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)10.131.32.0/22
network10.131.32.0/22
broadcast10.131.35.255
first host10.131.32.1
last host10.131.35.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.131.32.0/22
address00001010.10000011.00100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10000011.00100000.00000000
broadcast00001010.10000011.00100011.11111111
green = network part, grey = host part
hex0x0a832000
decimal176365568
reverse dns0.32.131.10.in-addr.arpa
ipv4-mapped::ffff:a83:2000

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.131.32.0/2910.131.32.1 – 10.131.32.610.131.32.7
210.131.32.8/2910.131.32.9 – 10.131.32.1410.131.32.15
310.131.32.16/2910.131.32.17 – 10.131.32.2210.131.32.23
410.131.32.24/2910.131.32.25 – 10.131.32.3010.131.32.31
510.131.32.32/2910.131.32.33 – 10.131.32.3810.131.32.39
610.131.32.40/2910.131.32.41 – 10.131.32.4610.131.32.47
710.131.32.48/2910.131.32.49 – 10.131.32.5410.131.32.55
810.131.32.56/2910.131.32.57 – 10.131.32.6210.131.32.63
910.131.32.64/2910.131.32.65 – 10.131.32.7010.131.32.71
1010.131.32.72/2910.131.32.73 – 10.131.32.7810.131.32.79
1110.131.32.80/2910.131.32.81 – 10.131.32.8610.131.32.87
1210.131.32.88/2910.131.32.89 – 10.131.32.9410.131.32.95
1310.131.32.96/2910.131.32.97 – 10.131.32.10210.131.32.103
1410.131.32.104/2910.131.32.105 – 10.131.32.11010.131.32.111
1510.131.32.112/2910.131.32.113 – 10.131.32.11810.131.32.119
1610.131.32.120/2910.131.32.121 – 10.131.32.12610.131.32.127
1710.131.32.128/2910.131.32.129 – 10.131.32.13410.131.32.135
1810.131.32.136/2910.131.32.137 – 10.131.32.14210.131.32.143
1910.131.32.144/2910.131.32.145 – 10.131.32.15010.131.32.151
2010.131.32.152/2910.131.32.153 – 10.131.32.15810.131.32.159
2110.131.32.160/2910.131.32.161 – 10.131.32.16610.131.32.167
2210.131.32.168/2910.131.32.169 – 10.131.32.17410.131.32.175
2310.131.32.176/2910.131.32.177 – 10.131.32.18210.131.32.183
2410.131.32.184/2910.131.32.185 – 10.131.32.19010.131.32.191
2510.131.32.192/2910.131.32.193 – 10.131.32.19810.131.32.199
2610.131.32.200/2910.131.32.201 – 10.131.32.20610.131.32.207
2710.131.32.208/2910.131.32.209 – 10.131.32.21410.131.32.215
2810.131.32.216/2910.131.32.217 – 10.131.32.22210.131.32.223
2910.131.32.224/2910.131.32.225 – 10.131.32.23010.131.32.231
3010.131.32.232/2910.131.32.233 – 10.131.32.23810.131.32.239
3110.131.32.240/2910.131.32.241 – 10.131.32.24610.131.32.247
3210.131.32.248/2910.131.32.249 – 10.131.32.25410.131.32.255
3310.131.33.0/2910.131.33.1 – 10.131.33.610.131.33.7
3410.131.33.8/2910.131.33.9 – 10.131.33.1410.131.33.15
3510.131.33.16/2910.131.33.17 – 10.131.33.2210.131.33.23
3610.131.33.24/2910.131.33.25 – 10.131.33.3010.131.33.31
3710.131.33.32/2910.131.33.33 – 10.131.33.3810.131.33.39
3810.131.33.40/2910.131.33.41 – 10.131.33.4610.131.33.47
3910.131.33.48/2910.131.33.49 – 10.131.33.5410.131.33.55
4010.131.33.56/2910.131.33.57 – 10.131.33.6210.131.33.63
4110.131.33.64/2910.131.33.65 – 10.131.33.7010.131.33.71
4210.131.33.72/2910.131.33.73 – 10.131.33.7810.131.33.79
4310.131.33.80/2910.131.33.81 – 10.131.33.8610.131.33.87
4410.131.33.88/2910.131.33.89 – 10.131.33.9410.131.33.95
4510.131.33.96/2910.131.33.97 – 10.131.33.10210.131.33.103
4610.131.33.104/2910.131.33.105 – 10.131.33.11010.131.33.111
4710.131.33.112/2910.131.33.113 – 10.131.33.11810.131.33.119
4810.131.33.120/2910.131.33.121 – 10.131.33.12610.131.33.127
4910.131.33.128/2910.131.33.129 – 10.131.33.13410.131.33.135
5010.131.33.136/2910.131.33.137 – 10.131.33.14210.131.33.143
5110.131.33.144/2910.131.33.145 – 10.131.33.15010.131.33.151
5210.131.33.152/2910.131.33.153 – 10.131.33.15810.131.33.159
5310.131.33.160/2910.131.33.161 – 10.131.33.16610.131.33.167
5410.131.33.168/2910.131.33.169 – 10.131.33.17410.131.33.175
5510.131.33.176/2910.131.33.177 – 10.131.33.18210.131.33.183
5610.131.33.184/2910.131.33.185 – 10.131.33.19010.131.33.191
5710.131.33.192/2910.131.33.193 – 10.131.33.19810.131.33.199
5810.131.33.200/2910.131.33.201 – 10.131.33.20610.131.33.207
5910.131.33.208/2910.131.33.209 – 10.131.33.21410.131.33.215
6010.131.33.216/2910.131.33.217 – 10.131.33.22210.131.33.223
6110.131.33.224/2910.131.33.225 – 10.131.33.23010.131.33.231
6210.131.33.232/2910.131.33.233 – 10.131.33.23810.131.33.239
6310.131.33.240/2910.131.33.241 – 10.131.33.24610.131.33.247
6410.131.33.248/2910.131.33.249 – 10.131.33.25410.131.33.255
6510.131.34.0/2910.131.34.1 – 10.131.34.610.131.34.7
6610.131.34.8/2910.131.34.9 – 10.131.34.1410.131.34.15
6710.131.34.16/2910.131.34.17 – 10.131.34.2210.131.34.23
6810.131.34.24/2910.131.34.25 – 10.131.34.3010.131.34.31
6910.131.34.32/2910.131.34.33 – 10.131.34.3810.131.34.39
7010.131.34.40/2910.131.34.41 – 10.131.34.4610.131.34.47
7110.131.34.48/2910.131.34.49 – 10.131.34.5410.131.34.55
7210.131.34.56/2910.131.34.57 – 10.131.34.6210.131.34.63
7310.131.34.64/2910.131.34.65 – 10.131.34.7010.131.34.71
7410.131.34.72/2910.131.34.73 – 10.131.34.7810.131.34.79
7510.131.34.80/2910.131.34.81 – 10.131.34.8610.131.34.87
7610.131.34.88/2910.131.34.89 – 10.131.34.9410.131.34.95
7710.131.34.96/2910.131.34.97 – 10.131.34.10210.131.34.103
7810.131.34.104/2910.131.34.105 – 10.131.34.11010.131.34.111
7910.131.34.112/2910.131.34.113 – 10.131.34.11810.131.34.119
8010.131.34.120/2910.131.34.121 – 10.131.34.12610.131.34.127
8110.131.34.128/2910.131.34.129 – 10.131.34.13410.131.34.135
8210.131.34.136/2910.131.34.137 – 10.131.34.14210.131.34.143
8310.131.34.144/2910.131.34.145 – 10.131.34.15010.131.34.151
8410.131.34.152/2910.131.34.153 – 10.131.34.15810.131.34.159
8510.131.34.160/2910.131.34.161 – 10.131.34.16610.131.34.167
8610.131.34.168/2910.131.34.169 – 10.131.34.17410.131.34.175
8710.131.34.176/2910.131.34.177 – 10.131.34.18210.131.34.183
8810.131.34.184/2910.131.34.185 – 10.131.34.19010.131.34.191
8910.131.34.192/2910.131.34.193 – 10.131.34.19810.131.34.199
9010.131.34.200/2910.131.34.201 – 10.131.34.20610.131.34.207
9110.131.34.208/2910.131.34.209 – 10.131.34.21410.131.34.215
9210.131.34.216/2910.131.34.217 – 10.131.34.22210.131.34.223
9310.131.34.224/2910.131.34.225 – 10.131.34.23010.131.34.231
9410.131.34.232/2910.131.34.233 – 10.131.34.23810.131.34.239
9510.131.34.240/2910.131.34.241 – 10.131.34.24610.131.34.247
9610.131.34.248/2910.131.34.249 – 10.131.34.25410.131.34.255
9710.131.35.0/2910.131.35.1 – 10.131.35.610.131.35.7
9810.131.35.8/2910.131.35.9 – 10.131.35.1410.131.35.15
9910.131.35.16/2910.131.35.17 – 10.131.35.2210.131.35.23
10010.131.35.24/2910.131.35.25 – 10.131.35.3010.131.35.31
10110.131.35.32/2910.131.35.33 – 10.131.35.3810.131.35.39
10210.131.35.40/2910.131.35.41 – 10.131.35.4610.131.35.47
10310.131.35.48/2910.131.35.49 – 10.131.35.5410.131.35.55
10410.131.35.56/2910.131.35.57 – 10.131.35.6210.131.35.63
10510.131.35.64/2910.131.35.65 – 10.131.35.7010.131.35.71
10610.131.35.72/2910.131.35.73 – 10.131.35.7810.131.35.79
10710.131.35.80/2910.131.35.81 – 10.131.35.8610.131.35.87
10810.131.35.88/2910.131.35.89 – 10.131.35.9410.131.35.95
10910.131.35.96/2910.131.35.97 – 10.131.35.10210.131.35.103
11010.131.35.104/2910.131.35.105 – 10.131.35.11010.131.35.111
11110.131.35.112/2910.131.35.113 – 10.131.35.11810.131.35.119
11210.131.35.120/2910.131.35.121 – 10.131.35.12610.131.35.127
11310.131.35.128/2910.131.35.129 – 10.131.35.13410.131.35.135
11410.131.35.136/2910.131.35.137 – 10.131.35.14210.131.35.143
11510.131.35.144/2910.131.35.145 – 10.131.35.15010.131.35.151
11610.131.35.152/2910.131.35.153 – 10.131.35.15810.131.35.159
11710.131.35.160/2910.131.35.161 – 10.131.35.16610.131.35.167
11810.131.35.168/2910.131.35.169 – 10.131.35.17410.131.35.175
11910.131.35.176/2910.131.35.177 – 10.131.35.18210.131.35.183
12010.131.35.184/2910.131.35.185 – 10.131.35.19010.131.35.191
12110.131.35.192/2910.131.35.193 – 10.131.35.19810.131.35.199
12210.131.35.200/2910.131.35.201 – 10.131.35.20610.131.35.207
12310.131.35.208/2910.131.35.209 – 10.131.35.21410.131.35.215
12410.131.35.216/2910.131.35.217 – 10.131.35.22210.131.35.223
12510.131.35.224/2910.131.35.225 – 10.131.35.23010.131.35.231
12610.131.35.232/2910.131.35.233 – 10.131.35.23810.131.35.239
12710.131.35.240/2910.131.35.241 – 10.131.35.24610.131.35.247
12810.131.35.248/2910.131.35.249 – 10.131.35.25410.131.35.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /22
/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-
/22255.255.252.01,0241,0221
/23255.255.254.05125102 split →
/24255.255.255.02562544 split →
/25255.255.255.1281281268 split →
/26255.255.255.192646216 split →
/27255.255.255.224323032 split →
/28255.255.255.240161464 split →
/29255.255.255.24886128 split →
/30255.255.255.25242256 split →
/31255.255.255.25422512 split →
/32255.255.255.255111,024 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 →