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
203.153.120.1 0:0:0:0:0:ffff:cb99:7801
203.153.120.2 0:0:0:0:0:ffff:cb99:7802
203.153.120.3 0:0:0:0:0:ffff:cb99:7803
203.153.120.4 0:0:0:0:0:ffff:cb99:7804
203.153.120.5 0:0:0:0:0:ffff:cb99:7805
203.153.120.6 0:0:0:0:0:ffff:cb99:7806
203.153.120.7 0:0:0:0:0:ffff:cb99:7807
203.153.120.8 0:0:0:0:0:ffff:cb99:7808
203.153.120.9 0:0:0:0:0:ffff:cb99:7809
203.153.120.10 0:0:0:0:0:ffff:cb99:780a
203.153.120.11 0:0:0:0:0:ffff:cb99:780b
203.153.120.12 0:0:0:0:0:ffff:cb99:780c
203.153.120.13 0:0:0:0:0:ffff:cb99:780d
203.153.120.14 0:0:0:0:0:ffff:cb99:780e
203.153.120.15 0:0:0:0:0:ffff:cb99:780f
203.153.120.16 0:0:0:0:0:ffff:cb99:7810
203.153.120.17 0:0:0:0:0:ffff:cb99:7811
203.153.120.18 0:0:0:0:0:ffff:cb99:7812
203.153.120.19 0:0:0:0:0:ffff:cb99:7813
203.153.120.20 0:0:0:0:0:ffff:cb99:7814
203.153.120.21 0:0:0:0:0:ffff:cb99:7815
203.153.120.22 0:0:0:0:0:ffff:cb99:7816
203.153.120.23 0:0:0:0:0:ffff:cb99:7817
203.153.120.24 0:0:0:0:0:ffff:cb99:7818
203.153.120.25 0:0:0:0:0:ffff:cb99:7819
203.153.120.26 0:0:0:0:0:ffff:cb99:781a
203.153.120.27 0:0:0:0:0:ffff:cb99:781b
203.153.120.28 0:0:0:0:0:ffff:cb99:781c
203.153.120.29 0:0:0:0:0:ffff:cb99:781d
203.153.120.30 0:0:0:0:0:ffff:cb99:781e
203.153.120.31 0:0:0:0:0:ffff:cb99:781f
203.153.120.32 0:0:0:0:0:ffff:cb99:7820
203.153.120.33 0:0:0:0:0:ffff:cb99:7821
203.153.120.34 0:0:0:0:0:ffff:cb99:7822
203.153.120.35 0:0:0:0:0:ffff:cb99:7823
203.153.120.36 0:0:0:0:0:ffff:cb99:7824
203.153.120.37 0:0:0:0:0:ffff:cb99:7825
203.153.120.38 0:0:0:0:0:ffff:cb99:7826
203.153.120.39 0:0:0:0:0:ffff:cb99:7827
203.153.120.40 0:0:0:0:0:ffff:cb99:7828
203.153.120.41 0:0:0:0:0:ffff:cb99:7829
203.153.120.42 0:0:0:0:0:ffff:cb99:782a
203.153.120.43 0:0:0:0:0:ffff:cb99:782b
203.153.120.44 0:0:0:0:0:ffff:cb99:782c
203.153.120.45 0:0:0:0:0:ffff:cb99:782d
203.153.120.46 0:0:0:0:0:ffff:cb99:782e
203.153.120.47 0:0:0:0:0:ffff:cb99:782f
203.153.120.48 0:0:0:0:0:ffff:cb99:7830
203.153.120.49 0:0:0:0:0:ffff:cb99:7831
203.153.120.50 0:0:0:0:0:ffff:cb99:7832
203.153.120.51 0:0:0:0:0:ffff:cb99:7833
203.153.120.52 0:0:0:0:0:ffff:cb99:7834
203.153.120.53 0:0:0:0:0:ffff:cb99:7835
203.153.120.54 0:0:0:0:0:ffff:cb99:7836
203.153.120.55 0:0:0:0:0:ffff:cb99:7837
203.153.120.56 0:0:0:0:0:ffff:cb99:7838
203.153.120.57 0:0:0:0:0:ffff:cb99:7839
203.153.120.58 0:0:0:0:0:ffff:cb99:783a
203.153.120.59 0:0:0:0:0:ffff:cb99:783b
203.153.120.60 0:0:0:0:0:ffff:cb99:783c


203.153.120.61 0:0:0:0:0:ffff:cb99:783d
203.153.120.62 0:0:0:0:0:ffff:cb99:783e
203.153.120.63 0:0:0:0:0:ffff:cb99:783f
203.153.120.64 0:0:0:0:0:ffff:cb99:7840
203.153.120.65 0:0:0:0:0:ffff:cb99:7841
203.153.120.66 0:0:0:0:0:ffff:cb99:7842
203.153.120.67 0:0:0:0:0:ffff:cb99:7843
203.153.120.68 0:0:0:0:0:ffff:cb99:7844
203.153.120.69 0:0:0:0:0:ffff:cb99:7845
203.153.120.70 0:0:0:0:0:ffff:cb99:7846
203.153.120.71 0:0:0:0:0:ffff:cb99:7847
203.153.120.72 0:0:0:0:0:ffff:cb99:7848
203.153.120.73 0:0:0:0:0:ffff:cb99:7849
203.153.120.74 0:0:0:0:0:ffff:cb99:784a
203.153.120.75 0:0:0:0:0:ffff:cb99:784b
203.153.120.76 0:0:0:0:0:ffff:cb99:784c
203.153.120.77 0:0:0:0:0:ffff:cb99:784d
203.153.120.78 0:0:0:0:0:ffff:cb99:784e
203.153.120.79 0:0:0:0:0:ffff:cb99:784f
203.153.120.80 0:0:0:0:0:ffff:cb99:7850
203.153.120.81 0:0:0:0:0:ffff:cb99:7851
203.153.120.82 0:0:0:0:0:ffff:cb99:7852
203.153.120.83 0:0:0:0:0:ffff:cb99:7853
203.153.120.84 0:0:0:0:0:ffff:cb99:7854
203.153.120.85 0:0:0:0:0:ffff:cb99:7855
203.153.120.86 0:0:0:0:0:ffff:cb99:7856
203.153.120.87 0:0:0:0:0:ffff:cb99:7857
203.153.120.88 0:0:0:0:0:ffff:cb99:7858
203.153.120.89 0:0:0:0:0:ffff:cb99:7859
203.153.120.90 0:0:0:0:0:ffff:cb99:785a
203.153.120.91 0:0:0:0:0:ffff:cb99:785b
203.153.120.92 0:0:0:0:0:ffff:cb99:785c
203.153.120.93 0:0:0:0:0:ffff:cb99:785d
203.153.120.94 0:0:0:0:0:ffff:cb99:785e
203.153.120.95 0:0:0:0:0:ffff:cb99:785f
203.153.120.96 0:0:0:0:0:ffff:cb99:7860
203.153.120.97 0:0:0:0:0:ffff:cb99:7861
203.153.120.98 0:0:0:0:0:ffff:cb99:7862
203.153.120.99 0:0:0:0:0:ffff:cb99:7863
203.153.120.100 0:0:0:0:0:ffff:cb99:7864
203.153.120.101 0:0:0:0:0:ffff:cb99:7865
203.153.120.102 0:0:0:0:0:ffff:cb99:7866
203.153.120.103 0:0:0:0:0:ffff:cb99:7867
203.153.120.104 0:0:0:0:0:ffff:cb99:7868
203.153.120.105 0:0:0:0:0:ffff:cb99:7869
203.153.120.106 0:0:0:0:0:ffff:cb99:786a
203.153.120.107 0:0:0:0:0:ffff:cb99:786b
203.153.120.108 0:0:0:0:0:ffff:cb99:786c
203.153.120.109 0:0:0:0:0:ffff:cb99:786d
203.153.120.110 0:0:0:0:0:ffff:cb99:786e
203.153.120.111 0:0:0:0:0:ffff:cb99:786f
203.153.120.112 0:0:0:0:0:ffff:cb99:7870
203.153.120.113 0:0:0:0:0:ffff:cb99:7871
203.153.120.114 0:0:0:0:0:ffff:cb99:7872
203.153.120.115 0:0:0:0:0:ffff:cb99:7873
203.153.120.116 0:0:0:0:0:ffff:cb99:7874
203.153.120.117 0:0:0:0:0:ffff:cb99:7875
203.153.120.118 0:0:0:0:0:ffff:cb99:7876
203.153.120.119 0:0:0:0:0:ffff:cb99:7877
203.153.120.120 0:0:0:0:0:ffff:cb99:7878


203.153.120.121 0:0:0:0:0:ffff:cb99:7879
203.153.120.122 0:0:0:0:0:ffff:cb99:787a
203.153.120.123 0:0:0:0:0:ffff:cb99:787b
203.153.120.124 0:0:0:0:0:ffff:cb99:787c
203.153.120.125 0:0:0:0:0:ffff:cb99:787d
203.153.120.126 0:0:0:0:0:ffff:cb99:787e
203.153.120.127 0:0:0:0:0:ffff:cb99:787f
203.153.120.128 0:0:0:0:0:ffff:cb99:7880
203.153.120.129 0:0:0:0:0:ffff:cb99:7881
203.153.120.130 0:0:0:0:0:ffff:cb99:7882
203.153.120.131 0:0:0:0:0:ffff:cb99:7883
203.153.120.132 0:0:0:0:0:ffff:cb99:7884
203.153.120.133 0:0:0:0:0:ffff:cb99:7885
203.153.120.134 0:0:0:0:0:ffff:cb99:7886
203.153.120.135 0:0:0:0:0:ffff:cb99:7887
203.153.120.136 0:0:0:0:0:ffff:cb99:7888
203.153.120.137 0:0:0:0:0:ffff:cb99:7889
203.153.120.138 0:0:0:0:0:ffff:cb99:788a
203.153.120.139 0:0:0:0:0:ffff:cb99:788b
203.153.120.140 0:0:0:0:0:ffff:cb99:788c
203.153.120.141 0:0:0:0:0:ffff:cb99:788d
203.153.120.142 0:0:0:0:0:ffff:cb99:788e
203.153.120.143 0:0:0:0:0:ffff:cb99:788f
203.153.120.144 0:0:0:0:0:ffff:cb99:7890
203.153.120.145 0:0:0:0:0:ffff:cb99:7891
203.153.120.146 0:0:0:0:0:ffff:cb99:7892
203.153.120.147 0:0:0:0:0:ffff:cb99:7893
203.153.120.148 0:0:0:0:0:ffff:cb99:7894
203.153.120.149 0:0:0:0:0:ffff:cb99:7895
203.153.120.150 0:0:0:0:0:ffff:cb99:7896
203.153.120.151 0:0:0:0:0:ffff:cb99:7897
203.153.120.152 0:0:0:0:0:ffff:cb99:7898
203.153.120.153 0:0:0:0:0:ffff:cb99:7899
203.153.120.154 0:0:0:0:0:ffff:cb99:789a
203.153.120.155 0:0:0:0:0:ffff:cb99:789b
203.153.120.156 0:0:0:0:0:ffff:cb99:789c
203.153.120.157 0:0:0:0:0:ffff:cb99:789d
203.153.120.158 0:0:0:0:0:ffff:cb99:789e
203.153.120.159 0:0:0:0:0:ffff:cb99:789f
203.153.120.160 0:0:0:0:0:ffff:cb99:78a0
203.153.120.161 0:0:0:0:0:ffff:cb99:78a1
203.153.120.162 0:0:0:0:0:ffff:cb99:78a2
203.153.120.163 0:0:0:0:0:ffff:cb99:78a3
203.153.120.164 0:0:0:0:0:ffff:cb99:78a4
203.153.120.165 0:0:0:0:0:ffff:cb99:78a5
203.153.120.166 0:0:0:0:0:ffff:cb99:78a6
203.153.120.167 0:0:0:0:0:ffff:cb99:78a7
203.153.120.168 0:0:0:0:0:ffff:cb99:78a8
203.153.120.169 0:0:0:0:0:ffff:cb99:78a9
203.153.120.170 0:0:0:0:0:ffff:cb99:78aa
203.153.120.171 0:0:0:0:0:ffff:cb99:78ab
203.153.120.172 0:0:0:0:0:ffff:cb99:78ac
203.153.120.173 0:0:0:0:0:ffff:cb99:78ad
203.153.120.174 0:0:0:0:0:ffff:cb99:78ae
203.153.120.175 0:0:0:0:0:ffff:cb99:78af
203.153.120.176 0:0:0:0:0:ffff:cb99:78b0
203.153.120.177 0:0:0:0:0:ffff:cb99:78b1
203.153.120.178 0:0:0:0:0:ffff:cb99:78b2
203.153.120.179 0:0:0:0:0:ffff:cb99:78b3
203.153.120.180 0:0:0:0:0:ffff:cb99:78b4


203.153.120.181 0:0:0:0:0:ffff:cb99:78b5
203.153.120.182 0:0:0:0:0:ffff:cb99:78b6
203.153.120.183 0:0:0:0:0:ffff:cb99:78b7
203.153.120.184 0:0:0:0:0:ffff:cb99:78b8
203.153.120.185 0:0:0:0:0:ffff:cb99:78b9
203.153.120.186 0:0:0:0:0:ffff:cb99:78ba
203.153.120.187 0:0:0:0:0:ffff:cb99:78bb
203.153.120.188 0:0:0:0:0:ffff:cb99:78bc
203.153.120.189 0:0:0:0:0:ffff:cb99:78bd
203.153.120.190 0:0:0:0:0:ffff:cb99:78be
203.153.120.191 0:0:0:0:0:ffff:cb99:78bf
203.153.120.192 0:0:0:0:0:ffff:cb99:78c0
203.153.120.193 0:0:0:0:0:ffff:cb99:78c1
203.153.120.194 0:0:0:0:0:ffff:cb99:78c2
203.153.120.195 0:0:0:0:0:ffff:cb99:78c3
203.153.120.196 0:0:0:0:0:ffff:cb99:78c4
203.153.120.197 0:0:0:0:0:ffff:cb99:78c5
203.153.120.198 0:0:0:0:0:ffff:cb99:78c6
203.153.120.199 0:0:0:0:0:ffff:cb99:78c7
203.153.120.200 0:0:0:0:0:ffff:cb99:78c8
203.153.120.201 0:0:0:0:0:ffff:cb99:78c9
203.153.120.202 0:0:0:0:0:ffff:cb99:78ca
203.153.120.203 0:0:0:0:0:ffff:cb99:78cb
203.153.120.204 0:0:0:0:0:ffff:cb99:78cc
203.153.120.205 0:0:0:0:0:ffff:cb99:78cd
203.153.120.206 0:0:0:0:0:ffff:cb99:78ce
203.153.120.207 0:0:0:0:0:ffff:cb99:78cf
203.153.120.208 0:0:0:0:0:ffff:cb99:78d0
203.153.120.209 0:0:0:0:0:ffff:cb99:78d1
203.153.120.210 0:0:0:0:0:ffff:cb99:78d2
203.153.120.211 0:0:0:0:0:ffff:cb99:78d3
203.153.120.212 0:0:0:0:0:ffff:cb99:78d4
203.153.120.213 0:0:0:0:0:ffff:cb99:78d5
203.153.120.214 0:0:0:0:0:ffff:cb99:78d6
203.153.120.215 0:0:0:0:0:ffff:cb99:78d7
203.153.120.216 0:0:0:0:0:ffff:cb99:78d8
203.153.120.217 0:0:0:0:0:ffff:cb99:78d9
203.153.120.218 0:0:0:0:0:ffff:cb99:78da
203.153.120.219 0:0:0:0:0:ffff:cb99:78db
203.153.120.220 0:0:0:0:0:ffff:cb99:78dc
203.153.120.221 0:0:0:0:0:ffff:cb99:78dd
203.153.120.222 0:0:0:0:0:ffff:cb99:78de
203.153.120.223 0:0:0:0:0:ffff:cb99:78df
203.153.120.224 0:0:0:0:0:ffff:cb99:78e0
203.153.120.225 0:0:0:0:0:ffff:cb99:78e1
203.153.120.226 0:0:0:0:0:ffff:cb99:78e2
203.153.120.227 0:0:0:0:0:ffff:cb99:78e3
203.153.120.228 0:0:0:0:0:ffff:cb99:78e4
203.153.120.229 0:0:0:0:0:ffff:cb99:78e5
203.153.120.230 0:0:0:0:0:ffff:cb99:78e6
203.153.120.231 0:0:0:0:0:ffff:cb99:78e7
203.153.120.232 0:0:0:0:0:ffff:cb99:78e8
203.153.120.233 0:0:0:0:0:ffff:cb99:78e9
203.153.120.234 0:0:0:0:0:ffff:cb99:78ea
203.153.120.235 0:0:0:0:0:ffff:cb99:78eb
203.153.120.236 0:0:0:0:0:ffff:cb99:78ec
203.153.120.237 0:0:0:0:0:ffff:cb99:78ed
203.153.120.238 0:0:0:0:0:ffff:cb99:78ee
203.153.120.239 0:0:0:0:0:ffff:cb99:78ef
203.153.120.240 0:0:0:0:0:ffff:cb99:78f0
203.153.120.241 0:0:0:0:0:ffff:cb99:78f1
203.153.120.242 0:0:0:0:0:ffff:cb99:78f2
203.153.120.243 0:0:0:0:0:ffff:cb99:78f3
203.153.120.244 0:0:0:0:0:ffff:cb99:78f4
203.153.120.245 0:0:0:0:0:ffff:cb99:78f5
203.153.120.246 0:0:0:0:0:ffff:cb99:78f6
203.153.120.247 0:0:0:0:0:ffff:cb99:78f7
203.153.120.248 0:0:0:0:0:ffff:cb99:78f8
203.153.120.249 0:0:0:0:0:ffff:cb99:78f9
203.153.120.250 0:0:0:0:0:ffff:cb99:78fa
203.153.120.251 0:0:0:0:0:ffff:cb99:78fb
203.153.120.252 0:0:0:0:0:ffff:cb99:78fc
203.153.120.253 0:0:0:0:0:ffff:cb99:78fd
203.153.120.254 0:0:0:0:0:ffff:cb99:78fe
203.153.120.255 0:0:0:0:0:ffff:cb99:78ff


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.