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
21.15.113.1 0:0:0:0:0:ffff:150f:7101
21.15.113.2 0:0:0:0:0:ffff:150f:7102
21.15.113.3 0:0:0:0:0:ffff:150f:7103
21.15.113.4 0:0:0:0:0:ffff:150f:7104
21.15.113.5 0:0:0:0:0:ffff:150f:7105
21.15.113.6 0:0:0:0:0:ffff:150f:7106
21.15.113.7 0:0:0:0:0:ffff:150f:7107
21.15.113.8 0:0:0:0:0:ffff:150f:7108
21.15.113.9 0:0:0:0:0:ffff:150f:7109
21.15.113.10 0:0:0:0:0:ffff:150f:710a
21.15.113.11 0:0:0:0:0:ffff:150f:710b
21.15.113.12 0:0:0:0:0:ffff:150f:710c
21.15.113.13 0:0:0:0:0:ffff:150f:710d
21.15.113.14 0:0:0:0:0:ffff:150f:710e
21.15.113.15 0:0:0:0:0:ffff:150f:710f
21.15.113.16 0:0:0:0:0:ffff:150f:7110
21.15.113.17 0:0:0:0:0:ffff:150f:7111
21.15.113.18 0:0:0:0:0:ffff:150f:7112
21.15.113.19 0:0:0:0:0:ffff:150f:7113
21.15.113.20 0:0:0:0:0:ffff:150f:7114
21.15.113.21 0:0:0:0:0:ffff:150f:7115
21.15.113.22 0:0:0:0:0:ffff:150f:7116
21.15.113.23 0:0:0:0:0:ffff:150f:7117
21.15.113.24 0:0:0:0:0:ffff:150f:7118
21.15.113.25 0:0:0:0:0:ffff:150f:7119
21.15.113.26 0:0:0:0:0:ffff:150f:711a
21.15.113.27 0:0:0:0:0:ffff:150f:711b
21.15.113.28 0:0:0:0:0:ffff:150f:711c
21.15.113.29 0:0:0:0:0:ffff:150f:711d
21.15.113.30 0:0:0:0:0:ffff:150f:711e
21.15.113.31 0:0:0:0:0:ffff:150f:711f
21.15.113.32 0:0:0:0:0:ffff:150f:7120
21.15.113.33 0:0:0:0:0:ffff:150f:7121
21.15.113.34 0:0:0:0:0:ffff:150f:7122
21.15.113.35 0:0:0:0:0:ffff:150f:7123
21.15.113.36 0:0:0:0:0:ffff:150f:7124
21.15.113.37 0:0:0:0:0:ffff:150f:7125
21.15.113.38 0:0:0:0:0:ffff:150f:7126
21.15.113.39 0:0:0:0:0:ffff:150f:7127
21.15.113.40 0:0:0:0:0:ffff:150f:7128
21.15.113.41 0:0:0:0:0:ffff:150f:7129
21.15.113.42 0:0:0:0:0:ffff:150f:712a
21.15.113.43 0:0:0:0:0:ffff:150f:712b
21.15.113.44 0:0:0:0:0:ffff:150f:712c
21.15.113.45 0:0:0:0:0:ffff:150f:712d
21.15.113.46 0:0:0:0:0:ffff:150f:712e
21.15.113.47 0:0:0:0:0:ffff:150f:712f
21.15.113.48 0:0:0:0:0:ffff:150f:7130
21.15.113.49 0:0:0:0:0:ffff:150f:7131
21.15.113.50 0:0:0:0:0:ffff:150f:7132
21.15.113.51 0:0:0:0:0:ffff:150f:7133
21.15.113.52 0:0:0:0:0:ffff:150f:7134
21.15.113.53 0:0:0:0:0:ffff:150f:7135
21.15.113.54 0:0:0:0:0:ffff:150f:7136
21.15.113.55 0:0:0:0:0:ffff:150f:7137
21.15.113.56 0:0:0:0:0:ffff:150f:7138
21.15.113.57 0:0:0:0:0:ffff:150f:7139
21.15.113.58 0:0:0:0:0:ffff:150f:713a
21.15.113.59 0:0:0:0:0:ffff:150f:713b
21.15.113.60 0:0:0:0:0:ffff:150f:713c


21.15.113.61 0:0:0:0:0:ffff:150f:713d
21.15.113.62 0:0:0:0:0:ffff:150f:713e
21.15.113.63 0:0:0:0:0:ffff:150f:713f
21.15.113.64 0:0:0:0:0:ffff:150f:7140
21.15.113.65 0:0:0:0:0:ffff:150f:7141
21.15.113.66 0:0:0:0:0:ffff:150f:7142
21.15.113.67 0:0:0:0:0:ffff:150f:7143
21.15.113.68 0:0:0:0:0:ffff:150f:7144
21.15.113.69 0:0:0:0:0:ffff:150f:7145
21.15.113.70 0:0:0:0:0:ffff:150f:7146
21.15.113.71 0:0:0:0:0:ffff:150f:7147
21.15.113.72 0:0:0:0:0:ffff:150f:7148
21.15.113.73 0:0:0:0:0:ffff:150f:7149
21.15.113.74 0:0:0:0:0:ffff:150f:714a
21.15.113.75 0:0:0:0:0:ffff:150f:714b
21.15.113.76 0:0:0:0:0:ffff:150f:714c
21.15.113.77 0:0:0:0:0:ffff:150f:714d
21.15.113.78 0:0:0:0:0:ffff:150f:714e
21.15.113.79 0:0:0:0:0:ffff:150f:714f
21.15.113.80 0:0:0:0:0:ffff:150f:7150
21.15.113.81 0:0:0:0:0:ffff:150f:7151
21.15.113.82 0:0:0:0:0:ffff:150f:7152
21.15.113.83 0:0:0:0:0:ffff:150f:7153
21.15.113.84 0:0:0:0:0:ffff:150f:7154
21.15.113.85 0:0:0:0:0:ffff:150f:7155
21.15.113.86 0:0:0:0:0:ffff:150f:7156
21.15.113.87 0:0:0:0:0:ffff:150f:7157
21.15.113.88 0:0:0:0:0:ffff:150f:7158
21.15.113.89 0:0:0:0:0:ffff:150f:7159
21.15.113.90 0:0:0:0:0:ffff:150f:715a
21.15.113.91 0:0:0:0:0:ffff:150f:715b
21.15.113.92 0:0:0:0:0:ffff:150f:715c
21.15.113.93 0:0:0:0:0:ffff:150f:715d
21.15.113.94 0:0:0:0:0:ffff:150f:715e
21.15.113.95 0:0:0:0:0:ffff:150f:715f
21.15.113.96 0:0:0:0:0:ffff:150f:7160
21.15.113.97 0:0:0:0:0:ffff:150f:7161
21.15.113.98 0:0:0:0:0:ffff:150f:7162
21.15.113.99 0:0:0:0:0:ffff:150f:7163
21.15.113.100 0:0:0:0:0:ffff:150f:7164
21.15.113.101 0:0:0:0:0:ffff:150f:7165
21.15.113.102 0:0:0:0:0:ffff:150f:7166
21.15.113.103 0:0:0:0:0:ffff:150f:7167
21.15.113.104 0:0:0:0:0:ffff:150f:7168
21.15.113.105 0:0:0:0:0:ffff:150f:7169
21.15.113.106 0:0:0:0:0:ffff:150f:716a
21.15.113.107 0:0:0:0:0:ffff:150f:716b
21.15.113.108 0:0:0:0:0:ffff:150f:716c
21.15.113.109 0:0:0:0:0:ffff:150f:716d
21.15.113.110 0:0:0:0:0:ffff:150f:716e
21.15.113.111 0:0:0:0:0:ffff:150f:716f
21.15.113.112 0:0:0:0:0:ffff:150f:7170
21.15.113.113 0:0:0:0:0:ffff:150f:7171
21.15.113.114 0:0:0:0:0:ffff:150f:7172
21.15.113.115 0:0:0:0:0:ffff:150f:7173
21.15.113.116 0:0:0:0:0:ffff:150f:7174
21.15.113.117 0:0:0:0:0:ffff:150f:7175
21.15.113.118 0:0:0:0:0:ffff:150f:7176
21.15.113.119 0:0:0:0:0:ffff:150f:7177
21.15.113.120 0:0:0:0:0:ffff:150f:7178


21.15.113.121 0:0:0:0:0:ffff:150f:7179
21.15.113.122 0:0:0:0:0:ffff:150f:717a
21.15.113.123 0:0:0:0:0:ffff:150f:717b
21.15.113.124 0:0:0:0:0:ffff:150f:717c
21.15.113.125 0:0:0:0:0:ffff:150f:717d
21.15.113.126 0:0:0:0:0:ffff:150f:717e
21.15.113.127 0:0:0:0:0:ffff:150f:717f
21.15.113.128 0:0:0:0:0:ffff:150f:7180
21.15.113.129 0:0:0:0:0:ffff:150f:7181
21.15.113.130 0:0:0:0:0:ffff:150f:7182
21.15.113.131 0:0:0:0:0:ffff:150f:7183
21.15.113.132 0:0:0:0:0:ffff:150f:7184
21.15.113.133 0:0:0:0:0:ffff:150f:7185
21.15.113.134 0:0:0:0:0:ffff:150f:7186
21.15.113.135 0:0:0:0:0:ffff:150f:7187
21.15.113.136 0:0:0:0:0:ffff:150f:7188
21.15.113.137 0:0:0:0:0:ffff:150f:7189
21.15.113.138 0:0:0:0:0:ffff:150f:718a
21.15.113.139 0:0:0:0:0:ffff:150f:718b
21.15.113.140 0:0:0:0:0:ffff:150f:718c
21.15.113.141 0:0:0:0:0:ffff:150f:718d
21.15.113.142 0:0:0:0:0:ffff:150f:718e
21.15.113.143 0:0:0:0:0:ffff:150f:718f
21.15.113.144 0:0:0:0:0:ffff:150f:7190
21.15.113.145 0:0:0:0:0:ffff:150f:7191
21.15.113.146 0:0:0:0:0:ffff:150f:7192
21.15.113.147 0:0:0:0:0:ffff:150f:7193
21.15.113.148 0:0:0:0:0:ffff:150f:7194
21.15.113.149 0:0:0:0:0:ffff:150f:7195
21.15.113.150 0:0:0:0:0:ffff:150f:7196
21.15.113.151 0:0:0:0:0:ffff:150f:7197
21.15.113.152 0:0:0:0:0:ffff:150f:7198
21.15.113.153 0:0:0:0:0:ffff:150f:7199
21.15.113.154 0:0:0:0:0:ffff:150f:719a
21.15.113.155 0:0:0:0:0:ffff:150f:719b
21.15.113.156 0:0:0:0:0:ffff:150f:719c
21.15.113.157 0:0:0:0:0:ffff:150f:719d
21.15.113.158 0:0:0:0:0:ffff:150f:719e
21.15.113.159 0:0:0:0:0:ffff:150f:719f
21.15.113.160 0:0:0:0:0:ffff:150f:71a0
21.15.113.161 0:0:0:0:0:ffff:150f:71a1
21.15.113.162 0:0:0:0:0:ffff:150f:71a2
21.15.113.163 0:0:0:0:0:ffff:150f:71a3
21.15.113.164 0:0:0:0:0:ffff:150f:71a4
21.15.113.165 0:0:0:0:0:ffff:150f:71a5
21.15.113.166 0:0:0:0:0:ffff:150f:71a6
21.15.113.167 0:0:0:0:0:ffff:150f:71a7
21.15.113.168 0:0:0:0:0:ffff:150f:71a8
21.15.113.169 0:0:0:0:0:ffff:150f:71a9
21.15.113.170 0:0:0:0:0:ffff:150f:71aa
21.15.113.171 0:0:0:0:0:ffff:150f:71ab
21.15.113.172 0:0:0:0:0:ffff:150f:71ac
21.15.113.173 0:0:0:0:0:ffff:150f:71ad
21.15.113.174 0:0:0:0:0:ffff:150f:71ae
21.15.113.175 0:0:0:0:0:ffff:150f:71af
21.15.113.176 0:0:0:0:0:ffff:150f:71b0
21.15.113.177 0:0:0:0:0:ffff:150f:71b1
21.15.113.178 0:0:0:0:0:ffff:150f:71b2
21.15.113.179 0:0:0:0:0:ffff:150f:71b3
21.15.113.180 0:0:0:0:0:ffff:150f:71b4


21.15.113.181 0:0:0:0:0:ffff:150f:71b5
21.15.113.182 0:0:0:0:0:ffff:150f:71b6
21.15.113.183 0:0:0:0:0:ffff:150f:71b7
21.15.113.184 0:0:0:0:0:ffff:150f:71b8
21.15.113.185 0:0:0:0:0:ffff:150f:71b9
21.15.113.186 0:0:0:0:0:ffff:150f:71ba
21.15.113.187 0:0:0:0:0:ffff:150f:71bb
21.15.113.188 0:0:0:0:0:ffff:150f:71bc
21.15.113.189 0:0:0:0:0:ffff:150f:71bd
21.15.113.190 0:0:0:0:0:ffff:150f:71be
21.15.113.191 0:0:0:0:0:ffff:150f:71bf
21.15.113.192 0:0:0:0:0:ffff:150f:71c0
21.15.113.193 0:0:0:0:0:ffff:150f:71c1
21.15.113.194 0:0:0:0:0:ffff:150f:71c2
21.15.113.195 0:0:0:0:0:ffff:150f:71c3
21.15.113.196 0:0:0:0:0:ffff:150f:71c4
21.15.113.197 0:0:0:0:0:ffff:150f:71c5
21.15.113.198 0:0:0:0:0:ffff:150f:71c6
21.15.113.199 0:0:0:0:0:ffff:150f:71c7
21.15.113.200 0:0:0:0:0:ffff:150f:71c8
21.15.113.201 0:0:0:0:0:ffff:150f:71c9
21.15.113.202 0:0:0:0:0:ffff:150f:71ca
21.15.113.203 0:0:0:0:0:ffff:150f:71cb
21.15.113.204 0:0:0:0:0:ffff:150f:71cc
21.15.113.205 0:0:0:0:0:ffff:150f:71cd
21.15.113.206 0:0:0:0:0:ffff:150f:71ce
21.15.113.207 0:0:0:0:0:ffff:150f:71cf
21.15.113.208 0:0:0:0:0:ffff:150f:71d0
21.15.113.209 0:0:0:0:0:ffff:150f:71d1
21.15.113.210 0:0:0:0:0:ffff:150f:71d2
21.15.113.211 0:0:0:0:0:ffff:150f:71d3
21.15.113.212 0:0:0:0:0:ffff:150f:71d4
21.15.113.213 0:0:0:0:0:ffff:150f:71d5
21.15.113.214 0:0:0:0:0:ffff:150f:71d6
21.15.113.215 0:0:0:0:0:ffff:150f:71d7
21.15.113.216 0:0:0:0:0:ffff:150f:71d8
21.15.113.217 0:0:0:0:0:ffff:150f:71d9
21.15.113.218 0:0:0:0:0:ffff:150f:71da
21.15.113.219 0:0:0:0:0:ffff:150f:71db
21.15.113.220 0:0:0:0:0:ffff:150f:71dc
21.15.113.221 0:0:0:0:0:ffff:150f:71dd
21.15.113.222 0:0:0:0:0:ffff:150f:71de
21.15.113.223 0:0:0:0:0:ffff:150f:71df
21.15.113.224 0:0:0:0:0:ffff:150f:71e0
21.15.113.225 0:0:0:0:0:ffff:150f:71e1
21.15.113.226 0:0:0:0:0:ffff:150f:71e2
21.15.113.227 0:0:0:0:0:ffff:150f:71e3
21.15.113.228 0:0:0:0:0:ffff:150f:71e4
21.15.113.229 0:0:0:0:0:ffff:150f:71e5
21.15.113.230 0:0:0:0:0:ffff:150f:71e6
21.15.113.231 0:0:0:0:0:ffff:150f:71e7
21.15.113.232 0:0:0:0:0:ffff:150f:71e8
21.15.113.233 0:0:0:0:0:ffff:150f:71e9
21.15.113.234 0:0:0:0:0:ffff:150f:71ea
21.15.113.235 0:0:0:0:0:ffff:150f:71eb
21.15.113.236 0:0:0:0:0:ffff:150f:71ec
21.15.113.237 0:0:0:0:0:ffff:150f:71ed
21.15.113.238 0:0:0:0:0:ffff:150f:71ee
21.15.113.239 0:0:0:0:0:ffff:150f:71ef
21.15.113.240 0:0:0:0:0:ffff:150f:71f0
21.15.113.241 0:0:0:0:0:ffff:150f:71f1
21.15.113.242 0:0:0:0:0:ffff:150f:71f2
21.15.113.243 0:0:0:0:0:ffff:150f:71f3
21.15.113.244 0:0:0:0:0:ffff:150f:71f4
21.15.113.245 0:0:0:0:0:ffff:150f:71f5
21.15.113.246 0:0:0:0:0:ffff:150f:71f6
21.15.113.247 0:0:0:0:0:ffff:150f:71f7
21.15.113.248 0:0:0:0:0:ffff:150f:71f8
21.15.113.249 0:0:0:0:0:ffff:150f:71f9
21.15.113.250 0:0:0:0:0:ffff:150f:71fa
21.15.113.251 0:0:0:0:0:ffff:150f:71fb
21.15.113.252 0:0:0:0:0:ffff:150f:71fc
21.15.113.253 0:0:0:0:0:ffff:150f:71fd
21.15.113.254 0:0:0:0:0:ffff:150f:71fe
21.15.113.255 0:0:0:0:0:ffff:150f:71ff


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.