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)10.167.14.128/25
network10.167.14.128/25
broadcast10.167.14.255
first host10.167.14.129
last host10.167.14.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.14.128/25
address00001010.10100111.00001110.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.00001110.10000000
broadcast00001010.10100111.00001110.11111111
green = network part, grey = host part
hex0x0aa70e80
decimal178720384
reverse dns128.14.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:e80

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.14.128/3210.167.14.128 – 10.167.14.12810.167.14.128
210.167.14.129/3210.167.14.129 – 10.167.14.12910.167.14.129
310.167.14.130/3210.167.14.130 – 10.167.14.13010.167.14.130
410.167.14.131/3210.167.14.131 – 10.167.14.13110.167.14.131
510.167.14.132/3210.167.14.132 – 10.167.14.13210.167.14.132
610.167.14.133/3210.167.14.133 – 10.167.14.13310.167.14.133
710.167.14.134/3210.167.14.134 – 10.167.14.13410.167.14.134
810.167.14.135/3210.167.14.135 – 10.167.14.13510.167.14.135
910.167.14.136/3210.167.14.136 – 10.167.14.13610.167.14.136
1010.167.14.137/3210.167.14.137 – 10.167.14.13710.167.14.137
1110.167.14.138/3210.167.14.138 – 10.167.14.13810.167.14.138
1210.167.14.139/3210.167.14.139 – 10.167.14.13910.167.14.139
1310.167.14.140/3210.167.14.140 – 10.167.14.14010.167.14.140
1410.167.14.141/3210.167.14.141 – 10.167.14.14110.167.14.141
1510.167.14.142/3210.167.14.142 – 10.167.14.14210.167.14.142
1610.167.14.143/3210.167.14.143 – 10.167.14.14310.167.14.143
1710.167.14.144/3210.167.14.144 – 10.167.14.14410.167.14.144
1810.167.14.145/3210.167.14.145 – 10.167.14.14510.167.14.145
1910.167.14.146/3210.167.14.146 – 10.167.14.14610.167.14.146
2010.167.14.147/3210.167.14.147 – 10.167.14.14710.167.14.147
2110.167.14.148/3210.167.14.148 – 10.167.14.14810.167.14.148
2210.167.14.149/3210.167.14.149 – 10.167.14.14910.167.14.149
2310.167.14.150/3210.167.14.150 – 10.167.14.15010.167.14.150
2410.167.14.151/3210.167.14.151 – 10.167.14.15110.167.14.151
2510.167.14.152/3210.167.14.152 – 10.167.14.15210.167.14.152
2610.167.14.153/3210.167.14.153 – 10.167.14.15310.167.14.153
2710.167.14.154/3210.167.14.154 – 10.167.14.15410.167.14.154
2810.167.14.155/3210.167.14.155 – 10.167.14.15510.167.14.155
2910.167.14.156/3210.167.14.156 – 10.167.14.15610.167.14.156
3010.167.14.157/3210.167.14.157 – 10.167.14.15710.167.14.157
3110.167.14.158/3210.167.14.158 – 10.167.14.15810.167.14.158
3210.167.14.159/3210.167.14.159 – 10.167.14.15910.167.14.159
3310.167.14.160/3210.167.14.160 – 10.167.14.16010.167.14.160
3410.167.14.161/3210.167.14.161 – 10.167.14.16110.167.14.161
3510.167.14.162/3210.167.14.162 – 10.167.14.16210.167.14.162
3610.167.14.163/3210.167.14.163 – 10.167.14.16310.167.14.163
3710.167.14.164/3210.167.14.164 – 10.167.14.16410.167.14.164
3810.167.14.165/3210.167.14.165 – 10.167.14.16510.167.14.165
3910.167.14.166/3210.167.14.166 – 10.167.14.16610.167.14.166
4010.167.14.167/3210.167.14.167 – 10.167.14.16710.167.14.167
4110.167.14.168/3210.167.14.168 – 10.167.14.16810.167.14.168
4210.167.14.169/3210.167.14.169 – 10.167.14.16910.167.14.169
4310.167.14.170/3210.167.14.170 – 10.167.14.17010.167.14.170
4410.167.14.171/3210.167.14.171 – 10.167.14.17110.167.14.171
4510.167.14.172/3210.167.14.172 – 10.167.14.17210.167.14.172
4610.167.14.173/3210.167.14.173 – 10.167.14.17310.167.14.173
4710.167.14.174/3210.167.14.174 – 10.167.14.17410.167.14.174
4810.167.14.175/3210.167.14.175 – 10.167.14.17510.167.14.175
4910.167.14.176/3210.167.14.176 – 10.167.14.17610.167.14.176
5010.167.14.177/3210.167.14.177 – 10.167.14.17710.167.14.177
5110.167.14.178/3210.167.14.178 – 10.167.14.17810.167.14.178
5210.167.14.179/3210.167.14.179 – 10.167.14.17910.167.14.179
5310.167.14.180/3210.167.14.180 – 10.167.14.18010.167.14.180
5410.167.14.181/3210.167.14.181 – 10.167.14.18110.167.14.181
5510.167.14.182/3210.167.14.182 – 10.167.14.18210.167.14.182
5610.167.14.183/3210.167.14.183 – 10.167.14.18310.167.14.183
5710.167.14.184/3210.167.14.184 – 10.167.14.18410.167.14.184
5810.167.14.185/3210.167.14.185 – 10.167.14.18510.167.14.185
5910.167.14.186/3210.167.14.186 – 10.167.14.18610.167.14.186
6010.167.14.187/3210.167.14.187 – 10.167.14.18710.167.14.187
6110.167.14.188/3210.167.14.188 – 10.167.14.18810.167.14.188
6210.167.14.189/3210.167.14.189 – 10.167.14.18910.167.14.189
6310.167.14.190/3210.167.14.190 – 10.167.14.19010.167.14.190
6410.167.14.191/3210.167.14.191 – 10.167.14.19110.167.14.191
6510.167.14.192/3210.167.14.192 – 10.167.14.19210.167.14.192
6610.167.14.193/3210.167.14.193 – 10.167.14.19310.167.14.193
6710.167.14.194/3210.167.14.194 – 10.167.14.19410.167.14.194
6810.167.14.195/3210.167.14.195 – 10.167.14.19510.167.14.195
6910.167.14.196/3210.167.14.196 – 10.167.14.19610.167.14.196
7010.167.14.197/3210.167.14.197 – 10.167.14.19710.167.14.197
7110.167.14.198/3210.167.14.198 – 10.167.14.19810.167.14.198
7210.167.14.199/3210.167.14.199 – 10.167.14.19910.167.14.199
7310.167.14.200/3210.167.14.200 – 10.167.14.20010.167.14.200
7410.167.14.201/3210.167.14.201 – 10.167.14.20110.167.14.201
7510.167.14.202/3210.167.14.202 – 10.167.14.20210.167.14.202
7610.167.14.203/3210.167.14.203 – 10.167.14.20310.167.14.203
7710.167.14.204/3210.167.14.204 – 10.167.14.20410.167.14.204
7810.167.14.205/3210.167.14.205 – 10.167.14.20510.167.14.205
7910.167.14.206/3210.167.14.206 – 10.167.14.20610.167.14.206
8010.167.14.207/3210.167.14.207 – 10.167.14.20710.167.14.207
8110.167.14.208/3210.167.14.208 – 10.167.14.20810.167.14.208
8210.167.14.209/3210.167.14.209 – 10.167.14.20910.167.14.209
8310.167.14.210/3210.167.14.210 – 10.167.14.21010.167.14.210
8410.167.14.211/3210.167.14.211 – 10.167.14.21110.167.14.211
8510.167.14.212/3210.167.14.212 – 10.167.14.21210.167.14.212
8610.167.14.213/3210.167.14.213 – 10.167.14.21310.167.14.213
8710.167.14.214/3210.167.14.214 – 10.167.14.21410.167.14.214
8810.167.14.215/3210.167.14.215 – 10.167.14.21510.167.14.215
8910.167.14.216/3210.167.14.216 – 10.167.14.21610.167.14.216
9010.167.14.217/3210.167.14.217 – 10.167.14.21710.167.14.217
9110.167.14.218/3210.167.14.218 – 10.167.14.21810.167.14.218
9210.167.14.219/3210.167.14.219 – 10.167.14.21910.167.14.219
9310.167.14.220/3210.167.14.220 – 10.167.14.22010.167.14.220
9410.167.14.221/3210.167.14.221 – 10.167.14.22110.167.14.221
9510.167.14.222/3210.167.14.222 – 10.167.14.22210.167.14.222
9610.167.14.223/3210.167.14.223 – 10.167.14.22310.167.14.223
9710.167.14.224/3210.167.14.224 – 10.167.14.22410.167.14.224
9810.167.14.225/3210.167.14.225 – 10.167.14.22510.167.14.225
9910.167.14.226/3210.167.14.226 – 10.167.14.22610.167.14.226
10010.167.14.227/3210.167.14.227 – 10.167.14.22710.167.14.227
10110.167.14.228/3210.167.14.228 – 10.167.14.22810.167.14.228
10210.167.14.229/3210.167.14.229 – 10.167.14.22910.167.14.229
10310.167.14.230/3210.167.14.230 – 10.167.14.23010.167.14.230
10410.167.14.231/3210.167.14.231 – 10.167.14.23110.167.14.231
10510.167.14.232/3210.167.14.232 – 10.167.14.23210.167.14.232
10610.167.14.233/3210.167.14.233 – 10.167.14.23310.167.14.233
10710.167.14.234/3210.167.14.234 – 10.167.14.23410.167.14.234
10810.167.14.235/3210.167.14.235 – 10.167.14.23510.167.14.235
10910.167.14.236/3210.167.14.236 – 10.167.14.23610.167.14.236
11010.167.14.237/3210.167.14.237 – 10.167.14.23710.167.14.237
11110.167.14.238/3210.167.14.238 – 10.167.14.23810.167.14.238
11210.167.14.239/3210.167.14.239 – 10.167.14.23910.167.14.239
11310.167.14.240/3210.167.14.240 – 10.167.14.24010.167.14.240
11410.167.14.241/3210.167.14.241 – 10.167.14.24110.167.14.241
11510.167.14.242/3210.167.14.242 – 10.167.14.24210.167.14.242
11610.167.14.243/3210.167.14.243 – 10.167.14.24310.167.14.243
11710.167.14.244/3210.167.14.244 – 10.167.14.24410.167.14.244
11810.167.14.245/3210.167.14.245 – 10.167.14.24510.167.14.245
11910.167.14.246/3210.167.14.246 – 10.167.14.24610.167.14.246
12010.167.14.247/3210.167.14.247 – 10.167.14.24710.167.14.247
12110.167.14.248/3210.167.14.248 – 10.167.14.24810.167.14.248
12210.167.14.249/3210.167.14.249 – 10.167.14.24910.167.14.249
12310.167.14.250/3210.167.14.250 – 10.167.14.25010.167.14.250
12410.167.14.251/3210.167.14.251 – 10.167.14.25110.167.14.251
12510.167.14.252/3210.167.14.252 – 10.167.14.25210.167.14.252
12610.167.14.253/3210.167.14.253 – 10.167.14.25310.167.14.253
12710.167.14.254/3210.167.14.254 – 10.167.14.25410.167.14.254
12810.167.14.255/3210.167.14.255 – 10.167.14.25510.167.14.255
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 →