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
28.66.55.1 0:0:0:0:0:ffff:1c42:3701
28.66.55.2 0:0:0:0:0:ffff:1c42:3702
28.66.55.3 0:0:0:0:0:ffff:1c42:3703
28.66.55.4 0:0:0:0:0:ffff:1c42:3704
28.66.55.5 0:0:0:0:0:ffff:1c42:3705
28.66.55.6 0:0:0:0:0:ffff:1c42:3706
28.66.55.7 0:0:0:0:0:ffff:1c42:3707
28.66.55.8 0:0:0:0:0:ffff:1c42:3708
28.66.55.9 0:0:0:0:0:ffff:1c42:3709
28.66.55.10 0:0:0:0:0:ffff:1c42:370a
28.66.55.11 0:0:0:0:0:ffff:1c42:370b
28.66.55.12 0:0:0:0:0:ffff:1c42:370c
28.66.55.13 0:0:0:0:0:ffff:1c42:370d
28.66.55.14 0:0:0:0:0:ffff:1c42:370e
28.66.55.15 0:0:0:0:0:ffff:1c42:370f
28.66.55.16 0:0:0:0:0:ffff:1c42:3710
28.66.55.17 0:0:0:0:0:ffff:1c42:3711
28.66.55.18 0:0:0:0:0:ffff:1c42:3712
28.66.55.19 0:0:0:0:0:ffff:1c42:3713
28.66.55.20 0:0:0:0:0:ffff:1c42:3714
28.66.55.21 0:0:0:0:0:ffff:1c42:3715
28.66.55.22 0:0:0:0:0:ffff:1c42:3716
28.66.55.23 0:0:0:0:0:ffff:1c42:3717
28.66.55.24 0:0:0:0:0:ffff:1c42:3718
28.66.55.25 0:0:0:0:0:ffff:1c42:3719
28.66.55.26 0:0:0:0:0:ffff:1c42:371a
28.66.55.27 0:0:0:0:0:ffff:1c42:371b
28.66.55.28 0:0:0:0:0:ffff:1c42:371c
28.66.55.29 0:0:0:0:0:ffff:1c42:371d
28.66.55.30 0:0:0:0:0:ffff:1c42:371e
28.66.55.31 0:0:0:0:0:ffff:1c42:371f
28.66.55.32 0:0:0:0:0:ffff:1c42:3720
28.66.55.33 0:0:0:0:0:ffff:1c42:3721
28.66.55.34 0:0:0:0:0:ffff:1c42:3722
28.66.55.35 0:0:0:0:0:ffff:1c42:3723
28.66.55.36 0:0:0:0:0:ffff:1c42:3724
28.66.55.37 0:0:0:0:0:ffff:1c42:3725
28.66.55.38 0:0:0:0:0:ffff:1c42:3726
28.66.55.39 0:0:0:0:0:ffff:1c42:3727
28.66.55.40 0:0:0:0:0:ffff:1c42:3728
28.66.55.41 0:0:0:0:0:ffff:1c42:3729
28.66.55.42 0:0:0:0:0:ffff:1c42:372a
28.66.55.43 0:0:0:0:0:ffff:1c42:372b
28.66.55.44 0:0:0:0:0:ffff:1c42:372c
28.66.55.45 0:0:0:0:0:ffff:1c42:372d
28.66.55.46 0:0:0:0:0:ffff:1c42:372e
28.66.55.47 0:0:0:0:0:ffff:1c42:372f
28.66.55.48 0:0:0:0:0:ffff:1c42:3730
28.66.55.49 0:0:0:0:0:ffff:1c42:3731
28.66.55.50 0:0:0:0:0:ffff:1c42:3732
28.66.55.51 0:0:0:0:0:ffff:1c42:3733
28.66.55.52 0:0:0:0:0:ffff:1c42:3734
28.66.55.53 0:0:0:0:0:ffff:1c42:3735
28.66.55.54 0:0:0:0:0:ffff:1c42:3736
28.66.55.55 0:0:0:0:0:ffff:1c42:3737
28.66.55.56 0:0:0:0:0:ffff:1c42:3738
28.66.55.57 0:0:0:0:0:ffff:1c42:3739
28.66.55.58 0:0:0:0:0:ffff:1c42:373a
28.66.55.59 0:0:0:0:0:ffff:1c42:373b
28.66.55.60 0:0:0:0:0:ffff:1c42:373c


28.66.55.61 0:0:0:0:0:ffff:1c42:373d
28.66.55.62 0:0:0:0:0:ffff:1c42:373e
28.66.55.63 0:0:0:0:0:ffff:1c42:373f
28.66.55.64 0:0:0:0:0:ffff:1c42:3740
28.66.55.65 0:0:0:0:0:ffff:1c42:3741
28.66.55.66 0:0:0:0:0:ffff:1c42:3742
28.66.55.67 0:0:0:0:0:ffff:1c42:3743
28.66.55.68 0:0:0:0:0:ffff:1c42:3744
28.66.55.69 0:0:0:0:0:ffff:1c42:3745
28.66.55.70 0:0:0:0:0:ffff:1c42:3746
28.66.55.71 0:0:0:0:0:ffff:1c42:3747
28.66.55.72 0:0:0:0:0:ffff:1c42:3748
28.66.55.73 0:0:0:0:0:ffff:1c42:3749
28.66.55.74 0:0:0:0:0:ffff:1c42:374a
28.66.55.75 0:0:0:0:0:ffff:1c42:374b
28.66.55.76 0:0:0:0:0:ffff:1c42:374c
28.66.55.77 0:0:0:0:0:ffff:1c42:374d
28.66.55.78 0:0:0:0:0:ffff:1c42:374e
28.66.55.79 0:0:0:0:0:ffff:1c42:374f
28.66.55.80 0:0:0:0:0:ffff:1c42:3750
28.66.55.81 0:0:0:0:0:ffff:1c42:3751
28.66.55.82 0:0:0:0:0:ffff:1c42:3752
28.66.55.83 0:0:0:0:0:ffff:1c42:3753
28.66.55.84 0:0:0:0:0:ffff:1c42:3754
28.66.55.85 0:0:0:0:0:ffff:1c42:3755
28.66.55.86 0:0:0:0:0:ffff:1c42:3756
28.66.55.87 0:0:0:0:0:ffff:1c42:3757
28.66.55.88 0:0:0:0:0:ffff:1c42:3758
28.66.55.89 0:0:0:0:0:ffff:1c42:3759
28.66.55.90 0:0:0:0:0:ffff:1c42:375a
28.66.55.91 0:0:0:0:0:ffff:1c42:375b
28.66.55.92 0:0:0:0:0:ffff:1c42:375c
28.66.55.93 0:0:0:0:0:ffff:1c42:375d
28.66.55.94 0:0:0:0:0:ffff:1c42:375e
28.66.55.95 0:0:0:0:0:ffff:1c42:375f
28.66.55.96 0:0:0:0:0:ffff:1c42:3760
28.66.55.97 0:0:0:0:0:ffff:1c42:3761
28.66.55.98 0:0:0:0:0:ffff:1c42:3762
28.66.55.99 0:0:0:0:0:ffff:1c42:3763
28.66.55.100 0:0:0:0:0:ffff:1c42:3764
28.66.55.101 0:0:0:0:0:ffff:1c42:3765
28.66.55.102 0:0:0:0:0:ffff:1c42:3766
28.66.55.103 0:0:0:0:0:ffff:1c42:3767
28.66.55.104 0:0:0:0:0:ffff:1c42:3768
28.66.55.105 0:0:0:0:0:ffff:1c42:3769
28.66.55.106 0:0:0:0:0:ffff:1c42:376a
28.66.55.107 0:0:0:0:0:ffff:1c42:376b
28.66.55.108 0:0:0:0:0:ffff:1c42:376c
28.66.55.109 0:0:0:0:0:ffff:1c42:376d
28.66.55.110 0:0:0:0:0:ffff:1c42:376e
28.66.55.111 0:0:0:0:0:ffff:1c42:376f
28.66.55.112 0:0:0:0:0:ffff:1c42:3770
28.66.55.113 0:0:0:0:0:ffff:1c42:3771
28.66.55.114 0:0:0:0:0:ffff:1c42:3772
28.66.55.115 0:0:0:0:0:ffff:1c42:3773
28.66.55.116 0:0:0:0:0:ffff:1c42:3774
28.66.55.117 0:0:0:0:0:ffff:1c42:3775
28.66.55.118 0:0:0:0:0:ffff:1c42:3776
28.66.55.119 0:0:0:0:0:ffff:1c42:3777
28.66.55.120 0:0:0:0:0:ffff:1c42:3778


28.66.55.121 0:0:0:0:0:ffff:1c42:3779
28.66.55.122 0:0:0:0:0:ffff:1c42:377a
28.66.55.123 0:0:0:0:0:ffff:1c42:377b
28.66.55.124 0:0:0:0:0:ffff:1c42:377c
28.66.55.125 0:0:0:0:0:ffff:1c42:377d
28.66.55.126 0:0:0:0:0:ffff:1c42:377e
28.66.55.127 0:0:0:0:0:ffff:1c42:377f
28.66.55.128 0:0:0:0:0:ffff:1c42:3780
28.66.55.129 0:0:0:0:0:ffff:1c42:3781
28.66.55.130 0:0:0:0:0:ffff:1c42:3782
28.66.55.131 0:0:0:0:0:ffff:1c42:3783
28.66.55.132 0:0:0:0:0:ffff:1c42:3784
28.66.55.133 0:0:0:0:0:ffff:1c42:3785
28.66.55.134 0:0:0:0:0:ffff:1c42:3786
28.66.55.135 0:0:0:0:0:ffff:1c42:3787
28.66.55.136 0:0:0:0:0:ffff:1c42:3788
28.66.55.137 0:0:0:0:0:ffff:1c42:3789
28.66.55.138 0:0:0:0:0:ffff:1c42:378a
28.66.55.139 0:0:0:0:0:ffff:1c42:378b
28.66.55.140 0:0:0:0:0:ffff:1c42:378c
28.66.55.141 0:0:0:0:0:ffff:1c42:378d
28.66.55.142 0:0:0:0:0:ffff:1c42:378e
28.66.55.143 0:0:0:0:0:ffff:1c42:378f
28.66.55.144 0:0:0:0:0:ffff:1c42:3790
28.66.55.145 0:0:0:0:0:ffff:1c42:3791
28.66.55.146 0:0:0:0:0:ffff:1c42:3792
28.66.55.147 0:0:0:0:0:ffff:1c42:3793
28.66.55.148 0:0:0:0:0:ffff:1c42:3794
28.66.55.149 0:0:0:0:0:ffff:1c42:3795
28.66.55.150 0:0:0:0:0:ffff:1c42:3796
28.66.55.151 0:0:0:0:0:ffff:1c42:3797
28.66.55.152 0:0:0:0:0:ffff:1c42:3798
28.66.55.153 0:0:0:0:0:ffff:1c42:3799
28.66.55.154 0:0:0:0:0:ffff:1c42:379a
28.66.55.155 0:0:0:0:0:ffff:1c42:379b
28.66.55.156 0:0:0:0:0:ffff:1c42:379c
28.66.55.157 0:0:0:0:0:ffff:1c42:379d
28.66.55.158 0:0:0:0:0:ffff:1c42:379e
28.66.55.159 0:0:0:0:0:ffff:1c42:379f
28.66.55.160 0:0:0:0:0:ffff:1c42:37a0
28.66.55.161 0:0:0:0:0:ffff:1c42:37a1
28.66.55.162 0:0:0:0:0:ffff:1c42:37a2
28.66.55.163 0:0:0:0:0:ffff:1c42:37a3
28.66.55.164 0:0:0:0:0:ffff:1c42:37a4
28.66.55.165 0:0:0:0:0:ffff:1c42:37a5
28.66.55.166 0:0:0:0:0:ffff:1c42:37a6
28.66.55.167 0:0:0:0:0:ffff:1c42:37a7
28.66.55.168 0:0:0:0:0:ffff:1c42:37a8
28.66.55.169 0:0:0:0:0:ffff:1c42:37a9
28.66.55.170 0:0:0:0:0:ffff:1c42:37aa
28.66.55.171 0:0:0:0:0:ffff:1c42:37ab
28.66.55.172 0:0:0:0:0:ffff:1c42:37ac
28.66.55.173 0:0:0:0:0:ffff:1c42:37ad
28.66.55.174 0:0:0:0:0:ffff:1c42:37ae
28.66.55.175 0:0:0:0:0:ffff:1c42:37af
28.66.55.176 0:0:0:0:0:ffff:1c42:37b0
28.66.55.177 0:0:0:0:0:ffff:1c42:37b1
28.66.55.178 0:0:0:0:0:ffff:1c42:37b2
28.66.55.179 0:0:0:0:0:ffff:1c42:37b3
28.66.55.180 0:0:0:0:0:ffff:1c42:37b4


28.66.55.181 0:0:0:0:0:ffff:1c42:37b5
28.66.55.182 0:0:0:0:0:ffff:1c42:37b6
28.66.55.183 0:0:0:0:0:ffff:1c42:37b7
28.66.55.184 0:0:0:0:0:ffff:1c42:37b8
28.66.55.185 0:0:0:0:0:ffff:1c42:37b9
28.66.55.186 0:0:0:0:0:ffff:1c42:37ba
28.66.55.187 0:0:0:0:0:ffff:1c42:37bb
28.66.55.188 0:0:0:0:0:ffff:1c42:37bc
28.66.55.189 0:0:0:0:0:ffff:1c42:37bd
28.66.55.190 0:0:0:0:0:ffff:1c42:37be
28.66.55.191 0:0:0:0:0:ffff:1c42:37bf
28.66.55.192 0:0:0:0:0:ffff:1c42:37c0
28.66.55.193 0:0:0:0:0:ffff:1c42:37c1
28.66.55.194 0:0:0:0:0:ffff:1c42:37c2
28.66.55.195 0:0:0:0:0:ffff:1c42:37c3
28.66.55.196 0:0:0:0:0:ffff:1c42:37c4
28.66.55.197 0:0:0:0:0:ffff:1c42:37c5
28.66.55.198 0:0:0:0:0:ffff:1c42:37c6
28.66.55.199 0:0:0:0:0:ffff:1c42:37c7
28.66.55.200 0:0:0:0:0:ffff:1c42:37c8
28.66.55.201 0:0:0:0:0:ffff:1c42:37c9
28.66.55.202 0:0:0:0:0:ffff:1c42:37ca
28.66.55.203 0:0:0:0:0:ffff:1c42:37cb
28.66.55.204 0:0:0:0:0:ffff:1c42:37cc
28.66.55.205 0:0:0:0:0:ffff:1c42:37cd
28.66.55.206 0:0:0:0:0:ffff:1c42:37ce
28.66.55.207 0:0:0:0:0:ffff:1c42:37cf
28.66.55.208 0:0:0:0:0:ffff:1c42:37d0
28.66.55.209 0:0:0:0:0:ffff:1c42:37d1
28.66.55.210 0:0:0:0:0:ffff:1c42:37d2
28.66.55.211 0:0:0:0:0:ffff:1c42:37d3
28.66.55.212 0:0:0:0:0:ffff:1c42:37d4
28.66.55.213 0:0:0:0:0:ffff:1c42:37d5
28.66.55.214 0:0:0:0:0:ffff:1c42:37d6
28.66.55.215 0:0:0:0:0:ffff:1c42:37d7
28.66.55.216 0:0:0:0:0:ffff:1c42:37d8
28.66.55.217 0:0:0:0:0:ffff:1c42:37d9
28.66.55.218 0:0:0:0:0:ffff:1c42:37da
28.66.55.219 0:0:0:0:0:ffff:1c42:37db
28.66.55.220 0:0:0:0:0:ffff:1c42:37dc
28.66.55.221 0:0:0:0:0:ffff:1c42:37dd
28.66.55.222 0:0:0:0:0:ffff:1c42:37de
28.66.55.223 0:0:0:0:0:ffff:1c42:37df
28.66.55.224 0:0:0:0:0:ffff:1c42:37e0
28.66.55.225 0:0:0:0:0:ffff:1c42:37e1
28.66.55.226 0:0:0:0:0:ffff:1c42:37e2
28.66.55.227 0:0:0:0:0:ffff:1c42:37e3
28.66.55.228 0:0:0:0:0:ffff:1c42:37e4
28.66.55.229 0:0:0:0:0:ffff:1c42:37e5
28.66.55.230 0:0:0:0:0:ffff:1c42:37e6
28.66.55.231 0:0:0:0:0:ffff:1c42:37e7
28.66.55.232 0:0:0:0:0:ffff:1c42:37e8
28.66.55.233 0:0:0:0:0:ffff:1c42:37e9
28.66.55.234 0:0:0:0:0:ffff:1c42:37ea
28.66.55.235 0:0:0:0:0:ffff:1c42:37eb
28.66.55.236 0:0:0:0:0:ffff:1c42:37ec
28.66.55.237 0:0:0:0:0:ffff:1c42:37ed
28.66.55.238 0:0:0:0:0:ffff:1c42:37ee
28.66.55.239 0:0:0:0:0:ffff:1c42:37ef
28.66.55.240 0:0:0:0:0:ffff:1c42:37f0
28.66.55.241 0:0:0:0:0:ffff:1c42:37f1
28.66.55.242 0:0:0:0:0:ffff:1c42:37f2
28.66.55.243 0:0:0:0:0:ffff:1c42:37f3
28.66.55.244 0:0:0:0:0:ffff:1c42:37f4
28.66.55.245 0:0:0:0:0:ffff:1c42:37f5
28.66.55.246 0:0:0:0:0:ffff:1c42:37f6
28.66.55.247 0:0:0:0:0:ffff:1c42:37f7
28.66.55.248 0:0:0:0:0:ffff:1c42:37f8
28.66.55.249 0:0:0:0:0:ffff:1c42:37f9
28.66.55.250 0:0:0:0:0:ffff:1c42:37fa
28.66.55.251 0:0:0:0:0:ffff:1c42:37fb
28.66.55.252 0:0:0:0:0:ffff:1c42:37fc
28.66.55.253 0:0:0:0:0:ffff:1c42:37fd
28.66.55.254 0:0:0:0:0:ffff:1c42:37fe
28.66.55.255 0:0:0:0:0:ffff:1c42:37ff


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.