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)10.2.0.0/22
network10.2.0.0/22
broadcast10.2.3.255
first host10.2.0.1
last host10.2.3.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.2.0.0/22
address00001010.00000010.00000000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00000010.00000000.00000000
broadcast00001010.00000010.00000011.11111111
green = network part, grey = host part
hex0x0a020000
decimal167903232
reverse dns0.0.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:0

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.0.0/2910.2.0.1 – 10.2.0.610.2.0.7
210.2.0.8/2910.2.0.9 – 10.2.0.1410.2.0.15
310.2.0.16/2910.2.0.17 – 10.2.0.2210.2.0.23
410.2.0.24/2910.2.0.25 – 10.2.0.3010.2.0.31
510.2.0.32/2910.2.0.33 – 10.2.0.3810.2.0.39
610.2.0.40/2910.2.0.41 – 10.2.0.4610.2.0.47
710.2.0.48/2910.2.0.49 – 10.2.0.5410.2.0.55
810.2.0.56/2910.2.0.57 – 10.2.0.6210.2.0.63
910.2.0.64/2910.2.0.65 – 10.2.0.7010.2.0.71
1010.2.0.72/2910.2.0.73 – 10.2.0.7810.2.0.79
1110.2.0.80/2910.2.0.81 – 10.2.0.8610.2.0.87
1210.2.0.88/2910.2.0.89 – 10.2.0.9410.2.0.95
1310.2.0.96/2910.2.0.97 – 10.2.0.10210.2.0.103
1410.2.0.104/2910.2.0.105 – 10.2.0.11010.2.0.111
1510.2.0.112/2910.2.0.113 – 10.2.0.11810.2.0.119
1610.2.0.120/2910.2.0.121 – 10.2.0.12610.2.0.127
1710.2.0.128/2910.2.0.129 – 10.2.0.13410.2.0.135
1810.2.0.136/2910.2.0.137 – 10.2.0.14210.2.0.143
1910.2.0.144/2910.2.0.145 – 10.2.0.15010.2.0.151
2010.2.0.152/2910.2.0.153 – 10.2.0.15810.2.0.159
2110.2.0.160/2910.2.0.161 – 10.2.0.16610.2.0.167
2210.2.0.168/2910.2.0.169 – 10.2.0.17410.2.0.175
2310.2.0.176/2910.2.0.177 – 10.2.0.18210.2.0.183
2410.2.0.184/2910.2.0.185 – 10.2.0.19010.2.0.191
2510.2.0.192/2910.2.0.193 – 10.2.0.19810.2.0.199
2610.2.0.200/2910.2.0.201 – 10.2.0.20610.2.0.207
2710.2.0.208/2910.2.0.209 – 10.2.0.21410.2.0.215
2810.2.0.216/2910.2.0.217 – 10.2.0.22210.2.0.223
2910.2.0.224/2910.2.0.225 – 10.2.0.23010.2.0.231
3010.2.0.232/2910.2.0.233 – 10.2.0.23810.2.0.239
3110.2.0.240/2910.2.0.241 – 10.2.0.24610.2.0.247
3210.2.0.248/2910.2.0.249 – 10.2.0.25410.2.0.255
3310.2.1.0/2910.2.1.1 – 10.2.1.610.2.1.7
3410.2.1.8/2910.2.1.9 – 10.2.1.1410.2.1.15
3510.2.1.16/2910.2.1.17 – 10.2.1.2210.2.1.23
3610.2.1.24/2910.2.1.25 – 10.2.1.3010.2.1.31
3710.2.1.32/2910.2.1.33 – 10.2.1.3810.2.1.39
3810.2.1.40/2910.2.1.41 – 10.2.1.4610.2.1.47
3910.2.1.48/2910.2.1.49 – 10.2.1.5410.2.1.55
4010.2.1.56/2910.2.1.57 – 10.2.1.6210.2.1.63
4110.2.1.64/2910.2.1.65 – 10.2.1.7010.2.1.71
4210.2.1.72/2910.2.1.73 – 10.2.1.7810.2.1.79
4310.2.1.80/2910.2.1.81 – 10.2.1.8610.2.1.87
4410.2.1.88/2910.2.1.89 – 10.2.1.9410.2.1.95
4510.2.1.96/2910.2.1.97 – 10.2.1.10210.2.1.103
4610.2.1.104/2910.2.1.105 – 10.2.1.11010.2.1.111
4710.2.1.112/2910.2.1.113 – 10.2.1.11810.2.1.119
4810.2.1.120/2910.2.1.121 – 10.2.1.12610.2.1.127
4910.2.1.128/2910.2.1.129 – 10.2.1.13410.2.1.135
5010.2.1.136/2910.2.1.137 – 10.2.1.14210.2.1.143
5110.2.1.144/2910.2.1.145 – 10.2.1.15010.2.1.151
5210.2.1.152/2910.2.1.153 – 10.2.1.15810.2.1.159
5310.2.1.160/2910.2.1.161 – 10.2.1.16610.2.1.167
5410.2.1.168/2910.2.1.169 – 10.2.1.17410.2.1.175
5510.2.1.176/2910.2.1.177 – 10.2.1.18210.2.1.183
5610.2.1.184/2910.2.1.185 – 10.2.1.19010.2.1.191
5710.2.1.192/2910.2.1.193 – 10.2.1.19810.2.1.199
5810.2.1.200/2910.2.1.201 – 10.2.1.20610.2.1.207
5910.2.1.208/2910.2.1.209 – 10.2.1.21410.2.1.215
6010.2.1.216/2910.2.1.217 – 10.2.1.22210.2.1.223
6110.2.1.224/2910.2.1.225 – 10.2.1.23010.2.1.231
6210.2.1.232/2910.2.1.233 – 10.2.1.23810.2.1.239
6310.2.1.240/2910.2.1.241 – 10.2.1.24610.2.1.247
6410.2.1.248/2910.2.1.249 – 10.2.1.25410.2.1.255
6510.2.2.0/2910.2.2.1 – 10.2.2.610.2.2.7
6610.2.2.8/2910.2.2.9 – 10.2.2.1410.2.2.15
6710.2.2.16/2910.2.2.17 – 10.2.2.2210.2.2.23
6810.2.2.24/2910.2.2.25 – 10.2.2.3010.2.2.31
6910.2.2.32/2910.2.2.33 – 10.2.2.3810.2.2.39
7010.2.2.40/2910.2.2.41 – 10.2.2.4610.2.2.47
7110.2.2.48/2910.2.2.49 – 10.2.2.5410.2.2.55
7210.2.2.56/2910.2.2.57 – 10.2.2.6210.2.2.63
7310.2.2.64/2910.2.2.65 – 10.2.2.7010.2.2.71
7410.2.2.72/2910.2.2.73 – 10.2.2.7810.2.2.79
7510.2.2.80/2910.2.2.81 – 10.2.2.8610.2.2.87
7610.2.2.88/2910.2.2.89 – 10.2.2.9410.2.2.95
7710.2.2.96/2910.2.2.97 – 10.2.2.10210.2.2.103
7810.2.2.104/2910.2.2.105 – 10.2.2.11010.2.2.111
7910.2.2.112/2910.2.2.113 – 10.2.2.11810.2.2.119
8010.2.2.120/2910.2.2.121 – 10.2.2.12610.2.2.127
8110.2.2.128/2910.2.2.129 – 10.2.2.13410.2.2.135
8210.2.2.136/2910.2.2.137 – 10.2.2.14210.2.2.143
8310.2.2.144/2910.2.2.145 – 10.2.2.15010.2.2.151
8410.2.2.152/2910.2.2.153 – 10.2.2.15810.2.2.159
8510.2.2.160/2910.2.2.161 – 10.2.2.16610.2.2.167
8610.2.2.168/2910.2.2.169 – 10.2.2.17410.2.2.175
8710.2.2.176/2910.2.2.177 – 10.2.2.18210.2.2.183
8810.2.2.184/2910.2.2.185 – 10.2.2.19010.2.2.191
8910.2.2.192/2910.2.2.193 – 10.2.2.19810.2.2.199
9010.2.2.200/2910.2.2.201 – 10.2.2.20610.2.2.207
9110.2.2.208/2910.2.2.209 – 10.2.2.21410.2.2.215
9210.2.2.216/2910.2.2.217 – 10.2.2.22210.2.2.223
9310.2.2.224/2910.2.2.225 – 10.2.2.23010.2.2.231
9410.2.2.232/2910.2.2.233 – 10.2.2.23810.2.2.239
9510.2.2.240/2910.2.2.241 – 10.2.2.24610.2.2.247
9610.2.2.248/2910.2.2.249 – 10.2.2.25410.2.2.255
9710.2.3.0/2910.2.3.1 – 10.2.3.610.2.3.7
9810.2.3.8/2910.2.3.9 – 10.2.3.1410.2.3.15
9910.2.3.16/2910.2.3.17 – 10.2.3.2210.2.3.23
10010.2.3.24/2910.2.3.25 – 10.2.3.3010.2.3.31
10110.2.3.32/2910.2.3.33 – 10.2.3.3810.2.3.39
10210.2.3.40/2910.2.3.41 – 10.2.3.4610.2.3.47
10310.2.3.48/2910.2.3.49 – 10.2.3.5410.2.3.55
10410.2.3.56/2910.2.3.57 – 10.2.3.6210.2.3.63
10510.2.3.64/2910.2.3.65 – 10.2.3.7010.2.3.71
10610.2.3.72/2910.2.3.73 – 10.2.3.7810.2.3.79
10710.2.3.80/2910.2.3.81 – 10.2.3.8610.2.3.87
10810.2.3.88/2910.2.3.89 – 10.2.3.9410.2.3.95
10910.2.3.96/2910.2.3.97 – 10.2.3.10210.2.3.103
11010.2.3.104/2910.2.3.105 – 10.2.3.11010.2.3.111
11110.2.3.112/2910.2.3.113 – 10.2.3.11810.2.3.119
11210.2.3.120/2910.2.3.121 – 10.2.3.12610.2.3.127
11310.2.3.128/2910.2.3.129 – 10.2.3.13410.2.3.135
11410.2.3.136/2910.2.3.137 – 10.2.3.14210.2.3.143
11510.2.3.144/2910.2.3.145 – 10.2.3.15010.2.3.151
11610.2.3.152/2910.2.3.153 – 10.2.3.15810.2.3.159
11710.2.3.160/2910.2.3.161 – 10.2.3.16610.2.3.167
11810.2.3.168/2910.2.3.169 – 10.2.3.17410.2.3.175
11910.2.3.176/2910.2.3.177 – 10.2.3.18210.2.3.183
12010.2.3.184/2910.2.3.185 – 10.2.3.19010.2.3.191
12110.2.3.192/2910.2.3.193 – 10.2.3.19810.2.3.199
12210.2.3.200/2910.2.3.201 – 10.2.3.20610.2.3.207
12310.2.3.208/2910.2.3.209 – 10.2.3.21410.2.3.215
12410.2.3.216/2910.2.3.217 – 10.2.3.22210.2.3.223
12510.2.3.224/2910.2.3.225 – 10.2.3.23010.2.3.231
12610.2.3.232/2910.2.3.233 – 10.2.3.23810.2.3.239
12710.2.3.240/2910.2.3.241 – 10.2.3.24610.2.3.247
12810.2.3.248/2910.2.3.249 – 10.2.3.25410.2.3.255
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 →