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
21.15.24.1 0:0:0:0:0:ffff:150f:1801
21.15.24.2 0:0:0:0:0:ffff:150f:1802
21.15.24.3 0:0:0:0:0:ffff:150f:1803
21.15.24.4 0:0:0:0:0:ffff:150f:1804
21.15.24.5 0:0:0:0:0:ffff:150f:1805
21.15.24.6 0:0:0:0:0:ffff:150f:1806
21.15.24.7 0:0:0:0:0:ffff:150f:1807
21.15.24.8 0:0:0:0:0:ffff:150f:1808
21.15.24.9 0:0:0:0:0:ffff:150f:1809
21.15.24.10 0:0:0:0:0:ffff:150f:180a
21.15.24.11 0:0:0:0:0:ffff:150f:180b
21.15.24.12 0:0:0:0:0:ffff:150f:180c
21.15.24.13 0:0:0:0:0:ffff:150f:180d
21.15.24.14 0:0:0:0:0:ffff:150f:180e
21.15.24.15 0:0:0:0:0:ffff:150f:180f
21.15.24.16 0:0:0:0:0:ffff:150f:1810
21.15.24.17 0:0:0:0:0:ffff:150f:1811
21.15.24.18 0:0:0:0:0:ffff:150f:1812
21.15.24.19 0:0:0:0:0:ffff:150f:1813
21.15.24.20 0:0:0:0:0:ffff:150f:1814
21.15.24.21 0:0:0:0:0:ffff:150f:1815
21.15.24.22 0:0:0:0:0:ffff:150f:1816
21.15.24.23 0:0:0:0:0:ffff:150f:1817
21.15.24.24 0:0:0:0:0:ffff:150f:1818
21.15.24.25 0:0:0:0:0:ffff:150f:1819
21.15.24.26 0:0:0:0:0:ffff:150f:181a
21.15.24.27 0:0:0:0:0:ffff:150f:181b
21.15.24.28 0:0:0:0:0:ffff:150f:181c
21.15.24.29 0:0:0:0:0:ffff:150f:181d
21.15.24.30 0:0:0:0:0:ffff:150f:181e
21.15.24.31 0:0:0:0:0:ffff:150f:181f
21.15.24.32 0:0:0:0:0:ffff:150f:1820
21.15.24.33 0:0:0:0:0:ffff:150f:1821
21.15.24.34 0:0:0:0:0:ffff:150f:1822
21.15.24.35 0:0:0:0:0:ffff:150f:1823
21.15.24.36 0:0:0:0:0:ffff:150f:1824
21.15.24.37 0:0:0:0:0:ffff:150f:1825
21.15.24.38 0:0:0:0:0:ffff:150f:1826
21.15.24.39 0:0:0:0:0:ffff:150f:1827
21.15.24.40 0:0:0:0:0:ffff:150f:1828
21.15.24.41 0:0:0:0:0:ffff:150f:1829
21.15.24.42 0:0:0:0:0:ffff:150f:182a
21.15.24.43 0:0:0:0:0:ffff:150f:182b
21.15.24.44 0:0:0:0:0:ffff:150f:182c
21.15.24.45 0:0:0:0:0:ffff:150f:182d
21.15.24.46 0:0:0:0:0:ffff:150f:182e
21.15.24.47 0:0:0:0:0:ffff:150f:182f
21.15.24.48 0:0:0:0:0:ffff:150f:1830
21.15.24.49 0:0:0:0:0:ffff:150f:1831
21.15.24.50 0:0:0:0:0:ffff:150f:1832
21.15.24.51 0:0:0:0:0:ffff:150f:1833
21.15.24.52 0:0:0:0:0:ffff:150f:1834
21.15.24.53 0:0:0:0:0:ffff:150f:1835
21.15.24.54 0:0:0:0:0:ffff:150f:1836
21.15.24.55 0:0:0:0:0:ffff:150f:1837
21.15.24.56 0:0:0:0:0:ffff:150f:1838
21.15.24.57 0:0:0:0:0:ffff:150f:1839
21.15.24.58 0:0:0:0:0:ffff:150f:183a
21.15.24.59 0:0:0:0:0:ffff:150f:183b
21.15.24.60 0:0:0:0:0:ffff:150f:183c


21.15.24.61 0:0:0:0:0:ffff:150f:183d
21.15.24.62 0:0:0:0:0:ffff:150f:183e
21.15.24.63 0:0:0:0:0:ffff:150f:183f
21.15.24.64 0:0:0:0:0:ffff:150f:1840
21.15.24.65 0:0:0:0:0:ffff:150f:1841
21.15.24.66 0:0:0:0:0:ffff:150f:1842
21.15.24.67 0:0:0:0:0:ffff:150f:1843
21.15.24.68 0:0:0:0:0:ffff:150f:1844
21.15.24.69 0:0:0:0:0:ffff:150f:1845
21.15.24.70 0:0:0:0:0:ffff:150f:1846
21.15.24.71 0:0:0:0:0:ffff:150f:1847
21.15.24.72 0:0:0:0:0:ffff:150f:1848
21.15.24.73 0:0:0:0:0:ffff:150f:1849
21.15.24.74 0:0:0:0:0:ffff:150f:184a
21.15.24.75 0:0:0:0:0:ffff:150f:184b
21.15.24.76 0:0:0:0:0:ffff:150f:184c
21.15.24.77 0:0:0:0:0:ffff:150f:184d
21.15.24.78 0:0:0:0:0:ffff:150f:184e
21.15.24.79 0:0:0:0:0:ffff:150f:184f
21.15.24.80 0:0:0:0:0:ffff:150f:1850
21.15.24.81 0:0:0:0:0:ffff:150f:1851
21.15.24.82 0:0:0:0:0:ffff:150f:1852
21.15.24.83 0:0:0:0:0:ffff:150f:1853
21.15.24.84 0:0:0:0:0:ffff:150f:1854
21.15.24.85 0:0:0:0:0:ffff:150f:1855
21.15.24.86 0:0:0:0:0:ffff:150f:1856
21.15.24.87 0:0:0:0:0:ffff:150f:1857
21.15.24.88 0:0:0:0:0:ffff:150f:1858
21.15.24.89 0:0:0:0:0:ffff:150f:1859
21.15.24.90 0:0:0:0:0:ffff:150f:185a
21.15.24.91 0:0:0:0:0:ffff:150f:185b
21.15.24.92 0:0:0:0:0:ffff:150f:185c
21.15.24.93 0:0:0:0:0:ffff:150f:185d
21.15.24.94 0:0:0:0:0:ffff:150f:185e
21.15.24.95 0:0:0:0:0:ffff:150f:185f
21.15.24.96 0:0:0:0:0:ffff:150f:1860
21.15.24.97 0:0:0:0:0:ffff:150f:1861
21.15.24.98 0:0:0:0:0:ffff:150f:1862
21.15.24.99 0:0:0:0:0:ffff:150f:1863
21.15.24.100 0:0:0:0:0:ffff:150f:1864
21.15.24.101 0:0:0:0:0:ffff:150f:1865
21.15.24.102 0:0:0:0:0:ffff:150f:1866
21.15.24.103 0:0:0:0:0:ffff:150f:1867
21.15.24.104 0:0:0:0:0:ffff:150f:1868
21.15.24.105 0:0:0:0:0:ffff:150f:1869
21.15.24.106 0:0:0:0:0:ffff:150f:186a
21.15.24.107 0:0:0:0:0:ffff:150f:186b
21.15.24.108 0:0:0:0:0:ffff:150f:186c
21.15.24.109 0:0:0:0:0:ffff:150f:186d
21.15.24.110 0:0:0:0:0:ffff:150f:186e
21.15.24.111 0:0:0:0:0:ffff:150f:186f
21.15.24.112 0:0:0:0:0:ffff:150f:1870
21.15.24.113 0:0:0:0:0:ffff:150f:1871
21.15.24.114 0:0:0:0:0:ffff:150f:1872
21.15.24.115 0:0:0:0:0:ffff:150f:1873
21.15.24.116 0:0:0:0:0:ffff:150f:1874
21.15.24.117 0:0:0:0:0:ffff:150f:1875
21.15.24.118 0:0:0:0:0:ffff:150f:1876
21.15.24.119 0:0:0:0:0:ffff:150f:1877
21.15.24.120 0:0:0:0:0:ffff:150f:1878


21.15.24.121 0:0:0:0:0:ffff:150f:1879
21.15.24.122 0:0:0:0:0:ffff:150f:187a
21.15.24.123 0:0:0:0:0:ffff:150f:187b
21.15.24.124 0:0:0:0:0:ffff:150f:187c
21.15.24.125 0:0:0:0:0:ffff:150f:187d
21.15.24.126 0:0:0:0:0:ffff:150f:187e
21.15.24.127 0:0:0:0:0:ffff:150f:187f
21.15.24.128 0:0:0:0:0:ffff:150f:1880
21.15.24.129 0:0:0:0:0:ffff:150f:1881
21.15.24.130 0:0:0:0:0:ffff:150f:1882
21.15.24.131 0:0:0:0:0:ffff:150f:1883
21.15.24.132 0:0:0:0:0:ffff:150f:1884
21.15.24.133 0:0:0:0:0:ffff:150f:1885
21.15.24.134 0:0:0:0:0:ffff:150f:1886
21.15.24.135 0:0:0:0:0:ffff:150f:1887
21.15.24.136 0:0:0:0:0:ffff:150f:1888
21.15.24.137 0:0:0:0:0:ffff:150f:1889
21.15.24.138 0:0:0:0:0:ffff:150f:188a
21.15.24.139 0:0:0:0:0:ffff:150f:188b
21.15.24.140 0:0:0:0:0:ffff:150f:188c
21.15.24.141 0:0:0:0:0:ffff:150f:188d
21.15.24.142 0:0:0:0:0:ffff:150f:188e
21.15.24.143 0:0:0:0:0:ffff:150f:188f
21.15.24.144 0:0:0:0:0:ffff:150f:1890
21.15.24.145 0:0:0:0:0:ffff:150f:1891
21.15.24.146 0:0:0:0:0:ffff:150f:1892
21.15.24.147 0:0:0:0:0:ffff:150f:1893
21.15.24.148 0:0:0:0:0:ffff:150f:1894
21.15.24.149 0:0:0:0:0:ffff:150f:1895
21.15.24.150 0:0:0:0:0:ffff:150f:1896
21.15.24.151 0:0:0:0:0:ffff:150f:1897
21.15.24.152 0:0:0:0:0:ffff:150f:1898
21.15.24.153 0:0:0:0:0:ffff:150f:1899
21.15.24.154 0:0:0:0:0:ffff:150f:189a
21.15.24.155 0:0:0:0:0:ffff:150f:189b
21.15.24.156 0:0:0:0:0:ffff:150f:189c
21.15.24.157 0:0:0:0:0:ffff:150f:189d
21.15.24.158 0:0:0:0:0:ffff:150f:189e
21.15.24.159 0:0:0:0:0:ffff:150f:189f
21.15.24.160 0:0:0:0:0:ffff:150f:18a0
21.15.24.161 0:0:0:0:0:ffff:150f:18a1
21.15.24.162 0:0:0:0:0:ffff:150f:18a2
21.15.24.163 0:0:0:0:0:ffff:150f:18a3
21.15.24.164 0:0:0:0:0:ffff:150f:18a4
21.15.24.165 0:0:0:0:0:ffff:150f:18a5
21.15.24.166 0:0:0:0:0:ffff:150f:18a6
21.15.24.167 0:0:0:0:0:ffff:150f:18a7
21.15.24.168 0:0:0:0:0:ffff:150f:18a8
21.15.24.169 0:0:0:0:0:ffff:150f:18a9
21.15.24.170 0:0:0:0:0:ffff:150f:18aa
21.15.24.171 0:0:0:0:0:ffff:150f:18ab
21.15.24.172 0:0:0:0:0:ffff:150f:18ac
21.15.24.173 0:0:0:0:0:ffff:150f:18ad
21.15.24.174 0:0:0:0:0:ffff:150f:18ae
21.15.24.175 0:0:0:0:0:ffff:150f:18af
21.15.24.176 0:0:0:0:0:ffff:150f:18b0
21.15.24.177 0:0:0:0:0:ffff:150f:18b1
21.15.24.178 0:0:0:0:0:ffff:150f:18b2
21.15.24.179 0:0:0:0:0:ffff:150f:18b3
21.15.24.180 0:0:0:0:0:ffff:150f:18b4


21.15.24.181 0:0:0:0:0:ffff:150f:18b5
21.15.24.182 0:0:0:0:0:ffff:150f:18b6
21.15.24.183 0:0:0:0:0:ffff:150f:18b7
21.15.24.184 0:0:0:0:0:ffff:150f:18b8
21.15.24.185 0:0:0:0:0:ffff:150f:18b9
21.15.24.186 0:0:0:0:0:ffff:150f:18ba
21.15.24.187 0:0:0:0:0:ffff:150f:18bb
21.15.24.188 0:0:0:0:0:ffff:150f:18bc
21.15.24.189 0:0:0:0:0:ffff:150f:18bd
21.15.24.190 0:0:0:0:0:ffff:150f:18be
21.15.24.191 0:0:0:0:0:ffff:150f:18bf
21.15.24.192 0:0:0:0:0:ffff:150f:18c0
21.15.24.193 0:0:0:0:0:ffff:150f:18c1
21.15.24.194 0:0:0:0:0:ffff:150f:18c2
21.15.24.195 0:0:0:0:0:ffff:150f:18c3
21.15.24.196 0:0:0:0:0:ffff:150f:18c4
21.15.24.197 0:0:0:0:0:ffff:150f:18c5
21.15.24.198 0:0:0:0:0:ffff:150f:18c6
21.15.24.199 0:0:0:0:0:ffff:150f:18c7
21.15.24.200 0:0:0:0:0:ffff:150f:18c8
21.15.24.201 0:0:0:0:0:ffff:150f:18c9
21.15.24.202 0:0:0:0:0:ffff:150f:18ca
21.15.24.203 0:0:0:0:0:ffff:150f:18cb
21.15.24.204 0:0:0:0:0:ffff:150f:18cc
21.15.24.205 0:0:0:0:0:ffff:150f:18cd
21.15.24.206 0:0:0:0:0:ffff:150f:18ce
21.15.24.207 0:0:0:0:0:ffff:150f:18cf
21.15.24.208 0:0:0:0:0:ffff:150f:18d0
21.15.24.209 0:0:0:0:0:ffff:150f:18d1
21.15.24.210 0:0:0:0:0:ffff:150f:18d2
21.15.24.211 0:0:0:0:0:ffff:150f:18d3
21.15.24.212 0:0:0:0:0:ffff:150f:18d4
21.15.24.213 0:0:0:0:0:ffff:150f:18d5
21.15.24.214 0:0:0:0:0:ffff:150f:18d6
21.15.24.215 0:0:0:0:0:ffff:150f:18d7
21.15.24.216 0:0:0:0:0:ffff:150f:18d8
21.15.24.217 0:0:0:0:0:ffff:150f:18d9
21.15.24.218 0:0:0:0:0:ffff:150f:18da
21.15.24.219 0:0:0:0:0:ffff:150f:18db
21.15.24.220 0:0:0:0:0:ffff:150f:18dc
21.15.24.221 0:0:0:0:0:ffff:150f:18dd
21.15.24.222 0:0:0:0:0:ffff:150f:18de
21.15.24.223 0:0:0:0:0:ffff:150f:18df
21.15.24.224 0:0:0:0:0:ffff:150f:18e0
21.15.24.225 0:0:0:0:0:ffff:150f:18e1
21.15.24.226 0:0:0:0:0:ffff:150f:18e2
21.15.24.227 0:0:0:0:0:ffff:150f:18e3
21.15.24.228 0:0:0:0:0:ffff:150f:18e4
21.15.24.229 0:0:0:0:0:ffff:150f:18e5
21.15.24.230 0:0:0:0:0:ffff:150f:18e6
21.15.24.231 0:0:0:0:0:ffff:150f:18e7
21.15.24.232 0:0:0:0:0:ffff:150f:18e8
21.15.24.233 0:0:0:0:0:ffff:150f:18e9
21.15.24.234 0:0:0:0:0:ffff:150f:18ea
21.15.24.235 0:0:0:0:0:ffff:150f:18eb
21.15.24.236 0:0:0:0:0:ffff:150f:18ec
21.15.24.237 0:0:0:0:0:ffff:150f:18ed
21.15.24.238 0:0:0:0:0:ffff:150f:18ee
21.15.24.239 0:0:0:0:0:ffff:150f:18ef
21.15.24.240 0:0:0:0:0:ffff:150f:18f0
21.15.24.241 0:0:0:0:0:ffff:150f:18f1
21.15.24.242 0:0:0:0:0:ffff:150f:18f2
21.15.24.243 0:0:0:0:0:ffff:150f:18f3
21.15.24.244 0:0:0:0:0:ffff:150f:18f4
21.15.24.245 0:0:0:0:0:ffff:150f:18f5
21.15.24.246 0:0:0:0:0:ffff:150f:18f6
21.15.24.247 0:0:0:0:0:ffff:150f:18f7
21.15.24.248 0:0:0:0:0:ffff:150f:18f8
21.15.24.249 0:0:0:0:0:ffff:150f:18f9
21.15.24.250 0:0:0:0:0:ffff:150f:18fa
21.15.24.251 0:0:0:0:0:ffff:150f:18fb
21.15.24.252 0:0:0:0:0:ffff:150f:18fc
21.15.24.253 0:0:0:0:0:ffff:150f:18fd
21.15.24.254 0:0:0:0:0:ffff:150f:18fe
21.15.24.255 0:0:0:0:0:ffff:150f:18ff


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.