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
123.221.85.1 0:0:0:0:0:ffff:7bdd:5501
123.221.85.2 0:0:0:0:0:ffff:7bdd:5502
123.221.85.3 0:0:0:0:0:ffff:7bdd:5503
123.221.85.4 0:0:0:0:0:ffff:7bdd:5504
123.221.85.5 0:0:0:0:0:ffff:7bdd:5505
123.221.85.6 0:0:0:0:0:ffff:7bdd:5506
123.221.85.7 0:0:0:0:0:ffff:7bdd:5507
123.221.85.8 0:0:0:0:0:ffff:7bdd:5508
123.221.85.9 0:0:0:0:0:ffff:7bdd:5509
123.221.85.10 0:0:0:0:0:ffff:7bdd:550a
123.221.85.11 0:0:0:0:0:ffff:7bdd:550b
123.221.85.12 0:0:0:0:0:ffff:7bdd:550c
123.221.85.13 0:0:0:0:0:ffff:7bdd:550d
123.221.85.14 0:0:0:0:0:ffff:7bdd:550e
123.221.85.15 0:0:0:0:0:ffff:7bdd:550f
123.221.85.16 0:0:0:0:0:ffff:7bdd:5510
123.221.85.17 0:0:0:0:0:ffff:7bdd:5511
123.221.85.18 0:0:0:0:0:ffff:7bdd:5512
123.221.85.19 0:0:0:0:0:ffff:7bdd:5513
123.221.85.20 0:0:0:0:0:ffff:7bdd:5514
123.221.85.21 0:0:0:0:0:ffff:7bdd:5515
123.221.85.22 0:0:0:0:0:ffff:7bdd:5516
123.221.85.23 0:0:0:0:0:ffff:7bdd:5517
123.221.85.24 0:0:0:0:0:ffff:7bdd:5518
123.221.85.25 0:0:0:0:0:ffff:7bdd:5519
123.221.85.26 0:0:0:0:0:ffff:7bdd:551a
123.221.85.27 0:0:0:0:0:ffff:7bdd:551b
123.221.85.28 0:0:0:0:0:ffff:7bdd:551c
123.221.85.29 0:0:0:0:0:ffff:7bdd:551d
123.221.85.30 0:0:0:0:0:ffff:7bdd:551e
123.221.85.31 0:0:0:0:0:ffff:7bdd:551f
123.221.85.32 0:0:0:0:0:ffff:7bdd:5520
123.221.85.33 0:0:0:0:0:ffff:7bdd:5521
123.221.85.34 0:0:0:0:0:ffff:7bdd:5522
123.221.85.35 0:0:0:0:0:ffff:7bdd:5523
123.221.85.36 0:0:0:0:0:ffff:7bdd:5524
123.221.85.37 0:0:0:0:0:ffff:7bdd:5525
123.221.85.38 0:0:0:0:0:ffff:7bdd:5526
123.221.85.39 0:0:0:0:0:ffff:7bdd:5527
123.221.85.40 0:0:0:0:0:ffff:7bdd:5528
123.221.85.41 0:0:0:0:0:ffff:7bdd:5529
123.221.85.42 0:0:0:0:0:ffff:7bdd:552a
123.221.85.43 0:0:0:0:0:ffff:7bdd:552b
123.221.85.44 0:0:0:0:0:ffff:7bdd:552c
123.221.85.45 0:0:0:0:0:ffff:7bdd:552d
123.221.85.46 0:0:0:0:0:ffff:7bdd:552e
123.221.85.47 0:0:0:0:0:ffff:7bdd:552f
123.221.85.48 0:0:0:0:0:ffff:7bdd:5530
123.221.85.49 0:0:0:0:0:ffff:7bdd:5531
123.221.85.50 0:0:0:0:0:ffff:7bdd:5532
123.221.85.51 0:0:0:0:0:ffff:7bdd:5533
123.221.85.52 0:0:0:0:0:ffff:7bdd:5534
123.221.85.53 0:0:0:0:0:ffff:7bdd:5535
123.221.85.54 0:0:0:0:0:ffff:7bdd:5536
123.221.85.55 0:0:0:0:0:ffff:7bdd:5537
123.221.85.56 0:0:0:0:0:ffff:7bdd:5538
123.221.85.57 0:0:0:0:0:ffff:7bdd:5539
123.221.85.58 0:0:0:0:0:ffff:7bdd:553a
123.221.85.59 0:0:0:0:0:ffff:7bdd:553b
123.221.85.60 0:0:0:0:0:ffff:7bdd:553c


123.221.85.61 0:0:0:0:0:ffff:7bdd:553d
123.221.85.62 0:0:0:0:0:ffff:7bdd:553e
123.221.85.63 0:0:0:0:0:ffff:7bdd:553f
123.221.85.64 0:0:0:0:0:ffff:7bdd:5540
123.221.85.65 0:0:0:0:0:ffff:7bdd:5541
123.221.85.66 0:0:0:0:0:ffff:7bdd:5542
123.221.85.67 0:0:0:0:0:ffff:7bdd:5543
123.221.85.68 0:0:0:0:0:ffff:7bdd:5544
123.221.85.69 0:0:0:0:0:ffff:7bdd:5545
123.221.85.70 0:0:0:0:0:ffff:7bdd:5546
123.221.85.71 0:0:0:0:0:ffff:7bdd:5547
123.221.85.72 0:0:0:0:0:ffff:7bdd:5548
123.221.85.73 0:0:0:0:0:ffff:7bdd:5549
123.221.85.74 0:0:0:0:0:ffff:7bdd:554a
123.221.85.75 0:0:0:0:0:ffff:7bdd:554b
123.221.85.76 0:0:0:0:0:ffff:7bdd:554c
123.221.85.77 0:0:0:0:0:ffff:7bdd:554d
123.221.85.78 0:0:0:0:0:ffff:7bdd:554e
123.221.85.79 0:0:0:0:0:ffff:7bdd:554f
123.221.85.80 0:0:0:0:0:ffff:7bdd:5550
123.221.85.81 0:0:0:0:0:ffff:7bdd:5551
123.221.85.82 0:0:0:0:0:ffff:7bdd:5552
123.221.85.83 0:0:0:0:0:ffff:7bdd:5553
123.221.85.84 0:0:0:0:0:ffff:7bdd:5554
123.221.85.85 0:0:0:0:0:ffff:7bdd:5555
123.221.85.86 0:0:0:0:0:ffff:7bdd:5556
123.221.85.87 0:0:0:0:0:ffff:7bdd:5557
123.221.85.88 0:0:0:0:0:ffff:7bdd:5558
123.221.85.89 0:0:0:0:0:ffff:7bdd:5559
123.221.85.90 0:0:0:0:0:ffff:7bdd:555a
123.221.85.91 0:0:0:0:0:ffff:7bdd:555b
123.221.85.92 0:0:0:0:0:ffff:7bdd:555c
123.221.85.93 0:0:0:0:0:ffff:7bdd:555d
123.221.85.94 0:0:0:0:0:ffff:7bdd:555e
123.221.85.95 0:0:0:0:0:ffff:7bdd:555f
123.221.85.96 0:0:0:0:0:ffff:7bdd:5560
123.221.85.97 0:0:0:0:0:ffff:7bdd:5561
123.221.85.98 0:0:0:0:0:ffff:7bdd:5562
123.221.85.99 0:0:0:0:0:ffff:7bdd:5563
123.221.85.100 0:0:0:0:0:ffff:7bdd:5564
123.221.85.101 0:0:0:0:0:ffff:7bdd:5565
123.221.85.102 0:0:0:0:0:ffff:7bdd:5566
123.221.85.103 0:0:0:0:0:ffff:7bdd:5567
123.221.85.104 0:0:0:0:0:ffff:7bdd:5568
123.221.85.105 0:0:0:0:0:ffff:7bdd:5569
123.221.85.106 0:0:0:0:0:ffff:7bdd:556a
123.221.85.107 0:0:0:0:0:ffff:7bdd:556b
123.221.85.108 0:0:0:0:0:ffff:7bdd:556c
123.221.85.109 0:0:0:0:0:ffff:7bdd:556d
123.221.85.110 0:0:0:0:0:ffff:7bdd:556e
123.221.85.111 0:0:0:0:0:ffff:7bdd:556f
123.221.85.112 0:0:0:0:0:ffff:7bdd:5570
123.221.85.113 0:0:0:0:0:ffff:7bdd:5571
123.221.85.114 0:0:0:0:0:ffff:7bdd:5572
123.221.85.115 0:0:0:0:0:ffff:7bdd:5573
123.221.85.116 0:0:0:0:0:ffff:7bdd:5574
123.221.85.117 0:0:0:0:0:ffff:7bdd:5575
123.221.85.118 0:0:0:0:0:ffff:7bdd:5576
123.221.85.119 0:0:0:0:0:ffff:7bdd:5577
123.221.85.120 0:0:0:0:0:ffff:7bdd:5578


123.221.85.121 0:0:0:0:0:ffff:7bdd:5579
123.221.85.122 0:0:0:0:0:ffff:7bdd:557a
123.221.85.123 0:0:0:0:0:ffff:7bdd:557b
123.221.85.124 0:0:0:0:0:ffff:7bdd:557c
123.221.85.125 0:0:0:0:0:ffff:7bdd:557d
123.221.85.126 0:0:0:0:0:ffff:7bdd:557e
123.221.85.127 0:0:0:0:0:ffff:7bdd:557f
123.221.85.128 0:0:0:0:0:ffff:7bdd:5580
123.221.85.129 0:0:0:0:0:ffff:7bdd:5581
123.221.85.130 0:0:0:0:0:ffff:7bdd:5582
123.221.85.131 0:0:0:0:0:ffff:7bdd:5583
123.221.85.132 0:0:0:0:0:ffff:7bdd:5584
123.221.85.133 0:0:0:0:0:ffff:7bdd:5585
123.221.85.134 0:0:0:0:0:ffff:7bdd:5586
123.221.85.135 0:0:0:0:0:ffff:7bdd:5587
123.221.85.136 0:0:0:0:0:ffff:7bdd:5588
123.221.85.137 0:0:0:0:0:ffff:7bdd:5589
123.221.85.138 0:0:0:0:0:ffff:7bdd:558a
123.221.85.139 0:0:0:0:0:ffff:7bdd:558b
123.221.85.140 0:0:0:0:0:ffff:7bdd:558c
123.221.85.141 0:0:0:0:0:ffff:7bdd:558d
123.221.85.142 0:0:0:0:0:ffff:7bdd:558e
123.221.85.143 0:0:0:0:0:ffff:7bdd:558f
123.221.85.144 0:0:0:0:0:ffff:7bdd:5590
123.221.85.145 0:0:0:0:0:ffff:7bdd:5591
123.221.85.146 0:0:0:0:0:ffff:7bdd:5592
123.221.85.147 0:0:0:0:0:ffff:7bdd:5593
123.221.85.148 0:0:0:0:0:ffff:7bdd:5594
123.221.85.149 0:0:0:0:0:ffff:7bdd:5595
123.221.85.150 0:0:0:0:0:ffff:7bdd:5596
123.221.85.151 0:0:0:0:0:ffff:7bdd:5597
123.221.85.152 0:0:0:0:0:ffff:7bdd:5598
123.221.85.153 0:0:0:0:0:ffff:7bdd:5599
123.221.85.154 0:0:0:0:0:ffff:7bdd:559a
123.221.85.155 0:0:0:0:0:ffff:7bdd:559b
123.221.85.156 0:0:0:0:0:ffff:7bdd:559c
123.221.85.157 0:0:0:0:0:ffff:7bdd:559d
123.221.85.158 0:0:0:0:0:ffff:7bdd:559e
123.221.85.159 0:0:0:0:0:ffff:7bdd:559f
123.221.85.160 0:0:0:0:0:ffff:7bdd:55a0
123.221.85.161 0:0:0:0:0:ffff:7bdd:55a1
123.221.85.162 0:0:0:0:0:ffff:7bdd:55a2
123.221.85.163 0:0:0:0:0:ffff:7bdd:55a3
123.221.85.164 0:0:0:0:0:ffff:7bdd:55a4
123.221.85.165 0:0:0:0:0:ffff:7bdd:55a5
123.221.85.166 0:0:0:0:0:ffff:7bdd:55a6
123.221.85.167 0:0:0:0:0:ffff:7bdd:55a7
123.221.85.168 0:0:0:0:0:ffff:7bdd:55a8
123.221.85.169 0:0:0:0:0:ffff:7bdd:55a9
123.221.85.170 0:0:0:0:0:ffff:7bdd:55aa
123.221.85.171 0:0:0:0:0:ffff:7bdd:55ab
123.221.85.172 0:0:0:0:0:ffff:7bdd:55ac
123.221.85.173 0:0:0:0:0:ffff:7bdd:55ad
123.221.85.174 0:0:0:0:0:ffff:7bdd:55ae
123.221.85.175 0:0:0:0:0:ffff:7bdd:55af
123.221.85.176 0:0:0:0:0:ffff:7bdd:55b0
123.221.85.177 0:0:0:0:0:ffff:7bdd:55b1
123.221.85.178 0:0:0:0:0:ffff:7bdd:55b2
123.221.85.179 0:0:0:0:0:ffff:7bdd:55b3
123.221.85.180 0:0:0:0:0:ffff:7bdd:55b4


123.221.85.181 0:0:0:0:0:ffff:7bdd:55b5
123.221.85.182 0:0:0:0:0:ffff:7bdd:55b6
123.221.85.183 0:0:0:0:0:ffff:7bdd:55b7
123.221.85.184 0:0:0:0:0:ffff:7bdd:55b8
123.221.85.185 0:0:0:0:0:ffff:7bdd:55b9
123.221.85.186 0:0:0:0:0:ffff:7bdd:55ba
123.221.85.187 0:0:0:0:0:ffff:7bdd:55bb
123.221.85.188 0:0:0:0:0:ffff:7bdd:55bc
123.221.85.189 0:0:0:0:0:ffff:7bdd:55bd
123.221.85.190 0:0:0:0:0:ffff:7bdd:55be
123.221.85.191 0:0:0:0:0:ffff:7bdd:55bf
123.221.85.192 0:0:0:0:0:ffff:7bdd:55c0
123.221.85.193 0:0:0:0:0:ffff:7bdd:55c1
123.221.85.194 0:0:0:0:0:ffff:7bdd:55c2
123.221.85.195 0:0:0:0:0:ffff:7bdd:55c3
123.221.85.196 0:0:0:0:0:ffff:7bdd:55c4
123.221.85.197 0:0:0:0:0:ffff:7bdd:55c5
123.221.85.198 0:0:0:0:0:ffff:7bdd:55c6
123.221.85.199 0:0:0:0:0:ffff:7bdd:55c7
123.221.85.200 0:0:0:0:0:ffff:7bdd:55c8
123.221.85.201 0:0:0:0:0:ffff:7bdd:55c9
123.221.85.202 0:0:0:0:0:ffff:7bdd:55ca
123.221.85.203 0:0:0:0:0:ffff:7bdd:55cb
123.221.85.204 0:0:0:0:0:ffff:7bdd:55cc
123.221.85.205 0:0:0:0:0:ffff:7bdd:55cd
123.221.85.206 0:0:0:0:0:ffff:7bdd:55ce
123.221.85.207 0:0:0:0:0:ffff:7bdd:55cf
123.221.85.208 0:0:0:0:0:ffff:7bdd:55d0
123.221.85.209 0:0:0:0:0:ffff:7bdd:55d1
123.221.85.210 0:0:0:0:0:ffff:7bdd:55d2
123.221.85.211 0:0:0:0:0:ffff:7bdd:55d3
123.221.85.212 0:0:0:0:0:ffff:7bdd:55d4
123.221.85.213 0:0:0:0:0:ffff:7bdd:55d5
123.221.85.214 0:0:0:0:0:ffff:7bdd:55d6
123.221.85.215 0:0:0:0:0:ffff:7bdd:55d7
123.221.85.216 0:0:0:0:0:ffff:7bdd:55d8
123.221.85.217 0:0:0:0:0:ffff:7bdd:55d9
123.221.85.218 0:0:0:0:0:ffff:7bdd:55da
123.221.85.219 0:0:0:0:0:ffff:7bdd:55db
123.221.85.220 0:0:0:0:0:ffff:7bdd:55dc
123.221.85.221 0:0:0:0:0:ffff:7bdd:55dd
123.221.85.222 0:0:0:0:0:ffff:7bdd:55de
123.221.85.223 0:0:0:0:0:ffff:7bdd:55df
123.221.85.224 0:0:0:0:0:ffff:7bdd:55e0
123.221.85.225 0:0:0:0:0:ffff:7bdd:55e1
123.221.85.226 0:0:0:0:0:ffff:7bdd:55e2
123.221.85.227 0:0:0:0:0:ffff:7bdd:55e3
123.221.85.228 0:0:0:0:0:ffff:7bdd:55e4
123.221.85.229 0:0:0:0:0:ffff:7bdd:55e5
123.221.85.230 0:0:0:0:0:ffff:7bdd:55e6
123.221.85.231 0:0:0:0:0:ffff:7bdd:55e7
123.221.85.232 0:0:0:0:0:ffff:7bdd:55e8
123.221.85.233 0:0:0:0:0:ffff:7bdd:55e9
123.221.85.234 0:0:0:0:0:ffff:7bdd:55ea
123.221.85.235 0:0:0:0:0:ffff:7bdd:55eb
123.221.85.236 0:0:0:0:0:ffff:7bdd:55ec
123.221.85.237 0:0:0:0:0:ffff:7bdd:55ed
123.221.85.238 0:0:0:0:0:ffff:7bdd:55ee
123.221.85.239 0:0:0:0:0:ffff:7bdd:55ef
123.221.85.240 0:0:0:0:0:ffff:7bdd:55f0
123.221.85.241 0:0:0:0:0:ffff:7bdd:55f1
123.221.85.242 0:0:0:0:0:ffff:7bdd:55f2
123.221.85.243 0:0:0:0:0:ffff:7bdd:55f3
123.221.85.244 0:0:0:0:0:ffff:7bdd:55f4
123.221.85.245 0:0:0:0:0:ffff:7bdd:55f5
123.221.85.246 0:0:0:0:0:ffff:7bdd:55f6
123.221.85.247 0:0:0:0:0:ffff:7bdd:55f7
123.221.85.248 0:0:0:0:0:ffff:7bdd:55f8
123.221.85.249 0:0:0:0:0:ffff:7bdd:55f9
123.221.85.250 0:0:0:0:0:ffff:7bdd:55fa
123.221.85.251 0:0:0:0:0:ffff:7bdd:55fb
123.221.85.252 0:0:0:0:0:ffff:7bdd:55fc
123.221.85.253 0:0:0:0:0:ffff:7bdd:55fd
123.221.85.254 0:0:0:0:0:ffff:7bdd:55fe
123.221.85.255 0:0:0:0:0:ffff:7bdd:55ff


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.