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)10.167.184.128/25
network10.167.184.128/25
broadcast10.167.184.255
first host10.167.184.129
last host10.167.184.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.184.128/25
address00001010.10100111.10111000.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.10111000.10000000
broadcast00001010.10100111.10111000.11111111
green = network part, grey = host part
hex0x0aa7b880
decimal178763904
reverse dns128.184.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:b880

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.184.128/3210.167.184.128 – 10.167.184.12810.167.184.128
210.167.184.129/3210.167.184.129 – 10.167.184.12910.167.184.129
310.167.184.130/3210.167.184.130 – 10.167.184.13010.167.184.130
410.167.184.131/3210.167.184.131 – 10.167.184.13110.167.184.131
510.167.184.132/3210.167.184.132 – 10.167.184.13210.167.184.132
610.167.184.133/3210.167.184.133 – 10.167.184.13310.167.184.133
710.167.184.134/3210.167.184.134 – 10.167.184.13410.167.184.134
810.167.184.135/3210.167.184.135 – 10.167.184.13510.167.184.135
910.167.184.136/3210.167.184.136 – 10.167.184.13610.167.184.136
1010.167.184.137/3210.167.184.137 – 10.167.184.13710.167.184.137
1110.167.184.138/3210.167.184.138 – 10.167.184.13810.167.184.138
1210.167.184.139/3210.167.184.139 – 10.167.184.13910.167.184.139
1310.167.184.140/3210.167.184.140 – 10.167.184.14010.167.184.140
1410.167.184.141/3210.167.184.141 – 10.167.184.14110.167.184.141
1510.167.184.142/3210.167.184.142 – 10.167.184.14210.167.184.142
1610.167.184.143/3210.167.184.143 – 10.167.184.14310.167.184.143
1710.167.184.144/3210.167.184.144 – 10.167.184.14410.167.184.144
1810.167.184.145/3210.167.184.145 – 10.167.184.14510.167.184.145
1910.167.184.146/3210.167.184.146 – 10.167.184.14610.167.184.146
2010.167.184.147/3210.167.184.147 – 10.167.184.14710.167.184.147
2110.167.184.148/3210.167.184.148 – 10.167.184.14810.167.184.148
2210.167.184.149/3210.167.184.149 – 10.167.184.14910.167.184.149
2310.167.184.150/3210.167.184.150 – 10.167.184.15010.167.184.150
2410.167.184.151/3210.167.184.151 – 10.167.184.15110.167.184.151
2510.167.184.152/3210.167.184.152 – 10.167.184.15210.167.184.152
2610.167.184.153/3210.167.184.153 – 10.167.184.15310.167.184.153
2710.167.184.154/3210.167.184.154 – 10.167.184.15410.167.184.154
2810.167.184.155/3210.167.184.155 – 10.167.184.15510.167.184.155
2910.167.184.156/3210.167.184.156 – 10.167.184.15610.167.184.156
3010.167.184.157/3210.167.184.157 – 10.167.184.15710.167.184.157
3110.167.184.158/3210.167.184.158 – 10.167.184.15810.167.184.158
3210.167.184.159/3210.167.184.159 – 10.167.184.15910.167.184.159
3310.167.184.160/3210.167.184.160 – 10.167.184.16010.167.184.160
3410.167.184.161/3210.167.184.161 – 10.167.184.16110.167.184.161
3510.167.184.162/3210.167.184.162 – 10.167.184.16210.167.184.162
3610.167.184.163/3210.167.184.163 – 10.167.184.16310.167.184.163
3710.167.184.164/3210.167.184.164 – 10.167.184.16410.167.184.164
3810.167.184.165/3210.167.184.165 – 10.167.184.16510.167.184.165
3910.167.184.166/3210.167.184.166 – 10.167.184.16610.167.184.166
4010.167.184.167/3210.167.184.167 – 10.167.184.16710.167.184.167
4110.167.184.168/3210.167.184.168 – 10.167.184.16810.167.184.168
4210.167.184.169/3210.167.184.169 – 10.167.184.16910.167.184.169
4310.167.184.170/3210.167.184.170 – 10.167.184.17010.167.184.170
4410.167.184.171/3210.167.184.171 – 10.167.184.17110.167.184.171
4510.167.184.172/3210.167.184.172 – 10.167.184.17210.167.184.172
4610.167.184.173/3210.167.184.173 – 10.167.184.17310.167.184.173
4710.167.184.174/3210.167.184.174 – 10.167.184.17410.167.184.174
4810.167.184.175/3210.167.184.175 – 10.167.184.17510.167.184.175
4910.167.184.176/3210.167.184.176 – 10.167.184.17610.167.184.176
5010.167.184.177/3210.167.184.177 – 10.167.184.17710.167.184.177
5110.167.184.178/3210.167.184.178 – 10.167.184.17810.167.184.178
5210.167.184.179/3210.167.184.179 – 10.167.184.17910.167.184.179
5310.167.184.180/3210.167.184.180 – 10.167.184.18010.167.184.180
5410.167.184.181/3210.167.184.181 – 10.167.184.18110.167.184.181
5510.167.184.182/3210.167.184.182 – 10.167.184.18210.167.184.182
5610.167.184.183/3210.167.184.183 – 10.167.184.18310.167.184.183
5710.167.184.184/3210.167.184.184 – 10.167.184.18410.167.184.184
5810.167.184.185/3210.167.184.185 – 10.167.184.18510.167.184.185
5910.167.184.186/3210.167.184.186 – 10.167.184.18610.167.184.186
6010.167.184.187/3210.167.184.187 – 10.167.184.18710.167.184.187
6110.167.184.188/3210.167.184.188 – 10.167.184.18810.167.184.188
6210.167.184.189/3210.167.184.189 – 10.167.184.18910.167.184.189
6310.167.184.190/3210.167.184.190 – 10.167.184.19010.167.184.190
6410.167.184.191/3210.167.184.191 – 10.167.184.19110.167.184.191
6510.167.184.192/3210.167.184.192 – 10.167.184.19210.167.184.192
6610.167.184.193/3210.167.184.193 – 10.167.184.19310.167.184.193
6710.167.184.194/3210.167.184.194 – 10.167.184.19410.167.184.194
6810.167.184.195/3210.167.184.195 – 10.167.184.19510.167.184.195
6910.167.184.196/3210.167.184.196 – 10.167.184.19610.167.184.196
7010.167.184.197/3210.167.184.197 – 10.167.184.19710.167.184.197
7110.167.184.198/3210.167.184.198 – 10.167.184.19810.167.184.198
7210.167.184.199/3210.167.184.199 – 10.167.184.19910.167.184.199
7310.167.184.200/3210.167.184.200 – 10.167.184.20010.167.184.200
7410.167.184.201/3210.167.184.201 – 10.167.184.20110.167.184.201
7510.167.184.202/3210.167.184.202 – 10.167.184.20210.167.184.202
7610.167.184.203/3210.167.184.203 – 10.167.184.20310.167.184.203
7710.167.184.204/3210.167.184.204 – 10.167.184.20410.167.184.204
7810.167.184.205/3210.167.184.205 – 10.167.184.20510.167.184.205
7910.167.184.206/3210.167.184.206 – 10.167.184.20610.167.184.206
8010.167.184.207/3210.167.184.207 – 10.167.184.20710.167.184.207
8110.167.184.208/3210.167.184.208 – 10.167.184.20810.167.184.208
8210.167.184.209/3210.167.184.209 – 10.167.184.20910.167.184.209
8310.167.184.210/3210.167.184.210 – 10.167.184.21010.167.184.210
8410.167.184.211/3210.167.184.211 – 10.167.184.21110.167.184.211
8510.167.184.212/3210.167.184.212 – 10.167.184.21210.167.184.212
8610.167.184.213/3210.167.184.213 – 10.167.184.21310.167.184.213
8710.167.184.214/3210.167.184.214 – 10.167.184.21410.167.184.214
8810.167.184.215/3210.167.184.215 – 10.167.184.21510.167.184.215
8910.167.184.216/3210.167.184.216 – 10.167.184.21610.167.184.216
9010.167.184.217/3210.167.184.217 – 10.167.184.21710.167.184.217
9110.167.184.218/3210.167.184.218 – 10.167.184.21810.167.184.218
9210.167.184.219/3210.167.184.219 – 10.167.184.21910.167.184.219
9310.167.184.220/3210.167.184.220 – 10.167.184.22010.167.184.220
9410.167.184.221/3210.167.184.221 – 10.167.184.22110.167.184.221
9510.167.184.222/3210.167.184.222 – 10.167.184.22210.167.184.222
9610.167.184.223/3210.167.184.223 – 10.167.184.22310.167.184.223
9710.167.184.224/3210.167.184.224 – 10.167.184.22410.167.184.224
9810.167.184.225/3210.167.184.225 – 10.167.184.22510.167.184.225
9910.167.184.226/3210.167.184.226 – 10.167.184.22610.167.184.226
10010.167.184.227/3210.167.184.227 – 10.167.184.22710.167.184.227
10110.167.184.228/3210.167.184.228 – 10.167.184.22810.167.184.228
10210.167.184.229/3210.167.184.229 – 10.167.184.22910.167.184.229
10310.167.184.230/3210.167.184.230 – 10.167.184.23010.167.184.230
10410.167.184.231/3210.167.184.231 – 10.167.184.23110.167.184.231
10510.167.184.232/3210.167.184.232 – 10.167.184.23210.167.184.232
10610.167.184.233/3210.167.184.233 – 10.167.184.23310.167.184.233
10710.167.184.234/3210.167.184.234 – 10.167.184.23410.167.184.234
10810.167.184.235/3210.167.184.235 – 10.167.184.23510.167.184.235
10910.167.184.236/3210.167.184.236 – 10.167.184.23610.167.184.236
11010.167.184.237/3210.167.184.237 – 10.167.184.23710.167.184.237
11110.167.184.238/3210.167.184.238 – 10.167.184.23810.167.184.238
11210.167.184.239/3210.167.184.239 – 10.167.184.23910.167.184.239
11310.167.184.240/3210.167.184.240 – 10.167.184.24010.167.184.240
11410.167.184.241/3210.167.184.241 – 10.167.184.24110.167.184.241
11510.167.184.242/3210.167.184.242 – 10.167.184.24210.167.184.242
11610.167.184.243/3210.167.184.243 – 10.167.184.24310.167.184.243
11710.167.184.244/3210.167.184.244 – 10.167.184.24410.167.184.244
11810.167.184.245/3210.167.184.245 – 10.167.184.24510.167.184.245
11910.167.184.246/3210.167.184.246 – 10.167.184.24610.167.184.246
12010.167.184.247/3210.167.184.247 – 10.167.184.24710.167.184.247
12110.167.184.248/3210.167.184.248 – 10.167.184.24810.167.184.248
12210.167.184.249/3210.167.184.249 – 10.167.184.24910.167.184.249
12310.167.184.250/3210.167.184.250 – 10.167.184.25010.167.184.250
12410.167.184.251/3210.167.184.251 – 10.167.184.25110.167.184.251
12510.167.184.252/3210.167.184.252 – 10.167.184.25210.167.184.252
12610.167.184.253/3210.167.184.253 – 10.167.184.25310.167.184.253
12710.167.184.254/3210.167.184.254 – 10.167.184.25410.167.184.254
12810.167.184.255/3210.167.184.255 – 10.167.184.25510.167.184.255
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 →