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
123.105.128.1 0:0:0:0:0:ffff:7b69:8001
123.105.128.2 0:0:0:0:0:ffff:7b69:8002
123.105.128.3 0:0:0:0:0:ffff:7b69:8003
123.105.128.4 0:0:0:0:0:ffff:7b69:8004
123.105.128.5 0:0:0:0:0:ffff:7b69:8005
123.105.128.6 0:0:0:0:0:ffff:7b69:8006
123.105.128.7 0:0:0:0:0:ffff:7b69:8007
123.105.128.8 0:0:0:0:0:ffff:7b69:8008
123.105.128.9 0:0:0:0:0:ffff:7b69:8009
123.105.128.10 0:0:0:0:0:ffff:7b69:800a
123.105.128.11 0:0:0:0:0:ffff:7b69:800b
123.105.128.12 0:0:0:0:0:ffff:7b69:800c
123.105.128.13 0:0:0:0:0:ffff:7b69:800d
123.105.128.14 0:0:0:0:0:ffff:7b69:800e
123.105.128.15 0:0:0:0:0:ffff:7b69:800f
123.105.128.16 0:0:0:0:0:ffff:7b69:8010
123.105.128.17 0:0:0:0:0:ffff:7b69:8011
123.105.128.18 0:0:0:0:0:ffff:7b69:8012
123.105.128.19 0:0:0:0:0:ffff:7b69:8013
123.105.128.20 0:0:0:0:0:ffff:7b69:8014
123.105.128.21 0:0:0:0:0:ffff:7b69:8015
123.105.128.22 0:0:0:0:0:ffff:7b69:8016
123.105.128.23 0:0:0:0:0:ffff:7b69:8017
123.105.128.24 0:0:0:0:0:ffff:7b69:8018
123.105.128.25 0:0:0:0:0:ffff:7b69:8019
123.105.128.26 0:0:0:0:0:ffff:7b69:801a
123.105.128.27 0:0:0:0:0:ffff:7b69:801b
123.105.128.28 0:0:0:0:0:ffff:7b69:801c
123.105.128.29 0:0:0:0:0:ffff:7b69:801d
123.105.128.30 0:0:0:0:0:ffff:7b69:801e
123.105.128.31 0:0:0:0:0:ffff:7b69:801f
123.105.128.32 0:0:0:0:0:ffff:7b69:8020
123.105.128.33 0:0:0:0:0:ffff:7b69:8021
123.105.128.34 0:0:0:0:0:ffff:7b69:8022
123.105.128.35 0:0:0:0:0:ffff:7b69:8023
123.105.128.36 0:0:0:0:0:ffff:7b69:8024
123.105.128.37 0:0:0:0:0:ffff:7b69:8025
123.105.128.38 0:0:0:0:0:ffff:7b69:8026
123.105.128.39 0:0:0:0:0:ffff:7b69:8027
123.105.128.40 0:0:0:0:0:ffff:7b69:8028
123.105.128.41 0:0:0:0:0:ffff:7b69:8029
123.105.128.42 0:0:0:0:0:ffff:7b69:802a
123.105.128.43 0:0:0:0:0:ffff:7b69:802b
123.105.128.44 0:0:0:0:0:ffff:7b69:802c
123.105.128.45 0:0:0:0:0:ffff:7b69:802d
123.105.128.46 0:0:0:0:0:ffff:7b69:802e
123.105.128.47 0:0:0:0:0:ffff:7b69:802f
123.105.128.48 0:0:0:0:0:ffff:7b69:8030
123.105.128.49 0:0:0:0:0:ffff:7b69:8031
123.105.128.50 0:0:0:0:0:ffff:7b69:8032
123.105.128.51 0:0:0:0:0:ffff:7b69:8033
123.105.128.52 0:0:0:0:0:ffff:7b69:8034
123.105.128.53 0:0:0:0:0:ffff:7b69:8035
123.105.128.54 0:0:0:0:0:ffff:7b69:8036
123.105.128.55 0:0:0:0:0:ffff:7b69:8037
123.105.128.56 0:0:0:0:0:ffff:7b69:8038
123.105.128.57 0:0:0:0:0:ffff:7b69:8039
123.105.128.58 0:0:0:0:0:ffff:7b69:803a
123.105.128.59 0:0:0:0:0:ffff:7b69:803b
123.105.128.60 0:0:0:0:0:ffff:7b69:803c


123.105.128.61 0:0:0:0:0:ffff:7b69:803d
123.105.128.62 0:0:0:0:0:ffff:7b69:803e
123.105.128.63 0:0:0:0:0:ffff:7b69:803f
123.105.128.64 0:0:0:0:0:ffff:7b69:8040
123.105.128.65 0:0:0:0:0:ffff:7b69:8041
123.105.128.66 0:0:0:0:0:ffff:7b69:8042
123.105.128.67 0:0:0:0:0:ffff:7b69:8043
123.105.128.68 0:0:0:0:0:ffff:7b69:8044
123.105.128.69 0:0:0:0:0:ffff:7b69:8045
123.105.128.70 0:0:0:0:0:ffff:7b69:8046
123.105.128.71 0:0:0:0:0:ffff:7b69:8047
123.105.128.72 0:0:0:0:0:ffff:7b69:8048
123.105.128.73 0:0:0:0:0:ffff:7b69:8049
123.105.128.74 0:0:0:0:0:ffff:7b69:804a
123.105.128.75 0:0:0:0:0:ffff:7b69:804b
123.105.128.76 0:0:0:0:0:ffff:7b69:804c
123.105.128.77 0:0:0:0:0:ffff:7b69:804d
123.105.128.78 0:0:0:0:0:ffff:7b69:804e
123.105.128.79 0:0:0:0:0:ffff:7b69:804f
123.105.128.80 0:0:0:0:0:ffff:7b69:8050
123.105.128.81 0:0:0:0:0:ffff:7b69:8051
123.105.128.82 0:0:0:0:0:ffff:7b69:8052
123.105.128.83 0:0:0:0:0:ffff:7b69:8053
123.105.128.84 0:0:0:0:0:ffff:7b69:8054
123.105.128.85 0:0:0:0:0:ffff:7b69:8055
123.105.128.86 0:0:0:0:0:ffff:7b69:8056
123.105.128.87 0:0:0:0:0:ffff:7b69:8057
123.105.128.88 0:0:0:0:0:ffff:7b69:8058
123.105.128.89 0:0:0:0:0:ffff:7b69:8059
123.105.128.90 0:0:0:0:0:ffff:7b69:805a
123.105.128.91 0:0:0:0:0:ffff:7b69:805b
123.105.128.92 0:0:0:0:0:ffff:7b69:805c
123.105.128.93 0:0:0:0:0:ffff:7b69:805d
123.105.128.94 0:0:0:0:0:ffff:7b69:805e
123.105.128.95 0:0:0:0:0:ffff:7b69:805f
123.105.128.96 0:0:0:0:0:ffff:7b69:8060
123.105.128.97 0:0:0:0:0:ffff:7b69:8061
123.105.128.98 0:0:0:0:0:ffff:7b69:8062
123.105.128.99 0:0:0:0:0:ffff:7b69:8063
123.105.128.100 0:0:0:0:0:ffff:7b69:8064
123.105.128.101 0:0:0:0:0:ffff:7b69:8065
123.105.128.102 0:0:0:0:0:ffff:7b69:8066
123.105.128.103 0:0:0:0:0:ffff:7b69:8067
123.105.128.104 0:0:0:0:0:ffff:7b69:8068
123.105.128.105 0:0:0:0:0:ffff:7b69:8069
123.105.128.106 0:0:0:0:0:ffff:7b69:806a
123.105.128.107 0:0:0:0:0:ffff:7b69:806b
123.105.128.108 0:0:0:0:0:ffff:7b69:806c
123.105.128.109 0:0:0:0:0:ffff:7b69:806d
123.105.128.110 0:0:0:0:0:ffff:7b69:806e
123.105.128.111 0:0:0:0:0:ffff:7b69:806f
123.105.128.112 0:0:0:0:0:ffff:7b69:8070
123.105.128.113 0:0:0:0:0:ffff:7b69:8071
123.105.128.114 0:0:0:0:0:ffff:7b69:8072
123.105.128.115 0:0:0:0:0:ffff:7b69:8073
123.105.128.116 0:0:0:0:0:ffff:7b69:8074
123.105.128.117 0:0:0:0:0:ffff:7b69:8075
123.105.128.118 0:0:0:0:0:ffff:7b69:8076
123.105.128.119 0:0:0:0:0:ffff:7b69:8077
123.105.128.120 0:0:0:0:0:ffff:7b69:8078


123.105.128.121 0:0:0:0:0:ffff:7b69:8079
123.105.128.122 0:0:0:0:0:ffff:7b69:807a
123.105.128.123 0:0:0:0:0:ffff:7b69:807b
123.105.128.124 0:0:0:0:0:ffff:7b69:807c
123.105.128.125 0:0:0:0:0:ffff:7b69:807d
123.105.128.126 0:0:0:0:0:ffff:7b69:807e
123.105.128.127 0:0:0:0:0:ffff:7b69:807f
123.105.128.128 0:0:0:0:0:ffff:7b69:8080
123.105.128.129 0:0:0:0:0:ffff:7b69:8081
123.105.128.130 0:0:0:0:0:ffff:7b69:8082
123.105.128.131 0:0:0:0:0:ffff:7b69:8083
123.105.128.132 0:0:0:0:0:ffff:7b69:8084
123.105.128.133 0:0:0:0:0:ffff:7b69:8085
123.105.128.134 0:0:0:0:0:ffff:7b69:8086
123.105.128.135 0:0:0:0:0:ffff:7b69:8087
123.105.128.136 0:0:0:0:0:ffff:7b69:8088
123.105.128.137 0:0:0:0:0:ffff:7b69:8089
123.105.128.138 0:0:0:0:0:ffff:7b69:808a
123.105.128.139 0:0:0:0:0:ffff:7b69:808b
123.105.128.140 0:0:0:0:0:ffff:7b69:808c
123.105.128.141 0:0:0:0:0:ffff:7b69:808d
123.105.128.142 0:0:0:0:0:ffff:7b69:808e
123.105.128.143 0:0:0:0:0:ffff:7b69:808f
123.105.128.144 0:0:0:0:0:ffff:7b69:8090
123.105.128.145 0:0:0:0:0:ffff:7b69:8091
123.105.128.146 0:0:0:0:0:ffff:7b69:8092
123.105.128.147 0:0:0:0:0:ffff:7b69:8093
123.105.128.148 0:0:0:0:0:ffff:7b69:8094
123.105.128.149 0:0:0:0:0:ffff:7b69:8095
123.105.128.150 0:0:0:0:0:ffff:7b69:8096
123.105.128.151 0:0:0:0:0:ffff:7b69:8097
123.105.128.152 0:0:0:0:0:ffff:7b69:8098
123.105.128.153 0:0:0:0:0:ffff:7b69:8099
123.105.128.154 0:0:0:0:0:ffff:7b69:809a
123.105.128.155 0:0:0:0:0:ffff:7b69:809b
123.105.128.156 0:0:0:0:0:ffff:7b69:809c
123.105.128.157 0:0:0:0:0:ffff:7b69:809d
123.105.128.158 0:0:0:0:0:ffff:7b69:809e
123.105.128.159 0:0:0:0:0:ffff:7b69:809f
123.105.128.160 0:0:0:0:0:ffff:7b69:80a0
123.105.128.161 0:0:0:0:0:ffff:7b69:80a1
123.105.128.162 0:0:0:0:0:ffff:7b69:80a2
123.105.128.163 0:0:0:0:0:ffff:7b69:80a3
123.105.128.164 0:0:0:0:0:ffff:7b69:80a4
123.105.128.165 0:0:0:0:0:ffff:7b69:80a5
123.105.128.166 0:0:0:0:0:ffff:7b69:80a6
123.105.128.167 0:0:0:0:0:ffff:7b69:80a7
123.105.128.168 0:0:0:0:0:ffff:7b69:80a8
123.105.128.169 0:0:0:0:0:ffff:7b69:80a9
123.105.128.170 0:0:0:0:0:ffff:7b69:80aa
123.105.128.171 0:0:0:0:0:ffff:7b69:80ab
123.105.128.172 0:0:0:0:0:ffff:7b69:80ac
123.105.128.173 0:0:0:0:0:ffff:7b69:80ad
123.105.128.174 0:0:0:0:0:ffff:7b69:80ae
123.105.128.175 0:0:0:0:0:ffff:7b69:80af
123.105.128.176 0:0:0:0:0:ffff:7b69:80b0
123.105.128.177 0:0:0:0:0:ffff:7b69:80b1
123.105.128.178 0:0:0:0:0:ffff:7b69:80b2
123.105.128.179 0:0:0:0:0:ffff:7b69:80b3
123.105.128.180 0:0:0:0:0:ffff:7b69:80b4


123.105.128.181 0:0:0:0:0:ffff:7b69:80b5
123.105.128.182 0:0:0:0:0:ffff:7b69:80b6
123.105.128.183 0:0:0:0:0:ffff:7b69:80b7
123.105.128.184 0:0:0:0:0:ffff:7b69:80b8
123.105.128.185 0:0:0:0:0:ffff:7b69:80b9
123.105.128.186 0:0:0:0:0:ffff:7b69:80ba
123.105.128.187 0:0:0:0:0:ffff:7b69:80bb
123.105.128.188 0:0:0:0:0:ffff:7b69:80bc
123.105.128.189 0:0:0:0:0:ffff:7b69:80bd
123.105.128.190 0:0:0:0:0:ffff:7b69:80be
123.105.128.191 0:0:0:0:0:ffff:7b69:80bf
123.105.128.192 0:0:0:0:0:ffff:7b69:80c0
123.105.128.193 0:0:0:0:0:ffff:7b69:80c1
123.105.128.194 0:0:0:0:0:ffff:7b69:80c2
123.105.128.195 0:0:0:0:0:ffff:7b69:80c3
123.105.128.196 0:0:0:0:0:ffff:7b69:80c4
123.105.128.197 0:0:0:0:0:ffff:7b69:80c5
123.105.128.198 0:0:0:0:0:ffff:7b69:80c6
123.105.128.199 0:0:0:0:0:ffff:7b69:80c7
123.105.128.200 0:0:0:0:0:ffff:7b69:80c8
123.105.128.201 0:0:0:0:0:ffff:7b69:80c9
123.105.128.202 0:0:0:0:0:ffff:7b69:80ca
123.105.128.203 0:0:0:0:0:ffff:7b69:80cb
123.105.128.204 0:0:0:0:0:ffff:7b69:80cc
123.105.128.205 0:0:0:0:0:ffff:7b69:80cd
123.105.128.206 0:0:0:0:0:ffff:7b69:80ce
123.105.128.207 0:0:0:0:0:ffff:7b69:80cf
123.105.128.208 0:0:0:0:0:ffff:7b69:80d0
123.105.128.209 0:0:0:0:0:ffff:7b69:80d1
123.105.128.210 0:0:0:0:0:ffff:7b69:80d2
123.105.128.211 0:0:0:0:0:ffff:7b69:80d3
123.105.128.212 0:0:0:0:0:ffff:7b69:80d4
123.105.128.213 0:0:0:0:0:ffff:7b69:80d5
123.105.128.214 0:0:0:0:0:ffff:7b69:80d6
123.105.128.215 0:0:0:0:0:ffff:7b69:80d7
123.105.128.216 0:0:0:0:0:ffff:7b69:80d8
123.105.128.217 0:0:0:0:0:ffff:7b69:80d9
123.105.128.218 0:0:0:0:0:ffff:7b69:80da
123.105.128.219 0:0:0:0:0:ffff:7b69:80db
123.105.128.220 0:0:0:0:0:ffff:7b69:80dc
123.105.128.221 0:0:0:0:0:ffff:7b69:80dd
123.105.128.222 0:0:0:0:0:ffff:7b69:80de
123.105.128.223 0:0:0:0:0:ffff:7b69:80df
123.105.128.224 0:0:0:0:0:ffff:7b69:80e0
123.105.128.225 0:0:0:0:0:ffff:7b69:80e1
123.105.128.226 0:0:0:0:0:ffff:7b69:80e2
123.105.128.227 0:0:0:0:0:ffff:7b69:80e3
123.105.128.228 0:0:0:0:0:ffff:7b69:80e4
123.105.128.229 0:0:0:0:0:ffff:7b69:80e5
123.105.128.230 0:0:0:0:0:ffff:7b69:80e6
123.105.128.231 0:0:0:0:0:ffff:7b69:80e7
123.105.128.232 0:0:0:0:0:ffff:7b69:80e8
123.105.128.233 0:0:0:0:0:ffff:7b69:80e9
123.105.128.234 0:0:0:0:0:ffff:7b69:80ea
123.105.128.235 0:0:0:0:0:ffff:7b69:80eb
123.105.128.236 0:0:0:0:0:ffff:7b69:80ec
123.105.128.237 0:0:0:0:0:ffff:7b69:80ed
123.105.128.238 0:0:0:0:0:ffff:7b69:80ee
123.105.128.239 0:0:0:0:0:ffff:7b69:80ef
123.105.128.240 0:0:0:0:0:ffff:7b69:80f0
123.105.128.241 0:0:0:0:0:ffff:7b69:80f1
123.105.128.242 0:0:0:0:0:ffff:7b69:80f2
123.105.128.243 0:0:0:0:0:ffff:7b69:80f3
123.105.128.244 0:0:0:0:0:ffff:7b69:80f4
123.105.128.245 0:0:0:0:0:ffff:7b69:80f5
123.105.128.246 0:0:0:0:0:ffff:7b69:80f6
123.105.128.247 0:0:0:0:0:ffff:7b69:80f7
123.105.128.248 0:0:0:0:0:ffff:7b69:80f8
123.105.128.249 0:0:0:0:0:ffff:7b69:80f9
123.105.128.250 0:0:0:0:0:ffff:7b69:80fa
123.105.128.251 0:0:0:0:0:ffff:7b69:80fb
123.105.128.252 0:0:0:0:0:ffff:7b69:80fc
123.105.128.253 0:0:0:0:0:ffff:7b69:80fd
123.105.128.254 0:0:0:0:0:ffff:7b69:80fe
123.105.128.255 0:0:0:0:0:ffff:7b69:80ff


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.