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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)10.44.84.0/22
network10.44.84.0/22
broadcast10.44.87.255
first host10.44.84.1
last host10.44.87.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.44.84.0/22
address00001010.00101100.01010100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00101100.01010100.00000000
broadcast00001010.00101100.01010111.11111111
green = network part, grey = host part
hex0x0a2c5400
decimal170677248
reverse dns0.84.44.10.in-addr.arpa
ipv4-mapped::ffff:a2c:5400

/22 split into /28 · 64 subnets

close ×
#networkhost rangebroadcast
110.44.84.0/2810.44.84.1 – 10.44.84.1410.44.84.15
210.44.84.16/2810.44.84.17 – 10.44.84.3010.44.84.31
310.44.84.32/2810.44.84.33 – 10.44.84.4610.44.84.47
410.44.84.48/2810.44.84.49 – 10.44.84.6210.44.84.63
510.44.84.64/2810.44.84.65 – 10.44.84.7810.44.84.79
610.44.84.80/2810.44.84.81 – 10.44.84.9410.44.84.95
710.44.84.96/2810.44.84.97 – 10.44.84.11010.44.84.111
810.44.84.112/2810.44.84.113 – 10.44.84.12610.44.84.127
910.44.84.128/2810.44.84.129 – 10.44.84.14210.44.84.143
1010.44.84.144/2810.44.84.145 – 10.44.84.15810.44.84.159
1110.44.84.160/2810.44.84.161 – 10.44.84.17410.44.84.175
1210.44.84.176/2810.44.84.177 – 10.44.84.19010.44.84.191
1310.44.84.192/2810.44.84.193 – 10.44.84.20610.44.84.207
1410.44.84.208/2810.44.84.209 – 10.44.84.22210.44.84.223
1510.44.84.224/2810.44.84.225 – 10.44.84.23810.44.84.239
1610.44.84.240/2810.44.84.241 – 10.44.84.25410.44.84.255
1710.44.85.0/2810.44.85.1 – 10.44.85.1410.44.85.15
1810.44.85.16/2810.44.85.17 – 10.44.85.3010.44.85.31
1910.44.85.32/2810.44.85.33 – 10.44.85.4610.44.85.47
2010.44.85.48/2810.44.85.49 – 10.44.85.6210.44.85.63
2110.44.85.64/2810.44.85.65 – 10.44.85.7810.44.85.79
2210.44.85.80/2810.44.85.81 – 10.44.85.9410.44.85.95
2310.44.85.96/2810.44.85.97 – 10.44.85.11010.44.85.111
2410.44.85.112/2810.44.85.113 – 10.44.85.12610.44.85.127
2510.44.85.128/2810.44.85.129 – 10.44.85.14210.44.85.143
2610.44.85.144/2810.44.85.145 – 10.44.85.15810.44.85.159
2710.44.85.160/2810.44.85.161 – 10.44.85.17410.44.85.175
2810.44.85.176/2810.44.85.177 – 10.44.85.19010.44.85.191
2910.44.85.192/2810.44.85.193 – 10.44.85.20610.44.85.207
3010.44.85.208/2810.44.85.209 – 10.44.85.22210.44.85.223
3110.44.85.224/2810.44.85.225 – 10.44.85.23810.44.85.239
3210.44.85.240/2810.44.85.241 – 10.44.85.25410.44.85.255
3310.44.86.0/2810.44.86.1 – 10.44.86.1410.44.86.15
3410.44.86.16/2810.44.86.17 – 10.44.86.3010.44.86.31
3510.44.86.32/2810.44.86.33 – 10.44.86.4610.44.86.47
3610.44.86.48/2810.44.86.49 – 10.44.86.6210.44.86.63
3710.44.86.64/2810.44.86.65 – 10.44.86.7810.44.86.79
3810.44.86.80/2810.44.86.81 – 10.44.86.9410.44.86.95
3910.44.86.96/2810.44.86.97 – 10.44.86.11010.44.86.111
4010.44.86.112/2810.44.86.113 – 10.44.86.12610.44.86.127
4110.44.86.128/2810.44.86.129 – 10.44.86.14210.44.86.143
4210.44.86.144/2810.44.86.145 – 10.44.86.15810.44.86.159
4310.44.86.160/2810.44.86.161 – 10.44.86.17410.44.86.175
4410.44.86.176/2810.44.86.177 – 10.44.86.19010.44.86.191
4510.44.86.192/2810.44.86.193 – 10.44.86.20610.44.86.207
4610.44.86.208/2810.44.86.209 – 10.44.86.22210.44.86.223
4710.44.86.224/2810.44.86.225 – 10.44.86.23810.44.86.239
4810.44.86.240/2810.44.86.241 – 10.44.86.25410.44.86.255
4910.44.87.0/2810.44.87.1 – 10.44.87.1410.44.87.15
5010.44.87.16/2810.44.87.17 – 10.44.87.3010.44.87.31
5110.44.87.32/2810.44.87.33 – 10.44.87.4610.44.87.47
5210.44.87.48/2810.44.87.49 – 10.44.87.6210.44.87.63
5310.44.87.64/2810.44.87.65 – 10.44.87.7810.44.87.79
5410.44.87.80/2810.44.87.81 – 10.44.87.9410.44.87.95
5510.44.87.96/2810.44.87.97 – 10.44.87.11010.44.87.111
5610.44.87.112/2810.44.87.113 – 10.44.87.12610.44.87.127
5710.44.87.128/2810.44.87.129 – 10.44.87.14210.44.87.143
5810.44.87.144/2810.44.87.145 – 10.44.87.15810.44.87.159
5910.44.87.160/2810.44.87.161 – 10.44.87.17410.44.87.175
6010.44.87.176/2810.44.87.177 – 10.44.87.19010.44.87.191
6110.44.87.192/2810.44.87.193 – 10.44.87.20610.44.87.207
6210.44.87.208/2810.44.87.209 – 10.44.87.22210.44.87.223
6310.44.87.224/2810.44.87.225 – 10.44.87.23810.44.87.239
6410.44.87.240/2810.44.87.241 – 10.44.87.25410.44.87.255
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 →