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
21.30.152.1 0:0:0:0:0:ffff:151e:9801
21.30.152.2 0:0:0:0:0:ffff:151e:9802
21.30.152.3 0:0:0:0:0:ffff:151e:9803
21.30.152.4 0:0:0:0:0:ffff:151e:9804
21.30.152.5 0:0:0:0:0:ffff:151e:9805
21.30.152.6 0:0:0:0:0:ffff:151e:9806
21.30.152.7 0:0:0:0:0:ffff:151e:9807
21.30.152.8 0:0:0:0:0:ffff:151e:9808
21.30.152.9 0:0:0:0:0:ffff:151e:9809
21.30.152.10 0:0:0:0:0:ffff:151e:980a
21.30.152.11 0:0:0:0:0:ffff:151e:980b
21.30.152.12 0:0:0:0:0:ffff:151e:980c
21.30.152.13 0:0:0:0:0:ffff:151e:980d
21.30.152.14 0:0:0:0:0:ffff:151e:980e
21.30.152.15 0:0:0:0:0:ffff:151e:980f
21.30.152.16 0:0:0:0:0:ffff:151e:9810
21.30.152.17 0:0:0:0:0:ffff:151e:9811
21.30.152.18 0:0:0:0:0:ffff:151e:9812
21.30.152.19 0:0:0:0:0:ffff:151e:9813
21.30.152.20 0:0:0:0:0:ffff:151e:9814
21.30.152.21 0:0:0:0:0:ffff:151e:9815
21.30.152.22 0:0:0:0:0:ffff:151e:9816
21.30.152.23 0:0:0:0:0:ffff:151e:9817
21.30.152.24 0:0:0:0:0:ffff:151e:9818
21.30.152.25 0:0:0:0:0:ffff:151e:9819
21.30.152.26 0:0:0:0:0:ffff:151e:981a
21.30.152.27 0:0:0:0:0:ffff:151e:981b
21.30.152.28 0:0:0:0:0:ffff:151e:981c
21.30.152.29 0:0:0:0:0:ffff:151e:981d
21.30.152.30 0:0:0:0:0:ffff:151e:981e
21.30.152.31 0:0:0:0:0:ffff:151e:981f
21.30.152.32 0:0:0:0:0:ffff:151e:9820
21.30.152.33 0:0:0:0:0:ffff:151e:9821
21.30.152.34 0:0:0:0:0:ffff:151e:9822
21.30.152.35 0:0:0:0:0:ffff:151e:9823
21.30.152.36 0:0:0:0:0:ffff:151e:9824
21.30.152.37 0:0:0:0:0:ffff:151e:9825
21.30.152.38 0:0:0:0:0:ffff:151e:9826
21.30.152.39 0:0:0:0:0:ffff:151e:9827
21.30.152.40 0:0:0:0:0:ffff:151e:9828
21.30.152.41 0:0:0:0:0:ffff:151e:9829
21.30.152.42 0:0:0:0:0:ffff:151e:982a
21.30.152.43 0:0:0:0:0:ffff:151e:982b
21.30.152.44 0:0:0:0:0:ffff:151e:982c
21.30.152.45 0:0:0:0:0:ffff:151e:982d
21.30.152.46 0:0:0:0:0:ffff:151e:982e
21.30.152.47 0:0:0:0:0:ffff:151e:982f
21.30.152.48 0:0:0:0:0:ffff:151e:9830
21.30.152.49 0:0:0:0:0:ffff:151e:9831
21.30.152.50 0:0:0:0:0:ffff:151e:9832
21.30.152.51 0:0:0:0:0:ffff:151e:9833
21.30.152.52 0:0:0:0:0:ffff:151e:9834
21.30.152.53 0:0:0:0:0:ffff:151e:9835
21.30.152.54 0:0:0:0:0:ffff:151e:9836
21.30.152.55 0:0:0:0:0:ffff:151e:9837
21.30.152.56 0:0:0:0:0:ffff:151e:9838
21.30.152.57 0:0:0:0:0:ffff:151e:9839
21.30.152.58 0:0:0:0:0:ffff:151e:983a
21.30.152.59 0:0:0:0:0:ffff:151e:983b
21.30.152.60 0:0:0:0:0:ffff:151e:983c


21.30.152.61 0:0:0:0:0:ffff:151e:983d
21.30.152.62 0:0:0:0:0:ffff:151e:983e
21.30.152.63 0:0:0:0:0:ffff:151e:983f
21.30.152.64 0:0:0:0:0:ffff:151e:9840
21.30.152.65 0:0:0:0:0:ffff:151e:9841
21.30.152.66 0:0:0:0:0:ffff:151e:9842
21.30.152.67 0:0:0:0:0:ffff:151e:9843
21.30.152.68 0:0:0:0:0:ffff:151e:9844
21.30.152.69 0:0:0:0:0:ffff:151e:9845
21.30.152.70 0:0:0:0:0:ffff:151e:9846
21.30.152.71 0:0:0:0:0:ffff:151e:9847
21.30.152.72 0:0:0:0:0:ffff:151e:9848
21.30.152.73 0:0:0:0:0:ffff:151e:9849
21.30.152.74 0:0:0:0:0:ffff:151e:984a
21.30.152.75 0:0:0:0:0:ffff:151e:984b
21.30.152.76 0:0:0:0:0:ffff:151e:984c
21.30.152.77 0:0:0:0:0:ffff:151e:984d
21.30.152.78 0:0:0:0:0:ffff:151e:984e
21.30.152.79 0:0:0:0:0:ffff:151e:984f
21.30.152.80 0:0:0:0:0:ffff:151e:9850
21.30.152.81 0:0:0:0:0:ffff:151e:9851
21.30.152.82 0:0:0:0:0:ffff:151e:9852
21.30.152.83 0:0:0:0:0:ffff:151e:9853
21.30.152.84 0:0:0:0:0:ffff:151e:9854
21.30.152.85 0:0:0:0:0:ffff:151e:9855
21.30.152.86 0:0:0:0:0:ffff:151e:9856
21.30.152.87 0:0:0:0:0:ffff:151e:9857
21.30.152.88 0:0:0:0:0:ffff:151e:9858
21.30.152.89 0:0:0:0:0:ffff:151e:9859
21.30.152.90 0:0:0:0:0:ffff:151e:985a
21.30.152.91 0:0:0:0:0:ffff:151e:985b
21.30.152.92 0:0:0:0:0:ffff:151e:985c
21.30.152.93 0:0:0:0:0:ffff:151e:985d
21.30.152.94 0:0:0:0:0:ffff:151e:985e
21.30.152.95 0:0:0:0:0:ffff:151e:985f
21.30.152.96 0:0:0:0:0:ffff:151e:9860
21.30.152.97 0:0:0:0:0:ffff:151e:9861
21.30.152.98 0:0:0:0:0:ffff:151e:9862
21.30.152.99 0:0:0:0:0:ffff:151e:9863
21.30.152.100 0:0:0:0:0:ffff:151e:9864
21.30.152.101 0:0:0:0:0:ffff:151e:9865
21.30.152.102 0:0:0:0:0:ffff:151e:9866
21.30.152.103 0:0:0:0:0:ffff:151e:9867
21.30.152.104 0:0:0:0:0:ffff:151e:9868
21.30.152.105 0:0:0:0:0:ffff:151e:9869
21.30.152.106 0:0:0:0:0:ffff:151e:986a
21.30.152.107 0:0:0:0:0:ffff:151e:986b
21.30.152.108 0:0:0:0:0:ffff:151e:986c
21.30.152.109 0:0:0:0:0:ffff:151e:986d
21.30.152.110 0:0:0:0:0:ffff:151e:986e
21.30.152.111 0:0:0:0:0:ffff:151e:986f
21.30.152.112 0:0:0:0:0:ffff:151e:9870
21.30.152.113 0:0:0:0:0:ffff:151e:9871
21.30.152.114 0:0:0:0:0:ffff:151e:9872
21.30.152.115 0:0:0:0:0:ffff:151e:9873
21.30.152.116 0:0:0:0:0:ffff:151e:9874
21.30.152.117 0:0:0:0:0:ffff:151e:9875
21.30.152.118 0:0:0:0:0:ffff:151e:9876
21.30.152.119 0:0:0:0:0:ffff:151e:9877
21.30.152.120 0:0:0:0:0:ffff:151e:9878


21.30.152.121 0:0:0:0:0:ffff:151e:9879
21.30.152.122 0:0:0:0:0:ffff:151e:987a
21.30.152.123 0:0:0:0:0:ffff:151e:987b
21.30.152.124 0:0:0:0:0:ffff:151e:987c
21.30.152.125 0:0:0:0:0:ffff:151e:987d
21.30.152.126 0:0:0:0:0:ffff:151e:987e
21.30.152.127 0:0:0:0:0:ffff:151e:987f
21.30.152.128 0:0:0:0:0:ffff:151e:9880
21.30.152.129 0:0:0:0:0:ffff:151e:9881
21.30.152.130 0:0:0:0:0:ffff:151e:9882
21.30.152.131 0:0:0:0:0:ffff:151e:9883
21.30.152.132 0:0:0:0:0:ffff:151e:9884
21.30.152.133 0:0:0:0:0:ffff:151e:9885
21.30.152.134 0:0:0:0:0:ffff:151e:9886
21.30.152.135 0:0:0:0:0:ffff:151e:9887
21.30.152.136 0:0:0:0:0:ffff:151e:9888
21.30.152.137 0:0:0:0:0:ffff:151e:9889
21.30.152.138 0:0:0:0:0:ffff:151e:988a
21.30.152.139 0:0:0:0:0:ffff:151e:988b
21.30.152.140 0:0:0:0:0:ffff:151e:988c
21.30.152.141 0:0:0:0:0:ffff:151e:988d
21.30.152.142 0:0:0:0:0:ffff:151e:988e
21.30.152.143 0:0:0:0:0:ffff:151e:988f
21.30.152.144 0:0:0:0:0:ffff:151e:9890
21.30.152.145 0:0:0:0:0:ffff:151e:9891
21.30.152.146 0:0:0:0:0:ffff:151e:9892
21.30.152.147 0:0:0:0:0:ffff:151e:9893
21.30.152.148 0:0:0:0:0:ffff:151e:9894
21.30.152.149 0:0:0:0:0:ffff:151e:9895
21.30.152.150 0:0:0:0:0:ffff:151e:9896
21.30.152.151 0:0:0:0:0:ffff:151e:9897
21.30.152.152 0:0:0:0:0:ffff:151e:9898
21.30.152.153 0:0:0:0:0:ffff:151e:9899
21.30.152.154 0:0:0:0:0:ffff:151e:989a
21.30.152.155 0:0:0:0:0:ffff:151e:989b
21.30.152.156 0:0:0:0:0:ffff:151e:989c
21.30.152.157 0:0:0:0:0:ffff:151e:989d
21.30.152.158 0:0:0:0:0:ffff:151e:989e
21.30.152.159 0:0:0:0:0:ffff:151e:989f
21.30.152.160 0:0:0:0:0:ffff:151e:98a0
21.30.152.161 0:0:0:0:0:ffff:151e:98a1
21.30.152.162 0:0:0:0:0:ffff:151e:98a2
21.30.152.163 0:0:0:0:0:ffff:151e:98a3
21.30.152.164 0:0:0:0:0:ffff:151e:98a4
21.30.152.165 0:0:0:0:0:ffff:151e:98a5
21.30.152.166 0:0:0:0:0:ffff:151e:98a6
21.30.152.167 0:0:0:0:0:ffff:151e:98a7
21.30.152.168 0:0:0:0:0:ffff:151e:98a8
21.30.152.169 0:0:0:0:0:ffff:151e:98a9
21.30.152.170 0:0:0:0:0:ffff:151e:98aa
21.30.152.171 0:0:0:0:0:ffff:151e:98ab
21.30.152.172 0:0:0:0:0:ffff:151e:98ac
21.30.152.173 0:0:0:0:0:ffff:151e:98ad
21.30.152.174 0:0:0:0:0:ffff:151e:98ae
21.30.152.175 0:0:0:0:0:ffff:151e:98af
21.30.152.176 0:0:0:0:0:ffff:151e:98b0
21.30.152.177 0:0:0:0:0:ffff:151e:98b1
21.30.152.178 0:0:0:0:0:ffff:151e:98b2
21.30.152.179 0:0:0:0:0:ffff:151e:98b3
21.30.152.180 0:0:0:0:0:ffff:151e:98b4


21.30.152.181 0:0:0:0:0:ffff:151e:98b5
21.30.152.182 0:0:0:0:0:ffff:151e:98b6
21.30.152.183 0:0:0:0:0:ffff:151e:98b7
21.30.152.184 0:0:0:0:0:ffff:151e:98b8
21.30.152.185 0:0:0:0:0:ffff:151e:98b9
21.30.152.186 0:0:0:0:0:ffff:151e:98ba
21.30.152.187 0:0:0:0:0:ffff:151e:98bb
21.30.152.188 0:0:0:0:0:ffff:151e:98bc
21.30.152.189 0:0:0:0:0:ffff:151e:98bd
21.30.152.190 0:0:0:0:0:ffff:151e:98be
21.30.152.191 0:0:0:0:0:ffff:151e:98bf
21.30.152.192 0:0:0:0:0:ffff:151e:98c0
21.30.152.193 0:0:0:0:0:ffff:151e:98c1
21.30.152.194 0:0:0:0:0:ffff:151e:98c2
21.30.152.195 0:0:0:0:0:ffff:151e:98c3
21.30.152.196 0:0:0:0:0:ffff:151e:98c4
21.30.152.197 0:0:0:0:0:ffff:151e:98c5
21.30.152.198 0:0:0:0:0:ffff:151e:98c6
21.30.152.199 0:0:0:0:0:ffff:151e:98c7
21.30.152.200 0:0:0:0:0:ffff:151e:98c8
21.30.152.201 0:0:0:0:0:ffff:151e:98c9
21.30.152.202 0:0:0:0:0:ffff:151e:98ca
21.30.152.203 0:0:0:0:0:ffff:151e:98cb
21.30.152.204 0:0:0:0:0:ffff:151e:98cc
21.30.152.205 0:0:0:0:0:ffff:151e:98cd
21.30.152.206 0:0:0:0:0:ffff:151e:98ce
21.30.152.207 0:0:0:0:0:ffff:151e:98cf
21.30.152.208 0:0:0:0:0:ffff:151e:98d0
21.30.152.209 0:0:0:0:0:ffff:151e:98d1
21.30.152.210 0:0:0:0:0:ffff:151e:98d2
21.30.152.211 0:0:0:0:0:ffff:151e:98d3
21.30.152.212 0:0:0:0:0:ffff:151e:98d4
21.30.152.213 0:0:0:0:0:ffff:151e:98d5
21.30.152.214 0:0:0:0:0:ffff:151e:98d6
21.30.152.215 0:0:0:0:0:ffff:151e:98d7
21.30.152.216 0:0:0:0:0:ffff:151e:98d8
21.30.152.217 0:0:0:0:0:ffff:151e:98d9
21.30.152.218 0:0:0:0:0:ffff:151e:98da
21.30.152.219 0:0:0:0:0:ffff:151e:98db
21.30.152.220 0:0:0:0:0:ffff:151e:98dc
21.30.152.221 0:0:0:0:0:ffff:151e:98dd
21.30.152.222 0:0:0:0:0:ffff:151e:98de
21.30.152.223 0:0:0:0:0:ffff:151e:98df
21.30.152.224 0:0:0:0:0:ffff:151e:98e0
21.30.152.225 0:0:0:0:0:ffff:151e:98e1
21.30.152.226 0:0:0:0:0:ffff:151e:98e2
21.30.152.227 0:0:0:0:0:ffff:151e:98e3
21.30.152.228 0:0:0:0:0:ffff:151e:98e4
21.30.152.229 0:0:0:0:0:ffff:151e:98e5
21.30.152.230 0:0:0:0:0:ffff:151e:98e6
21.30.152.231 0:0:0:0:0:ffff:151e:98e7
21.30.152.232 0:0:0:0:0:ffff:151e:98e8
21.30.152.233 0:0:0:0:0:ffff:151e:98e9
21.30.152.234 0:0:0:0:0:ffff:151e:98ea
21.30.152.235 0:0:0:0:0:ffff:151e:98eb
21.30.152.236 0:0:0:0:0:ffff:151e:98ec
21.30.152.237 0:0:0:0:0:ffff:151e:98ed
21.30.152.238 0:0:0:0:0:ffff:151e:98ee
21.30.152.239 0:0:0:0:0:ffff:151e:98ef
21.30.152.240 0:0:0:0:0:ffff:151e:98f0
21.30.152.241 0:0:0:0:0:ffff:151e:98f1
21.30.152.242 0:0:0:0:0:ffff:151e:98f2
21.30.152.243 0:0:0:0:0:ffff:151e:98f3
21.30.152.244 0:0:0:0:0:ffff:151e:98f4
21.30.152.245 0:0:0:0:0:ffff:151e:98f5
21.30.152.246 0:0:0:0:0:ffff:151e:98f6
21.30.152.247 0:0:0:0:0:ffff:151e:98f7
21.30.152.248 0:0:0:0:0:ffff:151e:98f8
21.30.152.249 0:0:0:0:0:ffff:151e:98f9
21.30.152.250 0:0:0:0:0:ffff:151e:98fa
21.30.152.251 0:0:0:0:0:ffff:151e:98fb
21.30.152.252 0:0:0:0:0:ffff:151e:98fc
21.30.152.253 0:0:0:0:0:ffff:151e:98fd
21.30.152.254 0:0:0:0:0:ffff:151e:98fe
21.30.152.255 0:0:0:0:0:ffff:151e:98ff


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.