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
143.243.100.1 0:0:0:0:0:ffff:8ff3:6401
143.243.100.2 0:0:0:0:0:ffff:8ff3:6402
143.243.100.3 0:0:0:0:0:ffff:8ff3:6403
143.243.100.4 0:0:0:0:0:ffff:8ff3:6404
143.243.100.5 0:0:0:0:0:ffff:8ff3:6405
143.243.100.6 0:0:0:0:0:ffff:8ff3:6406
143.243.100.7 0:0:0:0:0:ffff:8ff3:6407
143.243.100.8 0:0:0:0:0:ffff:8ff3:6408
143.243.100.9 0:0:0:0:0:ffff:8ff3:6409
143.243.100.10 0:0:0:0:0:ffff:8ff3:640a
143.243.100.11 0:0:0:0:0:ffff:8ff3:640b
143.243.100.12 0:0:0:0:0:ffff:8ff3:640c
143.243.100.13 0:0:0:0:0:ffff:8ff3:640d
143.243.100.14 0:0:0:0:0:ffff:8ff3:640e
143.243.100.15 0:0:0:0:0:ffff:8ff3:640f
143.243.100.16 0:0:0:0:0:ffff:8ff3:6410
143.243.100.17 0:0:0:0:0:ffff:8ff3:6411
143.243.100.18 0:0:0:0:0:ffff:8ff3:6412
143.243.100.19 0:0:0:0:0:ffff:8ff3:6413
143.243.100.20 0:0:0:0:0:ffff:8ff3:6414
143.243.100.21 0:0:0:0:0:ffff:8ff3:6415
143.243.100.22 0:0:0:0:0:ffff:8ff3:6416
143.243.100.23 0:0:0:0:0:ffff:8ff3:6417
143.243.100.24 0:0:0:0:0:ffff:8ff3:6418
143.243.100.25 0:0:0:0:0:ffff:8ff3:6419
143.243.100.26 0:0:0:0:0:ffff:8ff3:641a
143.243.100.27 0:0:0:0:0:ffff:8ff3:641b
143.243.100.28 0:0:0:0:0:ffff:8ff3:641c
143.243.100.29 0:0:0:0:0:ffff:8ff3:641d
143.243.100.30 0:0:0:0:0:ffff:8ff3:641e
143.243.100.31 0:0:0:0:0:ffff:8ff3:641f
143.243.100.32 0:0:0:0:0:ffff:8ff3:6420
143.243.100.33 0:0:0:0:0:ffff:8ff3:6421
143.243.100.34 0:0:0:0:0:ffff:8ff3:6422
143.243.100.35 0:0:0:0:0:ffff:8ff3:6423
143.243.100.36 0:0:0:0:0:ffff:8ff3:6424
143.243.100.37 0:0:0:0:0:ffff:8ff3:6425
143.243.100.38 0:0:0:0:0:ffff:8ff3:6426
143.243.100.39 0:0:0:0:0:ffff:8ff3:6427
143.243.100.40 0:0:0:0:0:ffff:8ff3:6428
143.243.100.41 0:0:0:0:0:ffff:8ff3:6429
143.243.100.42 0:0:0:0:0:ffff:8ff3:642a
143.243.100.43 0:0:0:0:0:ffff:8ff3:642b
143.243.100.44 0:0:0:0:0:ffff:8ff3:642c
143.243.100.45 0:0:0:0:0:ffff:8ff3:642d
143.243.100.46 0:0:0:0:0:ffff:8ff3:642e
143.243.100.47 0:0:0:0:0:ffff:8ff3:642f
143.243.100.48 0:0:0:0:0:ffff:8ff3:6430
143.243.100.49 0:0:0:0:0:ffff:8ff3:6431
143.243.100.50 0:0:0:0:0:ffff:8ff3:6432
143.243.100.51 0:0:0:0:0:ffff:8ff3:6433
143.243.100.52 0:0:0:0:0:ffff:8ff3:6434
143.243.100.53 0:0:0:0:0:ffff:8ff3:6435
143.243.100.54 0:0:0:0:0:ffff:8ff3:6436
143.243.100.55 0:0:0:0:0:ffff:8ff3:6437
143.243.100.56 0:0:0:0:0:ffff:8ff3:6438
143.243.100.57 0:0:0:0:0:ffff:8ff3:6439
143.243.100.58 0:0:0:0:0:ffff:8ff3:643a
143.243.100.59 0:0:0:0:0:ffff:8ff3:643b
143.243.100.60 0:0:0:0:0:ffff:8ff3:643c


143.243.100.61 0:0:0:0:0:ffff:8ff3:643d
143.243.100.62 0:0:0:0:0:ffff:8ff3:643e
143.243.100.63 0:0:0:0:0:ffff:8ff3:643f
143.243.100.64 0:0:0:0:0:ffff:8ff3:6440
143.243.100.65 0:0:0:0:0:ffff:8ff3:6441
143.243.100.66 0:0:0:0:0:ffff:8ff3:6442
143.243.100.67 0:0:0:0:0:ffff:8ff3:6443
143.243.100.68 0:0:0:0:0:ffff:8ff3:6444
143.243.100.69 0:0:0:0:0:ffff:8ff3:6445
143.243.100.70 0:0:0:0:0:ffff:8ff3:6446
143.243.100.71 0:0:0:0:0:ffff:8ff3:6447
143.243.100.72 0:0:0:0:0:ffff:8ff3:6448
143.243.100.73 0:0:0:0:0:ffff:8ff3:6449
143.243.100.74 0:0:0:0:0:ffff:8ff3:644a
143.243.100.75 0:0:0:0:0:ffff:8ff3:644b
143.243.100.76 0:0:0:0:0:ffff:8ff3:644c
143.243.100.77 0:0:0:0:0:ffff:8ff3:644d
143.243.100.78 0:0:0:0:0:ffff:8ff3:644e
143.243.100.79 0:0:0:0:0:ffff:8ff3:644f
143.243.100.80 0:0:0:0:0:ffff:8ff3:6450
143.243.100.81 0:0:0:0:0:ffff:8ff3:6451
143.243.100.82 0:0:0:0:0:ffff:8ff3:6452
143.243.100.83 0:0:0:0:0:ffff:8ff3:6453
143.243.100.84 0:0:0:0:0:ffff:8ff3:6454
143.243.100.85 0:0:0:0:0:ffff:8ff3:6455
143.243.100.86 0:0:0:0:0:ffff:8ff3:6456
143.243.100.87 0:0:0:0:0:ffff:8ff3:6457
143.243.100.88 0:0:0:0:0:ffff:8ff3:6458
143.243.100.89 0:0:0:0:0:ffff:8ff3:6459
143.243.100.90 0:0:0:0:0:ffff:8ff3:645a
143.243.100.91 0:0:0:0:0:ffff:8ff3:645b
143.243.100.92 0:0:0:0:0:ffff:8ff3:645c
143.243.100.93 0:0:0:0:0:ffff:8ff3:645d
143.243.100.94 0:0:0:0:0:ffff:8ff3:645e
143.243.100.95 0:0:0:0:0:ffff:8ff3:645f
143.243.100.96 0:0:0:0:0:ffff:8ff3:6460
143.243.100.97 0:0:0:0:0:ffff:8ff3:6461
143.243.100.98 0:0:0:0:0:ffff:8ff3:6462
143.243.100.99 0:0:0:0:0:ffff:8ff3:6463
143.243.100.100 0:0:0:0:0:ffff:8ff3:6464
143.243.100.101 0:0:0:0:0:ffff:8ff3:6465
143.243.100.102 0:0:0:0:0:ffff:8ff3:6466
143.243.100.103 0:0:0:0:0:ffff:8ff3:6467
143.243.100.104 0:0:0:0:0:ffff:8ff3:6468
143.243.100.105 0:0:0:0:0:ffff:8ff3:6469
143.243.100.106 0:0:0:0:0:ffff:8ff3:646a
143.243.100.107 0:0:0:0:0:ffff:8ff3:646b
143.243.100.108 0:0:0:0:0:ffff:8ff3:646c
143.243.100.109 0:0:0:0:0:ffff:8ff3:646d
143.243.100.110 0:0:0:0:0:ffff:8ff3:646e
143.243.100.111 0:0:0:0:0:ffff:8ff3:646f
143.243.100.112 0:0:0:0:0:ffff:8ff3:6470
143.243.100.113 0:0:0:0:0:ffff:8ff3:6471
143.243.100.114 0:0:0:0:0:ffff:8ff3:6472
143.243.100.115 0:0:0:0:0:ffff:8ff3:6473
143.243.100.116 0:0:0:0:0:ffff:8ff3:6474
143.243.100.117 0:0:0:0:0:ffff:8ff3:6475
143.243.100.118 0:0:0:0:0:ffff:8ff3:6476
143.243.100.119 0:0:0:0:0:ffff:8ff3:6477
143.243.100.120 0:0:0:0:0:ffff:8ff3:6478


143.243.100.121 0:0:0:0:0:ffff:8ff3:6479
143.243.100.122 0:0:0:0:0:ffff:8ff3:647a
143.243.100.123 0:0:0:0:0:ffff:8ff3:647b
143.243.100.124 0:0:0:0:0:ffff:8ff3:647c
143.243.100.125 0:0:0:0:0:ffff:8ff3:647d
143.243.100.126 0:0:0:0:0:ffff:8ff3:647e
143.243.100.127 0:0:0:0:0:ffff:8ff3:647f
143.243.100.128 0:0:0:0:0:ffff:8ff3:6480
143.243.100.129 0:0:0:0:0:ffff:8ff3:6481
143.243.100.130 0:0:0:0:0:ffff:8ff3:6482
143.243.100.131 0:0:0:0:0:ffff:8ff3:6483
143.243.100.132 0:0:0:0:0:ffff:8ff3:6484
143.243.100.133 0:0:0:0:0:ffff:8ff3:6485
143.243.100.134 0:0:0:0:0:ffff:8ff3:6486
143.243.100.135 0:0:0:0:0:ffff:8ff3:6487
143.243.100.136 0:0:0:0:0:ffff:8ff3:6488
143.243.100.137 0:0:0:0:0:ffff:8ff3:6489
143.243.100.138 0:0:0:0:0:ffff:8ff3:648a
143.243.100.139 0:0:0:0:0:ffff:8ff3:648b
143.243.100.140 0:0:0:0:0:ffff:8ff3:648c
143.243.100.141 0:0:0:0:0:ffff:8ff3:648d
143.243.100.142 0:0:0:0:0:ffff:8ff3:648e
143.243.100.143 0:0:0:0:0:ffff:8ff3:648f
143.243.100.144 0:0:0:0:0:ffff:8ff3:6490
143.243.100.145 0:0:0:0:0:ffff:8ff3:6491
143.243.100.146 0:0:0:0:0:ffff:8ff3:6492
143.243.100.147 0:0:0:0:0:ffff:8ff3:6493
143.243.100.148 0:0:0:0:0:ffff:8ff3:6494
143.243.100.149 0:0:0:0:0:ffff:8ff3:6495
143.243.100.150 0:0:0:0:0:ffff:8ff3:6496
143.243.100.151 0:0:0:0:0:ffff:8ff3:6497
143.243.100.152 0:0:0:0:0:ffff:8ff3:6498
143.243.100.153 0:0:0:0:0:ffff:8ff3:6499
143.243.100.154 0:0:0:0:0:ffff:8ff3:649a
143.243.100.155 0:0:0:0:0:ffff:8ff3:649b
143.243.100.156 0:0:0:0:0:ffff:8ff3:649c
143.243.100.157 0:0:0:0:0:ffff:8ff3:649d
143.243.100.158 0:0:0:0:0:ffff:8ff3:649e
143.243.100.159 0:0:0:0:0:ffff:8ff3:649f
143.243.100.160 0:0:0:0:0:ffff:8ff3:64a0
143.243.100.161 0:0:0:0:0:ffff:8ff3:64a1
143.243.100.162 0:0:0:0:0:ffff:8ff3:64a2
143.243.100.163 0:0:0:0:0:ffff:8ff3:64a3
143.243.100.164 0:0:0:0:0:ffff:8ff3:64a4
143.243.100.165 0:0:0:0:0:ffff:8ff3:64a5
143.243.100.166 0:0:0:0:0:ffff:8ff3:64a6
143.243.100.167 0:0:0:0:0:ffff:8ff3:64a7
143.243.100.168 0:0:0:0:0:ffff:8ff3:64a8
143.243.100.169 0:0:0:0:0:ffff:8ff3:64a9
143.243.100.170 0:0:0:0:0:ffff:8ff3:64aa
143.243.100.171 0:0:0:0:0:ffff:8ff3:64ab
143.243.100.172 0:0:0:0:0:ffff:8ff3:64ac
143.243.100.173 0:0:0:0:0:ffff:8ff3:64ad
143.243.100.174 0:0:0:0:0:ffff:8ff3:64ae
143.243.100.175 0:0:0:0:0:ffff:8ff3:64af
143.243.100.176 0:0:0:0:0:ffff:8ff3:64b0
143.243.100.177 0:0:0:0:0:ffff:8ff3:64b1
143.243.100.178 0:0:0:0:0:ffff:8ff3:64b2
143.243.100.179 0:0:0:0:0:ffff:8ff3:64b3
143.243.100.180 0:0:0:0:0:ffff:8ff3:64b4


143.243.100.181 0:0:0:0:0:ffff:8ff3:64b5
143.243.100.182 0:0:0:0:0:ffff:8ff3:64b6
143.243.100.183 0:0:0:0:0:ffff:8ff3:64b7
143.243.100.184 0:0:0:0:0:ffff:8ff3:64b8
143.243.100.185 0:0:0:0:0:ffff:8ff3:64b9
143.243.100.186 0:0:0:0:0:ffff:8ff3:64ba
143.243.100.187 0:0:0:0:0:ffff:8ff3:64bb
143.243.100.188 0:0:0:0:0:ffff:8ff3:64bc
143.243.100.189 0:0:0:0:0:ffff:8ff3:64bd
143.243.100.190 0:0:0:0:0:ffff:8ff3:64be
143.243.100.191 0:0:0:0:0:ffff:8ff3:64bf
143.243.100.192 0:0:0:0:0:ffff:8ff3:64c0
143.243.100.193 0:0:0:0:0:ffff:8ff3:64c1
143.243.100.194 0:0:0:0:0:ffff:8ff3:64c2
143.243.100.195 0:0:0:0:0:ffff:8ff3:64c3
143.243.100.196 0:0:0:0:0:ffff:8ff3:64c4
143.243.100.197 0:0:0:0:0:ffff:8ff3:64c5
143.243.100.198 0:0:0:0:0:ffff:8ff3:64c6
143.243.100.199 0:0:0:0:0:ffff:8ff3:64c7
143.243.100.200 0:0:0:0:0:ffff:8ff3:64c8
143.243.100.201 0:0:0:0:0:ffff:8ff3:64c9
143.243.100.202 0:0:0:0:0:ffff:8ff3:64ca
143.243.100.203 0:0:0:0:0:ffff:8ff3:64cb
143.243.100.204 0:0:0:0:0:ffff:8ff3:64cc
143.243.100.205 0:0:0:0:0:ffff:8ff3:64cd
143.243.100.206 0:0:0:0:0:ffff:8ff3:64ce
143.243.100.207 0:0:0:0:0:ffff:8ff3:64cf
143.243.100.208 0:0:0:0:0:ffff:8ff3:64d0
143.243.100.209 0:0:0:0:0:ffff:8ff3:64d1
143.243.100.210 0:0:0:0:0:ffff:8ff3:64d2
143.243.100.211 0:0:0:0:0:ffff:8ff3:64d3
143.243.100.212 0:0:0:0:0:ffff:8ff3:64d4
143.243.100.213 0:0:0:0:0:ffff:8ff3:64d5
143.243.100.214 0:0:0:0:0:ffff:8ff3:64d6
143.243.100.215 0:0:0:0:0:ffff:8ff3:64d7
143.243.100.216 0:0:0:0:0:ffff:8ff3:64d8
143.243.100.217 0:0:0:0:0:ffff:8ff3:64d9
143.243.100.218 0:0:0:0:0:ffff:8ff3:64da
143.243.100.219 0:0:0:0:0:ffff:8ff3:64db
143.243.100.220 0:0:0:0:0:ffff:8ff3:64dc
143.243.100.221 0:0:0:0:0:ffff:8ff3:64dd
143.243.100.222 0:0:0:0:0:ffff:8ff3:64de
143.243.100.223 0:0:0:0:0:ffff:8ff3:64df
143.243.100.224 0:0:0:0:0:ffff:8ff3:64e0
143.243.100.225 0:0:0:0:0:ffff:8ff3:64e1
143.243.100.226 0:0:0:0:0:ffff:8ff3:64e2
143.243.100.227 0:0:0:0:0:ffff:8ff3:64e3
143.243.100.228 0:0:0:0:0:ffff:8ff3:64e4
143.243.100.229 0:0:0:0:0:ffff:8ff3:64e5
143.243.100.230 0:0:0:0:0:ffff:8ff3:64e6
143.243.100.231 0:0:0:0:0:ffff:8ff3:64e7
143.243.100.232 0:0:0:0:0:ffff:8ff3:64e8
143.243.100.233 0:0:0:0:0:ffff:8ff3:64e9
143.243.100.234 0:0:0:0:0:ffff:8ff3:64ea
143.243.100.235 0:0:0:0:0:ffff:8ff3:64eb
143.243.100.236 0:0:0:0:0:ffff:8ff3:64ec
143.243.100.237 0:0:0:0:0:ffff:8ff3:64ed
143.243.100.238 0:0:0:0:0:ffff:8ff3:64ee
143.243.100.239 0:0:0:0:0:ffff:8ff3:64ef
143.243.100.240 0:0:0:0:0:ffff:8ff3:64f0
143.243.100.241 0:0:0:0:0:ffff:8ff3:64f1
143.243.100.242 0:0:0:0:0:ffff:8ff3:64f2
143.243.100.243 0:0:0:0:0:ffff:8ff3:64f3
143.243.100.244 0:0:0:0:0:ffff:8ff3:64f4
143.243.100.245 0:0:0:0:0:ffff:8ff3:64f5
143.243.100.246 0:0:0:0:0:ffff:8ff3:64f6
143.243.100.247 0:0:0:0:0:ffff:8ff3:64f7
143.243.100.248 0:0:0:0:0:ffff:8ff3:64f8
143.243.100.249 0:0:0:0:0:ffff:8ff3:64f9
143.243.100.250 0:0:0:0:0:ffff:8ff3:64fa
143.243.100.251 0:0:0:0:0:ffff:8ff3:64fb
143.243.100.252 0:0:0:0:0:ffff:8ff3:64fc
143.243.100.253 0:0:0:0:0:ffff:8ff3:64fd
143.243.100.254 0:0:0:0:0:ffff:8ff3:64fe
143.243.100.255 0:0:0:0:0:ffff:8ff3:64ff


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.