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
125.40.45.1 0:0:0:0:0:ffff:7d28:2d01
125.40.45.2 0:0:0:0:0:ffff:7d28:2d02
125.40.45.3 0:0:0:0:0:ffff:7d28:2d03
125.40.45.4 0:0:0:0:0:ffff:7d28:2d04
125.40.45.5 0:0:0:0:0:ffff:7d28:2d05
125.40.45.6 0:0:0:0:0:ffff:7d28:2d06
125.40.45.7 0:0:0:0:0:ffff:7d28:2d07
125.40.45.8 0:0:0:0:0:ffff:7d28:2d08
125.40.45.9 0:0:0:0:0:ffff:7d28:2d09
125.40.45.10 0:0:0:0:0:ffff:7d28:2d0a
125.40.45.11 0:0:0:0:0:ffff:7d28:2d0b
125.40.45.12 0:0:0:0:0:ffff:7d28:2d0c
125.40.45.13 0:0:0:0:0:ffff:7d28:2d0d
125.40.45.14 0:0:0:0:0:ffff:7d28:2d0e
125.40.45.15 0:0:0:0:0:ffff:7d28:2d0f
125.40.45.16 0:0:0:0:0:ffff:7d28:2d10
125.40.45.17 0:0:0:0:0:ffff:7d28:2d11
125.40.45.18 0:0:0:0:0:ffff:7d28:2d12
125.40.45.19 0:0:0:0:0:ffff:7d28:2d13
125.40.45.20 0:0:0:0:0:ffff:7d28:2d14
125.40.45.21 0:0:0:0:0:ffff:7d28:2d15
125.40.45.22 0:0:0:0:0:ffff:7d28:2d16
125.40.45.23 0:0:0:0:0:ffff:7d28:2d17
125.40.45.24 0:0:0:0:0:ffff:7d28:2d18
125.40.45.25 0:0:0:0:0:ffff:7d28:2d19
125.40.45.26 0:0:0:0:0:ffff:7d28:2d1a
125.40.45.27 0:0:0:0:0:ffff:7d28:2d1b
125.40.45.28 0:0:0:0:0:ffff:7d28:2d1c
125.40.45.29 0:0:0:0:0:ffff:7d28:2d1d
125.40.45.30 0:0:0:0:0:ffff:7d28:2d1e
125.40.45.31 0:0:0:0:0:ffff:7d28:2d1f
125.40.45.32 0:0:0:0:0:ffff:7d28:2d20
125.40.45.33 0:0:0:0:0:ffff:7d28:2d21
125.40.45.34 0:0:0:0:0:ffff:7d28:2d22
125.40.45.35 0:0:0:0:0:ffff:7d28:2d23
125.40.45.36 0:0:0:0:0:ffff:7d28:2d24
125.40.45.37 0:0:0:0:0:ffff:7d28:2d25
125.40.45.38 0:0:0:0:0:ffff:7d28:2d26
125.40.45.39 0:0:0:0:0:ffff:7d28:2d27
125.40.45.40 0:0:0:0:0:ffff:7d28:2d28
125.40.45.41 0:0:0:0:0:ffff:7d28:2d29
125.40.45.42 0:0:0:0:0:ffff:7d28:2d2a
125.40.45.43 0:0:0:0:0:ffff:7d28:2d2b
125.40.45.44 0:0:0:0:0:ffff:7d28:2d2c
125.40.45.45 0:0:0:0:0:ffff:7d28:2d2d
125.40.45.46 0:0:0:0:0:ffff:7d28:2d2e
125.40.45.47 0:0:0:0:0:ffff:7d28:2d2f
125.40.45.48 0:0:0:0:0:ffff:7d28:2d30
125.40.45.49 0:0:0:0:0:ffff:7d28:2d31
125.40.45.50 0:0:0:0:0:ffff:7d28:2d32
125.40.45.51 0:0:0:0:0:ffff:7d28:2d33
125.40.45.52 0:0:0:0:0:ffff:7d28:2d34
125.40.45.53 0:0:0:0:0:ffff:7d28:2d35
125.40.45.54 0:0:0:0:0:ffff:7d28:2d36
125.40.45.55 0:0:0:0:0:ffff:7d28:2d37
125.40.45.56 0:0:0:0:0:ffff:7d28:2d38
125.40.45.57 0:0:0:0:0:ffff:7d28:2d39
125.40.45.58 0:0:0:0:0:ffff:7d28:2d3a
125.40.45.59 0:0:0:0:0:ffff:7d28:2d3b
125.40.45.60 0:0:0:0:0:ffff:7d28:2d3c


125.40.45.61 0:0:0:0:0:ffff:7d28:2d3d
125.40.45.62 0:0:0:0:0:ffff:7d28:2d3e
125.40.45.63 0:0:0:0:0:ffff:7d28:2d3f
125.40.45.64 0:0:0:0:0:ffff:7d28:2d40
125.40.45.65 0:0:0:0:0:ffff:7d28:2d41
125.40.45.66 0:0:0:0:0:ffff:7d28:2d42
125.40.45.67 0:0:0:0:0:ffff:7d28:2d43
125.40.45.68 0:0:0:0:0:ffff:7d28:2d44
125.40.45.69 0:0:0:0:0:ffff:7d28:2d45
125.40.45.70 0:0:0:0:0:ffff:7d28:2d46
125.40.45.71 0:0:0:0:0:ffff:7d28:2d47
125.40.45.72 0:0:0:0:0:ffff:7d28:2d48
125.40.45.73 0:0:0:0:0:ffff:7d28:2d49
125.40.45.74 0:0:0:0:0:ffff:7d28:2d4a
125.40.45.75 0:0:0:0:0:ffff:7d28:2d4b
125.40.45.76 0:0:0:0:0:ffff:7d28:2d4c
125.40.45.77 0:0:0:0:0:ffff:7d28:2d4d
125.40.45.78 0:0:0:0:0:ffff:7d28:2d4e
125.40.45.79 0:0:0:0:0:ffff:7d28:2d4f
125.40.45.80 0:0:0:0:0:ffff:7d28:2d50
125.40.45.81 0:0:0:0:0:ffff:7d28:2d51
125.40.45.82 0:0:0:0:0:ffff:7d28:2d52
125.40.45.83 0:0:0:0:0:ffff:7d28:2d53
125.40.45.84 0:0:0:0:0:ffff:7d28:2d54
125.40.45.85 0:0:0:0:0:ffff:7d28:2d55
125.40.45.86 0:0:0:0:0:ffff:7d28:2d56
125.40.45.87 0:0:0:0:0:ffff:7d28:2d57
125.40.45.88 0:0:0:0:0:ffff:7d28:2d58
125.40.45.89 0:0:0:0:0:ffff:7d28:2d59
125.40.45.90 0:0:0:0:0:ffff:7d28:2d5a
125.40.45.91 0:0:0:0:0:ffff:7d28:2d5b
125.40.45.92 0:0:0:0:0:ffff:7d28:2d5c
125.40.45.93 0:0:0:0:0:ffff:7d28:2d5d
125.40.45.94 0:0:0:0:0:ffff:7d28:2d5e
125.40.45.95 0:0:0:0:0:ffff:7d28:2d5f
125.40.45.96 0:0:0:0:0:ffff:7d28:2d60
125.40.45.97 0:0:0:0:0:ffff:7d28:2d61
125.40.45.98 0:0:0:0:0:ffff:7d28:2d62
125.40.45.99 0:0:0:0:0:ffff:7d28:2d63
125.40.45.100 0:0:0:0:0:ffff:7d28:2d64
125.40.45.101 0:0:0:0:0:ffff:7d28:2d65
125.40.45.102 0:0:0:0:0:ffff:7d28:2d66
125.40.45.103 0:0:0:0:0:ffff:7d28:2d67
125.40.45.104 0:0:0:0:0:ffff:7d28:2d68
125.40.45.105 0:0:0:0:0:ffff:7d28:2d69
125.40.45.106 0:0:0:0:0:ffff:7d28:2d6a
125.40.45.107 0:0:0:0:0:ffff:7d28:2d6b
125.40.45.108 0:0:0:0:0:ffff:7d28:2d6c
125.40.45.109 0:0:0:0:0:ffff:7d28:2d6d
125.40.45.110 0:0:0:0:0:ffff:7d28:2d6e
125.40.45.111 0:0:0:0:0:ffff:7d28:2d6f
125.40.45.112 0:0:0:0:0:ffff:7d28:2d70
125.40.45.113 0:0:0:0:0:ffff:7d28:2d71
125.40.45.114 0:0:0:0:0:ffff:7d28:2d72
125.40.45.115 0:0:0:0:0:ffff:7d28:2d73
125.40.45.116 0:0:0:0:0:ffff:7d28:2d74
125.40.45.117 0:0:0:0:0:ffff:7d28:2d75
125.40.45.118 0:0:0:0:0:ffff:7d28:2d76
125.40.45.119 0:0:0:0:0:ffff:7d28:2d77
125.40.45.120 0:0:0:0:0:ffff:7d28:2d78


125.40.45.121 0:0:0:0:0:ffff:7d28:2d79
125.40.45.122 0:0:0:0:0:ffff:7d28:2d7a
125.40.45.123 0:0:0:0:0:ffff:7d28:2d7b
125.40.45.124 0:0:0:0:0:ffff:7d28:2d7c
125.40.45.125 0:0:0:0:0:ffff:7d28:2d7d
125.40.45.126 0:0:0:0:0:ffff:7d28:2d7e
125.40.45.127 0:0:0:0:0:ffff:7d28:2d7f
125.40.45.128 0:0:0:0:0:ffff:7d28:2d80
125.40.45.129 0:0:0:0:0:ffff:7d28:2d81
125.40.45.130 0:0:0:0:0:ffff:7d28:2d82
125.40.45.131 0:0:0:0:0:ffff:7d28:2d83
125.40.45.132 0:0:0:0:0:ffff:7d28:2d84
125.40.45.133 0:0:0:0:0:ffff:7d28:2d85
125.40.45.134 0:0:0:0:0:ffff:7d28:2d86
125.40.45.135 0:0:0:0:0:ffff:7d28:2d87
125.40.45.136 0:0:0:0:0:ffff:7d28:2d88
125.40.45.137 0:0:0:0:0:ffff:7d28:2d89
125.40.45.138 0:0:0:0:0:ffff:7d28:2d8a
125.40.45.139 0:0:0:0:0:ffff:7d28:2d8b
125.40.45.140 0:0:0:0:0:ffff:7d28:2d8c
125.40.45.141 0:0:0:0:0:ffff:7d28:2d8d
125.40.45.142 0:0:0:0:0:ffff:7d28:2d8e
125.40.45.143 0:0:0:0:0:ffff:7d28:2d8f
125.40.45.144 0:0:0:0:0:ffff:7d28:2d90
125.40.45.145 0:0:0:0:0:ffff:7d28:2d91
125.40.45.146 0:0:0:0:0:ffff:7d28:2d92
125.40.45.147 0:0:0:0:0:ffff:7d28:2d93
125.40.45.148 0:0:0:0:0:ffff:7d28:2d94
125.40.45.149 0:0:0:0:0:ffff:7d28:2d95
125.40.45.150 0:0:0:0:0:ffff:7d28:2d96
125.40.45.151 0:0:0:0:0:ffff:7d28:2d97
125.40.45.152 0:0:0:0:0:ffff:7d28:2d98
125.40.45.153 0:0:0:0:0:ffff:7d28:2d99
125.40.45.154 0:0:0:0:0:ffff:7d28:2d9a
125.40.45.155 0:0:0:0:0:ffff:7d28:2d9b
125.40.45.156 0:0:0:0:0:ffff:7d28:2d9c
125.40.45.157 0:0:0:0:0:ffff:7d28:2d9d
125.40.45.158 0:0:0:0:0:ffff:7d28:2d9e
125.40.45.159 0:0:0:0:0:ffff:7d28:2d9f
125.40.45.160 0:0:0:0:0:ffff:7d28:2da0
125.40.45.161 0:0:0:0:0:ffff:7d28:2da1
125.40.45.162 0:0:0:0:0:ffff:7d28:2da2
125.40.45.163 0:0:0:0:0:ffff:7d28:2da3
125.40.45.164 0:0:0:0:0:ffff:7d28:2da4
125.40.45.165 0:0:0:0:0:ffff:7d28:2da5
125.40.45.166 0:0:0:0:0:ffff:7d28:2da6
125.40.45.167 0:0:0:0:0:ffff:7d28:2da7
125.40.45.168 0:0:0:0:0:ffff:7d28:2da8
125.40.45.169 0:0:0:0:0:ffff:7d28:2da9
125.40.45.170 0:0:0:0:0:ffff:7d28:2daa
125.40.45.171 0:0:0:0:0:ffff:7d28:2dab
125.40.45.172 0:0:0:0:0:ffff:7d28:2dac
125.40.45.173 0:0:0:0:0:ffff:7d28:2dad
125.40.45.174 0:0:0:0:0:ffff:7d28:2dae
125.40.45.175 0:0:0:0:0:ffff:7d28:2daf
125.40.45.176 0:0:0:0:0:ffff:7d28:2db0
125.40.45.177 0:0:0:0:0:ffff:7d28:2db1
125.40.45.178 0:0:0:0:0:ffff:7d28:2db2
125.40.45.179 0:0:0:0:0:ffff:7d28:2db3
125.40.45.180 0:0:0:0:0:ffff:7d28:2db4


125.40.45.181 0:0:0:0:0:ffff:7d28:2db5
125.40.45.182 0:0:0:0:0:ffff:7d28:2db6
125.40.45.183 0:0:0:0:0:ffff:7d28:2db7
125.40.45.184 0:0:0:0:0:ffff:7d28:2db8
125.40.45.185 0:0:0:0:0:ffff:7d28:2db9
125.40.45.186 0:0:0:0:0:ffff:7d28:2dba
125.40.45.187 0:0:0:0:0:ffff:7d28:2dbb
125.40.45.188 0:0:0:0:0:ffff:7d28:2dbc
125.40.45.189 0:0:0:0:0:ffff:7d28:2dbd
125.40.45.190 0:0:0:0:0:ffff:7d28:2dbe
125.40.45.191 0:0:0:0:0:ffff:7d28:2dbf
125.40.45.192 0:0:0:0:0:ffff:7d28:2dc0
125.40.45.193 0:0:0:0:0:ffff:7d28:2dc1
125.40.45.194 0:0:0:0:0:ffff:7d28:2dc2
125.40.45.195 0:0:0:0:0:ffff:7d28:2dc3
125.40.45.196 0:0:0:0:0:ffff:7d28:2dc4
125.40.45.197 0:0:0:0:0:ffff:7d28:2dc5
125.40.45.198 0:0:0:0:0:ffff:7d28:2dc6
125.40.45.199 0:0:0:0:0:ffff:7d28:2dc7
125.40.45.200 0:0:0:0:0:ffff:7d28:2dc8
125.40.45.201 0:0:0:0:0:ffff:7d28:2dc9
125.40.45.202 0:0:0:0:0:ffff:7d28:2dca
125.40.45.203 0:0:0:0:0:ffff:7d28:2dcb
125.40.45.204 0:0:0:0:0:ffff:7d28:2dcc
125.40.45.205 0:0:0:0:0:ffff:7d28:2dcd
125.40.45.206 0:0:0:0:0:ffff:7d28:2dce
125.40.45.207 0:0:0:0:0:ffff:7d28:2dcf
125.40.45.208 0:0:0:0:0:ffff:7d28:2dd0
125.40.45.209 0:0:0:0:0:ffff:7d28:2dd1
125.40.45.210 0:0:0:0:0:ffff:7d28:2dd2
125.40.45.211 0:0:0:0:0:ffff:7d28:2dd3
125.40.45.212 0:0:0:0:0:ffff:7d28:2dd4
125.40.45.213 0:0:0:0:0:ffff:7d28:2dd5
125.40.45.214 0:0:0:0:0:ffff:7d28:2dd6
125.40.45.215 0:0:0:0:0:ffff:7d28:2dd7
125.40.45.216 0:0:0:0:0:ffff:7d28:2dd8
125.40.45.217 0:0:0:0:0:ffff:7d28:2dd9
125.40.45.218 0:0:0:0:0:ffff:7d28:2dda
125.40.45.219 0:0:0:0:0:ffff:7d28:2ddb
125.40.45.220 0:0:0:0:0:ffff:7d28:2ddc
125.40.45.221 0:0:0:0:0:ffff:7d28:2ddd
125.40.45.222 0:0:0:0:0:ffff:7d28:2dde
125.40.45.223 0:0:0:0:0:ffff:7d28:2ddf
125.40.45.224 0:0:0:0:0:ffff:7d28:2de0
125.40.45.225 0:0:0:0:0:ffff:7d28:2de1
125.40.45.226 0:0:0:0:0:ffff:7d28:2de2
125.40.45.227 0:0:0:0:0:ffff:7d28:2de3
125.40.45.228 0:0:0:0:0:ffff:7d28:2de4
125.40.45.229 0:0:0:0:0:ffff:7d28:2de5
125.40.45.230 0:0:0:0:0:ffff:7d28:2de6
125.40.45.231 0:0:0:0:0:ffff:7d28:2de7
125.40.45.232 0:0:0:0:0:ffff:7d28:2de8
125.40.45.233 0:0:0:0:0:ffff:7d28:2de9
125.40.45.234 0:0:0:0:0:ffff:7d28:2dea
125.40.45.235 0:0:0:0:0:ffff:7d28:2deb
125.40.45.236 0:0:0:0:0:ffff:7d28:2dec
125.40.45.237 0:0:0:0:0:ffff:7d28:2ded
125.40.45.238 0:0:0:0:0:ffff:7d28:2dee
125.40.45.239 0:0:0:0:0:ffff:7d28:2def
125.40.45.240 0:0:0:0:0:ffff:7d28:2df0
125.40.45.241 0:0:0:0:0:ffff:7d28:2df1
125.40.45.242 0:0:0:0:0:ffff:7d28:2df2
125.40.45.243 0:0:0:0:0:ffff:7d28:2df3
125.40.45.244 0:0:0:0:0:ffff:7d28:2df4
125.40.45.245 0:0:0:0:0:ffff:7d28:2df5
125.40.45.246 0:0:0:0:0:ffff:7d28:2df6
125.40.45.247 0:0:0:0:0:ffff:7d28:2df7
125.40.45.248 0:0:0:0:0:ffff:7d28:2df8
125.40.45.249 0:0:0:0:0:ffff:7d28:2df9
125.40.45.250 0:0:0:0:0:ffff:7d28:2dfa
125.40.45.251 0:0:0:0:0:ffff:7d28:2dfb
125.40.45.252 0:0:0:0:0:ffff:7d28:2dfc
125.40.45.253 0:0:0:0:0:ffff:7d28:2dfd
125.40.45.254 0:0:0:0:0:ffff:7d28:2dfe
125.40.45.255 0:0:0:0:0:ffff:7d28:2dff


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.