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
3.123.142.1 0:0:0:0:0:ffff:37b:8e01
3.123.142.2 0:0:0:0:0:ffff:37b:8e02
3.123.142.3 0:0:0:0:0:ffff:37b:8e03
3.123.142.4 0:0:0:0:0:ffff:37b:8e04
3.123.142.5 0:0:0:0:0:ffff:37b:8e05
3.123.142.6 0:0:0:0:0:ffff:37b:8e06
3.123.142.7 0:0:0:0:0:ffff:37b:8e07
3.123.142.8 0:0:0:0:0:ffff:37b:8e08
3.123.142.9 0:0:0:0:0:ffff:37b:8e09
3.123.142.10 0:0:0:0:0:ffff:37b:8e0a
3.123.142.11 0:0:0:0:0:ffff:37b:8e0b
3.123.142.12 0:0:0:0:0:ffff:37b:8e0c
3.123.142.13 0:0:0:0:0:ffff:37b:8e0d
3.123.142.14 0:0:0:0:0:ffff:37b:8e0e
3.123.142.15 0:0:0:0:0:ffff:37b:8e0f
3.123.142.16 0:0:0:0:0:ffff:37b:8e10
3.123.142.17 0:0:0:0:0:ffff:37b:8e11
3.123.142.18 0:0:0:0:0:ffff:37b:8e12
3.123.142.19 0:0:0:0:0:ffff:37b:8e13
3.123.142.20 0:0:0:0:0:ffff:37b:8e14
3.123.142.21 0:0:0:0:0:ffff:37b:8e15
3.123.142.22 0:0:0:0:0:ffff:37b:8e16
3.123.142.23 0:0:0:0:0:ffff:37b:8e17
3.123.142.24 0:0:0:0:0:ffff:37b:8e18
3.123.142.25 0:0:0:0:0:ffff:37b:8e19
3.123.142.26 0:0:0:0:0:ffff:37b:8e1a
3.123.142.27 0:0:0:0:0:ffff:37b:8e1b
3.123.142.28 0:0:0:0:0:ffff:37b:8e1c
3.123.142.29 0:0:0:0:0:ffff:37b:8e1d
3.123.142.30 0:0:0:0:0:ffff:37b:8e1e
3.123.142.31 0:0:0:0:0:ffff:37b:8e1f
3.123.142.32 0:0:0:0:0:ffff:37b:8e20
3.123.142.33 0:0:0:0:0:ffff:37b:8e21
3.123.142.34 0:0:0:0:0:ffff:37b:8e22
3.123.142.35 0:0:0:0:0:ffff:37b:8e23
3.123.142.36 0:0:0:0:0:ffff:37b:8e24
3.123.142.37 0:0:0:0:0:ffff:37b:8e25
3.123.142.38 0:0:0:0:0:ffff:37b:8e26
3.123.142.39 0:0:0:0:0:ffff:37b:8e27
3.123.142.40 0:0:0:0:0:ffff:37b:8e28
3.123.142.41 0:0:0:0:0:ffff:37b:8e29
3.123.142.42 0:0:0:0:0:ffff:37b:8e2a
3.123.142.43 0:0:0:0:0:ffff:37b:8e2b
3.123.142.44 0:0:0:0:0:ffff:37b:8e2c
3.123.142.45 0:0:0:0:0:ffff:37b:8e2d
3.123.142.46 0:0:0:0:0:ffff:37b:8e2e
3.123.142.47 0:0:0:0:0:ffff:37b:8e2f
3.123.142.48 0:0:0:0:0:ffff:37b:8e30
3.123.142.49 0:0:0:0:0:ffff:37b:8e31
3.123.142.50 0:0:0:0:0:ffff:37b:8e32
3.123.142.51 0:0:0:0:0:ffff:37b:8e33
3.123.142.52 0:0:0:0:0:ffff:37b:8e34
3.123.142.53 0:0:0:0:0:ffff:37b:8e35
3.123.142.54 0:0:0:0:0:ffff:37b:8e36
3.123.142.55 0:0:0:0:0:ffff:37b:8e37
3.123.142.56 0:0:0:0:0:ffff:37b:8e38
3.123.142.57 0:0:0:0:0:ffff:37b:8e39
3.123.142.58 0:0:0:0:0:ffff:37b:8e3a
3.123.142.59 0:0:0:0:0:ffff:37b:8e3b
3.123.142.60 0:0:0:0:0:ffff:37b:8e3c


3.123.142.61 0:0:0:0:0:ffff:37b:8e3d
3.123.142.62 0:0:0:0:0:ffff:37b:8e3e
3.123.142.63 0:0:0:0:0:ffff:37b:8e3f
3.123.142.64 0:0:0:0:0:ffff:37b:8e40
3.123.142.65 0:0:0:0:0:ffff:37b:8e41
3.123.142.66 0:0:0:0:0:ffff:37b:8e42
3.123.142.67 0:0:0:0:0:ffff:37b:8e43
3.123.142.68 0:0:0:0:0:ffff:37b:8e44
3.123.142.69 0:0:0:0:0:ffff:37b:8e45
3.123.142.70 0:0:0:0:0:ffff:37b:8e46
3.123.142.71 0:0:0:0:0:ffff:37b:8e47
3.123.142.72 0:0:0:0:0:ffff:37b:8e48
3.123.142.73 0:0:0:0:0:ffff:37b:8e49
3.123.142.74 0:0:0:0:0:ffff:37b:8e4a
3.123.142.75 0:0:0:0:0:ffff:37b:8e4b
3.123.142.76 0:0:0:0:0:ffff:37b:8e4c
3.123.142.77 0:0:0:0:0:ffff:37b:8e4d
3.123.142.78 0:0:0:0:0:ffff:37b:8e4e
3.123.142.79 0:0:0:0:0:ffff:37b:8e4f
3.123.142.80 0:0:0:0:0:ffff:37b:8e50
3.123.142.81 0:0:0:0:0:ffff:37b:8e51
3.123.142.82 0:0:0:0:0:ffff:37b:8e52
3.123.142.83 0:0:0:0:0:ffff:37b:8e53
3.123.142.84 0:0:0:0:0:ffff:37b:8e54
3.123.142.85 0:0:0:0:0:ffff:37b:8e55
3.123.142.86 0:0:0:0:0:ffff:37b:8e56
3.123.142.87 0:0:0:0:0:ffff:37b:8e57
3.123.142.88 0:0:0:0:0:ffff:37b:8e58
3.123.142.89 0:0:0:0:0:ffff:37b:8e59
3.123.142.90 0:0:0:0:0:ffff:37b:8e5a
3.123.142.91 0:0:0:0:0:ffff:37b:8e5b
3.123.142.92 0:0:0:0:0:ffff:37b:8e5c
3.123.142.93 0:0:0:0:0:ffff:37b:8e5d
3.123.142.94 0:0:0:0:0:ffff:37b:8e5e
3.123.142.95 0:0:0:0:0:ffff:37b:8e5f
3.123.142.96 0:0:0:0:0:ffff:37b:8e60
3.123.142.97 0:0:0:0:0:ffff:37b:8e61
3.123.142.98 0:0:0:0:0:ffff:37b:8e62
3.123.142.99 0:0:0:0:0:ffff:37b:8e63
3.123.142.100 0:0:0:0:0:ffff:37b:8e64
3.123.142.101 0:0:0:0:0:ffff:37b:8e65
3.123.142.102 0:0:0:0:0:ffff:37b:8e66
3.123.142.103 0:0:0:0:0:ffff:37b:8e67
3.123.142.104 0:0:0:0:0:ffff:37b:8e68
3.123.142.105 0:0:0:0:0:ffff:37b:8e69
3.123.142.106 0:0:0:0:0:ffff:37b:8e6a
3.123.142.107 0:0:0:0:0:ffff:37b:8e6b
3.123.142.108 0:0:0:0:0:ffff:37b:8e6c
3.123.142.109 0:0:0:0:0:ffff:37b:8e6d
3.123.142.110 0:0:0:0:0:ffff:37b:8e6e
3.123.142.111 0:0:0:0:0:ffff:37b:8e6f
3.123.142.112 0:0:0:0:0:ffff:37b:8e70
3.123.142.113 0:0:0:0:0:ffff:37b:8e71
3.123.142.114 0:0:0:0:0:ffff:37b:8e72
3.123.142.115 0:0:0:0:0:ffff:37b:8e73
3.123.142.116 0:0:0:0:0:ffff:37b:8e74
3.123.142.117 0:0:0:0:0:ffff:37b:8e75
3.123.142.118 0:0:0:0:0:ffff:37b:8e76
3.123.142.119 0:0:0:0:0:ffff:37b:8e77
3.123.142.120 0:0:0:0:0:ffff:37b:8e78


3.123.142.121 0:0:0:0:0:ffff:37b:8e79
3.123.142.122 0:0:0:0:0:ffff:37b:8e7a
3.123.142.123 0:0:0:0:0:ffff:37b:8e7b
3.123.142.124 0:0:0:0:0:ffff:37b:8e7c
3.123.142.125 0:0:0:0:0:ffff:37b:8e7d
3.123.142.126 0:0:0:0:0:ffff:37b:8e7e
3.123.142.127 0:0:0:0:0:ffff:37b:8e7f
3.123.142.128 0:0:0:0:0:ffff:37b:8e80
3.123.142.129 0:0:0:0:0:ffff:37b:8e81
3.123.142.130 0:0:0:0:0:ffff:37b:8e82
3.123.142.131 0:0:0:0:0:ffff:37b:8e83
3.123.142.132 0:0:0:0:0:ffff:37b:8e84
3.123.142.133 0:0:0:0:0:ffff:37b:8e85
3.123.142.134 0:0:0:0:0:ffff:37b:8e86
3.123.142.135 0:0:0:0:0:ffff:37b:8e87
3.123.142.136 0:0:0:0:0:ffff:37b:8e88
3.123.142.137 0:0:0:0:0:ffff:37b:8e89
3.123.142.138 0:0:0:0:0:ffff:37b:8e8a
3.123.142.139 0:0:0:0:0:ffff:37b:8e8b
3.123.142.140 0:0:0:0:0:ffff:37b:8e8c
3.123.142.141 0:0:0:0:0:ffff:37b:8e8d
3.123.142.142 0:0:0:0:0:ffff:37b:8e8e
3.123.142.143 0:0:0:0:0:ffff:37b:8e8f
3.123.142.144 0:0:0:0:0:ffff:37b:8e90
3.123.142.145 0:0:0:0:0:ffff:37b:8e91
3.123.142.146 0:0:0:0:0:ffff:37b:8e92
3.123.142.147 0:0:0:0:0:ffff:37b:8e93
3.123.142.148 0:0:0:0:0:ffff:37b:8e94
3.123.142.149 0:0:0:0:0:ffff:37b:8e95
3.123.142.150 0:0:0:0:0:ffff:37b:8e96
3.123.142.151 0:0:0:0:0:ffff:37b:8e97
3.123.142.152 0:0:0:0:0:ffff:37b:8e98
3.123.142.153 0:0:0:0:0:ffff:37b:8e99
3.123.142.154 0:0:0:0:0:ffff:37b:8e9a
3.123.142.155 0:0:0:0:0:ffff:37b:8e9b
3.123.142.156 0:0:0:0:0:ffff:37b:8e9c
3.123.142.157 0:0:0:0:0:ffff:37b:8e9d
3.123.142.158 0:0:0:0:0:ffff:37b:8e9e
3.123.142.159 0:0:0:0:0:ffff:37b:8e9f
3.123.142.160 0:0:0:0:0:ffff:37b:8ea0
3.123.142.161 0:0:0:0:0:ffff:37b:8ea1
3.123.142.162 0:0:0:0:0:ffff:37b:8ea2
3.123.142.163 0:0:0:0:0:ffff:37b:8ea3
3.123.142.164 0:0:0:0:0:ffff:37b:8ea4
3.123.142.165 0:0:0:0:0:ffff:37b:8ea5
3.123.142.166 0:0:0:0:0:ffff:37b:8ea6
3.123.142.167 0:0:0:0:0:ffff:37b:8ea7
3.123.142.168 0:0:0:0:0:ffff:37b:8ea8
3.123.142.169 0:0:0:0:0:ffff:37b:8ea9
3.123.142.170 0:0:0:0:0:ffff:37b:8eaa
3.123.142.171 0:0:0:0:0:ffff:37b:8eab
3.123.142.172 0:0:0:0:0:ffff:37b:8eac
3.123.142.173 0:0:0:0:0:ffff:37b:8ead
3.123.142.174 0:0:0:0:0:ffff:37b:8eae
3.123.142.175 0:0:0:0:0:ffff:37b:8eaf
3.123.142.176 0:0:0:0:0:ffff:37b:8eb0
3.123.142.177 0:0:0:0:0:ffff:37b:8eb1
3.123.142.178 0:0:0:0:0:ffff:37b:8eb2
3.123.142.179 0:0:0:0:0:ffff:37b:8eb3
3.123.142.180 0:0:0:0:0:ffff:37b:8eb4


3.123.142.181 0:0:0:0:0:ffff:37b:8eb5
3.123.142.182 0:0:0:0:0:ffff:37b:8eb6
3.123.142.183 0:0:0:0:0:ffff:37b:8eb7
3.123.142.184 0:0:0:0:0:ffff:37b:8eb8
3.123.142.185 0:0:0:0:0:ffff:37b:8eb9
3.123.142.186 0:0:0:0:0:ffff:37b:8eba
3.123.142.187 0:0:0:0:0:ffff:37b:8ebb
3.123.142.188 0:0:0:0:0:ffff:37b:8ebc
3.123.142.189 0:0:0:0:0:ffff:37b:8ebd
3.123.142.190 0:0:0:0:0:ffff:37b:8ebe
3.123.142.191 0:0:0:0:0:ffff:37b:8ebf
3.123.142.192 0:0:0:0:0:ffff:37b:8ec0
3.123.142.193 0:0:0:0:0:ffff:37b:8ec1
3.123.142.194 0:0:0:0:0:ffff:37b:8ec2
3.123.142.195 0:0:0:0:0:ffff:37b:8ec3
3.123.142.196 0:0:0:0:0:ffff:37b:8ec4
3.123.142.197 0:0:0:0:0:ffff:37b:8ec5
3.123.142.198 0:0:0:0:0:ffff:37b:8ec6
3.123.142.199 0:0:0:0:0:ffff:37b:8ec7
3.123.142.200 0:0:0:0:0:ffff:37b:8ec8
3.123.142.201 0:0:0:0:0:ffff:37b:8ec9
3.123.142.202 0:0:0:0:0:ffff:37b:8eca
3.123.142.203 0:0:0:0:0:ffff:37b:8ecb
3.123.142.204 0:0:0:0:0:ffff:37b:8ecc
3.123.142.205 0:0:0:0:0:ffff:37b:8ecd
3.123.142.206 0:0:0:0:0:ffff:37b:8ece
3.123.142.207 0:0:0:0:0:ffff:37b:8ecf
3.123.142.208 0:0:0:0:0:ffff:37b:8ed0
3.123.142.209 0:0:0:0:0:ffff:37b:8ed1
3.123.142.210 0:0:0:0:0:ffff:37b:8ed2
3.123.142.211 0:0:0:0:0:ffff:37b:8ed3
3.123.142.212 0:0:0:0:0:ffff:37b:8ed4
3.123.142.213 0:0:0:0:0:ffff:37b:8ed5
3.123.142.214 0:0:0:0:0:ffff:37b:8ed6
3.123.142.215 0:0:0:0:0:ffff:37b:8ed7
3.123.142.216 0:0:0:0:0:ffff:37b:8ed8
3.123.142.217 0:0:0:0:0:ffff:37b:8ed9
3.123.142.218 0:0:0:0:0:ffff:37b:8eda
3.123.142.219 0:0:0:0:0:ffff:37b:8edb
3.123.142.220 0:0:0:0:0:ffff:37b:8edc
3.123.142.221 0:0:0:0:0:ffff:37b:8edd
3.123.142.222 0:0:0:0:0:ffff:37b:8ede
3.123.142.223 0:0:0:0:0:ffff:37b:8edf
3.123.142.224 0:0:0:0:0:ffff:37b:8ee0
3.123.142.225 0:0:0:0:0:ffff:37b:8ee1
3.123.142.226 0:0:0:0:0:ffff:37b:8ee2
3.123.142.227 0:0:0:0:0:ffff:37b:8ee3
3.123.142.228 0:0:0:0:0:ffff:37b:8ee4
3.123.142.229 0:0:0:0:0:ffff:37b:8ee5
3.123.142.230 0:0:0:0:0:ffff:37b:8ee6
3.123.142.231 0:0:0:0:0:ffff:37b:8ee7
3.123.142.232 0:0:0:0:0:ffff:37b:8ee8
3.123.142.233 0:0:0:0:0:ffff:37b:8ee9
3.123.142.234 0:0:0:0:0:ffff:37b:8eea
3.123.142.235 0:0:0:0:0:ffff:37b:8eeb
3.123.142.236 0:0:0:0:0:ffff:37b:8eec
3.123.142.237 0:0:0:0:0:ffff:37b:8eed
3.123.142.238 0:0:0:0:0:ffff:37b:8eee
3.123.142.239 0:0:0:0:0:ffff:37b:8eef
3.123.142.240 0:0:0:0:0:ffff:37b:8ef0
3.123.142.241 0:0:0:0:0:ffff:37b:8ef1
3.123.142.242 0:0:0:0:0:ffff:37b:8ef2
3.123.142.243 0:0:0:0:0:ffff:37b:8ef3
3.123.142.244 0:0:0:0:0:ffff:37b:8ef4
3.123.142.245 0:0:0:0:0:ffff:37b:8ef5
3.123.142.246 0:0:0:0:0:ffff:37b:8ef6
3.123.142.247 0:0:0:0:0:ffff:37b:8ef7
3.123.142.248 0:0:0:0:0:ffff:37b:8ef8
3.123.142.249 0:0:0:0:0:ffff:37b:8ef9
3.123.142.250 0:0:0:0:0:ffff:37b:8efa
3.123.142.251 0:0:0:0:0:ffff:37b:8efb
3.123.142.252 0:0:0:0:0:ffff:37b:8efc
3.123.142.253 0:0:0:0:0:ffff:37b:8efd
3.123.142.254 0:0:0:0:0:ffff:37b:8efe
3.123.142.255 0:0:0:0:0:ffff:37b:8eff


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.