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
3.123.158.1 0:0:0:0:0:ffff:37b:9e01
3.123.158.2 0:0:0:0:0:ffff:37b:9e02
3.123.158.3 0:0:0:0:0:ffff:37b:9e03
3.123.158.4 0:0:0:0:0:ffff:37b:9e04
3.123.158.5 0:0:0:0:0:ffff:37b:9e05
3.123.158.6 0:0:0:0:0:ffff:37b:9e06
3.123.158.7 0:0:0:0:0:ffff:37b:9e07
3.123.158.8 0:0:0:0:0:ffff:37b:9e08
3.123.158.9 0:0:0:0:0:ffff:37b:9e09
3.123.158.10 0:0:0:0:0:ffff:37b:9e0a
3.123.158.11 0:0:0:0:0:ffff:37b:9e0b
3.123.158.12 0:0:0:0:0:ffff:37b:9e0c
3.123.158.13 0:0:0:0:0:ffff:37b:9e0d
3.123.158.14 0:0:0:0:0:ffff:37b:9e0e
3.123.158.15 0:0:0:0:0:ffff:37b:9e0f
3.123.158.16 0:0:0:0:0:ffff:37b:9e10
3.123.158.17 0:0:0:0:0:ffff:37b:9e11
3.123.158.18 0:0:0:0:0:ffff:37b:9e12
3.123.158.19 0:0:0:0:0:ffff:37b:9e13
3.123.158.20 0:0:0:0:0:ffff:37b:9e14
3.123.158.21 0:0:0:0:0:ffff:37b:9e15
3.123.158.22 0:0:0:0:0:ffff:37b:9e16
3.123.158.23 0:0:0:0:0:ffff:37b:9e17
3.123.158.24 0:0:0:0:0:ffff:37b:9e18
3.123.158.25 0:0:0:0:0:ffff:37b:9e19
3.123.158.26 0:0:0:0:0:ffff:37b:9e1a
3.123.158.27 0:0:0:0:0:ffff:37b:9e1b
3.123.158.28 0:0:0:0:0:ffff:37b:9e1c
3.123.158.29 0:0:0:0:0:ffff:37b:9e1d
3.123.158.30 0:0:0:0:0:ffff:37b:9e1e
3.123.158.31 0:0:0:0:0:ffff:37b:9e1f
3.123.158.32 0:0:0:0:0:ffff:37b:9e20
3.123.158.33 0:0:0:0:0:ffff:37b:9e21
3.123.158.34 0:0:0:0:0:ffff:37b:9e22
3.123.158.35 0:0:0:0:0:ffff:37b:9e23
3.123.158.36 0:0:0:0:0:ffff:37b:9e24
3.123.158.37 0:0:0:0:0:ffff:37b:9e25
3.123.158.38 0:0:0:0:0:ffff:37b:9e26
3.123.158.39 0:0:0:0:0:ffff:37b:9e27
3.123.158.40 0:0:0:0:0:ffff:37b:9e28
3.123.158.41 0:0:0:0:0:ffff:37b:9e29
3.123.158.42 0:0:0:0:0:ffff:37b:9e2a
3.123.158.43 0:0:0:0:0:ffff:37b:9e2b
3.123.158.44 0:0:0:0:0:ffff:37b:9e2c
3.123.158.45 0:0:0:0:0:ffff:37b:9e2d
3.123.158.46 0:0:0:0:0:ffff:37b:9e2e
3.123.158.47 0:0:0:0:0:ffff:37b:9e2f
3.123.158.48 0:0:0:0:0:ffff:37b:9e30
3.123.158.49 0:0:0:0:0:ffff:37b:9e31
3.123.158.50 0:0:0:0:0:ffff:37b:9e32
3.123.158.51 0:0:0:0:0:ffff:37b:9e33
3.123.158.52 0:0:0:0:0:ffff:37b:9e34
3.123.158.53 0:0:0:0:0:ffff:37b:9e35
3.123.158.54 0:0:0:0:0:ffff:37b:9e36
3.123.158.55 0:0:0:0:0:ffff:37b:9e37
3.123.158.56 0:0:0:0:0:ffff:37b:9e38
3.123.158.57 0:0:0:0:0:ffff:37b:9e39
3.123.158.58 0:0:0:0:0:ffff:37b:9e3a
3.123.158.59 0:0:0:0:0:ffff:37b:9e3b
3.123.158.60 0:0:0:0:0:ffff:37b:9e3c


3.123.158.61 0:0:0:0:0:ffff:37b:9e3d
3.123.158.62 0:0:0:0:0:ffff:37b:9e3e
3.123.158.63 0:0:0:0:0:ffff:37b:9e3f
3.123.158.64 0:0:0:0:0:ffff:37b:9e40
3.123.158.65 0:0:0:0:0:ffff:37b:9e41
3.123.158.66 0:0:0:0:0:ffff:37b:9e42
3.123.158.67 0:0:0:0:0:ffff:37b:9e43
3.123.158.68 0:0:0:0:0:ffff:37b:9e44
3.123.158.69 0:0:0:0:0:ffff:37b:9e45
3.123.158.70 0:0:0:0:0:ffff:37b:9e46
3.123.158.71 0:0:0:0:0:ffff:37b:9e47
3.123.158.72 0:0:0:0:0:ffff:37b:9e48
3.123.158.73 0:0:0:0:0:ffff:37b:9e49
3.123.158.74 0:0:0:0:0:ffff:37b:9e4a
3.123.158.75 0:0:0:0:0:ffff:37b:9e4b
3.123.158.76 0:0:0:0:0:ffff:37b:9e4c
3.123.158.77 0:0:0:0:0:ffff:37b:9e4d
3.123.158.78 0:0:0:0:0:ffff:37b:9e4e
3.123.158.79 0:0:0:0:0:ffff:37b:9e4f
3.123.158.80 0:0:0:0:0:ffff:37b:9e50
3.123.158.81 0:0:0:0:0:ffff:37b:9e51
3.123.158.82 0:0:0:0:0:ffff:37b:9e52
3.123.158.83 0:0:0:0:0:ffff:37b:9e53
3.123.158.84 0:0:0:0:0:ffff:37b:9e54
3.123.158.85 0:0:0:0:0:ffff:37b:9e55
3.123.158.86 0:0:0:0:0:ffff:37b:9e56
3.123.158.87 0:0:0:0:0:ffff:37b:9e57
3.123.158.88 0:0:0:0:0:ffff:37b:9e58
3.123.158.89 0:0:0:0:0:ffff:37b:9e59
3.123.158.90 0:0:0:0:0:ffff:37b:9e5a
3.123.158.91 0:0:0:0:0:ffff:37b:9e5b
3.123.158.92 0:0:0:0:0:ffff:37b:9e5c
3.123.158.93 0:0:0:0:0:ffff:37b:9e5d
3.123.158.94 0:0:0:0:0:ffff:37b:9e5e
3.123.158.95 0:0:0:0:0:ffff:37b:9e5f
3.123.158.96 0:0:0:0:0:ffff:37b:9e60
3.123.158.97 0:0:0:0:0:ffff:37b:9e61
3.123.158.98 0:0:0:0:0:ffff:37b:9e62
3.123.158.99 0:0:0:0:0:ffff:37b:9e63
3.123.158.100 0:0:0:0:0:ffff:37b:9e64
3.123.158.101 0:0:0:0:0:ffff:37b:9e65
3.123.158.102 0:0:0:0:0:ffff:37b:9e66
3.123.158.103 0:0:0:0:0:ffff:37b:9e67
3.123.158.104 0:0:0:0:0:ffff:37b:9e68
3.123.158.105 0:0:0:0:0:ffff:37b:9e69
3.123.158.106 0:0:0:0:0:ffff:37b:9e6a
3.123.158.107 0:0:0:0:0:ffff:37b:9e6b
3.123.158.108 0:0:0:0:0:ffff:37b:9e6c
3.123.158.109 0:0:0:0:0:ffff:37b:9e6d
3.123.158.110 0:0:0:0:0:ffff:37b:9e6e
3.123.158.111 0:0:0:0:0:ffff:37b:9e6f
3.123.158.112 0:0:0:0:0:ffff:37b:9e70
3.123.158.113 0:0:0:0:0:ffff:37b:9e71
3.123.158.114 0:0:0:0:0:ffff:37b:9e72
3.123.158.115 0:0:0:0:0:ffff:37b:9e73
3.123.158.116 0:0:0:0:0:ffff:37b:9e74
3.123.158.117 0:0:0:0:0:ffff:37b:9e75
3.123.158.118 0:0:0:0:0:ffff:37b:9e76
3.123.158.119 0:0:0:0:0:ffff:37b:9e77
3.123.158.120 0:0:0:0:0:ffff:37b:9e78


3.123.158.121 0:0:0:0:0:ffff:37b:9e79
3.123.158.122 0:0:0:0:0:ffff:37b:9e7a
3.123.158.123 0:0:0:0:0:ffff:37b:9e7b
3.123.158.124 0:0:0:0:0:ffff:37b:9e7c
3.123.158.125 0:0:0:0:0:ffff:37b:9e7d
3.123.158.126 0:0:0:0:0:ffff:37b:9e7e
3.123.158.127 0:0:0:0:0:ffff:37b:9e7f
3.123.158.128 0:0:0:0:0:ffff:37b:9e80
3.123.158.129 0:0:0:0:0:ffff:37b:9e81
3.123.158.130 0:0:0:0:0:ffff:37b:9e82
3.123.158.131 0:0:0:0:0:ffff:37b:9e83
3.123.158.132 0:0:0:0:0:ffff:37b:9e84
3.123.158.133 0:0:0:0:0:ffff:37b:9e85
3.123.158.134 0:0:0:0:0:ffff:37b:9e86
3.123.158.135 0:0:0:0:0:ffff:37b:9e87
3.123.158.136 0:0:0:0:0:ffff:37b:9e88
3.123.158.137 0:0:0:0:0:ffff:37b:9e89
3.123.158.138 0:0:0:0:0:ffff:37b:9e8a
3.123.158.139 0:0:0:0:0:ffff:37b:9e8b
3.123.158.140 0:0:0:0:0:ffff:37b:9e8c
3.123.158.141 0:0:0:0:0:ffff:37b:9e8d
3.123.158.142 0:0:0:0:0:ffff:37b:9e8e
3.123.158.143 0:0:0:0:0:ffff:37b:9e8f
3.123.158.144 0:0:0:0:0:ffff:37b:9e90
3.123.158.145 0:0:0:0:0:ffff:37b:9e91
3.123.158.146 0:0:0:0:0:ffff:37b:9e92
3.123.158.147 0:0:0:0:0:ffff:37b:9e93
3.123.158.148 0:0:0:0:0:ffff:37b:9e94
3.123.158.149 0:0:0:0:0:ffff:37b:9e95
3.123.158.150 0:0:0:0:0:ffff:37b:9e96
3.123.158.151 0:0:0:0:0:ffff:37b:9e97
3.123.158.152 0:0:0:0:0:ffff:37b:9e98
3.123.158.153 0:0:0:0:0:ffff:37b:9e99
3.123.158.154 0:0:0:0:0:ffff:37b:9e9a
3.123.158.155 0:0:0:0:0:ffff:37b:9e9b
3.123.158.156 0:0:0:0:0:ffff:37b:9e9c
3.123.158.157 0:0:0:0:0:ffff:37b:9e9d
3.123.158.158 0:0:0:0:0:ffff:37b:9e9e
3.123.158.159 0:0:0:0:0:ffff:37b:9e9f
3.123.158.160 0:0:0:0:0:ffff:37b:9ea0
3.123.158.161 0:0:0:0:0:ffff:37b:9ea1
3.123.158.162 0:0:0:0:0:ffff:37b:9ea2
3.123.158.163 0:0:0:0:0:ffff:37b:9ea3
3.123.158.164 0:0:0:0:0:ffff:37b:9ea4
3.123.158.165 0:0:0:0:0:ffff:37b:9ea5
3.123.158.166 0:0:0:0:0:ffff:37b:9ea6
3.123.158.167 0:0:0:0:0:ffff:37b:9ea7
3.123.158.168 0:0:0:0:0:ffff:37b:9ea8
3.123.158.169 0:0:0:0:0:ffff:37b:9ea9
3.123.158.170 0:0:0:0:0:ffff:37b:9eaa
3.123.158.171 0:0:0:0:0:ffff:37b:9eab
3.123.158.172 0:0:0:0:0:ffff:37b:9eac
3.123.158.173 0:0:0:0:0:ffff:37b:9ead
3.123.158.174 0:0:0:0:0:ffff:37b:9eae
3.123.158.175 0:0:0:0:0:ffff:37b:9eaf
3.123.158.176 0:0:0:0:0:ffff:37b:9eb0
3.123.158.177 0:0:0:0:0:ffff:37b:9eb1
3.123.158.178 0:0:0:0:0:ffff:37b:9eb2
3.123.158.179 0:0:0:0:0:ffff:37b:9eb3
3.123.158.180 0:0:0:0:0:ffff:37b:9eb4


3.123.158.181 0:0:0:0:0:ffff:37b:9eb5
3.123.158.182 0:0:0:0:0:ffff:37b:9eb6
3.123.158.183 0:0:0:0:0:ffff:37b:9eb7
3.123.158.184 0:0:0:0:0:ffff:37b:9eb8
3.123.158.185 0:0:0:0:0:ffff:37b:9eb9
3.123.158.186 0:0:0:0:0:ffff:37b:9eba
3.123.158.187 0:0:0:0:0:ffff:37b:9ebb
3.123.158.188 0:0:0:0:0:ffff:37b:9ebc
3.123.158.189 0:0:0:0:0:ffff:37b:9ebd
3.123.158.190 0:0:0:0:0:ffff:37b:9ebe
3.123.158.191 0:0:0:0:0:ffff:37b:9ebf
3.123.158.192 0:0:0:0:0:ffff:37b:9ec0
3.123.158.193 0:0:0:0:0:ffff:37b:9ec1
3.123.158.194 0:0:0:0:0:ffff:37b:9ec2
3.123.158.195 0:0:0:0:0:ffff:37b:9ec3
3.123.158.196 0:0:0:0:0:ffff:37b:9ec4
3.123.158.197 0:0:0:0:0:ffff:37b:9ec5
3.123.158.198 0:0:0:0:0:ffff:37b:9ec6
3.123.158.199 0:0:0:0:0:ffff:37b:9ec7
3.123.158.200 0:0:0:0:0:ffff:37b:9ec8
3.123.158.201 0:0:0:0:0:ffff:37b:9ec9
3.123.158.202 0:0:0:0:0:ffff:37b:9eca
3.123.158.203 0:0:0:0:0:ffff:37b:9ecb
3.123.158.204 0:0:0:0:0:ffff:37b:9ecc
3.123.158.205 0:0:0:0:0:ffff:37b:9ecd
3.123.158.206 0:0:0:0:0:ffff:37b:9ece
3.123.158.207 0:0:0:0:0:ffff:37b:9ecf
3.123.158.208 0:0:0:0:0:ffff:37b:9ed0
3.123.158.209 0:0:0:0:0:ffff:37b:9ed1
3.123.158.210 0:0:0:0:0:ffff:37b:9ed2
3.123.158.211 0:0:0:0:0:ffff:37b:9ed3
3.123.158.212 0:0:0:0:0:ffff:37b:9ed4
3.123.158.213 0:0:0:0:0:ffff:37b:9ed5
3.123.158.214 0:0:0:0:0:ffff:37b:9ed6
3.123.158.215 0:0:0:0:0:ffff:37b:9ed7
3.123.158.216 0:0:0:0:0:ffff:37b:9ed8
3.123.158.217 0:0:0:0:0:ffff:37b:9ed9
3.123.158.218 0:0:0:0:0:ffff:37b:9eda
3.123.158.219 0:0:0:0:0:ffff:37b:9edb
3.123.158.220 0:0:0:0:0:ffff:37b:9edc
3.123.158.221 0:0:0:0:0:ffff:37b:9edd
3.123.158.222 0:0:0:0:0:ffff:37b:9ede
3.123.158.223 0:0:0:0:0:ffff:37b:9edf
3.123.158.224 0:0:0:0:0:ffff:37b:9ee0
3.123.158.225 0:0:0:0:0:ffff:37b:9ee1
3.123.158.226 0:0:0:0:0:ffff:37b:9ee2
3.123.158.227 0:0:0:0:0:ffff:37b:9ee3
3.123.158.228 0:0:0:0:0:ffff:37b:9ee4
3.123.158.229 0:0:0:0:0:ffff:37b:9ee5
3.123.158.230 0:0:0:0:0:ffff:37b:9ee6
3.123.158.231 0:0:0:0:0:ffff:37b:9ee7
3.123.158.232 0:0:0:0:0:ffff:37b:9ee8
3.123.158.233 0:0:0:0:0:ffff:37b:9ee9
3.123.158.234 0:0:0:0:0:ffff:37b:9eea
3.123.158.235 0:0:0:0:0:ffff:37b:9eeb
3.123.158.236 0:0:0:0:0:ffff:37b:9eec
3.123.158.237 0:0:0:0:0:ffff:37b:9eed
3.123.158.238 0:0:0:0:0:ffff:37b:9eee
3.123.158.239 0:0:0:0:0:ffff:37b:9eef
3.123.158.240 0:0:0:0:0:ffff:37b:9ef0
3.123.158.241 0:0:0:0:0:ffff:37b:9ef1
3.123.158.242 0:0:0:0:0:ffff:37b:9ef2
3.123.158.243 0:0:0:0:0:ffff:37b:9ef3
3.123.158.244 0:0:0:0:0:ffff:37b:9ef4
3.123.158.245 0:0:0:0:0:ffff:37b:9ef5
3.123.158.246 0:0:0:0:0:ffff:37b:9ef6
3.123.158.247 0:0:0:0:0:ffff:37b:9ef7
3.123.158.248 0:0:0:0:0:ffff:37b:9ef8
3.123.158.249 0:0:0:0:0:ffff:37b:9ef9
3.123.158.250 0:0:0:0:0:ffff:37b:9efa
3.123.158.251 0:0:0:0:0:ffff:37b:9efb
3.123.158.252 0:0:0:0:0:ffff:37b:9efc
3.123.158.253 0:0:0:0:0:ffff:37b:9efd
3.123.158.254 0:0:0:0:0:ffff:37b:9efe
3.123.158.255 0:0:0:0:0:ffff:37b:9eff


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.