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
197.151.166.1 0:0:0:0:0:ffff:c597:a601
197.151.166.2 0:0:0:0:0:ffff:c597:a602
197.151.166.3 0:0:0:0:0:ffff:c597:a603
197.151.166.4 0:0:0:0:0:ffff:c597:a604
197.151.166.5 0:0:0:0:0:ffff:c597:a605
197.151.166.6 0:0:0:0:0:ffff:c597:a606
197.151.166.7 0:0:0:0:0:ffff:c597:a607
197.151.166.8 0:0:0:0:0:ffff:c597:a608
197.151.166.9 0:0:0:0:0:ffff:c597:a609
197.151.166.10 0:0:0:0:0:ffff:c597:a60a
197.151.166.11 0:0:0:0:0:ffff:c597:a60b
197.151.166.12 0:0:0:0:0:ffff:c597:a60c
197.151.166.13 0:0:0:0:0:ffff:c597:a60d
197.151.166.14 0:0:0:0:0:ffff:c597:a60e
197.151.166.15 0:0:0:0:0:ffff:c597:a60f
197.151.166.16 0:0:0:0:0:ffff:c597:a610
197.151.166.17 0:0:0:0:0:ffff:c597:a611
197.151.166.18 0:0:0:0:0:ffff:c597:a612
197.151.166.19 0:0:0:0:0:ffff:c597:a613
197.151.166.20 0:0:0:0:0:ffff:c597:a614
197.151.166.21 0:0:0:0:0:ffff:c597:a615
197.151.166.22 0:0:0:0:0:ffff:c597:a616
197.151.166.23 0:0:0:0:0:ffff:c597:a617
197.151.166.24 0:0:0:0:0:ffff:c597:a618
197.151.166.25 0:0:0:0:0:ffff:c597:a619
197.151.166.26 0:0:0:0:0:ffff:c597:a61a
197.151.166.27 0:0:0:0:0:ffff:c597:a61b
197.151.166.28 0:0:0:0:0:ffff:c597:a61c
197.151.166.29 0:0:0:0:0:ffff:c597:a61d
197.151.166.30 0:0:0:0:0:ffff:c597:a61e
197.151.166.31 0:0:0:0:0:ffff:c597:a61f
197.151.166.32 0:0:0:0:0:ffff:c597:a620
197.151.166.33 0:0:0:0:0:ffff:c597:a621
197.151.166.34 0:0:0:0:0:ffff:c597:a622
197.151.166.35 0:0:0:0:0:ffff:c597:a623
197.151.166.36 0:0:0:0:0:ffff:c597:a624
197.151.166.37 0:0:0:0:0:ffff:c597:a625
197.151.166.38 0:0:0:0:0:ffff:c597:a626
197.151.166.39 0:0:0:0:0:ffff:c597:a627
197.151.166.40 0:0:0:0:0:ffff:c597:a628
197.151.166.41 0:0:0:0:0:ffff:c597:a629
197.151.166.42 0:0:0:0:0:ffff:c597:a62a
197.151.166.43 0:0:0:0:0:ffff:c597:a62b
197.151.166.44 0:0:0:0:0:ffff:c597:a62c
197.151.166.45 0:0:0:0:0:ffff:c597:a62d
197.151.166.46 0:0:0:0:0:ffff:c597:a62e
197.151.166.47 0:0:0:0:0:ffff:c597:a62f
197.151.166.48 0:0:0:0:0:ffff:c597:a630
197.151.166.49 0:0:0:0:0:ffff:c597:a631
197.151.166.50 0:0:0:0:0:ffff:c597:a632
197.151.166.51 0:0:0:0:0:ffff:c597:a633
197.151.166.52 0:0:0:0:0:ffff:c597:a634
197.151.166.53 0:0:0:0:0:ffff:c597:a635
197.151.166.54 0:0:0:0:0:ffff:c597:a636
197.151.166.55 0:0:0:0:0:ffff:c597:a637
197.151.166.56 0:0:0:0:0:ffff:c597:a638
197.151.166.57 0:0:0:0:0:ffff:c597:a639
197.151.166.58 0:0:0:0:0:ffff:c597:a63a
197.151.166.59 0:0:0:0:0:ffff:c597:a63b
197.151.166.60 0:0:0:0:0:ffff:c597:a63c


197.151.166.61 0:0:0:0:0:ffff:c597:a63d
197.151.166.62 0:0:0:0:0:ffff:c597:a63e
197.151.166.63 0:0:0:0:0:ffff:c597:a63f
197.151.166.64 0:0:0:0:0:ffff:c597:a640
197.151.166.65 0:0:0:0:0:ffff:c597:a641
197.151.166.66 0:0:0:0:0:ffff:c597:a642
197.151.166.67 0:0:0:0:0:ffff:c597:a643
197.151.166.68 0:0:0:0:0:ffff:c597:a644
197.151.166.69 0:0:0:0:0:ffff:c597:a645
197.151.166.70 0:0:0:0:0:ffff:c597:a646
197.151.166.71 0:0:0:0:0:ffff:c597:a647
197.151.166.72 0:0:0:0:0:ffff:c597:a648
197.151.166.73 0:0:0:0:0:ffff:c597:a649
197.151.166.74 0:0:0:0:0:ffff:c597:a64a
197.151.166.75 0:0:0:0:0:ffff:c597:a64b
197.151.166.76 0:0:0:0:0:ffff:c597:a64c
197.151.166.77 0:0:0:0:0:ffff:c597:a64d
197.151.166.78 0:0:0:0:0:ffff:c597:a64e
197.151.166.79 0:0:0:0:0:ffff:c597:a64f
197.151.166.80 0:0:0:0:0:ffff:c597:a650
197.151.166.81 0:0:0:0:0:ffff:c597:a651
197.151.166.82 0:0:0:0:0:ffff:c597:a652
197.151.166.83 0:0:0:0:0:ffff:c597:a653
197.151.166.84 0:0:0:0:0:ffff:c597:a654
197.151.166.85 0:0:0:0:0:ffff:c597:a655
197.151.166.86 0:0:0:0:0:ffff:c597:a656
197.151.166.87 0:0:0:0:0:ffff:c597:a657
197.151.166.88 0:0:0:0:0:ffff:c597:a658
197.151.166.89 0:0:0:0:0:ffff:c597:a659
197.151.166.90 0:0:0:0:0:ffff:c597:a65a
197.151.166.91 0:0:0:0:0:ffff:c597:a65b
197.151.166.92 0:0:0:0:0:ffff:c597:a65c
197.151.166.93 0:0:0:0:0:ffff:c597:a65d
197.151.166.94 0:0:0:0:0:ffff:c597:a65e
197.151.166.95 0:0:0:0:0:ffff:c597:a65f
197.151.166.96 0:0:0:0:0:ffff:c597:a660
197.151.166.97 0:0:0:0:0:ffff:c597:a661
197.151.166.98 0:0:0:0:0:ffff:c597:a662
197.151.166.99 0:0:0:0:0:ffff:c597:a663
197.151.166.100 0:0:0:0:0:ffff:c597:a664
197.151.166.101 0:0:0:0:0:ffff:c597:a665
197.151.166.102 0:0:0:0:0:ffff:c597:a666
197.151.166.103 0:0:0:0:0:ffff:c597:a667
197.151.166.104 0:0:0:0:0:ffff:c597:a668
197.151.166.105 0:0:0:0:0:ffff:c597:a669
197.151.166.106 0:0:0:0:0:ffff:c597:a66a
197.151.166.107 0:0:0:0:0:ffff:c597:a66b
197.151.166.108 0:0:0:0:0:ffff:c597:a66c
197.151.166.109 0:0:0:0:0:ffff:c597:a66d
197.151.166.110 0:0:0:0:0:ffff:c597:a66e
197.151.166.111 0:0:0:0:0:ffff:c597:a66f
197.151.166.112 0:0:0:0:0:ffff:c597:a670
197.151.166.113 0:0:0:0:0:ffff:c597:a671
197.151.166.114 0:0:0:0:0:ffff:c597:a672
197.151.166.115 0:0:0:0:0:ffff:c597:a673
197.151.166.116 0:0:0:0:0:ffff:c597:a674
197.151.166.117 0:0:0:0:0:ffff:c597:a675
197.151.166.118 0:0:0:0:0:ffff:c597:a676
197.151.166.119 0:0:0:0:0:ffff:c597:a677
197.151.166.120 0:0:0:0:0:ffff:c597:a678


197.151.166.121 0:0:0:0:0:ffff:c597:a679
197.151.166.122 0:0:0:0:0:ffff:c597:a67a
197.151.166.123 0:0:0:0:0:ffff:c597:a67b
197.151.166.124 0:0:0:0:0:ffff:c597:a67c
197.151.166.125 0:0:0:0:0:ffff:c597:a67d
197.151.166.126 0:0:0:0:0:ffff:c597:a67e
197.151.166.127 0:0:0:0:0:ffff:c597:a67f
197.151.166.128 0:0:0:0:0:ffff:c597:a680
197.151.166.129 0:0:0:0:0:ffff:c597:a681
197.151.166.130 0:0:0:0:0:ffff:c597:a682
197.151.166.131 0:0:0:0:0:ffff:c597:a683
197.151.166.132 0:0:0:0:0:ffff:c597:a684
197.151.166.133 0:0:0:0:0:ffff:c597:a685
197.151.166.134 0:0:0:0:0:ffff:c597:a686
197.151.166.135 0:0:0:0:0:ffff:c597:a687
197.151.166.136 0:0:0:0:0:ffff:c597:a688
197.151.166.137 0:0:0:0:0:ffff:c597:a689
197.151.166.138 0:0:0:0:0:ffff:c597:a68a
197.151.166.139 0:0:0:0:0:ffff:c597:a68b
197.151.166.140 0:0:0:0:0:ffff:c597:a68c
197.151.166.141 0:0:0:0:0:ffff:c597:a68d
197.151.166.142 0:0:0:0:0:ffff:c597:a68e
197.151.166.143 0:0:0:0:0:ffff:c597:a68f
197.151.166.144 0:0:0:0:0:ffff:c597:a690
197.151.166.145 0:0:0:0:0:ffff:c597:a691
197.151.166.146 0:0:0:0:0:ffff:c597:a692
197.151.166.147 0:0:0:0:0:ffff:c597:a693
197.151.166.148 0:0:0:0:0:ffff:c597:a694
197.151.166.149 0:0:0:0:0:ffff:c597:a695
197.151.166.150 0:0:0:0:0:ffff:c597:a696
197.151.166.151 0:0:0:0:0:ffff:c597:a697
197.151.166.152 0:0:0:0:0:ffff:c597:a698
197.151.166.153 0:0:0:0:0:ffff:c597:a699
197.151.166.154 0:0:0:0:0:ffff:c597:a69a
197.151.166.155 0:0:0:0:0:ffff:c597:a69b
197.151.166.156 0:0:0:0:0:ffff:c597:a69c
197.151.166.157 0:0:0:0:0:ffff:c597:a69d
197.151.166.158 0:0:0:0:0:ffff:c597:a69e
197.151.166.159 0:0:0:0:0:ffff:c597:a69f
197.151.166.160 0:0:0:0:0:ffff:c597:a6a0
197.151.166.161 0:0:0:0:0:ffff:c597:a6a1
197.151.166.162 0:0:0:0:0:ffff:c597:a6a2
197.151.166.163 0:0:0:0:0:ffff:c597:a6a3
197.151.166.164 0:0:0:0:0:ffff:c597:a6a4
197.151.166.165 0:0:0:0:0:ffff:c597:a6a5
197.151.166.166 0:0:0:0:0:ffff:c597:a6a6
197.151.166.167 0:0:0:0:0:ffff:c597:a6a7
197.151.166.168 0:0:0:0:0:ffff:c597:a6a8
197.151.166.169 0:0:0:0:0:ffff:c597:a6a9
197.151.166.170 0:0:0:0:0:ffff:c597:a6aa
197.151.166.171 0:0:0:0:0:ffff:c597:a6ab
197.151.166.172 0:0:0:0:0:ffff:c597:a6ac
197.151.166.173 0:0:0:0:0:ffff:c597:a6ad
197.151.166.174 0:0:0:0:0:ffff:c597:a6ae
197.151.166.175 0:0:0:0:0:ffff:c597:a6af
197.151.166.176 0:0:0:0:0:ffff:c597:a6b0
197.151.166.177 0:0:0:0:0:ffff:c597:a6b1
197.151.166.178 0:0:0:0:0:ffff:c597:a6b2
197.151.166.179 0:0:0:0:0:ffff:c597:a6b3
197.151.166.180 0:0:0:0:0:ffff:c597:a6b4


197.151.166.181 0:0:0:0:0:ffff:c597:a6b5
197.151.166.182 0:0:0:0:0:ffff:c597:a6b6
197.151.166.183 0:0:0:0:0:ffff:c597:a6b7
197.151.166.184 0:0:0:0:0:ffff:c597:a6b8
197.151.166.185 0:0:0:0:0:ffff:c597:a6b9
197.151.166.186 0:0:0:0:0:ffff:c597:a6ba
197.151.166.187 0:0:0:0:0:ffff:c597:a6bb
197.151.166.188 0:0:0:0:0:ffff:c597:a6bc
197.151.166.189 0:0:0:0:0:ffff:c597:a6bd
197.151.166.190 0:0:0:0:0:ffff:c597:a6be
197.151.166.191 0:0:0:0:0:ffff:c597:a6bf
197.151.166.192 0:0:0:0:0:ffff:c597:a6c0
197.151.166.193 0:0:0:0:0:ffff:c597:a6c1
197.151.166.194 0:0:0:0:0:ffff:c597:a6c2
197.151.166.195 0:0:0:0:0:ffff:c597:a6c3
197.151.166.196 0:0:0:0:0:ffff:c597:a6c4
197.151.166.197 0:0:0:0:0:ffff:c597:a6c5
197.151.166.198 0:0:0:0:0:ffff:c597:a6c6
197.151.166.199 0:0:0:0:0:ffff:c597:a6c7
197.151.166.200 0:0:0:0:0:ffff:c597:a6c8
197.151.166.201 0:0:0:0:0:ffff:c597:a6c9
197.151.166.202 0:0:0:0:0:ffff:c597:a6ca
197.151.166.203 0:0:0:0:0:ffff:c597:a6cb
197.151.166.204 0:0:0:0:0:ffff:c597:a6cc
197.151.166.205 0:0:0:0:0:ffff:c597:a6cd
197.151.166.206 0:0:0:0:0:ffff:c597:a6ce
197.151.166.207 0:0:0:0:0:ffff:c597:a6cf
197.151.166.208 0:0:0:0:0:ffff:c597:a6d0
197.151.166.209 0:0:0:0:0:ffff:c597:a6d1
197.151.166.210 0:0:0:0:0:ffff:c597:a6d2
197.151.166.211 0:0:0:0:0:ffff:c597:a6d3
197.151.166.212 0:0:0:0:0:ffff:c597:a6d4
197.151.166.213 0:0:0:0:0:ffff:c597:a6d5
197.151.166.214 0:0:0:0:0:ffff:c597:a6d6
197.151.166.215 0:0:0:0:0:ffff:c597:a6d7
197.151.166.216 0:0:0:0:0:ffff:c597:a6d8
197.151.166.217 0:0:0:0:0:ffff:c597:a6d9
197.151.166.218 0:0:0:0:0:ffff:c597:a6da
197.151.166.219 0:0:0:0:0:ffff:c597:a6db
197.151.166.220 0:0:0:0:0:ffff:c597:a6dc
197.151.166.221 0:0:0:0:0:ffff:c597:a6dd
197.151.166.222 0:0:0:0:0:ffff:c597:a6de
197.151.166.223 0:0:0:0:0:ffff:c597:a6df
197.151.166.224 0:0:0:0:0:ffff:c597:a6e0
197.151.166.225 0:0:0:0:0:ffff:c597:a6e1
197.151.166.226 0:0:0:0:0:ffff:c597:a6e2
197.151.166.227 0:0:0:0:0:ffff:c597:a6e3
197.151.166.228 0:0:0:0:0:ffff:c597:a6e4
197.151.166.229 0:0:0:0:0:ffff:c597:a6e5
197.151.166.230 0:0:0:0:0:ffff:c597:a6e6
197.151.166.231 0:0:0:0:0:ffff:c597:a6e7
197.151.166.232 0:0:0:0:0:ffff:c597:a6e8
197.151.166.233 0:0:0:0:0:ffff:c597:a6e9
197.151.166.234 0:0:0:0:0:ffff:c597:a6ea
197.151.166.235 0:0:0:0:0:ffff:c597:a6eb
197.151.166.236 0:0:0:0:0:ffff:c597:a6ec
197.151.166.237 0:0:0:0:0:ffff:c597:a6ed
197.151.166.238 0:0:0:0:0:ffff:c597:a6ee
197.151.166.239 0:0:0:0:0:ffff:c597:a6ef
197.151.166.240 0:0:0:0:0:ffff:c597:a6f0
197.151.166.241 0:0:0:0:0:ffff:c597:a6f1
197.151.166.242 0:0:0:0:0:ffff:c597:a6f2
197.151.166.243 0:0:0:0:0:ffff:c597:a6f3
197.151.166.244 0:0:0:0:0:ffff:c597:a6f4
197.151.166.245 0:0:0:0:0:ffff:c597:a6f5
197.151.166.246 0:0:0:0:0:ffff:c597:a6f6
197.151.166.247 0:0:0:0:0:ffff:c597:a6f7
197.151.166.248 0:0:0:0:0:ffff:c597:a6f8
197.151.166.249 0:0:0:0:0:ffff:c597:a6f9
197.151.166.250 0:0:0:0:0:ffff:c597:a6fa
197.151.166.251 0:0:0:0:0:ffff:c597:a6fb
197.151.166.252 0:0:0:0:0:ffff:c597:a6fc
197.151.166.253 0:0:0:0:0:ffff:c597:a6fd
197.151.166.254 0:0:0:0:0:ffff:c597:a6fe
197.151.166.255 0:0:0:0:0:ffff:c597: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.