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)10.167.223.128/25
network10.167.223.128/25
broadcast10.167.223.255
first host10.167.223.129
last host10.167.223.254
subnet mask255.255.255.128
wildcard0.0.0.127
addresses128
usable hosts126
classA
ipcalc 10.167.223.128/25
address00001010.10100111.11011111.10000000
subnet mask11111111.11111111.11111111.10000000
network00001010.10100111.11011111.10000000
broadcast00001010.10100111.11011111.11111111
green = network part, grey = host part
hex0x0aa7df80
decimal178773888
reverse dns128.223.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:df80

/25 split into /32 · 128 subnets

close ×
#networkhost rangebroadcast
110.167.223.128/3210.167.223.128 – 10.167.223.12810.167.223.128
210.167.223.129/3210.167.223.129 – 10.167.223.12910.167.223.129
310.167.223.130/3210.167.223.130 – 10.167.223.13010.167.223.130
410.167.223.131/3210.167.223.131 – 10.167.223.13110.167.223.131
510.167.223.132/3210.167.223.132 – 10.167.223.13210.167.223.132
610.167.223.133/3210.167.223.133 – 10.167.223.13310.167.223.133
710.167.223.134/3210.167.223.134 – 10.167.223.13410.167.223.134
810.167.223.135/3210.167.223.135 – 10.167.223.13510.167.223.135
910.167.223.136/3210.167.223.136 – 10.167.223.13610.167.223.136
1010.167.223.137/3210.167.223.137 – 10.167.223.13710.167.223.137
1110.167.223.138/3210.167.223.138 – 10.167.223.13810.167.223.138
1210.167.223.139/3210.167.223.139 – 10.167.223.13910.167.223.139
1310.167.223.140/3210.167.223.140 – 10.167.223.14010.167.223.140
1410.167.223.141/3210.167.223.141 – 10.167.223.14110.167.223.141
1510.167.223.142/3210.167.223.142 – 10.167.223.14210.167.223.142
1610.167.223.143/3210.167.223.143 – 10.167.223.14310.167.223.143
1710.167.223.144/3210.167.223.144 – 10.167.223.14410.167.223.144
1810.167.223.145/3210.167.223.145 – 10.167.223.14510.167.223.145
1910.167.223.146/3210.167.223.146 – 10.167.223.14610.167.223.146
2010.167.223.147/3210.167.223.147 – 10.167.223.14710.167.223.147
2110.167.223.148/3210.167.223.148 – 10.167.223.14810.167.223.148
2210.167.223.149/3210.167.223.149 – 10.167.223.14910.167.223.149
2310.167.223.150/3210.167.223.150 – 10.167.223.15010.167.223.150
2410.167.223.151/3210.167.223.151 – 10.167.223.15110.167.223.151
2510.167.223.152/3210.167.223.152 – 10.167.223.15210.167.223.152
2610.167.223.153/3210.167.223.153 – 10.167.223.15310.167.223.153
2710.167.223.154/3210.167.223.154 – 10.167.223.15410.167.223.154
2810.167.223.155/3210.167.223.155 – 10.167.223.15510.167.223.155
2910.167.223.156/3210.167.223.156 – 10.167.223.15610.167.223.156
3010.167.223.157/3210.167.223.157 – 10.167.223.15710.167.223.157
3110.167.223.158/3210.167.223.158 – 10.167.223.15810.167.223.158
3210.167.223.159/3210.167.223.159 – 10.167.223.15910.167.223.159
3310.167.223.160/3210.167.223.160 – 10.167.223.16010.167.223.160
3410.167.223.161/3210.167.223.161 – 10.167.223.16110.167.223.161
3510.167.223.162/3210.167.223.162 – 10.167.223.16210.167.223.162
3610.167.223.163/3210.167.223.163 – 10.167.223.16310.167.223.163
3710.167.223.164/3210.167.223.164 – 10.167.223.16410.167.223.164
3810.167.223.165/3210.167.223.165 – 10.167.223.16510.167.223.165
3910.167.223.166/3210.167.223.166 – 10.167.223.16610.167.223.166
4010.167.223.167/3210.167.223.167 – 10.167.223.16710.167.223.167
4110.167.223.168/3210.167.223.168 – 10.167.223.16810.167.223.168
4210.167.223.169/3210.167.223.169 – 10.167.223.16910.167.223.169
4310.167.223.170/3210.167.223.170 – 10.167.223.17010.167.223.170
4410.167.223.171/3210.167.223.171 – 10.167.223.17110.167.223.171
4510.167.223.172/3210.167.223.172 – 10.167.223.17210.167.223.172
4610.167.223.173/3210.167.223.173 – 10.167.223.17310.167.223.173
4710.167.223.174/3210.167.223.174 – 10.167.223.17410.167.223.174
4810.167.223.175/3210.167.223.175 – 10.167.223.17510.167.223.175
4910.167.223.176/3210.167.223.176 – 10.167.223.17610.167.223.176
5010.167.223.177/3210.167.223.177 – 10.167.223.17710.167.223.177
5110.167.223.178/3210.167.223.178 – 10.167.223.17810.167.223.178
5210.167.223.179/3210.167.223.179 – 10.167.223.17910.167.223.179
5310.167.223.180/3210.167.223.180 – 10.167.223.18010.167.223.180
5410.167.223.181/3210.167.223.181 – 10.167.223.18110.167.223.181
5510.167.223.182/3210.167.223.182 – 10.167.223.18210.167.223.182
5610.167.223.183/3210.167.223.183 – 10.167.223.18310.167.223.183
5710.167.223.184/3210.167.223.184 – 10.167.223.18410.167.223.184
5810.167.223.185/3210.167.223.185 – 10.167.223.18510.167.223.185
5910.167.223.186/3210.167.223.186 – 10.167.223.18610.167.223.186
6010.167.223.187/3210.167.223.187 – 10.167.223.18710.167.223.187
6110.167.223.188/3210.167.223.188 – 10.167.223.18810.167.223.188
6210.167.223.189/3210.167.223.189 – 10.167.223.18910.167.223.189
6310.167.223.190/3210.167.223.190 – 10.167.223.19010.167.223.190
6410.167.223.191/3210.167.223.191 – 10.167.223.19110.167.223.191
6510.167.223.192/3210.167.223.192 – 10.167.223.19210.167.223.192
6610.167.223.193/3210.167.223.193 – 10.167.223.19310.167.223.193
6710.167.223.194/3210.167.223.194 – 10.167.223.19410.167.223.194
6810.167.223.195/3210.167.223.195 – 10.167.223.19510.167.223.195
6910.167.223.196/3210.167.223.196 – 10.167.223.19610.167.223.196
7010.167.223.197/3210.167.223.197 – 10.167.223.19710.167.223.197
7110.167.223.198/3210.167.223.198 – 10.167.223.19810.167.223.198
7210.167.223.199/3210.167.223.199 – 10.167.223.19910.167.223.199
7310.167.223.200/3210.167.223.200 – 10.167.223.20010.167.223.200
7410.167.223.201/3210.167.223.201 – 10.167.223.20110.167.223.201
7510.167.223.202/3210.167.223.202 – 10.167.223.20210.167.223.202
7610.167.223.203/3210.167.223.203 – 10.167.223.20310.167.223.203
7710.167.223.204/3210.167.223.204 – 10.167.223.20410.167.223.204
7810.167.223.205/3210.167.223.205 – 10.167.223.20510.167.223.205
7910.167.223.206/3210.167.223.206 – 10.167.223.20610.167.223.206
8010.167.223.207/3210.167.223.207 – 10.167.223.20710.167.223.207
8110.167.223.208/3210.167.223.208 – 10.167.223.20810.167.223.208
8210.167.223.209/3210.167.223.209 – 10.167.223.20910.167.223.209
8310.167.223.210/3210.167.223.210 – 10.167.223.21010.167.223.210
8410.167.223.211/3210.167.223.211 – 10.167.223.21110.167.223.211
8510.167.223.212/3210.167.223.212 – 10.167.223.21210.167.223.212
8610.167.223.213/3210.167.223.213 – 10.167.223.21310.167.223.213
8710.167.223.214/3210.167.223.214 – 10.167.223.21410.167.223.214
8810.167.223.215/3210.167.223.215 – 10.167.223.21510.167.223.215
8910.167.223.216/3210.167.223.216 – 10.167.223.21610.167.223.216
9010.167.223.217/3210.167.223.217 – 10.167.223.21710.167.223.217
9110.167.223.218/3210.167.223.218 – 10.167.223.21810.167.223.218
9210.167.223.219/3210.167.223.219 – 10.167.223.21910.167.223.219
9310.167.223.220/3210.167.223.220 – 10.167.223.22010.167.223.220
9410.167.223.221/3210.167.223.221 – 10.167.223.22110.167.223.221
9510.167.223.222/3210.167.223.222 – 10.167.223.22210.167.223.222
9610.167.223.223/3210.167.223.223 – 10.167.223.22310.167.223.223
9710.167.223.224/3210.167.223.224 – 10.167.223.22410.167.223.224
9810.167.223.225/3210.167.223.225 – 10.167.223.22510.167.223.225
9910.167.223.226/3210.167.223.226 – 10.167.223.22610.167.223.226
10010.167.223.227/3210.167.223.227 – 10.167.223.22710.167.223.227
10110.167.223.228/3210.167.223.228 – 10.167.223.22810.167.223.228
10210.167.223.229/3210.167.223.229 – 10.167.223.22910.167.223.229
10310.167.223.230/3210.167.223.230 – 10.167.223.23010.167.223.230
10410.167.223.231/3210.167.223.231 – 10.167.223.23110.167.223.231
10510.167.223.232/3210.167.223.232 – 10.167.223.23210.167.223.232
10610.167.223.233/3210.167.223.233 – 10.167.223.23310.167.223.233
10710.167.223.234/3210.167.223.234 – 10.167.223.23410.167.223.234
10810.167.223.235/3210.167.223.235 – 10.167.223.23510.167.223.235
10910.167.223.236/3210.167.223.236 – 10.167.223.23610.167.223.236
11010.167.223.237/3210.167.223.237 – 10.167.223.23710.167.223.237
11110.167.223.238/3210.167.223.238 – 10.167.223.23810.167.223.238
11210.167.223.239/3210.167.223.239 – 10.167.223.23910.167.223.239
11310.167.223.240/3210.167.223.240 – 10.167.223.24010.167.223.240
11410.167.223.241/3210.167.223.241 – 10.167.223.24110.167.223.241
11510.167.223.242/3210.167.223.242 – 10.167.223.24210.167.223.242
11610.167.223.243/3210.167.223.243 – 10.167.223.24310.167.223.243
11710.167.223.244/3210.167.223.244 – 10.167.223.24410.167.223.244
11810.167.223.245/3210.167.223.245 – 10.167.223.24510.167.223.245
11910.167.223.246/3210.167.223.246 – 10.167.223.24610.167.223.246
12010.167.223.247/3210.167.223.247 – 10.167.223.24710.167.223.247
12110.167.223.248/3210.167.223.248 – 10.167.223.24810.167.223.248
12210.167.223.249/3210.167.223.249 – 10.167.223.24910.167.223.249
12310.167.223.250/3210.167.223.250 – 10.167.223.25010.167.223.250
12410.167.223.251/3210.167.223.251 – 10.167.223.25110.167.223.251
12510.167.223.252/3210.167.223.252 – 10.167.223.25210.167.223.252
12610.167.223.253/3210.167.223.253 – 10.167.223.25310.167.223.253
12710.167.223.254/3210.167.223.254 – 10.167.223.25410.167.223.254
12810.167.223.255/3210.167.223.255 – 10.167.223.25510.167.223.255
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 →