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)10.167.226.128/25
network10.167.226.128/25
broadcast10.167.226.255
first host10.167.226.129
last host10.167.226.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.226.128/25
address00001010.10100111.11100010.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.11100010.10000000
broadcast00001010.10100111.11100010.11111111
green = network part, grey = host part
hex0x0aa7e280
decimal178774656
reverse dns128.226.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:e280

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.226.128/3210.167.226.128 – 10.167.226.12810.167.226.128
210.167.226.129/3210.167.226.129 – 10.167.226.12910.167.226.129
310.167.226.130/3210.167.226.130 – 10.167.226.13010.167.226.130
410.167.226.131/3210.167.226.131 – 10.167.226.13110.167.226.131
510.167.226.132/3210.167.226.132 – 10.167.226.13210.167.226.132
610.167.226.133/3210.167.226.133 – 10.167.226.13310.167.226.133
710.167.226.134/3210.167.226.134 – 10.167.226.13410.167.226.134
810.167.226.135/3210.167.226.135 – 10.167.226.13510.167.226.135
910.167.226.136/3210.167.226.136 – 10.167.226.13610.167.226.136
1010.167.226.137/3210.167.226.137 – 10.167.226.13710.167.226.137
1110.167.226.138/3210.167.226.138 – 10.167.226.13810.167.226.138
1210.167.226.139/3210.167.226.139 – 10.167.226.13910.167.226.139
1310.167.226.140/3210.167.226.140 – 10.167.226.14010.167.226.140
1410.167.226.141/3210.167.226.141 – 10.167.226.14110.167.226.141
1510.167.226.142/3210.167.226.142 – 10.167.226.14210.167.226.142
1610.167.226.143/3210.167.226.143 – 10.167.226.14310.167.226.143
1710.167.226.144/3210.167.226.144 – 10.167.226.14410.167.226.144
1810.167.226.145/3210.167.226.145 – 10.167.226.14510.167.226.145
1910.167.226.146/3210.167.226.146 – 10.167.226.14610.167.226.146
2010.167.226.147/3210.167.226.147 – 10.167.226.14710.167.226.147
2110.167.226.148/3210.167.226.148 – 10.167.226.14810.167.226.148
2210.167.226.149/3210.167.226.149 – 10.167.226.14910.167.226.149
2310.167.226.150/3210.167.226.150 – 10.167.226.15010.167.226.150
2410.167.226.151/3210.167.226.151 – 10.167.226.15110.167.226.151
2510.167.226.152/3210.167.226.152 – 10.167.226.15210.167.226.152
2610.167.226.153/3210.167.226.153 – 10.167.226.15310.167.226.153
2710.167.226.154/3210.167.226.154 – 10.167.226.15410.167.226.154
2810.167.226.155/3210.167.226.155 – 10.167.226.15510.167.226.155
2910.167.226.156/3210.167.226.156 – 10.167.226.15610.167.226.156
3010.167.226.157/3210.167.226.157 – 10.167.226.15710.167.226.157
3110.167.226.158/3210.167.226.158 – 10.167.226.15810.167.226.158
3210.167.226.159/3210.167.226.159 – 10.167.226.15910.167.226.159
3310.167.226.160/3210.167.226.160 – 10.167.226.16010.167.226.160
3410.167.226.161/3210.167.226.161 – 10.167.226.16110.167.226.161
3510.167.226.162/3210.167.226.162 – 10.167.226.16210.167.226.162
3610.167.226.163/3210.167.226.163 – 10.167.226.16310.167.226.163
3710.167.226.164/3210.167.226.164 – 10.167.226.16410.167.226.164
3810.167.226.165/3210.167.226.165 – 10.167.226.16510.167.226.165
3910.167.226.166/3210.167.226.166 – 10.167.226.16610.167.226.166
4010.167.226.167/3210.167.226.167 – 10.167.226.16710.167.226.167
4110.167.226.168/3210.167.226.168 – 10.167.226.16810.167.226.168
4210.167.226.169/3210.167.226.169 – 10.167.226.16910.167.226.169
4310.167.226.170/3210.167.226.170 – 10.167.226.17010.167.226.170
4410.167.226.171/3210.167.226.171 – 10.167.226.17110.167.226.171
4510.167.226.172/3210.167.226.172 – 10.167.226.17210.167.226.172
4610.167.226.173/3210.167.226.173 – 10.167.226.17310.167.226.173
4710.167.226.174/3210.167.226.174 – 10.167.226.17410.167.226.174
4810.167.226.175/3210.167.226.175 – 10.167.226.17510.167.226.175
4910.167.226.176/3210.167.226.176 – 10.167.226.17610.167.226.176
5010.167.226.177/3210.167.226.177 – 10.167.226.17710.167.226.177
5110.167.226.178/3210.167.226.178 – 10.167.226.17810.167.226.178
5210.167.226.179/3210.167.226.179 – 10.167.226.17910.167.226.179
5310.167.226.180/3210.167.226.180 – 10.167.226.18010.167.226.180
5410.167.226.181/3210.167.226.181 – 10.167.226.18110.167.226.181
5510.167.226.182/3210.167.226.182 – 10.167.226.18210.167.226.182
5610.167.226.183/3210.167.226.183 – 10.167.226.18310.167.226.183
5710.167.226.184/3210.167.226.184 – 10.167.226.18410.167.226.184
5810.167.226.185/3210.167.226.185 – 10.167.226.18510.167.226.185
5910.167.226.186/3210.167.226.186 – 10.167.226.18610.167.226.186
6010.167.226.187/3210.167.226.187 – 10.167.226.18710.167.226.187
6110.167.226.188/3210.167.226.188 – 10.167.226.18810.167.226.188
6210.167.226.189/3210.167.226.189 – 10.167.226.18910.167.226.189
6310.167.226.190/3210.167.226.190 – 10.167.226.19010.167.226.190
6410.167.226.191/3210.167.226.191 – 10.167.226.19110.167.226.191
6510.167.226.192/3210.167.226.192 – 10.167.226.19210.167.226.192
6610.167.226.193/3210.167.226.193 – 10.167.226.19310.167.226.193
6710.167.226.194/3210.167.226.194 – 10.167.226.19410.167.226.194
6810.167.226.195/3210.167.226.195 – 10.167.226.19510.167.226.195
6910.167.226.196/3210.167.226.196 – 10.167.226.19610.167.226.196
7010.167.226.197/3210.167.226.197 – 10.167.226.19710.167.226.197
7110.167.226.198/3210.167.226.198 – 10.167.226.19810.167.226.198
7210.167.226.199/3210.167.226.199 – 10.167.226.19910.167.226.199
7310.167.226.200/3210.167.226.200 – 10.167.226.20010.167.226.200
7410.167.226.201/3210.167.226.201 – 10.167.226.20110.167.226.201
7510.167.226.202/3210.167.226.202 – 10.167.226.20210.167.226.202
7610.167.226.203/3210.167.226.203 – 10.167.226.20310.167.226.203
7710.167.226.204/3210.167.226.204 – 10.167.226.20410.167.226.204
7810.167.226.205/3210.167.226.205 – 10.167.226.20510.167.226.205
7910.167.226.206/3210.167.226.206 – 10.167.226.20610.167.226.206
8010.167.226.207/3210.167.226.207 – 10.167.226.20710.167.226.207
8110.167.226.208/3210.167.226.208 – 10.167.226.20810.167.226.208
8210.167.226.209/3210.167.226.209 – 10.167.226.20910.167.226.209
8310.167.226.210/3210.167.226.210 – 10.167.226.21010.167.226.210
8410.167.226.211/3210.167.226.211 – 10.167.226.21110.167.226.211
8510.167.226.212/3210.167.226.212 – 10.167.226.21210.167.226.212
8610.167.226.213/3210.167.226.213 – 10.167.226.21310.167.226.213
8710.167.226.214/3210.167.226.214 – 10.167.226.21410.167.226.214
8810.167.226.215/3210.167.226.215 – 10.167.226.21510.167.226.215
8910.167.226.216/3210.167.226.216 – 10.167.226.21610.167.226.216
9010.167.226.217/3210.167.226.217 – 10.167.226.21710.167.226.217
9110.167.226.218/3210.167.226.218 – 10.167.226.21810.167.226.218
9210.167.226.219/3210.167.226.219 – 10.167.226.21910.167.226.219
9310.167.226.220/3210.167.226.220 – 10.167.226.22010.167.226.220
9410.167.226.221/3210.167.226.221 – 10.167.226.22110.167.226.221
9510.167.226.222/3210.167.226.222 – 10.167.226.22210.167.226.222
9610.167.226.223/3210.167.226.223 – 10.167.226.22310.167.226.223
9710.167.226.224/3210.167.226.224 – 10.167.226.22410.167.226.224
9810.167.226.225/3210.167.226.225 – 10.167.226.22510.167.226.225
9910.167.226.226/3210.167.226.226 – 10.167.226.22610.167.226.226
10010.167.226.227/3210.167.226.227 – 10.167.226.22710.167.226.227
10110.167.226.228/3210.167.226.228 – 10.167.226.22810.167.226.228
10210.167.226.229/3210.167.226.229 – 10.167.226.22910.167.226.229
10310.167.226.230/3210.167.226.230 – 10.167.226.23010.167.226.230
10410.167.226.231/3210.167.226.231 – 10.167.226.23110.167.226.231
10510.167.226.232/3210.167.226.232 – 10.167.226.23210.167.226.232
10610.167.226.233/3210.167.226.233 – 10.167.226.23310.167.226.233
10710.167.226.234/3210.167.226.234 – 10.167.226.23410.167.226.234
10810.167.226.235/3210.167.226.235 – 10.167.226.23510.167.226.235
10910.167.226.236/3210.167.226.236 – 10.167.226.23610.167.226.236
11010.167.226.237/3210.167.226.237 – 10.167.226.23710.167.226.237
11110.167.226.238/3210.167.226.238 – 10.167.226.23810.167.226.238
11210.167.226.239/3210.167.226.239 – 10.167.226.23910.167.226.239
11310.167.226.240/3210.167.226.240 – 10.167.226.24010.167.226.240
11410.167.226.241/3210.167.226.241 – 10.167.226.24110.167.226.241
11510.167.226.242/3210.167.226.242 – 10.167.226.24210.167.226.242
11610.167.226.243/3210.167.226.243 – 10.167.226.24310.167.226.243
11710.167.226.244/3210.167.226.244 – 10.167.226.24410.167.226.244
11810.167.226.245/3210.167.226.245 – 10.167.226.24510.167.226.245
11910.167.226.246/3210.167.226.246 – 10.167.226.24610.167.226.246
12010.167.226.247/3210.167.226.247 – 10.167.226.24710.167.226.247
12110.167.226.248/3210.167.226.248 – 10.167.226.24810.167.226.248
12210.167.226.249/3210.167.226.249 – 10.167.226.24910.167.226.249
12310.167.226.250/3210.167.226.250 – 10.167.226.25010.167.226.250
12410.167.226.251/3210.167.226.251 – 10.167.226.25110.167.226.251
12510.167.226.252/3210.167.226.252 – 10.167.226.25210.167.226.252
12610.167.226.253/3210.167.226.253 – 10.167.226.25310.167.226.253
12710.167.226.254/3210.167.226.254 – 10.167.226.25410.167.226.254
12810.167.226.255/3210.167.226.255 – 10.167.226.25510.167.226.255
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 →