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
72.255.166.1 0:0:0:0:0:ffff:48ff:a601
72.255.166.2 0:0:0:0:0:ffff:48ff:a602
72.255.166.3 0:0:0:0:0:ffff:48ff:a603
72.255.166.4 0:0:0:0:0:ffff:48ff:a604
72.255.166.5 0:0:0:0:0:ffff:48ff:a605
72.255.166.6 0:0:0:0:0:ffff:48ff:a606
72.255.166.7 0:0:0:0:0:ffff:48ff:a607
72.255.166.8 0:0:0:0:0:ffff:48ff:a608
72.255.166.9 0:0:0:0:0:ffff:48ff:a609
72.255.166.10 0:0:0:0:0:ffff:48ff:a60a
72.255.166.11 0:0:0:0:0:ffff:48ff:a60b
72.255.166.12 0:0:0:0:0:ffff:48ff:a60c
72.255.166.13 0:0:0:0:0:ffff:48ff:a60d
72.255.166.14 0:0:0:0:0:ffff:48ff:a60e
72.255.166.15 0:0:0:0:0:ffff:48ff:a60f
72.255.166.16 0:0:0:0:0:ffff:48ff:a610
72.255.166.17 0:0:0:0:0:ffff:48ff:a611
72.255.166.18 0:0:0:0:0:ffff:48ff:a612
72.255.166.19 0:0:0:0:0:ffff:48ff:a613
72.255.166.20 0:0:0:0:0:ffff:48ff:a614
72.255.166.21 0:0:0:0:0:ffff:48ff:a615
72.255.166.22 0:0:0:0:0:ffff:48ff:a616
72.255.166.23 0:0:0:0:0:ffff:48ff:a617
72.255.166.24 0:0:0:0:0:ffff:48ff:a618
72.255.166.25 0:0:0:0:0:ffff:48ff:a619
72.255.166.26 0:0:0:0:0:ffff:48ff:a61a
72.255.166.27 0:0:0:0:0:ffff:48ff:a61b
72.255.166.28 0:0:0:0:0:ffff:48ff:a61c
72.255.166.29 0:0:0:0:0:ffff:48ff:a61d
72.255.166.30 0:0:0:0:0:ffff:48ff:a61e
72.255.166.31 0:0:0:0:0:ffff:48ff:a61f
72.255.166.32 0:0:0:0:0:ffff:48ff:a620
72.255.166.33 0:0:0:0:0:ffff:48ff:a621
72.255.166.34 0:0:0:0:0:ffff:48ff:a622
72.255.166.35 0:0:0:0:0:ffff:48ff:a623
72.255.166.36 0:0:0:0:0:ffff:48ff:a624
72.255.166.37 0:0:0:0:0:ffff:48ff:a625
72.255.166.38 0:0:0:0:0:ffff:48ff:a626
72.255.166.39 0:0:0:0:0:ffff:48ff:a627
72.255.166.40 0:0:0:0:0:ffff:48ff:a628
72.255.166.41 0:0:0:0:0:ffff:48ff:a629
72.255.166.42 0:0:0:0:0:ffff:48ff:a62a
72.255.166.43 0:0:0:0:0:ffff:48ff:a62b
72.255.166.44 0:0:0:0:0:ffff:48ff:a62c
72.255.166.45 0:0:0:0:0:ffff:48ff:a62d
72.255.166.46 0:0:0:0:0:ffff:48ff:a62e
72.255.166.47 0:0:0:0:0:ffff:48ff:a62f
72.255.166.48 0:0:0:0:0:ffff:48ff:a630
72.255.166.49 0:0:0:0:0:ffff:48ff:a631
72.255.166.50 0:0:0:0:0:ffff:48ff:a632
72.255.166.51 0:0:0:0:0:ffff:48ff:a633
72.255.166.52 0:0:0:0:0:ffff:48ff:a634
72.255.166.53 0:0:0:0:0:ffff:48ff:a635
72.255.166.54 0:0:0:0:0:ffff:48ff:a636
72.255.166.55 0:0:0:0:0:ffff:48ff:a637
72.255.166.56 0:0:0:0:0:ffff:48ff:a638
72.255.166.57 0:0:0:0:0:ffff:48ff:a639
72.255.166.58 0:0:0:0:0:ffff:48ff:a63a
72.255.166.59 0:0:0:0:0:ffff:48ff:a63b
72.255.166.60 0:0:0:0:0:ffff:48ff:a63c


72.255.166.61 0:0:0:0:0:ffff:48ff:a63d
72.255.166.62 0:0:0:0:0:ffff:48ff:a63e
72.255.166.63 0:0:0:0:0:ffff:48ff:a63f
72.255.166.64 0:0:0:0:0:ffff:48ff:a640
72.255.166.65 0:0:0:0:0:ffff:48ff:a641
72.255.166.66 0:0:0:0:0:ffff:48ff:a642
72.255.166.67 0:0:0:0:0:ffff:48ff:a643
72.255.166.68 0:0:0:0:0:ffff:48ff:a644
72.255.166.69 0:0:0:0:0:ffff:48ff:a645
72.255.166.70 0:0:0:0:0:ffff:48ff:a646
72.255.166.71 0:0:0:0:0:ffff:48ff:a647
72.255.166.72 0:0:0:0:0:ffff:48ff:a648
72.255.166.73 0:0:0:0:0:ffff:48ff:a649
72.255.166.74 0:0:0:0:0:ffff:48ff:a64a
72.255.166.75 0:0:0:0:0:ffff:48ff:a64b
72.255.166.76 0:0:0:0:0:ffff:48ff:a64c
72.255.166.77 0:0:0:0:0:ffff:48ff:a64d
72.255.166.78 0:0:0:0:0:ffff:48ff:a64e
72.255.166.79 0:0:0:0:0:ffff:48ff:a64f
72.255.166.80 0:0:0:0:0:ffff:48ff:a650
72.255.166.81 0:0:0:0:0:ffff:48ff:a651
72.255.166.82 0:0:0:0:0:ffff:48ff:a652
72.255.166.83 0:0:0:0:0:ffff:48ff:a653
72.255.166.84 0:0:0:0:0:ffff:48ff:a654
72.255.166.85 0:0:0:0:0:ffff:48ff:a655
72.255.166.86 0:0:0:0:0:ffff:48ff:a656
72.255.166.87 0:0:0:0:0:ffff:48ff:a657
72.255.166.88 0:0:0:0:0:ffff:48ff:a658
72.255.166.89 0:0:0:0:0:ffff:48ff:a659
72.255.166.90 0:0:0:0:0:ffff:48ff:a65a
72.255.166.91 0:0:0:0:0:ffff:48ff:a65b
72.255.166.92 0:0:0:0:0:ffff:48ff:a65c
72.255.166.93 0:0:0:0:0:ffff:48ff:a65d
72.255.166.94 0:0:0:0:0:ffff:48ff:a65e
72.255.166.95 0:0:0:0:0:ffff:48ff:a65f
72.255.166.96 0:0:0:0:0:ffff:48ff:a660
72.255.166.97 0:0:0:0:0:ffff:48ff:a661
72.255.166.98 0:0:0:0:0:ffff:48ff:a662
72.255.166.99 0:0:0:0:0:ffff:48ff:a663
72.255.166.100 0:0:0:0:0:ffff:48ff:a664
72.255.166.101 0:0:0:0:0:ffff:48ff:a665
72.255.166.102 0:0:0:0:0:ffff:48ff:a666
72.255.166.103 0:0:0:0:0:ffff:48ff:a667
72.255.166.104 0:0:0:0:0:ffff:48ff:a668
72.255.166.105 0:0:0:0:0:ffff:48ff:a669
72.255.166.106 0:0:0:0:0:ffff:48ff:a66a
72.255.166.107 0:0:0:0:0:ffff:48ff:a66b
72.255.166.108 0:0:0:0:0:ffff:48ff:a66c
72.255.166.109 0:0:0:0:0:ffff:48ff:a66d
72.255.166.110 0:0:0:0:0:ffff:48ff:a66e
72.255.166.111 0:0:0:0:0:ffff:48ff:a66f
72.255.166.112 0:0:0:0:0:ffff:48ff:a670
72.255.166.113 0:0:0:0:0:ffff:48ff:a671
72.255.166.114 0:0:0:0:0:ffff:48ff:a672
72.255.166.115 0:0:0:0:0:ffff:48ff:a673
72.255.166.116 0:0:0:0:0:ffff:48ff:a674
72.255.166.117 0:0:0:0:0:ffff:48ff:a675
72.255.166.118 0:0:0:0:0:ffff:48ff:a676
72.255.166.119 0:0:0:0:0:ffff:48ff:a677
72.255.166.120 0:0:0:0:0:ffff:48ff:a678


72.255.166.121 0:0:0:0:0:ffff:48ff:a679
72.255.166.122 0:0:0:0:0:ffff:48ff:a67a
72.255.166.123 0:0:0:0:0:ffff:48ff:a67b
72.255.166.124 0:0:0:0:0:ffff:48ff:a67c
72.255.166.125 0:0:0:0:0:ffff:48ff:a67d
72.255.166.126 0:0:0:0:0:ffff:48ff:a67e
72.255.166.127 0:0:0:0:0:ffff:48ff:a67f
72.255.166.128 0:0:0:0:0:ffff:48ff:a680
72.255.166.129 0:0:0:0:0:ffff:48ff:a681
72.255.166.130 0:0:0:0:0:ffff:48ff:a682
72.255.166.131 0:0:0:0:0:ffff:48ff:a683
72.255.166.132 0:0:0:0:0:ffff:48ff:a684
72.255.166.133 0:0:0:0:0:ffff:48ff:a685
72.255.166.134 0:0:0:0:0:ffff:48ff:a686
72.255.166.135 0:0:0:0:0:ffff:48ff:a687
72.255.166.136 0:0:0:0:0:ffff:48ff:a688
72.255.166.137 0:0:0:0:0:ffff:48ff:a689
72.255.166.138 0:0:0:0:0:ffff:48ff:a68a
72.255.166.139 0:0:0:0:0:ffff:48ff:a68b
72.255.166.140 0:0:0:0:0:ffff:48ff:a68c
72.255.166.141 0:0:0:0:0:ffff:48ff:a68d
72.255.166.142 0:0:0:0:0:ffff:48ff:a68e
72.255.166.143 0:0:0:0:0:ffff:48ff:a68f
72.255.166.144 0:0:0:0:0:ffff:48ff:a690
72.255.166.145 0:0:0:0:0:ffff:48ff:a691
72.255.166.146 0:0:0:0:0:ffff:48ff:a692
72.255.166.147 0:0:0:0:0:ffff:48ff:a693
72.255.166.148 0:0:0:0:0:ffff:48ff:a694
72.255.166.149 0:0:0:0:0:ffff:48ff:a695
72.255.166.150 0:0:0:0:0:ffff:48ff:a696
72.255.166.151 0:0:0:0:0:ffff:48ff:a697
72.255.166.152 0:0:0:0:0:ffff:48ff:a698
72.255.166.153 0:0:0:0:0:ffff:48ff:a699
72.255.166.154 0:0:0:0:0:ffff:48ff:a69a
72.255.166.155 0:0:0:0:0:ffff:48ff:a69b
72.255.166.156 0:0:0:0:0:ffff:48ff:a69c
72.255.166.157 0:0:0:0:0:ffff:48ff:a69d
72.255.166.158 0:0:0:0:0:ffff:48ff:a69e
72.255.166.159 0:0:0:0:0:ffff:48ff:a69f
72.255.166.160 0:0:0:0:0:ffff:48ff:a6a0
72.255.166.161 0:0:0:0:0:ffff:48ff:a6a1
72.255.166.162 0:0:0:0:0:ffff:48ff:a6a2
72.255.166.163 0:0:0:0:0:ffff:48ff:a6a3
72.255.166.164 0:0:0:0:0:ffff:48ff:a6a4
72.255.166.165 0:0:0:0:0:ffff:48ff:a6a5
72.255.166.166 0:0:0:0:0:ffff:48ff:a6a6
72.255.166.167 0:0:0:0:0:ffff:48ff:a6a7
72.255.166.168 0:0:0:0:0:ffff:48ff:a6a8
72.255.166.169 0:0:0:0:0:ffff:48ff:a6a9
72.255.166.170 0:0:0:0:0:ffff:48ff:a6aa
72.255.166.171 0:0:0:0:0:ffff:48ff:a6ab
72.255.166.172 0:0:0:0:0:ffff:48ff:a6ac
72.255.166.173 0:0:0:0:0:ffff:48ff:a6ad
72.255.166.174 0:0:0:0:0:ffff:48ff:a6ae
72.255.166.175 0:0:0:0:0:ffff:48ff:a6af
72.255.166.176 0:0:0:0:0:ffff:48ff:a6b0
72.255.166.177 0:0:0:0:0:ffff:48ff:a6b1
72.255.166.178 0:0:0:0:0:ffff:48ff:a6b2
72.255.166.179 0:0:0:0:0:ffff:48ff:a6b3
72.255.166.180 0:0:0:0:0:ffff:48ff:a6b4


72.255.166.181 0:0:0:0:0:ffff:48ff:a6b5
72.255.166.182 0:0:0:0:0:ffff:48ff:a6b6
72.255.166.183 0:0:0:0:0:ffff:48ff:a6b7
72.255.166.184 0:0:0:0:0:ffff:48ff:a6b8
72.255.166.185 0:0:0:0:0:ffff:48ff:a6b9
72.255.166.186 0:0:0:0:0:ffff:48ff:a6ba
72.255.166.187 0:0:0:0:0:ffff:48ff:a6bb
72.255.166.188 0:0:0:0:0:ffff:48ff:a6bc
72.255.166.189 0:0:0:0:0:ffff:48ff:a6bd
72.255.166.190 0:0:0:0:0:ffff:48ff:a6be
72.255.166.191 0:0:0:0:0:ffff:48ff:a6bf
72.255.166.192 0:0:0:0:0:ffff:48ff:a6c0
72.255.166.193 0:0:0:0:0:ffff:48ff:a6c1
72.255.166.194 0:0:0:0:0:ffff:48ff:a6c2
72.255.166.195 0:0:0:0:0:ffff:48ff:a6c3
72.255.166.196 0:0:0:0:0:ffff:48ff:a6c4
72.255.166.197 0:0:0:0:0:ffff:48ff:a6c5
72.255.166.198 0:0:0:0:0:ffff:48ff:a6c6
72.255.166.199 0:0:0:0:0:ffff:48ff:a6c7
72.255.166.200 0:0:0:0:0:ffff:48ff:a6c8
72.255.166.201 0:0:0:0:0:ffff:48ff:a6c9
72.255.166.202 0:0:0:0:0:ffff:48ff:a6ca
72.255.166.203 0:0:0:0:0:ffff:48ff:a6cb
72.255.166.204 0:0:0:0:0:ffff:48ff:a6cc
72.255.166.205 0:0:0:0:0:ffff:48ff:a6cd
72.255.166.206 0:0:0:0:0:ffff:48ff:a6ce
72.255.166.207 0:0:0:0:0:ffff:48ff:a6cf
72.255.166.208 0:0:0:0:0:ffff:48ff:a6d0
72.255.166.209 0:0:0:0:0:ffff:48ff:a6d1
72.255.166.210 0:0:0:0:0:ffff:48ff:a6d2
72.255.166.211 0:0:0:0:0:ffff:48ff:a6d3
72.255.166.212 0:0:0:0:0:ffff:48ff:a6d4
72.255.166.213 0:0:0:0:0:ffff:48ff:a6d5
72.255.166.214 0:0:0:0:0:ffff:48ff:a6d6
72.255.166.215 0:0:0:0:0:ffff:48ff:a6d7
72.255.166.216 0:0:0:0:0:ffff:48ff:a6d8
72.255.166.217 0:0:0:0:0:ffff:48ff:a6d9
72.255.166.218 0:0:0:0:0:ffff:48ff:a6da
72.255.166.219 0:0:0:0:0:ffff:48ff:a6db
72.255.166.220 0:0:0:0:0:ffff:48ff:a6dc
72.255.166.221 0:0:0:0:0:ffff:48ff:a6dd
72.255.166.222 0:0:0:0:0:ffff:48ff:a6de
72.255.166.223 0:0:0:0:0:ffff:48ff:a6df
72.255.166.224 0:0:0:0:0:ffff:48ff:a6e0
72.255.166.225 0:0:0:0:0:ffff:48ff:a6e1
72.255.166.226 0:0:0:0:0:ffff:48ff:a6e2
72.255.166.227 0:0:0:0:0:ffff:48ff:a6e3
72.255.166.228 0:0:0:0:0:ffff:48ff:a6e4
72.255.166.229 0:0:0:0:0:ffff:48ff:a6e5
72.255.166.230 0:0:0:0:0:ffff:48ff:a6e6
72.255.166.231 0:0:0:0:0:ffff:48ff:a6e7
72.255.166.232 0:0:0:0:0:ffff:48ff:a6e8
72.255.166.233 0:0:0:0:0:ffff:48ff:a6e9
72.255.166.234 0:0:0:0:0:ffff:48ff:a6ea
72.255.166.235 0:0:0:0:0:ffff:48ff:a6eb
72.255.166.236 0:0:0:0:0:ffff:48ff:a6ec
72.255.166.237 0:0:0:0:0:ffff:48ff:a6ed
72.255.166.238 0:0:0:0:0:ffff:48ff:a6ee
72.255.166.239 0:0:0:0:0:ffff:48ff:a6ef
72.255.166.240 0:0:0:0:0:ffff:48ff:a6f0
72.255.166.241 0:0:0:0:0:ffff:48ff:a6f1
72.255.166.242 0:0:0:0:0:ffff:48ff:a6f2
72.255.166.243 0:0:0:0:0:ffff:48ff:a6f3
72.255.166.244 0:0:0:0:0:ffff:48ff:a6f4
72.255.166.245 0:0:0:0:0:ffff:48ff:a6f5
72.255.166.246 0:0:0:0:0:ffff:48ff:a6f6
72.255.166.247 0:0:0:0:0:ffff:48ff:a6f7
72.255.166.248 0:0:0:0:0:ffff:48ff:a6f8
72.255.166.249 0:0:0:0:0:ffff:48ff:a6f9
72.255.166.250 0:0:0:0:0:ffff:48ff:a6fa
72.255.166.251 0:0:0:0:0:ffff:48ff:a6fb
72.255.166.252 0:0:0:0:0:ffff:48ff:a6fc
72.255.166.253 0:0:0:0:0:ffff:48ff:a6fd
72.255.166.254 0:0:0:0:0:ffff:48ff:a6fe
72.255.166.255 0:0:0:0:0:ffff:48ff:a6ff


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.