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
private IP (RFC 1918)10.167.222.128/25
network10.167.222.128/25
broadcast10.167.222.255
first host10.167.222.129
last host10.167.222.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.222.128/25
address00001010.10100111.11011110.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.11011110.10000000
broadcast00001010.10100111.11011110.11111111
green = network part, grey = host part
hex0x0aa7de80
decimal178773632
reverse dns128.222.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:de80

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.222.128/3210.167.222.128 – 10.167.222.12810.167.222.128
210.167.222.129/3210.167.222.129 – 10.167.222.12910.167.222.129
310.167.222.130/3210.167.222.130 – 10.167.222.13010.167.222.130
410.167.222.131/3210.167.222.131 – 10.167.222.13110.167.222.131
510.167.222.132/3210.167.222.132 – 10.167.222.13210.167.222.132
610.167.222.133/3210.167.222.133 – 10.167.222.13310.167.222.133
710.167.222.134/3210.167.222.134 – 10.167.222.13410.167.222.134
810.167.222.135/3210.167.222.135 – 10.167.222.13510.167.222.135
910.167.222.136/3210.167.222.136 – 10.167.222.13610.167.222.136
1010.167.222.137/3210.167.222.137 – 10.167.222.13710.167.222.137
1110.167.222.138/3210.167.222.138 – 10.167.222.13810.167.222.138
1210.167.222.139/3210.167.222.139 – 10.167.222.13910.167.222.139
1310.167.222.140/3210.167.222.140 – 10.167.222.14010.167.222.140
1410.167.222.141/3210.167.222.141 – 10.167.222.14110.167.222.141
1510.167.222.142/3210.167.222.142 – 10.167.222.14210.167.222.142
1610.167.222.143/3210.167.222.143 – 10.167.222.14310.167.222.143
1710.167.222.144/3210.167.222.144 – 10.167.222.14410.167.222.144
1810.167.222.145/3210.167.222.145 – 10.167.222.14510.167.222.145
1910.167.222.146/3210.167.222.146 – 10.167.222.14610.167.222.146
2010.167.222.147/3210.167.222.147 – 10.167.222.14710.167.222.147
2110.167.222.148/3210.167.222.148 – 10.167.222.14810.167.222.148
2210.167.222.149/3210.167.222.149 – 10.167.222.14910.167.222.149
2310.167.222.150/3210.167.222.150 – 10.167.222.15010.167.222.150
2410.167.222.151/3210.167.222.151 – 10.167.222.15110.167.222.151
2510.167.222.152/3210.167.222.152 – 10.167.222.15210.167.222.152
2610.167.222.153/3210.167.222.153 – 10.167.222.15310.167.222.153
2710.167.222.154/3210.167.222.154 – 10.167.222.15410.167.222.154
2810.167.222.155/3210.167.222.155 – 10.167.222.15510.167.222.155
2910.167.222.156/3210.167.222.156 – 10.167.222.15610.167.222.156
3010.167.222.157/3210.167.222.157 – 10.167.222.15710.167.222.157
3110.167.222.158/3210.167.222.158 – 10.167.222.15810.167.222.158
3210.167.222.159/3210.167.222.159 – 10.167.222.15910.167.222.159
3310.167.222.160/3210.167.222.160 – 10.167.222.16010.167.222.160
3410.167.222.161/3210.167.222.161 – 10.167.222.16110.167.222.161
3510.167.222.162/3210.167.222.162 – 10.167.222.16210.167.222.162
3610.167.222.163/3210.167.222.163 – 10.167.222.16310.167.222.163
3710.167.222.164/3210.167.222.164 – 10.167.222.16410.167.222.164
3810.167.222.165/3210.167.222.165 – 10.167.222.16510.167.222.165
3910.167.222.166/3210.167.222.166 – 10.167.222.16610.167.222.166
4010.167.222.167/3210.167.222.167 – 10.167.222.16710.167.222.167
4110.167.222.168/3210.167.222.168 – 10.167.222.16810.167.222.168
4210.167.222.169/3210.167.222.169 – 10.167.222.16910.167.222.169
4310.167.222.170/3210.167.222.170 – 10.167.222.17010.167.222.170
4410.167.222.171/3210.167.222.171 – 10.167.222.17110.167.222.171
4510.167.222.172/3210.167.222.172 – 10.167.222.17210.167.222.172
4610.167.222.173/3210.167.222.173 – 10.167.222.17310.167.222.173
4710.167.222.174/3210.167.222.174 – 10.167.222.17410.167.222.174
4810.167.222.175/3210.167.222.175 – 10.167.222.17510.167.222.175
4910.167.222.176/3210.167.222.176 – 10.167.222.17610.167.222.176
5010.167.222.177/3210.167.222.177 – 10.167.222.17710.167.222.177
5110.167.222.178/3210.167.222.178 – 10.167.222.17810.167.222.178
5210.167.222.179/3210.167.222.179 – 10.167.222.17910.167.222.179
5310.167.222.180/3210.167.222.180 – 10.167.222.18010.167.222.180
5410.167.222.181/3210.167.222.181 – 10.167.222.18110.167.222.181
5510.167.222.182/3210.167.222.182 – 10.167.222.18210.167.222.182
5610.167.222.183/3210.167.222.183 – 10.167.222.18310.167.222.183
5710.167.222.184/3210.167.222.184 – 10.167.222.18410.167.222.184
5810.167.222.185/3210.167.222.185 – 10.167.222.18510.167.222.185
5910.167.222.186/3210.167.222.186 – 10.167.222.18610.167.222.186
6010.167.222.187/3210.167.222.187 – 10.167.222.18710.167.222.187
6110.167.222.188/3210.167.222.188 – 10.167.222.18810.167.222.188
6210.167.222.189/3210.167.222.189 – 10.167.222.18910.167.222.189
6310.167.222.190/3210.167.222.190 – 10.167.222.19010.167.222.190
6410.167.222.191/3210.167.222.191 – 10.167.222.19110.167.222.191
6510.167.222.192/3210.167.222.192 – 10.167.222.19210.167.222.192
6610.167.222.193/3210.167.222.193 – 10.167.222.19310.167.222.193
6710.167.222.194/3210.167.222.194 – 10.167.222.19410.167.222.194
6810.167.222.195/3210.167.222.195 – 10.167.222.19510.167.222.195
6910.167.222.196/3210.167.222.196 – 10.167.222.19610.167.222.196
7010.167.222.197/3210.167.222.197 – 10.167.222.19710.167.222.197
7110.167.222.198/3210.167.222.198 – 10.167.222.19810.167.222.198
7210.167.222.199/3210.167.222.199 – 10.167.222.19910.167.222.199
7310.167.222.200/3210.167.222.200 – 10.167.222.20010.167.222.200
7410.167.222.201/3210.167.222.201 – 10.167.222.20110.167.222.201
7510.167.222.202/3210.167.222.202 – 10.167.222.20210.167.222.202
7610.167.222.203/3210.167.222.203 – 10.167.222.20310.167.222.203
7710.167.222.204/3210.167.222.204 – 10.167.222.20410.167.222.204
7810.167.222.205/3210.167.222.205 – 10.167.222.20510.167.222.205
7910.167.222.206/3210.167.222.206 – 10.167.222.20610.167.222.206
8010.167.222.207/3210.167.222.207 – 10.167.222.20710.167.222.207
8110.167.222.208/3210.167.222.208 – 10.167.222.20810.167.222.208
8210.167.222.209/3210.167.222.209 – 10.167.222.20910.167.222.209
8310.167.222.210/3210.167.222.210 – 10.167.222.21010.167.222.210
8410.167.222.211/3210.167.222.211 – 10.167.222.21110.167.222.211
8510.167.222.212/3210.167.222.212 – 10.167.222.21210.167.222.212
8610.167.222.213/3210.167.222.213 – 10.167.222.21310.167.222.213
8710.167.222.214/3210.167.222.214 – 10.167.222.21410.167.222.214
8810.167.222.215/3210.167.222.215 – 10.167.222.21510.167.222.215
8910.167.222.216/3210.167.222.216 – 10.167.222.21610.167.222.216
9010.167.222.217/3210.167.222.217 – 10.167.222.21710.167.222.217
9110.167.222.218/3210.167.222.218 – 10.167.222.21810.167.222.218
9210.167.222.219/3210.167.222.219 – 10.167.222.21910.167.222.219
9310.167.222.220/3210.167.222.220 – 10.167.222.22010.167.222.220
9410.167.222.221/3210.167.222.221 – 10.167.222.22110.167.222.221
9510.167.222.222/3210.167.222.222 – 10.167.222.22210.167.222.222
9610.167.222.223/3210.167.222.223 – 10.167.222.22310.167.222.223
9710.167.222.224/3210.167.222.224 – 10.167.222.22410.167.222.224
9810.167.222.225/3210.167.222.225 – 10.167.222.22510.167.222.225
9910.167.222.226/3210.167.222.226 – 10.167.222.22610.167.222.226
10010.167.222.227/3210.167.222.227 – 10.167.222.22710.167.222.227
10110.167.222.228/3210.167.222.228 – 10.167.222.22810.167.222.228
10210.167.222.229/3210.167.222.229 – 10.167.222.22910.167.222.229
10310.167.222.230/3210.167.222.230 – 10.167.222.23010.167.222.230
10410.167.222.231/3210.167.222.231 – 10.167.222.23110.167.222.231
10510.167.222.232/3210.167.222.232 – 10.167.222.23210.167.222.232
10610.167.222.233/3210.167.222.233 – 10.167.222.23310.167.222.233
10710.167.222.234/3210.167.222.234 – 10.167.222.23410.167.222.234
10810.167.222.235/3210.167.222.235 – 10.167.222.23510.167.222.235
10910.167.222.236/3210.167.222.236 – 10.167.222.23610.167.222.236
11010.167.222.237/3210.167.222.237 – 10.167.222.23710.167.222.237
11110.167.222.238/3210.167.222.238 – 10.167.222.23810.167.222.238
11210.167.222.239/3210.167.222.239 – 10.167.222.23910.167.222.239
11310.167.222.240/3210.167.222.240 – 10.167.222.24010.167.222.240
11410.167.222.241/3210.167.222.241 – 10.167.222.24110.167.222.241
11510.167.222.242/3210.167.222.242 – 10.167.222.24210.167.222.242
11610.167.222.243/3210.167.222.243 – 10.167.222.24310.167.222.243
11710.167.222.244/3210.167.222.244 – 10.167.222.24410.167.222.244
11810.167.222.245/3210.167.222.245 – 10.167.222.24510.167.222.245
11910.167.222.246/3210.167.222.246 – 10.167.222.24610.167.222.246
12010.167.222.247/3210.167.222.247 – 10.167.222.24710.167.222.247
12110.167.222.248/3210.167.222.248 – 10.167.222.24810.167.222.248
12210.167.222.249/3210.167.222.249 – 10.167.222.24910.167.222.249
12310.167.222.250/3210.167.222.250 – 10.167.222.25010.167.222.250
12410.167.222.251/3210.167.222.251 – 10.167.222.25110.167.222.251
12510.167.222.252/3210.167.222.252 – 10.167.222.25210.167.222.252
12610.167.222.253/3210.167.222.253 – 10.167.222.25310.167.222.253
12710.167.222.254/3210.167.222.254 – 10.167.222.25410.167.222.254
12810.167.222.255/3210.167.222.255 – 10.167.222.25510.167.222.255
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 →