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
126.123.28.1 0:0:0:0:0:ffff:7e7b:1c01
126.123.28.2 0:0:0:0:0:ffff:7e7b:1c02
126.123.28.3 0:0:0:0:0:ffff:7e7b:1c03
126.123.28.4 0:0:0:0:0:ffff:7e7b:1c04
126.123.28.5 0:0:0:0:0:ffff:7e7b:1c05
126.123.28.6 0:0:0:0:0:ffff:7e7b:1c06
126.123.28.7 0:0:0:0:0:ffff:7e7b:1c07
126.123.28.8 0:0:0:0:0:ffff:7e7b:1c08
126.123.28.9 0:0:0:0:0:ffff:7e7b:1c09
126.123.28.10 0:0:0:0:0:ffff:7e7b:1c0a
126.123.28.11 0:0:0:0:0:ffff:7e7b:1c0b
126.123.28.12 0:0:0:0:0:ffff:7e7b:1c0c
126.123.28.13 0:0:0:0:0:ffff:7e7b:1c0d
126.123.28.14 0:0:0:0:0:ffff:7e7b:1c0e
126.123.28.15 0:0:0:0:0:ffff:7e7b:1c0f
126.123.28.16 0:0:0:0:0:ffff:7e7b:1c10
126.123.28.17 0:0:0:0:0:ffff:7e7b:1c11
126.123.28.18 0:0:0:0:0:ffff:7e7b:1c12
126.123.28.19 0:0:0:0:0:ffff:7e7b:1c13
126.123.28.20 0:0:0:0:0:ffff:7e7b:1c14
126.123.28.21 0:0:0:0:0:ffff:7e7b:1c15
126.123.28.22 0:0:0:0:0:ffff:7e7b:1c16
126.123.28.23 0:0:0:0:0:ffff:7e7b:1c17
126.123.28.24 0:0:0:0:0:ffff:7e7b:1c18
126.123.28.25 0:0:0:0:0:ffff:7e7b:1c19
126.123.28.26 0:0:0:0:0:ffff:7e7b:1c1a
126.123.28.27 0:0:0:0:0:ffff:7e7b:1c1b
126.123.28.28 0:0:0:0:0:ffff:7e7b:1c1c
126.123.28.29 0:0:0:0:0:ffff:7e7b:1c1d
126.123.28.30 0:0:0:0:0:ffff:7e7b:1c1e
126.123.28.31 0:0:0:0:0:ffff:7e7b:1c1f
126.123.28.32 0:0:0:0:0:ffff:7e7b:1c20
126.123.28.33 0:0:0:0:0:ffff:7e7b:1c21
126.123.28.34 0:0:0:0:0:ffff:7e7b:1c22
126.123.28.35 0:0:0:0:0:ffff:7e7b:1c23
126.123.28.36 0:0:0:0:0:ffff:7e7b:1c24
126.123.28.37 0:0:0:0:0:ffff:7e7b:1c25
126.123.28.38 0:0:0:0:0:ffff:7e7b:1c26
126.123.28.39 0:0:0:0:0:ffff:7e7b:1c27
126.123.28.40 0:0:0:0:0:ffff:7e7b:1c28
126.123.28.41 0:0:0:0:0:ffff:7e7b:1c29
126.123.28.42 0:0:0:0:0:ffff:7e7b:1c2a
126.123.28.43 0:0:0:0:0:ffff:7e7b:1c2b
126.123.28.44 0:0:0:0:0:ffff:7e7b:1c2c
126.123.28.45 0:0:0:0:0:ffff:7e7b:1c2d
126.123.28.46 0:0:0:0:0:ffff:7e7b:1c2e
126.123.28.47 0:0:0:0:0:ffff:7e7b:1c2f
126.123.28.48 0:0:0:0:0:ffff:7e7b:1c30
126.123.28.49 0:0:0:0:0:ffff:7e7b:1c31
126.123.28.50 0:0:0:0:0:ffff:7e7b:1c32
126.123.28.51 0:0:0:0:0:ffff:7e7b:1c33
126.123.28.52 0:0:0:0:0:ffff:7e7b:1c34
126.123.28.53 0:0:0:0:0:ffff:7e7b:1c35
126.123.28.54 0:0:0:0:0:ffff:7e7b:1c36
126.123.28.55 0:0:0:0:0:ffff:7e7b:1c37
126.123.28.56 0:0:0:0:0:ffff:7e7b:1c38
126.123.28.57 0:0:0:0:0:ffff:7e7b:1c39
126.123.28.58 0:0:0:0:0:ffff:7e7b:1c3a
126.123.28.59 0:0:0:0:0:ffff:7e7b:1c3b
126.123.28.60 0:0:0:0:0:ffff:7e7b:1c3c


126.123.28.61 0:0:0:0:0:ffff:7e7b:1c3d
126.123.28.62 0:0:0:0:0:ffff:7e7b:1c3e
126.123.28.63 0:0:0:0:0:ffff:7e7b:1c3f
126.123.28.64 0:0:0:0:0:ffff:7e7b:1c40
126.123.28.65 0:0:0:0:0:ffff:7e7b:1c41
126.123.28.66 0:0:0:0:0:ffff:7e7b:1c42
126.123.28.67 0:0:0:0:0:ffff:7e7b:1c43
126.123.28.68 0:0:0:0:0:ffff:7e7b:1c44
126.123.28.69 0:0:0:0:0:ffff:7e7b:1c45
126.123.28.70 0:0:0:0:0:ffff:7e7b:1c46
126.123.28.71 0:0:0:0:0:ffff:7e7b:1c47
126.123.28.72 0:0:0:0:0:ffff:7e7b:1c48
126.123.28.73 0:0:0:0:0:ffff:7e7b:1c49
126.123.28.74 0:0:0:0:0:ffff:7e7b:1c4a
126.123.28.75 0:0:0:0:0:ffff:7e7b:1c4b
126.123.28.76 0:0:0:0:0:ffff:7e7b:1c4c
126.123.28.77 0:0:0:0:0:ffff:7e7b:1c4d
126.123.28.78 0:0:0:0:0:ffff:7e7b:1c4e
126.123.28.79 0:0:0:0:0:ffff:7e7b:1c4f
126.123.28.80 0:0:0:0:0:ffff:7e7b:1c50
126.123.28.81 0:0:0:0:0:ffff:7e7b:1c51
126.123.28.82 0:0:0:0:0:ffff:7e7b:1c52
126.123.28.83 0:0:0:0:0:ffff:7e7b:1c53
126.123.28.84 0:0:0:0:0:ffff:7e7b:1c54
126.123.28.85 0:0:0:0:0:ffff:7e7b:1c55
126.123.28.86 0:0:0:0:0:ffff:7e7b:1c56
126.123.28.87 0:0:0:0:0:ffff:7e7b:1c57
126.123.28.88 0:0:0:0:0:ffff:7e7b:1c58
126.123.28.89 0:0:0:0:0:ffff:7e7b:1c59
126.123.28.90 0:0:0:0:0:ffff:7e7b:1c5a
126.123.28.91 0:0:0:0:0:ffff:7e7b:1c5b
126.123.28.92 0:0:0:0:0:ffff:7e7b:1c5c
126.123.28.93 0:0:0:0:0:ffff:7e7b:1c5d
126.123.28.94 0:0:0:0:0:ffff:7e7b:1c5e
126.123.28.95 0:0:0:0:0:ffff:7e7b:1c5f
126.123.28.96 0:0:0:0:0:ffff:7e7b:1c60
126.123.28.97 0:0:0:0:0:ffff:7e7b:1c61
126.123.28.98 0:0:0:0:0:ffff:7e7b:1c62
126.123.28.99 0:0:0:0:0:ffff:7e7b:1c63
126.123.28.100 0:0:0:0:0:ffff:7e7b:1c64
126.123.28.101 0:0:0:0:0:ffff:7e7b:1c65
126.123.28.102 0:0:0:0:0:ffff:7e7b:1c66
126.123.28.103 0:0:0:0:0:ffff:7e7b:1c67
126.123.28.104 0:0:0:0:0:ffff:7e7b:1c68
126.123.28.105 0:0:0:0:0:ffff:7e7b:1c69
126.123.28.106 0:0:0:0:0:ffff:7e7b:1c6a
126.123.28.107 0:0:0:0:0:ffff:7e7b:1c6b
126.123.28.108 0:0:0:0:0:ffff:7e7b:1c6c
126.123.28.109 0:0:0:0:0:ffff:7e7b:1c6d
126.123.28.110 0:0:0:0:0:ffff:7e7b:1c6e
126.123.28.111 0:0:0:0:0:ffff:7e7b:1c6f
126.123.28.112 0:0:0:0:0:ffff:7e7b:1c70
126.123.28.113 0:0:0:0:0:ffff:7e7b:1c71
126.123.28.114 0:0:0:0:0:ffff:7e7b:1c72
126.123.28.115 0:0:0:0:0:ffff:7e7b:1c73
126.123.28.116 0:0:0:0:0:ffff:7e7b:1c74
126.123.28.117 0:0:0:0:0:ffff:7e7b:1c75
126.123.28.118 0:0:0:0:0:ffff:7e7b:1c76
126.123.28.119 0:0:0:0:0:ffff:7e7b:1c77
126.123.28.120 0:0:0:0:0:ffff:7e7b:1c78


126.123.28.121 0:0:0:0:0:ffff:7e7b:1c79
126.123.28.122 0:0:0:0:0:ffff:7e7b:1c7a
126.123.28.123 0:0:0:0:0:ffff:7e7b:1c7b
126.123.28.124 0:0:0:0:0:ffff:7e7b:1c7c
126.123.28.125 0:0:0:0:0:ffff:7e7b:1c7d
126.123.28.126 0:0:0:0:0:ffff:7e7b:1c7e
126.123.28.127 0:0:0:0:0:ffff:7e7b:1c7f
126.123.28.128 0:0:0:0:0:ffff:7e7b:1c80
126.123.28.129 0:0:0:0:0:ffff:7e7b:1c81
126.123.28.130 0:0:0:0:0:ffff:7e7b:1c82
126.123.28.131 0:0:0:0:0:ffff:7e7b:1c83
126.123.28.132 0:0:0:0:0:ffff:7e7b:1c84
126.123.28.133 0:0:0:0:0:ffff:7e7b:1c85
126.123.28.134 0:0:0:0:0:ffff:7e7b:1c86
126.123.28.135 0:0:0:0:0:ffff:7e7b:1c87
126.123.28.136 0:0:0:0:0:ffff:7e7b:1c88
126.123.28.137 0:0:0:0:0:ffff:7e7b:1c89
126.123.28.138 0:0:0:0:0:ffff:7e7b:1c8a
126.123.28.139 0:0:0:0:0:ffff:7e7b:1c8b
126.123.28.140 0:0:0:0:0:ffff:7e7b:1c8c
126.123.28.141 0:0:0:0:0:ffff:7e7b:1c8d
126.123.28.142 0:0:0:0:0:ffff:7e7b:1c8e
126.123.28.143 0:0:0:0:0:ffff:7e7b:1c8f
126.123.28.144 0:0:0:0:0:ffff:7e7b:1c90
126.123.28.145 0:0:0:0:0:ffff:7e7b:1c91
126.123.28.146 0:0:0:0:0:ffff:7e7b:1c92
126.123.28.147 0:0:0:0:0:ffff:7e7b:1c93
126.123.28.148 0:0:0:0:0:ffff:7e7b:1c94
126.123.28.149 0:0:0:0:0:ffff:7e7b:1c95
126.123.28.150 0:0:0:0:0:ffff:7e7b:1c96
126.123.28.151 0:0:0:0:0:ffff:7e7b:1c97
126.123.28.152 0:0:0:0:0:ffff:7e7b:1c98
126.123.28.153 0:0:0:0:0:ffff:7e7b:1c99
126.123.28.154 0:0:0:0:0:ffff:7e7b:1c9a
126.123.28.155 0:0:0:0:0:ffff:7e7b:1c9b
126.123.28.156 0:0:0:0:0:ffff:7e7b:1c9c
126.123.28.157 0:0:0:0:0:ffff:7e7b:1c9d
126.123.28.158 0:0:0:0:0:ffff:7e7b:1c9e
126.123.28.159 0:0:0:0:0:ffff:7e7b:1c9f
126.123.28.160 0:0:0:0:0:ffff:7e7b:1ca0
126.123.28.161 0:0:0:0:0:ffff:7e7b:1ca1
126.123.28.162 0:0:0:0:0:ffff:7e7b:1ca2
126.123.28.163 0:0:0:0:0:ffff:7e7b:1ca3
126.123.28.164 0:0:0:0:0:ffff:7e7b:1ca4
126.123.28.165 0:0:0:0:0:ffff:7e7b:1ca5
126.123.28.166 0:0:0:0:0:ffff:7e7b:1ca6
126.123.28.167 0:0:0:0:0:ffff:7e7b:1ca7
126.123.28.168 0:0:0:0:0:ffff:7e7b:1ca8
126.123.28.169 0:0:0:0:0:ffff:7e7b:1ca9
126.123.28.170 0:0:0:0:0:ffff:7e7b:1caa
126.123.28.171 0:0:0:0:0:ffff:7e7b:1cab
126.123.28.172 0:0:0:0:0:ffff:7e7b:1cac
126.123.28.173 0:0:0:0:0:ffff:7e7b:1cad
126.123.28.174 0:0:0:0:0:ffff:7e7b:1cae
126.123.28.175 0:0:0:0:0:ffff:7e7b:1caf
126.123.28.176 0:0:0:0:0:ffff:7e7b:1cb0
126.123.28.177 0:0:0:0:0:ffff:7e7b:1cb1
126.123.28.178 0:0:0:0:0:ffff:7e7b:1cb2
126.123.28.179 0:0:0:0:0:ffff:7e7b:1cb3
126.123.28.180 0:0:0:0:0:ffff:7e7b:1cb4


126.123.28.181 0:0:0:0:0:ffff:7e7b:1cb5
126.123.28.182 0:0:0:0:0:ffff:7e7b:1cb6
126.123.28.183 0:0:0:0:0:ffff:7e7b:1cb7
126.123.28.184 0:0:0:0:0:ffff:7e7b:1cb8
126.123.28.185 0:0:0:0:0:ffff:7e7b:1cb9
126.123.28.186 0:0:0:0:0:ffff:7e7b:1cba
126.123.28.187 0:0:0:0:0:ffff:7e7b:1cbb
126.123.28.188 0:0:0:0:0:ffff:7e7b:1cbc
126.123.28.189 0:0:0:0:0:ffff:7e7b:1cbd
126.123.28.190 0:0:0:0:0:ffff:7e7b:1cbe
126.123.28.191 0:0:0:0:0:ffff:7e7b:1cbf
126.123.28.192 0:0:0:0:0:ffff:7e7b:1cc0
126.123.28.193 0:0:0:0:0:ffff:7e7b:1cc1
126.123.28.194 0:0:0:0:0:ffff:7e7b:1cc2
126.123.28.195 0:0:0:0:0:ffff:7e7b:1cc3
126.123.28.196 0:0:0:0:0:ffff:7e7b:1cc4
126.123.28.197 0:0:0:0:0:ffff:7e7b:1cc5
126.123.28.198 0:0:0:0:0:ffff:7e7b:1cc6
126.123.28.199 0:0:0:0:0:ffff:7e7b:1cc7
126.123.28.200 0:0:0:0:0:ffff:7e7b:1cc8
126.123.28.201 0:0:0:0:0:ffff:7e7b:1cc9
126.123.28.202 0:0:0:0:0:ffff:7e7b:1cca
126.123.28.203 0:0:0:0:0:ffff:7e7b:1ccb
126.123.28.204 0:0:0:0:0:ffff:7e7b:1ccc
126.123.28.205 0:0:0:0:0:ffff:7e7b:1ccd
126.123.28.206 0:0:0:0:0:ffff:7e7b:1cce
126.123.28.207 0:0:0:0:0:ffff:7e7b:1ccf
126.123.28.208 0:0:0:0:0:ffff:7e7b:1cd0
126.123.28.209 0:0:0:0:0:ffff:7e7b:1cd1
126.123.28.210 0:0:0:0:0:ffff:7e7b:1cd2
126.123.28.211 0:0:0:0:0:ffff:7e7b:1cd3
126.123.28.212 0:0:0:0:0:ffff:7e7b:1cd4
126.123.28.213 0:0:0:0:0:ffff:7e7b:1cd5
126.123.28.214 0:0:0:0:0:ffff:7e7b:1cd6
126.123.28.215 0:0:0:0:0:ffff:7e7b:1cd7
126.123.28.216 0:0:0:0:0:ffff:7e7b:1cd8
126.123.28.217 0:0:0:0:0:ffff:7e7b:1cd9
126.123.28.218 0:0:0:0:0:ffff:7e7b:1cda
126.123.28.219 0:0:0:0:0:ffff:7e7b:1cdb
126.123.28.220 0:0:0:0:0:ffff:7e7b:1cdc
126.123.28.221 0:0:0:0:0:ffff:7e7b:1cdd
126.123.28.222 0:0:0:0:0:ffff:7e7b:1cde
126.123.28.223 0:0:0:0:0:ffff:7e7b:1cdf
126.123.28.224 0:0:0:0:0:ffff:7e7b:1ce0
126.123.28.225 0:0:0:0:0:ffff:7e7b:1ce1
126.123.28.226 0:0:0:0:0:ffff:7e7b:1ce2
126.123.28.227 0:0:0:0:0:ffff:7e7b:1ce3
126.123.28.228 0:0:0:0:0:ffff:7e7b:1ce4
126.123.28.229 0:0:0:0:0:ffff:7e7b:1ce5
126.123.28.230 0:0:0:0:0:ffff:7e7b:1ce6
126.123.28.231 0:0:0:0:0:ffff:7e7b:1ce7
126.123.28.232 0:0:0:0:0:ffff:7e7b:1ce8
126.123.28.233 0:0:0:0:0:ffff:7e7b:1ce9
126.123.28.234 0:0:0:0:0:ffff:7e7b:1cea
126.123.28.235 0:0:0:0:0:ffff:7e7b:1ceb
126.123.28.236 0:0:0:0:0:ffff:7e7b:1cec
126.123.28.237 0:0:0:0:0:ffff:7e7b:1ced
126.123.28.238 0:0:0:0:0:ffff:7e7b:1cee
126.123.28.239 0:0:0:0:0:ffff:7e7b:1cef
126.123.28.240 0:0:0:0:0:ffff:7e7b:1cf0
126.123.28.241 0:0:0:0:0:ffff:7e7b:1cf1
126.123.28.242 0:0:0:0:0:ffff:7e7b:1cf2
126.123.28.243 0:0:0:0:0:ffff:7e7b:1cf3
126.123.28.244 0:0:0:0:0:ffff:7e7b:1cf4
126.123.28.245 0:0:0:0:0:ffff:7e7b:1cf5
126.123.28.246 0:0:0:0:0:ffff:7e7b:1cf6
126.123.28.247 0:0:0:0:0:ffff:7e7b:1cf7
126.123.28.248 0:0:0:0:0:ffff:7e7b:1cf8
126.123.28.249 0:0:0:0:0:ffff:7e7b:1cf9
126.123.28.250 0:0:0:0:0:ffff:7e7b:1cfa
126.123.28.251 0:0:0:0:0:ffff:7e7b:1cfb
126.123.28.252 0:0:0:0:0:ffff:7e7b:1cfc
126.123.28.253 0:0:0:0:0:ffff:7e7b:1cfd
126.123.28.254 0:0:0:0:0:ffff:7e7b:1cfe
126.123.28.255 0:0:0:0:0:ffff:7e7b:1cff


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.