:0:0:ffff:5138:34a9
81.56.52.170 0:0:0:0:0:ffff:5138:34aa
81.56.52.171 0:0:0:0:0:ffff:5138:34ab
81.56.52.172 0:0:0:0:0:ffff:5138:34ac
81.56.52.173 0:0:0:0:0:ffff:5138:34ad
81.56.52.174 0:0:0:0:0:ffff:5138:34ae
81.56.52.175 0:0:0:0:0:ffff:5138:34af
81.56.52.176 0:0:0:0:0:ffff:5138:34b0
81.56.52.177 0:0:0:0:0:ffff:5138:34b1
81.56.52.178 0:0:0:0:0:ffff:5138:34b2
81.56.52.179 0:0:0:0:0:ffff:5138:34b3
81.56.52.180 0:0:0:0:0:ffff:5138:34b4


81.56.52.181 0:0:0:0:0:ffff:5138:34b5
81.56.52.182 0:0:0:0:0:ffff:5138:34b6
81.56.52.183 0:0:0:0:0:ffff:5138:34b7
81.56.52.184 0:0:0:0:0:ffff:5138:34b8
81.56.52.185 0:0:0:0:0:ffff:5138:34b9
81.56.52.186 0:0:0:0:0:ffff:5138:34ba
81.56.52.187 0:0:0:0:0:ffff:5138:34bb
81.56.52.188 0:0:0:0:0:ffff:5138:34bc
81.56.52.189 0:0:0:0:0:ffff:5138:34bd
81.56.52.190 0:0:0:0:0:ffff:5138:34be
81.56.52.191 0:0:0:0:0:ffff:5138:34bf
81.56.52.192 0:0:0:0:0:ffff:5138:34c0
81.56.52.193 0:0:0:0:0:ffff:5138:34c1
81.56.52.194 0:0:0:0:0:ffff:5138:34c2
81.56.52.195 0:0:0:0:0:ffff:5138:34c3
81.56.52.196 0:0:0:0:0:ffff:5138:34c4
81.56.52.197 0:0:0:0:0:ffff:5138:34c5
81.56.52.198 0:0:0:0:0:ffff:5138:34c6
81.56.52.199 0:0:0:0:0:ffff:5138:34c7
81.56.52.200 0:0:0:0:0:ffff:5138:34c8
81.56.52.201 0:0:0:0:0:ffff:5138:34c9
81.56.52.202 0:0:0:0:0:ffff:5138:34ca
81.56.52.203 0:0:0:0:0:ffff:5138:34cb
81.56.52.204 0:0:0:0:0:ffff:5138:34cc
81.56.52.205 0:0:0:0:0:ffff:5138:34cd
81.56.52.206 0:0:0:0:0:ffff:5138:34ce
81.56.52.207 0:0:0:0:0:ffff:5138:34cf
81.56.52.208 0:0:0:0:0:ffff:5138:34d0
81.56.52.209 0:0:0:0:0:ffff:5138:34d1
81.56.52.210 0:0:0:0:0:ffff:5138:34d2
81.56.52.211 0:0:0:0:0:ffff:5138:34d3
81.56.52.212 0:0:0:0:0:ffff:5138:34d4
81.56.52.213 0:0:0:0:0:ffff:5138:34d5
81.56.52.214 0:0:0:0:0:ffff:5138:34d6
81.56.52.215 0:0:0:0:0:ffff:5138:34d7
81.56.52.216 0:0:0:0:0:ffff:5138:34d8
81.56.52.217 0:0:0:0:0:ffff:5138:34d9
81.56.52.218 0:0:0:0:0:ffff:5138:34da
81.56.52.219 0:0:0:0:0:ffff:5138:34db
81.56.52.220 0:0:0:0:0:ffff:5138:34dc
81.56.52.221 0:0:0:0:0:ffff:5138:34dd
81.56.52.222 0:0:0:0:0:ffff:5138:34de
81.56.52.223 0:0:0:0:0:ffff:5138:34df
81.56.52.224 0:0:0:0:0:ffff:5138:34e0
81.56.52.225 0:0:0:0:0:ffff:5138:34e1
81.56.52.226 0:0:0:0:0:ffff:5138:34e2
81.56.52.227 0:0:0:0:0:ffff:5138:34e3
81.56.52.228 0:0:0:0:0:ffff:5138:34e4
81.56.52.229 0:0:0:0:0:ffff:5138:34e5
81.56.52.230 0:0:0:0:0:ffff:5138:34e6
81.56.52.231 0:0:0:0:0:ffff:5138:34e7
81.56.52.232 0:0:0:0:0:ffff:5138:34e8
81.56.52.233 0:0:0:0:0:ffff:5138:34e9
81.56.52.234 0:0:0:0:0:ffff:5138:34ea
81.56.52.235 0:0:0:0:0:ffff:5138:34eb
81.56.52.236 0:0:0:0:0:ffff:5138:34ec
81.56.52.237 0:0:0:0:0:ffff:5138:34ed
81.56.52.238 0:0:0:0:0:ffff:5138:34ee
81.56.52.239 0:0:0:0:0:ffff:5138:34ef
81.56.52.240 0:0:0:0:0:ffff:5138:34f0
81.56.52.241 0:0:0:0:0:ffff:5138:34f1
81.56.52.242 0:0:0:0:0:ffff:5138:34f2
81.56.52.243 0:0:0:0:0:ffff:5138:34f3
81.56.52.244 0:0:0:0:0:ffff:5138:34f4
81.56.52.245 0:0:0:0:0:ffff:5138:34f5
81.56.52.246 0:0:0:0:0:ffff:5138:34f6
81.56.52.247 0:0:0:0:0:ffff:5138:34f7
81.56.52.248 0:0:0:0:0:ffff:5138:34f8
81.56.52.249 0:0:0:0:0:ffff:5138:34f9
81.56.52.250 0:0:0:0:0:ffff:5138:34fa
81.56.52.251 0:0:0:0:0:ffff:5138:34fb
81.56.52.252 0:0:0:0:0:ffff:5138:34fc
81.56.52.253 0:0:0:0:0:ffff:5138:34fd
81.56.52.254 0:0:0:0:0:ffff:5138:34fe
81.56.52.255 0:0:0:0:0:ffff:5138:34ff


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.