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
123.215.255.1 0:0:0:0:0:ffff:7bd7:ff01
123.215.255.2 0:0:0:0:0:ffff:7bd7:ff02
123.215.255.3 0:0:0:0:0:ffff:7bd7:ff03
123.215.255.4 0:0:0:0:0:ffff:7bd7:ff04
123.215.255.5 0:0:0:0:0:ffff:7bd7:ff05
123.215.255.6 0:0:0:0:0:ffff:7bd7:ff06
123.215.255.7 0:0:0:0:0:ffff:7bd7:ff07
123.215.255.8 0:0:0:0:0:ffff:7bd7:ff08
123.215.255.9 0:0:0:0:0:ffff:7bd7:ff09
123.215.255.10 0:0:0:0:0:ffff:7bd7:ff0a
123.215.255.11 0:0:0:0:0:ffff:7bd7:ff0b
123.215.255.12 0:0:0:0:0:ffff:7bd7:ff0c
123.215.255.13 0:0:0:0:0:ffff:7bd7:ff0d
123.215.255.14 0:0:0:0:0:ffff:7bd7:ff0e
123.215.255.15 0:0:0:0:0:ffff:7bd7:ff0f
123.215.255.16 0:0:0:0:0:ffff:7bd7:ff10
123.215.255.17 0:0:0:0:0:ffff:7bd7:ff11
123.215.255.18 0:0:0:0:0:ffff:7bd7:ff12
123.215.255.19 0:0:0:0:0:ffff:7bd7:ff13
123.215.255.20 0:0:0:0:0:ffff:7bd7:ff14
123.215.255.21 0:0:0:0:0:ffff:7bd7:ff15
123.215.255.22 0:0:0:0:0:ffff:7bd7:ff16
123.215.255.23 0:0:0:0:0:ffff:7bd7:ff17
123.215.255.24 0:0:0:0:0:ffff:7bd7:ff18
123.215.255.25 0:0:0:0:0:ffff:7bd7:ff19
123.215.255.26 0:0:0:0:0:ffff:7bd7:ff1a
123.215.255.27 0:0:0:0:0:ffff:7bd7:ff1b
123.215.255.28 0:0:0:0:0:ffff:7bd7:ff1c
123.215.255.29 0:0:0:0:0:ffff:7bd7:ff1d
123.215.255.30 0:0:0:0:0:ffff:7bd7:ff1e
123.215.255.31 0:0:0:0:0:ffff:7bd7:ff1f
123.215.255.32 0:0:0:0:0:ffff:7bd7:ff20
123.215.255.33 0:0:0:0:0:ffff:7bd7:ff21
123.215.255.34 0:0:0:0:0:ffff:7bd7:ff22
123.215.255.35 0:0:0:0:0:ffff:7bd7:ff23
123.215.255.36 0:0:0:0:0:ffff:7bd7:ff24
123.215.255.37 0:0:0:0:0:ffff:7bd7:ff25
123.215.255.38 0:0:0:0:0:ffff:7bd7:ff26
123.215.255.39 0:0:0:0:0:ffff:7bd7:ff27
123.215.255.40 0:0:0:0:0:ffff:7bd7:ff28
123.215.255.41 0:0:0:0:0:ffff:7bd7:ff29
123.215.255.42 0:0:0:0:0:ffff:7bd7:ff2a
123.215.255.43 0:0:0:0:0:ffff:7bd7:ff2b
123.215.255.44 0:0:0:0:0:ffff:7bd7:ff2c
123.215.255.45 0:0:0:0:0:ffff:7bd7:ff2d
123.215.255.46 0:0:0:0:0:ffff:7bd7:ff2e
123.215.255.47 0:0:0:0:0:ffff:7bd7:ff2f
123.215.255.48 0:0:0:0:0:ffff:7bd7:ff30
123.215.255.49 0:0:0:0:0:ffff:7bd7:ff31
123.215.255.50 0:0:0:0:0:ffff:7bd7:ff32
123.215.255.51 0:0:0:0:0:ffff:7bd7:ff33
123.215.255.52 0:0:0:0:0:ffff:7bd7:ff34
123.215.255.53 0:0:0:0:0:ffff:7bd7:ff35
123.215.255.54 0:0:0:0:0:ffff:7bd7:ff36
123.215.255.55 0:0:0:0:0:ffff:7bd7:ff37
123.215.255.56 0:0:0:0:0:ffff:7bd7:ff38
123.215.255.57 0:0:0:0:0:ffff:7bd7:ff39
123.215.255.58 0:0:0:0:0:ffff:7bd7:ff3a
123.215.255.59 0:0:0:0:0:ffff:7bd7:ff3b
123.215.255.60 0:0:0:0:0:ffff:7bd7:ff3c


123.215.255.61 0:0:0:0:0:ffff:7bd7:ff3d
123.215.255.62 0:0:0:0:0:ffff:7bd7:ff3e
123.215.255.63 0:0:0:0:0:ffff:7bd7:ff3f
123.215.255.64 0:0:0:0:0:ffff:7bd7:ff40
123.215.255.65 0:0:0:0:0:ffff:7bd7:ff41
123.215.255.66 0:0:0:0:0:ffff:7bd7:ff42
123.215.255.67 0:0:0:0:0:ffff:7bd7:ff43
123.215.255.68 0:0:0:0:0:ffff:7bd7:ff44
123.215.255.69 0:0:0:0:0:ffff:7bd7:ff45
123.215.255.70 0:0:0:0:0:ffff:7bd7:ff46
123.215.255.71 0:0:0:0:0:ffff:7bd7:ff47
123.215.255.72 0:0:0:0:0:ffff:7bd7:ff48
123.215.255.73 0:0:0:0:0:ffff:7bd7:ff49
123.215.255.74 0:0:0:0:0:ffff:7bd7:ff4a
123.215.255.75 0:0:0:0:0:ffff:7bd7:ff4b
123.215.255.76 0:0:0:0:0:ffff:7bd7:ff4c
123.215.255.77 0:0:0:0:0:ffff:7bd7:ff4d
123.215.255.78 0:0:0:0:0:ffff:7bd7:ff4e
123.215.255.79 0:0:0:0:0:ffff:7bd7:ff4f
123.215.255.80 0:0:0:0:0:ffff:7bd7:ff50
123.215.255.81 0:0:0:0:0:ffff:7bd7:ff51
123.215.255.82 0:0:0:0:0:ffff:7bd7:ff52
123.215.255.83 0:0:0:0:0:ffff:7bd7:ff53
123.215.255.84 0:0:0:0:0:ffff:7bd7:ff54
123.215.255.85 0:0:0:0:0:ffff:7bd7:ff55
123.215.255.86 0:0:0:0:0:ffff:7bd7:ff56
123.215.255.87 0:0:0:0:0:ffff:7bd7:ff57
123.215.255.88 0:0:0:0:0:ffff:7bd7:ff58
123.215.255.89 0:0:0:0:0:ffff:7bd7:ff59
123.215.255.90 0:0:0:0:0:ffff:7bd7:ff5a
123.215.255.91 0:0:0:0:0:ffff:7bd7:ff5b
123.215.255.92 0:0:0:0:0:ffff:7bd7:ff5c
123.215.255.93 0:0:0:0:0:ffff:7bd7:ff5d
123.215.255.94 0:0:0:0:0:ffff:7bd7:ff5e
123.215.255.95 0:0:0:0:0:ffff:7bd7:ff5f
123.215.255.96 0:0:0:0:0:ffff:7bd7:ff60
123.215.255.97 0:0:0:0:0:ffff:7bd7:ff61
123.215.255.98 0:0:0:0:0:ffff:7bd7:ff62
123.215.255.99 0:0:0:0:0:ffff:7bd7:ff63
123.215.255.100 0:0:0:0:0:ffff:7bd7:ff64
123.215.255.101 0:0:0:0:0:ffff:7bd7:ff65
123.215.255.102 0:0:0:0:0:ffff:7bd7:ff66
123.215.255.103 0:0:0:0:0:ffff:7bd7:ff67
123.215.255.104 0:0:0:0:0:ffff:7bd7:ff68
123.215.255.105 0:0:0:0:0:ffff:7bd7:ff69
123.215.255.106 0:0:0:0:0:ffff:7bd7:ff6a
123.215.255.107 0:0:0:0:0:ffff:7bd7:ff6b
123.215.255.108 0:0:0:0:0:ffff:7bd7:ff6c
123.215.255.109 0:0:0:0:0:ffff:7bd7:ff6d
123.215.255.110 0:0:0:0:0:ffff:7bd7:ff6e
123.215.255.111 0:0:0:0:0:ffff:7bd7:ff6f
123.215.255.112 0:0:0:0:0:ffff:7bd7:ff70
123.215.255.113 0:0:0:0:0:ffff:7bd7:ff71
123.215.255.114 0:0:0:0:0:ffff:7bd7:ff72
123.215.255.115 0:0:0:0:0:ffff:7bd7:ff73
123.215.255.116 0:0:0:0:0:ffff:7bd7:ff74
123.215.255.117 0:0:0:0:0:ffff:7bd7:ff75
123.215.255.118 0:0:0:0:0:ffff:7bd7:ff76
123.215.255.119 0:0:0:0:0:ffff:7bd7:ff77
123.215.255.120 0:0:0:0:0:ffff:7bd7:ff78


123.215.255.121 0:0:0:0:0:ffff:7bd7:ff79
123.215.255.122 0:0:0:0:0:ffff:7bd7:ff7a
123.215.255.123 0:0:0:0:0:ffff:7bd7:ff7b
123.215.255.124 0:0:0:0:0:ffff:7bd7:ff7c
123.215.255.125 0:0:0:0:0:ffff:7bd7:ff7d
123.215.255.126 0:0:0:0:0:ffff:7bd7:ff7e
123.215.255.127 0:0:0:0:0:ffff:7bd7:ff7f
123.215.255.128 0:0:0:0:0:ffff:7bd7:ff80
123.215.255.129 0:0:0:0:0:ffff:7bd7:ff81
123.215.255.130 0:0:0:0:0:ffff:7bd7:ff82
123.215.255.131 0:0:0:0:0:ffff:7bd7:ff83
123.215.255.132 0:0:0:0:0:ffff:7bd7:ff84
123.215.255.133 0:0:0:0:0:ffff:7bd7:ff85
123.215.255.134 0:0:0:0:0:ffff:7bd7:ff86
123.215.255.135 0:0:0:0:0:ffff:7bd7:ff87
123.215.255.136 0:0:0:0:0:ffff:7bd7:ff88
123.215.255.137 0:0:0:0:0:ffff:7bd7:ff89
123.215.255.138 0:0:0:0:0:ffff:7bd7:ff8a
123.215.255.139 0:0:0:0:0:ffff:7bd7:ff8b
123.215.255.140 0:0:0:0:0:ffff:7bd7:ff8c
123.215.255.141 0:0:0:0:0:ffff:7bd7:ff8d
123.215.255.142 0:0:0:0:0:ffff:7bd7:ff8e
123.215.255.143 0:0:0:0:0:ffff:7bd7:ff8f
123.215.255.144 0:0:0:0:0:ffff:7bd7:ff90
123.215.255.145 0:0:0:0:0:ffff:7bd7:ff91
123.215.255.146 0:0:0:0:0:ffff:7bd7:ff92
123.215.255.147 0:0:0:0:0:ffff:7bd7:ff93
123.215.255.148 0:0:0:0:0:ffff:7bd7:ff94
123.215.255.149 0:0:0:0:0:ffff:7bd7:ff95
123.215.255.150 0:0:0:0:0:ffff:7bd7:ff96
123.215.255.151 0:0:0:0:0:ffff:7bd7:ff97
123.215.255.152 0:0:0:0:0:ffff:7bd7:ff98
123.215.255.153 0:0:0:0:0:ffff:7bd7:ff99
123.215.255.154 0:0:0:0:0:ffff:7bd7:ff9a
123.215.255.155 0:0:0:0:0:ffff:7bd7:ff9b
123.215.255.156 0:0:0:0:0:ffff:7bd7:ff9c
123.215.255.157 0:0:0:0:0:ffff:7bd7:ff9d
123.215.255.158 0:0:0:0:0:ffff:7bd7:ff9e
123.215.255.159 0:0:0:0:0:ffff:7bd7:ff9f
123.215.255.160 0:0:0:0:0:ffff:7bd7:ffa0
123.215.255.161 0:0:0:0:0:ffff:7bd7:ffa1
123.215.255.162 0:0:0:0:0:ffff:7bd7:ffa2
123.215.255.163 0:0:0:0:0:ffff:7bd7:ffa3
123.215.255.164 0:0:0:0:0:ffff:7bd7:ffa4
123.215.255.165 0:0:0:0:0:ffff:7bd7:ffa5
123.215.255.166 0:0:0:0:0:ffff:7bd7:ffa6
123.215.255.167 0:0:0:0:0:ffff:7bd7:ffa7
123.215.255.168 0:0:0:0:0:ffff:7bd7:ffa8
123.215.255.169 0:0:0:0:0:ffff:7bd7:ffa9
123.215.255.170 0:0:0:0:0:ffff:7bd7:ffaa
123.215.255.171 0:0:0:0:0:ffff:7bd7:ffab
123.215.255.172 0:0:0:0:0:ffff:7bd7:ffac
123.215.255.173 0:0:0:0:0:ffff:7bd7:ffad
123.215.255.174 0:0:0:0:0:ffff:7bd7:ffae
123.215.255.175 0:0:0:0:0:ffff:7bd7:ffaf
123.215.255.176 0:0:0:0:0:ffff:7bd7:ffb0
123.215.255.177 0:0:0:0:0:ffff:7bd7:ffb1
123.215.255.178 0:0:0:0:0:ffff:7bd7:ffb2
123.215.255.179 0:0:0:0:0:ffff:7bd7:ffb3
123.215.255.180 0:0:0:0:0:ffff:7bd7:ffb4


123.215.255.181 0:0:0:0:0:ffff:7bd7:ffb5
123.215.255.182 0:0:0:0:0:ffff:7bd7:ffb6
123.215.255.183 0:0:0:0:0:ffff:7bd7:ffb7
123.215.255.184 0:0:0:0:0:ffff:7bd7:ffb8
123.215.255.185 0:0:0:0:0:ffff:7bd7:ffb9
123.215.255.186 0:0:0:0:0:ffff:7bd7:ffba
123.215.255.187 0:0:0:0:0:ffff:7bd7:ffbb
123.215.255.188 0:0:0:0:0:ffff:7bd7:ffbc
123.215.255.189 0:0:0:0:0:ffff:7bd7:ffbd
123.215.255.190 0:0:0:0:0:ffff:7bd7:ffbe
123.215.255.191 0:0:0:0:0:ffff:7bd7:ffbf
123.215.255.192 0:0:0:0:0:ffff:7bd7:ffc0
123.215.255.193 0:0:0:0:0:ffff:7bd7:ffc1
123.215.255.194 0:0:0:0:0:ffff:7bd7:ffc2
123.215.255.195 0:0:0:0:0:ffff:7bd7:ffc3
123.215.255.196 0:0:0:0:0:ffff:7bd7:ffc4
123.215.255.197 0:0:0:0:0:ffff:7bd7:ffc5
123.215.255.198 0:0:0:0:0:ffff:7bd7:ffc6
123.215.255.199 0:0:0:0:0:ffff:7bd7:ffc7
123.215.255.200 0:0:0:0:0:ffff:7bd7:ffc8
123.215.255.201 0:0:0:0:0:ffff:7bd7:ffc9
123.215.255.202 0:0:0:0:0:ffff:7bd7:ffca
123.215.255.203 0:0:0:0:0:ffff:7bd7:ffcb
123.215.255.204 0:0:0:0:0:ffff:7bd7:ffcc
123.215.255.205 0:0:0:0:0:ffff:7bd7:ffcd
123.215.255.206 0:0:0:0:0:ffff:7bd7:ffce
123.215.255.207 0:0:0:0:0:ffff:7bd7:ffcf
123.215.255.208 0:0:0:0:0:ffff:7bd7:ffd0
123.215.255.209 0:0:0:0:0:ffff:7bd7:ffd1
123.215.255.210 0:0:0:0:0:ffff:7bd7:ffd2
123.215.255.211 0:0:0:0:0:ffff:7bd7:ffd3
123.215.255.212 0:0:0:0:0:ffff:7bd7:ffd4
123.215.255.213 0:0:0:0:0:ffff:7bd7:ffd5
123.215.255.214 0:0:0:0:0:ffff:7bd7:ffd6
123.215.255.215 0:0:0:0:0:ffff:7bd7:ffd7
123.215.255.216 0:0:0:0:0:ffff:7bd7:ffd8
123.215.255.217 0:0:0:0:0:ffff:7bd7:ffd9
123.215.255.218 0:0:0:0:0:ffff:7bd7:ffda
123.215.255.219 0:0:0:0:0:ffff:7bd7:ffdb
123.215.255.220 0:0:0:0:0:ffff:7bd7:ffdc
123.215.255.221 0:0:0:0:0:ffff:7bd7:ffdd
123.215.255.222 0:0:0:0:0:ffff:7bd7:ffde
123.215.255.223 0:0:0:0:0:ffff:7bd7:ffdf
123.215.255.224 0:0:0:0:0:ffff:7bd7:ffe0
123.215.255.225 0:0:0:0:0:ffff:7bd7:ffe1
123.215.255.226 0:0:0:0:0:ffff:7bd7:ffe2
123.215.255.227 0:0:0:0:0:ffff:7bd7:ffe3
123.215.255.228 0:0:0:0:0:ffff:7bd7:ffe4
123.215.255.229 0:0:0:0:0:ffff:7bd7:ffe5
123.215.255.230 0:0:0:0:0:ffff:7bd7:ffe6
123.215.255.231 0:0:0:0:0:ffff:7bd7:ffe7
123.215.255.232 0:0:0:0:0:ffff:7bd7:ffe8
123.215.255.233 0:0:0:0:0:ffff:7bd7:ffe9
123.215.255.234 0:0:0:0:0:ffff:7bd7:ffea
123.215.255.235 0:0:0:0:0:ffff:7bd7:ffeb
123.215.255.236 0:0:0:0:0:ffff:7bd7:ffec
123.215.255.237 0:0:0:0:0:ffff:7bd7:ffed
123.215.255.238 0:0:0:0:0:ffff:7bd7:ffee
123.215.255.239 0:0:0:0:0:ffff:7bd7:ffef
123.215.255.240 0:0:0:0:0:ffff:7bd7:fff0
123.215.255.241 0:0:0:0:0:ffff:7bd7:fff1
123.215.255.242 0:0:0:0:0:ffff:7bd7:fff2
123.215.255.243 0:0:0:0:0:ffff:7bd7:fff3
123.215.255.244 0:0:0:0:0:ffff:7bd7:fff4
123.215.255.245 0:0:0:0:0:ffff:7bd7:fff5
123.215.255.246 0:0:0:0:0:ffff:7bd7:fff6
123.215.255.247 0:0:0:0:0:ffff:7bd7:fff7
123.215.255.248 0:0:0:0:0:ffff:7bd7:fff8
123.215.255.249 0:0:0:0:0:ffff:7bd7:fff9
123.215.255.250 0:0:0:0:0:ffff:7bd7:fffa
123.215.255.251 0:0:0:0:0:ffff:7bd7:fffb
123.215.255.252 0:0:0:0:0:ffff:7bd7:fffc
123.215.255.253 0:0:0:0:0:ffff:7bd7:fffd
123.215.255.254 0:0:0:0:0:ffff:7bd7:fffe
123.215.255.255 0:0:0:0:0:ffff:7bd7:ffff


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.