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
8.129.103.1 0:0:0:0:0:ffff:881:6701
8.129.103.2 0:0:0:0:0:ffff:881:6702
8.129.103.3 0:0:0:0:0:ffff:881:6703
8.129.103.4 0:0:0:0:0:ffff:881:6704
8.129.103.5 0:0:0:0:0:ffff:881:6705
8.129.103.6 0:0:0:0:0:ffff:881:6706
8.129.103.7 0:0:0:0:0:ffff:881:6707
8.129.103.8 0:0:0:0:0:ffff:881:6708
8.129.103.9 0:0:0:0:0:ffff:881:6709
8.129.103.10 0:0:0:0:0:ffff:881:670a
8.129.103.11 0:0:0:0:0:ffff:881:670b
8.129.103.12 0:0:0:0:0:ffff:881:670c
8.129.103.13 0:0:0:0:0:ffff:881:670d
8.129.103.14 0:0:0:0:0:ffff:881:670e
8.129.103.15 0:0:0:0:0:ffff:881:670f
8.129.103.16 0:0:0:0:0:ffff:881:6710
8.129.103.17 0:0:0:0:0:ffff:881:6711
8.129.103.18 0:0:0:0:0:ffff:881:6712
8.129.103.19 0:0:0:0:0:ffff:881:6713
8.129.103.20 0:0:0:0:0:ffff:881:6714
8.129.103.21 0:0:0:0:0:ffff:881:6715
8.129.103.22 0:0:0:0:0:ffff:881:6716
8.129.103.23 0:0:0:0:0:ffff:881:6717
8.129.103.24 0:0:0:0:0:ffff:881:6718
8.129.103.25 0:0:0:0:0:ffff:881:6719
8.129.103.26 0:0:0:0:0:ffff:881:671a
8.129.103.27 0:0:0:0:0:ffff:881:671b
8.129.103.28 0:0:0:0:0:ffff:881:671c
8.129.103.29 0:0:0:0:0:ffff:881:671d
8.129.103.30 0:0:0:0:0:ffff:881:671e
8.129.103.31 0:0:0:0:0:ffff:881:671f
8.129.103.32 0:0:0:0:0:ffff:881:6720
8.129.103.33 0:0:0:0:0:ffff:881:6721
8.129.103.34 0:0:0:0:0:ffff:881:6722
8.129.103.35 0:0:0:0:0:ffff:881:6723
8.129.103.36 0:0:0:0:0:ffff:881:6724
8.129.103.37 0:0:0:0:0:ffff:881:6725
8.129.103.38 0:0:0:0:0:ffff:881:6726
8.129.103.39 0:0:0:0:0:ffff:881:6727
8.129.103.40 0:0:0:0:0:ffff:881:6728
8.129.103.41 0:0:0:0:0:ffff:881:6729
8.129.103.42 0:0:0:0:0:ffff:881:672a
8.129.103.43 0:0:0:0:0:ffff:881:672b
8.129.103.44 0:0:0:0:0:ffff:881:672c
8.129.103.45 0:0:0:0:0:ffff:881:672d
8.129.103.46 0:0:0:0:0:ffff:881:672e
8.129.103.47 0:0:0:0:0:ffff:881:672f
8.129.103.48 0:0:0:0:0:ffff:881:6730
8.129.103.49 0:0:0:0:0:ffff:881:6731
8.129.103.50 0:0:0:0:0:ffff:881:6732
8.129.103.51 0:0:0:0:0:ffff:881:6733
8.129.103.52 0:0:0:0:0:ffff:881:6734
8.129.103.53 0:0:0:0:0:ffff:881:6735
8.129.103.54 0:0:0:0:0:ffff:881:6736
8.129.103.55 0:0:0:0:0:ffff:881:6737
8.129.103.56 0:0:0:0:0:ffff:881:6738
8.129.103.57 0:0:0:0:0:ffff:881:6739
8.129.103.58 0:0:0:0:0:ffff:881:673a
8.129.103.59 0:0:0:0:0:ffff:881:673b
8.129.103.60 0:0:0:0:0:ffff:881:673c


8.129.103.61 0:0:0:0:0:ffff:881:673d
8.129.103.62 0:0:0:0:0:ffff:881:673e
8.129.103.63 0:0:0:0:0:ffff:881:673f
8.129.103.64 0:0:0:0:0:ffff:881:6740
8.129.103.65 0:0:0:0:0:ffff:881:6741
8.129.103.66 0:0:0:0:0:ffff:881:6742
8.129.103.67 0:0:0:0:0:ffff:881:6743
8.129.103.68 0:0:0:0:0:ffff:881:6744
8.129.103.69 0:0:0:0:0:ffff:881:6745
8.129.103.70 0:0:0:0:0:ffff:881:6746
8.129.103.71 0:0:0:0:0:ffff:881:6747
8.129.103.72 0:0:0:0:0:ffff:881:6748
8.129.103.73 0:0:0:0:0:ffff:881:6749
8.129.103.74 0:0:0:0:0:ffff:881:674a
8.129.103.75 0:0:0:0:0:ffff:881:674b
8.129.103.76 0:0:0:0:0:ffff:881:674c
8.129.103.77 0:0:0:0:0:ffff:881:674d
8.129.103.78 0:0:0:0:0:ffff:881:674e
8.129.103.79 0:0:0:0:0:ffff:881:674f
8.129.103.80 0:0:0:0:0:ffff:881:6750
8.129.103.81 0:0:0:0:0:ffff:881:6751
8.129.103.82 0:0:0:0:0:ffff:881:6752
8.129.103.83 0:0:0:0:0:ffff:881:6753
8.129.103.84 0:0:0:0:0:ffff:881:6754
8.129.103.85 0:0:0:0:0:ffff:881:6755
8.129.103.86 0:0:0:0:0:ffff:881:6756
8.129.103.87 0:0:0:0:0:ffff:881:6757
8.129.103.88 0:0:0:0:0:ffff:881:6758
8.129.103.89 0:0:0:0:0:ffff:881:6759
8.129.103.90 0:0:0:0:0:ffff:881:675a
8.129.103.91 0:0:0:0:0:ffff:881:675b
8.129.103.92 0:0:0:0:0:ffff:881:675c
8.129.103.93 0:0:0:0:0:ffff:881:675d
8.129.103.94 0:0:0:0:0:ffff:881:675e
8.129.103.95 0:0:0:0:0:ffff:881:675f
8.129.103.96 0:0:0:0:0:ffff:881:6760
8.129.103.97 0:0:0:0:0:ffff:881:6761
8.129.103.98 0:0:0:0:0:ffff:881:6762
8.129.103.99 0:0:0:0:0:ffff:881:6763
8.129.103.100 0:0:0:0:0:ffff:881:6764
8.129.103.101 0:0:0:0:0:ffff:881:6765
8.129.103.102 0:0:0:0:0:ffff:881:6766
8.129.103.103 0:0:0:0:0:ffff:881:6767
8.129.103.104 0:0:0:0:0:ffff:881:6768
8.129.103.105 0:0:0:0:0:ffff:881:6769
8.129.103.106 0:0:0:0:0:ffff:881:676a
8.129.103.107 0:0:0:0:0:ffff:881:676b
8.129.103.108 0:0:0:0:0:ffff:881:676c
8.129.103.109 0:0:0:0:0:ffff:881:676d
8.129.103.110 0:0:0:0:0:ffff:881:676e
8.129.103.111 0:0:0:0:0:ffff:881:676f
8.129.103.112 0:0:0:0:0:ffff:881:6770
8.129.103.113 0:0:0:0:0:ffff:881:6771
8.129.103.114 0:0:0:0:0:ffff:881:6772
8.129.103.115 0:0:0:0:0:ffff:881:6773
8.129.103.116 0:0:0:0:0:ffff:881:6774
8.129.103.117 0:0:0:0:0:ffff:881:6775
8.129.103.118 0:0:0:0:0:ffff:881:6776
8.129.103.119 0:0:0:0:0:ffff:881:6777
8.129.103.120 0:0:0:0:0:ffff:881:6778


8.129.103.121 0:0:0:0:0:ffff:881:6779
8.129.103.122 0:0:0:0:0:ffff:881:677a
8.129.103.123 0:0:0:0:0:ffff:881:677b
8.129.103.124 0:0:0:0:0:ffff:881:677c
8.129.103.125 0:0:0:0:0:ffff:881:677d
8.129.103.126 0:0:0:0:0:ffff:881:677e
8.129.103.127 0:0:0:0:0:ffff:881:677f
8.129.103.128 0:0:0:0:0:ffff:881:6780
8.129.103.129 0:0:0:0:0:ffff:881:6781
8.129.103.130 0:0:0:0:0:ffff:881:6782
8.129.103.131 0:0:0:0:0:ffff:881:6783
8.129.103.132 0:0:0:0:0:ffff:881:6784
8.129.103.133 0:0:0:0:0:ffff:881:6785
8.129.103.134 0:0:0:0:0:ffff:881:6786
8.129.103.135 0:0:0:0:0:ffff:881:6787
8.129.103.136 0:0:0:0:0:ffff:881:6788
8.129.103.137 0:0:0:0:0:ffff:881:6789
8.129.103.138 0:0:0:0:0:ffff:881:678a
8.129.103.139 0:0:0:0:0:ffff:881:678b
8.129.103.140 0:0:0:0:0:ffff:881:678c
8.129.103.141 0:0:0:0:0:ffff:881:678d
8.129.103.142 0:0:0:0:0:ffff:881:678e
8.129.103.143 0:0:0:0:0:ffff:881:678f
8.129.103.144 0:0:0:0:0:ffff:881:6790
8.129.103.145 0:0:0:0:0:ffff:881:6791
8.129.103.146 0:0:0:0:0:ffff:881:6792
8.129.103.147 0:0:0:0:0:ffff:881:6793
8.129.103.148 0:0:0:0:0:ffff:881:6794
8.129.103.149 0:0:0:0:0:ffff:881:6795
8.129.103.150 0:0:0:0:0:ffff:881:6796
8.129.103.151 0:0:0:0:0:ffff:881:6797
8.129.103.152 0:0:0:0:0:ffff:881:6798
8.129.103.153 0:0:0:0:0:ffff:881:6799
8.129.103.154 0:0:0:0:0:ffff:881:679a
8.129.103.155 0:0:0:0:0:ffff:881:679b
8.129.103.156 0:0:0:0:0:ffff:881:679c
8.129.103.157 0:0:0:0:0:ffff:881:679d
8.129.103.158 0:0:0:0:0:ffff:881:679e
8.129.103.159 0:0:0:0:0:ffff:881:679f
8.129.103.160 0:0:0:0:0:ffff:881:67a0
8.129.103.161 0:0:0:0:0:ffff:881:67a1
8.129.103.162 0:0:0:0:0:ffff:881:67a2
8.129.103.163 0:0:0:0:0:ffff:881:67a3
8.129.103.164 0:0:0:0:0:ffff:881:67a4
8.129.103.165 0:0:0:0:0:ffff:881:67a5
8.129.103.166 0:0:0:0:0:ffff:881:67a6
8.129.103.167 0:0:0:0:0:ffff:881:67a7
8.129.103.168 0:0:0:0:0:ffff:881:67a8
8.129.103.169 0:0:0:0:0:ffff:881:67a9
8.129.103.170 0:0:0:0:0:ffff:881:67aa
8.129.103.171 0:0:0:0:0:ffff:881:67ab
8.129.103.172 0:0:0:0:0:ffff:881:67ac
8.129.103.173 0:0:0:0:0:ffff:881:67ad
8.129.103.174 0:0:0:0:0:ffff:881:67ae
8.129.103.175 0:0:0:0:0:ffff:881:67af
8.129.103.176 0:0:0:0:0:ffff:881:67b0
8.129.103.177 0:0:0:0:0:ffff:881:67b1
8.129.103.178 0:0:0:0:0:ffff:881:67b2
8.129.103.179 0:0:0:0:0:ffff:881:67b3
8.129.103.180 0:0:0:0:0:ffff:881:67b4


8.129.103.181 0:0:0:0:0:ffff:881:67b5
8.129.103.182 0:0:0:0:0:ffff:881:67b6
8.129.103.183 0:0:0:0:0:ffff:881:67b7
8.129.103.184 0:0:0:0:0:ffff:881:67b8
8.129.103.185 0:0:0:0:0:ffff:881:67b9
8.129.103.186 0:0:0:0:0:ffff:881:67ba
8.129.103.187 0:0:0:0:0:ffff:881:67bb
8.129.103.188 0:0:0:0:0:ffff:881:67bc
8.129.103.189 0:0:0:0:0:ffff:881:67bd
8.129.103.190 0:0:0:0:0:ffff:881:67be
8.129.103.191 0:0:0:0:0:ffff:881:67bf
8.129.103.192 0:0:0:0:0:ffff:881:67c0
8.129.103.193 0:0:0:0:0:ffff:881:67c1
8.129.103.194 0:0:0:0:0:ffff:881:67c2
8.129.103.195 0:0:0:0:0:ffff:881:67c3
8.129.103.196 0:0:0:0:0:ffff:881:67c4
8.129.103.197 0:0:0:0:0:ffff:881:67c5
8.129.103.198 0:0:0:0:0:ffff:881:67c6
8.129.103.199 0:0:0:0:0:ffff:881:67c7
8.129.103.200 0:0:0:0:0:ffff:881:67c8
8.129.103.201 0:0:0:0:0:ffff:881:67c9
8.129.103.202 0:0:0:0:0:ffff:881:67ca
8.129.103.203 0:0:0:0:0:ffff:881:67cb
8.129.103.204 0:0:0:0:0:ffff:881:67cc
8.129.103.205 0:0:0:0:0:ffff:881:67cd
8.129.103.206 0:0:0:0:0:ffff:881:67ce
8.129.103.207 0:0:0:0:0:ffff:881:67cf
8.129.103.208 0:0:0:0:0:ffff:881:67d0
8.129.103.209 0:0:0:0:0:ffff:881:67d1
8.129.103.210 0:0:0:0:0:ffff:881:67d2
8.129.103.211 0:0:0:0:0:ffff:881:67d3
8.129.103.212 0:0:0:0:0:ffff:881:67d4
8.129.103.213 0:0:0:0:0:ffff:881:67d5
8.129.103.214 0:0:0:0:0:ffff:881:67d6
8.129.103.215 0:0:0:0:0:ffff:881:67d7
8.129.103.216 0:0:0:0:0:ffff:881:67d8
8.129.103.217 0:0:0:0:0:ffff:881:67d9
8.129.103.218 0:0:0:0:0:ffff:881:67da
8.129.103.219 0:0:0:0:0:ffff:881:67db
8.129.103.220 0:0:0:0:0:ffff:881:67dc
8.129.103.221 0:0:0:0:0:ffff:881:67dd
8.129.103.222 0:0:0:0:0:ffff:881:67de
8.129.103.223 0:0:0:0:0:ffff:881:67df
8.129.103.224 0:0:0:0:0:ffff:881:67e0
8.129.103.225 0:0:0:0:0:ffff:881:67e1
8.129.103.226 0:0:0:0:0:ffff:881:67e2
8.129.103.227 0:0:0:0:0:ffff:881:67e3
8.129.103.228 0:0:0:0:0:ffff:881:67e4
8.129.103.229 0:0:0:0:0:ffff:881:67e5
8.129.103.230 0:0:0:0:0:ffff:881:67e6
8.129.103.231 0:0:0:0:0:ffff:881:67e7
8.129.103.232 0:0:0:0:0:ffff:881:67e8
8.129.103.233 0:0:0:0:0:ffff:881:67e9
8.129.103.234 0:0:0:0:0:ffff:881:67ea
8.129.103.235 0:0:0:0:0:ffff:881:67eb
8.129.103.236 0:0:0:0:0:ffff:881:67ec
8.129.103.237 0:0:0:0:0:ffff:881:67ed
8.129.103.238 0:0:0:0:0:ffff:881:67ee
8.129.103.239 0:0:0:0:0:ffff:881:67ef
8.129.103.240 0:0:0:0:0:ffff:881:67f0
8.129.103.241 0:0:0:0:0:ffff:881:67f1
8.129.103.242 0:0:0:0:0:ffff:881:67f2
8.129.103.243 0:0:0:0:0:ffff:881:67f3
8.129.103.244 0:0:0:0:0:ffff:881:67f4
8.129.103.245 0:0:0:0:0:ffff:881:67f5
8.129.103.246 0:0:0:0:0:ffff:881:67f6
8.129.103.247 0:0:0:0:0:ffff:881:67f7
8.129.103.248 0:0:0:0:0:ffff:881:67f8
8.129.103.249 0:0:0:0:0:ffff:881:67f9
8.129.103.250 0:0:0:0:0:ffff:881:67fa
8.129.103.251 0:0:0:0:0:ffff:881:67fb
8.129.103.252 0:0:0:0:0:ffff:881:67fc
8.129.103.253 0:0:0:0:0:ffff:881:67fd
8.129.103.254 0:0:0:0:0:ffff:881:67fe
8.129.103.255 0:0:0:0:0:ffff:881:67ff


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.