ip
ipku.in

IPv4 Subnet Calculator

Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.

$ ipcalc
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.167.214.128/25
network10.167.214.128/25
broadcast10.167.214.255
first host10.167.214.129
last host10.167.214.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.214.128/25
address00001010.10100111.11010110.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.11010110.10000000
broadcast00001010.10100111.11010110.11111111
green = network part, grey = host part
hex0x0aa7d680
decimal178771584
reverse dns128.214.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:d680

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.214.128/3210.167.214.128 – 10.167.214.12810.167.214.128
210.167.214.129/3210.167.214.129 – 10.167.214.12910.167.214.129
310.167.214.130/3210.167.214.130 – 10.167.214.13010.167.214.130
410.167.214.131/3210.167.214.131 – 10.167.214.13110.167.214.131
510.167.214.132/3210.167.214.132 – 10.167.214.13210.167.214.132
610.167.214.133/3210.167.214.133 – 10.167.214.13310.167.214.133
710.167.214.134/3210.167.214.134 – 10.167.214.13410.167.214.134
810.167.214.135/3210.167.214.135 – 10.167.214.13510.167.214.135
910.167.214.136/3210.167.214.136 – 10.167.214.13610.167.214.136
1010.167.214.137/3210.167.214.137 – 10.167.214.13710.167.214.137
1110.167.214.138/3210.167.214.138 – 10.167.214.13810.167.214.138
1210.167.214.139/3210.167.214.139 – 10.167.214.13910.167.214.139
1310.167.214.140/3210.167.214.140 – 10.167.214.14010.167.214.140
1410.167.214.141/3210.167.214.141 – 10.167.214.14110.167.214.141
1510.167.214.142/3210.167.214.142 – 10.167.214.14210.167.214.142
1610.167.214.143/3210.167.214.143 – 10.167.214.14310.167.214.143
1710.167.214.144/3210.167.214.144 – 10.167.214.14410.167.214.144
1810.167.214.145/3210.167.214.145 – 10.167.214.14510.167.214.145
1910.167.214.146/3210.167.214.146 – 10.167.214.14610.167.214.146
2010.167.214.147/3210.167.214.147 – 10.167.214.14710.167.214.147
2110.167.214.148/3210.167.214.148 – 10.167.214.14810.167.214.148
2210.167.214.149/3210.167.214.149 – 10.167.214.14910.167.214.149
2310.167.214.150/3210.167.214.150 – 10.167.214.15010.167.214.150
2410.167.214.151/3210.167.214.151 – 10.167.214.15110.167.214.151
2510.167.214.152/3210.167.214.152 – 10.167.214.15210.167.214.152
2610.167.214.153/3210.167.214.153 – 10.167.214.15310.167.214.153
2710.167.214.154/3210.167.214.154 – 10.167.214.15410.167.214.154
2810.167.214.155/3210.167.214.155 – 10.167.214.15510.167.214.155
2910.167.214.156/3210.167.214.156 – 10.167.214.15610.167.214.156
3010.167.214.157/3210.167.214.157 – 10.167.214.15710.167.214.157
3110.167.214.158/3210.167.214.158 – 10.167.214.15810.167.214.158
3210.167.214.159/3210.167.214.159 – 10.167.214.15910.167.214.159
3310.167.214.160/3210.167.214.160 – 10.167.214.16010.167.214.160
3410.167.214.161/3210.167.214.161 – 10.167.214.16110.167.214.161
3510.167.214.162/3210.167.214.162 – 10.167.214.16210.167.214.162
3610.167.214.163/3210.167.214.163 – 10.167.214.16310.167.214.163
3710.167.214.164/3210.167.214.164 – 10.167.214.16410.167.214.164
3810.167.214.165/3210.167.214.165 – 10.167.214.16510.167.214.165
3910.167.214.166/3210.167.214.166 – 10.167.214.16610.167.214.166
4010.167.214.167/3210.167.214.167 – 10.167.214.16710.167.214.167
4110.167.214.168/3210.167.214.168 – 10.167.214.16810.167.214.168
4210.167.214.169/3210.167.214.169 – 10.167.214.16910.167.214.169
4310.167.214.170/3210.167.214.170 – 10.167.214.17010.167.214.170
4410.167.214.171/3210.167.214.171 – 10.167.214.17110.167.214.171
4510.167.214.172/3210.167.214.172 – 10.167.214.17210.167.214.172
4610.167.214.173/3210.167.214.173 – 10.167.214.17310.167.214.173
4710.167.214.174/3210.167.214.174 – 10.167.214.17410.167.214.174
4810.167.214.175/3210.167.214.175 – 10.167.214.17510.167.214.175
4910.167.214.176/3210.167.214.176 – 10.167.214.17610.167.214.176
5010.167.214.177/3210.167.214.177 – 10.167.214.17710.167.214.177
5110.167.214.178/3210.167.214.178 – 10.167.214.17810.167.214.178
5210.167.214.179/3210.167.214.179 – 10.167.214.17910.167.214.179
5310.167.214.180/3210.167.214.180 – 10.167.214.18010.167.214.180
5410.167.214.181/3210.167.214.181 – 10.167.214.18110.167.214.181
5510.167.214.182/3210.167.214.182 – 10.167.214.18210.167.214.182
5610.167.214.183/3210.167.214.183 – 10.167.214.18310.167.214.183
5710.167.214.184/3210.167.214.184 – 10.167.214.18410.167.214.184
5810.167.214.185/3210.167.214.185 – 10.167.214.18510.167.214.185
5910.167.214.186/3210.167.214.186 – 10.167.214.18610.167.214.186
6010.167.214.187/3210.167.214.187 – 10.167.214.18710.167.214.187
6110.167.214.188/3210.167.214.188 – 10.167.214.18810.167.214.188
6210.167.214.189/3210.167.214.189 – 10.167.214.18910.167.214.189
6310.167.214.190/3210.167.214.190 – 10.167.214.19010.167.214.190
6410.167.214.191/3210.167.214.191 – 10.167.214.19110.167.214.191
6510.167.214.192/3210.167.214.192 – 10.167.214.19210.167.214.192
6610.167.214.193/3210.167.214.193 – 10.167.214.19310.167.214.193
6710.167.214.194/3210.167.214.194 – 10.167.214.19410.167.214.194
6810.167.214.195/3210.167.214.195 – 10.167.214.19510.167.214.195
6910.167.214.196/3210.167.214.196 – 10.167.214.19610.167.214.196
7010.167.214.197/3210.167.214.197 – 10.167.214.19710.167.214.197
7110.167.214.198/3210.167.214.198 – 10.167.214.19810.167.214.198
7210.167.214.199/3210.167.214.199 – 10.167.214.19910.167.214.199
7310.167.214.200/3210.167.214.200 – 10.167.214.20010.167.214.200
7410.167.214.201/3210.167.214.201 – 10.167.214.20110.167.214.201
7510.167.214.202/3210.167.214.202 – 10.167.214.20210.167.214.202
7610.167.214.203/3210.167.214.203 – 10.167.214.20310.167.214.203
7710.167.214.204/3210.167.214.204 – 10.167.214.20410.167.214.204
7810.167.214.205/3210.167.214.205 – 10.167.214.20510.167.214.205
7910.167.214.206/3210.167.214.206 – 10.167.214.20610.167.214.206
8010.167.214.207/3210.167.214.207 – 10.167.214.20710.167.214.207
8110.167.214.208/3210.167.214.208 – 10.167.214.20810.167.214.208
8210.167.214.209/3210.167.214.209 – 10.167.214.20910.167.214.209
8310.167.214.210/3210.167.214.210 – 10.167.214.21010.167.214.210
8410.167.214.211/3210.167.214.211 – 10.167.214.21110.167.214.211
8510.167.214.212/3210.167.214.212 – 10.167.214.21210.167.214.212
8610.167.214.213/3210.167.214.213 – 10.167.214.21310.167.214.213
8710.167.214.214/3210.167.214.214 – 10.167.214.21410.167.214.214
8810.167.214.215/3210.167.214.215 – 10.167.214.21510.167.214.215
8910.167.214.216/3210.167.214.216 – 10.167.214.21610.167.214.216
9010.167.214.217/3210.167.214.217 – 10.167.214.21710.167.214.217
9110.167.214.218/3210.167.214.218 – 10.167.214.21810.167.214.218
9210.167.214.219/3210.167.214.219 – 10.167.214.21910.167.214.219
9310.167.214.220/3210.167.214.220 – 10.167.214.22010.167.214.220
9410.167.214.221/3210.167.214.221 – 10.167.214.22110.167.214.221
9510.167.214.222/3210.167.214.222 – 10.167.214.22210.167.214.222
9610.167.214.223/3210.167.214.223 – 10.167.214.22310.167.214.223
9710.167.214.224/3210.167.214.224 – 10.167.214.22410.167.214.224
9810.167.214.225/3210.167.214.225 – 10.167.214.22510.167.214.225
9910.167.214.226/3210.167.214.226 – 10.167.214.22610.167.214.226
10010.167.214.227/3210.167.214.227 – 10.167.214.22710.167.214.227
10110.167.214.228/3210.167.214.228 – 10.167.214.22810.167.214.228
10210.167.214.229/3210.167.214.229 – 10.167.214.22910.167.214.229
10310.167.214.230/3210.167.214.230 – 10.167.214.23010.167.214.230
10410.167.214.231/3210.167.214.231 – 10.167.214.23110.167.214.231
10510.167.214.232/3210.167.214.232 – 10.167.214.23210.167.214.232
10610.167.214.233/3210.167.214.233 – 10.167.214.23310.167.214.233
10710.167.214.234/3210.167.214.234 – 10.167.214.23410.167.214.234
10810.167.214.235/3210.167.214.235 – 10.167.214.23510.167.214.235
10910.167.214.236/3210.167.214.236 – 10.167.214.23610.167.214.236
11010.167.214.237/3210.167.214.237 – 10.167.214.23710.167.214.237
11110.167.214.238/3210.167.214.238 – 10.167.214.23810.167.214.238
11210.167.214.239/3210.167.214.239 – 10.167.214.23910.167.214.239
11310.167.214.240/3210.167.214.240 – 10.167.214.24010.167.214.240
11410.167.214.241/3210.167.214.241 – 10.167.214.24110.167.214.241
11510.167.214.242/3210.167.214.242 – 10.167.214.24210.167.214.242
11610.167.214.243/3210.167.214.243 – 10.167.214.24310.167.214.243
11710.167.214.244/3210.167.214.244 – 10.167.214.24410.167.214.244
11810.167.214.245/3210.167.214.245 – 10.167.214.24510.167.214.245
11910.167.214.246/3210.167.214.246 – 10.167.214.24610.167.214.246
12010.167.214.247/3210.167.214.247 – 10.167.214.24710.167.214.247
12110.167.214.248/3210.167.214.248 – 10.167.214.24810.167.214.248
12210.167.214.249/3210.167.214.249 – 10.167.214.24910.167.214.249
12310.167.214.250/3210.167.214.250 – 10.167.214.25010.167.214.250
12410.167.214.251/3210.167.214.251 – 10.167.214.25110.167.214.251
12510.167.214.252/3210.167.214.252 – 10.167.214.25210.167.214.252
12610.167.214.253/3210.167.214.253 – 10.167.214.25310.167.214.253
12710.167.214.254/3210.167.214.254 – 10.167.214.25410.167.214.254
12810.167.214.255/3210.167.214.255 – 10.167.214.25510.167.214.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /25
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.0256254-
/25255.255.255.1281281261
/26255.255.255.19264622 split →
/27255.255.255.22432304 split →
/28255.255.255.24016148 split →
/29255.255.255.2488616 split →
/30255.255.255.2524232 split →
/31255.255.255.2542264 split →
/32255.255.255.25511128 split →
02 / faq

About this calculator.

How do I use this subnet calculator?

▼

Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.

Why are usable hosts always 2 fewer?

▼

The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.

Can I use it from a terminal?

▼

Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.

Learn how to work it out →