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
123.255.76.1 0:0:0:0:0:ffff:7bff:4c01
123.255.76.2 0:0:0:0:0:ffff:7bff:4c02
123.255.76.3 0:0:0:0:0:ffff:7bff:4c03
123.255.76.4 0:0:0:0:0:ffff:7bff:4c04
123.255.76.5 0:0:0:0:0:ffff:7bff:4c05
123.255.76.6 0:0:0:0:0:ffff:7bff:4c06
123.255.76.7 0:0:0:0:0:ffff:7bff:4c07
123.255.76.8 0:0:0:0:0:ffff:7bff:4c08
123.255.76.9 0:0:0:0:0:ffff:7bff:4c09
123.255.76.10 0:0:0:0:0:ffff:7bff:4c0a
123.255.76.11 0:0:0:0:0:ffff:7bff:4c0b
123.255.76.12 0:0:0:0:0:ffff:7bff:4c0c
123.255.76.13 0:0:0:0:0:ffff:7bff:4c0d
123.255.76.14 0:0:0:0:0:ffff:7bff:4c0e
123.255.76.15 0:0:0:0:0:ffff:7bff:4c0f
123.255.76.16 0:0:0:0:0:ffff:7bff:4c10
123.255.76.17 0:0:0:0:0:ffff:7bff:4c11
123.255.76.18 0:0:0:0:0:ffff:7bff:4c12
123.255.76.19 0:0:0:0:0:ffff:7bff:4c13
123.255.76.20 0:0:0:0:0:ffff:7bff:4c14
123.255.76.21 0:0:0:0:0:ffff:7bff:4c15
123.255.76.22 0:0:0:0:0:ffff:7bff:4c16
123.255.76.23 0:0:0:0:0:ffff:7bff:4c17
123.255.76.24 0:0:0:0:0:ffff:7bff:4c18
123.255.76.25 0:0:0:0:0:ffff:7bff:4c19
123.255.76.26 0:0:0:0:0:ffff:7bff:4c1a
123.255.76.27 0:0:0:0:0:ffff:7bff:4c1b
123.255.76.28 0:0:0:0:0:ffff:7bff:4c1c
123.255.76.29 0:0:0:0:0:ffff:7bff:4c1d
123.255.76.30 0:0:0:0:0:ffff:7bff:4c1e
123.255.76.31 0:0:0:0:0:ffff:7bff:4c1f
123.255.76.32 0:0:0:0:0:ffff:7bff:4c20
123.255.76.33 0:0:0:0:0:ffff:7bff:4c21
123.255.76.34 0:0:0:0:0:ffff:7bff:4c22
123.255.76.35 0:0:0:0:0:ffff:7bff:4c23
123.255.76.36 0:0:0:0:0:ffff:7bff:4c24
123.255.76.37 0:0:0:0:0:ffff:7bff:4c25
123.255.76.38 0:0:0:0:0:ffff:7bff:4c26
123.255.76.39 0:0:0:0:0:ffff:7bff:4c27
123.255.76.40 0:0:0:0:0:ffff:7bff:4c28
123.255.76.41 0:0:0:0:0:ffff:7bff:4c29
123.255.76.42 0:0:0:0:0:ffff:7bff:4c2a
123.255.76.43 0:0:0:0:0:ffff:7bff:4c2b
123.255.76.44 0:0:0:0:0:ffff:7bff:4c2c
123.255.76.45 0:0:0:0:0:ffff:7bff:4c2d
123.255.76.46 0:0:0:0:0:ffff:7bff:4c2e
123.255.76.47 0:0:0:0:0:ffff:7bff:4c2f
123.255.76.48 0:0:0:0:0:ffff:7bff:4c30
123.255.76.49 0:0:0:0:0:ffff:7bff:4c31
123.255.76.50 0:0:0:0:0:ffff:7bff:4c32
123.255.76.51 0:0:0:0:0:ffff:7bff:4c33
123.255.76.52 0:0:0:0:0:ffff:7bff:4c34
123.255.76.53 0:0:0:0:0:ffff:7bff:4c35
123.255.76.54 0:0:0:0:0:ffff:7bff:4c36
123.255.76.55 0:0:0:0:0:ffff:7bff:4c37
123.255.76.56 0:0:0:0:0:ffff:7bff:4c38
123.255.76.57 0:0:0:0:0:ffff:7bff:4c39
123.255.76.58 0:0:0:0:0:ffff:7bff:4c3a
123.255.76.59 0:0:0:0:0:ffff:7bff:4c3b
123.255.76.60 0:0:0:0:0:ffff:7bff:4c3c


123.255.76.61 0:0:0:0:0:ffff:7bff:4c3d
123.255.76.62 0:0:0:0:0:ffff:7bff:4c3e
123.255.76.63 0:0:0:0:0:ffff:7bff:4c3f
123.255.76.64 0:0:0:0:0:ffff:7bff:4c40
123.255.76.65 0:0:0:0:0:ffff:7bff:4c41
123.255.76.66 0:0:0:0:0:ffff:7bff:4c42
123.255.76.67 0:0:0:0:0:ffff:7bff:4c43
123.255.76.68 0:0:0:0:0:ffff:7bff:4c44
123.255.76.69 0:0:0:0:0:ffff:7bff:4c45
123.255.76.70 0:0:0:0:0:ffff:7bff:4c46
123.255.76.71 0:0:0:0:0:ffff:7bff:4c47
123.255.76.72 0:0:0:0:0:ffff:7bff:4c48
123.255.76.73 0:0:0:0:0:ffff:7bff:4c49
123.255.76.74 0:0:0:0:0:ffff:7bff:4c4a
123.255.76.75 0:0:0:0:0:ffff:7bff:4c4b
123.255.76.76 0:0:0:0:0:ffff:7bff:4c4c
123.255.76.77 0:0:0:0:0:ffff:7bff:4c4d
123.255.76.78 0:0:0:0:0:ffff:7bff:4c4e
123.255.76.79 0:0:0:0:0:ffff:7bff:4c4f
123.255.76.80 0:0:0:0:0:ffff:7bff:4c50
123.255.76.81 0:0:0:0:0:ffff:7bff:4c51
123.255.76.82 0:0:0:0:0:ffff:7bff:4c52
123.255.76.83 0:0:0:0:0:ffff:7bff:4c53
123.255.76.84 0:0:0:0:0:ffff:7bff:4c54
123.255.76.85 0:0:0:0:0:ffff:7bff:4c55
123.255.76.86 0:0:0:0:0:ffff:7bff:4c56
123.255.76.87 0:0:0:0:0:ffff:7bff:4c57
123.255.76.88 0:0:0:0:0:ffff:7bff:4c58
123.255.76.89 0:0:0:0:0:ffff:7bff:4c59
123.255.76.90 0:0:0:0:0:ffff:7bff:4c5a
123.255.76.91 0:0:0:0:0:ffff:7bff:4c5b
123.255.76.92 0:0:0:0:0:ffff:7bff:4c5c
123.255.76.93 0:0:0:0:0:ffff:7bff:4c5d
123.255.76.94 0:0:0:0:0:ffff:7bff:4c5e
123.255.76.95 0:0:0:0:0:ffff:7bff:4c5f
123.255.76.96 0:0:0:0:0:ffff:7bff:4c60
123.255.76.97 0:0:0:0:0:ffff:7bff:4c61
123.255.76.98 0:0:0:0:0:ffff:7bff:4c62
123.255.76.99 0:0:0:0:0:ffff:7bff:4c63
123.255.76.100 0:0:0:0:0:ffff:7bff:4c64
123.255.76.101 0:0:0:0:0:ffff:7bff:4c65
123.255.76.102 0:0:0:0:0:ffff:7bff:4c66
123.255.76.103 0:0:0:0:0:ffff:7bff:4c67
123.255.76.104 0:0:0:0:0:ffff:7bff:4c68
123.255.76.105 0:0:0:0:0:ffff:7bff:4c69
123.255.76.106 0:0:0:0:0:ffff:7bff:4c6a
123.255.76.107 0:0:0:0:0:ffff:7bff:4c6b
123.255.76.108 0:0:0:0:0:ffff:7bff:4c6c
123.255.76.109 0:0:0:0:0:ffff:7bff:4c6d
123.255.76.110 0:0:0:0:0:ffff:7bff:4c6e
123.255.76.111 0:0:0:0:0:ffff:7bff:4c6f
123.255.76.112 0:0:0:0:0:ffff:7bff:4c70
123.255.76.113 0:0:0:0:0:ffff:7bff:4c71
123.255.76.114 0:0:0:0:0:ffff:7bff:4c72
123.255.76.115 0:0:0:0:0:ffff:7bff:4c73
123.255.76.116 0:0:0:0:0:ffff:7bff:4c74
123.255.76.117 0:0:0:0:0:ffff:7bff:4c75
123.255.76.118 0:0:0:0:0:ffff:7bff:4c76
123.255.76.119 0:0:0:0:0:ffff:7bff:4c77
123.255.76.120 0:0:0:0:0:ffff:7bff:4c78


123.255.76.121 0:0:0:0:0:ffff:7bff:4c79
123.255.76.122 0:0:0:0:0:ffff:7bff:4c7a
123.255.76.123 0:0:0:0:0:ffff:7bff:4c7b
123.255.76.124 0:0:0:0:0:ffff:7bff:4c7c
123.255.76.125 0:0:0:0:0:ffff:7bff:4c7d
123.255.76.126 0:0:0:0:0:ffff:7bff:4c7e
123.255.76.127 0:0:0:0:0:ffff:7bff:4c7f
123.255.76.128 0:0:0:0:0:ffff:7bff:4c80
123.255.76.129 0:0:0:0:0:ffff:7bff:4c81
123.255.76.130 0:0:0:0:0:ffff:7bff:4c82
123.255.76.131 0:0:0:0:0:ffff:7bff:4c83
123.255.76.132 0:0:0:0:0:ffff:7bff:4c84
123.255.76.133 0:0:0:0:0:ffff:7bff:4c85
123.255.76.134 0:0:0:0:0:ffff:7bff:4c86
123.255.76.135 0:0:0:0:0:ffff:7bff:4c87
123.255.76.136 0:0:0:0:0:ffff:7bff:4c88
123.255.76.137 0:0:0:0:0:ffff:7bff:4c89
123.255.76.138 0:0:0:0:0:ffff:7bff:4c8a
123.255.76.139 0:0:0:0:0:ffff:7bff:4c8b
123.255.76.140 0:0:0:0:0:ffff:7bff:4c8c
123.255.76.141 0:0:0:0:0:ffff:7bff:4c8d
123.255.76.142 0:0:0:0:0:ffff:7bff:4c8e
123.255.76.143 0:0:0:0:0:ffff:7bff:4c8f
123.255.76.144 0:0:0:0:0:ffff:7bff:4c90
123.255.76.145 0:0:0:0:0:ffff:7bff:4c91
123.255.76.146 0:0:0:0:0:ffff:7bff:4c92
123.255.76.147 0:0:0:0:0:ffff:7bff:4c93
123.255.76.148 0:0:0:0:0:ffff:7bff:4c94
123.255.76.149 0:0:0:0:0:ffff:7bff:4c95
123.255.76.150 0:0:0:0:0:ffff:7bff:4c96
123.255.76.151 0:0:0:0:0:ffff:7bff:4c97
123.255.76.152 0:0:0:0:0:ffff:7bff:4c98
123.255.76.153 0:0:0:0:0:ffff:7bff:4c99
123.255.76.154 0:0:0:0:0:ffff:7bff:4c9a
123.255.76.155 0:0:0:0:0:ffff:7bff:4c9b
123.255.76.156 0:0:0:0:0:ffff:7bff:4c9c
123.255.76.157 0:0:0:0:0:ffff:7bff:4c9d
123.255.76.158 0:0:0:0:0:ffff:7bff:4c9e
123.255.76.159 0:0:0:0:0:ffff:7bff:4c9f
123.255.76.160 0:0:0:0:0:ffff:7bff:4ca0
123.255.76.161 0:0:0:0:0:ffff:7bff:4ca1
123.255.76.162 0:0:0:0:0:ffff:7bff:4ca2
123.255.76.163 0:0:0:0:0:ffff:7bff:4ca3
123.255.76.164 0:0:0:0:0:ffff:7bff:4ca4
123.255.76.165 0:0:0:0:0:ffff:7bff:4ca5
123.255.76.166 0:0:0:0:0:ffff:7bff:4ca6
123.255.76.167 0:0:0:0:0:ffff:7bff:4ca7
123.255.76.168 0:0:0:0:0:ffff:7bff:4ca8
123.255.76.169 0:0:0:0:0:ffff:7bff:4ca9
123.255.76.170 0:0:0:0:0:ffff:7bff:4caa
123.255.76.171 0:0:0:0:0:ffff:7bff:4cab
123.255.76.172 0:0:0:0:0:ffff:7bff:4cac
123.255.76.173 0:0:0:0:0:ffff:7bff:4cad
123.255.76.174 0:0:0:0:0:ffff:7bff:4cae
123.255.76.175 0:0:0:0:0:ffff:7bff:4caf
123.255.76.176 0:0:0:0:0:ffff:7bff:4cb0
123.255.76.177 0:0:0:0:0:ffff:7bff:4cb1
123.255.76.178 0:0:0:0:0:ffff:7bff:4cb2
123.255.76.179 0:0:0:0:0:ffff:7bff:4cb3
123.255.76.180 0:0:0:0:0:ffff:7bff:4cb4


123.255.76.181 0:0:0:0:0:ffff:7bff:4cb5
123.255.76.182 0:0:0:0:0:ffff:7bff:4cb6
123.255.76.183 0:0:0:0:0:ffff:7bff:4cb7
123.255.76.184 0:0:0:0:0:ffff:7bff:4cb8
123.255.76.185 0:0:0:0:0:ffff:7bff:4cb9
123.255.76.186 0:0:0:0:0:ffff:7bff:4cba
123.255.76.187 0:0:0:0:0:ffff:7bff:4cbb
123.255.76.188 0:0:0:0:0:ffff:7bff:4cbc
123.255.76.189 0:0:0:0:0:ffff:7bff:4cbd
123.255.76.190 0:0:0:0:0:ffff:7bff:4cbe
123.255.76.191 0:0:0:0:0:ffff:7bff:4cbf
123.255.76.192 0:0:0:0:0:ffff:7bff:4cc0
123.255.76.193 0:0:0:0:0:ffff:7bff:4cc1
123.255.76.194 0:0:0:0:0:ffff:7bff:4cc2
123.255.76.195 0:0:0:0:0:ffff:7bff:4cc3
123.255.76.196 0:0:0:0:0:ffff:7bff:4cc4
123.255.76.197 0:0:0:0:0:ffff:7bff:4cc5
123.255.76.198 0:0:0:0:0:ffff:7bff:4cc6
123.255.76.199 0:0:0:0:0:ffff:7bff:4cc7
123.255.76.200 0:0:0:0:0:ffff:7bff:4cc8
123.255.76.201 0:0:0:0:0:ffff:7bff:4cc9
123.255.76.202 0:0:0:0:0:ffff:7bff:4cca
123.255.76.203 0:0:0:0:0:ffff:7bff:4ccb
123.255.76.204 0:0:0:0:0:ffff:7bff:4ccc
123.255.76.205 0:0:0:0:0:ffff:7bff:4ccd
123.255.76.206 0:0:0:0:0:ffff:7bff:4cce
123.255.76.207 0:0:0:0:0:ffff:7bff:4ccf
123.255.76.208 0:0:0:0:0:ffff:7bff:4cd0
123.255.76.209 0:0:0:0:0:ffff:7bff:4cd1
123.255.76.210 0:0:0:0:0:ffff:7bff:4cd2
123.255.76.211 0:0:0:0:0:ffff:7bff:4cd3
123.255.76.212 0:0:0:0:0:ffff:7bff:4cd4
123.255.76.213 0:0:0:0:0:ffff:7bff:4cd5
123.255.76.214 0:0:0:0:0:ffff:7bff:4cd6
123.255.76.215 0:0:0:0:0:ffff:7bff:4cd7
123.255.76.216 0:0:0:0:0:ffff:7bff:4cd8
123.255.76.217 0:0:0:0:0:ffff:7bff:4cd9
123.255.76.218 0:0:0:0:0:ffff:7bff:4cda
123.255.76.219 0:0:0:0:0:ffff:7bff:4cdb
123.255.76.220 0:0:0:0:0:ffff:7bff:4cdc
123.255.76.221 0:0:0:0:0:ffff:7bff:4cdd
123.255.76.222 0:0:0:0:0:ffff:7bff:4cde
123.255.76.223 0:0:0:0:0:ffff:7bff:4cdf
123.255.76.224 0:0:0:0:0:ffff:7bff:4ce0
123.255.76.225 0:0:0:0:0:ffff:7bff:4ce1
123.255.76.226 0:0:0:0:0:ffff:7bff:4ce2
123.255.76.227 0:0:0:0:0:ffff:7bff:4ce3
123.255.76.228 0:0:0:0:0:ffff:7bff:4ce4
123.255.76.229 0:0:0:0:0:ffff:7bff:4ce5
123.255.76.230 0:0:0:0:0:ffff:7bff:4ce6
123.255.76.231 0:0:0:0:0:ffff:7bff:4ce7
123.255.76.232 0:0:0:0:0:ffff:7bff:4ce8
123.255.76.233 0:0:0:0:0:ffff:7bff:4ce9
123.255.76.234 0:0:0:0:0:ffff:7bff:4cea
123.255.76.235 0:0:0:0:0:ffff:7bff:4ceb
123.255.76.236 0:0:0:0:0:ffff:7bff:4cec
123.255.76.237 0:0:0:0:0:ffff:7bff:4ced
123.255.76.238 0:0:0:0:0:ffff:7bff:4cee
123.255.76.239 0:0:0:0:0:ffff:7bff:4cef
123.255.76.240 0:0:0:0:0:ffff:7bff:4cf0
123.255.76.241 0:0:0:0:0:ffff:7bff:4cf1
123.255.76.242 0:0:0:0:0:ffff:7bff:4cf2
123.255.76.243 0:0:0:0:0:ffff:7bff:4cf3
123.255.76.244 0:0:0:0:0:ffff:7bff:4cf4
123.255.76.245 0:0:0:0:0:ffff:7bff:4cf5
123.255.76.246 0:0:0:0:0:ffff:7bff:4cf6
123.255.76.247 0:0:0:0:0:ffff:7bff:4cf7
123.255.76.248 0:0:0:0:0:ffff:7bff:4cf8
123.255.76.249 0:0:0:0:0:ffff:7bff:4cf9
123.255.76.250 0:0:0:0:0:ffff:7bff:4cfa
123.255.76.251 0:0:0:0:0:ffff:7bff:4cfb
123.255.76.252 0:0:0:0:0:ffff:7bff:4cfc
123.255.76.253 0:0:0:0:0:ffff:7bff:4cfd
123.255.76.254 0:0:0:0:0:ffff:7bff:4cfe
123.255.76.255 0:0:0:0:0:ffff:7bff:4cff


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.