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)10.201.32.0/24
network10.201.32.0/24
broadcast10.201.32.255
first host10.201.32.1
last host10.201.32.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.201.32.0/24
address00001010.11001001.00100000.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.11001001.00100000.00000000
broadcast00001010.11001001.00100000.11111111
green = network part, grey = host part
hex0x0ac92000
decimal180953088
reverse dns0.32.201.10.in-addr.arpa
ipv4-mapped::ffff:ac9:2000

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.201.32.0/3110.201.32.0 – 10.201.32.110.201.32.1
210.201.32.2/3110.201.32.2 – 10.201.32.310.201.32.3
310.201.32.4/3110.201.32.4 – 10.201.32.510.201.32.5
410.201.32.6/3110.201.32.6 – 10.201.32.710.201.32.7
510.201.32.8/3110.201.32.8 – 10.201.32.910.201.32.9
610.201.32.10/3110.201.32.10 – 10.201.32.1110.201.32.11
710.201.32.12/3110.201.32.12 – 10.201.32.1310.201.32.13
810.201.32.14/3110.201.32.14 – 10.201.32.1510.201.32.15
910.201.32.16/3110.201.32.16 – 10.201.32.1710.201.32.17
1010.201.32.18/3110.201.32.18 – 10.201.32.1910.201.32.19
1110.201.32.20/3110.201.32.20 – 10.201.32.2110.201.32.21
1210.201.32.22/3110.201.32.22 – 10.201.32.2310.201.32.23
1310.201.32.24/3110.201.32.24 – 10.201.32.2510.201.32.25
1410.201.32.26/3110.201.32.26 – 10.201.32.2710.201.32.27
1510.201.32.28/3110.201.32.28 – 10.201.32.2910.201.32.29
1610.201.32.30/3110.201.32.30 – 10.201.32.3110.201.32.31
1710.201.32.32/3110.201.32.32 – 10.201.32.3310.201.32.33
1810.201.32.34/3110.201.32.34 – 10.201.32.3510.201.32.35
1910.201.32.36/3110.201.32.36 – 10.201.32.3710.201.32.37
2010.201.32.38/3110.201.32.38 – 10.201.32.3910.201.32.39
2110.201.32.40/3110.201.32.40 – 10.201.32.4110.201.32.41
2210.201.32.42/3110.201.32.42 – 10.201.32.4310.201.32.43
2310.201.32.44/3110.201.32.44 – 10.201.32.4510.201.32.45
2410.201.32.46/3110.201.32.46 – 10.201.32.4710.201.32.47
2510.201.32.48/3110.201.32.48 – 10.201.32.4910.201.32.49
2610.201.32.50/3110.201.32.50 – 10.201.32.5110.201.32.51
2710.201.32.52/3110.201.32.52 – 10.201.32.5310.201.32.53
2810.201.32.54/3110.201.32.54 – 10.201.32.5510.201.32.55
2910.201.32.56/3110.201.32.56 – 10.201.32.5710.201.32.57
3010.201.32.58/3110.201.32.58 – 10.201.32.5910.201.32.59
3110.201.32.60/3110.201.32.60 – 10.201.32.6110.201.32.61
3210.201.32.62/3110.201.32.62 – 10.201.32.6310.201.32.63
3310.201.32.64/3110.201.32.64 – 10.201.32.6510.201.32.65
3410.201.32.66/3110.201.32.66 – 10.201.32.6710.201.32.67
3510.201.32.68/3110.201.32.68 – 10.201.32.6910.201.32.69
3610.201.32.70/3110.201.32.70 – 10.201.32.7110.201.32.71
3710.201.32.72/3110.201.32.72 – 10.201.32.7310.201.32.73
3810.201.32.74/3110.201.32.74 – 10.201.32.7510.201.32.75
3910.201.32.76/3110.201.32.76 – 10.201.32.7710.201.32.77
4010.201.32.78/3110.201.32.78 – 10.201.32.7910.201.32.79
4110.201.32.80/3110.201.32.80 – 10.201.32.8110.201.32.81
4210.201.32.82/3110.201.32.82 – 10.201.32.8310.201.32.83
4310.201.32.84/3110.201.32.84 – 10.201.32.8510.201.32.85
4410.201.32.86/3110.201.32.86 – 10.201.32.8710.201.32.87
4510.201.32.88/3110.201.32.88 – 10.201.32.8910.201.32.89
4610.201.32.90/3110.201.32.90 – 10.201.32.9110.201.32.91
4710.201.32.92/3110.201.32.92 – 10.201.32.9310.201.32.93
4810.201.32.94/3110.201.32.94 – 10.201.32.9510.201.32.95
4910.201.32.96/3110.201.32.96 – 10.201.32.9710.201.32.97
5010.201.32.98/3110.201.32.98 – 10.201.32.9910.201.32.99
5110.201.32.100/3110.201.32.100 – 10.201.32.10110.201.32.101
5210.201.32.102/3110.201.32.102 – 10.201.32.10310.201.32.103
5310.201.32.104/3110.201.32.104 – 10.201.32.10510.201.32.105
5410.201.32.106/3110.201.32.106 – 10.201.32.10710.201.32.107
5510.201.32.108/3110.201.32.108 – 10.201.32.10910.201.32.109
5610.201.32.110/3110.201.32.110 – 10.201.32.11110.201.32.111
5710.201.32.112/3110.201.32.112 – 10.201.32.11310.201.32.113
5810.201.32.114/3110.201.32.114 – 10.201.32.11510.201.32.115
5910.201.32.116/3110.201.32.116 – 10.201.32.11710.201.32.117
6010.201.32.118/3110.201.32.118 – 10.201.32.11910.201.32.119
6110.201.32.120/3110.201.32.120 – 10.201.32.12110.201.32.121
6210.201.32.122/3110.201.32.122 – 10.201.32.12310.201.32.123
6310.201.32.124/3110.201.32.124 – 10.201.32.12510.201.32.125
6410.201.32.126/3110.201.32.126 – 10.201.32.12710.201.32.127
6510.201.32.128/3110.201.32.128 – 10.201.32.12910.201.32.129
6610.201.32.130/3110.201.32.130 – 10.201.32.13110.201.32.131
6710.201.32.132/3110.201.32.132 – 10.201.32.13310.201.32.133
6810.201.32.134/3110.201.32.134 – 10.201.32.13510.201.32.135
6910.201.32.136/3110.201.32.136 – 10.201.32.13710.201.32.137
7010.201.32.138/3110.201.32.138 – 10.201.32.13910.201.32.139
7110.201.32.140/3110.201.32.140 – 10.201.32.14110.201.32.141
7210.201.32.142/3110.201.32.142 – 10.201.32.14310.201.32.143
7310.201.32.144/3110.201.32.144 – 10.201.32.14510.201.32.145
7410.201.32.146/3110.201.32.146 – 10.201.32.14710.201.32.147
7510.201.32.148/3110.201.32.148 – 10.201.32.14910.201.32.149
7610.201.32.150/3110.201.32.150 – 10.201.32.15110.201.32.151
7710.201.32.152/3110.201.32.152 – 10.201.32.15310.201.32.153
7810.201.32.154/3110.201.32.154 – 10.201.32.15510.201.32.155
7910.201.32.156/3110.201.32.156 – 10.201.32.15710.201.32.157
8010.201.32.158/3110.201.32.158 – 10.201.32.15910.201.32.159
8110.201.32.160/3110.201.32.160 – 10.201.32.16110.201.32.161
8210.201.32.162/3110.201.32.162 – 10.201.32.16310.201.32.163
8310.201.32.164/3110.201.32.164 – 10.201.32.16510.201.32.165
8410.201.32.166/3110.201.32.166 – 10.201.32.16710.201.32.167
8510.201.32.168/3110.201.32.168 – 10.201.32.16910.201.32.169
8610.201.32.170/3110.201.32.170 – 10.201.32.17110.201.32.171
8710.201.32.172/3110.201.32.172 – 10.201.32.17310.201.32.173
8810.201.32.174/3110.201.32.174 – 10.201.32.17510.201.32.175
8910.201.32.176/3110.201.32.176 – 10.201.32.17710.201.32.177
9010.201.32.178/3110.201.32.178 – 10.201.32.17910.201.32.179
9110.201.32.180/3110.201.32.180 – 10.201.32.18110.201.32.181
9210.201.32.182/3110.201.32.182 – 10.201.32.18310.201.32.183
9310.201.32.184/3110.201.32.184 – 10.201.32.18510.201.32.185
9410.201.32.186/3110.201.32.186 – 10.201.32.18710.201.32.187
9510.201.32.188/3110.201.32.188 – 10.201.32.18910.201.32.189
9610.201.32.190/3110.201.32.190 – 10.201.32.19110.201.32.191
9710.201.32.192/3110.201.32.192 – 10.201.32.19310.201.32.193
9810.201.32.194/3110.201.32.194 – 10.201.32.19510.201.32.195
9910.201.32.196/3110.201.32.196 – 10.201.32.19710.201.32.197
10010.201.32.198/3110.201.32.198 – 10.201.32.19910.201.32.199
10110.201.32.200/3110.201.32.200 – 10.201.32.20110.201.32.201
10210.201.32.202/3110.201.32.202 – 10.201.32.20310.201.32.203
10310.201.32.204/3110.201.32.204 – 10.201.32.20510.201.32.205
10410.201.32.206/3110.201.32.206 – 10.201.32.20710.201.32.207
10510.201.32.208/3110.201.32.208 – 10.201.32.20910.201.32.209
10610.201.32.210/3110.201.32.210 – 10.201.32.21110.201.32.211
10710.201.32.212/3110.201.32.212 – 10.201.32.21310.201.32.213
10810.201.32.214/3110.201.32.214 – 10.201.32.21510.201.32.215
10910.201.32.216/3110.201.32.216 – 10.201.32.21710.201.32.217
11010.201.32.218/3110.201.32.218 – 10.201.32.21910.201.32.219
11110.201.32.220/3110.201.32.220 – 10.201.32.22110.201.32.221
11210.201.32.222/3110.201.32.222 – 10.201.32.22310.201.32.223
11310.201.32.224/3110.201.32.224 – 10.201.32.22510.201.32.225
11410.201.32.226/3110.201.32.226 – 10.201.32.22710.201.32.227
11510.201.32.228/3110.201.32.228 – 10.201.32.22910.201.32.229
11610.201.32.230/3110.201.32.230 – 10.201.32.23110.201.32.231
11710.201.32.232/3110.201.32.232 – 10.201.32.23310.201.32.233
11810.201.32.234/3110.201.32.234 – 10.201.32.23510.201.32.235
11910.201.32.236/3110.201.32.236 – 10.201.32.23710.201.32.237
12010.201.32.238/3110.201.32.238 – 10.201.32.23910.201.32.239
12110.201.32.240/3110.201.32.240 – 10.201.32.24110.201.32.241
12210.201.32.242/3110.201.32.242 – 10.201.32.24310.201.32.243
12310.201.32.244/3110.201.32.244 – 10.201.32.24510.201.32.245
12410.201.32.246/3110.201.32.246 – 10.201.32.24710.201.32.247
12510.201.32.248/3110.201.32.248 – 10.201.32.24910.201.32.249
12610.201.32.250/3110.201.32.250 – 10.201.32.25110.201.32.251
12710.201.32.252/3110.201.32.252 – 10.201.32.25310.201.32.253
12810.201.32.254/3110.201.32.254 – 10.201.32.25510.201.32.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/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-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 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 →