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
3.123.104.1 0:0:0:0:0:ffff:37b:6801
3.123.104.2 0:0:0:0:0:ffff:37b:6802
3.123.104.3 0:0:0:0:0:ffff:37b:6803
3.123.104.4 0:0:0:0:0:ffff:37b:6804
3.123.104.5 0:0:0:0:0:ffff:37b:6805
3.123.104.6 0:0:0:0:0:ffff:37b:6806
3.123.104.7 0:0:0:0:0:ffff:37b:6807
3.123.104.8 0:0:0:0:0:ffff:37b:6808
3.123.104.9 0:0:0:0:0:ffff:37b:6809
3.123.104.10 0:0:0:0:0:ffff:37b:680a
3.123.104.11 0:0:0:0:0:ffff:37b:680b
3.123.104.12 0:0:0:0:0:ffff:37b:680c
3.123.104.13 0:0:0:0:0:ffff:37b:680d
3.123.104.14 0:0:0:0:0:ffff:37b:680e
3.123.104.15 0:0:0:0:0:ffff:37b:680f
3.123.104.16 0:0:0:0:0:ffff:37b:6810
3.123.104.17 0:0:0:0:0:ffff:37b:6811
3.123.104.18 0:0:0:0:0:ffff:37b:6812
3.123.104.19 0:0:0:0:0:ffff:37b:6813
3.123.104.20 0:0:0:0:0:ffff:37b:6814
3.123.104.21 0:0:0:0:0:ffff:37b:6815
3.123.104.22 0:0:0:0:0:ffff:37b:6816
3.123.104.23 0:0:0:0:0:ffff:37b:6817
3.123.104.24 0:0:0:0:0:ffff:37b:6818
3.123.104.25 0:0:0:0:0:ffff:37b:6819
3.123.104.26 0:0:0:0:0:ffff:37b:681a
3.123.104.27 0:0:0:0:0:ffff:37b:681b
3.123.104.28 0:0:0:0:0:ffff:37b:681c
3.123.104.29 0:0:0:0:0:ffff:37b:681d
3.123.104.30 0:0:0:0:0:ffff:37b:681e
3.123.104.31 0:0:0:0:0:ffff:37b:681f
3.123.104.32 0:0:0:0:0:ffff:37b:6820
3.123.104.33 0:0:0:0:0:ffff:37b:6821
3.123.104.34 0:0:0:0:0:ffff:37b:6822
3.123.104.35 0:0:0:0:0:ffff:37b:6823
3.123.104.36 0:0:0:0:0:ffff:37b:6824
3.123.104.37 0:0:0:0:0:ffff:37b:6825
3.123.104.38 0:0:0:0:0:ffff:37b:6826
3.123.104.39 0:0:0:0:0:ffff:37b:6827
3.123.104.40 0:0:0:0:0:ffff:37b:6828
3.123.104.41 0:0:0:0:0:ffff:37b:6829
3.123.104.42 0:0:0:0:0:ffff:37b:682a
3.123.104.43 0:0:0:0:0:ffff:37b:682b
3.123.104.44 0:0:0:0:0:ffff:37b:682c
3.123.104.45 0:0:0:0:0:ffff:37b:682d
3.123.104.46 0:0:0:0:0:ffff:37b:682e
3.123.104.47 0:0:0:0:0:ffff:37b:682f
3.123.104.48 0:0:0:0:0:ffff:37b:6830
3.123.104.49 0:0:0:0:0:ffff:37b:6831
3.123.104.50 0:0:0:0:0:ffff:37b:6832
3.123.104.51 0:0:0:0:0:ffff:37b:6833
3.123.104.52 0:0:0:0:0:ffff:37b:6834
3.123.104.53 0:0:0:0:0:ffff:37b:6835
3.123.104.54 0:0:0:0:0:ffff:37b:6836
3.123.104.55 0:0:0:0:0:ffff:37b:6837
3.123.104.56 0:0:0:0:0:ffff:37b:6838
3.123.104.57 0:0:0:0:0:ffff:37b:6839
3.123.104.58 0:0:0:0:0:ffff:37b:683a
3.123.104.59 0:0:0:0:0:ffff:37b:683b
3.123.104.60 0:0:0:0:0:ffff:37b:683c


3.123.104.61 0:0:0:0:0:ffff:37b:683d
3.123.104.62 0:0:0:0:0:ffff:37b:683e
3.123.104.63 0:0:0:0:0:ffff:37b:683f
3.123.104.64 0:0:0:0:0:ffff:37b:6840
3.123.104.65 0:0:0:0:0:ffff:37b:6841
3.123.104.66 0:0:0:0:0:ffff:37b:6842
3.123.104.67 0:0:0:0:0:ffff:37b:6843
3.123.104.68 0:0:0:0:0:ffff:37b:6844
3.123.104.69 0:0:0:0:0:ffff:37b:6845
3.123.104.70 0:0:0:0:0:ffff:37b:6846
3.123.104.71 0:0:0:0:0:ffff:37b:6847
3.123.104.72 0:0:0:0:0:ffff:37b:6848
3.123.104.73 0:0:0:0:0:ffff:37b:6849
3.123.104.74 0:0:0:0:0:ffff:37b:684a
3.123.104.75 0:0:0:0:0:ffff:37b:684b
3.123.104.76 0:0:0:0:0:ffff:37b:684c
3.123.104.77 0:0:0:0:0:ffff:37b:684d
3.123.104.78 0:0:0:0:0:ffff:37b:684e
3.123.104.79 0:0:0:0:0:ffff:37b:684f
3.123.104.80 0:0:0:0:0:ffff:37b:6850
3.123.104.81 0:0:0:0:0:ffff:37b:6851
3.123.104.82 0:0:0:0:0:ffff:37b:6852
3.123.104.83 0:0:0:0:0:ffff:37b:6853
3.123.104.84 0:0:0:0:0:ffff:37b:6854
3.123.104.85 0:0:0:0:0:ffff:37b:6855
3.123.104.86 0:0:0:0:0:ffff:37b:6856
3.123.104.87 0:0:0:0:0:ffff:37b:6857
3.123.104.88 0:0:0:0:0:ffff:37b:6858
3.123.104.89 0:0:0:0:0:ffff:37b:6859
3.123.104.90 0:0:0:0:0:ffff:37b:685a
3.123.104.91 0:0:0:0:0:ffff:37b:685b
3.123.104.92 0:0:0:0:0:ffff:37b:685c
3.123.104.93 0:0:0:0:0:ffff:37b:685d
3.123.104.94 0:0:0:0:0:ffff:37b:685e
3.123.104.95 0:0:0:0:0:ffff:37b:685f
3.123.104.96 0:0:0:0:0:ffff:37b:6860
3.123.104.97 0:0:0:0:0:ffff:37b:6861
3.123.104.98 0:0:0:0:0:ffff:37b:6862
3.123.104.99 0:0:0:0:0:ffff:37b:6863
3.123.104.100 0:0:0:0:0:ffff:37b:6864
3.123.104.101 0:0:0:0:0:ffff:37b:6865
3.123.104.102 0:0:0:0:0:ffff:37b:6866
3.123.104.103 0:0:0:0:0:ffff:37b:6867
3.123.104.104 0:0:0:0:0:ffff:37b:6868
3.123.104.105 0:0:0:0:0:ffff:37b:6869
3.123.104.106 0:0:0:0:0:ffff:37b:686a
3.123.104.107 0:0:0:0:0:ffff:37b:686b
3.123.104.108 0:0:0:0:0:ffff:37b:686c
3.123.104.109 0:0:0:0:0:ffff:37b:686d
3.123.104.110 0:0:0:0:0:ffff:37b:686e
3.123.104.111 0:0:0:0:0:ffff:37b:686f
3.123.104.112 0:0:0:0:0:ffff:37b:6870
3.123.104.113 0:0:0:0:0:ffff:37b:6871
3.123.104.114 0:0:0:0:0:ffff:37b:6872
3.123.104.115 0:0:0:0:0:ffff:37b:6873
3.123.104.116 0:0:0:0:0:ffff:37b:6874
3.123.104.117 0:0:0:0:0:ffff:37b:6875
3.123.104.118 0:0:0:0:0:ffff:37b:6876
3.123.104.119 0:0:0:0:0:ffff:37b:6877
3.123.104.120 0:0:0:0:0:ffff:37b:6878


3.123.104.121 0:0:0:0:0:ffff:37b:6879
3.123.104.122 0:0:0:0:0:ffff:37b:687a
3.123.104.123 0:0:0:0:0:ffff:37b:687b
3.123.104.124 0:0:0:0:0:ffff:37b:687c
3.123.104.125 0:0:0:0:0:ffff:37b:687d
3.123.104.126 0:0:0:0:0:ffff:37b:687e
3.123.104.127 0:0:0:0:0:ffff:37b:687f
3.123.104.128 0:0:0:0:0:ffff:37b:6880
3.123.104.129 0:0:0:0:0:ffff:37b:6881
3.123.104.130 0:0:0:0:0:ffff:37b:6882
3.123.104.131 0:0:0:0:0:ffff:37b:6883
3.123.104.132 0:0:0:0:0:ffff:37b:6884
3.123.104.133 0:0:0:0:0:ffff:37b:6885
3.123.104.134 0:0:0:0:0:ffff:37b:6886
3.123.104.135 0:0:0:0:0:ffff:37b:6887
3.123.104.136 0:0:0:0:0:ffff:37b:6888
3.123.104.137 0:0:0:0:0:ffff:37b:6889
3.123.104.138 0:0:0:0:0:ffff:37b:688a
3.123.104.139 0:0:0:0:0:ffff:37b:688b
3.123.104.140 0:0:0:0:0:ffff:37b:688c
3.123.104.141 0:0:0:0:0:ffff:37b:688d
3.123.104.142 0:0:0:0:0:ffff:37b:688e
3.123.104.143 0:0:0:0:0:ffff:37b:688f
3.123.104.144 0:0:0:0:0:ffff:37b:6890
3.123.104.145 0:0:0:0:0:ffff:37b:6891
3.123.104.146 0:0:0:0:0:ffff:37b:6892
3.123.104.147 0:0:0:0:0:ffff:37b:6893
3.123.104.148 0:0:0:0:0:ffff:37b:6894
3.123.104.149 0:0:0:0:0:ffff:37b:6895
3.123.104.150 0:0:0:0:0:ffff:37b:6896
3.123.104.151 0:0:0:0:0:ffff:37b:6897
3.123.104.152 0:0:0:0:0:ffff:37b:6898
3.123.104.153 0:0:0:0:0:ffff:37b:6899
3.123.104.154 0:0:0:0:0:ffff:37b:689a
3.123.104.155 0:0:0:0:0:ffff:37b:689b
3.123.104.156 0:0:0:0:0:ffff:37b:689c
3.123.104.157 0:0:0:0:0:ffff:37b:689d
3.123.104.158 0:0:0:0:0:ffff:37b:689e
3.123.104.159 0:0:0:0:0:ffff:37b:689f
3.123.104.160 0:0:0:0:0:ffff:37b:68a0
3.123.104.161 0:0:0:0:0:ffff:37b:68a1
3.123.104.162 0:0:0:0:0:ffff:37b:68a2
3.123.104.163 0:0:0:0:0:ffff:37b:68a3
3.123.104.164 0:0:0:0:0:ffff:37b:68a4
3.123.104.165 0:0:0:0:0:ffff:37b:68a5
3.123.104.166 0:0:0:0:0:ffff:37b:68a6
3.123.104.167 0:0:0:0:0:ffff:37b:68a7
3.123.104.168 0:0:0:0:0:ffff:37b:68a8
3.123.104.169 0:0:0:0:0:ffff:37b:68a9
3.123.104.170 0:0:0:0:0:ffff:37b:68aa
3.123.104.171 0:0:0:0:0:ffff:37b:68ab
3.123.104.172 0:0:0:0:0:ffff:37b:68ac
3.123.104.173 0:0:0:0:0:ffff:37b:68ad
3.123.104.174 0:0:0:0:0:ffff:37b:68ae
3.123.104.175 0:0:0:0:0:ffff:37b:68af
3.123.104.176 0:0:0:0:0:ffff:37b:68b0
3.123.104.177 0:0:0:0:0:ffff:37b:68b1
3.123.104.178 0:0:0:0:0:ffff:37b:68b2
3.123.104.179 0:0:0:0:0:ffff:37b:68b3
3.123.104.180 0:0:0:0:0:ffff:37b:68b4


3.123.104.181 0:0:0:0:0:ffff:37b:68b5
3.123.104.182 0:0:0:0:0:ffff:37b:68b6
3.123.104.183 0:0:0:0:0:ffff:37b:68b7
3.123.104.184 0:0:0:0:0:ffff:37b:68b8
3.123.104.185 0:0:0:0:0:ffff:37b:68b9
3.123.104.186 0:0:0:0:0:ffff:37b:68ba
3.123.104.187 0:0:0:0:0:ffff:37b:68bb
3.123.104.188 0:0:0:0:0:ffff:37b:68bc
3.123.104.189 0:0:0:0:0:ffff:37b:68bd
3.123.104.190 0:0:0:0:0:ffff:37b:68be
3.123.104.191 0:0:0:0:0:ffff:37b:68bf
3.123.104.192 0:0:0:0:0:ffff:37b:68c0
3.123.104.193 0:0:0:0:0:ffff:37b:68c1
3.123.104.194 0:0:0:0:0:ffff:37b:68c2
3.123.104.195 0:0:0:0:0:ffff:37b:68c3
3.123.104.196 0:0:0:0:0:ffff:37b:68c4
3.123.104.197 0:0:0:0:0:ffff:37b:68c5
3.123.104.198 0:0:0:0:0:ffff:37b:68c6
3.123.104.199 0:0:0:0:0:ffff:37b:68c7
3.123.104.200 0:0:0:0:0:ffff:37b:68c8
3.123.104.201 0:0:0:0:0:ffff:37b:68c9
3.123.104.202 0:0:0:0:0:ffff:37b:68ca
3.123.104.203 0:0:0:0:0:ffff:37b:68cb
3.123.104.204 0:0:0:0:0:ffff:37b:68cc
3.123.104.205 0:0:0:0:0:ffff:37b:68cd
3.123.104.206 0:0:0:0:0:ffff:37b:68ce
3.123.104.207 0:0:0:0:0:ffff:37b:68cf
3.123.104.208 0:0:0:0:0:ffff:37b:68d0
3.123.104.209 0:0:0:0:0:ffff:37b:68d1
3.123.104.210 0:0:0:0:0:ffff:37b:68d2
3.123.104.211 0:0:0:0:0:ffff:37b:68d3
3.123.104.212 0:0:0:0:0:ffff:37b:68d4
3.123.104.213 0:0:0:0:0:ffff:37b:68d5
3.123.104.214 0:0:0:0:0:ffff:37b:68d6
3.123.104.215 0:0:0:0:0:ffff:37b:68d7
3.123.104.216 0:0:0:0:0:ffff:37b:68d8
3.123.104.217 0:0:0:0:0:ffff:37b:68d9
3.123.104.218 0:0:0:0:0:ffff:37b:68da
3.123.104.219 0:0:0:0:0:ffff:37b:68db
3.123.104.220 0:0:0:0:0:ffff:37b:68dc
3.123.104.221 0:0:0:0:0:ffff:37b:68dd
3.123.104.222 0:0:0:0:0:ffff:37b:68de
3.123.104.223 0:0:0:0:0:ffff:37b:68df
3.123.104.224 0:0:0:0:0:ffff:37b:68e0
3.123.104.225 0:0:0:0:0:ffff:37b:68e1
3.123.104.226 0:0:0:0:0:ffff:37b:68e2
3.123.104.227 0:0:0:0:0:ffff:37b:68e3
3.123.104.228 0:0:0:0:0:ffff:37b:68e4
3.123.104.229 0:0:0:0:0:ffff:37b:68e5
3.123.104.230 0:0:0:0:0:ffff:37b:68e6
3.123.104.231 0:0:0:0:0:ffff:37b:68e7
3.123.104.232 0:0:0:0:0:ffff:37b:68e8
3.123.104.233 0:0:0:0:0:ffff:37b:68e9
3.123.104.234 0:0:0:0:0:ffff:37b:68ea
3.123.104.235 0:0:0:0:0:ffff:37b:68eb
3.123.104.236 0:0:0:0:0:ffff:37b:68ec
3.123.104.237 0:0:0:0:0:ffff:37b:68ed
3.123.104.238 0:0:0:0:0:ffff:37b:68ee
3.123.104.239 0:0:0:0:0:ffff:37b:68ef
3.123.104.240 0:0:0:0:0:ffff:37b:68f0
3.123.104.241 0:0:0:0:0:ffff:37b:68f1
3.123.104.242 0:0:0:0:0:ffff:37b:68f2
3.123.104.243 0:0:0:0:0:ffff:37b:68f3
3.123.104.244 0:0:0:0:0:ffff:37b:68f4
3.123.104.245 0:0:0:0:0:ffff:37b:68f5
3.123.104.246 0:0:0:0:0:ffff:37b:68f6
3.123.104.247 0:0:0:0:0:ffff:37b:68f7
3.123.104.248 0:0:0:0:0:ffff:37b:68f8
3.123.104.249 0:0:0:0:0:ffff:37b:68f9
3.123.104.250 0:0:0:0:0:ffff:37b:68fa
3.123.104.251 0:0:0:0:0:ffff:37b:68fb
3.123.104.252 0:0:0:0:0:ffff:37b:68fc
3.123.104.253 0:0:0:0:0:ffff:37b:68fd
3.123.104.254 0:0:0:0:0:ffff:37b:68fe
3.123.104.255 0:0:0:0:0:ffff:37b:68ff


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.