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)10.167.224.128/25
network10.167.224.128/25
broadcast10.167.224.255
first host10.167.224.129
last host10.167.224.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.224.128/25
address00001010.10100111.11100000.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.11100000.10000000
broadcast00001010.10100111.11100000.11111111
green = network part, grey = host part
hex0x0aa7e080
decimal178774144
reverse dns128.224.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:e080

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.224.128/3210.167.224.128 – 10.167.224.12810.167.224.128
210.167.224.129/3210.167.224.129 – 10.167.224.12910.167.224.129
310.167.224.130/3210.167.224.130 – 10.167.224.13010.167.224.130
410.167.224.131/3210.167.224.131 – 10.167.224.13110.167.224.131
510.167.224.132/3210.167.224.132 – 10.167.224.13210.167.224.132
610.167.224.133/3210.167.224.133 – 10.167.224.13310.167.224.133
710.167.224.134/3210.167.224.134 – 10.167.224.13410.167.224.134
810.167.224.135/3210.167.224.135 – 10.167.224.13510.167.224.135
910.167.224.136/3210.167.224.136 – 10.167.224.13610.167.224.136
1010.167.224.137/3210.167.224.137 – 10.167.224.13710.167.224.137
1110.167.224.138/3210.167.224.138 – 10.167.224.13810.167.224.138
1210.167.224.139/3210.167.224.139 – 10.167.224.13910.167.224.139
1310.167.224.140/3210.167.224.140 – 10.167.224.14010.167.224.140
1410.167.224.141/3210.167.224.141 – 10.167.224.14110.167.224.141
1510.167.224.142/3210.167.224.142 – 10.167.224.14210.167.224.142
1610.167.224.143/3210.167.224.143 – 10.167.224.14310.167.224.143
1710.167.224.144/3210.167.224.144 – 10.167.224.14410.167.224.144
1810.167.224.145/3210.167.224.145 – 10.167.224.14510.167.224.145
1910.167.224.146/3210.167.224.146 – 10.167.224.14610.167.224.146
2010.167.224.147/3210.167.224.147 – 10.167.224.14710.167.224.147
2110.167.224.148/3210.167.224.148 – 10.167.224.14810.167.224.148
2210.167.224.149/3210.167.224.149 – 10.167.224.14910.167.224.149
2310.167.224.150/3210.167.224.150 – 10.167.224.15010.167.224.150
2410.167.224.151/3210.167.224.151 – 10.167.224.15110.167.224.151
2510.167.224.152/3210.167.224.152 – 10.167.224.15210.167.224.152
2610.167.224.153/3210.167.224.153 – 10.167.224.15310.167.224.153
2710.167.224.154/3210.167.224.154 – 10.167.224.15410.167.224.154
2810.167.224.155/3210.167.224.155 – 10.167.224.15510.167.224.155
2910.167.224.156/3210.167.224.156 – 10.167.224.15610.167.224.156
3010.167.224.157/3210.167.224.157 – 10.167.224.15710.167.224.157
3110.167.224.158/3210.167.224.158 – 10.167.224.15810.167.224.158
3210.167.224.159/3210.167.224.159 – 10.167.224.15910.167.224.159
3310.167.224.160/3210.167.224.160 – 10.167.224.16010.167.224.160
3410.167.224.161/3210.167.224.161 – 10.167.224.16110.167.224.161
3510.167.224.162/3210.167.224.162 – 10.167.224.16210.167.224.162
3610.167.224.163/3210.167.224.163 – 10.167.224.16310.167.224.163
3710.167.224.164/3210.167.224.164 – 10.167.224.16410.167.224.164
3810.167.224.165/3210.167.224.165 – 10.167.224.16510.167.224.165
3910.167.224.166/3210.167.224.166 – 10.167.224.16610.167.224.166
4010.167.224.167/3210.167.224.167 – 10.167.224.16710.167.224.167
4110.167.224.168/3210.167.224.168 – 10.167.224.16810.167.224.168
4210.167.224.169/3210.167.224.169 – 10.167.224.16910.167.224.169
4310.167.224.170/3210.167.224.170 – 10.167.224.17010.167.224.170
4410.167.224.171/3210.167.224.171 – 10.167.224.17110.167.224.171
4510.167.224.172/3210.167.224.172 – 10.167.224.17210.167.224.172
4610.167.224.173/3210.167.224.173 – 10.167.224.17310.167.224.173
4710.167.224.174/3210.167.224.174 – 10.167.224.17410.167.224.174
4810.167.224.175/3210.167.224.175 – 10.167.224.17510.167.224.175
4910.167.224.176/3210.167.224.176 – 10.167.224.17610.167.224.176
5010.167.224.177/3210.167.224.177 – 10.167.224.17710.167.224.177
5110.167.224.178/3210.167.224.178 – 10.167.224.17810.167.224.178
5210.167.224.179/3210.167.224.179 – 10.167.224.17910.167.224.179
5310.167.224.180/3210.167.224.180 – 10.167.224.18010.167.224.180
5410.167.224.181/3210.167.224.181 – 10.167.224.18110.167.224.181
5510.167.224.182/3210.167.224.182 – 10.167.224.18210.167.224.182
5610.167.224.183/3210.167.224.183 – 10.167.224.18310.167.224.183
5710.167.224.184/3210.167.224.184 – 10.167.224.18410.167.224.184
5810.167.224.185/3210.167.224.185 – 10.167.224.18510.167.224.185
5910.167.224.186/3210.167.224.186 – 10.167.224.18610.167.224.186
6010.167.224.187/3210.167.224.187 – 10.167.224.18710.167.224.187
6110.167.224.188/3210.167.224.188 – 10.167.224.18810.167.224.188
6210.167.224.189/3210.167.224.189 – 10.167.224.18910.167.224.189
6310.167.224.190/3210.167.224.190 – 10.167.224.19010.167.224.190
6410.167.224.191/3210.167.224.191 – 10.167.224.19110.167.224.191
6510.167.224.192/3210.167.224.192 – 10.167.224.19210.167.224.192
6610.167.224.193/3210.167.224.193 – 10.167.224.19310.167.224.193
6710.167.224.194/3210.167.224.194 – 10.167.224.19410.167.224.194
6810.167.224.195/3210.167.224.195 – 10.167.224.19510.167.224.195
6910.167.224.196/3210.167.224.196 – 10.167.224.19610.167.224.196
7010.167.224.197/3210.167.224.197 – 10.167.224.19710.167.224.197
7110.167.224.198/3210.167.224.198 – 10.167.224.19810.167.224.198
7210.167.224.199/3210.167.224.199 – 10.167.224.19910.167.224.199
7310.167.224.200/3210.167.224.200 – 10.167.224.20010.167.224.200
7410.167.224.201/3210.167.224.201 – 10.167.224.20110.167.224.201
7510.167.224.202/3210.167.224.202 – 10.167.224.20210.167.224.202
7610.167.224.203/3210.167.224.203 – 10.167.224.20310.167.224.203
7710.167.224.204/3210.167.224.204 – 10.167.224.20410.167.224.204
7810.167.224.205/3210.167.224.205 – 10.167.224.20510.167.224.205
7910.167.224.206/3210.167.224.206 – 10.167.224.20610.167.224.206
8010.167.224.207/3210.167.224.207 – 10.167.224.20710.167.224.207
8110.167.224.208/3210.167.224.208 – 10.167.224.20810.167.224.208
8210.167.224.209/3210.167.224.209 – 10.167.224.20910.167.224.209
8310.167.224.210/3210.167.224.210 – 10.167.224.21010.167.224.210
8410.167.224.211/3210.167.224.211 – 10.167.224.21110.167.224.211
8510.167.224.212/3210.167.224.212 – 10.167.224.21210.167.224.212
8610.167.224.213/3210.167.224.213 – 10.167.224.21310.167.224.213
8710.167.224.214/3210.167.224.214 – 10.167.224.21410.167.224.214
8810.167.224.215/3210.167.224.215 – 10.167.224.21510.167.224.215
8910.167.224.216/3210.167.224.216 – 10.167.224.21610.167.224.216
9010.167.224.217/3210.167.224.217 – 10.167.224.21710.167.224.217
9110.167.224.218/3210.167.224.218 – 10.167.224.21810.167.224.218
9210.167.224.219/3210.167.224.219 – 10.167.224.21910.167.224.219
9310.167.224.220/3210.167.224.220 – 10.167.224.22010.167.224.220
9410.167.224.221/3210.167.224.221 – 10.167.224.22110.167.224.221
9510.167.224.222/3210.167.224.222 – 10.167.224.22210.167.224.222
9610.167.224.223/3210.167.224.223 – 10.167.224.22310.167.224.223
9710.167.224.224/3210.167.224.224 – 10.167.224.22410.167.224.224
9810.167.224.225/3210.167.224.225 – 10.167.224.22510.167.224.225
9910.167.224.226/3210.167.224.226 – 10.167.224.22610.167.224.226
10010.167.224.227/3210.167.224.227 – 10.167.224.22710.167.224.227
10110.167.224.228/3210.167.224.228 – 10.167.224.22810.167.224.228
10210.167.224.229/3210.167.224.229 – 10.167.224.22910.167.224.229
10310.167.224.230/3210.167.224.230 – 10.167.224.23010.167.224.230
10410.167.224.231/3210.167.224.231 – 10.167.224.23110.167.224.231
10510.167.224.232/3210.167.224.232 – 10.167.224.23210.167.224.232
10610.167.224.233/3210.167.224.233 – 10.167.224.23310.167.224.233
10710.167.224.234/3210.167.224.234 – 10.167.224.23410.167.224.234
10810.167.224.235/3210.167.224.235 – 10.167.224.23510.167.224.235
10910.167.224.236/3210.167.224.236 – 10.167.224.23610.167.224.236
11010.167.224.237/3210.167.224.237 – 10.167.224.23710.167.224.237
11110.167.224.238/3210.167.224.238 – 10.167.224.23810.167.224.238
11210.167.224.239/3210.167.224.239 – 10.167.224.23910.167.224.239
11310.167.224.240/3210.167.224.240 – 10.167.224.24010.167.224.240
11410.167.224.241/3210.167.224.241 – 10.167.224.24110.167.224.241
11510.167.224.242/3210.167.224.242 – 10.167.224.24210.167.224.242
11610.167.224.243/3210.167.224.243 – 10.167.224.24310.167.224.243
11710.167.224.244/3210.167.224.244 – 10.167.224.24410.167.224.244
11810.167.224.245/3210.167.224.245 – 10.167.224.24510.167.224.245
11910.167.224.246/3210.167.224.246 – 10.167.224.24610.167.224.246
12010.167.224.247/3210.167.224.247 – 10.167.224.24710.167.224.247
12110.167.224.248/3210.167.224.248 – 10.167.224.24810.167.224.248
12210.167.224.249/3210.167.224.249 – 10.167.224.24910.167.224.249
12310.167.224.250/3210.167.224.250 – 10.167.224.25010.167.224.250
12410.167.224.251/3210.167.224.251 – 10.167.224.25110.167.224.251
12510.167.224.252/3210.167.224.252 – 10.167.224.25210.167.224.252
12610.167.224.253/3210.167.224.253 – 10.167.224.25310.167.224.253
12710.167.224.254/3210.167.224.254 – 10.167.224.25410.167.224.254
12810.167.224.255/3210.167.224.255 – 10.167.224.25510.167.224.255
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 →