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
144.21.245.1 0:0:0:0:0:ffff:9015:f501
144.21.245.2 0:0:0:0:0:ffff:9015:f502
144.21.245.3 0:0:0:0:0:ffff:9015:f503
144.21.245.4 0:0:0:0:0:ffff:9015:f504
144.21.245.5 0:0:0:0:0:ffff:9015:f505
144.21.245.6 0:0:0:0:0:ffff:9015:f506
144.21.245.7 0:0:0:0:0:ffff:9015:f507
144.21.245.8 0:0:0:0:0:ffff:9015:f508
144.21.245.9 0:0:0:0:0:ffff:9015:f509
144.21.245.10 0:0:0:0:0:ffff:9015:f50a
144.21.245.11 0:0:0:0:0:ffff:9015:f50b
144.21.245.12 0:0:0:0:0:ffff:9015:f50c
144.21.245.13 0:0:0:0:0:ffff:9015:f50d
144.21.245.14 0:0:0:0:0:ffff:9015:f50e
144.21.245.15 0:0:0:0:0:ffff:9015:f50f
144.21.245.16 0:0:0:0:0:ffff:9015:f510
144.21.245.17 0:0:0:0:0:ffff:9015:f511
144.21.245.18 0:0:0:0:0:ffff:9015:f512
144.21.245.19 0:0:0:0:0:ffff:9015:f513
144.21.245.20 0:0:0:0:0:ffff:9015:f514
144.21.245.21 0:0:0:0:0:ffff:9015:f515
144.21.245.22 0:0:0:0:0:ffff:9015:f516
144.21.245.23 0:0:0:0:0:ffff:9015:f517
144.21.245.24 0:0:0:0:0:ffff:9015:f518
144.21.245.25 0:0:0:0:0:ffff:9015:f519
144.21.245.26 0:0:0:0:0:ffff:9015:f51a
144.21.245.27 0:0:0:0:0:ffff:9015:f51b
144.21.245.28 0:0:0:0:0:ffff:9015:f51c
144.21.245.29 0:0:0:0:0:ffff:9015:f51d
144.21.245.30 0:0:0:0:0:ffff:9015:f51e
144.21.245.31 0:0:0:0:0:ffff:9015:f51f
144.21.245.32 0:0:0:0:0:ffff:9015:f520
144.21.245.33 0:0:0:0:0:ffff:9015:f521
144.21.245.34 0:0:0:0:0:ffff:9015:f522
144.21.245.35 0:0:0:0:0:ffff:9015:f523
144.21.245.36 0:0:0:0:0:ffff:9015:f524
144.21.245.37 0:0:0:0:0:ffff:9015:f525
144.21.245.38 0:0:0:0:0:ffff:9015:f526
144.21.245.39 0:0:0:0:0:ffff:9015:f527
144.21.245.40 0:0:0:0:0:ffff:9015:f528
144.21.245.41 0:0:0:0:0:ffff:9015:f529
144.21.245.42 0:0:0:0:0:ffff:9015:f52a
144.21.245.43 0:0:0:0:0:ffff:9015:f52b
144.21.245.44 0:0:0:0:0:ffff:9015:f52c
144.21.245.45 0:0:0:0:0:ffff:9015:f52d
144.21.245.46 0:0:0:0:0:ffff:9015:f52e
144.21.245.47 0:0:0:0:0:ffff:9015:f52f
144.21.245.48 0:0:0:0:0:ffff:9015:f530
144.21.245.49 0:0:0:0:0:ffff:9015:f531
144.21.245.50 0:0:0:0:0:ffff:9015:f532
144.21.245.51 0:0:0:0:0:ffff:9015:f533
144.21.245.52 0:0:0:0:0:ffff:9015:f534
144.21.245.53 0:0:0:0:0:ffff:9015:f535
144.21.245.54 0:0:0:0:0:ffff:9015:f536
144.21.245.55 0:0:0:0:0:ffff:9015:f537
144.21.245.56 0:0:0:0:0:ffff:9015:f538
144.21.245.57 0:0:0:0:0:ffff:9015:f539
144.21.245.58 0:0:0:0:0:ffff:9015:f53a
144.21.245.59 0:0:0:0:0:ffff:9015:f53b
144.21.245.60 0:0:0:0:0:ffff:9015:f53c


144.21.245.61 0:0:0:0:0:ffff:9015:f53d
144.21.245.62 0:0:0:0:0:ffff:9015:f53e
144.21.245.63 0:0:0:0:0:ffff:9015:f53f
144.21.245.64 0:0:0:0:0:ffff:9015:f540
144.21.245.65 0:0:0:0:0:ffff:9015:f541
144.21.245.66 0:0:0:0:0:ffff:9015:f542
144.21.245.67 0:0:0:0:0:ffff:9015:f543
144.21.245.68 0:0:0:0:0:ffff:9015:f544
144.21.245.69 0:0:0:0:0:ffff:9015:f545
144.21.245.70 0:0:0:0:0:ffff:9015:f546
144.21.245.71 0:0:0:0:0:ffff:9015:f547
144.21.245.72 0:0:0:0:0:ffff:9015:f548
144.21.245.73 0:0:0:0:0:ffff:9015:f549
144.21.245.74 0:0:0:0:0:ffff:9015:f54a
144.21.245.75 0:0:0:0:0:ffff:9015:f54b
144.21.245.76 0:0:0:0:0:ffff:9015:f54c
144.21.245.77 0:0:0:0:0:ffff:9015:f54d
144.21.245.78 0:0:0:0:0:ffff:9015:f54e
144.21.245.79 0:0:0:0:0:ffff:9015:f54f
144.21.245.80 0:0:0:0:0:ffff:9015:f550
144.21.245.81 0:0:0:0:0:ffff:9015:f551
144.21.245.82 0:0:0:0:0:ffff:9015:f552
144.21.245.83 0:0:0:0:0:ffff:9015:f553
144.21.245.84 0:0:0:0:0:ffff:9015:f554
144.21.245.85 0:0:0:0:0:ffff:9015:f555
144.21.245.86 0:0:0:0:0:ffff:9015:f556
144.21.245.87 0:0:0:0:0:ffff:9015:f557
144.21.245.88 0:0:0:0:0:ffff:9015:f558
144.21.245.89 0:0:0:0:0:ffff:9015:f559
144.21.245.90 0:0:0:0:0:ffff:9015:f55a
144.21.245.91 0:0:0:0:0:ffff:9015:f55b
144.21.245.92 0:0:0:0:0:ffff:9015:f55c
144.21.245.93 0:0:0:0:0:ffff:9015:f55d
144.21.245.94 0:0:0:0:0:ffff:9015:f55e
144.21.245.95 0:0:0:0:0:ffff:9015:f55f
144.21.245.96 0:0:0:0:0:ffff:9015:f560
144.21.245.97 0:0:0:0:0:ffff:9015:f561
144.21.245.98 0:0:0:0:0:ffff:9015:f562
144.21.245.99 0:0:0:0:0:ffff:9015:f563
144.21.245.100 0:0:0:0:0:ffff:9015:f564
144.21.245.101 0:0:0:0:0:ffff:9015:f565
144.21.245.102 0:0:0:0:0:ffff:9015:f566
144.21.245.103 0:0:0:0:0:ffff:9015:f567
144.21.245.104 0:0:0:0:0:ffff:9015:f568
144.21.245.105 0:0:0:0:0:ffff:9015:f569
144.21.245.106 0:0:0:0:0:ffff:9015:f56a
144.21.245.107 0:0:0:0:0:ffff:9015:f56b
144.21.245.108 0:0:0:0:0:ffff:9015:f56c
144.21.245.109 0:0:0:0:0:ffff:9015:f56d
144.21.245.110 0:0:0:0:0:ffff:9015:f56e
144.21.245.111 0:0:0:0:0:ffff:9015:f56f
144.21.245.112 0:0:0:0:0:ffff:9015:f570
144.21.245.113 0:0:0:0:0:ffff:9015:f571
144.21.245.114 0:0:0:0:0:ffff:9015:f572
144.21.245.115 0:0:0:0:0:ffff:9015:f573
144.21.245.116 0:0:0:0:0:ffff:9015:f574
144.21.245.117 0:0:0:0:0:ffff:9015:f575
144.21.245.118 0:0:0:0:0:ffff:9015:f576
144.21.245.119 0:0:0:0:0:ffff:9015:f577
144.21.245.120 0:0:0:0:0:ffff:9015:f578


144.21.245.121 0:0:0:0:0:ffff:9015:f579
144.21.245.122 0:0:0:0:0:ffff:9015:f57a
144.21.245.123 0:0:0:0:0:ffff:9015:f57b
144.21.245.124 0:0:0:0:0:ffff:9015:f57c
144.21.245.125 0:0:0:0:0:ffff:9015:f57d
144.21.245.126 0:0:0:0:0:ffff:9015:f57e
144.21.245.127 0:0:0:0:0:ffff:9015:f57f
144.21.245.128 0:0:0:0:0:ffff:9015:f580
144.21.245.129 0:0:0:0:0:ffff:9015:f581
144.21.245.130 0:0:0:0:0:ffff:9015:f582
144.21.245.131 0:0:0:0:0:ffff:9015:f583
144.21.245.132 0:0:0:0:0:ffff:9015:f584
144.21.245.133 0:0:0:0:0:ffff:9015:f585
144.21.245.134 0:0:0:0:0:ffff:9015:f586
144.21.245.135 0:0:0:0:0:ffff:9015:f587
144.21.245.136 0:0:0:0:0:ffff:9015:f588
144.21.245.137 0:0:0:0:0:ffff:9015:f589
144.21.245.138 0:0:0:0:0:ffff:9015:f58a
144.21.245.139 0:0:0:0:0:ffff:9015:f58b
144.21.245.140 0:0:0:0:0:ffff:9015:f58c
144.21.245.141 0:0:0:0:0:ffff:9015:f58d
144.21.245.142 0:0:0:0:0:ffff:9015:f58e
144.21.245.143 0:0:0:0:0:ffff:9015:f58f
144.21.245.144 0:0:0:0:0:ffff:9015:f590
144.21.245.145 0:0:0:0:0:ffff:9015:f591
144.21.245.146 0:0:0:0:0:ffff:9015:f592
144.21.245.147 0:0:0:0:0:ffff:9015:f593
144.21.245.148 0:0:0:0:0:ffff:9015:f594
144.21.245.149 0:0:0:0:0:ffff:9015:f595
144.21.245.150 0:0:0:0:0:ffff:9015:f596
144.21.245.151 0:0:0:0:0:ffff:9015:f597
144.21.245.152 0:0:0:0:0:ffff:9015:f598
144.21.245.153 0:0:0:0:0:ffff:9015:f599
144.21.245.154 0:0:0:0:0:ffff:9015:f59a
144.21.245.155 0:0:0:0:0:ffff:9015:f59b
144.21.245.156 0:0:0:0:0:ffff:9015:f59c
144.21.245.157 0:0:0:0:0:ffff:9015:f59d
144.21.245.158 0:0:0:0:0:ffff:9015:f59e
144.21.245.159 0:0:0:0:0:ffff:9015:f59f
144.21.245.160 0:0:0:0:0:ffff:9015:f5a0
144.21.245.161 0:0:0:0:0:ffff:9015:f5a1
144.21.245.162 0:0:0:0:0:ffff:9015:f5a2
144.21.245.163 0:0:0:0:0:ffff:9015:f5a3
144.21.245.164 0:0:0:0:0:ffff:9015:f5a4
144.21.245.165 0:0:0:0:0:ffff:9015:f5a5
144.21.245.166 0:0:0:0:0:ffff:9015:f5a6
144.21.245.167 0:0:0:0:0:ffff:9015:f5a7
144.21.245.168 0:0:0:0:0:ffff:9015:f5a8
144.21.245.169 0:0:0:0:0:ffff:9015:f5a9
144.21.245.170 0:0:0:0:0:ffff:9015:f5aa
144.21.245.171 0:0:0:0:0:ffff:9015:f5ab
144.21.245.172 0:0:0:0:0:ffff:9015:f5ac
144.21.245.173 0:0:0:0:0:ffff:9015:f5ad
144.21.245.174 0:0:0:0:0:ffff:9015:f5ae
144.21.245.175 0:0:0:0:0:ffff:9015:f5af
144.21.245.176 0:0:0:0:0:ffff:9015:f5b0
144.21.245.177 0:0:0:0:0:ffff:9015:f5b1
144.21.245.178 0:0:0:0:0:ffff:9015:f5b2
144.21.245.179 0:0:0:0:0:ffff:9015:f5b3
144.21.245.180 0:0:0:0:0:ffff:9015:f5b4


144.21.245.181 0:0:0:0:0:ffff:9015:f5b5
144.21.245.182 0:0:0:0:0:ffff:9015:f5b6
144.21.245.183 0:0:0:0:0:ffff:9015:f5b7
144.21.245.184 0:0:0:0:0:ffff:9015:f5b8
144.21.245.185 0:0:0:0:0:ffff:9015:f5b9
144.21.245.186 0:0:0:0:0:ffff:9015:f5ba
144.21.245.187 0:0:0:0:0:ffff:9015:f5bb
144.21.245.188 0:0:0:0:0:ffff:9015:f5bc
144.21.245.189 0:0:0:0:0:ffff:9015:f5bd
144.21.245.190 0:0:0:0:0:ffff:9015:f5be
144.21.245.191 0:0:0:0:0:ffff:9015:f5bf
144.21.245.192 0:0:0:0:0:ffff:9015:f5c0
144.21.245.193 0:0:0:0:0:ffff:9015:f5c1
144.21.245.194 0:0:0:0:0:ffff:9015:f5c2
144.21.245.195 0:0:0:0:0:ffff:9015:f5c3
144.21.245.196 0:0:0:0:0:ffff:9015:f5c4
144.21.245.197 0:0:0:0:0:ffff:9015:f5c5
144.21.245.198 0:0:0:0:0:ffff:9015:f5c6
144.21.245.199 0:0:0:0:0:ffff:9015:f5c7
144.21.245.200 0:0:0:0:0:ffff:9015:f5c8
144.21.245.201 0:0:0:0:0:ffff:9015:f5c9
144.21.245.202 0:0:0:0:0:ffff:9015:f5ca
144.21.245.203 0:0:0:0:0:ffff:9015:f5cb
144.21.245.204 0:0:0:0:0:ffff:9015:f5cc
144.21.245.205 0:0:0:0:0:ffff:9015:f5cd
144.21.245.206 0:0:0:0:0:ffff:9015:f5ce
144.21.245.207 0:0:0:0:0:ffff:9015:f5cf
144.21.245.208 0:0:0:0:0:ffff:9015:f5d0
144.21.245.209 0:0:0:0:0:ffff:9015:f5d1
144.21.245.210 0:0:0:0:0:ffff:9015:f5d2
144.21.245.211 0:0:0:0:0:ffff:9015:f5d3
144.21.245.212 0:0:0:0:0:ffff:9015:f5d4
144.21.245.213 0:0:0:0:0:ffff:9015:f5d5
144.21.245.214 0:0:0:0:0:ffff:9015:f5d6
144.21.245.215 0:0:0:0:0:ffff:9015:f5d7
144.21.245.216 0:0:0:0:0:ffff:9015:f5d8
144.21.245.217 0:0:0:0:0:ffff:9015:f5d9
144.21.245.218 0:0:0:0:0:ffff:9015:f5da
144.21.245.219 0:0:0:0:0:ffff:9015:f5db
144.21.245.220 0:0:0:0:0:ffff:9015:f5dc
144.21.245.221 0:0:0:0:0:ffff:9015:f5dd
144.21.245.222 0:0:0:0:0:ffff:9015:f5de
144.21.245.223 0:0:0:0:0:ffff:9015:f5df
144.21.245.224 0:0:0:0:0:ffff:9015:f5e0
144.21.245.225 0:0:0:0:0:ffff:9015:f5e1
144.21.245.226 0:0:0:0:0:ffff:9015:f5e2
144.21.245.227 0:0:0:0:0:ffff:9015:f5e3
144.21.245.228 0:0:0:0:0:ffff:9015:f5e4
144.21.245.229 0:0:0:0:0:ffff:9015:f5e5
144.21.245.230 0:0:0:0:0:ffff:9015:f5e6
144.21.245.231 0:0:0:0:0:ffff:9015:f5e7
144.21.245.232 0:0:0:0:0:ffff:9015:f5e8
144.21.245.233 0:0:0:0:0:ffff:9015:f5e9
144.21.245.234 0:0:0:0:0:ffff:9015:f5ea
144.21.245.235 0:0:0:0:0:ffff:9015:f5eb
144.21.245.236 0:0:0:0:0:ffff:9015:f5ec
144.21.245.237 0:0:0:0:0:ffff:9015:f5ed
144.21.245.238 0:0:0:0:0:ffff:9015:f5ee
144.21.245.239 0:0:0:0:0:ffff:9015:f5ef
144.21.245.240 0:0:0:0:0:ffff:9015:f5f0
144.21.245.241 0:0:0:0:0:ffff:9015:f5f1
144.21.245.242 0:0:0:0:0:ffff:9015:f5f2
144.21.245.243 0:0:0:0:0:ffff:9015:f5f3
144.21.245.244 0:0:0:0:0:ffff:9015:f5f4
144.21.245.245 0:0:0:0:0:ffff:9015:f5f5
144.21.245.246 0:0:0:0:0:ffff:9015:f5f6
144.21.245.247 0:0:0:0:0:ffff:9015:f5f7
144.21.245.248 0:0:0:0:0:ffff:9015:f5f8
144.21.245.249 0:0:0:0:0:ffff:9015:f5f9
144.21.245.250 0:0:0:0:0:ffff:9015:f5fa
144.21.245.251 0:0:0:0:0:ffff:9015:f5fb
144.21.245.252 0:0:0:0:0:ffff:9015:f5fc
144.21.245.253 0:0:0:0:0:ffff:9015:f5fd
144.21.245.254 0:0:0:0:0:ffff:9015:f5fe
144.21.245.255 0:0:0:0:0:ffff:9015:f5ff


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.