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
151.123.119.1 0:0:0:0:0:ffff:977b:7701
151.123.119.2 0:0:0:0:0:ffff:977b:7702
151.123.119.3 0:0:0:0:0:ffff:977b:7703
151.123.119.4 0:0:0:0:0:ffff:977b:7704
151.123.119.5 0:0:0:0:0:ffff:977b:7705
151.123.119.6 0:0:0:0:0:ffff:977b:7706
151.123.119.7 0:0:0:0:0:ffff:977b:7707
151.123.119.8 0:0:0:0:0:ffff:977b:7708
151.123.119.9 0:0:0:0:0:ffff:977b:7709
151.123.119.10 0:0:0:0:0:ffff:977b:770a
151.123.119.11 0:0:0:0:0:ffff:977b:770b
151.123.119.12 0:0:0:0:0:ffff:977b:770c
151.123.119.13 0:0:0:0:0:ffff:977b:770d
151.123.119.14 0:0:0:0:0:ffff:977b:770e
151.123.119.15 0:0:0:0:0:ffff:977b:770f
151.123.119.16 0:0:0:0:0:ffff:977b:7710
151.123.119.17 0:0:0:0:0:ffff:977b:7711
151.123.119.18 0:0:0:0:0:ffff:977b:7712
151.123.119.19 0:0:0:0:0:ffff:977b:7713
151.123.119.20 0:0:0:0:0:ffff:977b:7714
151.123.119.21 0:0:0:0:0:ffff:977b:7715
151.123.119.22 0:0:0:0:0:ffff:977b:7716
151.123.119.23 0:0:0:0:0:ffff:977b:7717
151.123.119.24 0:0:0:0:0:ffff:977b:7718
151.123.119.25 0:0:0:0:0:ffff:977b:7719
151.123.119.26 0:0:0:0:0:ffff:977b:771a
151.123.119.27 0:0:0:0:0:ffff:977b:771b
151.123.119.28 0:0:0:0:0:ffff:977b:771c
151.123.119.29 0:0:0:0:0:ffff:977b:771d
151.123.119.30 0:0:0:0:0:ffff:977b:771e
151.123.119.31 0:0:0:0:0:ffff:977b:771f
151.123.119.32 0:0:0:0:0:ffff:977b:7720
151.123.119.33 0:0:0:0:0:ffff:977b:7721
151.123.119.34 0:0:0:0:0:ffff:977b:7722
151.123.119.35 0:0:0:0:0:ffff:977b:7723
151.123.119.36 0:0:0:0:0:ffff:977b:7724
151.123.119.37 0:0:0:0:0:ffff:977b:7725
151.123.119.38 0:0:0:0:0:ffff:977b:7726
151.123.119.39 0:0:0:0:0:ffff:977b:7727
151.123.119.40 0:0:0:0:0:ffff:977b:7728
151.123.119.41 0:0:0:0:0:ffff:977b:7729
151.123.119.42 0:0:0:0:0:ffff:977b:772a
151.123.119.43 0:0:0:0:0:ffff:977b:772b
151.123.119.44 0:0:0:0:0:ffff:977b:772c
151.123.119.45 0:0:0:0:0:ffff:977b:772d
151.123.119.46 0:0:0:0:0:ffff:977b:772e
151.123.119.47 0:0:0:0:0:ffff:977b:772f
151.123.119.48 0:0:0:0:0:ffff:977b:7730
151.123.119.49 0:0:0:0:0:ffff:977b:7731
151.123.119.50 0:0:0:0:0:ffff:977b:7732
151.123.119.51 0:0:0:0:0:ffff:977b:7733
151.123.119.52 0:0:0:0:0:ffff:977b:7734
151.123.119.53 0:0:0:0:0:ffff:977b:7735
151.123.119.54 0:0:0:0:0:ffff:977b:7736
151.123.119.55 0:0:0:0:0:ffff:977b:7737
151.123.119.56 0:0:0:0:0:ffff:977b:7738
151.123.119.57 0:0:0:0:0:ffff:977b:7739
151.123.119.58 0:0:0:0:0:ffff:977b:773a
151.123.119.59 0:0:0:0:0:ffff:977b:773b
151.123.119.60 0:0:0:0:0:ffff:977b:773c


151.123.119.61 0:0:0:0:0:ffff:977b:773d
151.123.119.62 0:0:0:0:0:ffff:977b:773e
151.123.119.63 0:0:0:0:0:ffff:977b:773f
151.123.119.64 0:0:0:0:0:ffff:977b:7740
151.123.119.65 0:0:0:0:0:ffff:977b:7741
151.123.119.66 0:0:0:0:0:ffff:977b:7742
151.123.119.67 0:0:0:0:0:ffff:977b:7743
151.123.119.68 0:0:0:0:0:ffff:977b:7744
151.123.119.69 0:0:0:0:0:ffff:977b:7745
151.123.119.70 0:0:0:0:0:ffff:977b:7746
151.123.119.71 0:0:0:0:0:ffff:977b:7747
151.123.119.72 0:0:0:0:0:ffff:977b:7748
151.123.119.73 0:0:0:0:0:ffff:977b:7749
151.123.119.74 0:0:0:0:0:ffff:977b:774a
151.123.119.75 0:0:0:0:0:ffff:977b:774b
151.123.119.76 0:0:0:0:0:ffff:977b:774c
151.123.119.77 0:0:0:0:0:ffff:977b:774d
151.123.119.78 0:0:0:0:0:ffff:977b:774e
151.123.119.79 0:0:0:0:0:ffff:977b:774f
151.123.119.80 0:0:0:0:0:ffff:977b:7750
151.123.119.81 0:0:0:0:0:ffff:977b:7751
151.123.119.82 0:0:0:0:0:ffff:977b:7752
151.123.119.83 0:0:0:0:0:ffff:977b:7753
151.123.119.84 0:0:0:0:0:ffff:977b:7754
151.123.119.85 0:0:0:0:0:ffff:977b:7755
151.123.119.86 0:0:0:0:0:ffff:977b:7756
151.123.119.87 0:0:0:0:0:ffff:977b:7757
151.123.119.88 0:0:0:0:0:ffff:977b:7758
151.123.119.89 0:0:0:0:0:ffff:977b:7759
151.123.119.90 0:0:0:0:0:ffff:977b:775a
151.123.119.91 0:0:0:0:0:ffff:977b:775b
151.123.119.92 0:0:0:0:0:ffff:977b:775c
151.123.119.93 0:0:0:0:0:ffff:977b:775d
151.123.119.94 0:0:0:0:0:ffff:977b:775e
151.123.119.95 0:0:0:0:0:ffff:977b:775f
151.123.119.96 0:0:0:0:0:ffff:977b:7760
151.123.119.97 0:0:0:0:0:ffff:977b:7761
151.123.119.98 0:0:0:0:0:ffff:977b:7762
151.123.119.99 0:0:0:0:0:ffff:977b:7763
151.123.119.100 0:0:0:0:0:ffff:977b:7764
151.123.119.101 0:0:0:0:0:ffff:977b:7765
151.123.119.102 0:0:0:0:0:ffff:977b:7766
151.123.119.103 0:0:0:0:0:ffff:977b:7767
151.123.119.104 0:0:0:0:0:ffff:977b:7768
151.123.119.105 0:0:0:0:0:ffff:977b:7769
151.123.119.106 0:0:0:0:0:ffff:977b:776a
151.123.119.107 0:0:0:0:0:ffff:977b:776b
151.123.119.108 0:0:0:0:0:ffff:977b:776c
151.123.119.109 0:0:0:0:0:ffff:977b:776d
151.123.119.110 0:0:0:0:0:ffff:977b:776e
151.123.119.111 0:0:0:0:0:ffff:977b:776f
151.123.119.112 0:0:0:0:0:ffff:977b:7770
151.123.119.113 0:0:0:0:0:ffff:977b:7771
151.123.119.114 0:0:0:0:0:ffff:977b:7772
151.123.119.115 0:0:0:0:0:ffff:977b:7773
151.123.119.116 0:0:0:0:0:ffff:977b:7774
151.123.119.117 0:0:0:0:0:ffff:977b:7775
151.123.119.118 0:0:0:0:0:ffff:977b:7776
151.123.119.119 0:0:0:0:0:ffff:977b:7777
151.123.119.120 0:0:0:0:0:ffff:977b:7778


151.123.119.121 0:0:0:0:0:ffff:977b:7779
151.123.119.122 0:0:0:0:0:ffff:977b:777a
151.123.119.123 0:0:0:0:0:ffff:977b:777b
151.123.119.124 0:0:0:0:0:ffff:977b:777c
151.123.119.125 0:0:0:0:0:ffff:977b:777d
151.123.119.126 0:0:0:0:0:ffff:977b:777e
151.123.119.127 0:0:0:0:0:ffff:977b:777f
151.123.119.128 0:0:0:0:0:ffff:977b:7780
151.123.119.129 0:0:0:0:0:ffff:977b:7781
151.123.119.130 0:0:0:0:0:ffff:977b:7782
151.123.119.131 0:0:0:0:0:ffff:977b:7783
151.123.119.132 0:0:0:0:0:ffff:977b:7784
151.123.119.133 0:0:0:0:0:ffff:977b:7785
151.123.119.134 0:0:0:0:0:ffff:977b:7786
151.123.119.135 0:0:0:0:0:ffff:977b:7787
151.123.119.136 0:0:0:0:0:ffff:977b:7788
151.123.119.137 0:0:0:0:0:ffff:977b:7789
151.123.119.138 0:0:0:0:0:ffff:977b:778a
151.123.119.139 0:0:0:0:0:ffff:977b:778b
151.123.119.140 0:0:0:0:0:ffff:977b:778c
151.123.119.141 0:0:0:0:0:ffff:977b:778d
151.123.119.142 0:0:0:0:0:ffff:977b:778e
151.123.119.143 0:0:0:0:0:ffff:977b:778f
151.123.119.144 0:0:0:0:0:ffff:977b:7790
151.123.119.145 0:0:0:0:0:ffff:977b:7791
151.123.119.146 0:0:0:0:0:ffff:977b:7792
151.123.119.147 0:0:0:0:0:ffff:977b:7793
151.123.119.148 0:0:0:0:0:ffff:977b:7794
151.123.119.149 0:0:0:0:0:ffff:977b:7795
151.123.119.150 0:0:0:0:0:ffff:977b:7796
151.123.119.151 0:0:0:0:0:ffff:977b:7797
151.123.119.152 0:0:0:0:0:ffff:977b:7798
151.123.119.153 0:0:0:0:0:ffff:977b:7799
151.123.119.154 0:0:0:0:0:ffff:977b:779a
151.123.119.155 0:0:0:0:0:ffff:977b:779b
151.123.119.156 0:0:0:0:0:ffff:977b:779c
151.123.119.157 0:0:0:0:0:ffff:977b:779d
151.123.119.158 0:0:0:0:0:ffff:977b:779e
151.123.119.159 0:0:0:0:0:ffff:977b:779f
151.123.119.160 0:0:0:0:0:ffff:977b:77a0
151.123.119.161 0:0:0:0:0:ffff:977b:77a1
151.123.119.162 0:0:0:0:0:ffff:977b:77a2
151.123.119.163 0:0:0:0:0:ffff:977b:77a3
151.123.119.164 0:0:0:0:0:ffff:977b:77a4
151.123.119.165 0:0:0:0:0:ffff:977b:77a5
151.123.119.166 0:0:0:0:0:ffff:977b:77a6
151.123.119.167 0:0:0:0:0:ffff:977b:77a7
151.123.119.168 0:0:0:0:0:ffff:977b:77a8
151.123.119.169 0:0:0:0:0:ffff:977b:77a9
151.123.119.170 0:0:0:0:0:ffff:977b:77aa
151.123.119.171 0:0:0:0:0:ffff:977b:77ab
151.123.119.172 0:0:0:0:0:ffff:977b:77ac
151.123.119.173 0:0:0:0:0:ffff:977b:77ad
151.123.119.174 0:0:0:0:0:ffff:977b:77ae
151.123.119.175 0:0:0:0:0:ffff:977b:77af
151.123.119.176 0:0:0:0:0:ffff:977b:77b0
151.123.119.177 0:0:0:0:0:ffff:977b:77b1
151.123.119.178 0:0:0:0:0:ffff:977b:77b2
151.123.119.179 0:0:0:0:0:ffff:977b:77b3
151.123.119.180 0:0:0:0:0:ffff:977b:77b4


151.123.119.181 0:0:0:0:0:ffff:977b:77b5
151.123.119.182 0:0:0:0:0:ffff:977b:77b6
151.123.119.183 0:0:0:0:0:ffff:977b:77b7
151.123.119.184 0:0:0:0:0:ffff:977b:77b8
151.123.119.185 0:0:0:0:0:ffff:977b:77b9
151.123.119.186 0:0:0:0:0:ffff:977b:77ba
151.123.119.187 0:0:0:0:0:ffff:977b:77bb
151.123.119.188 0:0:0:0:0:ffff:977b:77bc
151.123.119.189 0:0:0:0:0:ffff:977b:77bd
151.123.119.190 0:0:0:0:0:ffff:977b:77be
151.123.119.191 0:0:0:0:0:ffff:977b:77bf
151.123.119.192 0:0:0:0:0:ffff:977b:77c0
151.123.119.193 0:0:0:0:0:ffff:977b:77c1
151.123.119.194 0:0:0:0:0:ffff:977b:77c2
151.123.119.195 0:0:0:0:0:ffff:977b:77c3
151.123.119.196 0:0:0:0:0:ffff:977b:77c4
151.123.119.197 0:0:0:0:0:ffff:977b:77c5
151.123.119.198 0:0:0:0:0:ffff:977b:77c6
151.123.119.199 0:0:0:0:0:ffff:977b:77c7
151.123.119.200 0:0:0:0:0:ffff:977b:77c8
151.123.119.201 0:0:0:0:0:ffff:977b:77c9
151.123.119.202 0:0:0:0:0:ffff:977b:77ca
151.123.119.203 0:0:0:0:0:ffff:977b:77cb
151.123.119.204 0:0:0:0:0:ffff:977b:77cc
151.123.119.205 0:0:0:0:0:ffff:977b:77cd
151.123.119.206 0:0:0:0:0:ffff:977b:77ce
151.123.119.207 0:0:0:0:0:ffff:977b:77cf
151.123.119.208 0:0:0:0:0:ffff:977b:77d0
151.123.119.209 0:0:0:0:0:ffff:977b:77d1
151.123.119.210 0:0:0:0:0:ffff:977b:77d2
151.123.119.211 0:0:0:0:0:ffff:977b:77d3
151.123.119.212 0:0:0:0:0:ffff:977b:77d4
151.123.119.213 0:0:0:0:0:ffff:977b:77d5
151.123.119.214 0:0:0:0:0:ffff:977b:77d6
151.123.119.215 0:0:0:0:0:ffff:977b:77d7
151.123.119.216 0:0:0:0:0:ffff:977b:77d8
151.123.119.217 0:0:0:0:0:ffff:977b:77d9
151.123.119.218 0:0:0:0:0:ffff:977b:77da
151.123.119.219 0:0:0:0:0:ffff:977b:77db
151.123.119.220 0:0:0:0:0:ffff:977b:77dc
151.123.119.221 0:0:0:0:0:ffff:977b:77dd
151.123.119.222 0:0:0:0:0:ffff:977b:77de
151.123.119.223 0:0:0:0:0:ffff:977b:77df
151.123.119.224 0:0:0:0:0:ffff:977b:77e0
151.123.119.225 0:0:0:0:0:ffff:977b:77e1
151.123.119.226 0:0:0:0:0:ffff:977b:77e2
151.123.119.227 0:0:0:0:0:ffff:977b:77e3
151.123.119.228 0:0:0:0:0:ffff:977b:77e4
151.123.119.229 0:0:0:0:0:ffff:977b:77e5
151.123.119.230 0:0:0:0:0:ffff:977b:77e6
151.123.119.231 0:0:0:0:0:ffff:977b:77e7
151.123.119.232 0:0:0:0:0:ffff:977b:77e8
151.123.119.233 0:0:0:0:0:ffff:977b:77e9
151.123.119.234 0:0:0:0:0:ffff:977b:77ea
151.123.119.235 0:0:0:0:0:ffff:977b:77eb
151.123.119.236 0:0:0:0:0:ffff:977b:77ec
151.123.119.237 0:0:0:0:0:ffff:977b:77ed
151.123.119.238 0:0:0:0:0:ffff:977b:77ee
151.123.119.239 0:0:0:0:0:ffff:977b:77ef
151.123.119.240 0:0:0:0:0:ffff:977b:77f0
151.123.119.241 0:0:0:0:0:ffff:977b:77f1
151.123.119.242 0:0:0:0:0:ffff:977b:77f2
151.123.119.243 0:0:0:0:0:ffff:977b:77f3
151.123.119.244 0:0:0:0:0:ffff:977b:77f4
151.123.119.245 0:0:0:0:0:ffff:977b:77f5
151.123.119.246 0:0:0:0:0:ffff:977b:77f6
151.123.119.247 0:0:0:0:0:ffff:977b:77f7
151.123.119.248 0:0:0:0:0:ffff:977b:77f8
151.123.119.249 0:0:0:0:0:ffff:977b:77f9
151.123.119.250 0:0:0:0:0:ffff:977b:77fa
151.123.119.251 0:0:0:0:0:ffff:977b:77fb
151.123.119.252 0:0:0:0:0:ffff:977b:77fc
151.123.119.253 0:0:0:0:0:ffff:977b:77fd
151.123.119.254 0:0:0:0:0:ffff:977b:77fe
151.123.119.255 0:0:0:0:0:ffff:977b:77ff


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.