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
123.168.151.1 0:0:0:0:0:ffff:7ba8:9701
123.168.151.2 0:0:0:0:0:ffff:7ba8:9702
123.168.151.3 0:0:0:0:0:ffff:7ba8:9703
123.168.151.4 0:0:0:0:0:ffff:7ba8:9704
123.168.151.5 0:0:0:0:0:ffff:7ba8:9705
123.168.151.6 0:0:0:0:0:ffff:7ba8:9706
123.168.151.7 0:0:0:0:0:ffff:7ba8:9707
123.168.151.8 0:0:0:0:0:ffff:7ba8:9708
123.168.151.9 0:0:0:0:0:ffff:7ba8:9709
123.168.151.10 0:0:0:0:0:ffff:7ba8:970a
123.168.151.11 0:0:0:0:0:ffff:7ba8:970b
123.168.151.12 0:0:0:0:0:ffff:7ba8:970c
123.168.151.13 0:0:0:0:0:ffff:7ba8:970d
123.168.151.14 0:0:0:0:0:ffff:7ba8:970e
123.168.151.15 0:0:0:0:0:ffff:7ba8:970f
123.168.151.16 0:0:0:0:0:ffff:7ba8:9710
123.168.151.17 0:0:0:0:0:ffff:7ba8:9711
123.168.151.18 0:0:0:0:0:ffff:7ba8:9712
123.168.151.19 0:0:0:0:0:ffff:7ba8:9713
123.168.151.20 0:0:0:0:0:ffff:7ba8:9714
123.168.151.21 0:0:0:0:0:ffff:7ba8:9715
123.168.151.22 0:0:0:0:0:ffff:7ba8:9716
123.168.151.23 0:0:0:0:0:ffff:7ba8:9717
123.168.151.24 0:0:0:0:0:ffff:7ba8:9718
123.168.151.25 0:0:0:0:0:ffff:7ba8:9719
123.168.151.26 0:0:0:0:0:ffff:7ba8:971a
123.168.151.27 0:0:0:0:0:ffff:7ba8:971b
123.168.151.28 0:0:0:0:0:ffff:7ba8:971c
123.168.151.29 0:0:0:0:0:ffff:7ba8:971d
123.168.151.30 0:0:0:0:0:ffff:7ba8:971e
123.168.151.31 0:0:0:0:0:ffff:7ba8:971f
123.168.151.32 0:0:0:0:0:ffff:7ba8:9720
123.168.151.33 0:0:0:0:0:ffff:7ba8:9721
123.168.151.34 0:0:0:0:0:ffff:7ba8:9722
123.168.151.35 0:0:0:0:0:ffff:7ba8:9723
123.168.151.36 0:0:0:0:0:ffff:7ba8:9724
123.168.151.37 0:0:0:0:0:ffff:7ba8:9725
123.168.151.38 0:0:0:0:0:ffff:7ba8:9726
123.168.151.39 0:0:0:0:0:ffff:7ba8:9727
123.168.151.40 0:0:0:0:0:ffff:7ba8:9728
123.168.151.41 0:0:0:0:0:ffff:7ba8:9729
123.168.151.42 0:0:0:0:0:ffff:7ba8:972a
123.168.151.43 0:0:0:0:0:ffff:7ba8:972b
123.168.151.44 0:0:0:0:0:ffff:7ba8:972c
123.168.151.45 0:0:0:0:0:ffff:7ba8:972d
123.168.151.46 0:0:0:0:0:ffff:7ba8:972e
123.168.151.47 0:0:0:0:0:ffff:7ba8:972f
123.168.151.48 0:0:0:0:0:ffff:7ba8:9730
123.168.151.49 0:0:0:0:0:ffff:7ba8:9731
123.168.151.50 0:0:0:0:0:ffff:7ba8:9732
123.168.151.51 0:0:0:0:0:ffff:7ba8:9733
123.168.151.52 0:0:0:0:0:ffff:7ba8:9734
123.168.151.53 0:0:0:0:0:ffff:7ba8:9735
123.168.151.54 0:0:0:0:0:ffff:7ba8:9736
123.168.151.55 0:0:0:0:0:ffff:7ba8:9737
123.168.151.56 0:0:0:0:0:ffff:7ba8:9738
123.168.151.57 0:0:0:0:0:ffff:7ba8:9739
123.168.151.58 0:0:0:0:0:ffff:7ba8:973a
123.168.151.59 0:0:0:0:0:ffff:7ba8:973b
123.168.151.60 0:0:0:0:0:ffff:7ba8:973c


123.168.151.61 0:0:0:0:0:ffff:7ba8:973d
123.168.151.62 0:0:0:0:0:ffff:7ba8:973e
123.168.151.63 0:0:0:0:0:ffff:7ba8:973f
123.168.151.64 0:0:0:0:0:ffff:7ba8:9740
123.168.151.65 0:0:0:0:0:ffff:7ba8:9741
123.168.151.66 0:0:0:0:0:ffff:7ba8:9742
123.168.151.67 0:0:0:0:0:ffff:7ba8:9743
123.168.151.68 0:0:0:0:0:ffff:7ba8:9744
123.168.151.69 0:0:0:0:0:ffff:7ba8:9745
123.168.151.70 0:0:0:0:0:ffff:7ba8:9746
123.168.151.71 0:0:0:0:0:ffff:7ba8:9747
123.168.151.72 0:0:0:0:0:ffff:7ba8:9748
123.168.151.73 0:0:0:0:0:ffff:7ba8:9749
123.168.151.74 0:0:0:0:0:ffff:7ba8:974a
123.168.151.75 0:0:0:0:0:ffff:7ba8:974b
123.168.151.76 0:0:0:0:0:ffff:7ba8:974c
123.168.151.77 0:0:0:0:0:ffff:7ba8:974d
123.168.151.78 0:0:0:0:0:ffff:7ba8:974e
123.168.151.79 0:0:0:0:0:ffff:7ba8:974f
123.168.151.80 0:0:0:0:0:ffff:7ba8:9750
123.168.151.81 0:0:0:0:0:ffff:7ba8:9751
123.168.151.82 0:0:0:0:0:ffff:7ba8:9752
123.168.151.83 0:0:0:0:0:ffff:7ba8:9753
123.168.151.84 0:0:0:0:0:ffff:7ba8:9754
123.168.151.85 0:0:0:0:0:ffff:7ba8:9755
123.168.151.86 0:0:0:0:0:ffff:7ba8:9756
123.168.151.87 0:0:0:0:0:ffff:7ba8:9757
123.168.151.88 0:0:0:0:0:ffff:7ba8:9758
123.168.151.89 0:0:0:0:0:ffff:7ba8:9759
123.168.151.90 0:0:0:0:0:ffff:7ba8:975a
123.168.151.91 0:0:0:0:0:ffff:7ba8:975b
123.168.151.92 0:0:0:0:0:ffff:7ba8:975c
123.168.151.93 0:0:0:0:0:ffff:7ba8:975d
123.168.151.94 0:0:0:0:0:ffff:7ba8:975e
123.168.151.95 0:0:0:0:0:ffff:7ba8:975f
123.168.151.96 0:0:0:0:0:ffff:7ba8:9760
123.168.151.97 0:0:0:0:0:ffff:7ba8:9761
123.168.151.98 0:0:0:0:0:ffff:7ba8:9762
123.168.151.99 0:0:0:0:0:ffff:7ba8:9763
123.168.151.100 0:0:0:0:0:ffff:7ba8:9764
123.168.151.101 0:0:0:0:0:ffff:7ba8:9765
123.168.151.102 0:0:0:0:0:ffff:7ba8:9766
123.168.151.103 0:0:0:0:0:ffff:7ba8:9767
123.168.151.104 0:0:0:0:0:ffff:7ba8:9768
123.168.151.105 0:0:0:0:0:ffff:7ba8:9769
123.168.151.106 0:0:0:0:0:ffff:7ba8:976a
123.168.151.107 0:0:0:0:0:ffff:7ba8:976b
123.168.151.108 0:0:0:0:0:ffff:7ba8:976c
123.168.151.109 0:0:0:0:0:ffff:7ba8:976d
123.168.151.110 0:0:0:0:0:ffff:7ba8:976e
123.168.151.111 0:0:0:0:0:ffff:7ba8:976f
123.168.151.112 0:0:0:0:0:ffff:7ba8:9770
123.168.151.113 0:0:0:0:0:ffff:7ba8:9771
123.168.151.114 0:0:0:0:0:ffff:7ba8:9772
123.168.151.115 0:0:0:0:0:ffff:7ba8:9773
123.168.151.116 0:0:0:0:0:ffff:7ba8:9774
123.168.151.117 0:0:0:0:0:ffff:7ba8:9775
123.168.151.118 0:0:0:0:0:ffff:7ba8:9776
123.168.151.119 0:0:0:0:0:ffff:7ba8:9777
123.168.151.120 0:0:0:0:0:ffff:7ba8:9778


123.168.151.121 0:0:0:0:0:ffff:7ba8:9779
123.168.151.122 0:0:0:0:0:ffff:7ba8:977a
123.168.151.123 0:0:0:0:0:ffff:7ba8:977b
123.168.151.124 0:0:0:0:0:ffff:7ba8:977c
123.168.151.125 0:0:0:0:0:ffff:7ba8:977d
123.168.151.126 0:0:0:0:0:ffff:7ba8:977e
123.168.151.127 0:0:0:0:0:ffff:7ba8:977f
123.168.151.128 0:0:0:0:0:ffff:7ba8:9780
123.168.151.129 0:0:0:0:0:ffff:7ba8:9781
123.168.151.130 0:0:0:0:0:ffff:7ba8:9782
123.168.151.131 0:0:0:0:0:ffff:7ba8:9783
123.168.151.132 0:0:0:0:0:ffff:7ba8:9784
123.168.151.133 0:0:0:0:0:ffff:7ba8:9785
123.168.151.134 0:0:0:0:0:ffff:7ba8:9786
123.168.151.135 0:0:0:0:0:ffff:7ba8:9787
123.168.151.136 0:0:0:0:0:ffff:7ba8:9788
123.168.151.137 0:0:0:0:0:ffff:7ba8:9789
123.168.151.138 0:0:0:0:0:ffff:7ba8:978a
123.168.151.139 0:0:0:0:0:ffff:7ba8:978b
123.168.151.140 0:0:0:0:0:ffff:7ba8:978c
123.168.151.141 0:0:0:0:0:ffff:7ba8:978d
123.168.151.142 0:0:0:0:0:ffff:7ba8:978e
123.168.151.143 0:0:0:0:0:ffff:7ba8:978f
123.168.151.144 0:0:0:0:0:ffff:7ba8:9790
123.168.151.145 0:0:0:0:0:ffff:7ba8:9791
123.168.151.146 0:0:0:0:0:ffff:7ba8:9792
123.168.151.147 0:0:0:0:0:ffff:7ba8:9793
123.168.151.148 0:0:0:0:0:ffff:7ba8:9794
123.168.151.149 0:0:0:0:0:ffff:7ba8:9795
123.168.151.150 0:0:0:0:0:ffff:7ba8:9796
123.168.151.151 0:0:0:0:0:ffff:7ba8:9797
123.168.151.152 0:0:0:0:0:ffff:7ba8:9798
123.168.151.153 0:0:0:0:0:ffff:7ba8:9799
123.168.151.154 0:0:0:0:0:ffff:7ba8:979a
123.168.151.155 0:0:0:0:0:ffff:7ba8:979b
123.168.151.156 0:0:0:0:0:ffff:7ba8:979c
123.168.151.157 0:0:0:0:0:ffff:7ba8:979d
123.168.151.158 0:0:0:0:0:ffff:7ba8:979e
123.168.151.159 0:0:0:0:0:ffff:7ba8:979f
123.168.151.160 0:0:0:0:0:ffff:7ba8:97a0
123.168.151.161 0:0:0:0:0:ffff:7ba8:97a1
123.168.151.162 0:0:0:0:0:ffff:7ba8:97a2
123.168.151.163 0:0:0:0:0:ffff:7ba8:97a3
123.168.151.164 0:0:0:0:0:ffff:7ba8:97a4
123.168.151.165 0:0:0:0:0:ffff:7ba8:97a5
123.168.151.166 0:0:0:0:0:ffff:7ba8:97a6
123.168.151.167 0:0:0:0:0:ffff:7ba8:97a7
123.168.151.168 0:0:0:0:0:ffff:7ba8:97a8
123.168.151.169 0:0:0:0:0:ffff:7ba8:97a9
123.168.151.170 0:0:0:0:0:ffff:7ba8:97aa
123.168.151.171 0:0:0:0:0:ffff:7ba8:97ab
123.168.151.172 0:0:0:0:0:ffff:7ba8:97ac
123.168.151.173 0:0:0:0:0:ffff:7ba8:97ad
123.168.151.174 0:0:0:0:0:ffff:7ba8:97ae
123.168.151.175 0:0:0:0:0:ffff:7ba8:97af
123.168.151.176 0:0:0:0:0:ffff:7ba8:97b0
123.168.151.177 0:0:0:0:0:ffff:7ba8:97b1
123.168.151.178 0:0:0:0:0:ffff:7ba8:97b2
123.168.151.179 0:0:0:0:0:ffff:7ba8:97b3
123.168.151.180 0:0:0:0:0:ffff:7ba8:97b4


123.168.151.181 0:0:0:0:0:ffff:7ba8:97b5
123.168.151.182 0:0:0:0:0:ffff:7ba8:97b6
123.168.151.183 0:0:0:0:0:ffff:7ba8:97b7
123.168.151.184 0:0:0:0:0:ffff:7ba8:97b8
123.168.151.185 0:0:0:0:0:ffff:7ba8:97b9
123.168.151.186 0:0:0:0:0:ffff:7ba8:97ba
123.168.151.187 0:0:0:0:0:ffff:7ba8:97bb
123.168.151.188 0:0:0:0:0:ffff:7ba8:97bc
123.168.151.189 0:0:0:0:0:ffff:7ba8:97bd
123.168.151.190 0:0:0:0:0:ffff:7ba8:97be
123.168.151.191 0:0:0:0:0:ffff:7ba8:97bf
123.168.151.192 0:0:0:0:0:ffff:7ba8:97c0
123.168.151.193 0:0:0:0:0:ffff:7ba8:97c1
123.168.151.194 0:0:0:0:0:ffff:7ba8:97c2
123.168.151.195 0:0:0:0:0:ffff:7ba8:97c3
123.168.151.196 0:0:0:0:0:ffff:7ba8:97c4
123.168.151.197 0:0:0:0:0:ffff:7ba8:97c5
123.168.151.198 0:0:0:0:0:ffff:7ba8:97c6
123.168.151.199 0:0:0:0:0:ffff:7ba8:97c7
123.168.151.200 0:0:0:0:0:ffff:7ba8:97c8
123.168.151.201 0:0:0:0:0:ffff:7ba8:97c9
123.168.151.202 0:0:0:0:0:ffff:7ba8:97ca
123.168.151.203 0:0:0:0:0:ffff:7ba8:97cb
123.168.151.204 0:0:0:0:0:ffff:7ba8:97cc
123.168.151.205 0:0:0:0:0:ffff:7ba8:97cd
123.168.151.206 0:0:0:0:0:ffff:7ba8:97ce
123.168.151.207 0:0:0:0:0:ffff:7ba8:97cf
123.168.151.208 0:0:0:0:0:ffff:7ba8:97d0
123.168.151.209 0:0:0:0:0:ffff:7ba8:97d1
123.168.151.210 0:0:0:0:0:ffff:7ba8:97d2
123.168.151.211 0:0:0:0:0:ffff:7ba8:97d3
123.168.151.212 0:0:0:0:0:ffff:7ba8:97d4
123.168.151.213 0:0:0:0:0:ffff:7ba8:97d5
123.168.151.214 0:0:0:0:0:ffff:7ba8:97d6
123.168.151.215 0:0:0:0:0:ffff:7ba8:97d7
123.168.151.216 0:0:0:0:0:ffff:7ba8:97d8
123.168.151.217 0:0:0:0:0:ffff:7ba8:97d9
123.168.151.218 0:0:0:0:0:ffff:7ba8:97da
123.168.151.219 0:0:0:0:0:ffff:7ba8:97db
123.168.151.220 0:0:0:0:0:ffff:7ba8:97dc
123.168.151.221 0:0:0:0:0:ffff:7ba8:97dd
123.168.151.222 0:0:0:0:0:ffff:7ba8:97de
123.168.151.223 0:0:0:0:0:ffff:7ba8:97df
123.168.151.224 0:0:0:0:0:ffff:7ba8:97e0
123.168.151.225 0:0:0:0:0:ffff:7ba8:97e1
123.168.151.226 0:0:0:0:0:ffff:7ba8:97e2
123.168.151.227 0:0:0:0:0:ffff:7ba8:97e3
123.168.151.228 0:0:0:0:0:ffff:7ba8:97e4
123.168.151.229 0:0:0:0:0:ffff:7ba8:97e5
123.168.151.230 0:0:0:0:0:ffff:7ba8:97e6
123.168.151.231 0:0:0:0:0:ffff:7ba8:97e7
123.168.151.232 0:0:0:0:0:ffff:7ba8:97e8
123.168.151.233 0:0:0:0:0:ffff:7ba8:97e9
123.168.151.234 0:0:0:0:0:ffff:7ba8:97ea
123.168.151.235 0:0:0:0:0:ffff:7ba8:97eb
123.168.151.236 0:0:0:0:0:ffff:7ba8:97ec
123.168.151.237 0:0:0:0:0:ffff:7ba8:97ed
123.168.151.238 0:0:0:0:0:ffff:7ba8:97ee
123.168.151.239 0:0:0:0:0:ffff:7ba8:97ef
123.168.151.240 0:0:0:0:0:ffff:7ba8:97f0
123.168.151.241 0:0:0:0:0:ffff:7ba8:97f1
123.168.151.242 0:0:0:0:0:ffff:7ba8:97f2
123.168.151.243 0:0:0:0:0:ffff:7ba8:97f3
123.168.151.244 0:0:0:0:0:ffff:7ba8:97f4
123.168.151.245 0:0:0:0:0:ffff:7ba8:97f5
123.168.151.246 0:0:0:0:0:ffff:7ba8:97f6
123.168.151.247 0:0:0:0:0:ffff:7ba8:97f7
123.168.151.248 0:0:0:0:0:ffff:7ba8:97f8
123.168.151.249 0:0:0:0:0:ffff:7ba8:97f9
123.168.151.250 0:0:0:0:0:ffff:7ba8:97fa
123.168.151.251 0:0:0:0:0:ffff:7ba8:97fb
123.168.151.252 0:0:0:0:0:ffff:7ba8:97fc
123.168.151.253 0:0:0:0:0:ffff:7ba8:97fd
123.168.151.254 0:0:0:0:0:ffff:7ba8:97fe
123.168.151.255 0:0:0:0:0:ffff:7ba8:97ff


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.