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
66.80.56.1 0:0:0:0:0:ffff:4250:3801
66.80.56.2 0:0:0:0:0:ffff:4250:3802
66.80.56.3 0:0:0:0:0:ffff:4250:3803
66.80.56.4 0:0:0:0:0:ffff:4250:3804
66.80.56.5 0:0:0:0:0:ffff:4250:3805
66.80.56.6 0:0:0:0:0:ffff:4250:3806
66.80.56.7 0:0:0:0:0:ffff:4250:3807
66.80.56.8 0:0:0:0:0:ffff:4250:3808
66.80.56.9 0:0:0:0:0:ffff:4250:3809
66.80.56.10 0:0:0:0:0:ffff:4250:380a
66.80.56.11 0:0:0:0:0:ffff:4250:380b
66.80.56.12 0:0:0:0:0:ffff:4250:380c
66.80.56.13 0:0:0:0:0:ffff:4250:380d
66.80.56.14 0:0:0:0:0:ffff:4250:380e
66.80.56.15 0:0:0:0:0:ffff:4250:380f
66.80.56.16 0:0:0:0:0:ffff:4250:3810
66.80.56.17 0:0:0:0:0:ffff:4250:3811
66.80.56.18 0:0:0:0:0:ffff:4250:3812
66.80.56.19 0:0:0:0:0:ffff:4250:3813
66.80.56.20 0:0:0:0:0:ffff:4250:3814
66.80.56.21 0:0:0:0:0:ffff:4250:3815
66.80.56.22 0:0:0:0:0:ffff:4250:3816
66.80.56.23 0:0:0:0:0:ffff:4250:3817
66.80.56.24 0:0:0:0:0:ffff:4250:3818
66.80.56.25 0:0:0:0:0:ffff:4250:3819
66.80.56.26 0:0:0:0:0:ffff:4250:381a
66.80.56.27 0:0:0:0:0:ffff:4250:381b
66.80.56.28 0:0:0:0:0:ffff:4250:381c
66.80.56.29 0:0:0:0:0:ffff:4250:381d
66.80.56.30 0:0:0:0:0:ffff:4250:381e
66.80.56.31 0:0:0:0:0:ffff:4250:381f
66.80.56.32 0:0:0:0:0:ffff:4250:3820
66.80.56.33 0:0:0:0:0:ffff:4250:3821
66.80.56.34 0:0:0:0:0:ffff:4250:3822
66.80.56.35 0:0:0:0:0:ffff:4250:3823
66.80.56.36 0:0:0:0:0:ffff:4250:3824
66.80.56.37 0:0:0:0:0:ffff:4250:3825
66.80.56.38 0:0:0:0:0:ffff:4250:3826
66.80.56.39 0:0:0:0:0:ffff:4250:3827
66.80.56.40 0:0:0:0:0:ffff:4250:3828
66.80.56.41 0:0:0:0:0:ffff:4250:3829
66.80.56.42 0:0:0:0:0:ffff:4250:382a
66.80.56.43 0:0:0:0:0:ffff:4250:382b
66.80.56.44 0:0:0:0:0:ffff:4250:382c
66.80.56.45 0:0:0:0:0:ffff:4250:382d
66.80.56.46 0:0:0:0:0:ffff:4250:382e
66.80.56.47 0:0:0:0:0:ffff:4250:382f
66.80.56.48 0:0:0:0:0:ffff:4250:3830
66.80.56.49 0:0:0:0:0:ffff:4250:3831
66.80.56.50 0:0:0:0:0:ffff:4250:3832
66.80.56.51 0:0:0:0:0:ffff:4250:3833
66.80.56.52 0:0:0:0:0:ffff:4250:3834
66.80.56.53 0:0:0:0:0:ffff:4250:3835
66.80.56.54 0:0:0:0:0:ffff:4250:3836
66.80.56.55 0:0:0:0:0:ffff:4250:3837
66.80.56.56 0:0:0:0:0:ffff:4250:3838
66.80.56.57 0:0:0:0:0:ffff:4250:3839
66.80.56.58 0:0:0:0:0:ffff:4250:383a
66.80.56.59 0:0:0:0:0:ffff:4250:383b
66.80.56.60 0:0:0:0:0:ffff:4250:383c


66.80.56.61 0:0:0:0:0:ffff:4250:383d
66.80.56.62 0:0:0:0:0:ffff:4250:383e
66.80.56.63 0:0:0:0:0:ffff:4250:383f
66.80.56.64 0:0:0:0:0:ffff:4250:3840
66.80.56.65 0:0:0:0:0:ffff:4250:3841
66.80.56.66 0:0:0:0:0:ffff:4250:3842
66.80.56.67 0:0:0:0:0:ffff:4250:3843
66.80.56.68 0:0:0:0:0:ffff:4250:3844
66.80.56.69 0:0:0:0:0:ffff:4250:3845
66.80.56.70 0:0:0:0:0:ffff:4250:3846
66.80.56.71 0:0:0:0:0:ffff:4250:3847
66.80.56.72 0:0:0:0:0:ffff:4250:3848
66.80.56.73 0:0:0:0:0:ffff:4250:3849
66.80.56.74 0:0:0:0:0:ffff:4250:384a
66.80.56.75 0:0:0:0:0:ffff:4250:384b
66.80.56.76 0:0:0:0:0:ffff:4250:384c
66.80.56.77 0:0:0:0:0:ffff:4250:384d
66.80.56.78 0:0:0:0:0:ffff:4250:384e
66.80.56.79 0:0:0:0:0:ffff:4250:384f
66.80.56.80 0:0:0:0:0:ffff:4250:3850
66.80.56.81 0:0:0:0:0:ffff:4250:3851
66.80.56.82 0:0:0:0:0:ffff:4250:3852
66.80.56.83 0:0:0:0:0:ffff:4250:3853
66.80.56.84 0:0:0:0:0:ffff:4250:3854
66.80.56.85 0:0:0:0:0:ffff:4250:3855
66.80.56.86 0:0:0:0:0:ffff:4250:3856
66.80.56.87 0:0:0:0:0:ffff:4250:3857
66.80.56.88 0:0:0:0:0:ffff:4250:3858
66.80.56.89 0:0:0:0:0:ffff:4250:3859
66.80.56.90 0:0:0:0:0:ffff:4250:385a
66.80.56.91 0:0:0:0:0:ffff:4250:385b
66.80.56.92 0:0:0:0:0:ffff:4250:385c
66.80.56.93 0:0:0:0:0:ffff:4250:385d
66.80.56.94 0:0:0:0:0:ffff:4250:385e
66.80.56.95 0:0:0:0:0:ffff:4250:385f
66.80.56.96 0:0:0:0:0:ffff:4250:3860
66.80.56.97 0:0:0:0:0:ffff:4250:3861
66.80.56.98 0:0:0:0:0:ffff:4250:3862
66.80.56.99 0:0:0:0:0:ffff:4250:3863
66.80.56.100 0:0:0:0:0:ffff:4250:3864
66.80.56.101 0:0:0:0:0:ffff:4250:3865
66.80.56.102 0:0:0:0:0:ffff:4250:3866
66.80.56.103 0:0:0:0:0:ffff:4250:3867
66.80.56.104 0:0:0:0:0:ffff:4250:3868
66.80.56.105 0:0:0:0:0:ffff:4250:3869
66.80.56.106 0:0:0:0:0:ffff:4250:386a
66.80.56.107 0:0:0:0:0:ffff:4250:386b
66.80.56.108 0:0:0:0:0:ffff:4250:386c
66.80.56.109 0:0:0:0:0:ffff:4250:386d
66.80.56.110 0:0:0:0:0:ffff:4250:386e
66.80.56.111 0:0:0:0:0:ffff:4250:386f
66.80.56.112 0:0:0:0:0:ffff:4250:3870
66.80.56.113 0:0:0:0:0:ffff:4250:3871
66.80.56.114 0:0:0:0:0:ffff:4250:3872
66.80.56.115 0:0:0:0:0:ffff:4250:3873
66.80.56.116 0:0:0:0:0:ffff:4250:3874
66.80.56.117 0:0:0:0:0:ffff:4250:3875
66.80.56.118 0:0:0:0:0:ffff:4250:3876
66.80.56.119 0:0:0:0:0:ffff:4250:3877
66.80.56.120 0:0:0:0:0:ffff:4250:3878


66.80.56.121 0:0:0:0:0:ffff:4250:3879
66.80.56.122 0:0:0:0:0:ffff:4250:387a
66.80.56.123 0:0:0:0:0:ffff:4250:387b
66.80.56.124 0:0:0:0:0:ffff:4250:387c
66.80.56.125 0:0:0:0:0:ffff:4250:387d
66.80.56.126 0:0:0:0:0:ffff:4250:387e
66.80.56.127 0:0:0:0:0:ffff:4250:387f
66.80.56.128 0:0:0:0:0:ffff:4250:3880
66.80.56.129 0:0:0:0:0:ffff:4250:3881
66.80.56.130 0:0:0:0:0:ffff:4250:3882
66.80.56.131 0:0:0:0:0:ffff:4250:3883
66.80.56.132 0:0:0:0:0:ffff:4250:3884
66.80.56.133 0:0:0:0:0:ffff:4250:3885
66.80.56.134 0:0:0:0:0:ffff:4250:3886
66.80.56.135 0:0:0:0:0:ffff:4250:3887
66.80.56.136 0:0:0:0:0:ffff:4250:3888
66.80.56.137 0:0:0:0:0:ffff:4250:3889
66.80.56.138 0:0:0:0:0:ffff:4250:388a
66.80.56.139 0:0:0:0:0:ffff:4250:388b
66.80.56.140 0:0:0:0:0:ffff:4250:388c
66.80.56.141 0:0:0:0:0:ffff:4250:388d
66.80.56.142 0:0:0:0:0:ffff:4250:388e
66.80.56.143 0:0:0:0:0:ffff:4250:388f
66.80.56.144 0:0:0:0:0:ffff:4250:3890
66.80.56.145 0:0:0:0:0:ffff:4250:3891
66.80.56.146 0:0:0:0:0:ffff:4250:3892
66.80.56.147 0:0:0:0:0:ffff:4250:3893
66.80.56.148 0:0:0:0:0:ffff:4250:3894
66.80.56.149 0:0:0:0:0:ffff:4250:3895
66.80.56.150 0:0:0:0:0:ffff:4250:3896
66.80.56.151 0:0:0:0:0:ffff:4250:3897
66.80.56.152 0:0:0:0:0:ffff:4250:3898
66.80.56.153 0:0:0:0:0:ffff:4250:3899
66.80.56.154 0:0:0:0:0:ffff:4250:389a
66.80.56.155 0:0:0:0:0:ffff:4250:389b
66.80.56.156 0:0:0:0:0:ffff:4250:389c
66.80.56.157 0:0:0:0:0:ffff:4250:389d
66.80.56.158 0:0:0:0:0:ffff:4250:389e
66.80.56.159 0:0:0:0:0:ffff:4250:389f
66.80.56.160 0:0:0:0:0:ffff:4250:38a0
66.80.56.161 0:0:0:0:0:ffff:4250:38a1
66.80.56.162 0:0:0:0:0:ffff:4250:38a2
66.80.56.163 0:0:0:0:0:ffff:4250:38a3
66.80.56.164 0:0:0:0:0:ffff:4250:38a4
66.80.56.165 0:0:0:0:0:ffff:4250:38a5
66.80.56.166 0:0:0:0:0:ffff:4250:38a6
66.80.56.167 0:0:0:0:0:ffff:4250:38a7
66.80.56.168 0:0:0:0:0:ffff:4250:38a8
66.80.56.169 0:0:0:0:0:ffff:4250:38a9
66.80.56.170 0:0:0:0:0:ffff:4250:38aa
66.80.56.171 0:0:0:0:0:ffff:4250:38ab
66.80.56.172 0:0:0:0:0:ffff:4250:38ac
66.80.56.173 0:0:0:0:0:ffff:4250:38ad
66.80.56.174 0:0:0:0:0:ffff:4250:38ae
66.80.56.175 0:0:0:0:0:ffff:4250:38af
66.80.56.176 0:0:0:0:0:ffff:4250:38b0
66.80.56.177 0:0:0:0:0:ffff:4250:38b1
66.80.56.178 0:0:0:0:0:ffff:4250:38b2
66.80.56.179 0:0:0:0:0:ffff:4250:38b3
66.80.56.180 0:0:0:0:0:ffff:4250:38b4


66.80.56.181 0:0:0:0:0:ffff:4250:38b5
66.80.56.182 0:0:0:0:0:ffff:4250:38b6
66.80.56.183 0:0:0:0:0:ffff:4250:38b7
66.80.56.184 0:0:0:0:0:ffff:4250:38b8
66.80.56.185 0:0:0:0:0:ffff:4250:38b9
66.80.56.186 0:0:0:0:0:ffff:4250:38ba
66.80.56.187 0:0:0:0:0:ffff:4250:38bb
66.80.56.188 0:0:0:0:0:ffff:4250:38bc
66.80.56.189 0:0:0:0:0:ffff:4250:38bd
66.80.56.190 0:0:0:0:0:ffff:4250:38be
66.80.56.191 0:0:0:0:0:ffff:4250:38bf
66.80.56.192 0:0:0:0:0:ffff:4250:38c0
66.80.56.193 0:0:0:0:0:ffff:4250:38c1
66.80.56.194 0:0:0:0:0:ffff:4250:38c2
66.80.56.195 0:0:0:0:0:ffff:4250:38c3
66.80.56.196 0:0:0:0:0:ffff:4250:38c4
66.80.56.197 0:0:0:0:0:ffff:4250:38c5
66.80.56.198 0:0:0:0:0:ffff:4250:38c6
66.80.56.199 0:0:0:0:0:ffff:4250:38c7
66.80.56.200 0:0:0:0:0:ffff:4250:38c8
66.80.56.201 0:0:0:0:0:ffff:4250:38c9
66.80.56.202 0:0:0:0:0:ffff:4250:38ca
66.80.56.203 0:0:0:0:0:ffff:4250:38cb
66.80.56.204 0:0:0:0:0:ffff:4250:38cc
66.80.56.205 0:0:0:0:0:ffff:4250:38cd
66.80.56.206 0:0:0:0:0:ffff:4250:38ce
66.80.56.207 0:0:0:0:0:ffff:4250:38cf
66.80.56.208 0:0:0:0:0:ffff:4250:38d0
66.80.56.209 0:0:0:0:0:ffff:4250:38d1
66.80.56.210 0:0:0:0:0:ffff:4250:38d2
66.80.56.211 0:0:0:0:0:ffff:4250:38d3
66.80.56.212 0:0:0:0:0:ffff:4250:38d4
66.80.56.213 0:0:0:0:0:ffff:4250:38d5
66.80.56.214 0:0:0:0:0:ffff:4250:38d6
66.80.56.215 0:0:0:0:0:ffff:4250:38d7
66.80.56.216 0:0:0:0:0:ffff:4250:38d8
66.80.56.217 0:0:0:0:0:ffff:4250:38d9
66.80.56.218 0:0:0:0:0:ffff:4250:38da
66.80.56.219 0:0:0:0:0:ffff:4250:38db
66.80.56.220 0:0:0:0:0:ffff:4250:38dc
66.80.56.221 0:0:0:0:0:ffff:4250:38dd
66.80.56.222 0:0:0:0:0:ffff:4250:38de
66.80.56.223 0:0:0:0:0:ffff:4250:38df
66.80.56.224 0:0:0:0:0:ffff:4250:38e0
66.80.56.225 0:0:0:0:0:ffff:4250:38e1
66.80.56.226 0:0:0:0:0:ffff:4250:38e2
66.80.56.227 0:0:0:0:0:ffff:4250:38e3
66.80.56.228 0:0:0:0:0:ffff:4250:38e4
66.80.56.229 0:0:0:0:0:ffff:4250:38e5
66.80.56.230 0:0:0:0:0:ffff:4250:38e6
66.80.56.231 0:0:0:0:0:ffff:4250:38e7
66.80.56.232 0:0:0:0:0:ffff:4250:38e8
66.80.56.233 0:0:0:0:0:ffff:4250:38e9
66.80.56.234 0:0:0:0:0:ffff:4250:38ea
66.80.56.235 0:0:0:0:0:ffff:4250:38eb
66.80.56.236 0:0:0:0:0:ffff:4250:38ec
66.80.56.237 0:0:0:0:0:ffff:4250:38ed
66.80.56.238 0:0:0:0:0:ffff:4250:38ee
66.80.56.239 0:0:0:0:0:ffff:4250:38ef
66.80.56.240 0:0:0:0:0:ffff:4250:38f0
66.80.56.241 0:0:0:0:0:ffff:4250:38f1
66.80.56.242 0:0:0:0:0:ffff:4250:38f2
66.80.56.243 0:0:0:0:0:ffff:4250:38f3
66.80.56.244 0:0:0:0:0:ffff:4250:38f4
66.80.56.245 0:0:0:0:0:ffff:4250:38f5
66.80.56.246 0:0:0:0:0:ffff:4250:38f6
66.80.56.247 0:0:0:0:0:ffff:4250:38f7
66.80.56.248 0:0:0:0:0:ffff:4250:38f8
66.80.56.249 0:0:0:0:0:ffff:4250:38f9
66.80.56.250 0:0:0:0:0:ffff:4250:38fa
66.80.56.251 0:0:0:0:0:ffff:4250:38fb
66.80.56.252 0:0:0:0:0:ffff:4250:38fc
66.80.56.253 0:0:0:0:0:ffff:4250:38fd
66.80.56.254 0:0:0:0:0:ffff:4250:38fe
66.80.56.255 0:0:0:0:0:ffff:4250:38ff


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.