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
144.21.56.1 0:0:0:0:0:ffff:9015:3801
144.21.56.2 0:0:0:0:0:ffff:9015:3802
144.21.56.3 0:0:0:0:0:ffff:9015:3803
144.21.56.4 0:0:0:0:0:ffff:9015:3804
144.21.56.5 0:0:0:0:0:ffff:9015:3805
144.21.56.6 0:0:0:0:0:ffff:9015:3806
144.21.56.7 0:0:0:0:0:ffff:9015:3807
144.21.56.8 0:0:0:0:0:ffff:9015:3808
144.21.56.9 0:0:0:0:0:ffff:9015:3809
144.21.56.10 0:0:0:0:0:ffff:9015:380a
144.21.56.11 0:0:0:0:0:ffff:9015:380b
144.21.56.12 0:0:0:0:0:ffff:9015:380c
144.21.56.13 0:0:0:0:0:ffff:9015:380d
144.21.56.14 0:0:0:0:0:ffff:9015:380e
144.21.56.15 0:0:0:0:0:ffff:9015:380f
144.21.56.16 0:0:0:0:0:ffff:9015:3810
144.21.56.17 0:0:0:0:0:ffff:9015:3811
144.21.56.18 0:0:0:0:0:ffff:9015:3812
144.21.56.19 0:0:0:0:0:ffff:9015:3813
144.21.56.20 0:0:0:0:0:ffff:9015:3814
144.21.56.21 0:0:0:0:0:ffff:9015:3815
144.21.56.22 0:0:0:0:0:ffff:9015:3816
144.21.56.23 0:0:0:0:0:ffff:9015:3817
144.21.56.24 0:0:0:0:0:ffff:9015:3818
144.21.56.25 0:0:0:0:0:ffff:9015:3819
144.21.56.26 0:0:0:0:0:ffff:9015:381a
144.21.56.27 0:0:0:0:0:ffff:9015:381b
144.21.56.28 0:0:0:0:0:ffff:9015:381c
144.21.56.29 0:0:0:0:0:ffff:9015:381d
144.21.56.30 0:0:0:0:0:ffff:9015:381e
144.21.56.31 0:0:0:0:0:ffff:9015:381f
144.21.56.32 0:0:0:0:0:ffff:9015:3820
144.21.56.33 0:0:0:0:0:ffff:9015:3821
144.21.56.34 0:0:0:0:0:ffff:9015:3822
144.21.56.35 0:0:0:0:0:ffff:9015:3823
144.21.56.36 0:0:0:0:0:ffff:9015:3824
144.21.56.37 0:0:0:0:0:ffff:9015:3825
144.21.56.38 0:0:0:0:0:ffff:9015:3826
144.21.56.39 0:0:0:0:0:ffff:9015:3827
144.21.56.40 0:0:0:0:0:ffff:9015:3828
144.21.56.41 0:0:0:0:0:ffff:9015:3829
144.21.56.42 0:0:0:0:0:ffff:9015:382a
144.21.56.43 0:0:0:0:0:ffff:9015:382b
144.21.56.44 0:0:0:0:0:ffff:9015:382c
144.21.56.45 0:0:0:0:0:ffff:9015:382d
144.21.56.46 0:0:0:0:0:ffff:9015:382e
144.21.56.47 0:0:0:0:0:ffff:9015:382f
144.21.56.48 0:0:0:0:0:ffff:9015:3830
144.21.56.49 0:0:0:0:0:ffff:9015:3831
144.21.56.50 0:0:0:0:0:ffff:9015:3832
144.21.56.51 0:0:0:0:0:ffff:9015:3833
144.21.56.52 0:0:0:0:0:ffff:9015:3834
144.21.56.53 0:0:0:0:0:ffff:9015:3835
144.21.56.54 0:0:0:0:0:ffff:9015:3836
144.21.56.55 0:0:0:0:0:ffff:9015:3837
144.21.56.56 0:0:0:0:0:ffff:9015:3838
144.21.56.57 0:0:0:0:0:ffff:9015:3839
144.21.56.58 0:0:0:0:0:ffff:9015:383a
144.21.56.59 0:0:0:0:0:ffff:9015:383b
144.21.56.60 0:0:0:0:0:ffff:9015:383c


144.21.56.61 0:0:0:0:0:ffff:9015:383d
144.21.56.62 0:0:0:0:0:ffff:9015:383e
144.21.56.63 0:0:0:0:0:ffff:9015:383f
144.21.56.64 0:0:0:0:0:ffff:9015:3840
144.21.56.65 0:0:0:0:0:ffff:9015:3841
144.21.56.66 0:0:0:0:0:ffff:9015:3842
144.21.56.67 0:0:0:0:0:ffff:9015:3843
144.21.56.68 0:0:0:0:0:ffff:9015:3844
144.21.56.69 0:0:0:0:0:ffff:9015:3845
144.21.56.70 0:0:0:0:0:ffff:9015:3846
144.21.56.71 0:0:0:0:0:ffff:9015:3847
144.21.56.72 0:0:0:0:0:ffff:9015:3848
144.21.56.73 0:0:0:0:0:ffff:9015:3849
144.21.56.74 0:0:0:0:0:ffff:9015:384a
144.21.56.75 0:0:0:0:0:ffff:9015:384b
144.21.56.76 0:0:0:0:0:ffff:9015:384c
144.21.56.77 0:0:0:0:0:ffff:9015:384d
144.21.56.78 0:0:0:0:0:ffff:9015:384e
144.21.56.79 0:0:0:0:0:ffff:9015:384f
144.21.56.80 0:0:0:0:0:ffff:9015:3850
144.21.56.81 0:0:0:0:0:ffff:9015:3851
144.21.56.82 0:0:0:0:0:ffff:9015:3852
144.21.56.83 0:0:0:0:0:ffff:9015:3853
144.21.56.84 0:0:0:0:0:ffff:9015:3854
144.21.56.85 0:0:0:0:0:ffff:9015:3855
144.21.56.86 0:0:0:0:0:ffff:9015:3856
144.21.56.87 0:0:0:0:0:ffff:9015:3857
144.21.56.88 0:0:0:0:0:ffff:9015:3858
144.21.56.89 0:0:0:0:0:ffff:9015:3859
144.21.56.90 0:0:0:0:0:ffff:9015:385a
144.21.56.91 0:0:0:0:0:ffff:9015:385b
144.21.56.92 0:0:0:0:0:ffff:9015:385c
144.21.56.93 0:0:0:0:0:ffff:9015:385d
144.21.56.94 0:0:0:0:0:ffff:9015:385e
144.21.56.95 0:0:0:0:0:ffff:9015:385f
144.21.56.96 0:0:0:0:0:ffff:9015:3860
144.21.56.97 0:0:0:0:0:ffff:9015:3861
144.21.56.98 0:0:0:0:0:ffff:9015:3862
144.21.56.99 0:0:0:0:0:ffff:9015:3863
144.21.56.100 0:0:0:0:0:ffff:9015:3864
144.21.56.101 0:0:0:0:0:ffff:9015:3865
144.21.56.102 0:0:0:0:0:ffff:9015:3866
144.21.56.103 0:0:0:0:0:ffff:9015:3867
144.21.56.104 0:0:0:0:0:ffff:9015:3868
144.21.56.105 0:0:0:0:0:ffff:9015:3869
144.21.56.106 0:0:0:0:0:ffff:9015:386a
144.21.56.107 0:0:0:0:0:ffff:9015:386b
144.21.56.108 0:0:0:0:0:ffff:9015:386c
144.21.56.109 0:0:0:0:0:ffff:9015:386d
144.21.56.110 0:0:0:0:0:ffff:9015:386e
144.21.56.111 0:0:0:0:0:ffff:9015:386f
144.21.56.112 0:0:0:0:0:ffff:9015:3870
144.21.56.113 0:0:0:0:0:ffff:9015:3871
144.21.56.114 0:0:0:0:0:ffff:9015:3872
144.21.56.115 0:0:0:0:0:ffff:9015:3873
144.21.56.116 0:0:0:0:0:ffff:9015:3874
144.21.56.117 0:0:0:0:0:ffff:9015:3875
144.21.56.118 0:0:0:0:0:ffff:9015:3876
144.21.56.119 0:0:0:0:0:ffff:9015:3877
144.21.56.120 0:0:0:0:0:ffff:9015:3878


144.21.56.121 0:0:0:0:0:ffff:9015:3879
144.21.56.122 0:0:0:0:0:ffff:9015:387a
144.21.56.123 0:0:0:0:0:ffff:9015:387b
144.21.56.124 0:0:0:0:0:ffff:9015:387c
144.21.56.125 0:0:0:0:0:ffff:9015:387d
144.21.56.126 0:0:0:0:0:ffff:9015:387e
144.21.56.127 0:0:0:0:0:ffff:9015:387f
144.21.56.128 0:0:0:0:0:ffff:9015:3880
144.21.56.129 0:0:0:0:0:ffff:9015:3881
144.21.56.130 0:0:0:0:0:ffff:9015:3882
144.21.56.131 0:0:0:0:0:ffff:9015:3883
144.21.56.132 0:0:0:0:0:ffff:9015:3884
144.21.56.133 0:0:0:0:0:ffff:9015:3885
144.21.56.134 0:0:0:0:0:ffff:9015:3886
144.21.56.135 0:0:0:0:0:ffff:9015:3887
144.21.56.136 0:0:0:0:0:ffff:9015:3888
144.21.56.137 0:0:0:0:0:ffff:9015:3889
144.21.56.138 0:0:0:0:0:ffff:9015:388a
144.21.56.139 0:0:0:0:0:ffff:9015:388b
144.21.56.140 0:0:0:0:0:ffff:9015:388c
144.21.56.141 0:0:0:0:0:ffff:9015:388d
144.21.56.142 0:0:0:0:0:ffff:9015:388e
144.21.56.143 0:0:0:0:0:ffff:9015:388f
144.21.56.144 0:0:0:0:0:ffff:9015:3890
144.21.56.145 0:0:0:0:0:ffff:9015:3891
144.21.56.146 0:0:0:0:0:ffff:9015:3892
144.21.56.147 0:0:0:0:0:ffff:9015:3893
144.21.56.148 0:0:0:0:0:ffff:9015:3894
144.21.56.149 0:0:0:0:0:ffff:9015:3895
144.21.56.150 0:0:0:0:0:ffff:9015:3896
144.21.56.151 0:0:0:0:0:ffff:9015:3897
144.21.56.152 0:0:0:0:0:ffff:9015:3898
144.21.56.153 0:0:0:0:0:ffff:9015:3899
144.21.56.154 0:0:0:0:0:ffff:9015:389a
144.21.56.155 0:0:0:0:0:ffff:9015:389b
144.21.56.156 0:0:0:0:0:ffff:9015:389c
144.21.56.157 0:0:0:0:0:ffff:9015:389d
144.21.56.158 0:0:0:0:0:ffff:9015:389e
144.21.56.159 0:0:0:0:0:ffff:9015:389f
144.21.56.160 0:0:0:0:0:ffff:9015:38a0
144.21.56.161 0:0:0:0:0:ffff:9015:38a1
144.21.56.162 0:0:0:0:0:ffff:9015:38a2
144.21.56.163 0:0:0:0:0:ffff:9015:38a3
144.21.56.164 0:0:0:0:0:ffff:9015:38a4
144.21.56.165 0:0:0:0:0:ffff:9015:38a5
144.21.56.166 0:0:0:0:0:ffff:9015:38a6
144.21.56.167 0:0:0:0:0:ffff:9015:38a7
144.21.56.168 0:0:0:0:0:ffff:9015:38a8
144.21.56.169 0:0:0:0:0:ffff:9015:38a9
144.21.56.170 0:0:0:0:0:ffff:9015:38aa
144.21.56.171 0:0:0:0:0:ffff:9015:38ab
144.21.56.172 0:0:0:0:0:ffff:9015:38ac
144.21.56.173 0:0:0:0:0:ffff:9015:38ad
144.21.56.174 0:0:0:0:0:ffff:9015:38ae
144.21.56.175 0:0:0:0:0:ffff:9015:38af
144.21.56.176 0:0:0:0:0:ffff:9015:38b0
144.21.56.177 0:0:0:0:0:ffff:9015:38b1
144.21.56.178 0:0:0:0:0:ffff:9015:38b2
144.21.56.179 0:0:0:0:0:ffff:9015:38b3
144.21.56.180 0:0:0:0:0:ffff:9015:38b4


144.21.56.181 0:0:0:0:0:ffff:9015:38b5
144.21.56.182 0:0:0:0:0:ffff:9015:38b6
144.21.56.183 0:0:0:0:0:ffff:9015:38b7
144.21.56.184 0:0:0:0:0:ffff:9015:38b8
144.21.56.185 0:0:0:0:0:ffff:9015:38b9
144.21.56.186 0:0:0:0:0:ffff:9015:38ba
144.21.56.187 0:0:0:0:0:ffff:9015:38bb
144.21.56.188 0:0:0:0:0:ffff:9015:38bc
144.21.56.189 0:0:0:0:0:ffff:9015:38bd
144.21.56.190 0:0:0:0:0:ffff:9015:38be
144.21.56.191 0:0:0:0:0:ffff:9015:38bf
144.21.56.192 0:0:0:0:0:ffff:9015:38c0
144.21.56.193 0:0:0:0:0:ffff:9015:38c1
144.21.56.194 0:0:0:0:0:ffff:9015:38c2
144.21.56.195 0:0:0:0:0:ffff:9015:38c3
144.21.56.196 0:0:0:0:0:ffff:9015:38c4
144.21.56.197 0:0:0:0:0:ffff:9015:38c5
144.21.56.198 0:0:0:0:0:ffff:9015:38c6
144.21.56.199 0:0:0:0:0:ffff:9015:38c7
144.21.56.200 0:0:0:0:0:ffff:9015:38c8
144.21.56.201 0:0:0:0:0:ffff:9015:38c9
144.21.56.202 0:0:0:0:0:ffff:9015:38ca
144.21.56.203 0:0:0:0:0:ffff:9015:38cb
144.21.56.204 0:0:0:0:0:ffff:9015:38cc
144.21.56.205 0:0:0:0:0:ffff:9015:38cd
144.21.56.206 0:0:0:0:0:ffff:9015:38ce
144.21.56.207 0:0:0:0:0:ffff:9015:38cf
144.21.56.208 0:0:0:0:0:ffff:9015:38d0
144.21.56.209 0:0:0:0:0:ffff:9015:38d1
144.21.56.210 0:0:0:0:0:ffff:9015:38d2
144.21.56.211 0:0:0:0:0:ffff:9015:38d3
144.21.56.212 0:0:0:0:0:ffff:9015:38d4
144.21.56.213 0:0:0:0:0:ffff:9015:38d5
144.21.56.214 0:0:0:0:0:ffff:9015:38d6
144.21.56.215 0:0:0:0:0:ffff:9015:38d7
144.21.56.216 0:0:0:0:0:ffff:9015:38d8
144.21.56.217 0:0:0:0:0:ffff:9015:38d9
144.21.56.218 0:0:0:0:0:ffff:9015:38da
144.21.56.219 0:0:0:0:0:ffff:9015:38db
144.21.56.220 0:0:0:0:0:ffff:9015:38dc
144.21.56.221 0:0:0:0:0:ffff:9015:38dd
144.21.56.222 0:0:0:0:0:ffff:9015:38de
144.21.56.223 0:0:0:0:0:ffff:9015:38df
144.21.56.224 0:0:0:0:0:ffff:9015:38e0
144.21.56.225 0:0:0:0:0:ffff:9015:38e1
144.21.56.226 0:0:0:0:0:ffff:9015:38e2
144.21.56.227 0:0:0:0:0:ffff:9015:38e3
144.21.56.228 0:0:0:0:0:ffff:9015:38e4
144.21.56.229 0:0:0:0:0:ffff:9015:38e5
144.21.56.230 0:0:0:0:0:ffff:9015:38e6
144.21.56.231 0:0:0:0:0:ffff:9015:38e7
144.21.56.232 0:0:0:0:0:ffff:9015:38e8
144.21.56.233 0:0:0:0:0:ffff:9015:38e9
144.21.56.234 0:0:0:0:0:ffff:9015:38ea
144.21.56.235 0:0:0:0:0:ffff:9015:38eb
144.21.56.236 0:0:0:0:0:ffff:9015:38ec
144.21.56.237 0:0:0:0:0:ffff:9015:38ed
144.21.56.238 0:0:0:0:0:ffff:9015:38ee
144.21.56.239 0:0:0:0:0:ffff:9015:38ef
144.21.56.240 0:0:0:0:0:ffff:9015:38f0
144.21.56.241 0:0:0:0:0:ffff:9015:38f1
144.21.56.242 0:0:0:0:0:ffff:9015:38f2
144.21.56.243 0:0:0:0:0:ffff:9015:38f3
144.21.56.244 0:0:0:0:0:ffff:9015:38f4
144.21.56.245 0:0:0:0:0:ffff:9015:38f5
144.21.56.246 0:0:0:0:0:ffff:9015:38f6
144.21.56.247 0:0:0:0:0:ffff:9015:38f7
144.21.56.248 0:0:0:0:0:ffff:9015:38f8
144.21.56.249 0:0:0:0:0:ffff:9015:38f9
144.21.56.250 0:0:0:0:0:ffff:9015:38fa
144.21.56.251 0:0:0:0:0:ffff:9015:38fb
144.21.56.252 0:0:0:0:0:ffff:9015:38fc
144.21.56.253 0:0:0:0:0:ffff:9015:38fd
144.21.56.254 0:0:0:0:0:ffff:9015:38fe
144.21.56.255 0:0:0:0:0:ffff:9015:38ff


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.