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)10.205.232.0/22
network10.205.232.0/22
broadcast10.205.235.255
first host10.205.232.1
last host10.205.235.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.205.232.0/22
address00001010.11001101.11101000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11001101.11101000.00000000
broadcast00001010.11001101.11101011.11111111
green = network part, grey = host part
hex0x0acde800
decimal181266432
reverse dns0.232.205.10.in-addr.arpa
ipv4-mapped::ffff:acd:e800

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.205.232.0/2910.205.232.1 – 10.205.232.610.205.232.7
210.205.232.8/2910.205.232.9 – 10.205.232.1410.205.232.15
310.205.232.16/2910.205.232.17 – 10.205.232.2210.205.232.23
410.205.232.24/2910.205.232.25 – 10.205.232.3010.205.232.31
510.205.232.32/2910.205.232.33 – 10.205.232.3810.205.232.39
610.205.232.40/2910.205.232.41 – 10.205.232.4610.205.232.47
710.205.232.48/2910.205.232.49 – 10.205.232.5410.205.232.55
810.205.232.56/2910.205.232.57 – 10.205.232.6210.205.232.63
910.205.232.64/2910.205.232.65 – 10.205.232.7010.205.232.71
1010.205.232.72/2910.205.232.73 – 10.205.232.7810.205.232.79
1110.205.232.80/2910.205.232.81 – 10.205.232.8610.205.232.87
1210.205.232.88/2910.205.232.89 – 10.205.232.9410.205.232.95
1310.205.232.96/2910.205.232.97 – 10.205.232.10210.205.232.103
1410.205.232.104/2910.205.232.105 – 10.205.232.11010.205.232.111
1510.205.232.112/2910.205.232.113 – 10.205.232.11810.205.232.119
1610.205.232.120/2910.205.232.121 – 10.205.232.12610.205.232.127
1710.205.232.128/2910.205.232.129 – 10.205.232.13410.205.232.135
1810.205.232.136/2910.205.232.137 – 10.205.232.14210.205.232.143
1910.205.232.144/2910.205.232.145 – 10.205.232.15010.205.232.151
2010.205.232.152/2910.205.232.153 – 10.205.232.15810.205.232.159
2110.205.232.160/2910.205.232.161 – 10.205.232.16610.205.232.167
2210.205.232.168/2910.205.232.169 – 10.205.232.17410.205.232.175
2310.205.232.176/2910.205.232.177 – 10.205.232.18210.205.232.183
2410.205.232.184/2910.205.232.185 – 10.205.232.19010.205.232.191
2510.205.232.192/2910.205.232.193 – 10.205.232.19810.205.232.199
2610.205.232.200/2910.205.232.201 – 10.205.232.20610.205.232.207
2710.205.232.208/2910.205.232.209 – 10.205.232.21410.205.232.215
2810.205.232.216/2910.205.232.217 – 10.205.232.22210.205.232.223
2910.205.232.224/2910.205.232.225 – 10.205.232.23010.205.232.231
3010.205.232.232/2910.205.232.233 – 10.205.232.23810.205.232.239
3110.205.232.240/2910.205.232.241 – 10.205.232.24610.205.232.247
3210.205.232.248/2910.205.232.249 – 10.205.232.25410.205.232.255
3310.205.233.0/2910.205.233.1 – 10.205.233.610.205.233.7
3410.205.233.8/2910.205.233.9 – 10.205.233.1410.205.233.15
3510.205.233.16/2910.205.233.17 – 10.205.233.2210.205.233.23
3610.205.233.24/2910.205.233.25 – 10.205.233.3010.205.233.31
3710.205.233.32/2910.205.233.33 – 10.205.233.3810.205.233.39
3810.205.233.40/2910.205.233.41 – 10.205.233.4610.205.233.47
3910.205.233.48/2910.205.233.49 – 10.205.233.5410.205.233.55
4010.205.233.56/2910.205.233.57 – 10.205.233.6210.205.233.63
4110.205.233.64/2910.205.233.65 – 10.205.233.7010.205.233.71
4210.205.233.72/2910.205.233.73 – 10.205.233.7810.205.233.79
4310.205.233.80/2910.205.233.81 – 10.205.233.8610.205.233.87
4410.205.233.88/2910.205.233.89 – 10.205.233.9410.205.233.95
4510.205.233.96/2910.205.233.97 – 10.205.233.10210.205.233.103
4610.205.233.104/2910.205.233.105 – 10.205.233.11010.205.233.111
4710.205.233.112/2910.205.233.113 – 10.205.233.11810.205.233.119
4810.205.233.120/2910.205.233.121 – 10.205.233.12610.205.233.127
4910.205.233.128/2910.205.233.129 – 10.205.233.13410.205.233.135
5010.205.233.136/2910.205.233.137 – 10.205.233.14210.205.233.143
5110.205.233.144/2910.205.233.145 – 10.205.233.15010.205.233.151
5210.205.233.152/2910.205.233.153 – 10.205.233.15810.205.233.159
5310.205.233.160/2910.205.233.161 – 10.205.233.16610.205.233.167
5410.205.233.168/2910.205.233.169 – 10.205.233.17410.205.233.175
5510.205.233.176/2910.205.233.177 – 10.205.233.18210.205.233.183
5610.205.233.184/2910.205.233.185 – 10.205.233.19010.205.233.191
5710.205.233.192/2910.205.233.193 – 10.205.233.19810.205.233.199
5810.205.233.200/2910.205.233.201 – 10.205.233.20610.205.233.207
5910.205.233.208/2910.205.233.209 – 10.205.233.21410.205.233.215
6010.205.233.216/2910.205.233.217 – 10.205.233.22210.205.233.223
6110.205.233.224/2910.205.233.225 – 10.205.233.23010.205.233.231
6210.205.233.232/2910.205.233.233 – 10.205.233.23810.205.233.239
6310.205.233.240/2910.205.233.241 – 10.205.233.24610.205.233.247
6410.205.233.248/2910.205.233.249 – 10.205.233.25410.205.233.255
6510.205.234.0/2910.205.234.1 – 10.205.234.610.205.234.7
6610.205.234.8/2910.205.234.9 – 10.205.234.1410.205.234.15
6710.205.234.16/2910.205.234.17 – 10.205.234.2210.205.234.23
6810.205.234.24/2910.205.234.25 – 10.205.234.3010.205.234.31
6910.205.234.32/2910.205.234.33 – 10.205.234.3810.205.234.39
7010.205.234.40/2910.205.234.41 – 10.205.234.4610.205.234.47
7110.205.234.48/2910.205.234.49 – 10.205.234.5410.205.234.55
7210.205.234.56/2910.205.234.57 – 10.205.234.6210.205.234.63
7310.205.234.64/2910.205.234.65 – 10.205.234.7010.205.234.71
7410.205.234.72/2910.205.234.73 – 10.205.234.7810.205.234.79
7510.205.234.80/2910.205.234.81 – 10.205.234.8610.205.234.87
7610.205.234.88/2910.205.234.89 – 10.205.234.9410.205.234.95
7710.205.234.96/2910.205.234.97 – 10.205.234.10210.205.234.103
7810.205.234.104/2910.205.234.105 – 10.205.234.11010.205.234.111
7910.205.234.112/2910.205.234.113 – 10.205.234.11810.205.234.119
8010.205.234.120/2910.205.234.121 – 10.205.234.12610.205.234.127
8110.205.234.128/2910.205.234.129 – 10.205.234.13410.205.234.135
8210.205.234.136/2910.205.234.137 – 10.205.234.14210.205.234.143
8310.205.234.144/2910.205.234.145 – 10.205.234.15010.205.234.151
8410.205.234.152/2910.205.234.153 – 10.205.234.15810.205.234.159
8510.205.234.160/2910.205.234.161 – 10.205.234.16610.205.234.167
8610.205.234.168/2910.205.234.169 – 10.205.234.17410.205.234.175
8710.205.234.176/2910.205.234.177 – 10.205.234.18210.205.234.183
8810.205.234.184/2910.205.234.185 – 10.205.234.19010.205.234.191
8910.205.234.192/2910.205.234.193 – 10.205.234.19810.205.234.199
9010.205.234.200/2910.205.234.201 – 10.205.234.20610.205.234.207
9110.205.234.208/2910.205.234.209 – 10.205.234.21410.205.234.215
9210.205.234.216/2910.205.234.217 – 10.205.234.22210.205.234.223
9310.205.234.224/2910.205.234.225 – 10.205.234.23010.205.234.231
9410.205.234.232/2910.205.234.233 – 10.205.234.23810.205.234.239
9510.205.234.240/2910.205.234.241 – 10.205.234.24610.205.234.247
9610.205.234.248/2910.205.234.249 – 10.205.234.25410.205.234.255
9710.205.235.0/2910.205.235.1 – 10.205.235.610.205.235.7
9810.205.235.8/2910.205.235.9 – 10.205.235.1410.205.235.15
9910.205.235.16/2910.205.235.17 – 10.205.235.2210.205.235.23
10010.205.235.24/2910.205.235.25 – 10.205.235.3010.205.235.31
10110.205.235.32/2910.205.235.33 – 10.205.235.3810.205.235.39
10210.205.235.40/2910.205.235.41 – 10.205.235.4610.205.235.47
10310.205.235.48/2910.205.235.49 – 10.205.235.5410.205.235.55
10410.205.235.56/2910.205.235.57 – 10.205.235.6210.205.235.63
10510.205.235.64/2910.205.235.65 – 10.205.235.7010.205.235.71
10610.205.235.72/2910.205.235.73 – 10.205.235.7810.205.235.79
10710.205.235.80/2910.205.235.81 – 10.205.235.8610.205.235.87
10810.205.235.88/2910.205.235.89 – 10.205.235.9410.205.235.95
10910.205.235.96/2910.205.235.97 – 10.205.235.10210.205.235.103
11010.205.235.104/2910.205.235.105 – 10.205.235.11010.205.235.111
11110.205.235.112/2910.205.235.113 – 10.205.235.11810.205.235.119
11210.205.235.120/2910.205.235.121 – 10.205.235.12610.205.235.127
11310.205.235.128/2910.205.235.129 – 10.205.235.13410.205.235.135
11410.205.235.136/2910.205.235.137 – 10.205.235.14210.205.235.143
11510.205.235.144/2910.205.235.145 – 10.205.235.15010.205.235.151
11610.205.235.152/2910.205.235.153 – 10.205.235.15810.205.235.159
11710.205.235.160/2910.205.235.161 – 10.205.235.16610.205.235.167
11810.205.235.168/2910.205.235.169 – 10.205.235.17410.205.235.175
11910.205.235.176/2910.205.235.177 – 10.205.235.18210.205.235.183
12010.205.235.184/2910.205.235.185 – 10.205.235.19010.205.235.191
12110.205.235.192/2910.205.235.193 – 10.205.235.19810.205.235.199
12210.205.235.200/2910.205.235.201 – 10.205.235.20610.205.235.207
12310.205.235.208/2910.205.235.209 – 10.205.235.21410.205.235.215
12410.205.235.216/2910.205.235.217 – 10.205.235.22210.205.235.223
12510.205.235.224/2910.205.235.225 – 10.205.235.23010.205.235.231
12610.205.235.232/2910.205.235.233 – 10.205.235.23810.205.235.239
12710.205.235.240/2910.205.235.241 – 10.205.235.24610.205.235.247
12810.205.235.248/2910.205.235.249 – 10.205.235.25410.205.235.255
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 →