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
203.153.237.1 0:0:0:0:0:ffff:cb99:ed01
203.153.237.2 0:0:0:0:0:ffff:cb99:ed02
203.153.237.3 0:0:0:0:0:ffff:cb99:ed03
203.153.237.4 0:0:0:0:0:ffff:cb99:ed04
203.153.237.5 0:0:0:0:0:ffff:cb99:ed05
203.153.237.6 0:0:0:0:0:ffff:cb99:ed06
203.153.237.7 0:0:0:0:0:ffff:cb99:ed07
203.153.237.8 0:0:0:0:0:ffff:cb99:ed08
203.153.237.9 0:0:0:0:0:ffff:cb99:ed09
203.153.237.10 0:0:0:0:0:ffff:cb99:ed0a
203.153.237.11 0:0:0:0:0:ffff:cb99:ed0b
203.153.237.12 0:0:0:0:0:ffff:cb99:ed0c
203.153.237.13 0:0:0:0:0:ffff:cb99:ed0d
203.153.237.14 0:0:0:0:0:ffff:cb99:ed0e
203.153.237.15 0:0:0:0:0:ffff:cb99:ed0f
203.153.237.16 0:0:0:0:0:ffff:cb99:ed10
203.153.237.17 0:0:0:0:0:ffff:cb99:ed11
203.153.237.18 0:0:0:0:0:ffff:cb99:ed12
203.153.237.19 0:0:0:0:0:ffff:cb99:ed13
203.153.237.20 0:0:0:0:0:ffff:cb99:ed14
203.153.237.21 0:0:0:0:0:ffff:cb99:ed15
203.153.237.22 0:0:0:0:0:ffff:cb99:ed16
203.153.237.23 0:0:0:0:0:ffff:cb99:ed17
203.153.237.24 0:0:0:0:0:ffff:cb99:ed18
203.153.237.25 0:0:0:0:0:ffff:cb99:ed19
203.153.237.26 0:0:0:0:0:ffff:cb99:ed1a
203.153.237.27 0:0:0:0:0:ffff:cb99:ed1b
203.153.237.28 0:0:0:0:0:ffff:cb99:ed1c
203.153.237.29 0:0:0:0:0:ffff:cb99:ed1d
203.153.237.30 0:0:0:0:0:ffff:cb99:ed1e
203.153.237.31 0:0:0:0:0:ffff:cb99:ed1f
203.153.237.32 0:0:0:0:0:ffff:cb99:ed20
203.153.237.33 0:0:0:0:0:ffff:cb99:ed21
203.153.237.34 0:0:0:0:0:ffff:cb99:ed22
203.153.237.35 0:0:0:0:0:ffff:cb99:ed23
203.153.237.36 0:0:0:0:0:ffff:cb99:ed24
203.153.237.37 0:0:0:0:0:ffff:cb99:ed25
203.153.237.38 0:0:0:0:0:ffff:cb99:ed26
203.153.237.39 0:0:0:0:0:ffff:cb99:ed27
203.153.237.40 0:0:0:0:0:ffff:cb99:ed28
203.153.237.41 0:0:0:0:0:ffff:cb99:ed29
203.153.237.42 0:0:0:0:0:ffff:cb99:ed2a
203.153.237.43 0:0:0:0:0:ffff:cb99:ed2b
203.153.237.44 0:0:0:0:0:ffff:cb99:ed2c
203.153.237.45 0:0:0:0:0:ffff:cb99:ed2d
203.153.237.46 0:0:0:0:0:ffff:cb99:ed2e
203.153.237.47 0:0:0:0:0:ffff:cb99:ed2f
203.153.237.48 0:0:0:0:0:ffff:cb99:ed30
203.153.237.49 0:0:0:0:0:ffff:cb99:ed31
203.153.237.50 0:0:0:0:0:ffff:cb99:ed32
203.153.237.51 0:0:0:0:0:ffff:cb99:ed33
203.153.237.52 0:0:0:0:0:ffff:cb99:ed34
203.153.237.53 0:0:0:0:0:ffff:cb99:ed35
203.153.237.54 0:0:0:0:0:ffff:cb99:ed36
203.153.237.55 0:0:0:0:0:ffff:cb99:ed37
203.153.237.56 0:0:0:0:0:ffff:cb99:ed38
203.153.237.57 0:0:0:0:0:ffff:cb99:ed39
203.153.237.58 0:0:0:0:0:ffff:cb99:ed3a
203.153.237.59 0:0:0:0:0:ffff:cb99:ed3b
203.153.237.60 0:0:0:0:0:ffff:cb99:ed3c


203.153.237.61 0:0:0:0:0:ffff:cb99:ed3d
203.153.237.62 0:0:0:0:0:ffff:cb99:ed3e
203.153.237.63 0:0:0:0:0:ffff:cb99:ed3f
203.153.237.64 0:0:0:0:0:ffff:cb99:ed40
203.153.237.65 0:0:0:0:0:ffff:cb99:ed41
203.153.237.66 0:0:0:0:0:ffff:cb99:ed42
203.153.237.67 0:0:0:0:0:ffff:cb99:ed43
203.153.237.68 0:0:0:0:0:ffff:cb99:ed44
203.153.237.69 0:0:0:0:0:ffff:cb99:ed45
203.153.237.70 0:0:0:0:0:ffff:cb99:ed46
203.153.237.71 0:0:0:0:0:ffff:cb99:ed47
203.153.237.72 0:0:0:0:0:ffff:cb99:ed48
203.153.237.73 0:0:0:0:0:ffff:cb99:ed49
203.153.237.74 0:0:0:0:0:ffff:cb99:ed4a
203.153.237.75 0:0:0:0:0:ffff:cb99:ed4b
203.153.237.76 0:0:0:0:0:ffff:cb99:ed4c
203.153.237.77 0:0:0:0:0:ffff:cb99:ed4d
203.153.237.78 0:0:0:0:0:ffff:cb99:ed4e
203.153.237.79 0:0:0:0:0:ffff:cb99:ed4f
203.153.237.80 0:0:0:0:0:ffff:cb99:ed50
203.153.237.81 0:0:0:0:0:ffff:cb99:ed51
203.153.237.82 0:0:0:0:0:ffff:cb99:ed52
203.153.237.83 0:0:0:0:0:ffff:cb99:ed53
203.153.237.84 0:0:0:0:0:ffff:cb99:ed54
203.153.237.85 0:0:0:0:0:ffff:cb99:ed55
203.153.237.86 0:0:0:0:0:ffff:cb99:ed56
203.153.237.87 0:0:0:0:0:ffff:cb99:ed57
203.153.237.88 0:0:0:0:0:ffff:cb99:ed58
203.153.237.89 0:0:0:0:0:ffff:cb99:ed59
203.153.237.90 0:0:0:0:0:ffff:cb99:ed5a
203.153.237.91 0:0:0:0:0:ffff:cb99:ed5b
203.153.237.92 0:0:0:0:0:ffff:cb99:ed5c
203.153.237.93 0:0:0:0:0:ffff:cb99:ed5d
203.153.237.94 0:0:0:0:0:ffff:cb99:ed5e
203.153.237.95 0:0:0:0:0:ffff:cb99:ed5f
203.153.237.96 0:0:0:0:0:ffff:cb99:ed60
203.153.237.97 0:0:0:0:0:ffff:cb99:ed61
203.153.237.98 0:0:0:0:0:ffff:cb99:ed62
203.153.237.99 0:0:0:0:0:ffff:cb99:ed63
203.153.237.100 0:0:0:0:0:ffff:cb99:ed64
203.153.237.101 0:0:0:0:0:ffff:cb99:ed65
203.153.237.102 0:0:0:0:0:ffff:cb99:ed66
203.153.237.103 0:0:0:0:0:ffff:cb99:ed67
203.153.237.104 0:0:0:0:0:ffff:cb99:ed68
203.153.237.105 0:0:0:0:0:ffff:cb99:ed69
203.153.237.106 0:0:0:0:0:ffff:cb99:ed6a
203.153.237.107 0:0:0:0:0:ffff:cb99:ed6b
203.153.237.108 0:0:0:0:0:ffff:cb99:ed6c
203.153.237.109 0:0:0:0:0:ffff:cb99:ed6d
203.153.237.110 0:0:0:0:0:ffff:cb99:ed6e
203.153.237.111 0:0:0:0:0:ffff:cb99:ed6f
203.153.237.112 0:0:0:0:0:ffff:cb99:ed70
203.153.237.113 0:0:0:0:0:ffff:cb99:ed71
203.153.237.114 0:0:0:0:0:ffff:cb99:ed72
203.153.237.115 0:0:0:0:0:ffff:cb99:ed73
203.153.237.116 0:0:0:0:0:ffff:cb99:ed74
203.153.237.117 0:0:0:0:0:ffff:cb99:ed75
203.153.237.118 0:0:0:0:0:ffff:cb99:ed76
203.153.237.119 0:0:0:0:0:ffff:cb99:ed77
203.153.237.120 0:0:0:0:0:ffff:cb99:ed78


203.153.237.121 0:0:0:0:0:ffff:cb99:ed79
203.153.237.122 0:0:0:0:0:ffff:cb99:ed7a
203.153.237.123 0:0:0:0:0:ffff:cb99:ed7b
203.153.237.124 0:0:0:0:0:ffff:cb99:ed7c
203.153.237.125 0:0:0:0:0:ffff:cb99:ed7d
203.153.237.126 0:0:0:0:0:ffff:cb99:ed7e
203.153.237.127 0:0:0:0:0:ffff:cb99:ed7f
203.153.237.128 0:0:0:0:0:ffff:cb99:ed80
203.153.237.129 0:0:0:0:0:ffff:cb99:ed81
203.153.237.130 0:0:0:0:0:ffff:cb99:ed82
203.153.237.131 0:0:0:0:0:ffff:cb99:ed83
203.153.237.132 0:0:0:0:0:ffff:cb99:ed84
203.153.237.133 0:0:0:0:0:ffff:cb99:ed85
203.153.237.134 0:0:0:0:0:ffff:cb99:ed86
203.153.237.135 0:0:0:0:0:ffff:cb99:ed87
203.153.237.136 0:0:0:0:0:ffff:cb99:ed88
203.153.237.137 0:0:0:0:0:ffff:cb99:ed89
203.153.237.138 0:0:0:0:0:ffff:cb99:ed8a
203.153.237.139 0:0:0:0:0:ffff:cb99:ed8b
203.153.237.140 0:0:0:0:0:ffff:cb99:ed8c
203.153.237.141 0:0:0:0:0:ffff:cb99:ed8d
203.153.237.142 0:0:0:0:0:ffff:cb99:ed8e
203.153.237.143 0:0:0:0:0:ffff:cb99:ed8f
203.153.237.144 0:0:0:0:0:ffff:cb99:ed90
203.153.237.145 0:0:0:0:0:ffff:cb99:ed91
203.153.237.146 0:0:0:0:0:ffff:cb99:ed92
203.153.237.147 0:0:0:0:0:ffff:cb99:ed93
203.153.237.148 0:0:0:0:0:ffff:cb99:ed94
203.153.237.149 0:0:0:0:0:ffff:cb99:ed95
203.153.237.150 0:0:0:0:0:ffff:cb99:ed96
203.153.237.151 0:0:0:0:0:ffff:cb99:ed97
203.153.237.152 0:0:0:0:0:ffff:cb99:ed98
203.153.237.153 0:0:0:0:0:ffff:cb99:ed99
203.153.237.154 0:0:0:0:0:ffff:cb99:ed9a
203.153.237.155 0:0:0:0:0:ffff:cb99:ed9b
203.153.237.156 0:0:0:0:0:ffff:cb99:ed9c
203.153.237.157 0:0:0:0:0:ffff:cb99:ed9d
203.153.237.158 0:0:0:0:0:ffff:cb99:ed9e
203.153.237.159 0:0:0:0:0:ffff:cb99:ed9f
203.153.237.160 0:0:0:0:0:ffff:cb99:eda0
203.153.237.161 0:0:0:0:0:ffff:cb99:eda1
203.153.237.162 0:0:0:0:0:ffff:cb99:eda2
203.153.237.163 0:0:0:0:0:ffff:cb99:eda3
203.153.237.164 0:0:0:0:0:ffff:cb99:eda4
203.153.237.165 0:0:0:0:0:ffff:cb99:eda5
203.153.237.166 0:0:0:0:0:ffff:cb99:eda6
203.153.237.167 0:0:0:0:0:ffff:cb99:eda7
203.153.237.168 0:0:0:0:0:ffff:cb99:eda8
203.153.237.169 0:0:0:0:0:ffff:cb99:eda9
203.153.237.170 0:0:0:0:0:ffff:cb99:edaa
203.153.237.171 0:0:0:0:0:ffff:cb99:edab
203.153.237.172 0:0:0:0:0:ffff:cb99:edac
203.153.237.173 0:0:0:0:0:ffff:cb99:edad
203.153.237.174 0:0:0:0:0:ffff:cb99:edae
203.153.237.175 0:0:0:0:0:ffff:cb99:edaf
203.153.237.176 0:0:0:0:0:ffff:cb99:edb0
203.153.237.177 0:0:0:0:0:ffff:cb99:edb1
203.153.237.178 0:0:0:0:0:ffff:cb99:edb2
203.153.237.179 0:0:0:0:0:ffff:cb99:edb3
203.153.237.180 0:0:0:0:0:ffff:cb99:edb4


203.153.237.181 0:0:0:0:0:ffff:cb99:edb5
203.153.237.182 0:0:0:0:0:ffff:cb99:edb6
203.153.237.183 0:0:0:0:0:ffff:cb99:edb7
203.153.237.184 0:0:0:0:0:ffff:cb99:edb8
203.153.237.185 0:0:0:0:0:ffff:cb99:edb9
203.153.237.186 0:0:0:0:0:ffff:cb99:edba
203.153.237.187 0:0:0:0:0:ffff:cb99:edbb
203.153.237.188 0:0:0:0:0:ffff:cb99:edbc
203.153.237.189 0:0:0:0:0:ffff:cb99:edbd
203.153.237.190 0:0:0:0:0:ffff:cb99:edbe
203.153.237.191 0:0:0:0:0:ffff:cb99:edbf
203.153.237.192 0:0:0:0:0:ffff:cb99:edc0
203.153.237.193 0:0:0:0:0:ffff:cb99:edc1
203.153.237.194 0:0:0:0:0:ffff:cb99:edc2
203.153.237.195 0:0:0:0:0:ffff:cb99:edc3
203.153.237.196 0:0:0:0:0:ffff:cb99:edc4
203.153.237.197 0:0:0:0:0:ffff:cb99:edc5
203.153.237.198 0:0:0:0:0:ffff:cb99:edc6
203.153.237.199 0:0:0:0:0:ffff:cb99:edc7
203.153.237.200 0:0:0:0:0:ffff:cb99:edc8
203.153.237.201 0:0:0:0:0:ffff:cb99:edc9
203.153.237.202 0:0:0:0:0:ffff:cb99:edca
203.153.237.203 0:0:0:0:0:ffff:cb99:edcb
203.153.237.204 0:0:0:0:0:ffff:cb99:edcc
203.153.237.205 0:0:0:0:0:ffff:cb99:edcd
203.153.237.206 0:0:0:0:0:ffff:cb99:edce
203.153.237.207 0:0:0:0:0:ffff:cb99:edcf
203.153.237.208 0:0:0:0:0:ffff:cb99:edd0
203.153.237.209 0:0:0:0:0:ffff:cb99:edd1
203.153.237.210 0:0:0:0:0:ffff:cb99:edd2
203.153.237.211 0:0:0:0:0:ffff:cb99:edd3
203.153.237.212 0:0:0:0:0:ffff:cb99:edd4
203.153.237.213 0:0:0:0:0:ffff:cb99:edd5
203.153.237.214 0:0:0:0:0:ffff:cb99:edd6
203.153.237.215 0:0:0:0:0:ffff:cb99:edd7
203.153.237.216 0:0:0:0:0:ffff:cb99:edd8
203.153.237.217 0:0:0:0:0:ffff:cb99:edd9
203.153.237.218 0:0:0:0:0:ffff:cb99:edda
203.153.237.219 0:0:0:0:0:ffff:cb99:eddb
203.153.237.220 0:0:0:0:0:ffff:cb99:eddc
203.153.237.221 0:0:0:0:0:ffff:cb99:eddd
203.153.237.222 0:0:0:0:0:ffff:cb99:edde
203.153.237.223 0:0:0:0:0:ffff:cb99:eddf
203.153.237.224 0:0:0:0:0:ffff:cb99:ede0
203.153.237.225 0:0:0:0:0:ffff:cb99:ede1
203.153.237.226 0:0:0:0:0:ffff:cb99:ede2
203.153.237.227 0:0:0:0:0:ffff:cb99:ede3
203.153.237.228 0:0:0:0:0:ffff:cb99:ede4
203.153.237.229 0:0:0:0:0:ffff:cb99:ede5
203.153.237.230 0:0:0:0:0:ffff:cb99:ede6
203.153.237.231 0:0:0:0:0:ffff:cb99:ede7
203.153.237.232 0:0:0:0:0:ffff:cb99:ede8
203.153.237.233 0:0:0:0:0:ffff:cb99:ede9
203.153.237.234 0:0:0:0:0:ffff:cb99:edea
203.153.237.235 0:0:0:0:0:ffff:cb99:edeb
203.153.237.236 0:0:0:0:0:ffff:cb99:edec
203.153.237.237 0:0:0:0:0:ffff:cb99:eded
203.153.237.238 0:0:0:0:0:ffff:cb99:edee
203.153.237.239 0:0:0:0:0:ffff:cb99:edef
203.153.237.240 0:0:0:0:0:ffff:cb99:edf0
203.153.237.241 0:0:0:0:0:ffff:cb99:edf1
203.153.237.242 0:0:0:0:0:ffff:cb99:edf2
203.153.237.243 0:0:0:0:0:ffff:cb99:edf3
203.153.237.244 0:0:0:0:0:ffff:cb99:edf4
203.153.237.245 0:0:0:0:0:ffff:cb99:edf5
203.153.237.246 0:0:0:0:0:ffff:cb99:edf6
203.153.237.247 0:0:0:0:0:ffff:cb99:edf7
203.153.237.248 0:0:0:0:0:ffff:cb99:edf8
203.153.237.249 0:0:0:0:0:ffff:cb99:edf9
203.153.237.250 0:0:0:0:0:ffff:cb99:edfa
203.153.237.251 0:0:0:0:0:ffff:cb99:edfb
203.153.237.252 0:0:0:0:0:ffff:cb99:edfc
203.153.237.253 0:0:0:0:0:ffff:cb99:edfd
203.153.237.254 0:0:0:0:0:ffff:cb99:edfe
203.153.237.255 0:0:0:0:0:ffff:cb99:edff


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.