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)10.131.24.0/22
network10.131.24.0/22
broadcast10.131.27.255
first host10.131.24.1
last host10.131.27.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.131.24.0/22
address00001010.10000011.00011000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10000011.00011000.00000000
broadcast00001010.10000011.00011011.11111111
green = network part, grey = host part
hex0x0a831800
decimal176363520
reverse dns0.24.131.10.in-addr.arpa
ipv4-mapped::ffff:a83:1800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.131.24.0/2910.131.24.1 – 10.131.24.610.131.24.7
210.131.24.8/2910.131.24.9 – 10.131.24.1410.131.24.15
310.131.24.16/2910.131.24.17 – 10.131.24.2210.131.24.23
410.131.24.24/2910.131.24.25 – 10.131.24.3010.131.24.31
510.131.24.32/2910.131.24.33 – 10.131.24.3810.131.24.39
610.131.24.40/2910.131.24.41 – 10.131.24.4610.131.24.47
710.131.24.48/2910.131.24.49 – 10.131.24.5410.131.24.55
810.131.24.56/2910.131.24.57 – 10.131.24.6210.131.24.63
910.131.24.64/2910.131.24.65 – 10.131.24.7010.131.24.71
1010.131.24.72/2910.131.24.73 – 10.131.24.7810.131.24.79
1110.131.24.80/2910.131.24.81 – 10.131.24.8610.131.24.87
1210.131.24.88/2910.131.24.89 – 10.131.24.9410.131.24.95
1310.131.24.96/2910.131.24.97 – 10.131.24.10210.131.24.103
1410.131.24.104/2910.131.24.105 – 10.131.24.11010.131.24.111
1510.131.24.112/2910.131.24.113 – 10.131.24.11810.131.24.119
1610.131.24.120/2910.131.24.121 – 10.131.24.12610.131.24.127
1710.131.24.128/2910.131.24.129 – 10.131.24.13410.131.24.135
1810.131.24.136/2910.131.24.137 – 10.131.24.14210.131.24.143
1910.131.24.144/2910.131.24.145 – 10.131.24.15010.131.24.151
2010.131.24.152/2910.131.24.153 – 10.131.24.15810.131.24.159
2110.131.24.160/2910.131.24.161 – 10.131.24.16610.131.24.167
2210.131.24.168/2910.131.24.169 – 10.131.24.17410.131.24.175
2310.131.24.176/2910.131.24.177 – 10.131.24.18210.131.24.183
2410.131.24.184/2910.131.24.185 – 10.131.24.19010.131.24.191
2510.131.24.192/2910.131.24.193 – 10.131.24.19810.131.24.199
2610.131.24.200/2910.131.24.201 – 10.131.24.20610.131.24.207
2710.131.24.208/2910.131.24.209 – 10.131.24.21410.131.24.215
2810.131.24.216/2910.131.24.217 – 10.131.24.22210.131.24.223
2910.131.24.224/2910.131.24.225 – 10.131.24.23010.131.24.231
3010.131.24.232/2910.131.24.233 – 10.131.24.23810.131.24.239
3110.131.24.240/2910.131.24.241 – 10.131.24.24610.131.24.247
3210.131.24.248/2910.131.24.249 – 10.131.24.25410.131.24.255
3310.131.25.0/2910.131.25.1 – 10.131.25.610.131.25.7
3410.131.25.8/2910.131.25.9 – 10.131.25.1410.131.25.15
3510.131.25.16/2910.131.25.17 – 10.131.25.2210.131.25.23
3610.131.25.24/2910.131.25.25 – 10.131.25.3010.131.25.31
3710.131.25.32/2910.131.25.33 – 10.131.25.3810.131.25.39
3810.131.25.40/2910.131.25.41 – 10.131.25.4610.131.25.47
3910.131.25.48/2910.131.25.49 – 10.131.25.5410.131.25.55
4010.131.25.56/2910.131.25.57 – 10.131.25.6210.131.25.63
4110.131.25.64/2910.131.25.65 – 10.131.25.7010.131.25.71
4210.131.25.72/2910.131.25.73 – 10.131.25.7810.131.25.79
4310.131.25.80/2910.131.25.81 – 10.131.25.8610.131.25.87
4410.131.25.88/2910.131.25.89 – 10.131.25.9410.131.25.95
4510.131.25.96/2910.131.25.97 – 10.131.25.10210.131.25.103
4610.131.25.104/2910.131.25.105 – 10.131.25.11010.131.25.111
4710.131.25.112/2910.131.25.113 – 10.131.25.11810.131.25.119
4810.131.25.120/2910.131.25.121 – 10.131.25.12610.131.25.127
4910.131.25.128/2910.131.25.129 – 10.131.25.13410.131.25.135
5010.131.25.136/2910.131.25.137 – 10.131.25.14210.131.25.143
5110.131.25.144/2910.131.25.145 – 10.131.25.15010.131.25.151
5210.131.25.152/2910.131.25.153 – 10.131.25.15810.131.25.159
5310.131.25.160/2910.131.25.161 – 10.131.25.16610.131.25.167
5410.131.25.168/2910.131.25.169 – 10.131.25.17410.131.25.175
5510.131.25.176/2910.131.25.177 – 10.131.25.18210.131.25.183
5610.131.25.184/2910.131.25.185 – 10.131.25.19010.131.25.191
5710.131.25.192/2910.131.25.193 – 10.131.25.19810.131.25.199
5810.131.25.200/2910.131.25.201 – 10.131.25.20610.131.25.207
5910.131.25.208/2910.131.25.209 – 10.131.25.21410.131.25.215
6010.131.25.216/2910.131.25.217 – 10.131.25.22210.131.25.223
6110.131.25.224/2910.131.25.225 – 10.131.25.23010.131.25.231
6210.131.25.232/2910.131.25.233 – 10.131.25.23810.131.25.239
6310.131.25.240/2910.131.25.241 – 10.131.25.24610.131.25.247
6410.131.25.248/2910.131.25.249 – 10.131.25.25410.131.25.255
6510.131.26.0/2910.131.26.1 – 10.131.26.610.131.26.7
6610.131.26.8/2910.131.26.9 – 10.131.26.1410.131.26.15
6710.131.26.16/2910.131.26.17 – 10.131.26.2210.131.26.23
6810.131.26.24/2910.131.26.25 – 10.131.26.3010.131.26.31
6910.131.26.32/2910.131.26.33 – 10.131.26.3810.131.26.39
7010.131.26.40/2910.131.26.41 – 10.131.26.4610.131.26.47
7110.131.26.48/2910.131.26.49 – 10.131.26.5410.131.26.55
7210.131.26.56/2910.131.26.57 – 10.131.26.6210.131.26.63
7310.131.26.64/2910.131.26.65 – 10.131.26.7010.131.26.71
7410.131.26.72/2910.131.26.73 – 10.131.26.7810.131.26.79
7510.131.26.80/2910.131.26.81 – 10.131.26.8610.131.26.87
7610.131.26.88/2910.131.26.89 – 10.131.26.9410.131.26.95
7710.131.26.96/2910.131.26.97 – 10.131.26.10210.131.26.103
7810.131.26.104/2910.131.26.105 – 10.131.26.11010.131.26.111
7910.131.26.112/2910.131.26.113 – 10.131.26.11810.131.26.119
8010.131.26.120/2910.131.26.121 – 10.131.26.12610.131.26.127
8110.131.26.128/2910.131.26.129 – 10.131.26.13410.131.26.135
8210.131.26.136/2910.131.26.137 – 10.131.26.14210.131.26.143
8310.131.26.144/2910.131.26.145 – 10.131.26.15010.131.26.151
8410.131.26.152/2910.131.26.153 – 10.131.26.15810.131.26.159
8510.131.26.160/2910.131.26.161 – 10.131.26.16610.131.26.167
8610.131.26.168/2910.131.26.169 – 10.131.26.17410.131.26.175
8710.131.26.176/2910.131.26.177 – 10.131.26.18210.131.26.183
8810.131.26.184/2910.131.26.185 – 10.131.26.19010.131.26.191
8910.131.26.192/2910.131.26.193 – 10.131.26.19810.131.26.199
9010.131.26.200/2910.131.26.201 – 10.131.26.20610.131.26.207
9110.131.26.208/2910.131.26.209 – 10.131.26.21410.131.26.215
9210.131.26.216/2910.131.26.217 – 10.131.26.22210.131.26.223
9310.131.26.224/2910.131.26.225 – 10.131.26.23010.131.26.231
9410.131.26.232/2910.131.26.233 – 10.131.26.23810.131.26.239
9510.131.26.240/2910.131.26.241 – 10.131.26.24610.131.26.247
9610.131.26.248/2910.131.26.249 – 10.131.26.25410.131.26.255
9710.131.27.0/2910.131.27.1 – 10.131.27.610.131.27.7
9810.131.27.8/2910.131.27.9 – 10.131.27.1410.131.27.15
9910.131.27.16/2910.131.27.17 – 10.131.27.2210.131.27.23
10010.131.27.24/2910.131.27.25 – 10.131.27.3010.131.27.31
10110.131.27.32/2910.131.27.33 – 10.131.27.3810.131.27.39
10210.131.27.40/2910.131.27.41 – 10.131.27.4610.131.27.47
10310.131.27.48/2910.131.27.49 – 10.131.27.5410.131.27.55
10410.131.27.56/2910.131.27.57 – 10.131.27.6210.131.27.63
10510.131.27.64/2910.131.27.65 – 10.131.27.7010.131.27.71
10610.131.27.72/2910.131.27.73 – 10.131.27.7810.131.27.79
10710.131.27.80/2910.131.27.81 – 10.131.27.8610.131.27.87
10810.131.27.88/2910.131.27.89 – 10.131.27.9410.131.27.95
10910.131.27.96/2910.131.27.97 – 10.131.27.10210.131.27.103
11010.131.27.104/2910.131.27.105 – 10.131.27.11010.131.27.111
11110.131.27.112/2910.131.27.113 – 10.131.27.11810.131.27.119
11210.131.27.120/2910.131.27.121 – 10.131.27.12610.131.27.127
11310.131.27.128/2910.131.27.129 – 10.131.27.13410.131.27.135
11410.131.27.136/2910.131.27.137 – 10.131.27.14210.131.27.143
11510.131.27.144/2910.131.27.145 – 10.131.27.15010.131.27.151
11610.131.27.152/2910.131.27.153 – 10.131.27.15810.131.27.159
11710.131.27.160/2910.131.27.161 – 10.131.27.16610.131.27.167
11810.131.27.168/2910.131.27.169 – 10.131.27.17410.131.27.175
11910.131.27.176/2910.131.27.177 – 10.131.27.18210.131.27.183
12010.131.27.184/2910.131.27.185 – 10.131.27.19010.131.27.191
12110.131.27.192/2910.131.27.193 – 10.131.27.19810.131.27.199
12210.131.27.200/2910.131.27.201 – 10.131.27.20610.131.27.207
12310.131.27.208/2910.131.27.209 – 10.131.27.21410.131.27.215
12410.131.27.216/2910.131.27.217 – 10.131.27.22210.131.27.223
12510.131.27.224/2910.131.27.225 – 10.131.27.23010.131.27.231
12610.131.27.232/2910.131.27.233 – 10.131.27.23810.131.27.239
12710.131.27.240/2910.131.27.241 – 10.131.27.24610.131.27.247
12810.131.27.248/2910.131.27.249 – 10.131.27.25410.131.27.255
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 →